Expr.h revision 27a5b9b9babd1e4f8a19c5c9c0736c4b311c79b2
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 2592e5f54aa1dd15a62c34a9d1d24a5a0692f43934aTed Kremenek /// hasGlobalStorage - Return true if this expression has static storage 2604cc627111453b75519d5130b57e06256da7b00e8Chris Lattner /// duration. This means that the address of this expression is a link-time 2614cc627111453b75519d5130b57e06256da7b00e8Chris Lattner /// constant. 2622e5f54aa1dd15a62c34a9d1d24a5a0692f43934aTed Kremenek bool hasGlobalStorage() const; 26344baa8abba2a1552b6b50bf750a8750ab9da9f76Fariborz Jahanian 26444baa8abba2a1552b6b50bf750a8750ab9da9f76Fariborz Jahanian /// isOBJCGCCandidate - Return true if this expression may be used in a read/ 26544baa8abba2a1552b6b50bf750a8750ab9da9f76Fariborz Jahanian /// write barrier. 266102e390bcb5a1fb1a8fdbc8505e6dfd905374bbdFariborz Jahanian bool isOBJCGCCandidate(ASTContext &Ctx) const; 2674e99a5fc3b203397a91136c6e695e405fb8fc606Ted Kremenek 2684e99a5fc3b203397a91136c6e695e405fb8fc606Ted Kremenek /// IgnoreParens - Ignore parentheses. If this Expr is a ParenExpr, return 2694e99a5fc3b203397a91136c6e695e405fb8fc606Ted Kremenek /// its subexpression. If that subexpression is also a ParenExpr, 2704e99a5fc3b203397a91136c6e695e405fb8fc606Ted Kremenek /// then this method recursively returns its subexpression, and so forth. 2714e99a5fc3b203397a91136c6e695e405fb8fc606Ted Kremenek /// Otherwise, the method returns the current Expr. 2724e99a5fc3b203397a91136c6e695e405fb8fc606Ted Kremenek Expr* IgnoreParens(); 27356f349400c5932a196509c0480ff6f99a9a0b48fChris Lattner 27456f349400c5932a196509c0480ff6f99a9a0b48fChris Lattner /// IgnoreParenCasts - Ignore parentheses and casts. Strip off any ParenExpr 27527c8dc06f65d7abcf6a7e7f64a7960c9a150ca01Douglas Gregor /// or CastExprs, returning their operand. 27656f349400c5932a196509c0480ff6f99a9a0b48fChris Lattner Expr *IgnoreParenCasts(); 2774e99a5fc3b203397a91136c6e695e405fb8fc606Ted Kremenek 278ecdd84147c0765caa999ddc22dde25b42712bb4dChris Lattner /// IgnoreParenNoopCasts - Ignore parentheses and casts that do not change the 279ecdd84147c0765caa999ddc22dde25b42712bb4dChris Lattner /// value (including ptr->int casts of the same size). Strip off any 280ecdd84147c0765caa999ddc22dde25b42712bb4dChris Lattner /// ParenExpr or CastExprs, returning their operand. 281ecdd84147c0765caa999ddc22dde25b42712bb4dChris Lattner Expr *IgnoreParenNoopCasts(ASTContext &Ctx); 282ecdd84147c0765caa999ddc22dde25b42712bb4dChris Lattner 2834e99a5fc3b203397a91136c6e695e405fb8fc606Ted Kremenek const Expr* IgnoreParens() const { 2844e99a5fc3b203397a91136c6e695e405fb8fc606Ted Kremenek return const_cast<Expr*>(this)->IgnoreParens(); 2854e99a5fc3b203397a91136c6e695e405fb8fc606Ted Kremenek } 28656f349400c5932a196509c0480ff6f99a9a0b48fChris Lattner const Expr *IgnoreParenCasts() const { 28756f349400c5932a196509c0480ff6f99a9a0b48fChris Lattner return const_cast<Expr*>(this)->IgnoreParenCasts(); 28856f349400c5932a196509c0480ff6f99a9a0b48fChris Lattner } 289ecdd84147c0765caa999ddc22dde25b42712bb4dChris Lattner const Expr *IgnoreParenNoopCasts(ASTContext &Ctx) const { 290ecdd84147c0765caa999ddc22dde25b42712bb4dChris Lattner return const_cast<Expr*>(this)->IgnoreParenNoopCasts(Ctx); 291ecdd84147c0765caa999ddc22dde25b42712bb4dChris Lattner } 292ecdd84147c0765caa999ddc22dde25b42712bb4dChris Lattner 293898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor static bool hasAnyTypeDependentArguments(Expr** Exprs, unsigned NumExprs); 294898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor static bool hasAnyValueDependentArguments(Expr** Exprs, unsigned NumExprs); 295898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor 2965f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const Stmt *T) { 2975f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return T->getStmtClass() >= firstExprConstant && 2985f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer T->getStmtClass() <= lastExprConstant; 2995f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 3005f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const Expr *) { return true; } 3015f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 3025f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 3035549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek 3045549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek//===----------------------------------------------------------------------===// 3055f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// Primary Expressions. 3065f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer//===----------------------------------------------------------------------===// 3075f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 3085f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// DeclRefExpr - [C99 6.5.1p2] - A reference to a declared variable, function, 3095f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// enum, etc. 3105f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass DeclRefExpr : public Expr { 3118e9bebdea69c590dedfbf27374114cb76fe12fbdDouglas Gregor NamedDecl *D; 3125f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation Loc; 3139e922b1663ecb95dc7eee03002fd66ed18fb3192Argyrios Kyrtzidis 3149e922b1663ecb95dc7eee03002fd66ed18fb3192Argyrios Kyrtzidisprotected: 3151a49af9681c350fef58e677f85ccb9a77e8e9d0aDouglas Gregor // FIXME: Eventually, this constructor will go away and all subclasses 3161a49af9681c350fef58e677f85ccb9a77e8e9d0aDouglas Gregor // will have to provide the type- and value-dependent flags. 3178e9bebdea69c590dedfbf27374114cb76fe12fbdDouglas Gregor DeclRefExpr(StmtClass SC, NamedDecl *d, QualType t, SourceLocation l) : 3189e922b1663ecb95dc7eee03002fd66ed18fb3192Argyrios Kyrtzidis Expr(SC, t), D(d), Loc(l) {} 3199e922b1663ecb95dc7eee03002fd66ed18fb3192Argyrios Kyrtzidis 3201a49af9681c350fef58e677f85ccb9a77e8e9d0aDouglas Gregor DeclRefExpr(StmtClass SC, NamedDecl *d, QualType t, SourceLocation l, bool TD, 3211a49af9681c350fef58e677f85ccb9a77e8e9d0aDouglas Gregor bool VD) : 3221a49af9681c350fef58e677f85ccb9a77e8e9d0aDouglas Gregor Expr(SC, t, TD, VD), D(d), Loc(l) {} 3231a49af9681c350fef58e677f85ccb9a77e8e9d0aDouglas Gregor 3245f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 325898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // FIXME: Eventually, this constructor will go away and all clients 326898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // will have to provide the type- and value-dependent flags. 3278e9bebdea69c590dedfbf27374114cb76fe12fbdDouglas Gregor DeclRefExpr(NamedDecl *d, QualType t, SourceLocation l) : 3285f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Expr(DeclRefExprClass, t), D(d), Loc(l) {} 329898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor 330898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor DeclRefExpr(NamedDecl *d, QualType t, SourceLocation l, bool TD, bool VD) : 331898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor Expr(DeclRefExprClass, t, TD, VD), D(d), Loc(l) {} 3325f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 3330b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor /// \brief Construct an empty declaration reference expression. 3340b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor explicit DeclRefExpr(EmptyShell Empty) 3350b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor : Expr(DeclRefExprClass, Empty) { } 3360b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor 3378e9bebdea69c590dedfbf27374114cb76fe12fbdDouglas Gregor NamedDecl *getDecl() { return D; } 3388e9bebdea69c590dedfbf27374114cb76fe12fbdDouglas Gregor const NamedDecl *getDecl() const { return D; } 339904eed3f6148758d39a2d3c88f3133274460d645Douglas Gregor void setDecl(NamedDecl *NewD) { D = NewD; } 340904eed3f6148758d39a2d3c88f3133274460d645Douglas Gregor 3419e922b1663ecb95dc7eee03002fd66ed18fb3192Argyrios Kyrtzidis SourceLocation getLocation() const { return Loc; } 3420b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor void setLocation(SourceLocation L) { Loc = L; } 3435f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer virtual SourceRange getSourceRange() const { return SourceRange(Loc); } 3445f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 3455f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const Stmt *T) { 3469e922b1663ecb95dc7eee03002fd66ed18fb3192Argyrios Kyrtzidis return T->getStmtClass() == DeclRefExprClass || 3471a49af9681c350fef58e677f85ccb9a77e8e9d0aDouglas Gregor T->getStmtClass() == CXXConditionDeclExprClass || 3481a49af9681c350fef58e677f85ccb9a77e8e9d0aDouglas Gregor T->getStmtClass() == QualifiedDeclRefExprClass; 3495f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 3505f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const DeclRefExpr *) { return true; } 35177ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek 35277ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek // Iterators 35377ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_begin(); 35477ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_end(); 3555f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 3565f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 357d9f6910f4ef37c0e8eeee2a01287d9572c3176efChris Lattner/// PredefinedExpr - [C99 6.4.2.2] - A predefined identifier such as __func__. 358d9f6910f4ef37c0e8eeee2a01287d9572c3176efChris Lattnerclass PredefinedExpr : public Expr { 359227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlssonpublic: 360227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson enum IdentType { 361227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson Func, 362227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson Function, 363cd9b46e5442a3ef17f83f75177d8545cb5b3e2b9Douglas Gregor PrettyFunction 364227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson }; 365227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson 366227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlssonprivate: 367227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson SourceLocation Loc; 368227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson IdentType Type; 369227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlssonpublic: 370d9f6910f4ef37c0e8eeee2a01287d9572c3176efChris Lattner PredefinedExpr(SourceLocation l, QualType type, IdentType IT) 371d9f6910f4ef37c0e8eeee2a01287d9572c3176efChris Lattner : Expr(PredefinedExprClass, type), Loc(l), Type(IT) {} 372227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson 37317fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor /// \brief Construct an empty predefined expression. 37417fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor explicit PredefinedExpr(EmptyShell Empty) 37517fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor : Expr(PredefinedExprClass, Empty) { } 37617fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor 377227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson IdentType getIdentType() const { return Type; } 37817fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor void setIdentType(IdentType IT) { Type = IT; } 37917fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor 38017fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor SourceLocation getLocation() const { return Loc; } 38117fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor void setLocation(SourceLocation L) { Loc = L; } 38217fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor 383b5437d238752dc297e42410e98d38d5250fe0463Chris Lattner // FIXME: The logic for computing the value of a predefined expr should go 384b5437d238752dc297e42410e98d38d5250fe0463Chris Lattner // into a method here that takes the inner-most code decl (a block, function 385b5437d238752dc297e42410e98d38d5250fe0463Chris Lattner // or objc method) that the expr lives in. This would allow sema and codegen 386b5437d238752dc297e42410e98d38d5250fe0463Chris Lattner // to be consistent for things like sizeof(__func__) etc. 387b5437d238752dc297e42410e98d38d5250fe0463Chris Lattner 388227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson virtual SourceRange getSourceRange() const { return SourceRange(Loc); } 389227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson 390227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson static bool classof(const Stmt *T) { 391d9f6910f4ef37c0e8eeee2a01287d9572c3176efChris Lattner return T->getStmtClass() == PredefinedExprClass; 392227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson } 393d9f6910f4ef37c0e8eeee2a01287d9572c3176efChris Lattner static bool classof(const PredefinedExpr *) { return true; } 39477ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek 39577ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek // Iterators 39677ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_begin(); 39777ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_end(); 398227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson}; 399227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson 4005f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass IntegerLiteral : public Expr { 4015f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::APInt Value; 4025f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation Loc; 4035f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 4045f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // type should be IntTy, LongTy, LongLongTy, UnsignedIntTy, UnsignedLongTy, 4055f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // or UnsignedLongLongTy 4065f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer IntegerLiteral(const llvm::APInt &V, QualType type, SourceLocation l) 4075f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer : Expr(IntegerLiteralClass, type), Value(V), Loc(l) { 4085f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer assert(type->isIntegerType() && "Illegal type in IntegerLiteral"); 4095f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 410a135fb43eb94524a6529768596a4533eed9aa70dAnders Carlsson 4110b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor /// \brief Construct an empty integer literal. 4120b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor explicit IntegerLiteral(EmptyShell Empty) 4130b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor : Expr(IntegerLiteralClass, Empty) { } 4140b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor 4155f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer const llvm::APInt &getValue() const { return Value; } 4165f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer virtual SourceRange getSourceRange() const { return SourceRange(Loc); } 4175f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 418313a81dd820c9b2c0203bdcd974c781a81e4f0cfDouglas Gregor /// \brief Retrieve the location of the literal. 419313a81dd820c9b2c0203bdcd974c781a81e4f0cfDouglas Gregor SourceLocation getLocation() const { return Loc; } 420313a81dd820c9b2c0203bdcd974c781a81e4f0cfDouglas Gregor 4210b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor void setValue(const llvm::APInt &Val) { Value = Val; } 4220b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor void setLocation(SourceLocation Location) { Loc = Location; } 4230b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor 4245f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const Stmt *T) { 4255f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return T->getStmtClass() == IntegerLiteralClass; 4265f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 4275f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const IntegerLiteral *) { return true; } 42877ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek 42977ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek // Iterators 43077ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_begin(); 43177ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_end(); 4325f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 4335f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 4345f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass CharacterLiteral : public Expr { 4355f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer unsigned Value; 4365f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation Loc; 437c250aae4f645833aed3a6321bc8598f7330dce8dChris Lattner bool IsWide; 4385f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 4395f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // type should be IntTy 440c250aae4f645833aed3a6321bc8598f7330dce8dChris Lattner CharacterLiteral(unsigned value, bool iswide, QualType type, SourceLocation l) 441c250aae4f645833aed3a6321bc8598f7330dce8dChris Lattner : Expr(CharacterLiteralClass, type), Value(value), Loc(l), IsWide(iswide) { 4425f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 4430b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor 4440b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor /// \brief Construct an empty character literal. 4450b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor CharacterLiteral(EmptyShell Empty) : Expr(CharacterLiteralClass, Empty) { } 4460b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor 4472eadfb638eb1bb6ccfd6fd0453e764d47e27eed9Chris Lattner SourceLocation getLoc() const { return Loc; } 448c250aae4f645833aed3a6321bc8598f7330dce8dChris Lattner bool isWide() const { return IsWide; } 4492eadfb638eb1bb6ccfd6fd0453e764d47e27eed9Chris Lattner 4505f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer virtual SourceRange getSourceRange() const { return SourceRange(Loc); } 4515f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 4525f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer unsigned getValue() const { return Value; } 4535f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 4540b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor void setLocation(SourceLocation Location) { Loc = Location; } 4550b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor void setWide(bool W) { IsWide = W; } 4560b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor void setValue(unsigned Val) { Value = Val; } 4570b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor 4585f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const Stmt *T) { 4595f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return T->getStmtClass() == CharacterLiteralClass; 4605f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 4615f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const CharacterLiteral *) { return true; } 46277ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek 46377ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek // Iterators 46477ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_begin(); 46577ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_end(); 4665f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 4675f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 4685f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass FloatingLiteral : public Expr { 469525a05093a4816af961fe2bc6b8a81c17e2e26c2Chris Lattner llvm::APFloat Value; 470720c4ec57b6110873cd533ad434853a27e7c3f4aTed Kremenek bool IsExact : 1; 4715f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation Loc; 4725f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 473001d64dd2947c1ce06e3eac257a9a21c65ae4ff3Chris Lattner FloatingLiteral(const llvm::APFloat &V, bool isexact, 474720c4ec57b6110873cd533ad434853a27e7c3f4aTed Kremenek QualType Type, SourceLocation L) 475001d64dd2947c1ce06e3eac257a9a21c65ae4ff3Chris Lattner : Expr(FloatingLiteralClass, Type), Value(V), IsExact(isexact), Loc(L) {} 4765f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 47717fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor /// \brief Construct an empty floating-point literal. 4788b0b475b3464b0f70b91ba7d679d23c424677d5eSebastian Redl explicit FloatingLiteral(EmptyShell Empty) 47917fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor : Expr(FloatingLiteralClass, Empty), Value(0.0) { } 48017fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor 481c9bec4bfea9090a08dd83a7b213f0c8adf8d78ecChris Lattner const llvm::APFloat &getValue() const { return Value; } 48217fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor void setValue(const llvm::APFloat &Val) { Value = Val; } 48317fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor 484720c4ec57b6110873cd533ad434853a27e7c3f4aTed Kremenek bool isExact() const { return IsExact; } 48517fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor void setExact(bool E) { IsExact = E; } 486c9bec4bfea9090a08dd83a7b213f0c8adf8d78ecChris Lattner 487da8249e57f3badecf925571881fe57243935c6c1Chris Lattner /// getValueAsApproximateDouble - This returns the value as an inaccurate 488da8249e57f3badecf925571881fe57243935c6c1Chris Lattner /// double. Note that this may cause loss of precision, but is useful for 489da8249e57f3badecf925571881fe57243935c6c1Chris Lattner /// debugging dumps, etc. 490da8249e57f3badecf925571881fe57243935c6c1Chris Lattner double getValueAsApproximateDouble() const; 491da8249e57f3badecf925571881fe57243935c6c1Chris Lattner 49217fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor SourceLocation getLocation() const { return Loc; } 49317fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor void setLocation(SourceLocation L) { Loc = L; } 49417fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor 4954863db4266d066617a1e5ad7c0f3f28c7995c61bChris Lattner // FIXME: The logic for computing the value of a predefined expr should go 4964863db4266d066617a1e5ad7c0f3f28c7995c61bChris Lattner // into a method here that takes the inner-most code decl (a block, function 4974863db4266d066617a1e5ad7c0f3f28c7995c61bChris Lattner // or objc method) that the expr lives in. This would allow sema and codegen 4984863db4266d066617a1e5ad7c0f3f28c7995c61bChris Lattner // to be consistent for things like sizeof(__func__) etc. 4994863db4266d066617a1e5ad7c0f3f28c7995c61bChris Lattner 5005f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer virtual SourceRange getSourceRange() const { return SourceRange(Loc); } 5015f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 5025f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const Stmt *T) { 5035f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return T->getStmtClass() == FloatingLiteralClass; 5045f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 5055f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const FloatingLiteral *) { return true; } 50677ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek 50777ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek // Iterators 50877ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_begin(); 50977ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_end(); 5105f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 5115f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 5125d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner/// ImaginaryLiteral - We support imaginary integer and floating point literals, 5135d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner/// like "1.0i". We represent these as a wrapper around FloatingLiteral and 5145d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner/// IntegerLiteral classes. Instances of this class always have a Complex type 5155d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner/// whose element type matches the subexpression. 5165d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner/// 5175d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattnerclass ImaginaryLiteral : public Expr { 5185549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Stmt *Val; 5195d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattnerpublic: 5205d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner ImaginaryLiteral(Expr *val, QualType Ty) 5215d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner : Expr(ImaginaryLiteralClass, Ty), Val(val) {} 5225d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner 523cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor /// \brief Build an empty imaginary literal. 524cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor explicit ImaginaryLiteral(EmptyShell Empty) 525cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor : Expr(ImaginaryLiteralClass, Empty) { } 526cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor 5275549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek const Expr *getSubExpr() const { return cast<Expr>(Val); } 5285549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getSubExpr() { return cast<Expr>(Val); } 529cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor void setSubExpr(Expr *E) { Val = E; } 530cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor 5315d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner virtual SourceRange getSourceRange() const { return Val->getSourceRange(); } 5325d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner static bool classof(const Stmt *T) { 5335d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner return T->getStmtClass() == ImaginaryLiteralClass; 5345d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner } 5355d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner static bool classof(const ImaginaryLiteral *) { return true; } 5365d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner 5375d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner // Iterators 5385d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner virtual child_iterator child_begin(); 5395d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner virtual child_iterator child_end(); 5405d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner}; 5415d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner 542e6a82b2c29ad05534841e5f8fd033fb17b6f61e2Ted Kremenek/// StringLiteral - This represents a string literal expression, e.g. "foo" 543e6a82b2c29ad05534841e5f8fd033fb17b6f61e2Ted Kremenek/// or L"bar" (wide strings). The actual string is returned by getStrData() 544e6a82b2c29ad05534841e5f8fd033fb17b6f61e2Ted Kremenek/// is NOT null-terminated, and the length of the string is determined by 545a7ad98ff0919d6a24ea7c46634ea29bea551c1a0Chris Lattner/// calling getByteLength(). The C type for a string is always a 546c4a09c189981b4561428e4b56fd250718e2717bbChris Lattner/// ConstantArrayType. In C++, the char type is const qualified, in C it is 547c4a09c189981b4561428e4b56fd250718e2717bbChris Lattner/// not. 548690398188ea5b428f06aa13c7d4ce6eb741ad4f9Chris Lattner/// 549690398188ea5b428f06aa13c7d4ce6eb741ad4f9Chris Lattner/// Note that strings in C can be formed by concatenation of multiple string 5508bea7c0ee44c71c817de7dc2be932b73bec90c9fChris Lattner/// literal pptokens in translation phase #6. This keeps track of the locations 551690398188ea5b428f06aa13c7d4ce6eb741ad4f9Chris Lattner/// of each of these pieces. 552c4a09c189981b4561428e4b56fd250718e2717bbChris Lattner/// 553c4a09c189981b4561428e4b56fd250718e2717bbChris Lattner/// Strings in C can also be truncated and extended by assigning into arrays, 554c4a09c189981b4561428e4b56fd250718e2717bbChris Lattner/// e.g. with constructs like: 555c4a09c189981b4561428e4b56fd250718e2717bbChris Lattner/// char X[2] = "foobar"; 556c4a09c189981b4561428e4b56fd250718e2717bbChris Lattner/// In this case, getByteLength() will return 6, but the string literal will 557c4a09c189981b4561428e4b56fd250718e2717bbChris Lattner/// have type "char[2]". 