Expr.h revision b648023da23e8b227cdda57a241db4c6f368726b
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" 23b648023da23e8b227cdda57a241db4c6f368726bDaniel Dunbar#include "llvm/ADT/StringRef.h" 24c5ae899b4bbf65488445316c63168079177db0edSteve Naroff#include <vector> 255f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 265f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencernamespace clang { 27590b6646ef747d2f7b42e5f40487ff07642d7b6fChris Lattner class ASTContext; 28c44eec6dd29ee9415cbd38a35deff4c8b67abb6aAnders Carlsson class APValue; 29c4a1dea2dc56bd1357ec91b829a0b9e68229a13eDaniel Dunbar class Decl; 30c4a1dea2dc56bd1357ec91b829a0b9e68229a13eDaniel Dunbar class IdentifierInfo; 31c4a1dea2dc56bd1357ec91b829a0b9e68229a13eDaniel Dunbar class ParmVarDecl; 328e9bebdea69c590dedfbf27374114cb76fe12fbdDouglas Gregor class NamedDecl; 33c4a1dea2dc56bd1357ec91b829a0b9e68229a13eDaniel Dunbar class ValueDecl; 3456ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroff class BlockDecl; 3588a3514f36de96b19cdf50141c640df1a5f13f6cDouglas Gregor class CXXOperatorCallExpr; 3688a3514f36de96b19cdf50141c640df1a5f13f6cDouglas Gregor class CXXMemberCallExpr; 3788a3514f36de96b19cdf50141c640df1a5f13f6cDouglas Gregor 385f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// Expr - This represents one expression. Note that Expr's are subclasses of 395f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// Stmt. This allows an expression to be transparently used any place a Stmt 405f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// is required. 415f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 425f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass Expr : public Stmt { 435f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer QualType TR; 44898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor 459ea62768fca25d829d80199cf4f8cf0f4dd39251Douglas Gregorprotected: 461eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /// TypeDependent - Whether this expression is type-dependent 47898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// (C++ [temp.dep.expr]). 48898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor bool TypeDependent : 1; 49898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor 501eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /// ValueDependent - Whether this expression is value-dependent 51898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// (C++ [temp.dep.constexpr]). 52898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor bool ValueDependent : 1; 53898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor 54898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // FIXME: Eventually, this constructor should go away and we should 55898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // require every subclass to provide type/value-dependence 56898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // information. 571eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump Expr(StmtClass SC, QualType T) 58b3eef68111ffc220e449be96da1747998c057790Douglas Gregor : Stmt(SC), TypeDependent(false), ValueDependent(false) { 591eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump setType(T); 6083233a4b7c2bc7b531ffa3b33fdd1cd8138373b6Douglas Gregor } 61898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor 62898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor Expr(StmtClass SC, QualType T, bool TD, bool VD) 63b3eef68111ffc220e449be96da1747998c057790Douglas Gregor : Stmt(SC), TypeDependent(TD), ValueDependent(VD) { 64898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor setType(T); 65898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor } 66898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor 670b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor /// \brief Construct an empty expression. 680b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor explicit Expr(StmtClass SC, EmptyShell) : Stmt(SC) { } 690b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor 701eb4433ac451dc16f4133a88af2d002ac26c58efMike Stumppublic: 7143d9d9243329b1b75d1a6efdad9f16d6fb386b8eDouglas Gregor /// \brief Increases the reference count for this expression. 7243d9d9243329b1b75d1a6efdad9f16d6fb386b8eDouglas Gregor /// 7343d9d9243329b1b75d1a6efdad9f16d6fb386b8eDouglas Gregor /// Invoke the Retain() operation when this expression 7443d9d9243329b1b75d1a6efdad9f16d6fb386b8eDouglas Gregor /// is being shared by another owner. 7543d9d9243329b1b75d1a6efdad9f16d6fb386b8eDouglas Gregor Expr *Retain() { 7643d9d9243329b1b75d1a6efdad9f16d6fb386b8eDouglas Gregor Stmt::Retain(); 7743d9d9243329b1b75d1a6efdad9f16d6fb386b8eDouglas Gregor return this; 7843d9d9243329b1b75d1a6efdad9f16d6fb386b8eDouglas Gregor } 791eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 80f7c2aa0b049272d8f318988c1965760dcb852578Douglas Gregor QualType getType() const { return TR; } 811eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump void setType(QualType t) { 829d293dfc0ad7c44ae0b5eb9517f1ed8c8d8b7ff7Douglas Gregor // In C++, the type of an expression is always adjusted so that it 839d293dfc0ad7c44ae0b5eb9517f1ed8c8d8b7ff7Douglas Gregor // will not have reference type an expression will never have 849d293dfc0ad7c44ae0b5eb9517f1ed8c8d8b7ff7Douglas Gregor // reference type (C++ [expr]p6). Use 859d293dfc0ad7c44ae0b5eb9517f1ed8c8d8b7ff7Douglas Gregor // QualType::getNonReferenceType() to retrieve the non-reference 869d293dfc0ad7c44ae0b5eb9517f1ed8c8d8b7ff7Douglas Gregor // type. Additionally, inspect Expr::isLvalue to determine whether 879d293dfc0ad7c44ae0b5eb9517f1ed8c8d8b7ff7Douglas Gregor // an expression that is adjusted in this manner should be 889d293dfc0ad7c44ae0b5eb9517f1ed8c8d8b7ff7Douglas Gregor // considered an lvalue. 891eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump assert((TR.isNull() || !TR->isReferenceType()) && 908320aaaa01d931aa234fc3bce05b399ef41898d5Daniel Dunbar "Expressions can't have reference type"); 91f7c2aa0b049272d8f318988c1965760dcb852578Douglas Gregor 921eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump TR = t; 939d293dfc0ad7c44ae0b5eb9517f1ed8c8d8b7ff7Douglas Gregor } 9477ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek 95898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// isValueDependent - Determines whether this expression is 96898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// value-dependent (C++ [temp.dep.constexpr]). For example, the 97898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// array bound of "Chars" in the following example is 981eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /// value-dependent. 99898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// @code 100898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// template<int Size, char (&Chars)[Size]> struct meta_string; 101898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// @endcode 102898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor bool isValueDependent() const { return ValueDependent; } 103898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor 1040b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor /// \brief Set whether this expression is value-dependent or not. 1050b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor void setValueDependent(bool VD) { ValueDependent = VD; } 1060b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor 107898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// isTypeDependent - Determines whether this expression is 108898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// type-dependent (C++ [temp.dep.expr]), which means that its type 109898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// could change from one template instantiation to the next. For 110898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// example, the expressions "x" and "x + y" are type-dependent in 111898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// the following code, but "y" is not type-dependent: 112898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// @code 1131eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /// template<typename T> 114898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// void add(T x, int y) { 115898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// x + y; 116898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// } 117898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// @endcode 118898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor bool isTypeDependent() const { return TypeDependent; } 119898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor 1200b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor /// \brief Set whether this expression is type-dependent or not. 1210b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor void setTypeDependent(bool TD) { TypeDependent = TD; } 1220b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor 1235f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// SourceLocation tokens are not useful in isolation - they are low level 1245f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// value objects created/interpreted by SourceManager. We assume AST 1255f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// clients will have a pointer to the respective SourceManager. 1265f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer virtual SourceRange getSourceRange() const = 0; 1275f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1285f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// getExprLoc - Return the preferred location for the arrow when diagnosing 1295f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// a problem with a generic expression. 1305f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer virtual SourceLocation getExprLoc() const { return getLocStart(); } 1311eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 132026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner /// isUnusedResultAWarning - Return true if this immediate expression should 133026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner /// be warned about if the result is unused. If so, fill in Loc and Ranges 134026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner /// with location to warn on and the source range[s] to report with the 135026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner /// warning. 136026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner bool isUnusedResultAWarning(SourceLocation &Loc, SourceRange &R1, 13740b598eea1310ec9ed554d56ce3e25b34c585458Argyrios Kyrtzidis SourceRange &R2) const; 1381eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1395f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// isLvalue - C99 6.3.2.1: an lvalue is an expression with an object type or 1405f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// incomplete type other than void. Nonarray expressions that can be lvalues: 1415f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// - name, where name must be a variable 1425f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// - e[i] 1435f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// - (e), where e must be an lvalue 1445f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// - e.name, where e must be an lvalue 1455f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// - e->name 1465f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// - *e, the type of e cannot be a function type 1475f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// - string-constant 14808ad47cbd1f81fcb31dbc731c13b885a07e12704Bill Wendling /// - reference type [C++ [expr]] 14976458501a8963fa11b91c9337a487de6871169b4Sebastian Redl /// - b ? x : y, where x and y are lvalues of suitable types [C++] 1505f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// 1515f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer enum isLvalueResult { 1525f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer LV_Valid, 1535f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer LV_NotObjectType, 1545f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer LV_IncompleteVoidType, 155fec0b49c3fa621fbf63e420f3d54a5bb3a0265d2Steve Naroff LV_DuplicateVectorComponents, 15686f194083504938df72135b5b66bf0c5cafd9498Douglas Gregor LV_InvalidExpression, 15786f194083504938df72135b5b66bf0c5cafd9498Douglas Gregor LV_MemberFunction 1585f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer }; 15928be73f74c9e241a23ea24fe5756623de6bf1084Chris Lattner isLvalueResult isLvalue(ASTContext &Ctx) const; 16053202857c60214d80950a975e6e52aebf30bd16aEli Friedman 16153202857c60214d80950a975e6e52aebf30bd16aEli Friedman // Same as above, but excluding checks for non-object and void types in C 16253202857c60214d80950a975e6e52aebf30bd16aEli Friedman isLvalueResult isLvalueInternal(ASTContext &Ctx) const; 1631eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1645f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// isModifiableLvalue - C99 6.3.2.1: an lvalue that does not have array type, 1655f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// does not have an incomplete type, does not have a const-qualified type, 1661eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /// and if it is a structure or union, does not have any member (including, 1675f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// recursively, any member or element of all contained aggregates or unions) 1685f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// with a const-qualified type. 16944e35f7b2b5da1eb338639e46bf0b5522e75c5f3Daniel Dunbar /// 17044e35f7b2b5da1eb338639e46bf0b5522e75c5f3Daniel Dunbar /// \param Loc [in] [out] - A source location which *may* be filled 17144e35f7b2b5da1eb338639e46bf0b5522e75c5f3Daniel Dunbar /// in with the location of the expression making this a 17244e35f7b2b5da1eb338639e46bf0b5522e75c5f3Daniel Dunbar /// non-modifiable lvalue, if specified. 1735f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer enum isModifiableLvalueResult { 1745f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer MLV_Valid, 1755f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer MLV_NotObjectType, 1765f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer MLV_IncompleteVoidType, 177fec0b49c3fa621fbf63e420f3d54a5bb3a0265d2Steve Naroff MLV_DuplicateVectorComponents, 1785f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer MLV_InvalidExpression, 179ca354faa7e9b99af17070c82b9662a5fca76422cChris Lattner MLV_LValueCast, // Specialized form of MLV_InvalidExpression. 1805f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer MLV_IncompleteType, 1815f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer MLV_ConstQualified, 1824f6a7d7ead09b439216c32f2de806a998aeb222aSteve Naroff MLV_ArrayType, 1835daf570d0ce027e18ed5f9d66e6b2a14a40b720dFariborz Jahanian MLV_NotBlockQualified, 184ba8d2d684e74a20bef03828c21c991d222c7e9e5Fariborz Jahanian MLV_ReadonlyProperty, 18586f194083504938df72135b5b66bf0c5cafd9498Douglas Gregor MLV_NoSetterProperty, 18686f194083504938df72135b5b66bf0c5cafd9498Douglas Gregor MLV_MemberFunction 1875f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer }; 18844e35f7b2b5da1eb338639e46bf0b5522e75c5f3Daniel Dunbar isModifiableLvalueResult isModifiableLvalue(ASTContext &Ctx, 18944e35f7b2b5da1eb338639e46bf0b5522e75c5f3Daniel Dunbar SourceLocation *Loc = 0) const; 1901eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 19133bbbc5ec8269bc2cde5b84f970fa49319a30267Douglas Gregor /// \brief If this expression refers to a bit-field, retrieve the 19233bbbc5ec8269bc2cde5b84f970fa49319a30267Douglas Gregor /// declaration of that bit-field. 19333bbbc5ec8269bc2cde5b84f970fa49319a30267Douglas Gregor FieldDecl *getBitField(); 1945f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 19538d068e8f13a119b89a3b8b0f79f35cab1ffd09aAnders Carlsson const FieldDecl *getBitField() const { 19638d068e8f13a119b89a3b8b0f79f35cab1ffd09aAnders Carlsson return const_cast<Expr*>(this)->getBitField(); 19738d068e8f13a119b89a3b8b0f79f35cab1ffd09aAnders Carlsson } 1981eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1995f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// isIntegerConstantExpr - Return true if this expression is a valid integer 2005f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// constant expression, and, if so, return its value in Result. If not a 2015f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// valid i-c-e, return false and fill in Loc (if specified) with the location 2025f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// of the invalid expression. 203590b6646ef747d2f7b42e5f40487ff07642d7b6fChris Lattner bool isIntegerConstantExpr(llvm::APSInt &Result, ASTContext &Ctx, 204590b6646ef747d2f7b42e5f40487ff07642d7b6fChris Lattner SourceLocation *Loc = 0, 2055f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool isEvaluated = true) const; 206590b6646ef747d2f7b42e5f40487ff07642d7b6fChris Lattner bool isIntegerConstantExpr(ASTContext &Ctx, SourceLocation *Loc = 0) const { 2078070a8497c0fb3e6f70a557f788405d8945b1208Daniel Dunbar llvm::APSInt X; 208590b6646ef747d2f7b42e5f40487ff07642d7b6fChris Lattner return isIntegerConstantExpr(X, Ctx, Loc); 2095f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 210c9e8f606787b0bc0c3b08e566b87cc1751694168Eli Friedman /// isConstantInitializer - Returns true if this expression is a constant 211c9e8f606787b0bc0c3b08e566b87cc1751694168Eli Friedman /// initializer, which can be emitted at compile-time. 212c9e8f606787b0bc0c3b08e566b87cc1751694168Eli Friedman bool isConstantInitializer(ASTContext &Ctx) const; 2131eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 21494deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson /// EvalResult is a struct with detailed info about an evaluated expression. 21594deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson struct EvalResult { 2162d6744ff04c1690a1485178d550d2fab84a0270bDaniel Dunbar /// Val - This is the value the expression can be folded to. 21794deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson APValue Val; 2181eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 21994deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson /// HasSideEffects - Whether the evaluated expression has side effects. 22094deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson /// For example, (f() && 0) can be folded, but it still has side effects. 22194deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson bool HasSideEffects; 2221eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 22394deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson /// Diag - If the expression is unfoldable, then Diag contains a note 22494deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson /// diagnostic indicating why it's not foldable. DiagLoc indicates a caret 22594deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson /// position for the error, and DiagExpr is the expression that caused 22694deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson /// the error. 22794deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson /// If the expression is foldable, but not an integer constant expression, 22894deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson /// Diag contains a note diagnostic that describes why it isn't an integer 22994deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson /// constant expression. If the expression *is* an integer constant 23094deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson /// expression, then Diag will be zero. 23194deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson unsigned Diag; 23294deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson const Expr *DiagExpr; 23394deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson SourceLocation DiagLoc; 2341eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 23594deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson EvalResult() : HasSideEffects(false), Diag(0), DiagExpr(0) {} 23694deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson }; 23794deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson 2386ee7aa154e8bbb21a21254293410b944f78b0bfeChris Lattner /// Evaluate - Return true if this is a constant which we can fold using 239019f4e858e78587f2241ff1a76c747d7bcd7578cChris Lattner /// any crazy technique (that has nothing to do with language standards) that 240019f4e858e78587f2241ff1a76c747d7bcd7578cChris Lattner /// we want to. If this function returns true, it returns the folded constant 241019f4e858e78587f2241ff1a76c747d7bcd7578cChris Lattner /// in Result. 2425b45d4ef1ea3f04ec863daf8aa29be6c6e021750Anders Carlsson bool Evaluate(EvalResult &Result, ASTContext &Ctx) const; 2435b45d4ef1ea3f04ec863daf8aa29be6c6e021750Anders Carlsson 2446ee7aa154e8bbb21a21254293410b944f78b0bfeChris Lattner /// isEvaluatable - Call Evaluate to see if this expression can be constant 24545b6b9d080ac56917337d73d8f1cd6374b27b05dChris Lattner /// folded, but discard the result. 24645b6b9d080ac56917337d73d8f1cd6374b27b05dChris Lattner bool isEvaluatable(ASTContext &Ctx) const; 247c44eec6dd29ee9415cbd38a35deff4c8b67abb6aAnders Carlsson 24851fe996231b1d7199f76e4005ff4c943d5deeecdAnders Carlsson /// EvaluateAsInt - Call Evaluate and return the folded integer. This 24951fe996231b1d7199f76e4005ff4c943d5deeecdAnders Carlsson /// must be called on an expression that constant folds to an integer. 25051fe996231b1d7199f76e4005ff4c943d5deeecdAnders Carlsson llvm::APSInt EvaluateAsInt(ASTContext &Ctx) const; 25151fe996231b1d7199f76e4005ff4c943d5deeecdAnders Carlsson 252b2f295c8050fb8c141bf2cf38eed0a56e99d0092Eli Friedman /// EvaluateAsLValue - Evaluate an expression to see if it's a lvalue 253b2f295c8050fb8c141bf2cf38eed0a56e99d0092Eli Friedman /// with link time known address. 2541b78276a75a5a0f496a82429c1ff9604d622a76dAnders Carlsson bool EvaluateAsLValue(EvalResult &Result, ASTContext &Ctx) const; 2551b78276a75a5a0f496a82429c1ff9604d622a76dAnders Carlsson 256b2f295c8050fb8c141bf2cf38eed0a56e99d0092Eli Friedman /// EvaluateAsAnyLValue - The same as EvaluateAsLValue, except that it 257b2f295c8050fb8c141bf2cf38eed0a56e99d0092Eli Friedman /// also succeeds on stack based, immutable address lvalues. 258b2f295c8050fb8c141bf2cf38eed0a56e99d0092Eli Friedman bool EvaluateAsAnyLValue(EvalResult &Result, ASTContext &Ctx) const; 259b2f295c8050fb8c141bf2cf38eed0a56e99d0092Eli Friedman 260efa9b3877ef298bcb792600ac33521827e1f7fafAnders Carlsson /// isNullPointerConstant - C99 6.3.2.3p3 - Return true if this is either an 261efa9b3877ef298bcb792600ac33521827e1f7fafAnders Carlsson /// integer constant expression with the value zero, or if this is one that is 262efa9b3877ef298bcb792600ac33521827e1f7fafAnders Carlsson /// cast to void*. 263efa9b3877ef298bcb792600ac33521827e1f7fafAnders Carlsson bool isNullPointerConstant(ASTContext &Ctx) const; 264efa9b3877ef298bcb792600ac33521827e1f7fafAnders Carlsson 26544baa8abba2a1552b6b50bf750a8750ab9da9f76Fariborz Jahanian /// isOBJCGCCandidate - Return true if this expression may be used in a read/ 2661eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /// write barrier. 267102e390bcb5a1fb1a8fdbc8505e6dfd905374bbdFariborz Jahanian bool isOBJCGCCandidate(ASTContext &Ctx) const; 2681eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2694e99a5fc3b203397a91136c6e695e405fb8fc606Ted Kremenek /// IgnoreParens - Ignore parentheses. If this Expr is a ParenExpr, return 2701eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /// its subexpression. If that subexpression is also a ParenExpr, 2714e99a5fc3b203397a91136c6e695e405fb8fc606Ted Kremenek /// then this method recursively returns its subexpression, and so forth. 2724e99a5fc3b203397a91136c6e695e405fb8fc606Ted Kremenek /// Otherwise, the method returns the current Expr. 2734e99a5fc3b203397a91136c6e695e405fb8fc606Ted Kremenek Expr* IgnoreParens(); 27456f349400c5932a196509c0480ff6f99a9a0b48fChris Lattner 27556f349400c5932a196509c0480ff6f99a9a0b48fChris Lattner /// IgnoreParenCasts - Ignore parentheses and casts. Strip off any ParenExpr 27627c8dc06f65d7abcf6a7e7f64a7960c9a150ca01Douglas Gregor /// or CastExprs, returning their operand. 27756f349400c5932a196509c0480ff6f99a9a0b48fChris Lattner Expr *IgnoreParenCasts(); 2781eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 279ecdd84147c0765caa999ddc22dde25b42712bb4dChris Lattner /// IgnoreParenNoopCasts - Ignore parentheses and casts that do not change the 280ecdd84147c0765caa999ddc22dde25b42712bb4dChris Lattner /// value (including ptr->int casts of the same size). Strip off any 281ecdd84147c0765caa999ddc22dde25b42712bb4dChris Lattner /// ParenExpr or CastExprs, returning their operand. 282ecdd84147c0765caa999ddc22dde25b42712bb4dChris Lattner Expr *IgnoreParenNoopCasts(ASTContext &Ctx); 2831eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2844e99a5fc3b203397a91136c6e695e405fb8fc606Ted Kremenek const Expr* IgnoreParens() const { 2854e99a5fc3b203397a91136c6e695e405fb8fc606Ted Kremenek return const_cast<Expr*>(this)->IgnoreParens(); 2864e99a5fc3b203397a91136c6e695e405fb8fc606Ted Kremenek } 28756f349400c5932a196509c0480ff6f99a9a0b48fChris Lattner const Expr *IgnoreParenCasts() const { 28856f349400c5932a196509c0480ff6f99a9a0b48fChris Lattner return const_cast<Expr*>(this)->IgnoreParenCasts(); 28956f349400c5932a196509c0480ff6f99a9a0b48fChris Lattner } 290ecdd84147c0765caa999ddc22dde25b42712bb4dChris Lattner const Expr *IgnoreParenNoopCasts(ASTContext &Ctx) const { 291ecdd84147c0765caa999ddc22dde25b42712bb4dChris Lattner return const_cast<Expr*>(this)->IgnoreParenNoopCasts(Ctx); 292ecdd84147c0765caa999ddc22dde25b42712bb4dChris Lattner } 2931eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 294898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor static bool hasAnyTypeDependentArguments(Expr** Exprs, unsigned NumExprs); 295898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor static bool hasAnyValueDependentArguments(Expr** Exprs, unsigned NumExprs); 296898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor 2971eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 2985f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return T->getStmtClass() >= firstExprConstant && 2991eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump T->getStmtClass() <= lastExprConstant; 3005f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 3015f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const Expr *) { return true; } 3025f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 3035f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 3041eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3055549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek//===----------------------------------------------------------------------===// 3065f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// Primary Expressions. 3075f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer//===----------------------------------------------------------------------===// 3085f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 3095f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// DeclRefExpr - [C99 6.5.1p2] - A reference to a declared variable, function, 3105f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// enum, etc. 3115f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass DeclRefExpr : public Expr { 3121eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump NamedDecl *D; 3135f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation Loc; 3149e922b1663ecb95dc7eee03002fd66ed18fb3192Argyrios Kyrtzidis 3159e922b1663ecb95dc7eee03002fd66ed18fb3192Argyrios Kyrtzidisprotected: 3161a49af9681c350fef58e677f85ccb9a77e8e9d0aDouglas Gregor // FIXME: Eventually, this constructor will go away and all subclasses 3171a49af9681c350fef58e677f85ccb9a77e8e9d0aDouglas Gregor // will have to provide the type- and value-dependent flags. 3188e9bebdea69c590dedfbf27374114cb76fe12fbdDouglas Gregor DeclRefExpr(StmtClass SC, NamedDecl *d, QualType t, SourceLocation l) : 3199e922b1663ecb95dc7eee03002fd66ed18fb3192Argyrios Kyrtzidis Expr(SC, t), D(d), Loc(l) {} 3209e922b1663ecb95dc7eee03002fd66ed18fb3192Argyrios Kyrtzidis 3211a49af9681c350fef58e677f85ccb9a77e8e9d0aDouglas Gregor DeclRefExpr(StmtClass SC, NamedDecl *d, QualType t, SourceLocation l, bool TD, 3221a49af9681c350fef58e677f85ccb9a77e8e9d0aDouglas Gregor bool VD) : 3231a49af9681c350fef58e677f85ccb9a77e8e9d0aDouglas Gregor Expr(SC, t, TD, VD), D(d), Loc(l) {} 3241a49af9681c350fef58e677f85ccb9a77e8e9d0aDouglas Gregor 3255f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 326898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // FIXME: Eventually, this constructor will go away and all clients 327898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // will have to provide the type- and value-dependent flags. 3281eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump DeclRefExpr(NamedDecl *d, QualType t, SourceLocation l) : 3295f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Expr(DeclRefExprClass, t), D(d), Loc(l) {} 330898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor 3311eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump DeclRefExpr(NamedDecl *d, QualType t, SourceLocation l, bool TD, bool VD) : 332898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor Expr(DeclRefExprClass, t, TD, VD), D(d), Loc(l) {} 3331eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3340b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor /// \brief Construct an empty declaration reference expression. 