Expr.h revision 833ca991c1bfc967f0995974ca86f66ba1f666b5
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; 37833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall class TemplateArgumentLoc; 3888a3514f36de96b19cdf50141c640df1a5f13f6cDouglas Gregor 395f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// Expr - This represents one expression. Note that Expr's are subclasses of 405f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// Stmt. This allows an expression to be transparently used any place a Stmt 415f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// is required. 425f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 435f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass Expr : public Stmt { 445f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer QualType TR; 45898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor 469ea62768fca25d829d80199cf4f8cf0f4dd39251Douglas Gregorprotected: 471eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /// TypeDependent - Whether this expression is type-dependent 48898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// (C++ [temp.dep.expr]). 49898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor bool TypeDependent : 1; 50898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor 511eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /// ValueDependent - Whether this expression is value-dependent 52898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// (C++ [temp.dep.constexpr]). 53898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor bool ValueDependent : 1; 54898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor 55898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // FIXME: Eventually, this constructor should go away and we should 56898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // require every subclass to provide type/value-dependence 57898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // information. 581eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump Expr(StmtClass SC, QualType T) 59b3eef68111ffc220e449be96da1747998c057790Douglas Gregor : Stmt(SC), TypeDependent(false), ValueDependent(false) { 601eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump setType(T); 6183233a4b7c2bc7b531ffa3b33fdd1cd8138373b6Douglas Gregor } 62898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor 63898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor Expr(StmtClass SC, QualType T, bool TD, bool VD) 64b3eef68111ffc220e449be96da1747998c057790Douglas Gregor : Stmt(SC), TypeDependent(TD), ValueDependent(VD) { 65898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor setType(T); 66898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor } 67898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor 680b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor /// \brief Construct an empty expression. 690b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor explicit Expr(StmtClass SC, EmptyShell) : Stmt(SC) { } 700b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor 711eb4433ac451dc16f4133a88af2d002ac26c58efMike Stumppublic: 7243d9d9243329b1b75d1a6efdad9f16d6fb386b8eDouglas Gregor /// \brief Increases the reference count for this expression. 7343d9d9243329b1b75d1a6efdad9f16d6fb386b8eDouglas Gregor /// 7443d9d9243329b1b75d1a6efdad9f16d6fb386b8eDouglas Gregor /// Invoke the Retain() operation when this expression 7543d9d9243329b1b75d1a6efdad9f16d6fb386b8eDouglas Gregor /// is being shared by another owner. 7643d9d9243329b1b75d1a6efdad9f16d6fb386b8eDouglas Gregor Expr *Retain() { 7743d9d9243329b1b75d1a6efdad9f16d6fb386b8eDouglas Gregor Stmt::Retain(); 7843d9d9243329b1b75d1a6efdad9f16d6fb386b8eDouglas Gregor return this; 7943d9d9243329b1b75d1a6efdad9f16d6fb386b8eDouglas Gregor } 801eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 81f7c2aa0b049272d8f318988c1965760dcb852578Douglas Gregor QualType getType() const { return TR; } 821eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump void setType(QualType t) { 839d293dfc0ad7c44ae0b5eb9517f1ed8c8d8b7ff7Douglas Gregor // In C++, the type of an expression is always adjusted so that it 849d293dfc0ad7c44ae0b5eb9517f1ed8c8d8b7ff7Douglas Gregor // will not have reference type an expression will never have 859d293dfc0ad7c44ae0b5eb9517f1ed8c8d8b7ff7Douglas Gregor // reference type (C++ [expr]p6). Use 869d293dfc0ad7c44ae0b5eb9517f1ed8c8d8b7ff7Douglas Gregor // QualType::getNonReferenceType() to retrieve the non-reference 879d293dfc0ad7c44ae0b5eb9517f1ed8c8d8b7ff7Douglas Gregor // type. Additionally, inspect Expr::isLvalue to determine whether 889d293dfc0ad7c44ae0b5eb9517f1ed8c8d8b7ff7Douglas Gregor // an expression that is adjusted in this manner should be 899d293dfc0ad7c44ae0b5eb9517f1ed8c8d8b7ff7Douglas Gregor // considered an lvalue. 901eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump assert((TR.isNull() || !TR->isReferenceType()) && 918320aaaa01d931aa234fc3bce05b399ef41898d5Daniel Dunbar "Expressions can't have reference type"); 92f7c2aa0b049272d8f318988c1965760dcb852578Douglas Gregor 931eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump TR = t; 949d293dfc0ad7c44ae0b5eb9517f1ed8c8d8b7ff7Douglas Gregor } 9577ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek 96898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// isValueDependent - Determines whether this expression is 97898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// value-dependent (C++ [temp.dep.constexpr]). For example, the 98898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// array bound of "Chars" in the following example is 991eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /// value-dependent. 