5585f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass StringLiteral : public Expr { 5595f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer const char *StrData; 5605f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer unsigned ByteLength; 5615f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool IsWide; 562726e168dc09fb23f53c7b004f8e919421ee91806Chris Lattner unsigned NumConcatenated; 563726e168dc09fb23f53c7b004f8e919421ee91806Chris Lattner SourceLocation TokLocs[1]; 5642085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner 5652085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner StringLiteral(QualType Ty) : Expr(StringLiteralClass, Ty) {} 56642602bb40aefcc2751d4078ba88aacf4d965c9bdDouglas Gregor 56742602bb40aefcc2751d4078ba88aacf4d965c9bdDouglas Gregorprotected: 56842602bb40aefcc2751d4078ba88aacf4d965c9bdDouglas Gregor virtual void DoDestroy(ASTContext &C); 56942602bb40aefcc2751d4078ba88aacf4d965c9bdDouglas Gregor 5705f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 5712085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner /// This is the "fully general" constructor that allows representation of 5722085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner /// strings formed from multiple concatenated tokens. 5732085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner static StringLiteral *Create(ASTContext &C, const char *StrData, 5742085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner unsigned ByteLength, bool Wide, QualType Ty, 575a135fb43eb94524a6529768596a4533eed9aa70dAnders Carlsson const SourceLocation *Loc, unsigned NumStrs); 5762085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner 5772085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner /// Simple constructor for string literals made from one token. 5782085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner static StringLiteral *Create(ASTContext &C, const char *StrData, 5792085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner unsigned ByteLength, 5802085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner bool Wide, QualType Ty, SourceLocation Loc) { 5812085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner return Create(C, StrData, ByteLength, Wide, Ty, &Loc, 1); 5822085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner } 583a135fb43eb94524a6529768596a4533eed9aa70dAnders Carlsson 584673ecd6a4a9f7c12fb6f76f84f654dbdcdc89e76Douglas Gregor /// \brief Construct an empty string literal. 585673ecd6a4a9f7c12fb6f76f84f654dbdcdc89e76Douglas Gregor static StringLiteral *CreateEmpty(ASTContext &C, unsigned NumStrs); 586673ecd6a4a9f7c12fb6f76f84f654dbdcdc89e76Douglas Gregor 5875f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer const char *getStrData() const { return StrData; } 5885f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer unsigned getByteLength() const { return ByteLength; } 589673ecd6a4a9f7c12fb6f76f84f654dbdcdc89e76Douglas Gregor 590673ecd6a4a9f7c12fb6f76f84f654dbdcdc89e76Douglas Gregor /// \brief Sets the string data to the given string data. 591673ecd6a4a9f7c12fb6f76f84f654dbdcdc89e76Douglas Gregor void setStrData(ASTContext &C, const char *Str, unsigned Len); 592673ecd6a4a9f7c12fb6f76f84f654dbdcdc89e76Douglas Gregor 5935f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool isWide() const { return IsWide; } 594673ecd6a4a9f7c12fb6f76f84f654dbdcdc89e76Douglas Gregor void setWide(bool W) { IsWide = W; } 595673ecd6a4a9f7c12fb6f76f84f654dbdcdc89e76Douglas Gregor 5968d4141f83d9de379547cf05bd75d4c6cf894b189Steve Naroff bool containsNonAsciiOrNull() const { 59733fdb738a6c125f4c788733897021b7c1a062b0cSteve Naroff for (unsigned i = 0; i < getByteLength(); ++i) 5988d4141f83d9de379547cf05bd75d4c6cf894b189Steve Naroff if (!isascii(getStrData()[i]) || !getStrData()[i]) 59933fdb738a6c125f4c788733897021b7c1a062b0cSteve Naroff return true; 60033fdb738a6c125f4c788733897021b7c1a062b0cSteve Naroff return false; 60133fdb738a6c125f4c788733897021b7c1a062b0cSteve Naroff } 602726e168dc09fb23f53c7b004f8e919421ee91806Chris Lattner /// getNumConcatenated - Get the number of string literal tokens that were 603726e168dc09fb23f53c7b004f8e919421ee91806Chris Lattner /// concatenated in translation phase #6 to form this string literal. 604726e168dc09fb23f53c7b004f8e919421ee91806Chris Lattner unsigned getNumConcatenated() const { return NumConcatenated; } 605726e168dc09fb23f53c7b004f8e919421ee91806Chris Lattner 606726e168dc09fb23f53c7b004f8e919421ee91806Chris Lattner SourceLocation getStrTokenLoc(unsigned TokNum) const { 607726e168dc09fb23f53c7b004f8e919421ee91806Chris Lattner assert(TokNum < NumConcatenated && "Invalid tok number"); 608726e168dc09fb23f53c7b004f8e919421ee91806Chris Lattner return TokLocs[TokNum]; 609726e168dc09fb23f53c7b004f8e919421ee91806Chris Lattner } 610673ecd6a4a9f7c12fb6f76f84f654dbdcdc89e76Douglas Gregor void setStrTokenLoc(unsigned TokNum, SourceLocation L) { 611673ecd6a4a9f7c12fb6f76f84f654dbdcdc89e76Douglas Gregor assert(TokNum < NumConcatenated && "Invalid tok number"); 612673ecd6a4a9f7c12fb6f76f84f654dbdcdc89e76Douglas Gregor TokLocs[TokNum] = L; 613673ecd6a4a9f7c12fb6f76f84f654dbdcdc89e76Douglas Gregor } 614673ecd6a4a9f7c12fb6f76f84f654dbdcdc89e76Douglas Gregor 615b137299ce5bb6c36fbba651858600857fda4dd50Chris Lattner typedef const SourceLocation *tokloc_iterator; 616b137299ce5bb6c36fbba651858600857fda4dd50Chris Lattner tokloc_iterator tokloc_begin() const { return TokLocs; } 617b137299ce5bb6c36fbba651858600857fda4dd50Chris Lattner tokloc_iterator tokloc_end() const { return TokLocs+NumConcatenated; } 6185f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 6195f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer virtual SourceRange getSourceRange() const { 620726e168dc09fb23f53c7b004f8e919421ee91806Chris Lattner return SourceRange(TokLocs[0], TokLocs[NumConcatenated-1]); 6215f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 6225f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const Stmt *T) { 6235f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return T->getStmtClass() == StringLiteralClass; 6245f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 6255f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const StringLiteral *) { return true; } 62677ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek 62777ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek // Iterators 62877ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_begin(); 62977ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_end(); 6305f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 6315f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 6325f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// ParenExpr - This represents a parethesized expression, e.g. "(1)". This 6335f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// AST node is only formed if full location information is requested. 6345f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass ParenExpr : public Expr { 6355f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation L, R; 6365549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Stmt *Val; 6375f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 6385f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ParenExpr(SourceLocation l, SourceLocation r, Expr *val) 639898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor : Expr(ParenExprClass, val->getType(), 640898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor val->isTypeDependent(), val->isValueDependent()), 641898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor L(l), R(r), Val(val) {} 6425f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 643c04db4feefa2b0dbbc6876cb4eeeee108aa6791dDouglas Gregor /// \brief Construct an empty parenthesized expression. 644c04db4feefa2b0dbbc6876cb4eeeee108aa6791dDouglas Gregor explicit ParenExpr(EmptyShell Empty) 645c04db4feefa2b0dbbc6876cb4eeeee108aa6791dDouglas Gregor : Expr(ParenExprClass, Empty) { } 646c04db4feefa2b0dbbc6876cb4eeeee108aa6791dDouglas Gregor 6475549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek const Expr *getSubExpr() const { return cast<Expr>(Val); } 6485549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getSubExpr() { return cast<Expr>(Val); } 649c04db4feefa2b0dbbc6876cb4eeeee108aa6791dDouglas Gregor void setSubExpr(Expr *E) { Val = E; } 650c04db4feefa2b0dbbc6876cb4eeeee108aa6791dDouglas Gregor 651866b5c03e3b9c01cf496ad97b85a05afc917345bTed Kremenek virtual SourceRange getSourceRange() const { return SourceRange(L, R); } 6525f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 653313a81dd820c9b2c0203bdcd974c781a81e4f0cfDouglas Gregor /// \brief Get the location of the left parentheses '('. 654313a81dd820c9b2c0203bdcd974c781a81e4f0cfDouglas Gregor SourceLocation getLParen() const { return L; } 655c04db4feefa2b0dbbc6876cb4eeeee108aa6791dDouglas Gregor void setLParen(SourceLocation Loc) { L = Loc; } 656313a81dd820c9b2c0203bdcd974c781a81e4f0cfDouglas Gregor 657313a81dd820c9b2c0203bdcd974c781a81e4f0cfDouglas Gregor /// \brief Get the location of the right parentheses ')'. 658313a81dd820c9b2c0203bdcd974c781a81e4f0cfDouglas Gregor SourceLocation getRParen() const { return R; } 659c04db4feefa2b0dbbc6876cb4eeeee108aa6791dDouglas Gregor void setRParen(SourceLocation Loc) { R = Loc; } 660313a81dd820c9b2c0203bdcd974c781a81e4f0cfDouglas Gregor 6615f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const Stmt *T) { 6625f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return T->getStmtClass() == ParenExprClass; 6635f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 6645f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const ParenExpr *) { return true; } 66577ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek 66677ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek // Iterators 66777ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_begin(); 66877ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_end(); 6695f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 6705f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 6715f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 6720518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl/// UnaryOperator - This represents the unary-expression's (except sizeof and 6730518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl/// alignof), the postinc/postdec operators from postfix-expression, and various 6745f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// extensions. 675dbb36971c68ea944ac4b1fbe2d97fe7cca3b20acChris Lattner/// 676dbb36971c68ea944ac4b1fbe2d97fe7cca3b20acChris Lattner/// Notes on various nodes: 677dbb36971c68ea944ac4b1fbe2d97fe7cca3b20acChris Lattner/// 678dbb36971c68ea944ac4b1fbe2d97fe7cca3b20acChris Lattner/// Real/Imag - These return the real/imag part of a complex operand. If 679dbb36971c68ea944ac4b1fbe2d97fe7cca3b20acChris Lattner/// applied to a non-complex value, the former returns its operand and the 680dbb36971c68ea944ac4b1fbe2d97fe7cca3b20acChris Lattner/// later returns zero in the type of the operand. 681dbb36971c68ea944ac4b1fbe2d97fe7cca3b20acChris Lattner/// 68273d0d4fac161ed12926e010dcf8b448a8de6a2ecChris Lattner/// __builtin_offsetof(type, a.b[10]) is represented as a unary operator whose 68373d0d4fac161ed12926e010dcf8b448a8de6a2ecChris Lattner/// subexpression is a compound literal with the various MemberExpr and 68473d0d4fac161ed12926e010dcf8b448a8de6a2ecChris Lattner/// ArraySubscriptExpr's applied to it. 68573d0d4fac161ed12926e010dcf8b448a8de6a2ecChris Lattner/// 6865f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass UnaryOperator : public Expr { 6875f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 68813d130c3d225cdb5b1e6d9e86cea12eea718c707Chris Lattner // Note that additions to this should also update the StmtVisitor class. 6895f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer enum Opcode { 6905f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer PostInc, PostDec, // [C99 6.5.2.4] Postfix increment and decrement operators 6915f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer PreInc, PreDec, // [C99 6.5.3.1] Prefix increment and decrement operators. 6925f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer AddrOf, Deref, // [C99 6.5.3.2] Address and indirection operators. 6935f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Plus, Minus, // [C99 6.5.3.3] Unary arithmetic operators. 6945f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Not, LNot, // [C99 6.5.3.3] Unary arithmetic operators. 6955f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Real, Imag, // "__real expr"/"__imag expr" Extension. 69673d0d4fac161ed12926e010dcf8b448a8de6a2ecChris Lattner Extension, // __extension__ marker. 69773d0d4fac161ed12926e010dcf8b448a8de6a2ecChris Lattner OffsetOf // __builtin_offsetof 6985f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer }; 6995f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerprivate: 7005549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Stmt *Val; 7015f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Opcode Opc; 7025f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation Loc; 7035f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 7045f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 7055f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer UnaryOperator(Expr *input, Opcode opc, QualType type, SourceLocation l) 7069103bb27f4eefa0e0d7935387750e3aca24abc49Douglas Gregor : Expr(UnaryOperatorClass, type, 7079103bb27f4eefa0e0d7935387750e3aca24abc49Douglas Gregor input->isTypeDependent() && opc != OffsetOf, 7089103bb27f4eefa0e0d7935387750e3aca24abc49Douglas Gregor input->isValueDependent()), 7099103bb27f4eefa0e0d7935387750e3aca24abc49Douglas Gregor Val(input), Opc(opc), Loc(l) {} 7105f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 7110b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor /// \brief Build an empty unary operator. 7120b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor explicit UnaryOperator(EmptyShell Empty) 7130b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor : Expr(UnaryOperatorClass, Empty), Opc(AddrOf) { } 7140b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor 7155f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Opcode getOpcode() const { return Opc; } 7160b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor void setOpcode(Opcode O) { Opc = O; } 7170b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor 7185549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getSubExpr() const { return cast<Expr>(Val); } 7190b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor void setSubExpr(Expr *E) { Val = E; } 7200b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor 7215f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// getOperatorLoc - Return the location of the operator. 7225f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation getOperatorLoc() const { return Loc; } 7230b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor void setOperatorLoc(SourceLocation L) { Loc = L; } 7240b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor 7255f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// isPostfix - Return true if this is a postfix operation, like x++. 7262085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner static bool isPostfix(Opcode Op) { 7272085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner return Op == PostInc || Op == PostDec; 7282085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner } 7295f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 7305a56ac30d04e8f0431a08980885662a47a6308aaTed Kremenek /// isPostfix - Return true if this is a prefix operation, like --x. 7312085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner static bool isPrefix(Opcode Op) { 7322085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner return Op == PreInc || Op == PreDec; 7332085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner } 7345a56ac30d04e8f0431a08980885662a47a6308aaTed Kremenek 7355a56ac30d04e8f0431a08980885662a47a6308aaTed Kremenek bool isPrefix() const { return isPrefix(Opc); } 7365f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool isPostfix() const { return isPostfix(Opc); } 7375d826b82936beb2c32dd02460332ba8035192c65Ted Kremenek bool isIncrementOp() const {return Opc==PreInc || Opc==PostInc; } 7385f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool isIncrementDecrementOp() const { return Opc>=PostInc && Opc<=PreDec; } 7395a1deb8d9c0722beae28d693fa137bbb942bd11fAnders Carlsson bool isOffsetOfOp() const { return Opc == OffsetOf; } 7405f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool isArithmeticOp(Opcode Op) { return Op >= Plus && Op <= LNot; } 741a4e70568ae8902d48aad215c16b0fc8b40308106Ted Kremenek bool isArithmeticOp() const { return isArithmeticOp(Opc); } 7425f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 7435f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// getOpcodeStr - Turn an Opcode enum value into the punctuation char it 7445f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// corresponds to, e.g. "sizeof" or "[pre]++" 7455f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static const char *getOpcodeStr(Opcode Op); 7465f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 747bc736fceca6f0bca31d16003a7587857190408fbDouglas Gregor /// \brief Retrieve the unary opcode that corresponds to the given 748bc736fceca6f0bca31d16003a7587857190408fbDouglas Gregor /// overloaded operator. 749bc736fceca6f0bca31d16003a7587857190408fbDouglas Gregor static Opcode getOverloadedOpcode(OverloadedOperatorKind OO, bool Postfix); 750bc736fceca6f0bca31d16003a7587857190408fbDouglas Gregor 751bc736fceca6f0bca31d16003a7587857190408fbDouglas Gregor /// \brief Retrieve the overloaded operator kind that corresponds to 752bc736fceca6f0bca31d16003a7587857190408fbDouglas Gregor /// the given unary opcode. 753bc736fceca6f0bca31d16003a7587857190408fbDouglas Gregor static OverloadedOperatorKind getOverloadedOperator(Opcode Opc); 754bc736fceca6f0bca31d16003a7587857190408fbDouglas Gregor 7555f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer virtual SourceRange getSourceRange() const { 7565f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (isPostfix()) 7575f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return SourceRange(Val->getLocStart(), Loc); 7585f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer else 7595f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return SourceRange(Loc, Val->getLocEnd()); 7605f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 7615f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer virtual SourceLocation getExprLoc() const { return Loc; } 7625f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 7635f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const Stmt *T) { 7645f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return T->getStmtClass() == UnaryOperatorClass; 7655f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 7665f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const UnaryOperator *) { return true; } 76777ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek 76877ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek // Iterators 76977ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_begin(); 77077ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_end(); 7715f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 7725f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 7730518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl/// SizeOfAlignOfExpr - [C99 6.5.3.4] - This is for sizeof/alignof, both of 7740518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl/// types and expressions. 7750518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redlclass SizeOfAlignOfExpr : public Expr { 7760518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl bool isSizeof : 1; // true if sizeof, false if alignof. 7770518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl bool isType : 1; // true if operand is a type, false if an expression 778d457589fc69dc7a9c80cd74d317c0b81a35a27c9Sebastian Redl union { 779d457589fc69dc7a9c80cd74d317c0b81a35a27c9Sebastian Redl void *Ty; 780d457589fc69dc7a9c80cd74d317c0b81a35a27c9Sebastian Redl Stmt *Ex; 781d457589fc69dc7a9c80cd74d317c0b81a35a27c9Sebastian Redl } Argument; 7825f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation OpLoc, RParenLoc; 78342602bb40aefcc2751d4078ba88aacf4d965c9bdDouglas Gregor 78442602bb40aefcc2751d4078ba88aacf4d965c9bdDouglas Gregorprotected: 78542602bb40aefcc2751d4078ba88aacf4d965c9bdDouglas Gregor virtual void DoDestroy(ASTContext& C); 78642602bb40aefcc2751d4078ba88aacf4d965c9bdDouglas Gregor 7875f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 788ba49817c5b9f502602672861cf369fd0e53966e8Douglas Gregor SizeOfAlignOfExpr(bool issizeof, QualType T, 7890518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl QualType resultType, SourceLocation op, 7900518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl SourceLocation rp) : 7912850784bda09416fc7e9d57f5baa36c9351c757cSebastian Redl Expr(SizeOfAlignOfExprClass, resultType, 792ba49817c5b9f502602672861cf369fd0e53966e8Douglas Gregor false, // Never type-dependent (C++ [temp.dep.expr]p3). 7932850784bda09416fc7e9d57f5baa36c9351c757cSebastian Redl // Value-dependent if the argument is type-dependent. 794ba49817c5b9f502602672861cf369fd0e53966e8Douglas Gregor T->isDependentType()), 795ba49817c5b9f502602672861cf369fd0e53966e8Douglas Gregor isSizeof(issizeof), isType(true), OpLoc(op), RParenLoc(rp) { 796ba49817c5b9f502602672861cf369fd0e53966e8Douglas Gregor Argument.Ty = T.getAsOpaquePtr(); 797ba49817c5b9f502602672861cf369fd0e53966e8Douglas Gregor } 798ba49817c5b9f502602672861cf369fd0e53966e8Douglas Gregor 799ba49817c5b9f502602672861cf369fd0e53966e8Douglas Gregor SizeOfAlignOfExpr(bool issizeof, Expr *E, 800ba49817c5b9f502602672861cf369fd0e53966e8Douglas Gregor QualType resultType, SourceLocation op, 801ba49817c5b9f502602672861cf369fd0e53966e8Douglas Gregor SourceLocation rp) : 802ba49817c5b9f502602672861cf369fd0e53966e8Douglas Gregor Expr(SizeOfAlignOfExprClass, resultType, 803ba49817c5b9f502602672861cf369fd0e53966e8Douglas Gregor false, // Never type-dependent (C++ [temp.dep.expr]p3). 804ba49817c5b9f502602672861cf369fd0e53966e8Douglas Gregor // Value-dependent if the argument is type-dependent. 805ba49817c5b9f502602672861cf369fd0e53966e8Douglas Gregor E->isTypeDependent()), 806ba49817c5b9f502602672861cf369fd0e53966e8Douglas Gregor isSizeof(issizeof), isType(false), OpLoc(op), RParenLoc(rp) { 807ba49817c5b9f502602672861cf369fd0e53966e8Douglas Gregor Argument.Ex = E; 808d457589fc69dc7a9c80cd74d317c0b81a35a27c9Sebastian Redl } 8090518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl 8100b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor /// \brief Construct an empty sizeof/alignof expression. 8110b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor explicit SizeOfAlignOfExpr(EmptyShell Empty) 8120b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor : Expr(SizeOfAlignOfExprClass, Empty) { } 8130b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor 8145f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool isSizeOf() const { return isSizeof; } 8150b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor void setSizeof(bool S) { isSizeof = S; } 8160b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor 8170518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl bool isArgumentType() const { return isType; } 8180518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl QualType getArgumentType() const { 8190518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl assert(isArgumentType() && "calling getArgumentType() when arg is expr"); 820d457589fc69dc7a9c80cd74d317c0b81a35a27c9Sebastian Redl return QualType::getFromOpaquePtr(Argument.Ty); 8210518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl } 822caae7b099a0324b7c15dc89a9b70969d5d7ce996Chris Lattner Expr *getArgumentExpr() { 8230518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl assert(!isArgumentType() && "calling getArgumentExpr() when arg is type"); 824d457589fc69dc7a9c80cd74d317c0b81a35a27c9Sebastian Redl return static_cast<Expr*>(Argument.Ex); 8250518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl } 826caae7b099a0324b7c15dc89a9b70969d5d7ce996Chris Lattner const Expr *getArgumentExpr() const { 827caae7b099a0324b7c15dc89a9b70969d5d7ce996Chris Lattner return const_cast<SizeOfAlignOfExpr*>(this)->getArgumentExpr(); 828caae7b099a0324b7c15dc89a9b70969d5d7ce996Chris Lattner } 8290b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor 8300b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor void setArgument(Expr *E) { Argument.Ex = E; isType = false; } 8310b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor void setArgument(QualType T) { 8320b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor Argument.Ty = T.getAsOpaquePtr(); 8330b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor isType = true; 8340b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor } 8350b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor 8360518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl /// Gets the argument type, or the type of the argument expression, whichever 8370518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl /// is appropriate. 8380518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl QualType getTypeOfArgument() const { 8390518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl return isArgumentType() ? getArgumentType() : getArgumentExpr()->getType(); 8400518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl } 8410518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl 84276e773a443be9f006610f46529e07d4c8d857680Chris Lattner SourceLocation getOperatorLoc() const { return OpLoc; } 8430b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor void setOperatorLoc(SourceLocation L) { OpLoc = L; } 8440b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor 8450b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor SourceLocation getRParenLoc() const { return RParenLoc; } 8460b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor void setRParenLoc(SourceLocation L) { RParenLoc = L; } 847866b5c03e3b9c01cf496ad97b85a05afc917345bTed Kremenek 848866b5c03e3b9c01cf496ad97b85a05afc917345bTed Kremenek virtual SourceRange getSourceRange() const { 849866b5c03e3b9c01cf496ad97b85a05afc917345bTed Kremenek return SourceRange(OpLoc, RParenLoc); 850866b5c03e3b9c01cf496ad97b85a05afc917345bTed Kremenek } 8515f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 8525f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const Stmt *T) { 8530518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl return T->getStmtClass() == SizeOfAlignOfExprClass; 8545f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 8550518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl static bool classof(const SizeOfAlignOfExpr *) { return true; } 85677ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek 85777ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek // Iterators 85877ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_begin(); 85977ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_end(); 8605f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 8615f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 8625f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer//===----------------------------------------------------------------------===// 8635f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// Postfix Operators. 