3351eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump explicit DeclRefExpr(EmptyShell Empty) 3360b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor : Expr(DeclRefExprClass, Empty) { } 3370b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor 3388e9bebdea69c590dedfbf27374114cb76fe12fbdDouglas Gregor NamedDecl *getDecl() { return D; } 3398e9bebdea69c590dedfbf27374114cb76fe12fbdDouglas Gregor const NamedDecl *getDecl() const { return D; } 340904eed3f6148758d39a2d3c88f3133274460d645Douglas Gregor void setDecl(NamedDecl *NewD) { D = NewD; } 341904eed3f6148758d39a2d3c88f3133274460d645Douglas Gregor 3429e922b1663ecb95dc7eee03002fd66ed18fb3192Argyrios Kyrtzidis SourceLocation getLocation() const { return Loc; } 3430b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor void setLocation(SourceLocation L) { Loc = L; } 3445f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer virtual SourceRange getSourceRange() const { return SourceRange(Loc); } 3451eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3461eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 3479e922b1663ecb95dc7eee03002fd66ed18fb3192Argyrios Kyrtzidis return T->getStmtClass() == DeclRefExprClass || 3481a49af9681c350fef58e677f85ccb9a77e8e9d0aDouglas Gregor T->getStmtClass() == CXXConditionDeclExprClass || 3491eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump T->getStmtClass() == QualifiedDeclRefExprClass; 3505f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 3515f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const DeclRefExpr *) { return true; } 3521eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 35377ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek // Iterators 35477ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_begin(); 35577ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_end(); 3565f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 3575f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 358d9f6910f4ef37c0e8eeee2a01287d9572c3176efChris Lattner/// PredefinedExpr - [C99 6.4.2.2] - A predefined identifier such as __func__. 359d9f6910f4ef37c0e8eeee2a01287d9572c3176efChris Lattnerclass PredefinedExpr : public Expr { 360227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlssonpublic: 361227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson enum IdentType { 362227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson Func, 363227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson Function, 364cd9b46e5442a3ef17f83f75177d8545cb5b3e2b9Douglas Gregor PrettyFunction 365227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson }; 3661eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 367227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlssonprivate: 368227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson SourceLocation Loc; 369227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson IdentType Type; 370227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlssonpublic: 3711eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump PredefinedExpr(SourceLocation l, QualType type, IdentType IT) 372773f3973cf5e2b6b8788e895967dcb3c1e6ffe79Anders Carlsson : Expr(PredefinedExprClass, type, type->isDependentType(), 373773f3973cf5e2b6b8788e895967dcb3c1e6ffe79Anders Carlsson type->isDependentType()), Loc(l), Type(IT) {} 3741eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 37517fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor /// \brief Construct an empty predefined expression. 3761eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump explicit PredefinedExpr(EmptyShell Empty) 37717fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor : Expr(PredefinedExprClass, Empty) { } 37817fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor 379227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson IdentType getIdentType() const { return Type; } 38017fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor void setIdentType(IdentType IT) { Type = IT; } 38117fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor 38217fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor SourceLocation getLocation() const { return Loc; } 38317fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor void setLocation(SourceLocation L) { Loc = L; } 38417fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor 3853a082d81006e7a2e01a6e431a22e21c78490ff8fAnders Carlsson static std::string ComputeName(ASTContext &Context, IdentType IT, 3863a082d81006e7a2e01a6e431a22e21c78490ff8fAnders Carlsson const Decl *CurrentDecl); 3873a082d81006e7a2e01a6e431a22e21c78490ff8fAnders Carlsson 388227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson virtual SourceRange getSourceRange() const { return SourceRange(Loc); } 389227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson 3901eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 3911eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == PredefinedExprClass; 392227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson } 393d9f6910f4ef37c0e8eeee2a01287d9572c3176efChris Lattner static bool classof(const PredefinedExpr *) { return true; } 3941eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 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: 4041eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // 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. 4121eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 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 4241eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 4251eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == IntegerLiteralClass; 4265f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 4275f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const IntegerLiteral *) { return true; } 4281eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 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 447018d8e0596dd57401eeddcf11ac84ff0a065fbbeChris Lattner SourceLocation getLocation() const { return Loc; } 448c250aae4f645833aed3a6321bc8598f7330dce8dChris Lattner bool isWide() const { return IsWide; } 4491eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4505f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer virtual SourceRange getSourceRange() const { return SourceRange(Loc); } 4511eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 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 4581eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 4591eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 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: 4731eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump FloatingLiteral(const llvm::APFloat &V, bool isexact, 474720c4ec57b6110873cd533ad434853a27e7c3f4aTed Kremenek QualType Type, SourceLocation L) 4751eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump : Expr(FloatingLiteralClass, Type), Value(V), IsExact(isexact), Loc(L) {} 4765f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 47717fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor /// \brief Construct an empty floating-point literal. 4781eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 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; 4911eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 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. 4991eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 5005f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer virtual SourceRange getSourceRange() const { return SourceRange(Loc); } 5015f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 5021eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 5031eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == FloatingLiteralClass; 5045f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 5055f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const FloatingLiteral *) { return true; } 5061eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 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) {} 5221eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 523cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor /// \brief Build an empty imaginary literal. 5241eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 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(); } 5321eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 5331eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == ImaginaryLiteralClass; 5345d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner } 5355d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner static bool classof(const ImaginaryLiteral *) { return true; } 5361eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 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) {} 5661eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 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. 5781eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 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 587b648023da23e8b227cdda57a241db4c6f368726bDaniel Dunbar llvm::StringRef getString() const { 588b648023da23e8b227cdda57a241db4c6f368726bDaniel Dunbar return llvm::StringRef(StrData, ByteLength); 589b648023da23e8b227cdda57a241db4c6f368726bDaniel Dunbar } 590b648023da23e8b227cdda57a241db4c6f368726bDaniel Dunbar // FIXME: These are deprecated, replace with StringRef. 5915f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer const char *getStrData() const { return StrData; } 5925f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer unsigned getByteLength() const { return ByteLength; } 593673ecd6a4a9f7c12fb6f76f84f654dbdcdc89e76Douglas Gregor 594673ecd6a4a9f7c12fb6f76f84f654dbdcdc89e76Douglas Gregor /// \brief Sets the string data to the given string data. 595b648023da23e8b227cdda57a241db4c6f368726bDaniel Dunbar void setString(ASTContext &C, llvm::StringRef Str); 596673ecd6a4a9f7c12fb6f76f84f654dbdcdc89e76Douglas Gregor 5975f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool isWide() const { return IsWide; } 598673ecd6a4a9f7c12fb6f76f84f654dbdcdc89e76Douglas Gregor void setWide(bool W) { IsWide = W; } 599673ecd6a4a9f7c12fb6f76f84f654dbdcdc89e76Douglas Gregor 6008d4141f83d9de379547cf05bd75d4c6cf894b189Steve Naroff bool containsNonAsciiOrNull() const { 601b648023da23e8b227cdda57a241db4c6f368726bDaniel Dunbar llvm::StringRef Str = getString(); 602b648023da23e8b227cdda57a241db4c6f368726bDaniel Dunbar for (unsigned i = 0, e = Str.size(); i != e; ++i) 603b648023da23e8b227cdda57a241db4c6f368726bDaniel Dunbar if (!isascii(Str[i]) || !Str[i]) 60433fdb738a6c125f4c788733897021b7c1a062b0cSteve Naroff return true; 60533fdb738a6c125f4c788733897021b7c1a062b0cSteve Naroff return false; 60633fdb738a6c125f4c788733897021b7c1a062b0cSteve Naroff } 607726e168dc09fb23f53c7b004f8e919421ee91806Chris Lattner /// getNumConcatenated - Get the number of string literal tokens that were 608726e168dc09fb23f53c7b004f8e919421ee91806Chris Lattner /// concatenated in translation phase #6 to form this string literal. 609726e168dc09fb23f53c7b004f8e919421ee91806Chris Lattner unsigned getNumConcatenated() const { return NumConcatenated; } 6101eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 611726e168dc09fb23f53c7b004f8e919421ee91806Chris Lattner SourceLocation getStrTokenLoc(unsigned TokNum) const { 612726e168dc09fb23f53c7b004f8e919421ee91806Chris Lattner assert(TokNum < NumConcatenated && "Invalid tok number"); 613726e168dc09fb23f53c7b004f8e919421ee91806Chris Lattner return TokLocs[TokNum]; 614726e168dc09fb23f53c7b004f8e919421ee91806Chris Lattner } 6151eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump void setStrTokenLoc(unsigned TokNum, SourceLocation L) { 616673ecd6a4a9f7c12fb6f76f84f654dbdcdc89e76Douglas Gregor assert(TokNum < NumConcatenated && "Invalid tok number"); 617673ecd6a4a9f7c12fb6f76f84f654dbdcdc89e76Douglas Gregor TokLocs[TokNum] = L; 618673ecd6a4a9f7c12fb6f76f84f654dbdcdc89e76Douglas Gregor } 619673ecd6a4a9f7c12fb6f76f84f654dbdcdc89e76Douglas Gregor 620b137299ce5bb6c36fbba651858600857fda4dd50Chris Lattner typedef const SourceLocation *tokloc_iterator; 621b137299ce5bb6c36fbba651858600857fda4dd50Chris Lattner tokloc_iterator tokloc_begin() const { return TokLocs; } 622b137299ce5bb6c36fbba651858600857fda4dd50Chris Lattner tokloc_iterator tokloc_end() const { return TokLocs+NumConcatenated; } 6235f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 6241eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump virtual SourceRange getSourceRange() const { 6251eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return SourceRange(TokLocs[0], TokLocs[NumConcatenated-1]); 6265f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 6271eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 6281eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == StringLiteralClass; 6295f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 6305f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const StringLiteral *) { return true; } 6311eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 63277ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek // Iterators 63377ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_begin(); 63477ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_end(); 6355f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 6365f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 6375f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// ParenExpr - This represents a parethesized expression, e.g. "(1)". This 6385f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// AST node is only formed if full location information is requested. 6395f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass ParenExpr : public Expr { 6405f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation L, R; 6415549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Stmt *Val; 6425f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 6435f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ParenExpr(SourceLocation l, SourceLocation r, Expr *val) 644898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor : Expr(ParenExprClass, val->getType(), 6451eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump val->isTypeDependent(), val->isValueDependent()), 646898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor L(l), R(r), Val(val) {} 6471eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 648c04db4feefa2b0dbbc6876cb4eeeee108aa6791dDouglas Gregor /// \brief Construct an empty parenthesized expression. 6491eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump explicit ParenExpr(EmptyShell Empty) 650c04db4feefa2b0dbbc6876cb4eeeee108aa6791dDouglas Gregor : Expr(ParenExprClass, Empty) { } 651c04db4feefa2b0dbbc6876cb4eeeee108aa6791dDouglas Gregor 6525549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek const Expr *getSubExpr() const { return cast<Expr>(Val); } 6535549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getSubExpr() { return cast<Expr>(Val); } 654c04db4feefa2b0dbbc6876cb4eeeee108aa6791dDouglas Gregor void setSubExpr(Expr *E) { Val = E; } 655c04db4feefa2b0dbbc6876cb4eeeee108aa6791dDouglas Gregor 656866b5c03e3b9c01cf496ad97b85a05afc917345bTed Kremenek virtual SourceRange getSourceRange() const { return SourceRange(L, R); } 6575f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 658313a81dd820c9b2c0203bdcd974c781a81e4f0cfDouglas Gregor /// \brief Get the location of the left parentheses '('. 659313a81dd820c9b2c0203bdcd974c781a81e4f0cfDouglas Gregor SourceLocation getLParen() const { return L; } 660c04db4feefa2b0dbbc6876cb4eeeee108aa6791dDouglas Gregor void setLParen(SourceLocation Loc) { L = Loc; } 661313a81dd820c9b2c0203bdcd974c781a81e4f0cfDouglas Gregor 662313a81dd820c9b2c0203bdcd974c781a81e4f0cfDouglas Gregor /// \brief Get the location of the right parentheses ')'. 663313a81dd820c9b2c0203bdcd974c781a81e4f0cfDouglas Gregor SourceLocation getRParen() const { return R; } 664c04db4feefa2b0dbbc6876cb4eeeee108aa6791dDouglas Gregor void setRParen(SourceLocation Loc) { R = Loc; } 665313a81dd820c9b2c0203bdcd974c781a81e4f0cfDouglas Gregor 6661eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 6671eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == ParenExprClass; 6685f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 6695f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const ParenExpr *) { return true; } 6701eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 67177ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek // Iterators 67277ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_begin(); 67377ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_end(); 6745f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 6755f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 6765f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 6770518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl/// UnaryOperator - This represents the unary-expression's (except sizeof and 6780518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl/// alignof), the postinc/postdec operators from postfix-expression, and various 6795f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// extensions. 680dbb36971c68ea944ac4b1fbe2d97fe7cca3b20acChris Lattner/// 681dbb36971c68ea944ac4b1fbe2d97fe7cca3b20acChris Lattner/// Notes on various nodes: 682dbb36971c68ea944ac4b1fbe2d97fe7cca3b20acChris Lattner/// 683dbb36971c68ea944ac4b1fbe2d97fe7cca3b20acChris Lattner/// Real/Imag - These return the real/imag part of a complex operand. If 684dbb36971c68ea944ac4b1fbe2d97fe7cca3b20acChris Lattner/// applied to a non-complex value, the former returns its operand and the 685dbb36971c68ea944ac4b1fbe2d97fe7cca3b20acChris Lattner/// later returns zero in the type of the operand. 686dbb36971c68ea944ac4b1fbe2d97fe7cca3b20acChris Lattner/// 68773d0d4fac161ed12926e010dcf8b448a8de6a2ecChris Lattner/// __builtin_offsetof(type, a.b[10]) is represented as a unary operator whose 6881eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// subexpression is a compound literal with the various MemberExpr and 68973d0d4fac161ed12926e010dcf8b448a8de6a2ecChris Lattner/// ArraySubscriptExpr's applied to it. 69073d0d4fac161ed12926e010dcf8b448a8de6a2ecChris Lattner/// 6915f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass UnaryOperator : public Expr { 6925f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 69313d130c3d225cdb5b1e6d9e86cea12eea718c707Chris Lattner // Note that additions to this should also update the StmtVisitor class. 6945f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer enum Opcode { 6955f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer PostInc, PostDec, // [C99 6.5.2.4] Postfix increment and decrement operators 6965f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer PreInc, PreDec, // [C99 6.5.3.1] Prefix increment and decrement operators. 6975f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer AddrOf, Deref, // [C99 6.5.3.2] Address and indirection operators. 6985f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Plus, Minus, // [C99 6.5.3.3] Unary arithmetic operators. 6995f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Not, LNot, // [C99 6.5.3.3] Unary arithmetic operators. 7005f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Real, Imag, // "__real expr"/"__imag expr" Extension. 70173d0d4fac161ed12926e010dcf8b448a8de6a2ecChris Lattner Extension, // __extension__ marker. 70273d0d4fac161ed12926e010dcf8b448a8de6a2ecChris Lattner OffsetOf // __builtin_offsetof 7035f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer }; 7045f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerprivate: 7055549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Stmt *Val; 7065f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Opcode Opc; 7075f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation Loc; 7081eb4433ac451dc16f4133a88af2d002ac26c58efMike Stumppublic: 7095f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 7105f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer UnaryOperator(Expr *input, Opcode opc, QualType type, SourceLocation l) 7119103bb27f4eefa0e0d7935387750e3aca24abc49Douglas Gregor : Expr(UnaryOperatorClass, type, 7129103bb27f4eefa0e0d7935387750e3aca24abc49Douglas Gregor input->isTypeDependent() && opc != OffsetOf, 7131eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump input->isValueDependent()), 7149103bb27f4eefa0e0d7935387750e3aca24abc49Douglas Gregor Val(input), Opc(opc), Loc(l) {} 7155f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 7160b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor /// \brief Build an empty unary operator. 7171eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump explicit UnaryOperator(EmptyShell Empty) 7180b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor : Expr(UnaryOperatorClass, Empty), Opc(AddrOf) { } 7190b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor 7205f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Opcode getOpcode() const { return Opc; } 7210b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor void setOpcode(Opcode O) { Opc = O; } 7220b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor 7235549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getSubExpr() const { return cast<Expr>(Val); } 7240b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor void setSubExpr(Expr *E) { Val = E; } 7250b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor 7265f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// getOperatorLoc - Return the location of the operator. 7275f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation getOperatorLoc() const { return Loc; } 7280b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor void setOperatorLoc(SourceLocation L) { Loc = L; } 7290b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor 7305f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// isPostfix - Return true if this is a postfix operation, like x++. 7312085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner static bool isPostfix(Opcode Op) { 7322085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner return Op == PostInc || Op == PostDec; 7332085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner } 7345f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 7355a56ac30d04e8f0431a08980885662a47a6308aaTed Kremenek /// isPostfix - Return true if this is a prefix operation, like --x. 7362085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner static bool isPrefix(Opcode Op) { 7372085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner return Op == PreInc || Op == PreDec; 7382085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner } 7395a56ac30d04e8f0431a08980885662a47a6308aaTed Kremenek 7405a56ac30d04e8f0431a08980885662a47a6308aaTed Kremenek bool isPrefix() const { return isPrefix(Opc); } 7415f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool isPostfix() const { return isPostfix(Opc); } 7425d826b82936beb2c32dd02460332ba8035192c65Ted Kremenek bool isIncrementOp() const {return Opc==PreInc || Opc==PostInc; } 7435f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool isIncrementDecrementOp() const { return Opc>=PostInc && Opc<=PreDec; } 7445a1deb8d9c0722beae28d693fa137bbb942bd11fAnders Carlsson bool isOffsetOfOp() const { return Opc == OffsetOf; } 7455f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool isArithmeticOp(Opcode Op) { return Op >= Plus && Op <= LNot; } 7461eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump bool isArithmeticOp() const { return isArithmeticOp(Opc); } 7471eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 7485f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// getOpcodeStr - Turn an Opcode enum value into the punctuation char it 7495f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// corresponds to, e.g. "sizeof" or "[pre]++" 7505f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static const char *getOpcodeStr(Opcode Op); 7515f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 752bc736fceca6f0bca31d16003a7587857190408fbDouglas Gregor /// \brief Retrieve the unary opcode that corresponds to the given 753bc736fceca6f0bca31d16003a7587857190408fbDouglas Gregor /// overloaded operator. 754bc736fceca6f0bca31d16003a7587857190408fbDouglas Gregor static Opcode getOverloadedOpcode(OverloadedOperatorKind OO, bool Postfix); 755bc736fceca6f0bca31d16003a7587857190408fbDouglas Gregor 756bc736fceca6f0bca31d16003a7587857190408fbDouglas Gregor /// \brief Retrieve the overloaded operator kind that corresponds to 757bc736fceca6f0bca31d16003a7587857190408fbDouglas Gregor /// the given unary opcode. 758bc736fceca6f0bca31d16003a7587857190408fbDouglas Gregor static OverloadedOperatorKind getOverloadedOperator(Opcode Opc); 759bc736fceca6f0bca31d16003a7587857190408fbDouglas Gregor 7605f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer virtual SourceRange getSourceRange() const { 7615f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (isPostfix()) 7625f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return SourceRange(Val->getLocStart(), Loc); 7635f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer else 7645f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return SourceRange(Loc, Val->getLocEnd()); 7655f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 7665f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer virtual SourceLocation getExprLoc() const { return Loc; } 7671eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 7681eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 7691eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == UnaryOperatorClass; 7705f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 7715f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const UnaryOperator *) { return true; } 7721eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 77377ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek // Iterators 77477ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_begin(); 77577ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_end(); 7765f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 7775f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 7780518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl/// SizeOfAlignOfExpr - [C99 6.5.3.4] - This is for sizeof/alignof, both of 7790518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl/// types and expressions. 7800518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redlclass SizeOfAlignOfExpr : public Expr { 7810518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl bool isSizeof : 1; // true if sizeof, false if alignof. 7820518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl bool isType : 1; // true if operand is a type, false if an expression 783d457589fc69dc7a9c80cd74d317c0b81a35a27c9Sebastian Redl union { 784d457589fc69dc7a9c80cd74d317c0b81a35a27c9Sebastian Redl void *Ty; 785d457589fc69dc7a9c80cd74d317c0b81a35a27c9Sebastian Redl Stmt *Ex; 786d457589fc69dc7a9c80cd74d317c0b81a35a27c9Sebastian Redl } Argument; 7875f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation OpLoc, RParenLoc; 78842602bb40aefcc2751d4078ba88aacf4d965c9bdDouglas Gregor 78942602bb40aefcc2751d4078ba88aacf4d965c9bdDouglas Gregorprotected: 79042602bb40aefcc2751d4078ba88aacf4d965c9bdDouglas Gregor virtual void DoDestroy(ASTContext& C); 79142602bb40aefcc2751d4078ba88aacf4d965c9bdDouglas Gregor 7925f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 7931eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump SizeOfAlignOfExpr(bool issizeof, QualType T, 7940518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl QualType resultType, SourceLocation op, 7950518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl SourceLocation rp) : 7962850784bda09416fc7e9d57f5baa36c9351c757cSebastian Redl Expr(SizeOfAlignOfExprClass, resultType, 797ba49817c5b9f502602672861cf369fd0e53966e8Douglas Gregor false, // Never type-dependent (C++ [temp.dep.expr]p3). 7982850784bda09416fc7e9d57f5baa36c9351c757cSebastian Redl // Value-dependent if the argument is type-dependent. 799ba49817c5b9f502602672861cf369fd0e53966e8Douglas Gregor T->isDependentType()), 800ba49817c5b9f502602672861cf369fd0e53966e8Douglas Gregor isSizeof(issizeof), isType(true), OpLoc(op), RParenLoc(rp) { 801ba49817c5b9f502602672861cf369fd0e53966e8Douglas Gregor Argument.Ty = T.getAsOpaquePtr(); 802ba49817c5b9f502602672861cf369fd0e53966e8Douglas Gregor } 803ba49817c5b9f502602672861cf369fd0e53966e8Douglas Gregor 8041eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump SizeOfAlignOfExpr(bool issizeof, Expr *E, 805ba49817c5b9f502602672861cf369fd0e53966e8Douglas Gregor QualType resultType, SourceLocation op, 806ba49817c5b9f502602672861cf369fd0e53966e8Douglas Gregor SourceLocation rp) : 807ba49817c5b9f502602672861cf369fd0e53966e8Douglas Gregor Expr(SizeOfAlignOfExprClass, resultType, 808ba49817c5b9f502602672861cf369fd0e53966e8Douglas Gregor false, // Never type-dependent (C++ [temp.dep.expr]p3). 809ba49817c5b9f502602672861cf369fd0e53966e8Douglas Gregor // Value-dependent if the argument is type-dependent. 810ba49817c5b9f502602672861cf369fd0e53966e8Douglas Gregor E->isTypeDependent()), 811ba49817c5b9f502602672861cf369fd0e53966e8Douglas Gregor isSizeof(issizeof), isType(false), OpLoc(op), RParenLoc(rp) { 812ba49817c5b9f502602672861cf369fd0e53966e8Douglas Gregor Argument.Ex = E; 813d457589fc69dc7a9c80cd74d317c0b81a35a27c9Sebastian Redl } 8140518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl 8150b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor /// \brief Construct an empty sizeof/alignof expression. 8160b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor explicit SizeOfAlignOfExpr(EmptyShell Empty) 8170b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor : Expr(SizeOfAlignOfExprClass, Empty) { } 8180b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor 8195f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool isSizeOf() const { return isSizeof; } 8200b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor void setSizeof(bool S) { isSizeof = S; } 8210b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor 8220518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl bool isArgumentType() const { return isType; } 8230518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl QualType getArgumentType() const { 8240518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl assert(isArgumentType() && "calling getArgumentType() when arg is expr"); 825d457589fc69dc7a9c80cd74d317c0b81a35a27c9Sebastian Redl return QualType::getFromOpaquePtr(Argument.Ty); 8260518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl } 827caae7b099a0324b7c15dc89a9b70969d5d7ce996Chris Lattner Expr *getArgumentExpr() { 8280518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl assert(!isArgumentType() && "calling getArgumentExpr() when arg is type"); 829d457589fc69dc7a9c80cd74d317c0b81a35a27c9Sebastian Redl return static_cast<Expr*>(Argument.Ex); 8300518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl } 831caae7b099a0324b7c15dc89a9b70969d5d7ce996Chris Lattner const Expr *getArgumentExpr() const { 832caae7b099a0324b7c15dc89a9b70969d5d7ce996Chris Lattner return const_cast<SizeOfAlignOfExpr*>(this)->getArgumentExpr(); 833caae7b099a0324b7c15dc89a9b70969d5d7ce996Chris Lattner } 8340b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor 8350b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor void setArgument(Expr *E) { Argument.Ex = E; isType = false; } 8361eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump void setArgument(QualType T) { 8371eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump Argument.Ty = T.getAsOpaquePtr(); 8381eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump isType = true; 8390b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor } 8400b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor 8410518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl /// Gets the argument type, or the type of the argument expression, whichever 8420518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl /// is appropriate. 