100898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// @code 101898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// template<int Size, char (&Chars)[Size]> struct meta_string; 102898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// @endcode 103898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor bool isValueDependent() const { return ValueDependent; } 104898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor 1050b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor /// \brief Set whether this expression is value-dependent or not. 1060b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor void setValueDependent(bool VD) { ValueDependent = VD; } 1070b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor 108898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// isTypeDependent - Determines whether this expression is 109898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// type-dependent (C++ [temp.dep.expr]), which means that its type 110898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// could change from one template instantiation to the next. For 111898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// example, the expressions "x" and "x + y" are type-dependent in 112898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// the following code, but "y" is not type-dependent: 113898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// @code 1141eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /// template<typename T> 115898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// void add(T x, int y) { 116898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// x + y; 117898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// } 118898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// @endcode 119898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor bool isTypeDependent() const { return TypeDependent; } 120898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor 1210b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor /// \brief Set whether this expression is type-dependent or not. 1220b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor void setTypeDependent(bool TD) { TypeDependent = TD; } 1230b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor 1245f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// SourceLocation tokens are not useful in isolation - they are low level 1255f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// value objects created/interpreted by SourceManager. We assume AST 1265f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// clients will have a pointer to the respective SourceManager. 1275f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer virtual SourceRange getSourceRange() const = 0; 1285f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1295f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// getExprLoc - Return the preferred location for the arrow when diagnosing 1305f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// a problem with a generic expression. 1315f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer virtual SourceLocation getExprLoc() const { return getLocStart(); } 1321eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 133026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner /// isUnusedResultAWarning - Return true if this immediate expression should 134026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner /// be warned about if the result is unused. If so, fill in Loc and Ranges 135026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner /// with location to warn on and the source range[s] to report with the 136026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner /// warning. 137026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner bool isUnusedResultAWarning(SourceLocation &Loc, SourceRange &R1, 13840b598eea1310ec9ed554d56ce3e25b34c585458Argyrios Kyrtzidis SourceRange &R2) const; 1391eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1405f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// isLvalue - C99 6.3.2.1: an lvalue is an expression with an object type or 1415f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// incomplete type other than void. Nonarray expressions that can be lvalues: 1425f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// - name, where name must be a variable 1435f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// - e[i] 1445f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// - (e), where e must be an lvalue 1455f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// - e.name, where e must be an lvalue 1465f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// - e->name 1475f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// - *e, the type of e cannot be a function type 