8645f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer//===----------------------------------------------------------------------===// 8655f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 8665f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// ArraySubscriptExpr - [C99 6.5.2.1] Array Subscripting. 8675f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass ArraySubscriptExpr : public Expr { 86877ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek enum { LHS, RHS, END_EXPR=2 }; 8695549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Stmt* SubExprs[END_EXPR]; 8705f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation RBracketLoc; 8715f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 8722324512285caac0332bbbc6e4cab6245d2a370a1Ted Kremenek ArraySubscriptExpr(Expr *lhs, Expr *rhs, QualType t, 87373d0d4fac161ed12926e010dcf8b448a8de6a2ecChris Lattner SourceLocation rbracketloc) 8742850784bda09416fc7e9d57f5baa36c9351c757cSebastian Redl : Expr(ArraySubscriptExprClass, t, 8752850784bda09416fc7e9d57f5baa36c9351c757cSebastian Redl lhs->isTypeDependent() || rhs->isTypeDependent(), 8762850784bda09416fc7e9d57f5baa36c9351c757cSebastian Redl lhs->isValueDependent() || rhs->isValueDependent()), 8772850784bda09416fc7e9d57f5baa36c9351c757cSebastian Redl RBracketLoc(rbracketloc) { 87873d0d4fac161ed12926e010dcf8b448a8de6a2ecChris Lattner SubExprs[LHS] = lhs; 87973d0d4fac161ed12926e010dcf8b448a8de6a2ecChris Lattner SubExprs[RHS] = rhs; 88073d0d4fac161ed12926e010dcf8b448a8de6a2ecChris Lattner } 8815f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 882cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor /// \brief Create an empty array subscript expression. 883cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor explicit ArraySubscriptExpr(EmptyShell Shell) 884cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor : Expr(ArraySubscriptExprClass, Shell) { } 885cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor 8862324512285caac0332bbbc6e4cab6245d2a370a1Ted Kremenek /// An array access can be written A[4] or 4[A] (both are equivalent). 8872324512285caac0332bbbc6e4cab6245d2a370a1Ted Kremenek /// - getBase() and getIdx() always present the normalized view: A[4]. 8882324512285caac0332bbbc6e4cab6245d2a370a1Ted Kremenek /// In this case getBase() returns "A" and getIdx() returns "4". 8892324512285caac0332bbbc6e4cab6245d2a370a1Ted Kremenek /// - getLHS() and getRHS() present the syntactic view. e.g. for 8902324512285caac0332bbbc6e4cab6245d2a370a1Ted Kremenek /// 4[A] getLHS() returns "4". 89133fd5c124aac15bab7cad95e4e0e7761356d2c06Christopher Lamb /// Note: Because vector element access is also written A[4] we must 89233fd5c124aac15bab7cad95e4e0e7761356d2c06Christopher Lamb /// predicate the format conversion in getBase and getIdx only on the 89333fd5c124aac15bab7cad95e4e0e7761356d2c06Christopher Lamb /// the type of the RHS, as it is possible for the LHS to be a vector of 89433fd5c124aac15bab7cad95e4e0e7761356d2c06Christopher Lamb /// integer type 8955549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getLHS() { return cast<Expr>(SubExprs[LHS]); } 8965549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek const Expr *getLHS() const { return cast<Expr>(SubExprs[LHS]); } 897cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor void setLHS(Expr *E) { SubExprs[LHS] = E; } 898cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor 8995549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getRHS() { return cast<Expr>(SubExprs[RHS]); } 9005549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek const Expr *getRHS() const { return cast<Expr>(SubExprs[RHS]); } 901cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor void setRHS(Expr *E) { SubExprs[RHS] = E; } 9022324512285caac0332bbbc6e4cab6245d2a370a1Ted Kremenek 90377ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek Expr *getBase() { 9045549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek return cast<Expr>(getRHS()->getType()->isIntegerType() ? getLHS():getRHS()); 90577ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek } 90677ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek 9072324512285caac0332bbbc6e4cab6245d2a370a1Ted Kremenek const Expr *getBase() const { 9085549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek return cast<Expr>(getRHS()->getType()->isIntegerType() ? getLHS():getRHS()); 9092324512285caac0332bbbc6e4cab6245d2a370a1Ted Kremenek } 9102324512285caac0332bbbc6e4cab6245d2a370a1Ted Kremenek 91177ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek Expr *getIdx() { 9125549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek return cast<Expr>(getRHS()->getType()->isIntegerType() ? getRHS():getLHS()); 9132324512285caac0332bbbc6e4cab6245d2a370a1Ted Kremenek } 9142324512285caac0332bbbc6e4cab6245d2a370a1Ted Kremenek 91577ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek const Expr *getIdx() const { 9165549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek return cast<Expr>(getRHS()->getType()->isIntegerType() ? getRHS():getLHS()); 91777ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek } 9185f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 919866b5c03e3b9c01cf496ad97b85a05afc917345bTed Kremenek virtual SourceRange getSourceRange() const { 92077ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek return SourceRange(getLHS()->getLocStart(), RBracketLoc); 9215f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 922866b5c03e3b9c01cf496ad97b85a05afc917345bTed Kremenek 923026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner SourceLocation getRBracketLoc() const { return RBracketLoc; } 924cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor void setRBracketLoc(SourceLocation L) { RBracketLoc = L; } 925cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor 9265cd9d6daf3acd4cc87fecebd81d9495b9e4ba9cdChris Lattner virtual SourceLocation getExprLoc() const { return getBase()->getExprLoc(); } 9275f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 9285f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const Stmt *T) { 9295f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return T->getStmtClass() == ArraySubscriptExprClass; 9305f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 9315f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const ArraySubscriptExpr *) { return true; } 93277ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek 93377ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek // Iterators 93477ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_begin(); 93577ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_end(); 9365f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 9375f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 9385f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 939b4609806e9232593ece09ce08b630836e825865cDouglas Gregor/// CallExpr - Represents a function call (C99 6.5.2.2, C++ [expr.call]). 940b4609806e9232593ece09ce08b630836e825865cDouglas Gregor/// CallExpr itself represents a normal function call, e.g., "f(x, 2)", 941b4609806e9232593ece09ce08b630836e825865cDouglas Gregor/// while its subclasses may represent alternative syntax that (semantically) 942b4609806e9232593ece09ce08b630836e825865cDouglas Gregor/// results in a function call. For example, CXXOperatorCallExpr is 943b4609806e9232593ece09ce08b630836e825865cDouglas Gregor/// a subclass for overloaded operator calls that use operator syntax, e.g., 944b4609806e9232593ece09ce08b630836e825865cDouglas Gregor/// "str1 + str2" to resolve to a function call. 9455f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass CallExpr : public Expr { 94677ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek enum { FN=0, ARGS_START=1 }; 9475549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Stmt **SubExprs; 9485f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer unsigned NumArgs; 9495f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation RParenLoc; 950d7fe4ea296646f049e4ff4cc37aa92ff4014a6b3Ted Kremenek 951b4609806e9232593ece09ce08b630836e825865cDouglas Gregorprotected: 952b4609806e9232593ece09ce08b630836e825865cDouglas Gregor // This version of the constructor is for derived classes. 953668bf91d31265b6ea8c3eb854ba450857701f269Ted Kremenek CallExpr(ASTContext& C, StmtClass SC, Expr *fn, Expr **args, unsigned numargs, 954668bf91d31265b6ea8c3eb854ba450857701f269Ted Kremenek QualType t, SourceLocation rparenloc); 95542602bb40aefcc2751d4078ba88aacf4d965c9bdDouglas Gregor 95642602bb40aefcc2751d4078ba88aacf4d965c9bdDouglas Gregor virtual void DoDestroy(ASTContext& C); 957d7fe4ea296646f049e4ff4cc37aa92ff4014a6b3Ted Kremenek 9585f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 959668bf91d31265b6ea8c3eb854ba450857701f269Ted Kremenek CallExpr(ASTContext& C, Expr *fn, Expr **args, unsigned numargs, QualType t, 9605f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation rparenloc); 961668bf91d31265b6ea8c3eb854ba450857701f269Ted Kremenek 9621f0d0133b0e8d1f01f63951ee04927796b34740dDouglas Gregor /// \brief Build an empty call expression. 963ba0a9006dbc4814e1e35f82812cb5a1dad65e8b8Argyrios Kyrtzidis CallExpr(ASTContext &C, StmtClass SC, EmptyShell Empty); 9641f0d0133b0e8d1f01f63951ee04927796b34740dDouglas Gregor 965668bf91d31265b6ea8c3eb854ba450857701f269Ted Kremenek ~CallExpr() {} 966668bf91d31265b6ea8c3eb854ba450857701f269Ted Kremenek 9675549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek const Expr *getCallee() const { return cast<Expr>(SubExprs[FN]); } 9685549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getCallee() { return cast<Expr>(SubExprs[FN]); } 96918b2515e1bf8c86a4900792692e42fe1296be28dChris Lattner void setCallee(Expr *F) { SubExprs[FN] = F; } 970a00425414e8c209cabc25d1826b200aeb94259afZhongxing Xu 971a00425414e8c209cabc25d1826b200aeb94259afZhongxing Xu /// \brief If the callee is a FunctionDecl, return it. Otherwise return 0. 972a00425414e8c209cabc25d1826b200aeb94259afZhongxing Xu FunctionDecl *getDirectCallee(); 973a00425414e8c209cabc25d1826b200aeb94259afZhongxing Xu 9745f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// getNumArgs - Return the number of actual arguments to this call. 9755f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// 9765f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer unsigned getNumArgs() const { return NumArgs; } 9775f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 9785f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// getArg - Return the specified argument. 9795f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Expr *getArg(unsigned Arg) { 9805f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer assert(Arg < NumArgs && "Arg access out of range!"); 9815549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek return cast<Expr>(SubExprs[Arg+ARGS_START]); 9825f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 9835f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer const Expr *getArg(unsigned Arg) const { 9845f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer assert(Arg < NumArgs && "Arg access out of range!"); 9855549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek return cast<Expr>(SubExprs[Arg+ARGS_START]); 9865f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 987668bf91d31265b6ea8c3eb854ba450857701f269Ted Kremenek 988934f276cc5b45e19cd12ebb2d04fd7972a23865cSteve Naroff /// setArg - Set the specified argument. 989934f276cc5b45e19cd12ebb2d04fd7972a23865cSteve Naroff void setArg(unsigned Arg, Expr *ArgExpr) { 990934f276cc5b45e19cd12ebb2d04fd7972a23865cSteve Naroff assert(Arg < NumArgs && "Arg access out of range!"); 991934f276cc5b45e19cd12ebb2d04fd7972a23865cSteve Naroff SubExprs[Arg+ARGS_START] = ArgExpr; 992934f276cc5b45e19cd12ebb2d04fd7972a23865cSteve Naroff } 993d18b3299debb7b0dbd9d34d9369189dc98c87f53Chris Lattner 994d18b3299debb7b0dbd9d34d9369189dc98c87f53Chris Lattner /// setNumArgs - This changes the number of arguments present in this call. 995d18b3299debb7b0dbd9d34d9369189dc98c87f53Chris Lattner /// Any orphaned expressions are deleted by this, and any new operands are set 996d18b3299debb7b0dbd9d34d9369189dc98c87f53Chris Lattner /// to null. 9978189cde56b4f6f938cd65f53c932fe1860d0204cTed Kremenek void setNumArgs(ASTContext& C, unsigned NumArgs); 998d18b3299debb7b0dbd9d34d9369189dc98c87f53Chris Lattner 9995549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek typedef ExprIterator arg_iterator; 10005549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek typedef ConstExprIterator const_arg_iterator; 10015549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek 1002d18b3299debb7b0dbd9d34d9369189dc98c87f53Chris Lattner arg_iterator arg_begin() { return SubExprs+ARGS_START; } 1003d18b3299debb7b0dbd9d34d9369189dc98c87f53Chris Lattner arg_iterator arg_end() { return SubExprs+ARGS_START+getNumArgs(); } 10045549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek const_arg_iterator arg_begin() const { return SubExprs+ARGS_START; } 10055549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek const_arg_iterator arg_end() const { return SubExprs+ARGS_START+getNumArgs();} 1006d18b3299debb7b0dbd9d34d9369189dc98c87f53Chris Lattner 10075f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// getNumCommas - Return the number of commas that must have been present in 10085f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// this function call. 10095f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer unsigned getNumCommas() const { return NumArgs ? NumArgs - 1 : 0; } 10105f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1011cb888967400a03504c88acedd5248d6778a82f46Chris Lattner /// isBuiltinCall - If this is a call to a builtin, return the builtin ID. If 1012cb888967400a03504c88acedd5248d6778a82f46Chris Lattner /// not, return 0. 10133c385e5f8d9008fff18597ca302be19fa86e51f6Douglas Gregor unsigned isBuiltinCall(ASTContext &Context) const; 1014cb888967400a03504c88acedd5248d6778a82f46Chris Lattner 10156dde78f744382a5627a04f984a97049e0c4b5e73Anders Carlsson /// getCallReturnType - Get the return type of the call expr. This is not 10166dde78f744382a5627a04f984a97049e0c4b5e73Anders Carlsson /// always the type of the expr itself, if the return type is a reference 10176dde78f744382a5627a04f984a97049e0c4b5e73Anders Carlsson /// type. 10186dde78f744382a5627a04f984a97049e0c4b5e73Anders Carlsson QualType getCallReturnType() const; 10196dde78f744382a5627a04f984a97049e0c4b5e73Anders Carlsson 1020d18b3299debb7b0dbd9d34d9369189dc98c87f53Chris Lattner SourceLocation getRParenLoc() const { return RParenLoc; } 10211f0d0133b0e8d1f01f63951ee04927796b34740dDouglas Gregor void setRParenLoc(SourceLocation L) { RParenLoc = L; } 1022866b5c03e3b9c01cf496ad97b85a05afc917345bTed Kremenek 1023866b5c03e3b9c01cf496ad97b85a05afc917345bTed Kremenek virtual SourceRange getSourceRange() const { 102477ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek return SourceRange(getCallee()->getLocStart(), RParenLoc); 10255f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 10265f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 10275f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const Stmt *T) { 1028b4609806e9232593ece09ce08b630836e825865cDouglas Gregor return T->getStmtClass() == CallExprClass || 102988a3514f36de96b19cdf50141c640df1a5f13f6cDouglas Gregor T->getStmtClass() == CXXOperatorCallExprClass || 103088a3514f36de96b19cdf50141c640df1a5f13f6cDouglas Gregor T->getStmtClass() == CXXMemberCallExprClass; 10315f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 10325f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const CallExpr *) { return true; } 103388a3514f36de96b19cdf50141c640df1a5f13f6cDouglas Gregor static bool classof(const CXXOperatorCallExpr *) { return true; } 103488a3514f36de96b19cdf50141c640df1a5f13f6cDouglas Gregor static bool classof(const CXXMemberCallExpr *) { return true; } 103588a3514f36de96b19cdf50141c640df1a5f13f6cDouglas Gregor 103677ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek // Iterators 103777ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_begin(); 103877ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_end(); 10395f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 10405f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1041ddca44e86281bb7dcf5fdcaf1563434c524e3861Chris Lattner/// MemberExpr - [C99 6.5.2.3] Structure and Union Members. X->F and X.F. 10425f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 10435f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass MemberExpr : public Expr { 1044ddca44e86281bb7dcf5fdcaf1563434c524e3861Chris Lattner /// Base - the expression for the base pointer or structure references. In 1045ddca44e86281bb7dcf5fdcaf1563434c524e3861Chris Lattner /// X.F, this is "X". 10465549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Stmt *Base; 1047ddca44e86281bb7dcf5fdcaf1563434c524e3861Chris Lattner 1048ddca44e86281bb7dcf5fdcaf1563434c524e3861Chris Lattner /// MemberDecl - This is the decl being referenced by the field/member name. 1049ddca44e86281bb7dcf5fdcaf1563434c524e3861Chris Lattner /// In X.F, this is the decl referenced by F. 105086f194083504938df72135b5b66bf0c5cafd9498Douglas Gregor NamedDecl *MemberDecl; 1051ddca44e86281bb7dcf5fdcaf1563434c524e3861Chris Lattner 1052ddca44e86281bb7dcf5fdcaf1563434c524e3861Chris Lattner /// MemberLoc - This is the location of the member name. 10535f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation MemberLoc; 1054ddca44e86281bb7dcf5fdcaf1563434c524e3861Chris Lattner 1055ddca44e86281bb7dcf5fdcaf1563434c524e3861Chris Lattner /// IsArrow - True if this is "X->F", false if this is "X.F". 1056ddca44e86281bb7dcf5fdcaf1563434c524e3861Chris Lattner bool IsArrow; 10575f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 105886f194083504938df72135b5b66bf0c5cafd9498Douglas Gregor MemberExpr(Expr *base, bool isarrow, NamedDecl *memberdecl, SourceLocation l, 1059510190777c4bd53e960eea4665b204778fec1b64Eli Friedman QualType ty) 1060ffce2df6ae280d354d51371282a579df1eb86876Anders Carlsson : Expr(MemberExprClass, ty, 1061ffce2df6ae280d354d51371282a579df1eb86876Anders Carlsson base->isTypeDependent(), base->isValueDependent()), 10625f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Base(base), MemberDecl(memberdecl), MemberLoc(l), IsArrow(isarrow) {} 1063510190777c4bd53e960eea4665b204778fec1b64Eli Friedman 10641f0d0133b0e8d1f01f63951ee04927796b34740dDouglas Gregor /// \brief Build an empty member reference expression. 10651f0d0133b0e8d1f01f63951ee04927796b34740dDouglas Gregor explicit MemberExpr(EmptyShell Empty) : Expr(MemberExprClass, Empty) { } 10661f0d0133b0e8d1f01f63951ee04927796b34740dDouglas Gregor 106788a3514f36de96b19cdf50141c640df1a5f13f6cDouglas Gregor void setBase(Expr *E) { Base = E; } 10685549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getBase() const { return cast<Expr>(Base); } 106957e8b05fe9ba03d410db9c161e032cb79c9ab5baDouglas Gregor 107057e8b05fe9ba03d410db9c161e032cb79c9ab5baDouglas Gregor /// \brief Retrieve the member declaration to which this expression refers. 107157e8b05fe9ba03d410db9c161e032cb79c9ab5baDouglas Gregor /// 107257e8b05fe9ba03d410db9c161e032cb79c9ab5baDouglas Gregor /// The returned declaration will either be a FieldDecl or (in C++) 107357e8b05fe9ba03d410db9c161e032cb79c9ab5baDouglas Gregor /// a CXXMethodDecl. 107486f194083504938df72135b5b66bf0c5cafd9498Douglas Gregor NamedDecl *getMemberDecl() const { return MemberDecl; } 107588a3514f36de96b19cdf50141c640df1a5f13f6cDouglas Gregor void setMemberDecl(NamedDecl *D) { MemberDecl = D; } 10761f0d0133b0e8d1f01f63951ee04927796b34740dDouglas Gregor 10775f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool isArrow() const { return IsArrow; } 10781f0d0133b0e8d1f01f63951ee04927796b34740dDouglas Gregor void setArrow(bool A) { IsArrow = A; } 10791f0d0133b0e8d1f01f63951ee04927796b34740dDouglas Gregor 1080ddca44e86281bb7dcf5fdcaf1563434c524e3861Chris Lattner /// getMemberLoc - Return the location of the "member", in X->F, it is the 1081ddca44e86281bb7dcf5fdcaf1563434c524e3861Chris Lattner /// location of 'F'. 1082026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner SourceLocation getMemberLoc() const { return MemberLoc; } 10831f0d0133b0e8d1f01f63951ee04927796b34740dDouglas Gregor void setMemberLoc(SourceLocation L) { MemberLoc = L; } 10845f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 10855f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer virtual SourceRange getSourceRange() const { 108672527137c521ad9330ecb81ccd841159719dc8cdEli Friedman // If we have an implicit base (like a C++ implicit this), 108772527137c521ad9330ecb81ccd841159719dc8cdEli Friedman // make sure not to return its location 108872527137c521ad9330ecb81ccd841159719dc8cdEli Friedman SourceLocation BaseLoc = getBase()->getLocStart(); 108972527137c521ad9330ecb81ccd841159719dc8cdEli Friedman if (BaseLoc.isInvalid()) 109072527137c521ad9330ecb81ccd841159719dc8cdEli Friedman return SourceRange(MemberLoc, MemberLoc); 109172527137c521ad9330ecb81ccd841159719dc8cdEli Friedman return SourceRange(BaseLoc, MemberLoc); 10925f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 1093866b5c03e3b9c01cf496ad97b85a05afc917345bTed Kremenek 10945f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer virtual SourceLocation getExprLoc() const { return MemberLoc; } 10955f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 10965f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const Stmt *T) { 10975f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return T->getStmtClass() == MemberExprClass; 10985f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 10995f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const MemberExpr *) { return true; } 11001237c673c07f9d827129ba02720108816abde562Ted Kremenek 11011237c673c07f9d827129ba02720108816abde562Ted Kremenek // Iterators 11021237c673c07f9d827129ba02720108816abde562Ted Kremenek virtual child_iterator child_begin(); 11031237c673c07f9d827129ba02720108816abde562Ted Kremenek virtual child_iterator child_end(); 11045f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 11055f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1106aff1edd84aaafef15b737acd8ec61abcca6d6bc3Steve Naroff/// CompoundLiteralExpr - [C99 6.5.2.5] 1107aff1edd84aaafef15b737acd8ec61abcca6d6bc3Steve Naroff/// 1108aff1edd84aaafef15b737acd8ec61abcca6d6bc3Steve Naroffclass CompoundLiteralExpr : public Expr { 11090fc53dfc7a33f68e71ef245389c4e7cd34a62a39Chris Lattner /// LParenLoc - If non-null, this is the location of the left paren in a 11100fc53dfc7a33f68e71ef245389c4e7cd34a62a39Chris Lattner /// compound literal like "(int){4}". This can be null if this is a 11110fc53dfc7a33f68e71ef245389c4e7cd34a62a39Chris Lattner /// synthesized compound expression. 11120fc53dfc7a33f68e71ef245389c4e7cd34a62a39Chris Lattner SourceLocation LParenLoc; 11135549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Stmt *Init; 1114e9b12198c4cc7f5687960100351b4af006c14469Steve Naroff bool FileScope; 1115aff1edd84aaafef15b737acd8ec61abcca6d6bc3Steve Naroffpublic: 1116a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner CompoundLiteralExpr(SourceLocation lparenloc, QualType ty, Expr *init, 1117a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner bool fileScope) 1118a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner : Expr(CompoundLiteralExprClass, ty), LParenLoc(lparenloc), Init(init), 1119a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner FileScope(fileScope) {} 1120aff1edd84aaafef15b737acd8ec61abcca6d6bc3Steve Naroff 1121ba6d7e7fa5f79959d3eef39adb5620d845ba5198Douglas Gregor /// \brief Construct an empty compound literal. 1122ba6d7e7fa5f79959d3eef39adb5620d845ba5198Douglas Gregor explicit CompoundLiteralExpr(EmptyShell Empty) 1123ba6d7e7fa5f79959d3eef39adb5620d845ba5198Douglas Gregor : Expr(CompoundLiteralExprClass, Empty) { } 1124ba6d7e7fa5f79959d3eef39adb5620d845ba5198Douglas Gregor 11255549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek const Expr *getInitializer() const { return cast<Expr>(Init); } 11265549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getInitializer() { return cast<Expr>(Init); } 1127ba6d7e7fa5f79959d3eef39adb5620d845ba5198Douglas Gregor void setInitializer(Expr *E) { Init = E; } 1128e9b12198c4cc7f5687960100351b4af006c14469Steve Naroff 1129e9b12198c4cc7f5687960100351b4af006c14469Steve Naroff bool isFileScope() const { return FileScope; } 1130ba6d7e7fa5f79959d3eef39adb5620d845ba5198Douglas Gregor void setFileScope(bool FS) { FileScope = FS; } 1131ba6d7e7fa5f79959d3eef39adb5620d845ba5198Douglas Gregor 11320fc53dfc7a33f68e71ef245389c4e7cd34a62a39Chris Lattner SourceLocation getLParenLoc() const { return LParenLoc; } 1133ba6d7e7fa5f79959d3eef39adb5620d845ba5198Douglas Gregor void setLParenLoc(SourceLocation L) { LParenLoc = L; } 1134ba6d7e7fa5f79959d3eef39adb5620d845ba5198Douglas Gregor 113573d0d4fac161ed12926e010dcf8b448a8de6a2ecChris Lattner virtual SourceRange getSourceRange() const { 11360fc53dfc7a33f68e71ef245389c4e7cd34a62a39Chris Lattner // FIXME: Init should never be null. 11370fc53dfc7a33f68e71ef245389c4e7cd34a62a39Chris Lattner if (!Init) 11380fc53dfc7a33f68e71ef245389c4e7cd34a62a39Chris Lattner return SourceRange(); 11390fc53dfc7a33f68e71ef245389c4e7cd34a62a39Chris Lattner if (LParenLoc.isInvalid()) 114073d0d4fac161ed12926e010dcf8b448a8de6a2ecChris Lattner return Init->getSourceRange(); 11410fc53dfc7a33f68e71ef245389c4e7cd34a62a39Chris Lattner return SourceRange(LParenLoc, Init->getLocEnd()); 114273d0d4fac161ed12926e010dcf8b448a8de6a2ecChris Lattner } 1143aff1edd84aaafef15b737acd8ec61abcca6d6bc3Steve Naroff 1144aff1edd84aaafef15b737acd8ec61abcca6d6bc3Steve Naroff static bool classof(const Stmt *T) { 1145aff1edd84aaafef15b737acd8ec61abcca6d6bc3Steve Naroff return T->getStmtClass() == CompoundLiteralExprClass; 1146aff1edd84aaafef15b737acd8ec61abcca6d6bc3Steve Naroff } 1147aff1edd84aaafef15b737acd8ec61abcca6d6bc3Steve Naroff static bool classof(const CompoundLiteralExpr *) { return true; } 11481237c673c07f9d827129ba02720108816abde562Ted Kremenek 11491237c673c07f9d827129ba02720108816abde562Ted Kremenek // Iterators 11501237c673c07f9d827129ba02720108816abde562Ted Kremenek virtual child_iterator child_begin(); 11511237c673c07f9d827129ba02720108816abde562Ted Kremenek virtual child_iterator child_end(); 1152aff1edd84aaafef15b737acd8ec61abcca6d6bc3Steve Naroff}; 1153aff1edd84aaafef15b737acd8ec61abcca6d6bc3Steve Naroff 115449badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// CastExpr - Base class for type casts, including both implicit 115549badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// casts (ImplicitCastExpr) and explicit casts that have some 115649badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// representation in the source code (ExplicitCastExpr's derived 115749badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// classes). 