8430518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl QualType getTypeOfArgument() const { 8440518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl return isArgumentType() ? getArgumentType() : getArgumentExpr()->getType(); 8450518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl } 8460518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl 84776e773a443be9f006610f46529e07d4c8d857680Chris Lattner SourceLocation getOperatorLoc() const { return OpLoc; } 8480b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor void setOperatorLoc(SourceLocation L) { OpLoc = L; } 8490b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor 8500b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor SourceLocation getRParenLoc() const { return RParenLoc; } 8510b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor void setRParenLoc(SourceLocation L) { RParenLoc = L; } 852866b5c03e3b9c01cf496ad97b85a05afc917345bTed Kremenek 853866b5c03e3b9c01cf496ad97b85a05afc917345bTed Kremenek virtual SourceRange getSourceRange() const { 854866b5c03e3b9c01cf496ad97b85a05afc917345bTed Kremenek return SourceRange(OpLoc, RParenLoc); 855866b5c03e3b9c01cf496ad97b85a05afc917345bTed Kremenek } 8565f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 8571eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 8581eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == SizeOfAlignOfExprClass; 8595f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 8600518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl static bool classof(const SizeOfAlignOfExpr *) { return true; } 8611eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 86277ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek // Iterators 86377ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_begin(); 86477ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_end(); 8655f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 8665f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 8675f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer//===----------------------------------------------------------------------===// 8685f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// Postfix Operators. 8695f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer//===----------------------------------------------------------------------===// 8705f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 8715f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// ArraySubscriptExpr - [C99 6.5.2.1] Array Subscripting. 8725f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass ArraySubscriptExpr : public Expr { 87377ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek enum { LHS, RHS, END_EXPR=2 }; 8741eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump Stmt* SubExprs[END_EXPR]; 8755f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation RBracketLoc; 8765f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 8772324512285caac0332bbbc6e4cab6245d2a370a1Ted Kremenek ArraySubscriptExpr(Expr *lhs, Expr *rhs, QualType t, 87873d0d4fac161ed12926e010dcf8b448a8de6a2ecChris Lattner SourceLocation rbracketloc) 8792850784bda09416fc7e9d57f5baa36c9351c757cSebastian Redl : Expr(ArraySubscriptExprClass, t, 8802850784bda09416fc7e9d57f5baa36c9351c757cSebastian Redl lhs->isTypeDependent() || rhs->isTypeDependent(), 8812850784bda09416fc7e9d57f5baa36c9351c757cSebastian Redl lhs->isValueDependent() || rhs->isValueDependent()), 8822850784bda09416fc7e9d57f5baa36c9351c757cSebastian Redl RBracketLoc(rbracketloc) { 88373d0d4fac161ed12926e010dcf8b448a8de6a2ecChris Lattner SubExprs[LHS] = lhs; 88473d0d4fac161ed12926e010dcf8b448a8de6a2ecChris Lattner SubExprs[RHS] = rhs; 88573d0d4fac161ed12926e010dcf8b448a8de6a2ecChris Lattner } 8861eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 887cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor /// \brief Create an empty array subscript expression. 888cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor explicit ArraySubscriptExpr(EmptyShell Shell) 889cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor : Expr(ArraySubscriptExprClass, Shell) { } 890cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor 8912324512285caac0332bbbc6e4cab6245d2a370a1Ted Kremenek /// An array access can be written A[4] or 4[A] (both are equivalent). 8922324512285caac0332bbbc6e4cab6245d2a370a1Ted Kremenek /// - getBase() and getIdx() always present the normalized view: A[4]. 8932324512285caac0332bbbc6e4cab6245d2a370a1Ted Kremenek /// In this case getBase() returns "A" and getIdx() returns "4". 8942324512285caac0332bbbc6e4cab6245d2a370a1Ted Kremenek /// - getLHS() and getRHS() present the syntactic view. e.g. for 8952324512285caac0332bbbc6e4cab6245d2a370a1Ted Kremenek /// 4[A] getLHS() returns "4". 89633fd5c124aac15bab7cad95e4e0e7761356d2c06Christopher Lamb /// Note: Because vector element access is also written A[4] we must 89733fd5c124aac15bab7cad95e4e0e7761356d2c06Christopher Lamb /// predicate the format conversion in getBase and getIdx only on the 89833fd5c124aac15bab7cad95e4e0e7761356d2c06Christopher Lamb /// the type of the RHS, as it is possible for the LHS to be a vector of 89933fd5c124aac15bab7cad95e4e0e7761356d2c06Christopher Lamb /// integer type 9005549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getLHS() { return cast<Expr>(SubExprs[LHS]); } 9015549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek const Expr *getLHS() const { return cast<Expr>(SubExprs[LHS]); } 902cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor void setLHS(Expr *E) { SubExprs[LHS] = E; } 903cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor 9045549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getRHS() { return cast<Expr>(SubExprs[RHS]); } 9055549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek const Expr *getRHS() const { return cast<Expr>(SubExprs[RHS]); } 906cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor void setRHS(Expr *E) { SubExprs[RHS] = E; } 9071eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 9081eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump Expr *getBase() { 9095549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek return cast<Expr>(getRHS()->getType()->isIntegerType() ? getLHS():getRHS()); 91077ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek } 9111eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 9121eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump const Expr *getBase() const { 9135549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek return cast<Expr>(getRHS()->getType()->isIntegerType() ? getLHS():getRHS()); 9142324512285caac0332bbbc6e4cab6245d2a370a1Ted Kremenek } 9151eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 9161eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump Expr *getIdx() { 9175549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek return cast<Expr>(getRHS()->getType()->isIntegerType() ? getRHS():getLHS()); 9182324512285caac0332bbbc6e4cab6245d2a370a1Ted Kremenek } 9191eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 92077ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek const Expr *getIdx() const { 9215549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek return cast<Expr>(getRHS()->getType()->isIntegerType() ? getRHS():getLHS()); 9221eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump } 9231eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 9241eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump virtual SourceRange getSourceRange() const { 92577ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek return SourceRange(getLHS()->getLocStart(), RBracketLoc); 9265f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 9271eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 928026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner SourceLocation getRBracketLoc() const { return RBracketLoc; } 929cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor void setRBracketLoc(SourceLocation L) { RBracketLoc = L; } 930cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor 9315cd9d6daf3acd4cc87fecebd81d9495b9e4ba9cdChris Lattner virtual SourceLocation getExprLoc() const { return getBase()->getExprLoc(); } 9325f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 9331eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 9341eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == ArraySubscriptExprClass; 9355f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 9365f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const ArraySubscriptExpr *) { return true; } 9371eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 93877ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek // Iterators 93977ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_begin(); 94077ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_end(); 9415f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 9425f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 9435f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 944b4609806e9232593ece09ce08b630836e825865cDouglas Gregor/// CallExpr - Represents a function call (C99 6.5.2.2, C++ [expr.call]). 9451eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// CallExpr itself represents a normal function call, e.g., "f(x, 2)", 946b4609806e9232593ece09ce08b630836e825865cDouglas Gregor/// while its subclasses may represent alternative syntax that (semantically) 9471eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// results in a function call. For example, CXXOperatorCallExpr is 948b4609806e9232593ece09ce08b630836e825865cDouglas Gregor/// a subclass for overloaded operator calls that use operator syntax, e.g., 949b4609806e9232593ece09ce08b630836e825865cDouglas Gregor/// "str1 + str2" to resolve to a function call. 9505f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass CallExpr : public Expr { 95177ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek enum { FN=0, ARGS_START=1 }; 9525549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Stmt **SubExprs; 9535f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer unsigned NumArgs; 9545f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation RParenLoc; 9551eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 956b4609806e9232593ece09ce08b630836e825865cDouglas Gregorprotected: 957b4609806e9232593ece09ce08b630836e825865cDouglas Gregor // This version of the constructor is for derived classes. 958668bf91d31265b6ea8c3eb854ba450857701f269Ted Kremenek CallExpr(ASTContext& C, StmtClass SC, Expr *fn, Expr **args, unsigned numargs, 959668bf91d31265b6ea8c3eb854ba450857701f269Ted Kremenek QualType t, SourceLocation rparenloc); 96042602bb40aefcc2751d4078ba88aacf4d965c9bdDouglas Gregor 96142602bb40aefcc2751d4078ba88aacf4d965c9bdDouglas Gregor virtual void DoDestroy(ASTContext& C); 9621eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 9635f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 9641eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump CallExpr(ASTContext& C, Expr *fn, Expr **args, unsigned numargs, QualType t, 9655f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation rparenloc); 9661eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 9671f0d0133b0e8d1f01f63951ee04927796b34740dDouglas Gregor /// \brief Build an empty call expression. 968ba0a9006dbc4814e1e35f82812cb5a1dad65e8b8Argyrios Kyrtzidis CallExpr(ASTContext &C, StmtClass SC, EmptyShell Empty); 9691f0d0133b0e8d1f01f63951ee04927796b34740dDouglas Gregor 970668bf91d31265b6ea8c3eb854ba450857701f269Ted Kremenek ~CallExpr() {} 9711eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 9725549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek const Expr *getCallee() const { return cast<Expr>(SubExprs[FN]); } 9735549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getCallee() { return cast<Expr>(SubExprs[FN]); } 97418b2515e1bf8c86a4900792692e42fe1296be28dChris Lattner void setCallee(Expr *F) { SubExprs[FN] = F; } 975a00425414e8c209cabc25d1826b200aeb94259afZhongxing Xu 976a00425414e8c209cabc25d1826b200aeb94259afZhongxing Xu /// \brief If the callee is a FunctionDecl, return it. Otherwise return 0. 977a00425414e8c209cabc25d1826b200aeb94259afZhongxing Xu FunctionDecl *getDirectCallee(); 978a00425414e8c209cabc25d1826b200aeb94259afZhongxing Xu 9795f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// getNumArgs - Return the number of actual arguments to this call. 9805f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// 9815f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer unsigned getNumArgs() const { return NumArgs; } 9821eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 9835f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// getArg - Return the specified argument. 9845f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Expr *getArg(unsigned Arg) { 9855f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer assert(Arg < NumArgs && "Arg access out of range!"); 9865549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek return cast<Expr>(SubExprs[Arg+ARGS_START]); 9875f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 9885f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer const Expr *getArg(unsigned Arg) const { 9895f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer assert(Arg < NumArgs && "Arg access out of range!"); 9905549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek return cast<Expr>(SubExprs[Arg+ARGS_START]); 9915f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 9921eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 993934f276cc5b45e19cd12ebb2d04fd7972a23865cSteve Naroff /// setArg - Set the specified argument. 994934f276cc5b45e19cd12ebb2d04fd7972a23865cSteve Naroff void setArg(unsigned Arg, Expr *ArgExpr) { 995934f276cc5b45e19cd12ebb2d04fd7972a23865cSteve Naroff assert(Arg < NumArgs && "Arg access out of range!"); 996934f276cc5b45e19cd12ebb2d04fd7972a23865cSteve Naroff SubExprs[Arg+ARGS_START] = ArgExpr; 997934f276cc5b45e19cd12ebb2d04fd7972a23865cSteve Naroff } 9981eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 999d18b3299debb7b0dbd9d34d9369189dc98c87f53Chris Lattner /// setNumArgs - This changes the number of arguments present in this call. 1000d18b3299debb7b0dbd9d34d9369189dc98c87f53Chris Lattner /// Any orphaned expressions are deleted by this, and any new operands are set 1001d18b3299debb7b0dbd9d34d9369189dc98c87f53Chris Lattner /// to null. 10028189cde56b4f6f938cd65f53c932fe1860d0204cTed Kremenek void setNumArgs(ASTContext& C, unsigned NumArgs); 10031eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 10045549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek typedef ExprIterator arg_iterator; 10055549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek typedef ConstExprIterator const_arg_iterator; 10061eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1007d18b3299debb7b0dbd9d34d9369189dc98c87f53Chris Lattner arg_iterator arg_begin() { return SubExprs+ARGS_START; } 1008d18b3299debb7b0dbd9d34d9369189dc98c87f53Chris Lattner arg_iterator arg_end() { return SubExprs+ARGS_START+getNumArgs(); } 10095549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek const_arg_iterator arg_begin() const { return SubExprs+ARGS_START; } 10105549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek const_arg_iterator arg_end() const { return SubExprs+ARGS_START+getNumArgs();} 10111eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 10125f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// getNumCommas - Return the number of commas that must have been present in 10135f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// this function call. 10145f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer unsigned getNumCommas() const { return NumArgs ? NumArgs - 1 : 0; } 10155f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1016cb888967400a03504c88acedd5248d6778a82f46Chris Lattner /// isBuiltinCall - If this is a call to a builtin, return the builtin ID. If 1017cb888967400a03504c88acedd5248d6778a82f46Chris Lattner /// not, return 0. 10183c385e5f8d9008fff18597ca302be19fa86e51f6Douglas Gregor unsigned isBuiltinCall(ASTContext &Context) const; 10191eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 10201eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /// getCallReturnType - Get the return type of the call expr. This is not 10211eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /// always the type of the expr itself, if the return type is a reference 10226dde78f744382a5627a04f984a97049e0c4b5e73Anders Carlsson /// type. 10236dde78f744382a5627a04f984a97049e0c4b5e73Anders Carlsson QualType getCallReturnType() const; 10241eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1025d18b3299debb7b0dbd9d34d9369189dc98c87f53Chris Lattner SourceLocation getRParenLoc() const { return RParenLoc; } 10261f0d0133b0e8d1f01f63951ee04927796b34740dDouglas Gregor void setRParenLoc(SourceLocation L) { RParenLoc = L; } 1027866b5c03e3b9c01cf496ad97b85a05afc917345bTed Kremenek 10281eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump virtual SourceRange getSourceRange() const { 102977ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek return SourceRange(getCallee()->getLocStart(), RParenLoc); 10305f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 10311eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 10321eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 1033b4609806e9232593ece09ce08b630836e825865cDouglas Gregor return T->getStmtClass() == CallExprClass || 103488a3514f36de96b19cdf50141c640df1a5f13f6cDouglas Gregor T->getStmtClass() == CXXOperatorCallExprClass || 10351eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump T->getStmtClass() == CXXMemberCallExprClass; 10365f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 10375f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const CallExpr *) { return true; } 103888a3514f36de96b19cdf50141c640df1a5f13f6cDouglas Gregor static bool classof(const CXXOperatorCallExpr *) { return true; } 103988a3514f36de96b19cdf50141c640df1a5f13f6cDouglas Gregor static bool classof(const CXXMemberCallExpr *) { return true; } 104088a3514f36de96b19cdf50141c640df1a5f13f6cDouglas Gregor 104177ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek // Iterators 104277ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_begin(); 104377ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_end(); 10445f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 10455f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 10461eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// \brief Represents the qualifier that may precede a C++ name, e.g., the 104783f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor/// "std::" in "std::sort". 104883f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregorstruct NameQualifier { 104983f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor /// \brief The nested name specifier. 105083f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor NestedNameSpecifier *NNS; 10511eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 105283f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor /// \brief The source range covered by the nested name specifier. 105383f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor SourceRange Range; 105483f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor}; 1055c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor 1056c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor/// \brief Represents an explicit template argument list in C++, e.g., 10571eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// the "<int>" in "sort<int>". 1058c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregorstruct ExplicitTemplateArgumentList { 1059c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor /// \brief The source location of the left angle bracket ('<'); 1060c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor SourceLocation LAngleLoc; 10611eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1062c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor /// \brief The source location of the right angle bracket ('>'); 1063c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor SourceLocation RAngleLoc; 10641eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1065c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor /// \brief The number of template arguments in TemplateArgs. 10661eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /// The actual template arguments (if any) are stored after the 1067c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor /// ExplicitTemplateArgumentList structure. 1068c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor unsigned NumTemplateArgs; 10691eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1070c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor /// \brief Retrieve the template arguments 10711eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump TemplateArgument *getTemplateArgs() { 10721eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return reinterpret_cast<TemplateArgument *> (this + 1); 1073c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor } 1074c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor 1075c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor /// \brief Retrieve the template arguments 1076c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor const TemplateArgument *getTemplateArgs() const { 10771eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return reinterpret_cast<const TemplateArgument *> (this + 1); 1078c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor } 1079c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor}; 10801eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1081ddca44e86281bb7dcf5fdcaf1563434c524e3861Chris Lattner/// MemberExpr - [C99 6.5.2.3] Structure and Union Members. X->F and X.F. 10825f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 10835f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass MemberExpr : public Expr { 1084ddca44e86281bb7dcf5fdcaf1563434c524e3861Chris Lattner /// Base - the expression for the base pointer or structure references. In 1085ddca44e86281bb7dcf5fdcaf1563434c524e3861Chris Lattner /// X.F, this is "X". 10865549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Stmt *Base; 10871eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1088ddca44e86281bb7dcf5fdcaf1563434c524e3861Chris Lattner /// MemberDecl - This is the decl being referenced by the field/member name. 1089ddca44e86281bb7dcf5fdcaf1563434c524e3861Chris Lattner /// In X.F, this is the decl referenced by F. 109086f194083504938df72135b5b66bf0c5cafd9498Douglas Gregor NamedDecl *MemberDecl; 10911eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1092ddca44e86281bb7dcf5fdcaf1563434c524e3861Chris Lattner /// MemberLoc - This is the location of the member name. 10935f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation MemberLoc; 10941eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1095ddca44e86281bb7dcf5fdcaf1563434c524e3861Chris Lattner /// IsArrow - True if this is "X->F", false if this is "X.F". 109683f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor bool IsArrow : 1; 10971eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 109883f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor /// \brief True if this member expression used a nested-name-specifier to 10991eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /// refer to the member, e.g., "x->Base::f". When true, a NameQualifier 1100c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor /// structure is allocated immediately after the MemberExpr. 110183f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor bool HasQualifier : 1; 11021eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1103c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor /// \brief True if this member expression specified a template argument list 1104c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor /// explicitly, e.g., x->f<int>. When true, an ExplicitTemplateArgumentList 1105c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor /// structure (and its TemplateArguments) are allocated immediately after 1106c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor /// the MemberExpr or, if the member expression also has a qualifier, after 1107c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor /// the NameQualifier structure. 1108c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor bool HasExplicitTemplateArgumentList : 1; 11091eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 111083f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor /// \brief Retrieve the qualifier that preceded the member name, if any. 111183f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor NameQualifier *getMemberQualifier() { 111283f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor if (!HasQualifier) 111383f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor return 0; 11141eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 111583f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor return reinterpret_cast<NameQualifier *> (this + 1); 111683f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor } 111783f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor 111883f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor /// \brief Retrieve the qualifier that preceded the member name, if any. 111983f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor const NameQualifier *getMemberQualifier() const { 1120c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor return const_cast<MemberExpr *>(this)->getMemberQualifier(); 1121c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor } 11221eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1123c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor /// \brief Retrieve the explicit template argument list that followed the 1124c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor /// member template name, if any. 1125c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor ExplicitTemplateArgumentList *getExplicitTemplateArgumentList() { 1126c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor if (!HasExplicitTemplateArgumentList) 112783f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor return 0; 11281eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1129c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor if (!HasQualifier) 1130c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor return reinterpret_cast<ExplicitTemplateArgumentList *>(this + 1); 11311eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1132c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor return reinterpret_cast<ExplicitTemplateArgumentList *>( 1133c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor getMemberQualifier() + 1); 1134c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor } 11351eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1136c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor /// \brief Retrieve the explicit template argument list that followed the 1137c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor /// member template name, if any. 1138c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor const ExplicitTemplateArgumentList *getExplicitTemplateArgumentList() const { 1139c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor return const_cast<MemberExpr *>(this)->getExplicitTemplateArgumentList(); 114083f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor } 11411eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 11421eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump MemberExpr(Expr *base, bool isarrow, NestedNameSpecifier *qual, 114383f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor SourceRange qualrange, NamedDecl *memberdecl, SourceLocation l, 11441eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump bool has_explicit, SourceLocation langle, 11451eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump const TemplateArgument *targs, unsigned numtargs, 11461eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump SourceLocation rangle, QualType ty); 114783f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor 11485f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 114986f194083504938df72135b5b66bf0c5cafd9498Douglas Gregor MemberExpr(Expr *base, bool isarrow, NamedDecl *memberdecl, SourceLocation l, 11501eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump QualType ty) 11511eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump : Expr(MemberExprClass, ty, 1152ffce2df6ae280d354d51371282a579df1eb86876Anders Carlsson base->isTypeDependent(), base->isValueDependent()), 115383f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor Base(base), MemberDecl(memberdecl), MemberLoc(l), IsArrow(isarrow), 1154c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor HasQualifier(false), HasExplicitTemplateArgumentList(false) {} 1155510190777c4bd53e960eea4665b204778fec1b64Eli Friedman 11561f0d0133b0e8d1f01f63951ee04927796b34740dDouglas Gregor /// \brief Build an empty member reference expression. 11571eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump explicit MemberExpr(EmptyShell Empty) 11581eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump : Expr(MemberExprClass, Empty), HasQualifier(false), 1159e6585a7d71510be00a625686153f48d496d3bbf1Douglas Gregor HasExplicitTemplateArgumentList(false) { } 11601f0d0133b0e8d1f01f63951ee04927796b34740dDouglas Gregor 11611eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static MemberExpr *Create(ASTContext &C, Expr *base, bool isarrow, 116283f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor NestedNameSpecifier *qual, SourceRange qualrange, 11631eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump NamedDecl *memberdecl, 1164c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor SourceLocation l, 1165c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor bool has_explicit, 1166c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor SourceLocation langle, 1167c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor const TemplateArgument *targs, 1168c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor unsigned numtargs, 1169c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor SourceLocation rangle, 1170c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor QualType ty); 11711eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 117288a3514f36de96b19cdf50141c640df1a5f13f6cDouglas Gregor void setBase(Expr *E) { Base = E; } 11735549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getBase() const { return cast<Expr>(Base); } 117457e8b05fe9ba03d410db9c161e032cb79c9ab5baDouglas Gregor 117557e8b05fe9ba03d410db9c161e032cb79c9ab5baDouglas Gregor /// \brief Retrieve the member declaration to which this expression refers. 