1485f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// - string-constant 14908ad47cbd1f81fcb31dbc731c13b885a07e12704Bill Wendling /// - reference type [C++ [expr]] 15076458501a8963fa11b91c9337a487de6871169b4Sebastian Redl /// - b ? x : y, where x and y are lvalues of suitable types [C++] 1515f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// 1525f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer enum isLvalueResult { 1535f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer LV_Valid, 1545f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer LV_NotObjectType, 1555f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer LV_IncompleteVoidType, 156fec0b49c3fa621fbf63e420f3d54a5bb3a0265d2Steve Naroff LV_DuplicateVectorComponents, 15786f194083504938df72135b5b66bf0c5cafd9498Douglas Gregor LV_InvalidExpression, 15886f194083504938df72135b5b66bf0c5cafd9498Douglas Gregor LV_MemberFunction 1595f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer }; 16028be73f74c9e241a23ea24fe5756623de6bf1084Chris Lattner isLvalueResult isLvalue(ASTContext &Ctx) const; 16153202857c60214d80950a975e6e52aebf30bd16aEli Friedman 16253202857c60214d80950a975e6e52aebf30bd16aEli Friedman // Same as above, but excluding checks for non-object and void types in C 16353202857c60214d80950a975e6e52aebf30bd16aEli Friedman isLvalueResult isLvalueInternal(ASTContext &Ctx) const; 1641eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1655f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// isModifiableLvalue - C99 6.3.2.1: an lvalue that does not have array type, 1665f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// does not have an incomplete type, does not have a const-qualified type, 1671eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /// and if it is a structure or union, does not have any member (including, 1685f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// recursively, any member or element of all contained aggregates or unions) 1695f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// with a const-qualified type. 17044e35f7b2b5da1eb338639e46bf0b5522e75c5f3Daniel Dunbar /// 17144e35f7b2b5da1eb338639e46bf0b5522e75c5f3Daniel Dunbar /// \param Loc [in] [out] - A source location which *may* be filled 17244e35f7b2b5da1eb338639e46bf0b5522e75c5f3Daniel Dunbar /// in with the location of the expression making this a 17344e35f7b2b5da1eb338639e46bf0b5522e75c5f3Daniel Dunbar /// non-modifiable lvalue, if specified. 1745f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer enum isModifiableLvalueResult { 1755f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer MLV_Valid, 1765f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer MLV_NotObjectType, 1775f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer MLV_IncompleteVoidType, 178fec0b49c3fa621fbf63e420f3d54a5bb3a0265d2Steve Naroff MLV_DuplicateVectorComponents, 1795f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer MLV_InvalidExpression, 180ca354faa7e9b99af17070c82b9662a5fca76422cChris Lattner MLV_LValueCast, // Specialized form of MLV_InvalidExpression. 1815f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer MLV_IncompleteType, 1825f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer MLV_ConstQualified, 1834f6a7d7ead09b439216c32f2de806a998aeb222aSteve Naroff MLV_ArrayType, 1845daf570d0ce027e18ed5f9d66e6b2a14a40b720dFariborz Jahanian MLV_NotBlockQualified, 185ba8d2d684e74a20bef03828c21c991d222c7e9e5Fariborz Jahanian MLV_ReadonlyProperty, 18686f194083504938df72135b5b66bf0c5cafd9498Douglas Gregor MLV_NoSetterProperty, 18786f194083504938df72135b5b66bf0c5cafd9498Douglas Gregor MLV_MemberFunction 1885f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer }; 18944e35f7b2b5da1eb338639e46bf0b5522e75c5f3Daniel Dunbar isModifiableLvalueResult isModifiableLvalue(ASTContext &Ctx, 19044e35f7b2b5da1eb338639e46bf0b5522e75c5f3Daniel Dunbar SourceLocation *Loc = 0) const; 1911eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 19233bbbc5ec8269bc2cde5b84f970fa49319a30267Douglas Gregor /// \brief If this expression refers to a bit-field, retrieve the 19333bbbc5ec8269bc2cde5b84f970fa49319a30267Douglas Gregor /// declaration of that bit-field. 19433bbbc5ec8269bc2cde5b84f970fa49319a30267Douglas Gregor FieldDecl *getBitField(); 1955f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 19638d068e8f13a119b89a3b8b0f79f35cab1ffd09aAnders Carlsson const FieldDecl *getBitField() const { 19738d068e8f13a119b89a3b8b0f79f35cab1ffd09aAnders Carlsson return const_cast<Expr*>(this)->getBitField(); 19838d068e8f13a119b89a3b8b0f79f35cab1ffd09aAnders Carlsson } 1991eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2005f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// isIntegerConstantExpr - Return true if this expression is a valid integer 2015f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// constant expression, and, if so, return its value in Result. If not a 2025f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// valid i-c-e, return false and fill in Loc (if specified) with the location 2035f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// of the invalid expression. 