11580835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidisclass CastExpr : public Expr { 1159cdef2b75aa60cde1ca00e0aa3f89139ac89c6ae4Anders Carlssonpublic: 1160cdef2b75aa60cde1ca00e0aa3f89139ac89c6ae4Anders Carlsson /// CastKind - the kind of cast this represents. 1161cdef2b75aa60cde1ca00e0aa3f89139ac89c6ae4Anders Carlsson enum CastKind { 1162cdef2b75aa60cde1ca00e0aa3f89139ac89c6ae4Anders Carlsson /// CK_Unknown - Unknown cast kind. 1163cdef2b75aa60cde1ca00e0aa3f89139ac89c6ae4Anders Carlsson /// FIXME: The goal is to get rid of this and make all casts have a 1164cdef2b75aa60cde1ca00e0aa3f89139ac89c6ae4Anders Carlsson /// kind so that the AST client doesn't have to try to figure out what's 1165cdef2b75aa60cde1ca00e0aa3f89139ac89c6ae4Anders Carlsson /// going on. 1166cdef2b75aa60cde1ca00e0aa3f89139ac89c6ae4Anders Carlsson CK_Unknown, 1167cdef2b75aa60cde1ca00e0aa3f89139ac89c6ae4Anders Carlsson 1168cdef2b75aa60cde1ca00e0aa3f89139ac89c6ae4Anders Carlsson /// CK_BitCast - Used for reinterpret_cast. 1169cdef2b75aa60cde1ca00e0aa3f89139ac89c6ae4Anders Carlsson CK_BitCast, 1170cdef2b75aa60cde1ca00e0aa3f89139ac89c6ae4Anders Carlsson 1171cdef2b75aa60cde1ca00e0aa3f89139ac89c6ae4Anders Carlsson /// CK_NoOp - Used for const_cast. 11723503d041ca8a3535a1c1a30005a6b18ae7aed5dbAnders Carlsson CK_NoOp, 11733503d041ca8a3535a1c1a30005a6b18ae7aed5dbAnders Carlsson 11743503d041ca8a3535a1c1a30005a6b18ae7aed5dbAnders Carlsson /// CK_DerivedToBase - Derived to base class casts. 1175714179b179a31a0c3769a968ee18ba87b901b13fAnders Carlsson CK_DerivedToBase, 1176714179b179a31a0c3769a968ee18ba87b901b13fAnders Carlsson 1177714179b179a31a0c3769a968ee18ba87b901b13fAnders Carlsson /// CK_Dynamic - Dynamic cast. 11784d8673b645ad86e496b886a0f80b60763f67071dAnders Carlsson CK_Dynamic, 11794d8673b645ad86e496b886a0f80b60763f67071dAnders Carlsson 11804d8673b645ad86e496b886a0f80b60763f67071dAnders Carlsson /// CK_ToUnion - Cast to union (GCC extension). 1181112a0a8ddf23f6d25e0920002d5d4c1df0515f86Anders Carlsson CK_ToUnion, 1182112a0a8ddf23f6d25e0920002d5d4c1df0515f86Anders Carlsson 1183112a0a8ddf23f6d25e0920002d5d4c1df0515f86Anders Carlsson /// CK_ArrayToPointerDecay - Array to pointer decay. 118427a5b9b9babd1e4f8a19c5c9c0736c4b311c79b2Anders Carlsson CK_ArrayToPointerDecay, 118527a5b9b9babd1e4f8a19c5c9c0736c4b311c79b2Anders Carlsson 118627a5b9b9babd1e4f8a19c5c9c0736c4b311c79b2Anders Carlsson /// CK_NullToMemberPointer - Null pointer to member pointer. 118727a5b9b9babd1e4f8a19c5c9c0736c4b311c79b2Anders Carlsson CK_NullToMemberPointer, 118827a5b9b9babd1e4f8a19c5c9c0736c4b311c79b2Anders Carlsson 118927a5b9b9babd1e4f8a19c5c9c0736c4b311c79b2Anders Carlsson /// CK_BaseToDerivedMemberPointer - Member pointer in base class to 119027a5b9b9babd1e4f8a19c5c9c0736c4b311c79b2Anders Carlsson /// member pointer in derived class. 119127a5b9b9babd1e4f8a19c5c9c0736c4b311c79b2Anders Carlsson CK_BaseToDerivedMemberPointer 1192cdef2b75aa60cde1ca00e0aa3f89139ac89c6ae4Anders Carlsson }; 1193cdef2b75aa60cde1ca00e0aa3f89139ac89c6ae4Anders Carlsson 1194bd0fb30fa2a039439d1a30a83ea896801394d780Anders Carlsson struct CastInfo { 1195bd0fb30fa2a039439d1a30a83ea896801394d780Anders Carlsson const CastKind Kind; 1196bd0fb30fa2a039439d1a30a83ea896801394d780Anders Carlsson 1197bd0fb30fa2a039439d1a30a83ea896801394d780Anders Carlsson // FIXME: This should assert that the CastKind does not require extra 1198bd0fb30fa2a039439d1a30a83ea896801394d780Anders Carlsson // information. 1199bd0fb30fa2a039439d1a30a83ea896801394d780Anders Carlsson CastInfo(CastKind Kind) 1200bd0fb30fa2a039439d1a30a83ea896801394d780Anders Carlsson : Kind(Kind) { } 1201bd0fb30fa2a039439d1a30a83ea896801394d780Anders Carlsson }; 1202bd0fb30fa2a039439d1a30a83ea896801394d780Anders Carlsson 1203cdef2b75aa60cde1ca00e0aa3f89139ac89c6ae4Anders Carlssonprivate: 1204cdef2b75aa60cde1ca00e0aa3f89139ac89c6ae4Anders Carlsson CastKind Kind; 12050835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis Stmt *Op; 12060835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidisprotected: 1207bd0fb30fa2a039439d1a30a83ea896801394d780Anders Carlsson CastExpr(StmtClass SC, QualType ty, const CastInfo &info, Expr *op) : 1208898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor Expr(SC, ty, 1209898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // Cast expressions are type-dependent if the type is 1210898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // dependent (C++ [temp.dep.expr]p3). 1211898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor ty->isDependentType(), 1212898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // Cast expressions are value-dependent if the type is 1213898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // dependent or if the subexpression is value-dependent. 1214898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor ty->isDependentType() || (op && op->isValueDependent())), 1215bd0fb30fa2a039439d1a30a83ea896801394d780Anders Carlsson Kind(info.Kind), Op(op) {} 12160835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis 1217087fd536809ebe754d91c641a98917e02dd7452dDouglas Gregor /// \brief Construct an empty cast. 1218087fd536809ebe754d91c641a98917e02dd7452dDouglas Gregor CastExpr(StmtClass SC, EmptyShell Empty) 1219087fd536809ebe754d91c641a98917e02dd7452dDouglas Gregor : Expr(SC, Empty) { } 1220087fd536809ebe754d91c641a98917e02dd7452dDouglas Gregor 12210835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidispublic: 1222cdef2b75aa60cde1ca00e0aa3f89139ac89c6ae4Anders Carlsson CastKind getCastKind() const { return Kind; } 1223cdef2b75aa60cde1ca00e0aa3f89139ac89c6ae4Anders Carlsson void setCastKind(CastKind K) { Kind = K; } 1224cdef2b75aa60cde1ca00e0aa3f89139ac89c6ae4Anders Carlsson 12250835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis Expr *getSubExpr() { return cast<Expr>(Op); } 12260835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis const Expr *getSubExpr() const { return cast<Expr>(Op); } 1227087fd536809ebe754d91c641a98917e02dd7452dDouglas Gregor void setSubExpr(Expr *E) { Op = E; } 1228087fd536809ebe754d91c641a98917e02dd7452dDouglas Gregor 12290835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis static bool classof(const Stmt *T) { 12309d293dfc0ad7c44ae0b5eb9517f1ed8c8d8b7ff7Douglas Gregor StmtClass SC = T->getStmtClass(); 12319d293dfc0ad7c44ae0b5eb9517f1ed8c8d8b7ff7Douglas Gregor if (SC >= CXXNamedCastExprClass && SC <= CXXFunctionalCastExprClass) 12329d293dfc0ad7c44ae0b5eb9517f1ed8c8d8b7ff7Douglas Gregor return true; 12339d293dfc0ad7c44ae0b5eb9517f1ed8c8d8b7ff7Douglas Gregor 12346eec8e883de118b431e3ead5b1e604a6ac68ff6bDouglas Gregor if (SC >= ImplicitCastExprClass && SC <= CStyleCastExprClass) 12350835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis return true; 12369d293dfc0ad7c44ae0b5eb9517f1ed8c8d8b7ff7Douglas Gregor 12379d293dfc0ad7c44ae0b5eb9517f1ed8c8d8b7ff7Douglas Gregor return false; 12380835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis } 12390835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis static bool classof(const CastExpr *) { return true; } 12400835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis 12410835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis // Iterators 12420835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis virtual child_iterator child_begin(); 12430835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis virtual child_iterator child_end(); 12440835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis}; 12450835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis 124649badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// ImplicitCastExpr - Allows us to explicitly represent implicit type 124749badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// conversions, which have no direct representation in the original 124849badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// source code. For example: converting T[]->T*, void f()->void 124949badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// (*f)(), float->double, short->int, etc. 125049b4526992a8c8a6a290aa3efa9828154a24af8dSteve Naroff/// 1251bf3af056289893f58d37b05a2c80970708781d61Douglas Gregor/// In C, implicit casts always produce rvalues. However, in C++, an 1252bf3af056289893f58d37b05a2c80970708781d61Douglas Gregor/// implicit cast whose result is being bound to a reference will be 1253bf3af056289893f58d37b05a2c80970708781d61Douglas Gregor/// an lvalue. For example: 1254bf3af056289893f58d37b05a2c80970708781d61Douglas Gregor/// 1255bf3af056289893f58d37b05a2c80970708781d61Douglas Gregor/// @code 1256bf3af056289893f58d37b05a2c80970708781d61Douglas Gregor/// class Base { }; 1257bf3af056289893f58d37b05a2c80970708781d61Douglas Gregor/// class Derived : public Base { }; 1258bf3af056289893f58d37b05a2c80970708781d61Douglas Gregor/// void f(Derived d) { 1259bf3af056289893f58d37b05a2c80970708781d61Douglas Gregor/// Base& b = d; // initializer is an ImplicitCastExpr to an lvalue of type Base 1260bf3af056289893f58d37b05a2c80970708781d61Douglas Gregor/// } 1261bf3af056289893f58d37b05a2c80970708781d61Douglas Gregor/// @endcode 12620835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidisclass ImplicitCastExpr : public CastExpr { 1263eb8f3063257a392f15aea48d42fb73ec51afc548Douglas Gregor /// LvalueCast - Whether this cast produces an lvalue. 1264eb8f3063257a392f15aea48d42fb73ec51afc548Douglas Gregor bool LvalueCast; 1265eb8f3063257a392f15aea48d42fb73ec51afc548Douglas Gregor 126649b4526992a8c8a6a290aa3efa9828154a24af8dSteve Naroffpublic: 1267bd0fb30fa2a039439d1a30a83ea896801394d780Anders Carlsson ImplicitCastExpr(QualType ty, const CastInfo &info, Expr *op, bool Lvalue) : 1268bd0fb30fa2a039439d1a30a83ea896801394d780Anders Carlsson CastExpr(ImplicitCastExprClass, ty, info, op), LvalueCast(Lvalue) { } 126990045e8ebabf50d6f1b3a67081a621b20b5e5341Steve Naroff 1270087fd536809ebe754d91c641a98917e02dd7452dDouglas Gregor /// \brief Construct an empty implicit cast. 1271087fd536809ebe754d91c641a98917e02dd7452dDouglas Gregor explicit ImplicitCastExpr(EmptyShell Shell) 1272087fd536809ebe754d91c641a98917e02dd7452dDouglas Gregor : CastExpr(ImplicitCastExprClass, Shell) { } 1273087fd536809ebe754d91c641a98917e02dd7452dDouglas Gregor 1274087fd536809ebe754d91c641a98917e02dd7452dDouglas Gregor 12750835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis virtual SourceRange getSourceRange() const { 12760835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis return getSubExpr()->getSourceRange(); 12770835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis } 127890045e8ebabf50d6f1b3a67081a621b20b5e5341Steve Naroff 1279eb8f3063257a392f15aea48d42fb73ec51afc548Douglas Gregor /// isLvalueCast - Whether this cast produces an lvalue. 1280eb8f3063257a392f15aea48d42fb73ec51afc548Douglas Gregor bool isLvalueCast() const { return LvalueCast; } 1281eb8f3063257a392f15aea48d42fb73ec51afc548Douglas Gregor 1282eb8f3063257a392f15aea48d42fb73ec51afc548Douglas Gregor /// setLvalueCast - Set whether this cast produces an lvalue. 1283eb8f3063257a392f15aea48d42fb73ec51afc548Douglas Gregor void setLvalueCast(bool Lvalue) { LvalueCast = Lvalue; } 1284eb8f3063257a392f15aea48d42fb73ec51afc548Douglas Gregor 128549b4526992a8c8a6a290aa3efa9828154a24af8dSteve Naroff static bool classof(const Stmt *T) { 128649b4526992a8c8a6a290aa3efa9828154a24af8dSteve Naroff return T->getStmtClass() == ImplicitCastExprClass; 128749b4526992a8c8a6a290aa3efa9828154a24af8dSteve Naroff } 128849b4526992a8c8a6a290aa3efa9828154a24af8dSteve Naroff static bool classof(const ImplicitCastExpr *) { return true; } 128949b4526992a8c8a6a290aa3efa9828154a24af8dSteve Naroff}; 129049b4526992a8c8a6a290aa3efa9828154a24af8dSteve Naroff 129149badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// ExplicitCastExpr - An explicit cast written in the source 129249badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// code. 129349badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// 129449badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// This class is effectively an abstract class, because it provides 129549badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// the basic representation of an explicitly-written cast without 129649badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// specifying which kind of cast (C cast, functional cast, static 129749badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// cast, etc.) was written; specific derived classes represent the 129849badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// particular style of cast and its location information. 12995f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 130049badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// Unlike implicit casts, explicit cast nodes have two different 130149badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// types: the type that was written into the source code, and the 130249badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// actual type of the expression as determined by semantic 130349badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// analysis. These types may differ slightly. For example, in C++ one 130449badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// can cast to a reference type, which indicates that the resulting 130549badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// expression will be an lvalue. The reference type, however, will 130649badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// not be used as the type of the expression. 13070835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidisclass ExplicitCastExpr : public CastExpr { 130849badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor /// TypeAsWritten - The type that this expression is casting to, as 130949badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor /// written in the source code. 131049badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor QualType TypeAsWritten; 131149badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor 131249badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregorprotected: 1313bd0fb30fa2a039439d1a30a83ea896801394d780Anders Carlsson ExplicitCastExpr(StmtClass SC, QualType exprTy, const CastInfo &info, 1314bd0fb30fa2a039439d1a30a83ea896801394d780Anders Carlsson Expr *op, QualType writtenTy) 1315bd0fb30fa2a039439d1a30a83ea896801394d780Anders Carlsson : CastExpr(SC, exprTy, info, op), TypeAsWritten(writtenTy) {} 131649badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor 1317db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor /// \brief Construct an empty explicit cast. 1318db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor ExplicitCastExpr(StmtClass SC, EmptyShell Shell) 1319db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor : CastExpr(SC, Shell) { } 1320db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor 132149badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregorpublic: 132249badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor /// getTypeAsWritten - Returns the type that this expression is 132349badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor /// casting to, as written in the source code. 132449badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor QualType getTypeAsWritten() const { return TypeAsWritten; } 1325db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor void setTypeAsWritten(QualType T) { TypeAsWritten = T; } 132649badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor 132749badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor static bool classof(const Stmt *T) { 13289d293dfc0ad7c44ae0b5eb9517f1ed8c8d8b7ff7Douglas Gregor StmtClass SC = T->getStmtClass(); 13296eec8e883de118b431e3ead5b1e604a6ac68ff6bDouglas Gregor if (SC >= ExplicitCastExprClass && SC <= CStyleCastExprClass) 13309d293dfc0ad7c44ae0b5eb9517f1ed8c8d8b7ff7Douglas Gregor return true; 13319d293dfc0ad7c44ae0b5eb9517f1ed8c8d8b7ff7Douglas Gregor if (SC >= CXXNamedCastExprClass && SC <= CXXFunctionalCastExprClass) 133249badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor return true; 13339d293dfc0ad7c44ae0b5eb9517f1ed8c8d8b7ff7Douglas Gregor 13349d293dfc0ad7c44ae0b5eb9517f1ed8c8d8b7ff7Douglas Gregor return false; 133549badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor } 133649badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor static bool classof(const ExplicitCastExpr *) { return true; } 133749badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor}; 133849badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor 13396eec8e883de118b431e3ead5b1e604a6ac68ff6bDouglas Gregor/// CStyleCastExpr - An explicit cast in C (C99 6.5.4) or a C-style 134049badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// cast in C++ (C++ [expr.cast]), which uses the syntax 134149badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// (Type)expr. For example: @c (int)f. 13426eec8e883de118b431e3ead5b1e604a6ac68ff6bDouglas Gregorclass CStyleCastExpr : public ExplicitCastExpr { 1343b2f9e516327310d95840d442416084508f80c183Steve Naroff SourceLocation LPLoc; // the location of the left paren 1344b2f9e516327310d95840d442416084508f80c183Steve Naroff SourceLocation RPLoc; // the location of the right paren 13455f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 1346cdef2b75aa60cde1ca00e0aa3f89139ac89c6ae4Anders Carlsson CStyleCastExpr(QualType exprTy, CastKind kind, Expr *op, QualType writtenTy, 1347b2f9e516327310d95840d442416084508f80c183Steve Naroff SourceLocation l, SourceLocation r) : 1348cdef2b75aa60cde1ca00e0aa3f89139ac89c6ae4Anders Carlsson ExplicitCastExpr(CStyleCastExprClass, exprTy, kind, op, writtenTy), 1349b2f9e516327310d95840d442416084508f80c183Steve Naroff LPLoc(l), RPLoc(r) {} 135049b4526992a8c8a6a290aa3efa9828154a24af8dSteve Naroff 1351db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor /// \brief Construct an empty C-style explicit cast. 1352db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor explicit CStyleCastExpr(EmptyShell Shell) 1353db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor : ExplicitCastExpr(CStyleCastExprClass, Shell) { } 1354db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor 1355b2f9e516327310d95840d442416084508f80c183Steve Naroff SourceLocation getLParenLoc() const { return LPLoc; } 1356db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor void setLParenLoc(SourceLocation L) { LPLoc = L; } 1357db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor 1358b2f9e516327310d95840d442416084508f80c183Steve Naroff SourceLocation getRParenLoc() const { return RPLoc; } 1359db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor void setRParenLoc(SourceLocation L) { RPLoc = L; } 1360db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor 13615f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer virtual SourceRange getSourceRange() const { 1362b2f9e516327310d95840d442416084508f80c183Steve Naroff return SourceRange(LPLoc, getSubExpr()->getSourceRange().getEnd()); 13635f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 13645f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const Stmt *T) { 13656eec8e883de118b431e3ead5b1e604a6ac68ff6bDouglas Gregor return T->getStmtClass() == CStyleCastExprClass; 13665f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 13676eec8e883de118b431e3ead5b1e604a6ac68ff6bDouglas Gregor static bool classof(const CStyleCastExpr *) { return true; } 13685f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 13695f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 13703fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// \brief A builtin binary operation expression such as "x + y" or "x <= y". 13713fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// 13723fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// This expression node kind describes a builtin binary operation, 13733fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// such as "x + y" for integer values "x" and "y". The operands will 13743fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// already have been converted to appropriate types (e.g., by 13753fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// performing promotions or conversions). 13763fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// 13773fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// In C++, where operators may be overloaded, a different kind of 13783fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// expression node (CXXOperatorCallExpr) is used to express the 13793fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// invocation of an overloaded operator with operator syntax. Within 13803fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// a C++ template, whether BinaryOperator or CXXOperatorCallExpr is 13813fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// used to store an expression "x + y" depends on the subexpressions 13823fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// for x and y. If neither x or y is type-dependent, and the "+" 13833fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// operator resolves to a built-in operation, BinaryOperator will be 13843fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// used to express the computation (x and y may still be 13853fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// value-dependent). If either x or y is type-dependent, or if the 13863fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// "+" resolves to an overloaded operator, CXXOperatorCallExpr will 13873fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// be used to express the computation. 13885f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass BinaryOperator : public Expr { 13895f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 13905f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer enum Opcode { 13915f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Operators listed in order of precedence. 139203d6fb99224c36935c9af9f4785cb33453c99b2bChris Lattner // Note that additions to this should also update the StmtVisitor class. 1393224605064a4ef87d1c3d35ad1cb363f8b534012bSebastian Redl PtrMemD, PtrMemI, // [C++ 5.5] Pointer-to-member operators. 13945f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Mul, Div, Rem, // [C99 6.5.5] Multiplicative operators. 13955f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Add, Sub, // [C99 6.5.6] Additive operators. 13965f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Shl, Shr, // [C99 6.5.7] Bitwise shift operators. 13975f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer LT, GT, LE, GE, // [C99 6.5.8] Relational operators. 13985f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer EQ, NE, // [C99 6.5.9] Equality operators. 13995f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer And, // [C99 6.5.10] Bitwise AND operator. 14005f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Xor, // [C99 6.5.11] Bitwise XOR operator. 14015f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Or, // [C99 6.5.12] Bitwise OR operator. 14025f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer LAnd, // [C99 6.5.13] Logical AND operator. 14035f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer LOr, // [C99 6.5.14] Logical OR operator. 14045f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Assign, MulAssign,// [C99 6.5.16] Assignment operators. 14055f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer DivAssign, RemAssign, 14065f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer AddAssign, SubAssign, 14075f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ShlAssign, ShrAssign, 14085f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer AndAssign, XorAssign, 14095f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer OrAssign, 14105f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Comma // [C99 6.5.17] Comma operator. 14115f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer }; 141217d1b2ac9f8371a0a2e79d4f8e0008658164f080Chris Lattnerprivate: 141317d1b2ac9f8371a0a2e79d4f8e0008658164f080Chris Lattner enum { LHS, RHS, END_EXPR }; 14145549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Stmt* SubExprs[END_EXPR]; 141517d1b2ac9f8371a0a2e79d4f8e0008658164f080Chris Lattner Opcode Opc; 141617d1b2ac9f8371a0a2e79d4f8e0008658164f080Chris Lattner SourceLocation OpLoc; 141717d1b2ac9f8371a0a2e79d4f8e0008658164f080Chris Lattnerpublic: 14185f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 141917d1b2ac9f8371a0a2e79d4f8e0008658164f080Chris Lattner BinaryOperator(Expr *lhs, Expr *rhs, Opcode opc, QualType ResTy, 142017d1b2ac9f8371a0a2e79d4f8e0008658164f080Chris Lattner SourceLocation opLoc) 1421898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor : Expr(BinaryOperatorClass, ResTy, 1422898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor lhs->isTypeDependent() || rhs->isTypeDependent(), 1423898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor lhs->isValueDependent() || rhs->isValueDependent()), 1424898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor Opc(opc), OpLoc(opLoc) { 14251237c673c07f9d827129ba02720108816abde562Ted Kremenek SubExprs[LHS] = lhs; 14261237c673c07f9d827129ba02720108816abde562Ted Kremenek SubExprs[RHS] = rhs; 14275f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer assert(!isCompoundAssignmentOp() && 14285f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer "Use ArithAssignBinaryOperator for compound assignments"); 14295f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 14305f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1431db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor /// \brief Construct an empty binary operator. 1432db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor explicit BinaryOperator(EmptyShell Empty) 1433db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor : Expr(BinaryOperatorClass, Empty), Opc(Comma) { } 1434db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor 143517d1b2ac9f8371a0a2e79d4f8e0008658164f080Chris Lattner SourceLocation getOperatorLoc() const { return OpLoc; } 1436db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor void setOperatorLoc(SourceLocation L) { OpLoc = L; } 1437db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor 14385f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Opcode getOpcode() const { return Opc; } 1439db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor void setOpcode(Opcode O) { Opc = O; } 1440db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor 14415549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getLHS() const { return cast<Expr>(SubExprs[LHS]); } 1442db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor void setLHS(Expr *E) { SubExprs[LHS] = E; } 14435549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getRHS() const { return cast<Expr>(SubExprs[RHS]); } 1444db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor void setRHS(Expr *E) { SubExprs[RHS] = E; } 1445db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor 14465f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer virtual SourceRange getSourceRange() const { 14475f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return SourceRange(getLHS()->getLocStart(), getRHS()->getLocEnd()); 14485f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 14495f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 14505f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// getOpcodeStr - Turn an Opcode enum value into the punctuation char it 14515f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// corresponds to, e.g. "<<=". 