117657e8b05fe9ba03d410db9c161e032cb79c9ab5baDouglas Gregor /// 117757e8b05fe9ba03d410db9c161e032cb79c9ab5baDouglas Gregor /// The returned declaration will either be a FieldDecl or (in C++) 117857e8b05fe9ba03d410db9c161e032cb79c9ab5baDouglas Gregor /// a CXXMethodDecl. 117986f194083504938df72135b5b66bf0c5cafd9498Douglas Gregor NamedDecl *getMemberDecl() const { return MemberDecl; } 118088a3514f36de96b19cdf50141c640df1a5f13f6cDouglas Gregor void setMemberDecl(NamedDecl *D) { MemberDecl = D; } 11811f0d0133b0e8d1f01f63951ee04927796b34740dDouglas Gregor 11821eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /// \brief Determines whether this member expression actually had 11830979c805475d1ba49b5d6ef93c4d2ce6d2eab6edDouglas Gregor /// a C++ nested-name-specifier prior to the name of the member, e.g., 11840979c805475d1ba49b5d6ef93c4d2ce6d2eab6edDouglas Gregor /// x->Base::foo. 118583f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor bool hasQualifier() const { return HasQualifier; } 11861eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 118783f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor /// \brief If the member name was qualified, retrieves the source range of 118883f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor /// the nested-name-specifier that precedes the member name. Otherwise, 118983f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor /// returns an empty source range. 11901eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump SourceRange getQualifierRange() const { 119183f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor if (!HasQualifier) 119283f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor return SourceRange(); 11931eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 119483f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor return getMemberQualifier()->Range; 119583f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor } 11961eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 11971eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /// \brief If the member name was qualified, retrieves the 119883f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor /// nested-name-specifier that precedes the member name. Otherwise, returns 119983f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor /// NULL. 12001eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump NestedNameSpecifier *getQualifier() const { 120183f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor if (!HasQualifier) 120283f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor return 0; 12031eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 120483f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor return getMemberQualifier()->NNS; 120583f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor } 1206c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor 1207c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor /// \brief Determines whether this member expression actually had a C++ 1208c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor /// template argument list explicitly specified, e.g., x.f<int>. 12091eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump bool hasExplicitTemplateArgumentList() { 12101eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return HasExplicitTemplateArgumentList; 1211c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor } 12121eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 12131eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /// \brief Retrieve the location of the left angle bracket following the 1214c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor /// member name ('<'), if any. 12151eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump SourceLocation getLAngleLoc() const { 1216c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor if (!HasExplicitTemplateArgumentList) 1217c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor return SourceLocation(); 12181eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1219c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor return getExplicitTemplateArgumentList()->LAngleLoc; 1220c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor } 12211eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1222c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor /// \brief Retrieve the template arguments provided as part of this 1223c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor /// template-id. 12241eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump const TemplateArgument *getTemplateArgs() const { 1225c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor if (!HasExplicitTemplateArgumentList) 12261eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return 0; 12271eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1228c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor return getExplicitTemplateArgumentList()->getTemplateArgs(); 1229c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor } 12301eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1231c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor /// \brief Retrieve the number of template arguments provided as part of this 1232c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor /// template-id. 12331eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump unsigned getNumTemplateArgs() const { 1234c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor if (!HasExplicitTemplateArgumentList) 12351eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return 0; 12361eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1237c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor return getExplicitTemplateArgumentList()->NumTemplateArgs; 1238c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor } 12391eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 12401eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /// \brief Retrieve the location of the right angle bracket following the 1241c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor /// template arguments ('>'). 12421eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump SourceLocation getRAngleLoc() const { 1243c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor if (!HasExplicitTemplateArgumentList) 1244c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor return SourceLocation(); 12451eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1246c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor return getExplicitTemplateArgumentList()->RAngleLoc; 1247c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor } 12481eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 12495f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool isArrow() const { return IsArrow; } 12501f0d0133b0e8d1f01f63951ee04927796b34740dDouglas Gregor void setArrow(bool A) { IsArrow = A; } 12511f0d0133b0e8d1f01f63951ee04927796b34740dDouglas Gregor 1252ddca44e86281bb7dcf5fdcaf1563434c524e3861Chris Lattner /// getMemberLoc - Return the location of the "member", in X->F, it is the 1253ddca44e86281bb7dcf5fdcaf1563434c524e3861Chris Lattner /// location of 'F'. 1254026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner SourceLocation getMemberLoc() const { return MemberLoc; } 12551f0d0133b0e8d1f01f63951ee04927796b34740dDouglas Gregor void setMemberLoc(SourceLocation L) { MemberLoc = L; } 12565f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 12575f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer virtual SourceRange getSourceRange() const { 125872527137c521ad9330ecb81ccd841159719dc8cdEli Friedman // If we have an implicit base (like a C++ implicit this), 125972527137c521ad9330ecb81ccd841159719dc8cdEli Friedman // make sure not to return its location 1260c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor SourceLocation EndLoc = MemberLoc; 1261c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor if (HasExplicitTemplateArgumentList) 1262c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor EndLoc = getRAngleLoc(); 12631eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 126472527137c521ad9330ecb81ccd841159719dc8cdEli Friedman SourceLocation BaseLoc = getBase()->getLocStart(); 126572527137c521ad9330ecb81ccd841159719dc8cdEli Friedman if (BaseLoc.isInvalid()) 1266c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor return SourceRange(MemberLoc, EndLoc); 1267c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor return SourceRange(BaseLoc, EndLoc); 12685f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 12691eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 12705f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer virtual SourceLocation getExprLoc() const { return MemberLoc; } 12715f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 12721eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 127383f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor return T->getStmtClass() == MemberExprClass; 12745f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 12755f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const MemberExpr *) { return true; } 12761eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 12771237c673c07f9d827129ba02720108816abde562Ted Kremenek // Iterators 12781237c673c07f9d827129ba02720108816abde562Ted Kremenek virtual child_iterator child_begin(); 12791237c673c07f9d827129ba02720108816abde562Ted Kremenek virtual child_iterator child_end(); 12805f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 12815f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 12821eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// CompoundLiteralExpr - [C99 6.5.2.5] 1283aff1edd84aaafef15b737acd8ec61abcca6d6bc3Steve Naroff/// 1284aff1edd84aaafef15b737acd8ec61abcca6d6bc3Steve Naroffclass CompoundLiteralExpr : public Expr { 12850fc53dfc7a33f68e71ef245389c4e7cd34a62a39Chris Lattner /// LParenLoc - If non-null, this is the location of the left paren in a 12860fc53dfc7a33f68e71ef245389c4e7cd34a62a39Chris Lattner /// compound literal like "(int){4}". This can be null if this is a 12870fc53dfc7a33f68e71ef245389c4e7cd34a62a39Chris Lattner /// synthesized compound expression. 12880fc53dfc7a33f68e71ef245389c4e7cd34a62a39Chris Lattner SourceLocation LParenLoc; 12895549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Stmt *Init; 1290e9b12198c4cc7f5687960100351b4af006c14469Steve Naroff bool FileScope; 1291aff1edd84aaafef15b737acd8ec61abcca6d6bc3Steve Naroffpublic: 1292a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner CompoundLiteralExpr(SourceLocation lparenloc, QualType ty, Expr *init, 1293a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner bool fileScope) 1294a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner : Expr(CompoundLiteralExprClass, ty), LParenLoc(lparenloc), Init(init), 1295a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner FileScope(fileScope) {} 12961eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1297ba6d7e7fa5f79959d3eef39adb5620d845ba5198Douglas Gregor /// \brief Construct an empty compound literal. 1298ba6d7e7fa5f79959d3eef39adb5620d845ba5198Douglas Gregor explicit CompoundLiteralExpr(EmptyShell Empty) 1299ba6d7e7fa5f79959d3eef39adb5620d845ba5198Douglas Gregor : Expr(CompoundLiteralExprClass, Empty) { } 1300ba6d7e7fa5f79959d3eef39adb5620d845ba5198Douglas Gregor 13015549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek const Expr *getInitializer() const { return cast<Expr>(Init); } 13025549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getInitializer() { return cast<Expr>(Init); } 1303ba6d7e7fa5f79959d3eef39adb5620d845ba5198Douglas Gregor void setInitializer(Expr *E) { Init = E; } 1304e9b12198c4cc7f5687960100351b4af006c14469Steve Naroff 1305e9b12198c4cc7f5687960100351b4af006c14469Steve Naroff bool isFileScope() const { return FileScope; } 1306ba6d7e7fa5f79959d3eef39adb5620d845ba5198Douglas Gregor void setFileScope(bool FS) { FileScope = FS; } 1307ba6d7e7fa5f79959d3eef39adb5620d845ba5198Douglas Gregor 13080fc53dfc7a33f68e71ef245389c4e7cd34a62a39Chris Lattner SourceLocation getLParenLoc() const { return LParenLoc; } 1309ba6d7e7fa5f79959d3eef39adb5620d845ba5198Douglas Gregor void setLParenLoc(SourceLocation L) { LParenLoc = L; } 1310ba6d7e7fa5f79959d3eef39adb5620d845ba5198Douglas Gregor 131173d0d4fac161ed12926e010dcf8b448a8de6a2ecChris Lattner virtual SourceRange getSourceRange() const { 13120fc53dfc7a33f68e71ef245389c4e7cd34a62a39Chris Lattner // FIXME: Init should never be null. 13130fc53dfc7a33f68e71ef245389c4e7cd34a62a39Chris Lattner if (!Init) 13140fc53dfc7a33f68e71ef245389c4e7cd34a62a39Chris Lattner return SourceRange(); 13150fc53dfc7a33f68e71ef245389c4e7cd34a62a39Chris Lattner if (LParenLoc.isInvalid()) 131673d0d4fac161ed12926e010dcf8b448a8de6a2ecChris Lattner return Init->getSourceRange(); 13170fc53dfc7a33f68e71ef245389c4e7cd34a62a39Chris Lattner return SourceRange(LParenLoc, Init->getLocEnd()); 131873d0d4fac161ed12926e010dcf8b448a8de6a2ecChris Lattner } 1319aff1edd84aaafef15b737acd8ec61abcca6d6bc3Steve Naroff 13201eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 13211eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == CompoundLiteralExprClass; 1322aff1edd84aaafef15b737acd8ec61abcca6d6bc3Steve Naroff } 1323aff1edd84aaafef15b737acd8ec61abcca6d6bc3Steve Naroff static bool classof(const CompoundLiteralExpr *) { return true; } 13241eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 13251237c673c07f9d827129ba02720108816abde562Ted Kremenek // Iterators 13261237c673c07f9d827129ba02720108816abde562Ted Kremenek virtual child_iterator child_begin(); 13271237c673c07f9d827129ba02720108816abde562Ted Kremenek virtual child_iterator child_end(); 1328aff1edd84aaafef15b737acd8ec61abcca6d6bc3Steve Naroff}; 1329aff1edd84aaafef15b737acd8ec61abcca6d6bc3Steve Naroff 133049badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// CastExpr - Base class for type casts, including both implicit 133149badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// casts (ImplicitCastExpr) and explicit casts that have some 133249badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// representation in the source code (ExplicitCastExpr's derived 133349badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// classes). 13340835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidisclass CastExpr : public Expr { 1335cdef2b75aa60cde1ca00e0aa3f89139ac89c6ae4Anders Carlssonpublic: 1336cdef2b75aa60cde1ca00e0aa3f89139ac89c6ae4Anders Carlsson /// CastKind - the kind of cast this represents. 1337cdef2b75aa60cde1ca00e0aa3f89139ac89c6ae4Anders Carlsson enum CastKind { 1338cdef2b75aa60cde1ca00e0aa3f89139ac89c6ae4Anders Carlsson /// CK_Unknown - Unknown cast kind. 13391eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /// FIXME: The goal is to get rid of this and make all casts have a 1340cdef2b75aa60cde1ca00e0aa3f89139ac89c6ae4Anders Carlsson /// kind so that the AST client doesn't have to try to figure out what's 1341cdef2b75aa60cde1ca00e0aa3f89139ac89c6ae4Anders Carlsson /// going on. 1342cdef2b75aa60cde1ca00e0aa3f89139ac89c6ae4Anders Carlsson CK_Unknown, 13431eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1344cdef2b75aa60cde1ca00e0aa3f89139ac89c6ae4Anders Carlsson /// CK_BitCast - Used for reinterpret_cast. 1345cdef2b75aa60cde1ca00e0aa3f89139ac89c6ae4Anders Carlsson CK_BitCast, 13461eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1347cdef2b75aa60cde1ca00e0aa3f89139ac89c6ae4Anders Carlsson /// CK_NoOp - Used for const_cast. 13483503d041ca8a3535a1c1a30005a6b18ae7aed5dbAnders Carlsson CK_NoOp, 13491eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 13503503d041ca8a3535a1c1a30005a6b18ae7aed5dbAnders Carlsson /// CK_DerivedToBase - Derived to base class casts. 1351714179b179a31a0c3769a968ee18ba87b901b13fAnders Carlsson CK_DerivedToBase, 13521eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1353714179b179a31a0c3769a968ee18ba87b901b13fAnders Carlsson /// CK_Dynamic - Dynamic cast. 13544d8673b645ad86e496b886a0f80b60763f67071dAnders Carlsson CK_Dynamic, 13551eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 13564d8673b645ad86e496b886a0f80b60763f67071dAnders Carlsson /// CK_ToUnion - Cast to union (GCC extension). 1357112a0a8ddf23f6d25e0920002d5d4c1df0515f86Anders Carlsson CK_ToUnion, 13581eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1359112a0a8ddf23f6d25e0920002d5d4c1df0515f86Anders Carlsson /// CK_ArrayToPointerDecay - Array to pointer decay. 136027a5b9b9babd1e4f8a19c5c9c0736c4b311c79b2Anders Carlsson CK_ArrayToPointerDecay, 13611eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1362b633c4ee622df81d4572ef57dac54ebed69bb9bfAnders Carlsson // CK_FunctionToPointerDecay - Function to pointer decay. 1363b633c4ee622df81d4572ef57dac54ebed69bb9bfAnders Carlsson CK_FunctionToPointerDecay, 13641eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 136527a5b9b9babd1e4f8a19c5c9c0736c4b311c79b2Anders Carlsson /// CK_NullToMemberPointer - Null pointer to member pointer. 136627a5b9b9babd1e4f8a19c5c9c0736c4b311c79b2Anders Carlsson CK_NullToMemberPointer, 13671eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 136827a5b9b9babd1e4f8a19c5c9c0736c4b311c79b2Anders Carlsson /// CK_BaseToDerivedMemberPointer - Member pointer in base class to 136927a5b9b9babd1e4f8a19c5c9c0736c4b311c79b2Anders Carlsson /// member pointer in derived class. 13709099ff0cf91ac9e0b2d5a142807fa384ce842fc4Fariborz Jahanian CK_BaseToDerivedMemberPointer, 13719099ff0cf91ac9e0b2d5a142807fa384ce842fc4Fariborz Jahanian 13721eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /// CK_UserDefinedConversion - Conversion using a user defined type 137358d3f1af9b4efa426826816a16894986b78b2692Fariborz Jahanian /// conversion function. 13747fe5d72fbc8605b60d42d32394248ea76cf763a0Fariborz Jahanian CK_UserDefinedConversion, 13757fe5d72fbc8605b60d42d32394248ea76cf763a0Fariborz Jahanian 13767fe5d72fbc8605b60d42d32394248ea76cf763a0Fariborz Jahanian /// CK_ConstructorConversion - Conversion by constructor 13777f9e646b7ed47bc8e9a60031ad0c2b55031e2077Anders Carlsson CK_ConstructorConversion, 13787f9e646b7ed47bc8e9a60031ad0c2b55031e2077Anders Carlsson 13797f9e646b7ed47bc8e9a60031ad0c2b55031e2077Anders Carlsson /// CK_IntegralToPointer - Integral to pointer 13807f9e646b7ed47bc8e9a60031ad0c2b55031e2077Anders Carlsson CK_IntegralToPointer, 13817f9e646b7ed47bc8e9a60031ad0c2b55031e2077Anders Carlsson 13827f9e646b7ed47bc8e9a60031ad0c2b55031e2077Anders Carlsson /// CK_PointerToIntegral - Pointer to integral 13837f9e646b7ed47bc8e9a60031ad0c2b55031e2077Anders Carlsson CK_PointerToIntegral 1384cdef2b75aa60cde1ca00e0aa3f89139ac89c6ae4Anders Carlsson }; 13851eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1386cdef2b75aa60cde1ca00e0aa3f89139ac89c6ae4Anders Carlssonprivate: 1387cdef2b75aa60cde1ca00e0aa3f89139ac89c6ae4Anders Carlsson CastKind Kind; 13880835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis Stmt *Op; 13890835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidisprotected: 1390c0a2fd8f092722c8f78b566ac4506a21437040e9Anders Carlsson CastExpr(StmtClass SC, QualType ty, const CastKind kind, Expr *op) : 1391898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor Expr(SC, ty, 1392898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // Cast expressions are type-dependent if the type is 1393898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // dependent (C++ [temp.dep.expr]p3). 1394898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor ty->isDependentType(), 1395898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // Cast expressions are value-dependent if the type is 1396898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // dependent or if the subexpression is value-dependent. 13971eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump ty->isDependentType() || (op && op->isValueDependent())), 1398c0a2fd8f092722c8f78b566ac4506a21437040e9Anders Carlsson Kind(kind), Op(op) {} 13991eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1400087fd536809ebe754d91c641a98917e02dd7452dDouglas Gregor /// \brief Construct an empty cast. 14011eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump CastExpr(StmtClass SC, EmptyShell Empty) 1402087fd536809ebe754d91c641a98917e02dd7452dDouglas Gregor : Expr(SC, Empty) { } 14031eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 14040835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidispublic: 1405cdef2b75aa60cde1ca00e0aa3f89139ac89c6ae4Anders Carlsson CastKind getCastKind() const { return Kind; } 1406cdef2b75aa60cde1ca00e0aa3f89139ac89c6ae4Anders Carlsson void setCastKind(CastKind K) { Kind = K; } 1407f8ec55a104e55961f8666f773dce99bbc628298fAnders Carlsson const char *getCastKindName() const; 1408f8ec55a104e55961f8666f773dce99bbc628298fAnders Carlsson 14090835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis Expr *getSubExpr() { return cast<Expr>(Op); } 14100835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis const Expr *getSubExpr() const { return cast<Expr>(Op); } 1411087fd536809ebe754d91c641a98917e02dd7452dDouglas Gregor void setSubExpr(Expr *E) { Op = E; } 1412087fd536809ebe754d91c641a98917e02dd7452dDouglas Gregor 14131eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 14149d293dfc0ad7c44ae0b5eb9517f1ed8c8d8b7ff7Douglas Gregor StmtClass SC = T->getStmtClass(); 14159d293dfc0ad7c44ae0b5eb9517f1ed8c8d8b7ff7Douglas Gregor if (SC >= CXXNamedCastExprClass && SC <= CXXFunctionalCastExprClass) 14169d293dfc0ad7c44ae0b5eb9517f1ed8c8d8b7ff7Douglas Gregor return true; 14179d293dfc0ad7c44ae0b5eb9517f1ed8c8d8b7ff7Douglas Gregor 14186eec8e883de118b431e3ead5b1e604a6ac68ff6bDouglas Gregor if (SC >= ImplicitCastExprClass && SC <= CStyleCastExprClass) 14190835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis return true; 14209d293dfc0ad7c44ae0b5eb9517f1ed8c8d8b7ff7Douglas Gregor 14219d293dfc0ad7c44ae0b5eb9517f1ed8c8d8b7ff7Douglas Gregor return false; 14220835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis } 14230835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis static bool classof(const CastExpr *) { return true; } 14241eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 14250835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis // Iterators 14260835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis virtual child_iterator child_begin(); 14270835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis virtual child_iterator child_end(); 14280835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis}; 14290835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis 143049badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// ImplicitCastExpr - Allows us to explicitly represent implicit type 143149badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// conversions, which have no direct representation in the original 143249badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// source code. For example: converting T[]->T*, void f()->void 143349badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// (*f)(), float->double, short->int, etc. 143449b4526992a8c8a6a290aa3efa9828154a24af8dSteve Naroff/// 1435bf3af056289893f58d37b05a2c80970708781d61Douglas Gregor/// In C, implicit casts always produce rvalues. However, in C++, an 1436bf3af056289893f58d37b05a2c80970708781d61Douglas Gregor/// implicit cast whose result is being bound to a reference will be 1437bf3af056289893f58d37b05a2c80970708781d61Douglas Gregor/// an lvalue. For example: 1438bf3af056289893f58d37b05a2c80970708781d61Douglas Gregor/// 1439bf3af056289893f58d37b05a2c80970708781d61Douglas Gregor/// @code 1440bf3af056289893f58d37b05a2c80970708781d61Douglas Gregor/// class Base { }; 1441bf3af056289893f58d37b05a2c80970708781d61Douglas Gregor/// class Derived : public Base { }; 14421eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// void f(Derived d) { 1443bf3af056289893f58d37b05a2c80970708781d61Douglas Gregor/// Base& b = d; // initializer is an ImplicitCastExpr to an lvalue of type Base 1444bf3af056289893f58d37b05a2c80970708781d61Douglas Gregor/// } 1445bf3af056289893f58d37b05a2c80970708781d61Douglas Gregor/// @endcode 14460835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidisclass ImplicitCastExpr : public CastExpr { 1447eb8f3063257a392f15aea48d42fb73ec51afc548Douglas Gregor /// LvalueCast - Whether this cast produces an lvalue. 1448eb8f3063257a392f15aea48d42fb73ec51afc548Douglas Gregor bool LvalueCast; 1449eb8f3063257a392f15aea48d42fb73ec51afc548Douglas Gregor 145049b4526992a8c8a6a290aa3efa9828154a24af8dSteve Naroffpublic: 1451c0a2fd8f092722c8f78b566ac4506a21437040e9Anders Carlsson ImplicitCastExpr(QualType ty, CastKind kind, Expr *op, bool Lvalue) : 1452c0a2fd8f092722c8f78b566ac4506a21437040e9Anders Carlsson CastExpr(ImplicitCastExprClass, ty, kind, op), LvalueCast(Lvalue) { } 145390045e8ebabf50d6f1b3a67081a621b20b5e5341Steve Naroff 1454087fd536809ebe754d91c641a98917e02dd7452dDouglas Gregor /// \brief Construct an empty implicit cast. 14551eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump explicit ImplicitCastExpr(EmptyShell Shell) 1456087fd536809ebe754d91c641a98917e02dd7452dDouglas Gregor : CastExpr(ImplicitCastExprClass, Shell) { } 1457087fd536809ebe754d91c641a98917e02dd7452dDouglas Gregor 1458087fd536809ebe754d91c641a98917e02dd7452dDouglas Gregor 14590835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis virtual SourceRange getSourceRange() const { 14600835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis return getSubExpr()->getSourceRange(); 14610835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis } 146290045e8ebabf50d6f1b3a67081a621b20b5e5341Steve Naroff 1463eb8f3063257a392f15aea48d42fb73ec51afc548Douglas Gregor /// isLvalueCast - Whether this cast produces an lvalue. 1464eb8f3063257a392f15aea48d42fb73ec51afc548Douglas Gregor bool isLvalueCast() const { return LvalueCast; } 1465eb8f3063257a392f15aea48d42fb73ec51afc548Douglas Gregor 1466eb8f3063257a392f15aea48d42fb73ec51afc548Douglas Gregor /// setLvalueCast - Set whether this cast produces an lvalue. 1467eb8f3063257a392f15aea48d42fb73ec51afc548Douglas Gregor void setLvalueCast(bool Lvalue) { LvalueCast = Lvalue; } 1468eb8f3063257a392f15aea48d42fb73ec51afc548Douglas Gregor 14691eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 14701eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == ImplicitCastExprClass; 147149b4526992a8c8a6a290aa3efa9828154a24af8dSteve Naroff } 147249b4526992a8c8a6a290aa3efa9828154a24af8dSteve Naroff static bool classof(const ImplicitCastExpr *) { return true; } 147349b4526992a8c8a6a290aa3efa9828154a24af8dSteve Naroff}; 147449b4526992a8c8a6a290aa3efa9828154a24af8dSteve Naroff 147549badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// ExplicitCastExpr - An explicit cast written in the source 14761eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// code. 147749badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// 147849badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// This class is effectively an abstract class, because it provides 147949badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// the basic representation of an explicitly-written cast without 148049badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// specifying which kind of cast (C cast, functional cast, static 148149badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// cast, etc.) was written; specific derived classes represent the 148249badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// particular style of cast and its location information. 14835f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 148449badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// Unlike implicit casts, explicit cast nodes have two different 148549badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// types: the type that was written into the source code, and the 148649badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// actual type of the expression as determined by semantic 148749badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// analysis. These types may differ slightly. For example, in C++ one 148849badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// can cast to a reference type, which indicates that the resulting 148949badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// expression will be an lvalue. The reference type, however, will 149049badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// not be used as the type of the expression. 