204590b6646ef747d2f7b42e5f40487ff07642d7b6fChris Lattner bool isIntegerConstantExpr(llvm::APSInt &Result, ASTContext &Ctx, 205590b6646ef747d2f7b42e5f40487ff07642d7b6fChris Lattner SourceLocation *Loc = 0, 2065f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool isEvaluated = true) const; 207590b6646ef747d2f7b42e5f40487ff07642d7b6fChris Lattner bool isIntegerConstantExpr(ASTContext &Ctx, SourceLocation *Loc = 0) const { 2088070a8497c0fb3e6f70a557f788405d8945b1208Daniel Dunbar llvm::APSInt X; 209590b6646ef747d2f7b42e5f40487ff07642d7b6fChris Lattner return isIntegerConstantExpr(X, Ctx, Loc); 2105f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 211c9e8f606787b0bc0c3b08e566b87cc1751694168Eli Friedman /// isConstantInitializer - Returns true if this expression is a constant 212c9e8f606787b0bc0c3b08e566b87cc1751694168Eli Friedman /// initializer, which can be emitted at compile-time. 213c9e8f606787b0bc0c3b08e566b87cc1751694168Eli Friedman bool isConstantInitializer(ASTContext &Ctx) const; 2141eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 21594deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson /// EvalResult is a struct with detailed info about an evaluated expression. 21694deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson struct EvalResult { 2172d6744ff04c1690a1485178d550d2fab84a0270bDaniel Dunbar /// Val - This is the value the expression can be folded to. 21894deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson APValue Val; 2191eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 22094deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson /// HasSideEffects - Whether the evaluated expression has side effects. 22194deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson /// For example, (f() && 0) can be folded, but it still has side effects. 22294deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson bool HasSideEffects; 2231eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 22494deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson /// Diag - If the expression is unfoldable, then Diag contains a note 22594deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson /// diagnostic indicating why it's not foldable. DiagLoc indicates a caret 22694deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson /// position for the error, and DiagExpr is the expression that caused 22794deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson /// the error. 22894deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson /// If the expression is foldable, but not an integer constant expression, 22994deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson /// Diag contains a note diagnostic that describes why it isn't an integer 23094deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson /// constant expression. If the expression *is* an integer constant 23194deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson /// expression, then Diag will be zero. 23294deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson unsigned Diag; 23394deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson const Expr *DiagExpr; 23494deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson SourceLocation DiagLoc; 2351eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 23694deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson EvalResult() : HasSideEffects(false), Diag(0), DiagExpr(0) {} 23794deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson }; 23894deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson 2396ee7aa154e8bbb21a21254293410b944f78b0bfeChris Lattner /// Evaluate - Return true if this is a constant which we can fold using 240019f4e858e78587f2241ff1a76c747d7bcd7578cChris Lattner /// any crazy technique (that has nothing to do with language standards) that 241019f4e858e78587f2241ff1a76c747d7bcd7578cChris Lattner /// we want to. If this function returns true, it returns the folded constant 242019f4e858e78587f2241ff1a76c747d7bcd7578cChris Lattner /// in Result. 2435b45d4ef1ea3f04ec863daf8aa29be6c6e021750Anders Carlsson bool Evaluate(EvalResult &Result, ASTContext &Ctx) const; 2445b45d4ef1ea3f04ec863daf8aa29be6c6e021750Anders Carlsson 245660e6f79a138a30a437c02142f23e7ef4eb21b2eMike Stump /// EvaluateAsAny - The same as Evaluate, except that it also succeeds on 246660e6f79a138a30a437c02142f23e7ef4eb21b2eMike Stump /// stack based objects. 247660e6f79a138a30a437c02142f23e7ef4eb21b2eMike Stump bool EvaluateAsAny(EvalResult &Result, ASTContext &Ctx) const; 248660e6f79a138a30a437c02142f23e7ef4eb21b2eMike Stump 2496ee7aa154e8bbb21a21254293410b944f78b0bfeChris Lattner /// isEvaluatable - Call Evaluate to see if this expression can be constant 25045b6b9d080ac56917337d73d8f1cd6374b27b05dChris Lattner /// folded, but discard the result. 25145b6b9d080ac56917337d73d8f1cd6374b27b05dChris Lattner bool isEvaluatable(ASTContext &Ctx) const; 252c44eec6dd29ee9415cbd38a35deff4c8b67abb6aAnders Carlsson 25351fe996231b1d7199f76e4005ff4c943d5deeecdAnders Carlsson /// EvaluateAsInt - Call Evaluate and return the folded integer. This 25451fe996231b1d7199f76e4005ff4c943d5deeecdAnders Carlsson /// must be called on an expression that constant folds to an integer. 25551fe996231b1d7199f76e4005ff4c943d5deeecdAnders Carlsson llvm::APSInt EvaluateAsInt(ASTContext &Ctx) const; 25651fe996231b1d7199f76e4005ff4c943d5deeecdAnders Carlsson 257b2f295c8050fb8c141bf2cf38eed0a56e99d0092Eli Friedman /// EvaluateAsLValue - Evaluate an expression to see if it's a lvalue 258b2f295c8050fb8c141bf2cf38eed0a56e99d0092Eli Friedman /// with link time known address. 