14525f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static const char *getOpcodeStr(Opcode Op); 14535f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1454063daf6e196c51f162e0485478355d8e280eef5cDouglas Gregor /// \brief Retrieve the binary opcode that corresponds to the given 1455063daf6e196c51f162e0485478355d8e280eef5cDouglas Gregor /// overloaded operator. 1456063daf6e196c51f162e0485478355d8e280eef5cDouglas Gregor static Opcode getOverloadedOpcode(OverloadedOperatorKind OO); 1457063daf6e196c51f162e0485478355d8e280eef5cDouglas Gregor 1458063daf6e196c51f162e0485478355d8e280eef5cDouglas Gregor /// \brief Retrieve the overloaded operator kind that corresponds to 1459063daf6e196c51f162e0485478355d8e280eef5cDouglas Gregor /// the given binary opcode. 1460063daf6e196c51f162e0485478355d8e280eef5cDouglas Gregor static OverloadedOperatorKind getOverloadedOperator(Opcode Opc); 1461063daf6e196c51f162e0485478355d8e280eef5cDouglas Gregor 14625f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// predicates to categorize the respective opcodes. 14635f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool isMultiplicativeOp() const { return Opc >= Mul && Opc <= Rem; } 14645f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool isAdditiveOp() const { return Opc == Add || Opc == Sub; } 14655f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool isShiftOp() const { return Opc == Shl || Opc == Shr; } 14665f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool isBitwiseOp() const { return Opc >= And && Opc <= Or; } 1467f2da7a06f6b98c3886d9b871ab839f5085b1c238Ted Kremenek 1468f2da7a06f6b98c3886d9b871ab839f5085b1c238Ted Kremenek static bool isRelationalOp(Opcode Opc) { return Opc >= LT && Opc <= GE; } 1469f2da7a06f6b98c3886d9b871ab839f5085b1c238Ted Kremenek bool isRelationalOp() const { return isRelationalOp(Opc); } 1470f2da7a06f6b98c3886d9b871ab839f5085b1c238Ted Kremenek 1471f2da7a06f6b98c3886d9b871ab839f5085b1c238Ted Kremenek static bool isEqualityOp(Opcode Opc) { return Opc == EQ || Opc == NE; } 1472f2da7a06f6b98c3886d9b871ab839f5085b1c238Ted Kremenek bool isEqualityOp() const { return isEqualityOp(Opc); } 1473f2da7a06f6b98c3886d9b871ab839f5085b1c238Ted Kremenek 1474f2da7a06f6b98c3886d9b871ab839f5085b1c238Ted Kremenek static bool isLogicalOp(Opcode Opc) { return Opc == LAnd || Opc == LOr; } 1475f2da7a06f6b98c3886d9b871ab839f5085b1c238Ted Kremenek bool isLogicalOp() const { return isLogicalOp(Opc); } 1476f2da7a06f6b98c3886d9b871ab839f5085b1c238Ted Kremenek 14775f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool isAssignmentOp() const { return Opc >= Assign && Opc <= OrAssign; } 14785f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool isCompoundAssignmentOp() const { return Opc > Assign && Opc <= OrAssign;} 14795f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool isShiftAssignOp() const { return Opc == ShlAssign || Opc == ShrAssign; } 14805f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1481eb14fe839ec24c2ca14e5f094be147a34e3d3339Chris Lattner static bool classof(const Stmt *S) { 1482eb14fe839ec24c2ca14e5f094be147a34e3d3339Chris Lattner return S->getStmtClass() == BinaryOperatorClass || 1483eb14fe839ec24c2ca14e5f094be147a34e3d3339Chris Lattner S->getStmtClass() == CompoundAssignOperatorClass; 14845f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 14855f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const BinaryOperator *) { return true; } 14861237c673c07f9d827129ba02720108816abde562Ted Kremenek 14871237c673c07f9d827129ba02720108816abde562Ted Kremenek // Iterators 14881237c673c07f9d827129ba02720108816abde562Ted Kremenek virtual child_iterator child_begin(); 14891237c673c07f9d827129ba02720108816abde562Ted Kremenek virtual child_iterator child_end(); 14901237c673c07f9d827129ba02720108816abde562Ted Kremenek 14915f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerprotected: 149217d1b2ac9f8371a0a2e79d4f8e0008658164f080Chris Lattner BinaryOperator(Expr *lhs, Expr *rhs, Opcode opc, QualType ResTy, 149317d1b2ac9f8371a0a2e79d4f8e0008658164f080Chris Lattner SourceLocation oploc, bool dead) 149417d1b2ac9f8371a0a2e79d4f8e0008658164f080Chris Lattner : Expr(CompoundAssignOperatorClass, ResTy), Opc(opc), OpLoc(oploc) { 14951237c673c07f9d827129ba02720108816abde562Ted Kremenek SubExprs[LHS] = lhs; 14961237c673c07f9d827129ba02720108816abde562Ted Kremenek SubExprs[RHS] = rhs; 14975f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 1498ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor 1499ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor BinaryOperator(StmtClass SC, EmptyShell Empty) 1500ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor : Expr(SC, Empty), Opc(MulAssign) { } 15015f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 15025f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 15035f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// CompoundAssignOperator - For compound assignments (e.g. +=), we keep 15045f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// track of the type the operation is performed in. Due to the semantics of 15055f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// these operators, the operands are promoted, the aritmetic performed, an 15065f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// implicit conversion back to the result type done, then the assignment takes 15075f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// place. This captures the intermediate type which the computation is done 15085f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// in. 15095f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass CompoundAssignOperator : public BinaryOperator { 1510ab3a852ae713189444dcbf75e70accf1e8c2b7f2Eli Friedman QualType ComputationLHSType; 1511ab3a852ae713189444dcbf75e70accf1e8c2b7f2Eli Friedman QualType ComputationResultType; 15125f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 15135f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer CompoundAssignOperator(Expr *lhs, Expr *rhs, Opcode opc, 1514ab3a852ae713189444dcbf75e70accf1e8c2b7f2Eli Friedman QualType ResType, QualType CompLHSType, 1515ab3a852ae713189444dcbf75e70accf1e8c2b7f2Eli Friedman QualType CompResultType, 151617d1b2ac9f8371a0a2e79d4f8e0008658164f080Chris Lattner SourceLocation OpLoc) 151717d1b2ac9f8371a0a2e79d4f8e0008658164f080Chris Lattner : BinaryOperator(lhs, rhs, opc, ResType, OpLoc, true), 1518ab3a852ae713189444dcbf75e70accf1e8c2b7f2Eli Friedman ComputationLHSType(CompLHSType), 1519ab3a852ae713189444dcbf75e70accf1e8c2b7f2Eli Friedman ComputationResultType(CompResultType) { 15205f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer assert(isCompoundAssignmentOp() && 15215f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer "Only should be used for compound assignments"); 15225f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 15235f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1524ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor /// \brief Build an empty compound assignment operator expression. 1525ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor explicit CompoundAssignOperator(EmptyShell Empty) 1526ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor : BinaryOperator(CompoundAssignOperatorClass, Empty) { } 1527ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor 1528ab3a852ae713189444dcbf75e70accf1e8c2b7f2Eli Friedman // The two computation types are the type the LHS is converted 1529ab3a852ae713189444dcbf75e70accf1e8c2b7f2Eli Friedman // to for the computation and the type of the result; the two are 1530ab3a852ae713189444dcbf75e70accf1e8c2b7f2Eli Friedman // distinct in a few cases (specifically, int+=ptr and ptr-=ptr). 1531ab3a852ae713189444dcbf75e70accf1e8c2b7f2Eli Friedman QualType getComputationLHSType() const { return ComputationLHSType; } 1532ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor void setComputationLHSType(QualType T) { ComputationLHSType = T; } 1533ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor 1534ab3a852ae713189444dcbf75e70accf1e8c2b7f2Eli Friedman QualType getComputationResultType() const { return ComputationResultType; } 1535ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor void setComputationResultType(QualType T) { ComputationResultType = T; } 1536ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor 15375f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const CompoundAssignOperator *) { return true; } 15385f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const Stmt *S) { 1539eb14fe839ec24c2ca14e5f094be147a34e3d3339Chris Lattner return S->getStmtClass() == CompoundAssignOperatorClass; 15405f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 15415f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 15425f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 15435f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// ConditionalOperator - The ?: operator. Note that LHS may be null when the 15445f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// GNU "missing LHS" extension is in use. 15455f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 15465f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass ConditionalOperator : public Expr { 15471237c673c07f9d827129ba02720108816abde562Ted Kremenek enum { COND, LHS, RHS, END_EXPR }; 15485549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Stmt* SubExprs[END_EXPR]; // Left/Middle/Right hand sides. 15495f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 15505f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ConditionalOperator(Expr *cond, Expr *lhs, Expr *rhs, QualType t) 1551898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor : Expr(ConditionalOperatorClass, t, 1552898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // FIXME: the type of the conditional operator doesn't 1553898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // depend on the type of the conditional, but the standard 1554898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // seems to imply that it could. File a bug! 1555898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor ((lhs && lhs->isTypeDependent()) || (rhs && rhs->isTypeDependent())), 1556898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor (cond->isValueDependent() || 1557898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor (lhs && lhs->isValueDependent()) || 1558898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor (rhs && rhs->isValueDependent()))) { 15591237c673c07f9d827129ba02720108816abde562Ted Kremenek SubExprs[COND] = cond; 15601237c673c07f9d827129ba02720108816abde562Ted Kremenek SubExprs[LHS] = lhs; 15611237c673c07f9d827129ba02720108816abde562Ted Kremenek SubExprs[RHS] = rhs; 15621237c673c07f9d827129ba02720108816abde562Ted Kremenek } 15635f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1564ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor /// \brief Build an empty conditional operator. 1565ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor explicit ConditionalOperator(EmptyShell Empty) 1566ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor : Expr(ConditionalOperatorClass, Empty) { } 1567ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor 1568395a2abf0028968d85958610e393e067885dc14fTed Kremenek // getCond - Return the expression representing the condition for 1569395a2abf0028968d85958610e393e067885dc14fTed Kremenek // the ?: operator. 15705549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getCond() const { return cast<Expr>(SubExprs[COND]); } 1571ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor void setCond(Expr *E) { SubExprs[COND] = E; } 1572395a2abf0028968d85958610e393e067885dc14fTed Kremenek 1573395a2abf0028968d85958610e393e067885dc14fTed Kremenek // getTrueExpr - Return the subexpression representing the value of the ?: 1574395a2abf0028968d85958610e393e067885dc14fTed Kremenek // expression if the condition evaluates to true. In most cases this value 1575395a2abf0028968d85958610e393e067885dc14fTed Kremenek // will be the same as getLHS() except a GCC extension allows the left 1576395a2abf0028968d85958610e393e067885dc14fTed Kremenek // subexpression to be omitted, and instead of the condition be returned. 1577395a2abf0028968d85958610e393e067885dc14fTed Kremenek // e.g: x ?: y is shorthand for x ? x : y, except that the expression "x" 1578395a2abf0028968d85958610e393e067885dc14fTed Kremenek // is only evaluated once. 1579395a2abf0028968d85958610e393e067885dc14fTed Kremenek Expr *getTrueExpr() const { 15805549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek return cast<Expr>(SubExprs[LHS] ? SubExprs[LHS] : SubExprs[COND]); 1581395a2abf0028968d85958610e393e067885dc14fTed Kremenek } 1582395a2abf0028968d85958610e393e067885dc14fTed Kremenek 1583395a2abf0028968d85958610e393e067885dc14fTed Kremenek // getTrueExpr - Return the subexpression representing the value of the ?: 1584395a2abf0028968d85958610e393e067885dc14fTed Kremenek // expression if the condition evaluates to false. This is the same as getRHS. 15855549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getFalseExpr() const { return cast<Expr>(SubExprs[RHS]); } 1586395a2abf0028968d85958610e393e067885dc14fTed Kremenek 15875549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getLHS() const { return cast_or_null<Expr>(SubExprs[LHS]); } 1588ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor void setLHS(Expr *E) { SubExprs[LHS] = E; } 1589ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor 15905549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getRHS() const { return cast<Expr>(SubExprs[RHS]); } 1591ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor void setRHS(Expr *E) { SubExprs[RHS] = E; } 15925f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 15935f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer virtual SourceRange getSourceRange() const { 15945f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return SourceRange(getCond()->getLocStart(), getRHS()->getLocEnd()); 15955f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 15965f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const Stmt *T) { 15975f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return T->getStmtClass() == ConditionalOperatorClass; 15985f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 15995f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const ConditionalOperator *) { return true; } 16001237c673c07f9d827129ba02720108816abde562Ted Kremenek 16011237c673c07f9d827129ba02720108816abde562Ted Kremenek // Iterators 16021237c673c07f9d827129ba02720108816abde562Ted Kremenek virtual child_iterator child_begin(); 16031237c673c07f9d827129ba02720108816abde562Ted Kremenek virtual child_iterator child_end(); 16045f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 16055f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 16066481a57fefbf1a313ff439028470fe4c27a3b7a3Chris Lattner/// AddrLabelExpr - The GNU address of label extension, representing &&label. 16076481a57fefbf1a313ff439028470fe4c27a3b7a3Chris Lattnerclass AddrLabelExpr : public Expr { 16085f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation AmpAmpLoc, LabelLoc; 16095f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer LabelStmt *Label; 16105f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 16116481a57fefbf1a313ff439028470fe4c27a3b7a3Chris Lattner AddrLabelExpr(SourceLocation AALoc, SourceLocation LLoc, LabelStmt *L, 16126481a57fefbf1a313ff439028470fe4c27a3b7a3Chris Lattner QualType t) 16136481a57fefbf1a313ff439028470fe4c27a3b7a3Chris Lattner : Expr(AddrLabelExprClass, t), AmpAmpLoc(AALoc), LabelLoc(LLoc), Label(L) {} 16145f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 16157d5c2f241c74e5f8d9ec492e8f9f268e5e9ae41fDouglas Gregor /// \brief Build an empty address of a label expression. 16167d5c2f241c74e5f8d9ec492e8f9f268e5e9ae41fDouglas Gregor explicit AddrLabelExpr(EmptyShell Empty) 16177d5c2f241c74e5f8d9ec492e8f9f268e5e9ae41fDouglas Gregor : Expr(AddrLabelExprClass, Empty) { } 16187d5c2f241c74e5f8d9ec492e8f9f268e5e9ae41fDouglas Gregor 16197d5c2f241c74e5f8d9ec492e8f9f268e5e9ae41fDouglas Gregor SourceLocation getAmpAmpLoc() const { return AmpAmpLoc; } 16207d5c2f241c74e5f8d9ec492e8f9f268e5e9ae41fDouglas Gregor void setAmpAmpLoc(SourceLocation L) { AmpAmpLoc = L; } 16217d5c2f241c74e5f8d9ec492e8f9f268e5e9ae41fDouglas Gregor SourceLocation getLabelLoc() const { return LabelLoc; } 16227d5c2f241c74e5f8d9ec492e8f9f268e5e9ae41fDouglas Gregor void setLabelLoc(SourceLocation L) { LabelLoc = L; } 16237d5c2f241c74e5f8d9ec492e8f9f268e5e9ae41fDouglas Gregor 16245f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer virtual SourceRange getSourceRange() const { 16255f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return SourceRange(AmpAmpLoc, LabelLoc); 16265f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 16275f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 16285f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer LabelStmt *getLabel() const { return Label; } 16297d5c2f241c74e5f8d9ec492e8f9f268e5e9ae41fDouglas Gregor void setLabel(LabelStmt *S) { Label = S; } 16307d5c2f241c74e5f8d9ec492e8f9f268e5e9ae41fDouglas Gregor 16315f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const Stmt *T) { 16326481a57fefbf1a313ff439028470fe4c27a3b7a3Chris Lattner return T->getStmtClass() == AddrLabelExprClass; 16335f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 16346481a57fefbf1a313ff439028470fe4c27a3b7a3Chris Lattner static bool classof(const AddrLabelExpr *) { return true; } 16351237c673c07f9d827129ba02720108816abde562Ted Kremenek 16361237c673c07f9d827129ba02720108816abde562Ted Kremenek // Iterators 16371237c673c07f9d827129ba02720108816abde562Ted Kremenek virtual child_iterator child_begin(); 16381237c673c07f9d827129ba02720108816abde562Ted Kremenek virtual child_iterator child_end(); 16395f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 1640ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner 1641ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner/// StmtExpr - This is the GNU Statement Expression extension: ({int X=4; X;}). 1642ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner/// The StmtExpr contains a single CompoundStmt node, which it evaluates and 1643ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner/// takes the value of the last subexpression. 1644ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattnerclass StmtExpr : public Expr { 16455549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Stmt *SubStmt; 1646ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner SourceLocation LParenLoc, RParenLoc; 1647ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattnerpublic: 1648d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroff StmtExpr(CompoundStmt *substmt, QualType T, 1649d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroff SourceLocation lp, SourceLocation rp) : 1650d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroff Expr(StmtExprClass, T), SubStmt(substmt), LParenLoc(lp), RParenLoc(rp) { } 1651ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner 16526a2dd55b0b3ae376d449a4b07bbb6b2d30b26330Douglas Gregor /// \brief Build an empty statement expression. 16536a2dd55b0b3ae376d449a4b07bbb6b2d30b26330Douglas Gregor explicit StmtExpr(EmptyShell Empty) : Expr(StmtExprClass, Empty) { } 16546a2dd55b0b3ae376d449a4b07bbb6b2d30b26330Douglas Gregor 16555549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek CompoundStmt *getSubStmt() { return cast<CompoundStmt>(SubStmt); } 16565549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek const CompoundStmt *getSubStmt() const { return cast<CompoundStmt>(SubStmt); } 16576a2dd55b0b3ae376d449a4b07bbb6b2d30b26330Douglas Gregor void setSubStmt(CompoundStmt *S) { SubStmt = S; } 16586a2dd55b0b3ae376d449a4b07bbb6b2d30b26330Douglas Gregor 1659ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner virtual SourceRange getSourceRange() const { 1660ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner return SourceRange(LParenLoc, RParenLoc); 1661ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner } 16625f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1663026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner SourceLocation getLParenLoc() const { return LParenLoc; } 16646a2dd55b0b3ae376d449a4b07bbb6b2d30b26330Douglas Gregor void setLParenLoc(SourceLocation L) { LParenLoc = L; } 1665026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner SourceLocation getRParenLoc() const { return RParenLoc; } 16666a2dd55b0b3ae376d449a4b07bbb6b2d30b26330Douglas Gregor void setRParenLoc(SourceLocation L) { RParenLoc = L; } 1667026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner 1668ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner static bool classof(const Stmt *T) { 1669ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner return T->getStmtClass() == StmtExprClass; 1670ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner } 1671ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner static bool classof(const StmtExpr *) { return true; } 16721237c673c07f9d827129ba02720108816abde562Ted Kremenek 16731237c673c07f9d827129ba02720108816abde562Ted Kremenek // Iterators 16741237c673c07f9d827129ba02720108816abde562Ted Kremenek virtual child_iterator child_begin(); 16751237c673c07f9d827129ba02720108816abde562Ted Kremenek virtual child_iterator child_end(); 1676ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner}; 1677ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner 1678dc241b42c7588f99027b035a09b71557a6db219eDouglas Gregor/// TypesCompatibleExpr - GNU builtin-in function __builtin_types_compatible_p. 1679d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroff/// This AST node represents a function that returns 1 if two *types* (not 1680d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroff/// expressions) are compatible. The result of this built-in function can be 1681d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroff/// used in integer constant expressions. 1682d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroffclass TypesCompatibleExpr : public Expr { 1683d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroff QualType Type1; 1684d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroff QualType Type2; 1685363bcff47df2fda3cfcfcd994b7888157df58c43Steve Naroff SourceLocation BuiltinLoc, RParenLoc; 1686d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroffpublic: 1687363bcff47df2fda3cfcfcd994b7888157df58c43Steve Naroff TypesCompatibleExpr(QualType ReturnType, SourceLocation BLoc, 1688d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroff QualType t1, QualType t2, SourceLocation RP) : 1689d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroff Expr(TypesCompatibleExprClass, ReturnType), Type1(t1), Type2(t2), 1690363bcff47df2fda3cfcfcd994b7888157df58c43Steve Naroff BuiltinLoc(BLoc), RParenLoc(RP) {} 1691d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroff 169244cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor /// \brief Build an empty __builtin_type_compatible_p expression. 169344cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor explicit TypesCompatibleExpr(EmptyShell Empty) 169444cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor : Expr(TypesCompatibleExprClass, Empty) { } 169544cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor 16967f28fe8e00ec4fac17977374d8da491f873a3b05Steve Naroff QualType getArgType1() const { return Type1; } 169744cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor void setArgType1(QualType T) { Type1 = T; } 16987f28fe8e00ec4fac17977374d8da491f873a3b05Steve Naroff QualType getArgType2() const { return Type2; } 169944cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor void setArgType2(QualType T) { Type2 = T; } 1700ec0550fa3653d46560bf4484a2e988329c228e39Steve Naroff 170144cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor SourceLocation getBuiltinLoc() const { return BuiltinLoc; } 170244cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor void setBuiltinLoc(SourceLocation L) { BuiltinLoc = L; } 170344cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor 170444cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor SourceLocation getRParenLoc() const { return RParenLoc; } 170544cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor void setRParenLoc(SourceLocation L) { RParenLoc = L; } 170644cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor 1707d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroff virtual SourceRange getSourceRange() const { 1708363bcff47df2fda3cfcfcd994b7888157df58c43Steve Naroff return SourceRange(BuiltinLoc, RParenLoc); 1709d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroff } 1710d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroff static bool classof(const Stmt *T) { 1711d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroff return T->getStmtClass() == TypesCompatibleExprClass; 1712d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroff } 1713d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroff static bool classof(const TypesCompatibleExpr *) { return true; } 17141237c673c07f9d827129ba02720108816abde562Ted Kremenek 17151237c673c07f9d827129ba02720108816abde562Ted Kremenek // Iterators 17161237c673c07f9d827129ba02720108816abde562Ted Kremenek virtual child_iterator child_begin(); 17171237c673c07f9d827129ba02720108816abde562Ted Kremenek virtual child_iterator child_end(); 1718d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroff}; 1719d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroff 1720d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman/// ShuffleVectorExpr - clang-specific builtin-in function 1721d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman/// __builtin_shufflevector. 1722d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman/// This AST node represents a operator that does a constant 1723d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman/// shuffle, similar to LLVM's shufflevector instruction. It takes 1724d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman/// two vectors and a variable number of constant indices, 1725d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman/// and returns the appropriately shuffled vector. 