14910835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidisclass ExplicitCastExpr : public CastExpr { 149249badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor /// TypeAsWritten - The type that this expression is casting to, as 149349badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor /// written in the source code. 149449badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor QualType TypeAsWritten; 149549badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor 149649badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregorprotected: 1497c0a2fd8f092722c8f78b566ac4506a21437040e9Anders Carlsson ExplicitCastExpr(StmtClass SC, QualType exprTy, CastKind kind, 14981eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump Expr *op, QualType writtenTy) 1499c0a2fd8f092722c8f78b566ac4506a21437040e9Anders Carlsson : CastExpr(SC, exprTy, kind, op), TypeAsWritten(writtenTy) {} 150049badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor 1501db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor /// \brief Construct an empty explicit cast. 15021eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump ExplicitCastExpr(StmtClass SC, EmptyShell Shell) 1503db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor : CastExpr(SC, Shell) { } 1504db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor 150549badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregorpublic: 150649badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor /// getTypeAsWritten - Returns the type that this expression is 150749badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor /// casting to, as written in the source code. 150849badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor QualType getTypeAsWritten() const { return TypeAsWritten; } 1509db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor void setTypeAsWritten(QualType T) { TypeAsWritten = T; } 151049badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor 15111eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 15129d293dfc0ad7c44ae0b5eb9517f1ed8c8d8b7ff7Douglas Gregor StmtClass SC = T->getStmtClass(); 15136eec8e883de118b431e3ead5b1e604a6ac68ff6bDouglas Gregor if (SC >= ExplicitCastExprClass && SC <= CStyleCastExprClass) 15149d293dfc0ad7c44ae0b5eb9517f1ed8c8d8b7ff7Douglas Gregor return true; 15159d293dfc0ad7c44ae0b5eb9517f1ed8c8d8b7ff7Douglas Gregor if (SC >= CXXNamedCastExprClass && SC <= CXXFunctionalCastExprClass) 151649badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor return true; 15179d293dfc0ad7c44ae0b5eb9517f1ed8c8d8b7ff7Douglas Gregor 15189d293dfc0ad7c44ae0b5eb9517f1ed8c8d8b7ff7Douglas Gregor return false; 151949badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor } 152049badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor static bool classof(const ExplicitCastExpr *) { return true; } 152149badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor}; 152249badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor 15236eec8e883de118b431e3ead5b1e604a6ac68ff6bDouglas Gregor/// CStyleCastExpr - An explicit cast in C (C99 6.5.4) or a C-style 152449badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// cast in C++ (C++ [expr.cast]), which uses the syntax 152549badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// (Type)expr. For example: @c (int)f. 15266eec8e883de118b431e3ead5b1e604a6ac68ff6bDouglas Gregorclass CStyleCastExpr : public ExplicitCastExpr { 1527b2f9e516327310d95840d442416084508f80c183Steve Naroff SourceLocation LPLoc; // the location of the left paren 1528b2f9e516327310d95840d442416084508f80c183Steve Naroff SourceLocation RPLoc; // the location of the right paren 15295f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 15301eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump CStyleCastExpr(QualType exprTy, CastKind kind, Expr *op, QualType writtenTy, 15311eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump SourceLocation l, SourceLocation r) : 15321eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump ExplicitCastExpr(CStyleCastExprClass, exprTy, kind, op, writtenTy), 1533b2f9e516327310d95840d442416084508f80c183Steve Naroff LPLoc(l), RPLoc(r) {} 153449b4526992a8c8a6a290aa3efa9828154a24af8dSteve Naroff 1535db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor /// \brief Construct an empty C-style explicit cast. 15361eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump explicit CStyleCastExpr(EmptyShell Shell) 1537db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor : ExplicitCastExpr(CStyleCastExprClass, Shell) { } 1538db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor 1539b2f9e516327310d95840d442416084508f80c183Steve Naroff SourceLocation getLParenLoc() const { return LPLoc; } 1540db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor void setLParenLoc(SourceLocation L) { LPLoc = L; } 1541db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor 1542b2f9e516327310d95840d442416084508f80c183Steve Naroff SourceLocation getRParenLoc() const { return RPLoc; } 1543db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor void setRParenLoc(SourceLocation L) { RPLoc = L; } 1544db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor 15455f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer virtual SourceRange getSourceRange() const { 1546b2f9e516327310d95840d442416084508f80c183Steve Naroff return SourceRange(LPLoc, getSubExpr()->getSourceRange().getEnd()); 15475f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 15481eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 15491eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == CStyleCastExprClass; 15505f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 15516eec8e883de118b431e3ead5b1e604a6ac68ff6bDouglas Gregor static bool classof(const CStyleCastExpr *) { return true; } 15525f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 15535f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 15543fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// \brief A builtin binary operation expression such as "x + y" or "x <= y". 15553fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// 15563fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// This expression node kind describes a builtin binary operation, 15573fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// such as "x + y" for integer values "x" and "y". The operands will 15583fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// already have been converted to appropriate types (e.g., by 15593fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// performing promotions or conversions). 15603fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// 15613fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// In C++, where operators may be overloaded, a different kind of 15623fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// expression node (CXXOperatorCallExpr) is used to express the 15633fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// invocation of an overloaded operator with operator syntax. Within 15643fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// a C++ template, whether BinaryOperator or CXXOperatorCallExpr is 15653fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// used to store an expression "x + y" depends on the subexpressions 15663fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// for x and y. If neither x or y is type-dependent, and the "+" 15673fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// operator resolves to a built-in operation, BinaryOperator will be 15683fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// used to express the computation (x and y may still be 15693fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// value-dependent). If either x or y is type-dependent, or if the 15703fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// "+" resolves to an overloaded operator, CXXOperatorCallExpr will 15713fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// be used to express the computation. 15725f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass BinaryOperator : public Expr { 15735f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 15745f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer enum Opcode { 15755f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Operators listed in order of precedence. 157603d6fb99224c36935c9af9f4785cb33453c99b2bChris Lattner // Note that additions to this should also update the StmtVisitor class. 1577224605064a4ef87d1c3d35ad1cb363f8b534012bSebastian Redl PtrMemD, PtrMemI, // [C++ 5.5] Pointer-to-member operators. 15785f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Mul, Div, Rem, // [C99 6.5.5] Multiplicative operators. 15795f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Add, Sub, // [C99 6.5.6] Additive operators. 15805f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Shl, Shr, // [C99 6.5.7] Bitwise shift operators. 15815f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer LT, GT, LE, GE, // [C99 6.5.8] Relational operators. 15825f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer EQ, NE, // [C99 6.5.9] Equality operators. 15835f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer And, // [C99 6.5.10] Bitwise AND operator. 15845f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Xor, // [C99 6.5.11] Bitwise XOR operator. 15855f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Or, // [C99 6.5.12] Bitwise OR operator. 15865f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer LAnd, // [C99 6.5.13] Logical AND operator. 15875f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer LOr, // [C99 6.5.14] Logical OR operator. 15885f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Assign, MulAssign,// [C99 6.5.16] Assignment operators. 15895f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer DivAssign, RemAssign, 15905f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer AddAssign, SubAssign, 15915f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ShlAssign, ShrAssign, 15925f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer AndAssign, XorAssign, 15935f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer OrAssign, 15945f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Comma // [C99 6.5.17] Comma operator. 15955f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer }; 159617d1b2ac9f8371a0a2e79d4f8e0008658164f080Chris Lattnerprivate: 159717d1b2ac9f8371a0a2e79d4f8e0008658164f080Chris Lattner enum { LHS, RHS, END_EXPR }; 15985549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Stmt* SubExprs[END_EXPR]; 159917d1b2ac9f8371a0a2e79d4f8e0008658164f080Chris Lattner Opcode Opc; 160017d1b2ac9f8371a0a2e79d4f8e0008658164f080Chris Lattner SourceLocation OpLoc; 16011eb4433ac451dc16f4133a88af2d002ac26c58efMike Stumppublic: 16021eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 160317d1b2ac9f8371a0a2e79d4f8e0008658164f080Chris Lattner BinaryOperator(Expr *lhs, Expr *rhs, Opcode opc, QualType ResTy, 160417d1b2ac9f8371a0a2e79d4f8e0008658164f080Chris Lattner SourceLocation opLoc) 1605898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor : Expr(BinaryOperatorClass, ResTy, 1606898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor lhs->isTypeDependent() || rhs->isTypeDependent(), 16071eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump lhs->isValueDependent() || rhs->isValueDependent()), 1608898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor Opc(opc), OpLoc(opLoc) { 16091237c673c07f9d827129ba02720108816abde562Ted Kremenek SubExprs[LHS] = lhs; 16101237c673c07f9d827129ba02720108816abde562Ted Kremenek SubExprs[RHS] = rhs; 16111eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump assert(!isCompoundAssignmentOp() && 16125f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer "Use ArithAssignBinaryOperator for compound assignments"); 16135f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 16145f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1615db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor /// \brief Construct an empty binary operator. 16161eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump explicit BinaryOperator(EmptyShell Empty) 1617db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor : Expr(BinaryOperatorClass, Empty), Opc(Comma) { } 1618db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor 161917d1b2ac9f8371a0a2e79d4f8e0008658164f080Chris Lattner SourceLocation getOperatorLoc() const { return OpLoc; } 1620db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor void setOperatorLoc(SourceLocation L) { OpLoc = L; } 1621db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor 16225f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Opcode getOpcode() const { return Opc; } 1623db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor void setOpcode(Opcode O) { Opc = O; } 1624db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor 16255549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getLHS() const { return cast<Expr>(SubExprs[LHS]); } 1626db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor void setLHS(Expr *E) { SubExprs[LHS] = E; } 16275549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getRHS() const { return cast<Expr>(SubExprs[RHS]); } 1628db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor void setRHS(Expr *E) { SubExprs[RHS] = E; } 1629db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor 16305f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer virtual SourceRange getSourceRange() const { 16315f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return SourceRange(getLHS()->getLocStart(), getRHS()->getLocEnd()); 16325f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 16331eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 16345f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// getOpcodeStr - Turn an Opcode enum value into the punctuation char it 16355f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// corresponds to, e.g. "<<=". 16365f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static const char *getOpcodeStr(Opcode Op); 16375f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1638063daf6e196c51f162e0485478355d8e280eef5cDouglas Gregor /// \brief Retrieve the binary opcode that corresponds to the given 1639063daf6e196c51f162e0485478355d8e280eef5cDouglas Gregor /// overloaded operator. 1640063daf6e196c51f162e0485478355d8e280eef5cDouglas Gregor static Opcode getOverloadedOpcode(OverloadedOperatorKind OO); 1641063daf6e196c51f162e0485478355d8e280eef5cDouglas Gregor 1642063daf6e196c51f162e0485478355d8e280eef5cDouglas Gregor /// \brief Retrieve the overloaded operator kind that corresponds to 1643063daf6e196c51f162e0485478355d8e280eef5cDouglas Gregor /// the given binary opcode. 1644063daf6e196c51f162e0485478355d8e280eef5cDouglas Gregor static OverloadedOperatorKind getOverloadedOperator(Opcode Opc); 1645063daf6e196c51f162e0485478355d8e280eef5cDouglas Gregor 16465f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// predicates to categorize the respective opcodes. 16475f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool isMultiplicativeOp() const { return Opc >= Mul && Opc <= Rem; } 16485f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool isAdditiveOp() const { return Opc == Add || Opc == Sub; } 16495f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool isShiftOp() const { return Opc == Shl || Opc == Shr; } 16505f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool isBitwiseOp() const { return Opc >= And && Opc <= Or; } 1651f2da7a06f6b98c3886d9b871ab839f5085b1c238Ted Kremenek 1652f2da7a06f6b98c3886d9b871ab839f5085b1c238Ted Kremenek static bool isRelationalOp(Opcode Opc) { return Opc >= LT && Opc <= GE; } 1653f2da7a06f6b98c3886d9b871ab839f5085b1c238Ted Kremenek bool isRelationalOp() const { return isRelationalOp(Opc); } 1654f2da7a06f6b98c3886d9b871ab839f5085b1c238Ted Kremenek 16551eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool isEqualityOp(Opcode Opc) { return Opc == EQ || Opc == NE; } 1656f2da7a06f6b98c3886d9b871ab839f5085b1c238Ted Kremenek bool isEqualityOp() const { return isEqualityOp(Opc); } 16571eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1658f2da7a06f6b98c3886d9b871ab839f5085b1c238Ted Kremenek static bool isLogicalOp(Opcode Opc) { return Opc == LAnd || Opc == LOr; } 1659f2da7a06f6b98c3886d9b871ab839f5085b1c238Ted Kremenek bool isLogicalOp() const { return isLogicalOp(Opc); } 1660f2da7a06f6b98c3886d9b871ab839f5085b1c238Ted Kremenek 16615f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool isAssignmentOp() const { return Opc >= Assign && Opc <= OrAssign; } 16625f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool isCompoundAssignmentOp() const { return Opc > Assign && Opc <= OrAssign;} 16635f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool isShiftAssignOp() const { return Opc == ShlAssign || Opc == ShrAssign; } 16641eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 16651eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *S) { 1666eb14fe839ec24c2ca14e5f094be147a34e3d3339Chris Lattner return S->getStmtClass() == BinaryOperatorClass || 16671eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump S->getStmtClass() == CompoundAssignOperatorClass; 16685f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 16695f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const BinaryOperator *) { return true; } 16701237c673c07f9d827129ba02720108816abde562Ted Kremenek 16711237c673c07f9d827129ba02720108816abde562Ted Kremenek // Iterators 16721237c673c07f9d827129ba02720108816abde562Ted Kremenek virtual child_iterator child_begin(); 16731237c673c07f9d827129ba02720108816abde562Ted Kremenek virtual child_iterator child_end(); 16741237c673c07f9d827129ba02720108816abde562Ted Kremenek 16755f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerprotected: 167617d1b2ac9f8371a0a2e79d4f8e0008658164f080Chris Lattner BinaryOperator(Expr *lhs, Expr *rhs, Opcode opc, QualType ResTy, 167717d1b2ac9f8371a0a2e79d4f8e0008658164f080Chris Lattner SourceLocation oploc, bool dead) 167817d1b2ac9f8371a0a2e79d4f8e0008658164f080Chris Lattner : Expr(CompoundAssignOperatorClass, ResTy), Opc(opc), OpLoc(oploc) { 16791237c673c07f9d827129ba02720108816abde562Ted Kremenek SubExprs[LHS] = lhs; 16801237c673c07f9d827129ba02720108816abde562Ted Kremenek SubExprs[RHS] = rhs; 16815f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 1682ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor 16831eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump BinaryOperator(StmtClass SC, EmptyShell Empty) 1684ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor : Expr(SC, Empty), Opc(MulAssign) { } 16855f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 16865f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 16875f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// CompoundAssignOperator - For compound assignments (e.g. +=), we keep 16885f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// track of the type the operation is performed in. Due to the semantics of 16895f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// these operators, the operands are promoted, the aritmetic performed, an 16905f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// implicit conversion back to the result type done, then the assignment takes 16915f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// place. This captures the intermediate type which the computation is done 16925f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// in. 16935f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass CompoundAssignOperator : public BinaryOperator { 1694ab3a852ae713189444dcbf75e70accf1e8c2b7f2Eli Friedman QualType ComputationLHSType; 1695ab3a852ae713189444dcbf75e70accf1e8c2b7f2Eli Friedman QualType ComputationResultType; 16965f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 16975f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer CompoundAssignOperator(Expr *lhs, Expr *rhs, Opcode opc, 1698ab3a852ae713189444dcbf75e70accf1e8c2b7f2Eli Friedman QualType ResType, QualType CompLHSType, 1699ab3a852ae713189444dcbf75e70accf1e8c2b7f2Eli Friedman QualType CompResultType, 170017d1b2ac9f8371a0a2e79d4f8e0008658164f080Chris Lattner SourceLocation OpLoc) 170117d1b2ac9f8371a0a2e79d4f8e0008658164f080Chris Lattner : BinaryOperator(lhs, rhs, opc, ResType, OpLoc, true), 1702ab3a852ae713189444dcbf75e70accf1e8c2b7f2Eli Friedman ComputationLHSType(CompLHSType), 1703ab3a852ae713189444dcbf75e70accf1e8c2b7f2Eli Friedman ComputationResultType(CompResultType) { 17041eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump assert(isCompoundAssignmentOp() && 17055f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer "Only should be used for compound assignments"); 17065f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 17075f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1708ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor /// \brief Build an empty compound assignment operator expression. 1709ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor explicit CompoundAssignOperator(EmptyShell Empty) 1710ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor : BinaryOperator(CompoundAssignOperatorClass, Empty) { } 1711ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor 1712ab3a852ae713189444dcbf75e70accf1e8c2b7f2Eli Friedman // The two computation types are the type the LHS is converted 1713ab3a852ae713189444dcbf75e70accf1e8c2b7f2Eli Friedman // to for the computation and the type of the result; the two are 1714ab3a852ae713189444dcbf75e70accf1e8c2b7f2Eli Friedman // distinct in a few cases (specifically, int+=ptr and ptr-=ptr). 1715ab3a852ae713189444dcbf75e70accf1e8c2b7f2Eli Friedman QualType getComputationLHSType() const { return ComputationLHSType; } 1716ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor void setComputationLHSType(QualType T) { ComputationLHSType = T; } 1717ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor 1718ab3a852ae713189444dcbf75e70accf1e8c2b7f2Eli Friedman QualType getComputationResultType() const { return ComputationResultType; } 1719ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor void setComputationResultType(QualType T) { ComputationResultType = T; } 1720ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor 17215f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const CompoundAssignOperator *) { return true; } 17221eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *S) { 17231eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return S->getStmtClass() == CompoundAssignOperatorClass; 17245f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 17255f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 17265f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 17275f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// ConditionalOperator - The ?: operator. Note that LHS may be null when the 17285f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// GNU "missing LHS" extension is in use. 17295f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 17305f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass ConditionalOperator : public Expr { 17311237c673c07f9d827129ba02720108816abde562Ted Kremenek enum { COND, LHS, RHS, END_EXPR }; 17325549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Stmt* SubExprs[END_EXPR]; // Left/Middle/Right hand sides. 173347e1f7c68bf375cac470fdb2b599ddbb395aeb52Douglas Gregor SourceLocation QuestionLoc, ColonLoc; 17345f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 173547e1f7c68bf375cac470fdb2b599ddbb395aeb52Douglas Gregor ConditionalOperator(Expr *cond, SourceLocation QLoc, Expr *lhs, 173647e1f7c68bf375cac470fdb2b599ddbb395aeb52Douglas Gregor SourceLocation CLoc, Expr *rhs, QualType t) 1737898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor : Expr(ConditionalOperatorClass, t, 1738898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // FIXME: the type of the conditional operator doesn't 1739898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // depend on the type of the conditional, but the standard 1740898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // seems to imply that it could. File a bug! 1741898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor ((lhs && lhs->isTypeDependent()) || (rhs && rhs->isTypeDependent())), 17421eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump (cond->isValueDependent() || 1743898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor (lhs && lhs->isValueDependent()) || 174447e1f7c68bf375cac470fdb2b599ddbb395aeb52Douglas Gregor (rhs && rhs->isValueDependent()))), 174547e1f7c68bf375cac470fdb2b599ddbb395aeb52Douglas Gregor QuestionLoc(QLoc), 174647e1f7c68bf375cac470fdb2b599ddbb395aeb52Douglas Gregor ColonLoc(CLoc) { 17471237c673c07f9d827129ba02720108816abde562Ted Kremenek SubExprs[COND] = cond; 17481237c673c07f9d827129ba02720108816abde562Ted Kremenek SubExprs[LHS] = lhs; 17491237c673c07f9d827129ba02720108816abde562Ted Kremenek SubExprs[RHS] = rhs; 17501237c673c07f9d827129ba02720108816abde562Ted Kremenek } 17515f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1752ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor /// \brief Build an empty conditional operator. 1753ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor explicit ConditionalOperator(EmptyShell Empty) 1754ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor : Expr(ConditionalOperatorClass, Empty) { } 1755ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor 1756395a2abf0028968d85958610e393e067885dc14fTed Kremenek // getCond - Return the expression representing the condition for 1757395a2abf0028968d85958610e393e067885dc14fTed Kremenek // the ?: operator. 17585549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getCond() const { return cast<Expr>(SubExprs[COND]); } 1759ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor void setCond(Expr *E) { SubExprs[COND] = E; } 1760395a2abf0028968d85958610e393e067885dc14fTed Kremenek 1761395a2abf0028968d85958610e393e067885dc14fTed Kremenek // getTrueExpr - Return the subexpression representing the value of the ?: 1762395a2abf0028968d85958610e393e067885dc14fTed Kremenek // expression if the condition evaluates to true. In most cases this value 1763395a2abf0028968d85958610e393e067885dc14fTed Kremenek // will be the same as getLHS() except a GCC extension allows the left 1764395a2abf0028968d85958610e393e067885dc14fTed Kremenek // subexpression to be omitted, and instead of the condition be returned. 1765395a2abf0028968d85958610e393e067885dc14fTed Kremenek // e.g: x ?: y is shorthand for x ? x : y, except that the expression "x" 17661eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // is only evaluated once. 1767395a2abf0028968d85958610e393e067885dc14fTed Kremenek Expr *getTrueExpr() const { 17685549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek return cast<Expr>(SubExprs[LHS] ? SubExprs[LHS] : SubExprs[COND]); 1769395a2abf0028968d85958610e393e067885dc14fTed Kremenek } 17701eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1771395a2abf0028968d85958610e393e067885dc14fTed Kremenek // getTrueExpr - Return the subexpression representing the value of the ?: 1772395a2abf0028968d85958610e393e067885dc14fTed Kremenek // expression if the condition evaluates to false. This is the same as getRHS. 17735549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getFalseExpr() const { return cast<Expr>(SubExprs[RHS]); } 17741eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 17755549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getLHS() const { return cast_or_null<Expr>(SubExprs[LHS]); } 1776ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor void setLHS(Expr *E) { SubExprs[LHS] = E; } 1777ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor 17785549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getRHS() const { return cast<Expr>(SubExprs[RHS]); } 1779ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor void setRHS(Expr *E) { SubExprs[RHS] = E; } 17805f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 178147e1f7c68bf375cac470fdb2b599ddbb395aeb52Douglas Gregor SourceLocation getQuestionLoc() const { return QuestionLoc; } 178247e1f7c68bf375cac470fdb2b599ddbb395aeb52Douglas Gregor void setQuestionLoc(SourceLocation L) { QuestionLoc = L; } 178347e1f7c68bf375cac470fdb2b599ddbb395aeb52Douglas Gregor 178447e1f7c68bf375cac470fdb2b599ddbb395aeb52Douglas Gregor SourceLocation getColonLoc() const { return ColonLoc; } 178547e1f7c68bf375cac470fdb2b599ddbb395aeb52Douglas Gregor void setColonLoc(SourceLocation L) { ColonLoc = L; } 178647e1f7c68bf375cac470fdb2b599ddbb395aeb52Douglas Gregor 17875f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer virtual SourceRange getSourceRange() const { 17885f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return SourceRange(getCond()->getLocStart(), getRHS()->getLocEnd()); 17895f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 17901eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 17911eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == ConditionalOperatorClass; 17925f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 17935f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const ConditionalOperator *) { return true; } 17941eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 17951237c673c07f9d827129ba02720108816abde562Ted Kremenek // Iterators 17961237c673c07f9d827129ba02720108816abde562Ted Kremenek virtual child_iterator child_begin(); 17971237c673c07f9d827129ba02720108816abde562Ted Kremenek virtual child_iterator child_end(); 17985f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 17995f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 18006481a57fefbf1a313ff439028470fe4c27a3b7a3Chris Lattner/// AddrLabelExpr - The GNU address of label extension, representing &&label. 18016481a57fefbf1a313ff439028470fe4c27a3b7a3Chris Lattnerclass AddrLabelExpr : public Expr { 18025f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation AmpAmpLoc, LabelLoc; 18035f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer LabelStmt *Label; 18045f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 18056481a57fefbf1a313ff439028470fe4c27a3b7a3Chris Lattner AddrLabelExpr(SourceLocation AALoc, SourceLocation LLoc, LabelStmt *L, 18066481a57fefbf1a313ff439028470fe4c27a3b7a3Chris Lattner QualType t) 18076481a57fefbf1a313ff439028470fe4c27a3b7a3Chris Lattner : Expr(AddrLabelExprClass, t), AmpAmpLoc(AALoc), LabelLoc(LLoc), Label(L) {} 18081eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 18097d5c2f241c74e5f8d9ec492e8f9f268e5e9ae41fDouglas Gregor /// \brief Build an empty address of a label expression. 18101eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump explicit AddrLabelExpr(EmptyShell Empty) 18117d5c2f241c74e5f8d9ec492e8f9f268e5e9ae41fDouglas Gregor : Expr(AddrLabelExprClass, Empty) { } 18127d5c2f241c74e5f8d9ec492e8f9f268e5e9ae41fDouglas Gregor 18137d5c2f241c74e5f8d9ec492e8f9f268e5e9ae41fDouglas Gregor SourceLocation getAmpAmpLoc() const { return AmpAmpLoc; } 18147d5c2f241c74e5f8d9ec492e8f9f268e5e9ae41fDouglas Gregor void setAmpAmpLoc(SourceLocation L) { AmpAmpLoc = L; } 18157d5c2f241c74e5f8d9ec492e8f9f268e5e9ae41fDouglas Gregor SourceLocation getLabelLoc() const { return LabelLoc; } 18167d5c2f241c74e5f8d9ec492e8f9f268e5e9ae41fDouglas Gregor void setLabelLoc(SourceLocation L) { LabelLoc = L; } 18177d5c2f241c74e5f8d9ec492e8f9f268e5e9ae41fDouglas Gregor 18185f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer virtual SourceRange getSourceRange() const { 18195f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return SourceRange(AmpAmpLoc, LabelLoc); 18205f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 18211eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 18225f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer LabelStmt *getLabel() const { return Label; } 18237d5c2f241c74e5f8d9ec492e8f9f268e5e9ae41fDouglas Gregor void setLabel(LabelStmt *S) { Label = S; } 18247d5c2f241c74e5f8d9ec492e8f9f268e5e9ae41fDouglas Gregor 18255f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const Stmt *T) { 18261eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == AddrLabelExprClass; 18275f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 18286481a57fefbf1a313ff439028470fe4c27a3b7a3Chris Lattner static bool classof(const AddrLabelExpr *) { return true; } 18291eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 18301237c673c07f9d827129ba02720108816abde562Ted Kremenek // Iterators 18311237c673c07f9d827129ba02720108816abde562Ted Kremenek virtual child_iterator child_begin(); 18321237c673c07f9d827129ba02720108816abde562Ted Kremenek virtual child_iterator child_end(); 18335f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 1834ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner 1835ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner/// StmtExpr - This is the GNU Statement Expression extension: ({int X=4; X;}). 