2591b78276a75a5a0f496a82429c1ff9604d622a76dAnders Carlsson bool EvaluateAsLValue(EvalResult &Result, ASTContext &Ctx) const; 2601b78276a75a5a0f496a82429c1ff9604d622a76dAnders Carlsson 261b2f295c8050fb8c141bf2cf38eed0a56e99d0092Eli Friedman /// EvaluateAsAnyLValue - The same as EvaluateAsLValue, except that it 262b2f295c8050fb8c141bf2cf38eed0a56e99d0092Eli Friedman /// also succeeds on stack based, immutable address lvalues. 263b2f295c8050fb8c141bf2cf38eed0a56e99d0092Eli Friedman bool EvaluateAsAnyLValue(EvalResult &Result, ASTContext &Ctx) const; 264b2f295c8050fb8c141bf2cf38eed0a56e99d0092Eli Friedman 265ce94049b69f75b44c18584fe79cd238978b6b0d5Douglas Gregor /// \brief Enumeration used to describe how \c isNullPointerConstant() 266ce94049b69f75b44c18584fe79cd238978b6b0d5Douglas Gregor /// should cope with value-dependent expressions. 267ce94049b69f75b44c18584fe79cd238978b6b0d5Douglas Gregor enum NullPointerConstantValueDependence { 268ce94049b69f75b44c18584fe79cd238978b6b0d5Douglas Gregor /// \brief Specifies that the expression should never be value-dependent. 269ce94049b69f75b44c18584fe79cd238978b6b0d5Douglas Gregor NPC_NeverValueDependent = 0, 270ce94049b69f75b44c18584fe79cd238978b6b0d5Douglas Gregor 271ce94049b69f75b44c18584fe79cd238978b6b0d5Douglas Gregor /// \brief Specifies that a value-dependent expression of integral or 272ce94049b69f75b44c18584fe79cd238978b6b0d5Douglas Gregor /// dependent type should be considered a null pointer constant. 273ce94049b69f75b44c18584fe79cd238978b6b0d5Douglas Gregor NPC_ValueDependentIsNull, 274ce94049b69f75b44c18584fe79cd238978b6b0d5Douglas Gregor 275ce94049b69f75b44c18584fe79cd238978b6b0d5Douglas Gregor /// \brief Specifies that a value-dependent expression should be considered 276ce94049b69f75b44c18584fe79cd238978b6b0d5Douglas Gregor /// to never be a null pointer constant. 277ce94049b69f75b44c18584fe79cd238978b6b0d5Douglas Gregor NPC_ValueDependentIsNotNull 278ce94049b69f75b44c18584fe79cd238978b6b0d5Douglas Gregor }; 279ce94049b69f75b44c18584fe79cd238978b6b0d5Douglas Gregor 280efa9b3877ef298bcb792600ac33521827e1f7fafAnders Carlsson /// isNullPointerConstant - C99 6.3.2.3p3 - Return true if this is either an 281efa9b3877ef298bcb792600ac33521827e1f7fafAnders Carlsson /// integer constant expression with the value zero, or if this is one that is 282efa9b3877ef298bcb792600ac33521827e1f7fafAnders Carlsson /// cast to void*. 283ce94049b69f75b44c18584fe79cd238978b6b0d5Douglas Gregor bool isNullPointerConstant(ASTContext &Ctx, 284ce94049b69f75b44c18584fe79cd238978b6b0d5Douglas Gregor NullPointerConstantValueDependence NPC) const; 285efa9b3877ef298bcb792600ac33521827e1f7fafAnders Carlsson 28644baa8abba2a1552b6b50bf750a8750ab9da9f76Fariborz Jahanian /// isOBJCGCCandidate - Return true if this expression may be used in a read/ 2871eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /// write barrier. 288102e390bcb5a1fb1a8fdbc8505e6dfd905374bbdFariborz Jahanian bool isOBJCGCCandidate(ASTContext &Ctx) const; 2891eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2904e99a5fc3b203397a91136c6e695e405fb8fc606Ted Kremenek /// IgnoreParens - Ignore parentheses. If this Expr is a ParenExpr, return 2911eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /// its subexpression. If that subexpression is also a ParenExpr, 2924e99a5fc3b203397a91136c6e695e405fb8fc606Ted Kremenek /// then this method recursively returns its subexpression, and so forth. 2934e99a5fc3b203397a91136c6e695e405fb8fc606Ted Kremenek /// Otherwise, the method returns the current Expr. 2944e99a5fc3b203397a91136c6e695e405fb8fc606Ted Kremenek Expr* IgnoreParens(); 29556f349400c5932a196509c0480ff6f99a9a0b48fChris Lattner 29656f349400c5932a196509c0480ff6f99a9a0b48fChris Lattner /// IgnoreParenCasts - Ignore parentheses and casts. Strip off any ParenExpr 29727c8dc06f65d7abcf6a7e7f64a7960c9a150ca01Douglas Gregor /// or CastExprs, returning their operand. 29856f349400c5932a196509c0480ff6f99a9a0b48fChris Lattner Expr *IgnoreParenCasts(); 2991eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 300ecdd84147c0765caa999ddc22dde25b42712bb4dChris Lattner /// IgnoreParenNoopCasts - Ignore parentheses and casts that do not change the 301ecdd84147c0765caa999ddc22dde25b42712bb4dChris Lattner /// value (including ptr->int casts of the same size). Strip off any 302ecdd84147c0765caa999ddc22dde25b42712bb4dChris Lattner /// ParenExpr or CastExprs, returning their operand. 