1726d38617c8a50f9729c254ab76cd359af797c6739bEli Friedmanclass ShuffleVectorExpr : public Expr { 1727d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman SourceLocation BuiltinLoc, RParenLoc; 1728d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman 1729d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman // SubExprs - the list of values passed to the __builtin_shufflevector 1730d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman // function. The first two are vectors, and the rest are constant 1731d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman // indices. The number of values in this list is always 1732d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman // 2+the number of indices in the vector type. 17335549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Stmt **SubExprs; 1734d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman unsigned NumExprs; 1735d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman 1736888376a2bbcfc2f047902249f8455918e2489ae1Nate Begemanprotected: 1737888376a2bbcfc2f047902249f8455918e2489ae1Nate Begeman virtual void DoDestroy(ASTContext &C); 1738888376a2bbcfc2f047902249f8455918e2489ae1Nate Begeman 1739d38617c8a50f9729c254ab76cd359af797c6739bEli Friedmanpublic: 1740a88dc3079bedf70a5cfc39791727e43a10383006Nate Begeman ShuffleVectorExpr(ASTContext &C, Expr **args, unsigned nexpr, 1741d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman QualType Type, SourceLocation BLoc, 1742d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman SourceLocation RP) : 1743d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman Expr(ShuffleVectorExprClass, Type), BuiltinLoc(BLoc), 1744f809e3bd0c3d063f22ba34981072dae306ca9272Ted Kremenek RParenLoc(RP), NumExprs(nexpr) { 1745a88dc3079bedf70a5cfc39791727e43a10383006Nate Begeman 1746a88dc3079bedf70a5cfc39791727e43a10383006Nate Begeman SubExprs = new (C) Stmt*[nexpr]; 1747d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman for (unsigned i = 0; i < nexpr; i++) 1748d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman SubExprs[i] = args[i]; 1749d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman } 175094cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor 175194cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor /// \brief Build an empty vector-shuffle expression. 175294cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor explicit ShuffleVectorExpr(EmptyShell Empty) 175394cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor : Expr(ShuffleVectorExprClass, Empty), SubExprs(0) { } 175494cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor 175594cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor SourceLocation getBuiltinLoc() const { return BuiltinLoc; } 175694cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor void setBuiltinLoc(SourceLocation L) { BuiltinLoc = L; } 175794cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor 175894cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor SourceLocation getRParenLoc() const { return RParenLoc; } 175994cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor void setRParenLoc(SourceLocation L) { RParenLoc = L; } 176094cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor 1761d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman virtual SourceRange getSourceRange() const { 1762d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman return SourceRange(BuiltinLoc, RParenLoc); 1763d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman } 1764d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman static bool classof(const Stmt *T) { 1765d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman return T->getStmtClass() == ShuffleVectorExprClass; 1766d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman } 1767d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman static bool classof(const ShuffleVectorExpr *) { return true; } 1768d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman 1769888376a2bbcfc2f047902249f8455918e2489ae1Nate Begeman ~ShuffleVectorExpr() {} 1770d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman 1771d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman /// getNumSubExprs - Return the size of the SubExprs array. This includes the 1772d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman /// constant expression, the actual arguments passed in, and the function 1773d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman /// pointers. 1774d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman unsigned getNumSubExprs() const { return NumExprs; } 1775d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman 1776d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman /// getExpr - Return the Expr at the specified index. 1777d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman Expr *getExpr(unsigned Index) { 1778d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman assert((Index < NumExprs) && "Arg access out of range!"); 17795549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek return cast<Expr>(SubExprs[Index]); 1780d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman } 1781d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman const Expr *getExpr(unsigned Index) const { 1782d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman assert((Index < NumExprs) && "Arg access out of range!"); 17835549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek return cast<Expr>(SubExprs[Index]); 1784d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman } 1785888376a2bbcfc2f047902249f8455918e2489ae1Nate Begeman 1786888376a2bbcfc2f047902249f8455918e2489ae1Nate Begeman void setExprs(ASTContext &C, Expr ** Exprs, unsigned NumExprs); 178794cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor 1788dde8c94873976632e3ada4d8d067e1e244184d51Eli Friedman unsigned getShuffleMaskIdx(ASTContext &Ctx, unsigned N) { 1789dde8c94873976632e3ada4d8d067e1e244184d51Eli Friedman assert((N < NumExprs - 2) && "Shuffle idx out of range!"); 17909a901bb63990574ff0bcc12ff851d7a71cff8ddbEli Friedman return getExpr(N+2)->EvaluateAsInt(Ctx).getZExtValue(); 1791d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman } 1792d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman 1793d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman // Iterators 1794d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman virtual child_iterator child_begin(); 1795d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman virtual child_iterator child_end(); 1796d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman}; 1797d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman 1798d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff/// ChooseExpr - GNU builtin-in function __builtin_choose_expr. 1799d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff/// This AST node is similar to the conditional operator (?:) in C, with 1800d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff/// the following exceptions: 18017976932a1c256d447316ffac58e9821417725e34Eli Friedman/// - the test expression must be a integer constant expression. 18027976932a1c256d447316ffac58e9821417725e34Eli Friedman/// - the expression returned acts like the chosen subexpression in every 18037976932a1c256d447316ffac58e9821417725e34Eli Friedman/// visible way: the type is the same as that of the chosen subexpression, 18047976932a1c256d447316ffac58e9821417725e34Eli Friedman/// and all predicates (whether it's an l-value, whether it's an integer 18057976932a1c256d447316ffac58e9821417725e34Eli Friedman/// constant expression, etc.) return the same result as for the chosen 18067976932a1c256d447316ffac58e9821417725e34Eli Friedman/// sub-expression. 1807d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroffclass ChooseExpr : public Expr { 18081237c673c07f9d827129ba02720108816abde562Ted Kremenek enum { COND, LHS, RHS, END_EXPR }; 18095549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Stmt* SubExprs[END_EXPR]; // Left/Middle/Right hand sides. 1810d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff SourceLocation BuiltinLoc, RParenLoc; 1811d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroffpublic: 1812d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff ChooseExpr(SourceLocation BLoc, Expr *cond, Expr *lhs, Expr *rhs, QualType t, 1813d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff SourceLocation RP) 1814d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff : Expr(ChooseExprClass, t), 18151237c673c07f9d827129ba02720108816abde562Ted Kremenek BuiltinLoc(BLoc), RParenLoc(RP) { 18161237c673c07f9d827129ba02720108816abde562Ted Kremenek SubExprs[COND] = cond; 18171237c673c07f9d827129ba02720108816abde562Ted Kremenek SubExprs[LHS] = lhs; 18181237c673c07f9d827129ba02720108816abde562Ted Kremenek SubExprs[RHS] = rhs; 18191237c673c07f9d827129ba02720108816abde562Ted Kremenek } 18207976932a1c256d447316ffac58e9821417725e34Eli Friedman 182144cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor /// \brief Build an empty __builtin_choose_expr. 182244cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor explicit ChooseExpr(EmptyShell Empty) : Expr(ChooseExprClass, Empty) { } 182344cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor 18247976932a1c256d447316ffac58e9821417725e34Eli Friedman /// isConditionTrue - Return whether the condition is true (i.e. not 18257976932a1c256d447316ffac58e9821417725e34Eli Friedman /// equal to zero). 182627437caadea35f84d550cd29f024fcf3ea240eecChris Lattner bool isConditionTrue(ASTContext &C) const; 18277976932a1c256d447316ffac58e9821417725e34Eli Friedman 18287976932a1c256d447316ffac58e9821417725e34Eli Friedman /// getChosenSubExpr - Return the subexpression chosen according to the 18297976932a1c256d447316ffac58e9821417725e34Eli Friedman /// condition. 18307976932a1c256d447316ffac58e9821417725e34Eli Friedman Expr *getChosenSubExpr(ASTContext &C) const { 18317976932a1c256d447316ffac58e9821417725e34Eli Friedman return isConditionTrue(C) ? getLHS() : getRHS(); 18327976932a1c256d447316ffac58e9821417725e34Eli Friedman } 18337976932a1c256d447316ffac58e9821417725e34Eli Friedman 18345549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getCond() const { return cast<Expr>(SubExprs[COND]); } 183544cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor void setCond(Expr *E) { SubExprs[COND] = E; } 18365549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getLHS() const { return cast<Expr>(SubExprs[LHS]); } 183744cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor void setLHS(Expr *E) { SubExprs[LHS] = E; } 18385549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getRHS() const { return cast<Expr>(SubExprs[RHS]); } 183944cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor void setRHS(Expr *E) { SubExprs[RHS] = E; } 184044cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor 184144cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor SourceLocation getBuiltinLoc() const { return BuiltinLoc; } 184244cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor void setBuiltinLoc(SourceLocation L) { BuiltinLoc = L; } 184344cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor 184444cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor SourceLocation getRParenLoc() const { return RParenLoc; } 184544cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor void setRParenLoc(SourceLocation L) { RParenLoc = L; } 18461237c673c07f9d827129ba02720108816abde562Ted Kremenek 1847d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff virtual SourceRange getSourceRange() const { 1848d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff return SourceRange(BuiltinLoc, RParenLoc); 1849d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff } 1850d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff static bool classof(const Stmt *T) { 1851d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff return T->getStmtClass() == ChooseExprClass; 1852d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff } 1853d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff static bool classof(const ChooseExpr *) { return true; } 18541237c673c07f9d827129ba02720108816abde562Ted Kremenek 18551237c673c07f9d827129ba02720108816abde562Ted Kremenek // Iterators 18561237c673c07f9d827129ba02720108816abde562Ted Kremenek virtual child_iterator child_begin(); 18571237c673c07f9d827129ba02720108816abde562Ted Kremenek virtual child_iterator child_end(); 1858d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff}; 1859d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff 18602d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor/// GNUNullExpr - Implements the GNU __null extension, which is a name 18612d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor/// for a null pointer constant that has integral type (e.g., int or 18622d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor/// long) and is the same size and alignment as a pointer. The __null 18632d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor/// extension is typically only used by system headers, which define 18642d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor/// NULL as __null in C++ rather than using 0 (which is an integer 18652d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor/// that may not match the size of a pointer). 18662d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregorclass GNUNullExpr : public Expr { 18672d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor /// TokenLoc - The location of the __null keyword. 18682d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor SourceLocation TokenLoc; 18692d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor 18702d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregorpublic: 18712d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor GNUNullExpr(QualType Ty, SourceLocation Loc) 18722d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor : Expr(GNUNullExprClass, Ty), TokenLoc(Loc) { } 18732d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor 187444cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor /// \brief Build an empty GNU __null expression. 187544cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor explicit GNUNullExpr(EmptyShell Empty) : Expr(GNUNullExprClass, Empty) { } 187644cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor 18772d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor /// getTokenLocation - The location of the __null token. 18782d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor SourceLocation getTokenLocation() const { return TokenLoc; } 187944cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor void setTokenLocation(SourceLocation L) { TokenLoc = L; } 18802d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor 18812d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor virtual SourceRange getSourceRange() const { 18822d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor return SourceRange(TokenLoc); 18832d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor } 18842d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor static bool classof(const Stmt *T) { 18852d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor return T->getStmtClass() == GNUNullExprClass; 18862d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor } 18872d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor static bool classof(const GNUNullExpr *) { return true; } 18882d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor 18892d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor // Iterators 18902d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor virtual child_iterator child_begin(); 18912d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor virtual child_iterator child_end(); 18922d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor}; 18932d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor 18947c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson/// VAArgExpr, used for the builtin function __builtin_va_start. 18957c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlssonclass VAArgExpr : public Expr { 18965549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Stmt *Val; 18977c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson SourceLocation BuiltinLoc, RParenLoc; 18987c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlssonpublic: 18997c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson VAArgExpr(SourceLocation BLoc, Expr* e, QualType t, SourceLocation RPLoc) 19007c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson : Expr(VAArgExprClass, t), 19017c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson Val(e), 19027c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson BuiltinLoc(BLoc), 19037c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson RParenLoc(RPLoc) { } 19047c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson 1905d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor /// \brief Create an empty __builtin_va_start expression. 1906d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor explicit VAArgExpr(EmptyShell Empty) : Expr(VAArgExprClass, Empty) { } 1907d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor 19085549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek const Expr *getSubExpr() const { return cast<Expr>(Val); } 19095549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getSubExpr() { return cast<Expr>(Val); } 1910d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor void setSubExpr(Expr *E) { Val = E; } 1911d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor 1912d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor SourceLocation getBuiltinLoc() const { return BuiltinLoc; } 1913d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor void setBuiltinLoc(SourceLocation L) { BuiltinLoc = L; } 1914d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor 1915d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor SourceLocation getRParenLoc() const { return RParenLoc; } 1916d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor void setRParenLoc(SourceLocation L) { RParenLoc = L; } 1917d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor 19187c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson virtual SourceRange getSourceRange() const { 19197c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson return SourceRange(BuiltinLoc, RParenLoc); 19207c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson } 19217c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson static bool classof(const Stmt *T) { 19227c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson return T->getStmtClass() == VAArgExprClass; 19237c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson } 19247c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson static bool classof(const VAArgExpr *) { return true; } 19257c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson 19267c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson // Iterators 19277c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson virtual child_iterator child_begin(); 19287c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson virtual child_iterator child_end(); 19297c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson}; 19307c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson 19314c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// @brief Describes an C or C++ initializer list. 19324c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// 19334c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// InitListExpr describes an initializer list, which can be used to 19344c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// initialize objects of different types, including 19354c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// struct/class/union types, arrays, and vectors. For example: 19364c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// 19374c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// @code 19384c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// struct foo x = { 1, { 2, 3 } }; 19394c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// @endcode 1940196ef51bc4d008ec1c69851fb3b0f8d036065931Chris Lattner/// 19414c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// Prior to semantic analysis, an initializer list will represent the 19424c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// initializer list as written by the user, but will have the 19434c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// placeholder type "void". This initializer list is called the 19444c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// syntactic form of the initializer, and may contain C99 designated 19454c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// initializers (represented as DesignatedInitExprs), initializations 19464c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// of subobject members without explicit braces, and so on. Clients 19474c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// interested in the original syntax of the initializer list should 19484c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// use the syntactic form of the initializer list. 1949196ef51bc4d008ec1c69851fb3b0f8d036065931Chris Lattner/// 19504c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// After semantic analysis, the initializer list will represent the 19514c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// semantic form of the initializer, where the initializations of all 19524c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// subobjects are made explicit with nested InitListExpr nodes and 19534c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// C99 designators have been eliminated by placing the designated 19544c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// initializations into the subobject they initialize. Additionally, 19554c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// any "holes" in the initialization, where no initializer has been 19564c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// specified for a particular subobject, will be replaced with 19573498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor/// implicitly-generated ImplicitValueInitExpr expressions that 19584c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// value-initialize the subobjects. Note, however, that the 19594c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// initializer lists may still have fewer initializers than there are 19604c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// elements to initialize within the object. 1961196ef51bc4d008ec1c69851fb3b0f8d036065931Chris Lattner/// 19624c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// Given the semantic form of the initializer list, one can retrieve 19634c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// the original syntactic form of that initializer list (if it 19644c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// exists) using getSyntacticForm(). Since many initializer lists 19654c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// have the same syntactic and semantic forms, getSyntacticForm() may 19664c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// return NULL, indicating that the current initializer list also 19674c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// serves as its syntactic form. 196866b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlssonclass InitListExpr : public Expr { 196941ef0c3472a3d09c29bc1792f3d26842f2b8a695Douglas Gregor // FIXME: Eliminate this vector in favor of ASTContext allocation 19705549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek std::vector<Stmt *> InitExprs; 197166b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson SourceLocation LBraceLoc, RBraceLoc; 1972418f6c7d142e5ff4607f70cd8431d008442bafe9Chris Lattner 19734c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// Contains the initializer list that describes the syntactic form 19744c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// written in the source code. 19754c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor InitListExpr *SyntacticForm; 19764c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor 19770bb76897bedb8b747efc6523efb432fc24966118Douglas Gregor /// If this initializer list initializes a union, specifies which 19780bb76897bedb8b747efc6523efb432fc24966118Douglas Gregor /// field within the union will be initialized. 19790bb76897bedb8b747efc6523efb432fc24966118Douglas Gregor FieldDecl *UnionFieldInit; 19800bb76897bedb8b747efc6523efb432fc24966118Douglas Gregor 1981a9c878086036de36482cc21e35a33cabe9699b0aDouglas Gregor /// Whether this initializer list originally had a GNU array-range 1982a9c878086036de36482cc21e35a33cabe9699b0aDouglas Gregor /// designator in it. This is a temporary marker used by CodeGen. 1983a9c878086036de36482cc21e35a33cabe9699b0aDouglas Gregor bool HadArrayRangeDesignator; 1984a9c878086036de36482cc21e35a33cabe9699b0aDouglas Gregor 198566b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlssonpublic: 198666b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson InitListExpr(SourceLocation lbraceloc, Expr **initexprs, unsigned numinits, 19874c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor SourceLocation rbraceloc); 1988d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor 1989d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor /// \brief Build an empty initializer list. 1990d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor explicit InitListExpr(EmptyShell Empty) : Expr(InitListExprClass, Empty) { } 199166b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson 1992c5ae899b4bbf65488445316c63168079177db0edSteve Naroff unsigned getNumInits() const { return InitExprs.size(); } 199366b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson 199466b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson const Expr* getInit(unsigned Init) const { 1995c5ae899b4bbf65488445316c63168079177db0edSteve Naroff assert(Init < getNumInits() && "Initializer access out of range!"); 19964c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor return cast_or_null<Expr>(InitExprs[Init]); 199766b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson } 199866b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson 199966b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson Expr* getInit(unsigned Init) { 2000c5ae899b4bbf65488445316c63168079177db0edSteve Naroff assert(Init < getNumInits() && "Initializer access out of range!"); 20014c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor return cast_or_null<Expr>(InitExprs[Init]); 200266b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson } 200366b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson 20049e8925e72f53a9e2c4633b6b48e965ed01702fe4Steve Naroff void setInit(unsigned Init, Expr *expr) { 2005c5ae899b4bbf65488445316c63168079177db0edSteve Naroff assert(Init < getNumInits() && "Initializer access out of range!"); 20069e8925e72f53a9e2c4633b6b48e965ed01702fe4Steve Naroff InitExprs[Init] = expr; 20079e8925e72f53a9e2c4633b6b48e965ed01702fe4Steve Naroff } 2008c5ae899b4bbf65488445316c63168079177db0edSteve Naroff 2009fa2192042f223b5122a9e17719930f77634fd31fDouglas Gregor /// \brief Reserve space for some number of initializers. 2010fa2192042f223b5122a9e17719930f77634fd31fDouglas Gregor void reserveInits(unsigned NumInits); 2011fa2192042f223b5122a9e17719930f77634fd31fDouglas Gregor 20124c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// @brief Specify the number of initializers 20134c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// 20144c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// If there are more than @p NumInits initializers, the remaining 20154c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// initializers will be destroyed. If there are fewer than @p 20164c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// NumInits initializers, NULL expressions will be added for the 20174c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// unknown initializers. 