1836ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner/// The StmtExpr contains a single CompoundStmt node, which it evaluates and 1837ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner/// takes the value of the last subexpression. 1838ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattnerclass StmtExpr : public Expr { 18395549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Stmt *SubStmt; 1840ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner SourceLocation LParenLoc, RParenLoc; 1841ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattnerpublic: 1842d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroff StmtExpr(CompoundStmt *substmt, QualType T, 1843d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroff SourceLocation lp, SourceLocation rp) : 1844d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroff Expr(StmtExprClass, T), SubStmt(substmt), LParenLoc(lp), RParenLoc(rp) { } 18451eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 18466a2dd55b0b3ae376d449a4b07bbb6b2d30b26330Douglas Gregor /// \brief Build an empty statement expression. 18476a2dd55b0b3ae376d449a4b07bbb6b2d30b26330Douglas Gregor explicit StmtExpr(EmptyShell Empty) : Expr(StmtExprClass, Empty) { } 18486a2dd55b0b3ae376d449a4b07bbb6b2d30b26330Douglas Gregor 18495549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek CompoundStmt *getSubStmt() { return cast<CompoundStmt>(SubStmt); } 18505549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek const CompoundStmt *getSubStmt() const { return cast<CompoundStmt>(SubStmt); } 18516a2dd55b0b3ae376d449a4b07bbb6b2d30b26330Douglas Gregor void setSubStmt(CompoundStmt *S) { SubStmt = S; } 18526a2dd55b0b3ae376d449a4b07bbb6b2d30b26330Douglas Gregor 1853ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner virtual SourceRange getSourceRange() const { 1854ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner return SourceRange(LParenLoc, RParenLoc); 1855ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner } 18561eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1857026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner SourceLocation getLParenLoc() const { return LParenLoc; } 18586a2dd55b0b3ae376d449a4b07bbb6b2d30b26330Douglas Gregor void setLParenLoc(SourceLocation L) { LParenLoc = L; } 1859026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner SourceLocation getRParenLoc() const { return RParenLoc; } 18606a2dd55b0b3ae376d449a4b07bbb6b2d30b26330Douglas Gregor void setRParenLoc(SourceLocation L) { RParenLoc = L; } 18611eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1862ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner static bool classof(const Stmt *T) { 18631eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == StmtExprClass; 1864ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner } 1865ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner static bool classof(const StmtExpr *) { return true; } 18661eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 18671237c673c07f9d827129ba02720108816abde562Ted Kremenek // Iterators 18681237c673c07f9d827129ba02720108816abde562Ted Kremenek virtual child_iterator child_begin(); 18691237c673c07f9d827129ba02720108816abde562Ted Kremenek virtual child_iterator child_end(); 1870ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner}; 1871ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner 1872dc241b42c7588f99027b035a09b71557a6db219eDouglas Gregor/// TypesCompatibleExpr - GNU builtin-in function __builtin_types_compatible_p. 1873d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroff/// This AST node represents a function that returns 1 if two *types* (not 1874d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroff/// expressions) are compatible. The result of this built-in function can be 1875d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroff/// used in integer constant expressions. 1876d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroffclass TypesCompatibleExpr : public Expr { 1877d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroff QualType Type1; 1878d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroff QualType Type2; 1879363bcff47df2fda3cfcfcd994b7888157df58c43Steve Naroff SourceLocation BuiltinLoc, RParenLoc; 1880d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroffpublic: 18811eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump TypesCompatibleExpr(QualType ReturnType, SourceLocation BLoc, 18821eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump QualType t1, QualType t2, SourceLocation RP) : 1883d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroff Expr(TypesCompatibleExprClass, ReturnType), Type1(t1), Type2(t2), 1884363bcff47df2fda3cfcfcd994b7888157df58c43Steve Naroff BuiltinLoc(BLoc), RParenLoc(RP) {} 1885d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroff 188644cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor /// \brief Build an empty __builtin_type_compatible_p expression. 188744cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor explicit TypesCompatibleExpr(EmptyShell Empty) 188844cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor : Expr(TypesCompatibleExprClass, Empty) { } 188944cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor 18907f28fe8e00ec4fac17977374d8da491f873a3b05Steve Naroff QualType getArgType1() const { return Type1; } 189144cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor void setArgType1(QualType T) { Type1 = T; } 18927f28fe8e00ec4fac17977374d8da491f873a3b05Steve Naroff QualType getArgType2() const { return Type2; } 189344cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor void setArgType2(QualType T) { Type2 = T; } 18941eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 189544cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor SourceLocation getBuiltinLoc() const { return BuiltinLoc; } 189644cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor void setBuiltinLoc(SourceLocation L) { BuiltinLoc = L; } 18971eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 189844cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor SourceLocation getRParenLoc() const { return RParenLoc; } 189944cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor void setRParenLoc(SourceLocation L) { RParenLoc = L; } 19001eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1901d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroff virtual SourceRange getSourceRange() const { 1902363bcff47df2fda3cfcfcd994b7888157df58c43Steve Naroff return SourceRange(BuiltinLoc, RParenLoc); 1903d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroff } 1904d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroff static bool classof(const Stmt *T) { 19051eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == TypesCompatibleExprClass; 1906d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroff } 1907d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroff static bool classof(const TypesCompatibleExpr *) { return true; } 19081eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 19091237c673c07f9d827129ba02720108816abde562Ted Kremenek // Iterators 19101237c673c07f9d827129ba02720108816abde562Ted Kremenek virtual child_iterator child_begin(); 19111237c673c07f9d827129ba02720108816abde562Ted Kremenek virtual child_iterator child_end(); 1912d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroff}; 1913d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroff 1914d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman/// ShuffleVectorExpr - clang-specific builtin-in function 1915d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman/// __builtin_shufflevector. 1916d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman/// This AST node represents a operator that does a constant 1917d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman/// shuffle, similar to LLVM's shufflevector instruction. It takes 1918d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman/// two vectors and a variable number of constant indices, 1919d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman/// and returns the appropriately shuffled vector. 1920d38617c8a50f9729c254ab76cd359af797c6739bEli Friedmanclass ShuffleVectorExpr : public Expr { 1921d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman SourceLocation BuiltinLoc, RParenLoc; 1922d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman 1923d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman // SubExprs - the list of values passed to the __builtin_shufflevector 1924d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman // function. The first two are vectors, and the rest are constant 1925d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman // indices. The number of values in this list is always 1926d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman // 2+the number of indices in the vector type. 19275549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Stmt **SubExprs; 1928d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman unsigned NumExprs; 1929d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman 1930888376a2bbcfc2f047902249f8455918e2489ae1Nate Begemanprotected: 19311eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump virtual void DoDestroy(ASTContext &C); 1932888376a2bbcfc2f047902249f8455918e2489ae1Nate Begeman 1933d38617c8a50f9729c254ab76cd359af797c6739bEli Friedmanpublic: 1934a88dc3079bedf70a5cfc39791727e43a10383006Nate Begeman ShuffleVectorExpr(ASTContext &C, Expr **args, unsigned nexpr, 19351eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump QualType Type, SourceLocation BLoc, 19361eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump SourceLocation RP) : 1937d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman Expr(ShuffleVectorExprClass, Type), BuiltinLoc(BLoc), 1938f809e3bd0c3d063f22ba34981072dae306ca9272Ted Kremenek RParenLoc(RP), NumExprs(nexpr) { 19391eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1940a88dc3079bedf70a5cfc39791727e43a10383006Nate Begeman SubExprs = new (C) Stmt*[nexpr]; 1941d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman for (unsigned i = 0; i < nexpr; i++) 1942d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman SubExprs[i] = args[i]; 1943d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman } 194494cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor 194594cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor /// \brief Build an empty vector-shuffle expression. 19461eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump explicit ShuffleVectorExpr(EmptyShell Empty) 194794cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor : Expr(ShuffleVectorExprClass, Empty), SubExprs(0) { } 194894cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor 194994cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor SourceLocation getBuiltinLoc() const { return BuiltinLoc; } 195094cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor void setBuiltinLoc(SourceLocation L) { BuiltinLoc = L; } 19511eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 195294cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor SourceLocation getRParenLoc() const { return RParenLoc; } 195394cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor void setRParenLoc(SourceLocation L) { RParenLoc = L; } 195494cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor 1955d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman virtual SourceRange getSourceRange() const { 1956d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman return SourceRange(BuiltinLoc, RParenLoc); 1957d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman } 1958d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman static bool classof(const Stmt *T) { 19591eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == ShuffleVectorExprClass; 1960d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman } 1961d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman static bool classof(const ShuffleVectorExpr *) { return true; } 19621eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1963888376a2bbcfc2f047902249f8455918e2489ae1Nate Begeman ~ShuffleVectorExpr() {} 19641eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1965d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman /// getNumSubExprs - Return the size of the SubExprs array. This includes the 1966d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman /// constant expression, the actual arguments passed in, and the function 1967d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman /// pointers. 1968d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman unsigned getNumSubExprs() const { return NumExprs; } 19691eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1970d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman /// getExpr - Return the Expr at the specified index. 1971d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman Expr *getExpr(unsigned Index) { 1972d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman assert((Index < NumExprs) && "Arg access out of range!"); 19735549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek return cast<Expr>(SubExprs[Index]); 1974d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman } 1975d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman const Expr *getExpr(unsigned Index) const { 1976d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman assert((Index < NumExprs) && "Arg access out of range!"); 19775549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek return cast<Expr>(SubExprs[Index]); 1978d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman } 19791eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1980888376a2bbcfc2f047902249f8455918e2489ae1Nate Begeman void setExprs(ASTContext &C, Expr ** Exprs, unsigned NumExprs); 198194cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor 1982dde8c94873976632e3ada4d8d067e1e244184d51Eli Friedman unsigned getShuffleMaskIdx(ASTContext &Ctx, unsigned N) { 1983dde8c94873976632e3ada4d8d067e1e244184d51Eli Friedman assert((N < NumExprs - 2) && "Shuffle idx out of range!"); 19849a901bb63990574ff0bcc12ff851d7a71cff8ddbEli Friedman return getExpr(N+2)->EvaluateAsInt(Ctx).getZExtValue(); 1985d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman } 19861eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1987d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman // Iterators 1988d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman virtual child_iterator child_begin(); 1989d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman virtual child_iterator child_end(); 1990d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman}; 1991d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman 1992d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff/// ChooseExpr - GNU builtin-in function __builtin_choose_expr. 19931eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// This AST node is similar to the conditional operator (?:) in C, with 1994d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff/// the following exceptions: 19957976932a1c256d447316ffac58e9821417725e34Eli Friedman/// - the test expression must be a integer constant expression. 19967976932a1c256d447316ffac58e9821417725e34Eli Friedman/// - the expression returned acts like the chosen subexpression in every 19977976932a1c256d447316ffac58e9821417725e34Eli Friedman/// visible way: the type is the same as that of the chosen subexpression, 19987976932a1c256d447316ffac58e9821417725e34Eli Friedman/// and all predicates (whether it's an l-value, whether it's an integer 19997976932a1c256d447316ffac58e9821417725e34Eli Friedman/// constant expression, etc.) return the same result as for the chosen 20007976932a1c256d447316ffac58e9821417725e34Eli Friedman/// sub-expression. 2001d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroffclass ChooseExpr : public Expr { 20021237c673c07f9d827129ba02720108816abde562Ted Kremenek enum { COND, LHS, RHS, END_EXPR }; 20035549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Stmt* SubExprs[END_EXPR]; // Left/Middle/Right hand sides. 2004d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff SourceLocation BuiltinLoc, RParenLoc; 2005d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroffpublic: 2006d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff ChooseExpr(SourceLocation BLoc, Expr *cond, Expr *lhs, Expr *rhs, QualType t, 2007d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff SourceLocation RP) 20081eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump : Expr(ChooseExprClass, t), 20091237c673c07f9d827129ba02720108816abde562Ted Kremenek BuiltinLoc(BLoc), RParenLoc(RP) { 20101237c673c07f9d827129ba02720108816abde562Ted Kremenek SubExprs[COND] = cond; 20111237c673c07f9d827129ba02720108816abde562Ted Kremenek SubExprs[LHS] = lhs; 20121237c673c07f9d827129ba02720108816abde562Ted Kremenek SubExprs[RHS] = rhs; 20131eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump } 20147976932a1c256d447316ffac58e9821417725e34Eli Friedman 201544cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor /// \brief Build an empty __builtin_choose_expr. 201644cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor explicit ChooseExpr(EmptyShell Empty) : Expr(ChooseExprClass, Empty) { } 201744cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor 20187976932a1c256d447316ffac58e9821417725e34Eli Friedman /// isConditionTrue - Return whether the condition is true (i.e. not 20197976932a1c256d447316ffac58e9821417725e34Eli Friedman /// equal to zero). 202027437caadea35f84d550cd29f024fcf3ea240eecChris Lattner bool isConditionTrue(ASTContext &C) const; 20217976932a1c256d447316ffac58e9821417725e34Eli Friedman 20227976932a1c256d447316ffac58e9821417725e34Eli Friedman /// getChosenSubExpr - Return the subexpression chosen according to the 20237976932a1c256d447316ffac58e9821417725e34Eli Friedman /// condition. 20247976932a1c256d447316ffac58e9821417725e34Eli Friedman Expr *getChosenSubExpr(ASTContext &C) const { 20257976932a1c256d447316ffac58e9821417725e34Eli Friedman return isConditionTrue(C) ? getLHS() : getRHS(); 20267976932a1c256d447316ffac58e9821417725e34Eli Friedman } 20277976932a1c256d447316ffac58e9821417725e34Eli Friedman 20285549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getCond() const { return cast<Expr>(SubExprs[COND]); } 202944cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor void setCond(Expr *E) { SubExprs[COND] = E; } 20305549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getLHS() const { return cast<Expr>(SubExprs[LHS]); } 203144cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor void setLHS(Expr *E) { SubExprs[LHS] = E; } 20325549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getRHS() const { return cast<Expr>(SubExprs[RHS]); } 203344cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor void setRHS(Expr *E) { SubExprs[RHS] = E; } 203444cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor 203544cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor SourceLocation getBuiltinLoc() const { return BuiltinLoc; } 203644cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor void setBuiltinLoc(SourceLocation L) { BuiltinLoc = L; } 20371eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 203844cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor SourceLocation getRParenLoc() const { return RParenLoc; } 203944cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor void setRParenLoc(SourceLocation L) { RParenLoc = L; } 20401237c673c07f9d827129ba02720108816abde562Ted Kremenek 2041d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff virtual SourceRange getSourceRange() const { 2042d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff return SourceRange(BuiltinLoc, RParenLoc); 2043d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff } 2044d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff static bool classof(const Stmt *T) { 20451eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == ChooseExprClass; 2046d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff } 2047d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff static bool classof(const ChooseExpr *) { return true; } 20481eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 20491237c673c07f9d827129ba02720108816abde562Ted Kremenek // Iterators 20501237c673c07f9d827129ba02720108816abde562Ted Kremenek virtual child_iterator child_begin(); 20511237c673c07f9d827129ba02720108816abde562Ted Kremenek virtual child_iterator child_end(); 2052d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff}; 2053d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff 20542d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor/// GNUNullExpr - Implements the GNU __null extension, which is a name 20552d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor/// for a null pointer constant that has integral type (e.g., int or 20562d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor/// long) and is the same size and alignment as a pointer. The __null 20572d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor/// extension is typically only used by system headers, which define 20582d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor/// NULL as __null in C++ rather than using 0 (which is an integer 20592d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor/// that may not match the size of a pointer). 20602d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregorclass GNUNullExpr : public Expr { 20612d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor /// TokenLoc - The location of the __null keyword. 20622d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor SourceLocation TokenLoc; 20632d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor 20642d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregorpublic: 20651eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump GNUNullExpr(QualType Ty, SourceLocation Loc) 20662d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor : Expr(GNUNullExprClass, Ty), TokenLoc(Loc) { } 20672d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor 206844cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor /// \brief Build an empty GNU __null expression. 206944cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor explicit GNUNullExpr(EmptyShell Empty) : Expr(GNUNullExprClass, Empty) { } 207044cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor 20712d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor /// getTokenLocation - The location of the __null token. 20722d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor SourceLocation getTokenLocation() const { return TokenLoc; } 207344cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor void setTokenLocation(SourceLocation L) { TokenLoc = L; } 20742d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor 20752d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor virtual SourceRange getSourceRange() const { 20762d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor return SourceRange(TokenLoc); 20772d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor } 20782d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor static bool classof(const Stmt *T) { 20791eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == GNUNullExprClass; 20802d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor } 20812d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor static bool classof(const GNUNullExpr *) { return true; } 20821eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 20832d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor // Iterators 20842d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor virtual child_iterator child_begin(); 20852d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor virtual child_iterator child_end(); 20862d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor}; 20872d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor 20887c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson/// VAArgExpr, used for the builtin function __builtin_va_start. 20897c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlssonclass VAArgExpr : public Expr { 20905549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Stmt *Val; 20917c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson SourceLocation BuiltinLoc, RParenLoc; 20927c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlssonpublic: 20937c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson VAArgExpr(SourceLocation BLoc, Expr* e, QualType t, SourceLocation RPLoc) 20947c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson : Expr(VAArgExprClass, t), 20957c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson Val(e), 20967c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson BuiltinLoc(BLoc), 20977c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson RParenLoc(RPLoc) { } 20981eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2099d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor /// \brief Create an empty __builtin_va_start expression. 2100d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor explicit VAArgExpr(EmptyShell Empty) : Expr(VAArgExprClass, Empty) { } 2101d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor 21025549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek const Expr *getSubExpr() const { return cast<Expr>(Val); } 21035549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getSubExpr() { return cast<Expr>(Val); } 2104d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor void setSubExpr(Expr *E) { Val = E; } 2105d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor 2106d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor SourceLocation getBuiltinLoc() const { return BuiltinLoc; } 2107d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor void setBuiltinLoc(SourceLocation L) { BuiltinLoc = L; } 21081eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2109d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor SourceLocation getRParenLoc() const { return RParenLoc; } 2110d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor void setRParenLoc(SourceLocation L) { RParenLoc = L; } 2111d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor 21127c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson virtual SourceRange getSourceRange() const { 21137c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson return SourceRange(BuiltinLoc, RParenLoc); 21141eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump } 21157c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson static bool classof(const Stmt *T) { 21167c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson return T->getStmtClass() == VAArgExprClass; 21177c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson } 21187c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson static bool classof(const VAArgExpr *) { return true; } 21191eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 21207c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson // Iterators 21217c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson virtual child_iterator child_begin(); 21221eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump virtual child_iterator child_end(); 21237c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson}; 21241eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 21254c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// @brief Describes an C or C++ initializer list. 21264c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// 21274c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// InitListExpr describes an initializer list, which can be used to 21284c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// initialize objects of different types, including 21294c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// struct/class/union types, arrays, and vectors. For example: 21304c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// 21314c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// @code 21324c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// struct foo x = { 1, { 2, 3 } }; 21334c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// @endcode 2134196ef51bc4d008ec1c69851fb3b0f8d036065931Chris Lattner/// 21354c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// Prior to semantic analysis, an initializer list will represent the 21364c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// initializer list as written by the user, but will have the 21374c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// placeholder type "void". This initializer list is called the 21384c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// syntactic form of the initializer, and may contain C99 designated 21394c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// initializers (represented as DesignatedInitExprs), initializations 21404c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// of subobject members without explicit braces, and so on. Clients 21414c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// interested in the original syntax of the initializer list should 21424c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// use the syntactic form of the initializer list. 2143196ef51bc4d008ec1c69851fb3b0f8d036065931Chris Lattner/// 21444c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// After semantic analysis, the initializer list will represent the 21454c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// semantic form of the initializer, where the initializations of all 21464c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// subobjects are made explicit with nested InitListExpr nodes and 21474c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// C99 designators have been eliminated by placing the designated 21484c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// initializations into the subobject they initialize. Additionally, 21494c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// any "holes" in the initialization, where no initializer has been 21504c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// specified for a particular subobject, will be replaced with 21513498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor/// implicitly-generated ImplicitValueInitExpr expressions that 21524c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// value-initialize the subobjects. Note, however, that the 21534c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// initializer lists may still have fewer initializers than there are 21544c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// elements to initialize within the object. 