303ecdd84147c0765caa999ddc22dde25b42712bb4dChris Lattner Expr *IgnoreParenNoopCasts(ASTContext &Ctx); 3041eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3054e99a5fc3b203397a91136c6e695e405fb8fc606Ted Kremenek const Expr* IgnoreParens() const { 3064e99a5fc3b203397a91136c6e695e405fb8fc606Ted Kremenek return const_cast<Expr*>(this)->IgnoreParens(); 3074e99a5fc3b203397a91136c6e695e405fb8fc606Ted Kremenek } 30856f349400c5932a196509c0480ff6f99a9a0b48fChris Lattner const Expr *IgnoreParenCasts() const { 30956f349400c5932a196509c0480ff6f99a9a0b48fChris Lattner return const_cast<Expr*>(this)->IgnoreParenCasts(); 31056f349400c5932a196509c0480ff6f99a9a0b48fChris Lattner } 311ecdd84147c0765caa999ddc22dde25b42712bb4dChris Lattner const Expr *IgnoreParenNoopCasts(ASTContext &Ctx) const { 312ecdd84147c0765caa999ddc22dde25b42712bb4dChris Lattner return const_cast<Expr*>(this)->IgnoreParenNoopCasts(Ctx); 313ecdd84147c0765caa999ddc22dde25b42712bb4dChris Lattner } 3141eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 315898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor static bool hasAnyTypeDependentArguments(Expr** Exprs, unsigned NumExprs); 316898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor static bool hasAnyValueDependentArguments(Expr** Exprs, unsigned NumExprs); 317898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor 3181eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 3195f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return T->getStmtClass() >= firstExprConstant && 3201eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump T->getStmtClass() <= lastExprConstant; 3215f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 3225f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const Expr *) { return true; } 3235f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 3245f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 3251eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3265549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek//===----------------------------------------------------------------------===// 3275f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// Primary Expressions. 3285f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer//===----------------------------------------------------------------------===// 3295f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 330a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor/// \brief Represents the qualifier that may precede a C++ name, e.g., the 331a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor/// "std::" in "std::sort". 332a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregorstruct NameQualifier { 333a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// \brief The nested name specifier. 334a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor NestedNameSpecifier *NNS; 335a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor 336a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// \brief The source range covered by the nested name specifier. 337a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor SourceRange Range; 338a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor}; 339a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor 340a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor/// \brief Represents an explicit template argument list in C++, e.g., 341a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor/// the "<int>" in "sort<int>". 342a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregorstruct ExplicitTemplateArgumentList { 343a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// \brief The source location of the left angle bracket ('<'); 344a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor SourceLocation LAngleLoc; 345a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor 346a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// \brief The source location of the right angle bracket ('>'); 347a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor SourceLocation RAngleLoc; 348a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor 349a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// \brief The number of template arguments in TemplateArgs. 350a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// The actual template arguments (if any) are stored after the 351a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// ExplicitTemplateArgumentList structure. 352a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor unsigned NumTemplateArgs; 353a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor 354a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// \brief Retrieve the template arguments 355833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall TemplateArgumentLoc *getTemplateArgs() { 356833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall return reinterpret_cast<TemplateArgumentLoc *> (this + 1); 357a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor } 358a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor 359a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// \brief Retrieve the template arguments 360833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall const TemplateArgumentLoc *getTemplateArgs() const { 361833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall return reinterpret_cast<const TemplateArgumentLoc *> (this + 1); 362a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor } 363a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor}; 364a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor 3655f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// DeclRefExpr - [C99 6.5.1p2] - A reference to a declared variable, function, 3665f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// enum, etc. 3675f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass DeclRefExpr : public Expr { 368a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor enum { 369a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor // Flag on DecoratedD that specifies when this declaration reference 370a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor // expression has a C++ nested-name-specifier. 