20184c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor void resizeInits(ASTContext &Context, unsigned NumInits); 20194c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor 20204c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// @brief Updates the initializer at index @p Init with the new 20214c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// expression @p expr, and returns the old expression at that 20224c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// location. 20234c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// 20244c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// When @p Init is out of range for this initializer list, the 20254c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// initializer list will be extended with NULL expressions to 20264c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// accomodate the new entry. 20274c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor Expr *updateInit(unsigned Init, Expr *expr); 2028c5ae899b4bbf65488445316c63168079177db0edSteve Naroff 20290bb76897bedb8b747efc6523efb432fc24966118Douglas Gregor /// \brief If this initializes a union, specifies which field in the 20300bb76897bedb8b747efc6523efb432fc24966118Douglas Gregor /// union to initialize. 20310bb76897bedb8b747efc6523efb432fc24966118Douglas Gregor /// 20320bb76897bedb8b747efc6523efb432fc24966118Douglas Gregor /// Typically, this field is the first named field within the 20330bb76897bedb8b747efc6523efb432fc24966118Douglas Gregor /// union. However, a designated initializer can specify the 20340bb76897bedb8b747efc6523efb432fc24966118Douglas Gregor /// initialization of a different field within the union. 20350bb76897bedb8b747efc6523efb432fc24966118Douglas Gregor FieldDecl *getInitializedFieldInUnion() { return UnionFieldInit; } 20360bb76897bedb8b747efc6523efb432fc24966118Douglas Gregor void setInitializedFieldInUnion(FieldDecl *FD) { UnionFieldInit = FD; } 20370bb76897bedb8b747efc6523efb432fc24966118Douglas Gregor 2038c5ae899b4bbf65488445316c63168079177db0edSteve Naroff // Explicit InitListExpr's originate from source code (and have valid source 2039c5ae899b4bbf65488445316c63168079177db0edSteve Naroff // locations). Implicit InitListExpr's are created by the semantic analyzer. 2040b3eef68111ffc220e449be96da1747998c057790Douglas Gregor bool isExplicit() { 2041b3eef68111ffc220e449be96da1747998c057790Douglas Gregor return LBraceLoc.isValid() && RBraceLoc.isValid(); 2042b3eef68111ffc220e449be96da1747998c057790Douglas Gregor } 20439e8925e72f53a9e2c4633b6b48e965ed01702fe4Steve Naroff 2044d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor SourceLocation getLBraceLoc() const { return LBraceLoc; } 2045d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor void setLBraceLoc(SourceLocation Loc) { LBraceLoc = Loc; } 2046d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor SourceLocation getRBraceLoc() const { return RBraceLoc; } 204787fd703e097c27d63479cb83b687d4000a22bbb1Douglas Gregor void setRBraceLoc(SourceLocation Loc) { RBraceLoc = Loc; } 204887fd703e097c27d63479cb83b687d4000a22bbb1Douglas Gregor 20494c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// @brief Retrieve the initializer list that describes the 20504c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// syntactic form of the initializer. 20514c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// 20524c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// 20534c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor InitListExpr *getSyntacticForm() const { return SyntacticForm; } 20544c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor void setSyntacticForm(InitListExpr *Init) { SyntacticForm = Init; } 20554c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor 2056a9c878086036de36482cc21e35a33cabe9699b0aDouglas Gregor bool hadArrayRangeDesignator() const { return HadArrayRangeDesignator; } 2057d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor void sawArrayRangeDesignator(bool ARD = true) { 2058d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor HadArrayRangeDesignator = ARD; 2059a9c878086036de36482cc21e35a33cabe9699b0aDouglas Gregor } 2060a9c878086036de36482cc21e35a33cabe9699b0aDouglas Gregor 206166b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson virtual SourceRange getSourceRange() const { 206266b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson return SourceRange(LBraceLoc, RBraceLoc); 206366b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson } 206466b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson static bool classof(const Stmt *T) { 206566b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson return T->getStmtClass() == InitListExprClass; 206666b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson } 206766b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson static bool classof(const InitListExpr *) { return true; } 206866b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson 206966b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson // Iterators 207066b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson virtual child_iterator child_begin(); 207166b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson virtual child_iterator child_end(); 20726336f8dbae5145eb7b1429a8ec424c44e668f7cbTed Kremenek 20737fcfa4a9b5054bc2a3bc65093f9d2e9e67a70838Ted Kremenek typedef std::vector<Stmt *>::iterator iterator; 20747fcfa4a9b5054bc2a3bc65093f9d2e9e67a70838Ted Kremenek typedef std::vector<Stmt *>::reverse_iterator reverse_iterator; 20757fcfa4a9b5054bc2a3bc65093f9d2e9e67a70838Ted Kremenek 20767fcfa4a9b5054bc2a3bc65093f9d2e9e67a70838Ted Kremenek iterator begin() { return InitExprs.begin(); } 20777fcfa4a9b5054bc2a3bc65093f9d2e9e67a70838Ted Kremenek iterator end() { return InitExprs.end(); } 20787fcfa4a9b5054bc2a3bc65093f9d2e9e67a70838Ted Kremenek reverse_iterator rbegin() { return InitExprs.rbegin(); } 20797fcfa4a9b5054bc2a3bc65093f9d2e9e67a70838Ted Kremenek reverse_iterator rend() { return InitExprs.rend(); } 208066b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson}; 208166b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson 208205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// @brief Represents a C99 designated initializer expression. 208305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// 208405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// A designated initializer expression (C99 6.7.8) contains one or 208505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// more designators (which can be field designators, array 208605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// designators, or GNU array-range designators) followed by an 208705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// expression that initializes the field or element(s) that the 208805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// designators refer to. For example, given: 208905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// 209005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// @code 209105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// struct point { 209205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// double x; 209305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// double y; 209405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// }; 209505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// struct point ptarray[10] = { [2].y = 1.0, [2].x = 2.0, [0].x = 1.0 }; 209605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// @endcode 209705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// 209805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// The InitListExpr contains three DesignatedInitExprs, the first of 209905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// which covers @c [2].y=1.0. This DesignatedInitExpr will have two 210005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// designators, one array designator for @c [2] followed by one field 210105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// designator for @c .y. The initalization expression will be 1.0. 210205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregorclass DesignatedInitExpr : public Expr { 2103ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregorpublic: 2104ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor /// \brief Forward declaration of the Designator class. 2105ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor class Designator; 2106ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor 2107ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregorprivate: 210805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// The location of the '=' or ':' prior to the actual initializer 210905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// expression. 211005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor SourceLocation EqualOrColonLoc; 211105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 2112eeae8f072748affce25ab4064982626361293390Douglas Gregor /// Whether this designated initializer used the GNU deprecated 211305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// syntax rather than the C99 '=' syntax. 2114eeae8f072748affce25ab4064982626361293390Douglas Gregor bool GNUSyntax : 1; 211505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 211605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// The number of designators in this initializer expression. 211705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor unsigned NumDesignators : 15; 211805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 2119ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor /// \brief The designators in this designated initialization 2120ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor /// expression. 2121ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor Designator *Designators; 2122ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor 212305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// The number of subexpressions of this initializer expression, 212405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// which contains both the initializer and any additional 212505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// expressions used by array and array-range designators. 212605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor unsigned NumSubExprs : 16; 212705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 2128ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor 212905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor DesignatedInitExpr(QualType Ty, unsigned NumDesignators, 2130ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor const Designator *Designators, 2131eeae8f072748affce25ab4064982626361293390Douglas Gregor SourceLocation EqualOrColonLoc, bool GNUSyntax, 21329ea62768fca25d829d80199cf4f8cf0f4dd39251Douglas Gregor Expr **IndexExprs, unsigned NumIndexExprs, 21339ea62768fca25d829d80199cf4f8cf0f4dd39251Douglas Gregor Expr *Init); 213405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 2135d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor explicit DesignatedInitExpr(unsigned NumSubExprs) 2136d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor : Expr(DesignatedInitExprClass, EmptyShell()), 2137d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor NumDesignators(0), Designators(0), NumSubExprs(NumSubExprs) { } 2138d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor 213942602bb40aefcc2751d4078ba88aacf4d965c9bdDouglas Gregorprotected: 214042602bb40aefcc2751d4078ba88aacf4d965c9bdDouglas Gregor virtual void DoDestroy(ASTContext &C); 214142602bb40aefcc2751d4078ba88aacf4d965c9bdDouglas Gregor 214205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregorpublic: 214305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// A field designator, e.g., ".x". 214405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor struct FieldDesignator { 214505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// Refers to the field that is being initialized. The low bit 214605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// of this field determines whether this is actually a pointer 214705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// to an IdentifierInfo (if 1) or a FieldDecl (if 0). When 214805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// initially constructed, a field designator will store an 214905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// IdentifierInfo*. After semantic analysis has resolved that 215005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// name, the field designator will instead store a FieldDecl*. 215105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor uintptr_t NameOrField; 215205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 215305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// The location of the '.' in the designated initializer. 215405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor unsigned DotLoc; 215505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 215605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// The location of the field name in the designated initializer. 215705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor unsigned FieldLoc; 215805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor }; 215905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 216005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// An array or GNU array-range designator, e.g., "[9]" or "[10..15]". 216105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor struct ArrayOrRangeDesignator { 216205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// Location of the first index expression within the designated 216305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// initializer expression's list of subexpressions. 216405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor unsigned Index; 216505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// The location of the '[' starting the array range designator. 216605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor unsigned LBracketLoc; 216705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// The location of the ellipsis separating the start and end 216805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// indices. Only valid for GNU array-range designators. 216905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor unsigned EllipsisLoc; 217005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// The location of the ']' terminating the array range designator. 217105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor unsigned RBracketLoc; 217205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor }; 217305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 217405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// @brief Represents a single C99 designator. 217505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// 217605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// @todo This class is infuriatingly similar to clang::Designator, 217705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// but minor differences (storing indices vs. storing pointers) 217805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// keep us from reusing it. Try harder, later, to rectify these 217905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// differences. 218005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor class Designator { 218105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// @brief The kind of designator this describes. 218205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor enum { 218305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor FieldDesignator, 218405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor ArrayDesignator, 218505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor ArrayRangeDesignator 218605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } Kind; 218705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 218805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor union { 218905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// A field designator, e.g., ".x". 219005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor struct FieldDesignator Field; 219105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// An array or GNU array-range designator, e.g., "[9]" or "[10..15]". 219205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor struct ArrayOrRangeDesignator ArrayOrRange; 219305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor }; 219405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor friend class DesignatedInitExpr; 219505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 219605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor public: 2197ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor Designator() {} 2198ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor 219905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// @brief Initializes a field designator. 220005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor Designator(const IdentifierInfo *FieldName, SourceLocation DotLoc, 220105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor SourceLocation FieldLoc) 220205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor : Kind(FieldDesignator) { 220305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor Field.NameOrField = reinterpret_cast<uintptr_t>(FieldName) | 0x01; 220405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor Field.DotLoc = DotLoc.getRawEncoding(); 220505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor Field.FieldLoc = FieldLoc.getRawEncoding(); 220605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } 220705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 220805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// @brief Initializes an array designator. 220905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor Designator(unsigned Index, SourceLocation LBracketLoc, 221005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor SourceLocation RBracketLoc) 221105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor : Kind(ArrayDesignator) { 221205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor ArrayOrRange.Index = Index; 221305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor ArrayOrRange.LBracketLoc = LBracketLoc.getRawEncoding(); 221405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor ArrayOrRange.EllipsisLoc = SourceLocation().getRawEncoding(); 221505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor ArrayOrRange.RBracketLoc = RBracketLoc.getRawEncoding(); 221605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } 221705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 221805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// @brief Initializes a GNU array-range designator. 221905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor Designator(unsigned Index, SourceLocation LBracketLoc, 222005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor SourceLocation EllipsisLoc, SourceLocation RBracketLoc) 222105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor : Kind(ArrayRangeDesignator) { 222205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor ArrayOrRange.Index = Index; 222305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor ArrayOrRange.LBracketLoc = LBracketLoc.getRawEncoding(); 222405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor ArrayOrRange.EllipsisLoc = EllipsisLoc.getRawEncoding(); 222505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor ArrayOrRange.RBracketLoc = RBracketLoc.getRawEncoding(); 222605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } 222705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 222805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor bool isFieldDesignator() const { return Kind == FieldDesignator; } 222905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor bool isArrayDesignator() const { return Kind == ArrayDesignator; } 223005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor bool isArrayRangeDesignator() const { return Kind == ArrayRangeDesignator; } 223105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 223205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor IdentifierInfo * getFieldName(); 223305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 223405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor FieldDecl *getField() { 223505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor assert(Kind == FieldDesignator && "Only valid on a field designator"); 223605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor if (Field.NameOrField & 0x01) 223705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor return 0; 223805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor else 223905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor return reinterpret_cast<FieldDecl *>(Field.NameOrField); 224005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } 224105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 224205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor void setField(FieldDecl *FD) { 224305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor assert(Kind == FieldDesignator && "Only valid on a field designator"); 224405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor Field.NameOrField = reinterpret_cast<uintptr_t>(FD); 224505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } 224605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 224787f55cf59e82f246d8605733e9300d0c5f6830a6Douglas Gregor SourceLocation getDotLoc() const { 224887f55cf59e82f246d8605733e9300d0c5f6830a6Douglas Gregor assert(Kind == FieldDesignator && "Only valid on a field designator"); 224987f55cf59e82f246d8605733e9300d0c5f6830a6Douglas Gregor return SourceLocation::getFromRawEncoding(Field.DotLoc); 225087f55cf59e82f246d8605733e9300d0c5f6830a6Douglas Gregor } 225187f55cf59e82f246d8605733e9300d0c5f6830a6Douglas Gregor 225205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor SourceLocation getFieldLoc() const { 225305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor assert(Kind == FieldDesignator && "Only valid on a field designator"); 225405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor return SourceLocation::getFromRawEncoding(Field.FieldLoc); 225505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } 225605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 225705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor SourceLocation getLBracketLoc() const { 225805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor assert((Kind == ArrayDesignator || Kind == ArrayRangeDesignator) && 225905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor "Only valid on an array or array-range designator"); 226005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor return SourceLocation::getFromRawEncoding(ArrayOrRange.LBracketLoc); 226105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } 226205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 226305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor SourceLocation getRBracketLoc() const { 226405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor assert((Kind == ArrayDesignator || Kind == ArrayRangeDesignator) && 226505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor "Only valid on an array or array-range designator"); 226605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor return SourceLocation::getFromRawEncoding(ArrayOrRange.RBracketLoc); 226705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } 226805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 226905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor SourceLocation getEllipsisLoc() const { 227005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor assert(Kind == ArrayRangeDesignator && 227105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor "Only valid on an array-range designator"); 227205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor return SourceLocation::getFromRawEncoding(ArrayOrRange.EllipsisLoc); 227305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } 22744c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor 2275d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor unsigned getFirstExprIndex() const { 2276d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor assert((Kind == ArrayDesignator || Kind == ArrayRangeDesignator) && 2277d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor "Only valid on an array or array-range designator"); 2278d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor return ArrayOrRange.Index; 2279d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor } 2280d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor 22814c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor SourceLocation getStartLocation() const { 22824c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor if (Kind == FieldDesignator) 22834c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor return getDotLoc().isInvalid()? getFieldLoc() : getDotLoc(); 22844c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor else 22854c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor return getLBracketLoc(); 22864c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor } 228705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor }; 228805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 228905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor static DesignatedInitExpr *Create(ASTContext &C, Designator *Designators, 229005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor unsigned NumDesignators, 229105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor Expr **IndexExprs, unsigned NumIndexExprs, 229205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor SourceLocation EqualOrColonLoc, 2293eeae8f072748affce25ab4064982626361293390Douglas Gregor bool GNUSyntax, Expr *Init); 229405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 2295d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor static DesignatedInitExpr *CreateEmpty(ASTContext &C, unsigned NumIndexExprs); 2296d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor 229705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// @brief Returns the number of designators in this initializer. 229805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor unsigned size() const { return NumDesignators; } 229905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 230005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor // Iterator access to the designators. 230105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor typedef Designator* designators_iterator; 2302ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor designators_iterator designators_begin() { return Designators; } 2303ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor designators_iterator designators_end() { 2304ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor return Designators + NumDesignators; 2305ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor } 230605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 2307711997184366d584c9c437102cae1e9d9927b986Douglas Gregor Designator *getDesignator(unsigned Idx) { return &designators_begin()[Idx]; } 2308711997184366d584c9c437102cae1e9d9927b986Douglas Gregor 2309d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor void setDesignators(const Designator *Desigs, unsigned NumDesigs); 2310d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor 231105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor Expr *getArrayIndex(const Designator& D); 231205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor Expr *getArrayRangeStart(const Designator& D); 231305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor Expr *getArrayRangeEnd(const Designator& D); 231405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 231505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// @brief Retrieve the location of the '=' that precedes the 231605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// initializer value itself, if present. 