2155196ef51bc4d008ec1c69851fb3b0f8d036065931Chris Lattner/// 21564c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// Given the semantic form of the initializer list, one can retrieve 21574c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// the original syntactic form of that initializer list (if it 21584c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// exists) using getSyntacticForm(). Since many initializer lists 21594c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// have the same syntactic and semantic forms, getSyntacticForm() may 21604c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// return NULL, indicating that the current initializer list also 21614c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// serves as its syntactic form. 216266b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlssonclass InitListExpr : public Expr { 216341ef0c3472a3d09c29bc1792f3d26842f2b8a695Douglas Gregor // FIXME: Eliminate this vector in favor of ASTContext allocation 21645549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek std::vector<Stmt *> InitExprs; 216566b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson SourceLocation LBraceLoc, RBraceLoc; 21661eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 21674c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// Contains the initializer list that describes the syntactic form 21684c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// written in the source code. 21694c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor InitListExpr *SyntacticForm; 21704c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor 21710bb76897bedb8b747efc6523efb432fc24966118Douglas Gregor /// If this initializer list initializes a union, specifies which 21720bb76897bedb8b747efc6523efb432fc24966118Douglas Gregor /// field within the union will be initialized. 21730bb76897bedb8b747efc6523efb432fc24966118Douglas Gregor FieldDecl *UnionFieldInit; 21740bb76897bedb8b747efc6523efb432fc24966118Douglas Gregor 2175a9c878086036de36482cc21e35a33cabe9699b0aDouglas Gregor /// Whether this initializer list originally had a GNU array-range 2176a9c878086036de36482cc21e35a33cabe9699b0aDouglas Gregor /// designator in it. This is a temporary marker used by CodeGen. 2177a9c878086036de36482cc21e35a33cabe9699b0aDouglas Gregor bool HadArrayRangeDesignator; 2178a9c878086036de36482cc21e35a33cabe9699b0aDouglas Gregor 217966b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlssonpublic: 218066b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson InitListExpr(SourceLocation lbraceloc, Expr **initexprs, unsigned numinits, 21814c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor SourceLocation rbraceloc); 2182d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor 2183d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor /// \brief Build an empty initializer list. 2184d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor explicit InitListExpr(EmptyShell Empty) : Expr(InitListExprClass, Empty) { } 21851eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2186c5ae899b4bbf65488445316c63168079177db0edSteve Naroff unsigned getNumInits() const { return InitExprs.size(); } 21871eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 21881eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump const Expr* getInit(unsigned Init) const { 2189c5ae899b4bbf65488445316c63168079177db0edSteve Naroff assert(Init < getNumInits() && "Initializer access out of range!"); 21904c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor return cast_or_null<Expr>(InitExprs[Init]); 219166b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson } 21921eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 21931eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump Expr* getInit(unsigned Init) { 2194c5ae899b4bbf65488445316c63168079177db0edSteve Naroff assert(Init < getNumInits() && "Initializer access out of range!"); 21954c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor return cast_or_null<Expr>(InitExprs[Init]); 219666b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson } 21971eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 21981eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump void setInit(unsigned Init, Expr *expr) { 2199c5ae899b4bbf65488445316c63168079177db0edSteve Naroff assert(Init < getNumInits() && "Initializer access out of range!"); 22009e8925e72f53a9e2c4633b6b48e965ed01702fe4Steve Naroff InitExprs[Init] = expr; 22019e8925e72f53a9e2c4633b6b48e965ed01702fe4Steve Naroff } 2202c5ae899b4bbf65488445316c63168079177db0edSteve Naroff 2203fa2192042f223b5122a9e17719930f77634fd31fDouglas Gregor /// \brief Reserve space for some number of initializers. 2204fa2192042f223b5122a9e17719930f77634fd31fDouglas Gregor void reserveInits(unsigned NumInits); 22051eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 22064c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// @brief Specify the number of initializers 22074c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// 22084c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// If there are more than @p NumInits initializers, the remaining 22094c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// initializers will be destroyed. If there are fewer than @p 22104c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// NumInits initializers, NULL expressions will be added for the 22114c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// unknown initializers. 22124c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor void resizeInits(ASTContext &Context, unsigned NumInits); 22134c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor 22144c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// @brief Updates the initializer at index @p Init with the new 22154c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// expression @p expr, and returns the old expression at that 22164c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// location. 22174c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// 22184c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// When @p Init is out of range for this initializer list, the 22194c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// initializer list will be extended with NULL expressions to 22204c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// accomodate the new entry. 22214c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor Expr *updateInit(unsigned Init, Expr *expr); 2222c5ae899b4bbf65488445316c63168079177db0edSteve Naroff 22230bb76897bedb8b747efc6523efb432fc24966118Douglas Gregor /// \brief If this initializes a union, specifies which field in the 22240bb76897bedb8b747efc6523efb432fc24966118Douglas Gregor /// union to initialize. 22250bb76897bedb8b747efc6523efb432fc24966118Douglas Gregor /// 22260bb76897bedb8b747efc6523efb432fc24966118Douglas Gregor /// Typically, this field is the first named field within the 22270bb76897bedb8b747efc6523efb432fc24966118Douglas Gregor /// union. However, a designated initializer can specify the 22280bb76897bedb8b747efc6523efb432fc24966118Douglas Gregor /// initialization of a different field within the union. 22290bb76897bedb8b747efc6523efb432fc24966118Douglas Gregor FieldDecl *getInitializedFieldInUnion() { return UnionFieldInit; } 22300bb76897bedb8b747efc6523efb432fc24966118Douglas Gregor void setInitializedFieldInUnion(FieldDecl *FD) { UnionFieldInit = FD; } 22310bb76897bedb8b747efc6523efb432fc24966118Douglas Gregor 2232c5ae899b4bbf65488445316c63168079177db0edSteve Naroff // Explicit InitListExpr's originate from source code (and have valid source 2233c5ae899b4bbf65488445316c63168079177db0edSteve Naroff // locations). Implicit InitListExpr's are created by the semantic analyzer. 2234b3eef68111ffc220e449be96da1747998c057790Douglas Gregor bool isExplicit() { 2235b3eef68111ffc220e449be96da1747998c057790Douglas Gregor return LBraceLoc.isValid() && RBraceLoc.isValid(); 2236b3eef68111ffc220e449be96da1747998c057790Douglas Gregor } 22371eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2238d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor SourceLocation getLBraceLoc() const { return LBraceLoc; } 2239d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor void setLBraceLoc(SourceLocation Loc) { LBraceLoc = Loc; } 2240d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor SourceLocation getRBraceLoc() const { return RBraceLoc; } 224187fd703e097c27d63479cb83b687d4000a22bbb1Douglas Gregor void setRBraceLoc(SourceLocation Loc) { RBraceLoc = Loc; } 224287fd703e097c27d63479cb83b687d4000a22bbb1Douglas Gregor 22434c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// @brief Retrieve the initializer list that describes the 22444c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// syntactic form of the initializer. 22454c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// 22461eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /// 22474c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor InitListExpr *getSyntacticForm() const { return SyntacticForm; } 22484c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor void setSyntacticForm(InitListExpr *Init) { SyntacticForm = Init; } 22494c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor 2250a9c878086036de36482cc21e35a33cabe9699b0aDouglas Gregor bool hadArrayRangeDesignator() const { return HadArrayRangeDesignator; } 22511eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump void sawArrayRangeDesignator(bool ARD = true) { 2252d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor HadArrayRangeDesignator = ARD; 2253a9c878086036de36482cc21e35a33cabe9699b0aDouglas Gregor } 2254a9c878086036de36482cc21e35a33cabe9699b0aDouglas Gregor 225566b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson virtual SourceRange getSourceRange() const { 225666b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson return SourceRange(LBraceLoc, RBraceLoc); 22571eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump } 225866b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson static bool classof(const Stmt *T) { 22591eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == InitListExprClass; 226066b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson } 226166b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson static bool classof(const InitListExpr *) { return true; } 22621eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 226366b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson // Iterators 226466b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson virtual child_iterator child_begin(); 226566b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson virtual child_iterator child_end(); 22661eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 22677fcfa4a9b5054bc2a3bc65093f9d2e9e67a70838Ted Kremenek typedef std::vector<Stmt *>::iterator iterator; 22687fcfa4a9b5054bc2a3bc65093f9d2e9e67a70838Ted Kremenek typedef std::vector<Stmt *>::reverse_iterator reverse_iterator; 22691eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 22707fcfa4a9b5054bc2a3bc65093f9d2e9e67a70838Ted Kremenek iterator begin() { return InitExprs.begin(); } 22717fcfa4a9b5054bc2a3bc65093f9d2e9e67a70838Ted Kremenek iterator end() { return InitExprs.end(); } 22727fcfa4a9b5054bc2a3bc65093f9d2e9e67a70838Ted Kremenek reverse_iterator rbegin() { return InitExprs.rbegin(); } 22737fcfa4a9b5054bc2a3bc65093f9d2e9e67a70838Ted Kremenek reverse_iterator rend() { return InitExprs.rend(); } 227466b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson}; 227566b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson 227605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// @brief Represents a C99 designated initializer expression. 227705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// 227805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// A designated initializer expression (C99 6.7.8) contains one or 227905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// more designators (which can be field designators, array 228005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// designators, or GNU array-range designators) followed by an 228105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// expression that initializes the field or element(s) that the 228205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// designators refer to. For example, given: 22831eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// 228405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// @code 228505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// struct point { 228605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// double x; 228705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// double y; 228805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// }; 228905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// struct point ptarray[10] = { [2].y = 1.0, [2].x = 2.0, [0].x = 1.0 }; 229005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// @endcode 229105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// 229205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// The InitListExpr contains three DesignatedInitExprs, the first of 229305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// which covers @c [2].y=1.0. This DesignatedInitExpr will have two 229405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// designators, one array designator for @c [2] followed by one field 229505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// designator for @c .y. The initalization expression will be 1.0. 229605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregorclass DesignatedInitExpr : public Expr { 2297ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregorpublic: 2298ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor /// \brief Forward declaration of the Designator class. 2299ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor class Designator; 2300ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor 2301ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregorprivate: 230205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// The location of the '=' or ':' prior to the actual initializer 230305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// expression. 230405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor SourceLocation EqualOrColonLoc; 230505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 2306eeae8f072748affce25ab4064982626361293390Douglas Gregor /// Whether this designated initializer used the GNU deprecated 230705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// syntax rather than the C99 '=' syntax. 2308eeae8f072748affce25ab4064982626361293390Douglas Gregor bool GNUSyntax : 1; 230905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 231005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// The number of designators in this initializer expression. 231105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor unsigned NumDesignators : 15; 231205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 2313ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor /// \brief The designators in this designated initialization 2314ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor /// expression. 2315ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor Designator *Designators; 2316ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor 231705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// The number of subexpressions of this initializer expression, 231805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// which contains both the initializer and any additional 231905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// expressions used by array and array-range designators. 232005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor unsigned NumSubExprs : 16; 232105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 2322ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor 23231eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump DesignatedInitExpr(QualType Ty, unsigned NumDesignators, 2324ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor const Designator *Designators, 2325eeae8f072748affce25ab4064982626361293390Douglas Gregor SourceLocation EqualOrColonLoc, bool GNUSyntax, 23269ea62768fca25d829d80199cf4f8cf0f4dd39251Douglas Gregor Expr **IndexExprs, unsigned NumIndexExprs, 23279ea62768fca25d829d80199cf4f8cf0f4dd39251Douglas Gregor Expr *Init); 232805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 2329d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor explicit DesignatedInitExpr(unsigned NumSubExprs) 2330d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor : Expr(DesignatedInitExprClass, EmptyShell()), 2331d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor NumDesignators(0), Designators(0), NumSubExprs(NumSubExprs) { } 2332d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor 233342602bb40aefcc2751d4078ba88aacf4d965c9bdDouglas Gregorprotected: 23341eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump virtual void DoDestroy(ASTContext &C); 233542602bb40aefcc2751d4078ba88aacf4d965c9bdDouglas Gregor 233605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregorpublic: 233705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// A field designator, e.g., ".x". 233805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor struct FieldDesignator { 233905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// Refers to the field that is being initialized. The low bit 234005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// of this field determines whether this is actually a pointer 234105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// to an IdentifierInfo (if 1) or a FieldDecl (if 0). When 234205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// initially constructed, a field designator will store an 234305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// IdentifierInfo*. After semantic analysis has resolved that 234405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// name, the field designator will instead store a FieldDecl*. 234505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor uintptr_t NameOrField; 23461eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 234705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// The location of the '.' in the designated initializer. 234805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor unsigned DotLoc; 23491eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 235005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// The location of the field name in the designated initializer. 235105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor unsigned FieldLoc; 235205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor }; 235305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 235405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// An array or GNU array-range designator, e.g., "[9]" or "[10..15]". 235505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor struct ArrayOrRangeDesignator { 235605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// Location of the first index expression within the designated 235705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// initializer expression's list of subexpressions. 235805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor unsigned Index; 235905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// The location of the '[' starting the array range designator. 236005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor unsigned LBracketLoc; 236105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// The location of the ellipsis separating the start and end 236205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// indices. Only valid for GNU array-range designators. 236305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor unsigned EllipsisLoc; 236405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// The location of the ']' terminating the array range designator. 23651eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump unsigned RBracketLoc; 236605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor }; 236705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 236805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// @brief Represents a single C99 designator. 236905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// 237005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// @todo This class is infuriatingly similar to clang::Designator, 237105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// but minor differences (storing indices vs. storing pointers) 237205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// keep us from reusing it. Try harder, later, to rectify these 237305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// differences. 237405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor class Designator { 237505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// @brief The kind of designator this describes. 237605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor enum { 237705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor FieldDesignator, 237805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor ArrayDesignator, 237905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor ArrayRangeDesignator 238005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } Kind; 238105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 238205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor union { 238305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// A field designator, e.g., ".x". 238405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor struct FieldDesignator Field; 238505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// An array or GNU array-range designator, e.g., "[9]" or "[10..15]". 238605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor struct ArrayOrRangeDesignator ArrayOrRange; 238705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor }; 238805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor friend class DesignatedInitExpr; 238905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 239005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor public: 2391ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor Designator() {} 2392ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor 239305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// @brief Initializes a field designator. 23941eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump Designator(const IdentifierInfo *FieldName, SourceLocation DotLoc, 23951eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump SourceLocation FieldLoc) 239605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor : Kind(FieldDesignator) { 239705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor Field.NameOrField = reinterpret_cast<uintptr_t>(FieldName) | 0x01; 239805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor Field.DotLoc = DotLoc.getRawEncoding(); 239905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor Field.FieldLoc = FieldLoc.getRawEncoding(); 240005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } 240105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 240205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// @brief Initializes an array designator. 24031eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump Designator(unsigned Index, SourceLocation LBracketLoc, 240405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor SourceLocation RBracketLoc) 240505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor : Kind(ArrayDesignator) { 240605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor ArrayOrRange.Index = Index; 240705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor ArrayOrRange.LBracketLoc = LBracketLoc.getRawEncoding(); 240805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor ArrayOrRange.EllipsisLoc = SourceLocation().getRawEncoding(); 240905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor ArrayOrRange.RBracketLoc = RBracketLoc.getRawEncoding(); 241005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } 241105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 241205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// @brief Initializes a GNU array-range designator. 24131eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump Designator(unsigned Index, SourceLocation LBracketLoc, 241405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor SourceLocation EllipsisLoc, SourceLocation RBracketLoc) 241505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor : Kind(ArrayRangeDesignator) { 241605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor ArrayOrRange.Index = Index; 241705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor ArrayOrRange.LBracketLoc = LBracketLoc.getRawEncoding(); 241805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor ArrayOrRange.EllipsisLoc = EllipsisLoc.getRawEncoding(); 241905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor ArrayOrRange.RBracketLoc = RBracketLoc.getRawEncoding(); 242005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } 242105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 242205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor bool isFieldDesignator() const { return Kind == FieldDesignator; } 242305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor bool isArrayDesignator() const { return Kind == ArrayDesignator; } 242405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor bool isArrayRangeDesignator() const { return Kind == ArrayRangeDesignator; } 242505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 242605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor IdentifierInfo * getFieldName(); 242705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 242805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor FieldDecl *getField() { 242905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor assert(Kind == FieldDesignator && "Only valid on a field designator"); 243005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor if (Field.NameOrField & 0x01) 243105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor return 0; 243205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor else 243305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor return reinterpret_cast<FieldDecl *>(Field.NameOrField); 243405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } 243505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 243605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor void setField(FieldDecl *FD) { 243705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor assert(Kind == FieldDesignator && "Only valid on a field designator"); 243805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor Field.NameOrField = reinterpret_cast<uintptr_t>(FD); 243905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } 244005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 244187f55cf59e82f246d8605733e9300d0c5f6830a6Douglas Gregor SourceLocation getDotLoc() const { 244287f55cf59e82f246d8605733e9300d0c5f6830a6Douglas Gregor assert(Kind == FieldDesignator && "Only valid on a field designator"); 244387f55cf59e82f246d8605733e9300d0c5f6830a6Douglas Gregor return SourceLocation::getFromRawEncoding(Field.DotLoc); 244487f55cf59e82f246d8605733e9300d0c5f6830a6Douglas Gregor } 244587f55cf59e82f246d8605733e9300d0c5f6830a6Douglas Gregor 244605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor SourceLocation getFieldLoc() const { 244705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor assert(Kind == FieldDesignator && "Only valid on a field designator"); 244805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor return SourceLocation::getFromRawEncoding(Field.FieldLoc); 244905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } 245005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 245105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor SourceLocation getLBracketLoc() const { 245205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor assert((Kind == ArrayDesignator || Kind == ArrayRangeDesignator) && 245305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor "Only valid on an array or array-range designator"); 245405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor return SourceLocation::getFromRawEncoding(ArrayOrRange.LBracketLoc); 245505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } 245605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 245705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor SourceLocation getRBracketLoc() const { 245805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor assert((Kind == ArrayDesignator || Kind == ArrayRangeDesignator) && 245905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor "Only valid on an array or array-range designator"); 246005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor return SourceLocation::getFromRawEncoding(ArrayOrRange.RBracketLoc); 246105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } 246205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 246305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor SourceLocation getEllipsisLoc() const { 246405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor assert(Kind == ArrayRangeDesignator && 246505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor "Only valid on an array-range designator"); 246605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor return SourceLocation::getFromRawEncoding(ArrayOrRange.EllipsisLoc); 246705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } 24684c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor 2469d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor unsigned getFirstExprIndex() const { 2470d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor assert((Kind == ArrayDesignator || Kind == ArrayRangeDesignator) && 2471d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor "Only valid on an array or array-range designator"); 2472d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor return ArrayOrRange.Index; 2473d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor } 2474d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor 24754c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor SourceLocation getStartLocation() const { 24764c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor if (Kind == FieldDesignator) 24774c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor return getDotLoc().isInvalid()? getFieldLoc() : getDotLoc(); 24784c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor else 24794c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor return getLBracketLoc(); 24804c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor } 248105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor }; 248205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 24831eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static DesignatedInitExpr *Create(ASTContext &C, Designator *Designators, 248405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor unsigned NumDesignators, 248505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor Expr **IndexExprs, unsigned NumIndexExprs, 248605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor SourceLocation EqualOrColonLoc, 2487eeae8f072748affce25ab4064982626361293390Douglas Gregor bool GNUSyntax, Expr *Init); 248805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 2489d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor static DesignatedInitExpr *CreateEmpty(ASTContext &C, unsigned NumIndexExprs); 2490d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor 249105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// @brief Returns the number of designators in this initializer. 