371a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor HasQualifierFlag = 0x01, 372a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor // Flag on DecoratedD that specifies when this declaration reference 373a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor // expression has an explicit C++ template argument list. 374a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor HasExplicitTemplateArgumentListFlag = 0x02 375a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor }; 376a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor 377a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor // DecoratedD - The declaration that we are referencing, plus two bits to 378a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor // indicate whether (1) the declaration's name was explicitly qualified and 379a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor // (2) the declaration's name was followed by an explicit template 380a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor // argument list. 381a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor llvm::PointerIntPair<NamedDecl *, 2> DecoratedD; 382a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor 383a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor // Loc - The location of the declaration name itself. 3845f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation Loc; 3859e922b1663ecb95dc7eee03002fd66ed18fb3192Argyrios Kyrtzidis 386a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// \brief Retrieve the qualifier that preceded the declaration name, if any. 387a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor NameQualifier *getNameQualifier() { 3882cf719c3c3d805f630dfc6b1255e52647820888eSebastian Redl if ((DecoratedD.getInt() & HasQualifierFlag) == 0) 389a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor return 0; 390a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor 391a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor return reinterpret_cast<NameQualifier *> (this + 1); 392a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor } 393a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor 394a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// \brief Retrieve the qualifier that preceded the member name, if any. 395a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor const NameQualifier *getNameQualifier() const { 396a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor return const_cast<DeclRefExpr *>(this)->getNameQualifier(); 397a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor } 398a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor 399a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// \brief Retrieve the explicit template argument list that followed the 400a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// member template name, if any. 401a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor ExplicitTemplateArgumentList *getExplicitTemplateArgumentList() { 4022cf719c3c3d805f630dfc6b1255e52647820888eSebastian Redl if ((DecoratedD.getInt() & HasExplicitTemplateArgumentListFlag) == 0) 403a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor return 0; 404a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor 4052cf719c3c3d805f630dfc6b1255e52647820888eSebastian Redl if ((DecoratedD.getInt() & HasQualifierFlag) == 0) 406a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor return reinterpret_cast<ExplicitTemplateArgumentList *>(this + 1); 407a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor 408a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor return reinterpret_cast<ExplicitTemplateArgumentList *>( 409a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor getNameQualifier() + 1); 410a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor } 411a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor 412a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// \brief Retrieve the explicit template argument list that followed the 413a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// member template name, if any. 414a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor const ExplicitTemplateArgumentList *getExplicitTemplateArgumentList() const { 415a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor return const_cast<DeclRefExpr *>(this)->getExplicitTemplateArgumentList(); 416a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor } 417a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor 418a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor DeclRefExpr(NestedNameSpecifier *Qualifier, SourceRange QualifierRange, 419a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor NamedDecl *D, SourceLocation NameLoc, 420a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor bool HasExplicitTemplateArgumentList, 421a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor SourceLocation LAngleLoc, 422833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall const TemplateArgumentLoc *ExplicitTemplateArgs, 423a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor unsigned NumExplicitTemplateArgs, 424a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor SourceLocation RAngleLoc, 425a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor QualType T, bool TD, bool VD); 426a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor 4279e922b1663ecb95dc7eee03002fd66ed18fb3192Argyrios Kyrtzidisprotected: 4281a49af9681c350fef58e677f85ccb9a77e8e9d0aDouglas Gregor // FIXME: Eventually, this constructor will go away and all subclasses 4291a49af9681c350fef58e677f85ccb9a77e8e9d0aDouglas Gregor // will have to provide the type- and value-dependent flags. 