231705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor SourceLocation getEqualOrColonLoc() const { return EqualOrColonLoc; } 2318d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor void setEqualOrColonLoc(SourceLocation L) { EqualOrColonLoc = L; } 231905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 232005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// @brief Determines whether this designated initializer used the 2321eeae8f072748affce25ab4064982626361293390Douglas Gregor /// deprecated GNU syntax for designated initializers. 2322eeae8f072748affce25ab4064982626361293390Douglas Gregor bool usesGNUSyntax() const { return GNUSyntax; } 2323d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor void setGNUSyntax(bool GNU) { GNUSyntax = GNU; } 232405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 232505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// @brief Retrieve the initializer value. 232605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor Expr *getInit() const { 232705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor return cast<Expr>(*const_cast<DesignatedInitExpr*>(this)->child_begin()); 232805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } 232905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 233005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor void setInit(Expr *init) { 233105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor *child_begin() = init; 233205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } 233305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 2334d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor /// \brief Retrieve the total number of subexpressions in this 2335d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor /// designated initializer expression, including the actual 2336d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor /// initialized value and any expressions that occur within array 2337d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor /// and array-range designators. 2338d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor unsigned getNumSubExprs() const { return NumSubExprs; } 2339d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor 2340d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor Expr *getSubExpr(unsigned Idx) { 2341d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor assert(Idx < NumSubExprs && "Subscript out of range"); 2342d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor char* Ptr = static_cast<char*>(static_cast<void *>(this)); 2343d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor Ptr += sizeof(DesignatedInitExpr); 2344d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor return reinterpret_cast<Expr**>(reinterpret_cast<void**>(Ptr))[Idx]; 2345d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor } 2346d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor 2347d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor void setSubExpr(unsigned Idx, Expr *E) { 2348d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor assert(Idx < NumSubExprs && "Subscript out of range"); 2349d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor char* Ptr = static_cast<char*>(static_cast<void *>(this)); 2350d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor Ptr += sizeof(DesignatedInitExpr); 2351d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor reinterpret_cast<Expr**>(reinterpret_cast<void**>(Ptr))[Idx] = E; 2352d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor } 2353d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor 2354ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor /// \brief Replaces the designator at index @p Idx with the series 2355ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor /// of designators in [First, Last). 2356ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor void ExpandDesignator(unsigned Idx, const Designator *First, 2357ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor const Designator *Last); 2358ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor 235905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor virtual SourceRange getSourceRange() const; 236005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 236105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor static bool classof(const Stmt *T) { 236205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor return T->getStmtClass() == DesignatedInitExprClass; 236305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } 236405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor static bool classof(const DesignatedInitExpr *) { return true; } 236505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 236605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor // Iterators 236705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor virtual child_iterator child_begin(); 23683498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor virtual child_iterator child_end(); 23693498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor}; 23703498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor 23713498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor/// \brief Represents an implicitly-generated value initialization of 23723498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor/// an object of a given type. 23733498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor/// 23741a51b4a11b7db25cac2134249711ecaaf9d1c0a8Douglas Gregor/// Implicit value initializations occur within semantic initializer 23751a51b4a11b7db25cac2134249711ecaaf9d1c0a8Douglas Gregor/// list expressions (InitListExpr) as placeholders for subobject 23763498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor/// initializations not explicitly specified by the user. 23771a51b4a11b7db25cac2134249711ecaaf9d1c0a8Douglas Gregor/// 23781a51b4a11b7db25cac2134249711ecaaf9d1c0a8Douglas Gregor/// \see InitListExpr 23793498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregorclass ImplicitValueInitExpr : public Expr { 23803498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregorpublic: 23813498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor explicit ImplicitValueInitExpr(QualType ty) 23823498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor : Expr(ImplicitValueInitExprClass, ty) { } 23833498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor 2384d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor /// \brief Construct an empty implicit value initialization. 2385d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor explicit ImplicitValueInitExpr(EmptyShell Empty) 2386d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor : Expr(ImplicitValueInitExprClass, Empty) { } 2387d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor 23883498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor static bool classof(const Stmt *T) { 23893498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor return T->getStmtClass() == ImplicitValueInitExprClass; 23903498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor } 23913498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor static bool classof(const ImplicitValueInitExpr *) { return true; } 23923498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor 23933498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor virtual SourceRange getSourceRange() const { 23943498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor return SourceRange(); 23953498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor } 23963498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor 23973498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor // Iterators 23983498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor virtual child_iterator child_begin(); 239905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor virtual child_iterator child_end(); 240005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor}; 240105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 24022ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman 24032ef13e5abef0570a9f567b4671367275c05d4d34Nate Begemanclass ParenListExpr : public Expr { 24042ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman Stmt **Exprs; 24052ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman unsigned NumExprs; 24062ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman SourceLocation LParenLoc, RParenLoc; 24072ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman 24082ef13e5abef0570a9f567b4671367275c05d4d34Nate Begemanprotected: 24092ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman virtual void DoDestroy(ASTContext& C); 24102ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman 24112ef13e5abef0570a9f567b4671367275c05d4d34Nate Begemanpublic: 24122ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman ParenListExpr(ASTContext& C, SourceLocation lparenloc, Expr **exprs, 24132ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman unsigned numexprs, SourceLocation rparenloc); 24142ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman 24152ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman ~ParenListExpr() {} 24162ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman 24172ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman /// \brief Build an empty paren list. 24182ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman //explicit ParenListExpr(EmptyShell Empty) : Expr(ParenListExprClass, Empty) { } 24192ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman 24202ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman unsigned getNumExprs() const { return NumExprs; } 24212ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman 24222ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman const Expr* getExpr(unsigned Init) const { 24232ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman assert(Init < getNumExprs() && "Initializer access out of range!"); 24242ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman return cast_or_null<Expr>(Exprs[Init]); 24252ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman } 24262ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman 24272ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman Expr* getExpr(unsigned Init) { 24282ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman assert(Init < getNumExprs() && "Initializer access out of range!"); 24292ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman return cast_or_null<Expr>(Exprs[Init]); 24302ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman } 24312ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman 24322ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman SourceLocation getLParenLoc() const { return LParenLoc; } 24332ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman SourceLocation getRParenLoc() const { return RParenLoc; } 24342ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman 24352ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman virtual SourceRange getSourceRange() const { 24362ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman return SourceRange(LParenLoc, RParenLoc); 24372ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman } 24382ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman static bool classof(const Stmt *T) { 24392ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman return T->getStmtClass() == ParenListExprClass; 24402ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman } 24412ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman static bool classof(const ParenListExpr *) { return true; } 24422ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman 24432ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman // Iterators 24442ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman virtual child_iterator child_begin(); 24452ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman virtual child_iterator child_end(); 24462ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman}; 24472ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman 24482ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman 24494eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff//===----------------------------------------------------------------------===// 24504eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff// Clang Extensions 24514eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff//===----------------------------------------------------------------------===// 24524eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff 2453a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner 2454a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner/// ExtVectorElementExpr - This represents access to specific elements of a 2455a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner/// vector, and may occur on the left hand side or right hand side. For example 2456a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner/// the following is legal: "V.xy = V.zw" if V is a 4 element extended vector. 2457a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner/// 245873525de7fd9bdd534382dc89a24f1f76db3e04b9Chris Lattner/// Note that the base may have either vector or pointer to vector type, just 245973525de7fd9bdd534382dc89a24f1f76db3e04b9Chris Lattner/// like a struct field reference. 246073525de7fd9bdd534382dc89a24f1f76db3e04b9Chris Lattner/// 2461a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattnerclass ExtVectorElementExpr : public Expr { 2462a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner Stmt *Base; 2463d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor IdentifierInfo *Accessor; 2464a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner SourceLocation AccessorLoc; 2465a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattnerpublic: 2466a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner ExtVectorElementExpr(QualType ty, Expr *base, IdentifierInfo &accessor, 2467a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner SourceLocation loc) 2468a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner : Expr(ExtVectorElementExprClass, ty), 2469d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor Base(base), Accessor(&accessor), AccessorLoc(loc) {} 2470a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner 2471d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor /// \brief Build an empty vector element expression. 2472d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor explicit ExtVectorElementExpr(EmptyShell Empty) 2473d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor : Expr(ExtVectorElementExprClass, Empty) { } 2474d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor 2475a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner const Expr *getBase() const { return cast<Expr>(Base); } 2476a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner Expr *getBase() { return cast<Expr>(Base); } 2477d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor void setBase(Expr *E) { Base = E; } 2478d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor 2479d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor IdentifierInfo &getAccessor() const { return *Accessor; } 2480d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor void setAccessor(IdentifierInfo *II) { Accessor = II; } 2481d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor 2482d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor SourceLocation getAccessorLoc() const { return AccessorLoc; } 2483d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor void setAccessorLoc(SourceLocation L) { AccessorLoc = L; } 2484d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor 2485a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner /// getNumElements - Get the number of components being selected. 2486a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner unsigned getNumElements() const; 2487a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner 2488a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner /// containsDuplicateElements - Return true if any element access is 2489a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner /// repeated. 2490a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner bool containsDuplicateElements() const; 2491a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner 2492a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner /// getEncodedElementAccess - Encode the elements accessed into an llvm 2493a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner /// aggregate Constant of ConstantInt(s). 2494a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner void getEncodedElementAccess(llvm::SmallVectorImpl<unsigned> &Elts) const; 2495a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner 2496a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner virtual SourceRange getSourceRange() const { 2497a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner return SourceRange(getBase()->getLocStart(), AccessorLoc); 2498a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner } 2499a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner 25002140e904dbe53657339cb5b1cc13de563ca0d1fcChris Lattner /// isArrow - Return true if the base expression is a pointer to vector, 25012140e904dbe53657339cb5b1cc13de563ca0d1fcChris Lattner /// return false if the base expression is a vector. 25022140e904dbe53657339cb5b1cc13de563ca0d1fcChris Lattner bool isArrow() const; 25032140e904dbe53657339cb5b1cc13de563ca0d1fcChris Lattner 2504a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner static bool classof(const Stmt *T) { 2505a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner return T->getStmtClass() == ExtVectorElementExprClass; 2506a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner } 2507a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner static bool classof(const ExtVectorElementExpr *) { return true; } 2508a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner 2509a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner // Iterators 2510a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner virtual child_iterator child_begin(); 2511a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner virtual child_iterator child_end(); 2512a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner}; 2513a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner 2514a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner 251556ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroff/// BlockExpr - Adaptor class for mixing a BlockDecl with expressions. 25169c3c902835ef7d37300463ad47176ec21a67dc8bSteve Naroff/// ^{ statement-body } or ^(int arg1, float arg2){ statement-body } 25174eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroffclass BlockExpr : public Expr { 251856ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroffprotected: 251956ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroff BlockDecl *TheBlock; 2520b83d287bc7f47d36fb0751a481e2ef9308b37252Mike Stump bool HasBlockDeclRefExprs; 25214eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroffpublic: 2522b83d287bc7f47d36fb0751a481e2ef9308b37252Mike Stump BlockExpr(BlockDecl *BD, QualType ty, bool hasBlockDeclRefExprs) 2523b83d287bc7f47d36fb0751a481e2ef9308b37252Mike Stump : Expr(BlockExprClass, ty), 2524b83d287bc7f47d36fb0751a481e2ef9308b37252Mike Stump TheBlock(BD), HasBlockDeclRefExprs(hasBlockDeclRefExprs) {} 25259c3c902835ef7d37300463ad47176ec21a67dc8bSteve Naroff 252684af7c27cdc615ff917a501d61256b4049383c97Douglas Gregor /// \brief Build an empty block expression. 252784af7c27cdc615ff917a501d61256b4049383c97Douglas Gregor explicit BlockExpr(EmptyShell Empty) : Expr(BlockExprClass, Empty) { } 252884af7c27cdc615ff917a501d61256b4049383c97Douglas Gregor 2529d5cab5435371b8cc74a9e05ebd40b5995ebad149Anders Carlsson const BlockDecl *getBlockDecl() const { return TheBlock; } 253056ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroff BlockDecl *getBlockDecl() { return TheBlock; } 253184af7c27cdc615ff917a501d61256b4049383c97Douglas Gregor void setBlockDecl(BlockDecl *BD) { TheBlock = BD; } 253284af7c27cdc615ff917a501d61256b4049383c97Douglas Gregor 253356ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroff // Convenience functions for probing the underlying BlockDecl. 253456ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroff SourceLocation getCaretLocation() const; 253556ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroff const Stmt *getBody() const; 253656ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroff Stmt *getBody(); 25379c3c902835ef7d37300463ad47176ec21a67dc8bSteve Naroff 25389c3c902835ef7d37300463ad47176ec21a67dc8bSteve Naroff virtual SourceRange getSourceRange() const { 253956ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroff return SourceRange(getCaretLocation(), getBody()->getLocEnd()); 25409c3c902835ef7d37300463ad47176ec21a67dc8bSteve Naroff } 25419c3c902835ef7d37300463ad47176ec21a67dc8bSteve Naroff 254256ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroff /// getFunctionType - Return the underlying function type for this block. 254356ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroff const FunctionType *getFunctionType() const; 254456ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroff 2545b83d287bc7f47d36fb0751a481e2ef9308b37252Mike Stump /// hasBlockDeclRefExprs - Return true iff the block has BlockDeclRefExpr 25465b54b88c4082bb81b8b341b622fda9a85cbd5fadChris Lattner /// inside of the block that reference values outside the block. 2547b83d287bc7f47d36fb0751a481e2ef9308b37252Mike Stump bool hasBlockDeclRefExprs() const { return HasBlockDeclRefExprs; } 254884af7c27cdc615ff917a501d61256b4049383c97Douglas Gregor void setHasBlockDeclRefExprs(bool BDRE) { HasBlockDeclRefExprs = BDRE; } 2549b83d287bc7f47d36fb0751a481e2ef9308b37252Mike Stump 25504eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff static bool classof(const Stmt *T) { 25519c3c902835ef7d37300463ad47176ec21a67dc8bSteve Naroff return T->getStmtClass() == BlockExprClass; 25524eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff } 25534eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff static bool classof(const BlockExpr *) { return true; } 25544eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff 25554eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff // Iterators 25564eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff virtual child_iterator child_begin(); 25574eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff virtual child_iterator child_end(); 25584eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff}; 25599c3c902835ef7d37300463ad47176ec21a67dc8bSteve Naroff 25604eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff/// BlockDeclRefExpr - A reference to a declared variable, function, 25614eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff/// enum, etc. 25624eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroffclass BlockDeclRefExpr : public Expr { 25634eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff ValueDecl *D; 25644eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff SourceLocation Loc; 25657d5c74ecbbd8719436c071f38657bc8e97ee4a24Fariborz Jahanian bool IsByRef : 1; 25667d5c74ecbbd8719436c071f38657bc8e97ee4a24Fariborz Jahanian bool ConstQualAdded : 1; 25674eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroffpublic: 25687d5c74ecbbd8719436c071f38657bc8e97ee4a24Fariborz Jahanian BlockDeclRefExpr(ValueDecl *d, QualType t, SourceLocation l, bool ByRef, 25697d5c74ecbbd8719436c071f38657bc8e97ee4a24Fariborz Jahanian bool constAdded = false) : 25707d5c74ecbbd8719436c071f38657bc8e97ee4a24Fariborz Jahanian Expr(BlockDeclRefExprClass, t), D(d), Loc(l), IsByRef(ByRef), 25717d5c74ecbbd8719436c071f38657bc8e97ee4a24Fariborz Jahanian ConstQualAdded(constAdded) {} 257294cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor 257394cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor // \brief Build an empty reference to a declared variable in a 257494cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor // block. 257594cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor explicit BlockDeclRefExpr(EmptyShell Empty) 257694cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor : Expr(BlockDeclRefExprClass, Empty) { } 25774eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff 25784eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff ValueDecl *getDecl() { return D; } 25794eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff const ValueDecl *getDecl() const { return D; } 258094cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor void setDecl(ValueDecl *VD) { D = VD; } 258194cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor 258294cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor SourceLocation getLocation() const { return Loc; } 258394cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor void setLocation(SourceLocation L) { Loc = L; } 258494cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor 25854eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff virtual SourceRange getSourceRange() const { return SourceRange(Loc); } 25864eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff 25874eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff bool isByRef() const { return IsByRef; } 258894cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor void setByRef(bool BR) { IsByRef = BR; } 25897d5c74ecbbd8719436c071f38657bc8e97ee4a24Fariborz Jahanian 25907d5c74ecbbd8719436c071f38657bc8e97ee4a24Fariborz Jahanian bool isConstQualAdded() const { return ConstQualAdded; } 25917d5c74ecbbd8719436c071f38657bc8e97ee4a24Fariborz Jahanian void setConstQualAdded(bool C) { ConstQualAdded = C; } 259294cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor 25934eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff static bool classof(const Stmt *T) { 25944eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff return T->getStmtClass() == BlockDeclRefExprClass; 25954eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff } 25964eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff static bool classof(const BlockDeclRefExpr *) { return true; } 25974eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff 25984eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff // Iterators 25994eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff virtual child_iterator child_begin(); 26004eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff virtual child_iterator child_end(); 26014eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff}; 26024eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff 26035f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} // end namespace clang 26045f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 26055f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer#endif 2606