249205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor unsigned size() const { return NumDesignators; } 249305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 249405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor // Iterator access to the designators. 249505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor typedef Designator* designators_iterator; 2496ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor designators_iterator designators_begin() { return Designators; } 24971eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump designators_iterator designators_end() { 24981eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return Designators + NumDesignators; 2499ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor } 250005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 2501711997184366d584c9c437102cae1e9d9927b986Douglas Gregor Designator *getDesignator(unsigned Idx) { return &designators_begin()[Idx]; } 2502711997184366d584c9c437102cae1e9d9927b986Douglas Gregor 2503d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor void setDesignators(const Designator *Desigs, unsigned NumDesigs); 2504d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor 250505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor Expr *getArrayIndex(const Designator& D); 250605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor Expr *getArrayRangeStart(const Designator& D); 250705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor Expr *getArrayRangeEnd(const Designator& D); 250805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 250905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// @brief Retrieve the location of the '=' that precedes the 251005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// initializer value itself, if present. 251105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor SourceLocation getEqualOrColonLoc() const { return EqualOrColonLoc; } 2512d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor void setEqualOrColonLoc(SourceLocation L) { EqualOrColonLoc = L; } 251305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 251405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// @brief Determines whether this designated initializer used the 2515eeae8f072748affce25ab4064982626361293390Douglas Gregor /// deprecated GNU syntax for designated initializers. 2516eeae8f072748affce25ab4064982626361293390Douglas Gregor bool usesGNUSyntax() const { return GNUSyntax; } 2517d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor void setGNUSyntax(bool GNU) { GNUSyntax = GNU; } 251805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 251905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// @brief Retrieve the initializer value. 25201eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump Expr *getInit() const { 252105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor return cast<Expr>(*const_cast<DesignatedInitExpr*>(this)->child_begin()); 252205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } 252305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 252405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor void setInit(Expr *init) { 252505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor *child_begin() = init; 252605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } 252705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 2528d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor /// \brief Retrieve the total number of subexpressions in this 2529d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor /// designated initializer expression, including the actual 2530d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor /// initialized value and any expressions that occur within array 2531d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor /// and array-range designators. 2532d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor unsigned getNumSubExprs() const { return NumSubExprs; } 2533d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor 2534d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor Expr *getSubExpr(unsigned Idx) { 2535d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor assert(Idx < NumSubExprs && "Subscript out of range"); 2536d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor char* Ptr = static_cast<char*>(static_cast<void *>(this)); 2537d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor Ptr += sizeof(DesignatedInitExpr); 2538d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor return reinterpret_cast<Expr**>(reinterpret_cast<void**>(Ptr))[Idx]; 2539d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor } 2540d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor 2541d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor void setSubExpr(unsigned Idx, Expr *E) { 2542d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor assert(Idx < NumSubExprs && "Subscript out of range"); 2543d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor char* Ptr = static_cast<char*>(static_cast<void *>(this)); 2544d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor Ptr += sizeof(DesignatedInitExpr); 2545d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor reinterpret_cast<Expr**>(reinterpret_cast<void**>(Ptr))[Idx] = E; 2546d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor } 2547d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor 2548ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor /// \brief Replaces the designator at index @p Idx with the series 2549ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor /// of designators in [First, Last). 25501eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump void ExpandDesignator(unsigned Idx, const Designator *First, 2551ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor const Designator *Last); 2552ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor 255305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor virtual SourceRange getSourceRange() const; 255405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 255505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor static bool classof(const Stmt *T) { 25561eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == DesignatedInitExprClass; 255705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } 255805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor static bool classof(const DesignatedInitExpr *) { return true; } 255905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 256005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor // Iterators 256105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor virtual child_iterator child_begin(); 25621eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump virtual child_iterator child_end(); 25633498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor}; 25643498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor 25653498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor/// \brief Represents an implicitly-generated value initialization of 25663498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor/// an object of a given type. 25673498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor/// 25681a51b4a11b7db25cac2134249711ecaaf9d1c0a8Douglas Gregor/// Implicit value initializations occur within semantic initializer 25691a51b4a11b7db25cac2134249711ecaaf9d1c0a8Douglas Gregor/// list expressions (InitListExpr) as placeholders for subobject 25703498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor/// initializations not explicitly specified by the user. 25711a51b4a11b7db25cac2134249711ecaaf9d1c0a8Douglas Gregor/// 25721a51b4a11b7db25cac2134249711ecaaf9d1c0a8Douglas Gregor/// \see InitListExpr 25731eb4433ac451dc16f4133a88af2d002ac26c58efMike Stumpclass ImplicitValueInitExpr : public Expr { 25743498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregorpublic: 25751eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump explicit ImplicitValueInitExpr(QualType ty) 25763498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor : Expr(ImplicitValueInitExprClass, ty) { } 25773498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor 2578d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor /// \brief Construct an empty implicit value initialization. 2579d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor explicit ImplicitValueInitExpr(EmptyShell Empty) 2580d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor : Expr(ImplicitValueInitExprClass, Empty) { } 2581d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor 25821eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 25833498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor return T->getStmtClass() == ImplicitValueInitExprClass; 25843498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor } 25853498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor static bool classof(const ImplicitValueInitExpr *) { return true; } 25863498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor 25873498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor virtual SourceRange getSourceRange() const { 25883498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor return SourceRange(); 25893498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor } 25903498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor 25913498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor // Iterators 25923498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor virtual child_iterator child_begin(); 25931eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump virtual child_iterator child_end(); 259405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor}; 259505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 25962ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman 25972ef13e5abef0570a9f567b4671367275c05d4d34Nate Begemanclass ParenListExpr : public Expr { 25982ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman Stmt **Exprs; 25992ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman unsigned NumExprs; 26002ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman SourceLocation LParenLoc, RParenLoc; 26012ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman 26021eb4433ac451dc16f4133a88af2d002ac26c58efMike Stumpprotected: 26032ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman virtual void DoDestroy(ASTContext& C); 26041eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 26052ef13e5abef0570a9f567b4671367275c05d4d34Nate Begemanpublic: 26061eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump ParenListExpr(ASTContext& C, SourceLocation lparenloc, Expr **exprs, 26072ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman unsigned numexprs, SourceLocation rparenloc); 26082ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman 26092ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman ~ParenListExpr() {} 26102ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman 26112ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman /// \brief Build an empty paren list. 26122ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman //explicit ParenListExpr(EmptyShell Empty) : Expr(ParenListExprClass, Empty) { } 26131eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 26142ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman unsigned getNumExprs() const { return NumExprs; } 26151eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 26161eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump const Expr* getExpr(unsigned Init) const { 26172ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman assert(Init < getNumExprs() && "Initializer access out of range!"); 26182ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman return cast_or_null<Expr>(Exprs[Init]); 26192ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman } 26201eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 26211eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump Expr* getExpr(unsigned Init) { 26222ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman assert(Init < getNumExprs() && "Initializer access out of range!"); 26232ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman return cast_or_null<Expr>(Exprs[Init]); 26242ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman } 26252ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman 262683ddad3ab513f5d73698cf9fbeb4ed3f011bc3b9Douglas Gregor Expr **getExprs() { return reinterpret_cast<Expr **>(Exprs); } 26271eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 26282ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman SourceLocation getLParenLoc() const { return LParenLoc; } 26292ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman SourceLocation getRParenLoc() const { return RParenLoc; } 26302ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman 26312ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman virtual SourceRange getSourceRange() const { 26322ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman return SourceRange(LParenLoc, RParenLoc); 26331eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump } 26342ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman static bool classof(const Stmt *T) { 26351eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == ParenListExprClass; 26362ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman } 26372ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman static bool classof(const ParenListExpr *) { return true; } 26381eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 26392ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman // Iterators 26402ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman virtual child_iterator child_begin(); 26412ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman virtual child_iterator child_end(); 26422ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman}; 26432ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman 26441eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 26454eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff//===----------------------------------------------------------------------===// 26464eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff// Clang Extensions 26474eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff//===----------------------------------------------------------------------===// 26484eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff 2649a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner 2650a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner/// ExtVectorElementExpr - This represents access to specific elements of a 2651a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner/// vector, and may occur on the left hand side or right hand side. For example 2652a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner/// the following is legal: "V.xy = V.zw" if V is a 4 element extended vector. 2653a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner/// 265473525de7fd9bdd534382dc89a24f1f76db3e04b9Chris Lattner/// Note that the base may have either vector or pointer to vector type, just 265573525de7fd9bdd534382dc89a24f1f76db3e04b9Chris Lattner/// like a struct field reference. 265673525de7fd9bdd534382dc89a24f1f76db3e04b9Chris Lattner/// 2657a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattnerclass ExtVectorElementExpr : public Expr { 2658a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner Stmt *Base; 2659d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor IdentifierInfo *Accessor; 2660a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner SourceLocation AccessorLoc; 2661a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattnerpublic: 2662a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner ExtVectorElementExpr(QualType ty, Expr *base, IdentifierInfo &accessor, 2663a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner SourceLocation loc) 26641eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump : Expr(ExtVectorElementExprClass, ty), 2665d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor Base(base), Accessor(&accessor), AccessorLoc(loc) {} 26661eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2667d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor /// \brief Build an empty vector element expression. 2668d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor explicit ExtVectorElementExpr(EmptyShell Empty) 2669d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor : Expr(ExtVectorElementExprClass, Empty) { } 2670d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor 2671a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner const Expr *getBase() const { return cast<Expr>(Base); } 2672a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner Expr *getBase() { return cast<Expr>(Base); } 2673d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor void setBase(Expr *E) { Base = E; } 2674d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor 2675d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor IdentifierInfo &getAccessor() const { return *Accessor; } 2676d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor void setAccessor(IdentifierInfo *II) { Accessor = II; } 2677d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor 2678d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor SourceLocation getAccessorLoc() const { return AccessorLoc; } 2679d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor void setAccessorLoc(SourceLocation L) { AccessorLoc = L; } 2680d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor 2681a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner /// getNumElements - Get the number of components being selected. 2682a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner unsigned getNumElements() const; 26831eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2684a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner /// containsDuplicateElements - Return true if any element access is 2685a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner /// repeated. 2686a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner bool containsDuplicateElements() const; 26871eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2688a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner /// getEncodedElementAccess - Encode the elements accessed into an llvm 2689a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner /// aggregate Constant of ConstantInt(s). 2690a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner void getEncodedElementAccess(llvm::SmallVectorImpl<unsigned> &Elts) const; 26911eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2692a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner virtual SourceRange getSourceRange() const { 2693a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner return SourceRange(getBase()->getLocStart(), AccessorLoc); 2694a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner } 26951eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 26962140e904dbe53657339cb5b1cc13de563ca0d1fcChris Lattner /// isArrow - Return true if the base expression is a pointer to vector, 26972140e904dbe53657339cb5b1cc13de563ca0d1fcChris Lattner /// return false if the base expression is a vector. 26982140e904dbe53657339cb5b1cc13de563ca0d1fcChris Lattner bool isArrow() const; 26991eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 27001eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 27011eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == ExtVectorElementExprClass; 2702a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner } 2703a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner static bool classof(const ExtVectorElementExpr *) { return true; } 27041eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2705a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner // Iterators 2706a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner virtual child_iterator child_begin(); 2707a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner virtual child_iterator child_end(); 2708a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner}; 2709a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner 2710a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner 271156ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroff/// BlockExpr - Adaptor class for mixing a BlockDecl with expressions. 27129c3c902835ef7d37300463ad47176ec21a67dc8bSteve Naroff/// ^{ statement-body } or ^(int arg1, float arg2){ statement-body } 27134eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroffclass BlockExpr : public Expr { 271456ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroffprotected: 271556ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroff BlockDecl *TheBlock; 2716b83d287bc7f47d36fb0751a481e2ef9308b37252Mike Stump bool HasBlockDeclRefExprs; 27174eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroffpublic: 2718b83d287bc7f47d36fb0751a481e2ef9308b37252Mike Stump BlockExpr(BlockDecl *BD, QualType ty, bool hasBlockDeclRefExprs) 27191eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump : Expr(BlockExprClass, ty), 2720b83d287bc7f47d36fb0751a481e2ef9308b37252Mike Stump TheBlock(BD), HasBlockDeclRefExprs(hasBlockDeclRefExprs) {} 27219c3c902835ef7d37300463ad47176ec21a67dc8bSteve Naroff 272284af7c27cdc615ff917a501d61256b4049383c97Douglas Gregor /// \brief Build an empty block expression. 272384af7c27cdc615ff917a501d61256b4049383c97Douglas Gregor explicit BlockExpr(EmptyShell Empty) : Expr(BlockExprClass, Empty) { } 272484af7c27cdc615ff917a501d61256b4049383c97Douglas Gregor 2725d5cab5435371b8cc74a9e05ebd40b5995ebad149Anders Carlsson const BlockDecl *getBlockDecl() const { return TheBlock; } 272656ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroff BlockDecl *getBlockDecl() { return TheBlock; } 272784af7c27cdc615ff917a501d61256b4049383c97Douglas Gregor void setBlockDecl(BlockDecl *BD) { TheBlock = BD; } 272884af7c27cdc615ff917a501d61256b4049383c97Douglas Gregor 272956ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroff // Convenience functions for probing the underlying BlockDecl. 273056ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroff SourceLocation getCaretLocation() const; 273156ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroff const Stmt *getBody() const; 273256ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroff Stmt *getBody(); 27339c3c902835ef7d37300463ad47176ec21a67dc8bSteve Naroff 27349c3c902835ef7d37300463ad47176ec21a67dc8bSteve Naroff virtual SourceRange getSourceRange() const { 273556ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroff return SourceRange(getCaretLocation(), getBody()->getLocEnd()); 27369c3c902835ef7d37300463ad47176ec21a67dc8bSteve Naroff } 27379c3c902835ef7d37300463ad47176ec21a67dc8bSteve Naroff 273856ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroff /// getFunctionType - Return the underlying function type for this block. 273956ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroff const FunctionType *getFunctionType() const; 274056ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroff 2741b83d287bc7f47d36fb0751a481e2ef9308b37252Mike Stump /// hasBlockDeclRefExprs - Return true iff the block has BlockDeclRefExpr 27425b54b88c4082bb81b8b341b622fda9a85cbd5fadChris Lattner /// inside of the block that reference values outside the block. 2743b83d287bc7f47d36fb0751a481e2ef9308b37252Mike Stump bool hasBlockDeclRefExprs() const { return HasBlockDeclRefExprs; } 274484af7c27cdc615ff917a501d61256b4049383c97Douglas Gregor void setHasBlockDeclRefExprs(bool BDRE) { HasBlockDeclRefExprs = BDRE; } 2745b83d287bc7f47d36fb0751a481e2ef9308b37252Mike Stump 27461eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 27479c3c902835ef7d37300463ad47176ec21a67dc8bSteve Naroff return T->getStmtClass() == BlockExprClass; 27484eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff } 27494eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff static bool classof(const BlockExpr *) { return true; } 27501eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 27514eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff // Iterators 27524eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff virtual child_iterator child_begin(); 27534eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff virtual child_iterator child_end(); 27544eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff}; 27551eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 27564eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff/// BlockDeclRefExpr - A reference to a declared variable, function, 27574eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff/// enum, etc. 27584eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroffclass BlockDeclRefExpr : public Expr { 27591eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump ValueDecl *D; 27604eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff SourceLocation Loc; 27617d5c74ecbbd8719436c071f38657bc8e97ee4a24Fariborz Jahanian bool IsByRef : 1; 27627d5c74ecbbd8719436c071f38657bc8e97ee4a24Fariborz Jahanian bool ConstQualAdded : 1; 27634eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroffpublic: 27641eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump BlockDeclRefExpr(ValueDecl *d, QualType t, SourceLocation l, bool ByRef, 27657d5c74ecbbd8719436c071f38657bc8e97ee4a24Fariborz Jahanian bool constAdded = false) : 27667d5c74ecbbd8719436c071f38657bc8e97ee4a24Fariborz Jahanian Expr(BlockDeclRefExprClass, t), D(d), Loc(l), IsByRef(ByRef), 27677d5c74ecbbd8719436c071f38657bc8e97ee4a24Fariborz Jahanian ConstQualAdded(constAdded) {} 276894cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor 276994cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor // \brief Build an empty reference to a declared variable in a 277094cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor // block. 277194cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor explicit BlockDeclRefExpr(EmptyShell Empty) 277294cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor : Expr(BlockDeclRefExprClass, Empty) { } 27731eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 27744eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff ValueDecl *getDecl() { return D; } 27754eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff const ValueDecl *getDecl() const { return D; } 277694cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor void setDecl(ValueDecl *VD) { D = VD; } 277794cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor 277894cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor SourceLocation getLocation() const { return Loc; } 277994cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor void setLocation(SourceLocation L) { Loc = L; } 278094cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor 27814eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff virtual SourceRange getSourceRange() const { return SourceRange(Loc); } 27821eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 27834eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff bool isByRef() const { return IsByRef; } 278494cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor void setByRef(bool BR) { IsByRef = BR; } 27851eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 27867d5c74ecbbd8719436c071f38657bc8e97ee4a24Fariborz Jahanian bool isConstQualAdded() const { return ConstQualAdded; } 27877d5c74ecbbd8719436c071f38657bc8e97ee4a24Fariborz Jahanian void setConstQualAdded(bool C) { ConstQualAdded = C; } 278894cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor 27891eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 27901eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == BlockDeclRefExprClass; 27914eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff } 27924eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff static bool classof(const BlockDeclRefExpr *) { return true; } 27931eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 27944eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff // Iterators 27954eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff virtual child_iterator child_begin(); 27964eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff virtual child_iterator child_end(); 27974eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff}; 27984eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff 27995f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} // end namespace clang 28005f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 28015f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer#endif 2802