4308e9bebdea69c590dedfbf27374114cb76fe12fbdDouglas Gregor DeclRefExpr(StmtClass SC, NamedDecl *d, QualType t, SourceLocation l) : 431a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor Expr(SC, t), DecoratedD(d, 0), Loc(l) {} 4329e922b1663ecb95dc7eee03002fd66ed18fb3192Argyrios Kyrtzidis 4331a49af9681c350fef58e677f85ccb9a77e8e9d0aDouglas Gregor DeclRefExpr(StmtClass SC, NamedDecl *d, QualType t, SourceLocation l, bool TD, 4341a49af9681c350fef58e677f85ccb9a77e8e9d0aDouglas Gregor bool VD) : 435a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor Expr(SC, t, TD, VD), DecoratedD(d, 0), Loc(l) {} 4361a49af9681c350fef58e677f85ccb9a77e8e9d0aDouglas Gregor 4375f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 438898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // FIXME: Eventually, this constructor will go away and all clients 439898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // will have to provide the type- and value-dependent flags. 4401eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump DeclRefExpr(NamedDecl *d, QualType t, SourceLocation l) : 441a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor Expr(DeclRefExprClass, t), DecoratedD(d, 0), Loc(l) {} 442898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor 4431eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump DeclRefExpr(NamedDecl *d, QualType t, SourceLocation l, bool TD, bool VD) : 444a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor Expr(DeclRefExprClass, t, TD, VD), DecoratedD(d, 0), Loc(l) {} 4451eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4460b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor /// \brief Construct an empty declaration reference expression. 4471eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump explicit DeclRefExpr(EmptyShell Empty) 4480b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor : Expr(DeclRefExprClass, Empty) { } 4490b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor 450a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor static DeclRefExpr *Create(ASTContext &Context, 451a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor NestedNameSpecifier *Qualifier, 452a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor SourceRange QualifierRange, 453a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor NamedDecl *D, 454a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor SourceLocation NameLoc, 455a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor QualType T, bool TD, bool VD); 456a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor 457a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor static DeclRefExpr *Create(ASTContext &Context, 458a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor NestedNameSpecifier *Qualifier, 459a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor SourceRange QualifierRange, 460a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor NamedDecl *D, 461a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor SourceLocation NameLoc, 462a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor bool HasExplicitTemplateArgumentList, 463a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor SourceLocation LAngleLoc, 464833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall const TemplateArgumentLoc *ExplicitTemplateArgs, 465a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor unsigned NumExplicitTemplateArgs, 466a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor SourceLocation RAngleLoc, 467a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor QualType T, bool TD, bool VD); 468a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor 469a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor NamedDecl *getDecl() { return DecoratedD.getPointer(); } 470a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor const NamedDecl *getDecl() const { return DecoratedD.getPointer(); } 471a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor void setDecl(NamedDecl *NewD) { DecoratedD.setPointer(NewD); } 472904eed3f6148758d39a2d3c88f3133274460d645Douglas Gregor 4739e922b1663ecb95dc7eee03002fd66ed18fb3192Argyrios Kyrtzidis SourceLocation getLocation() const { return Loc; } 4740b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor void setLocation(SourceLocation L) { Loc = L; } 475a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor virtual SourceRange getSourceRange() const; 4761eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 477a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// \brief Determine whether this declaration reference was preceded by a 478a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// C++ nested-name-specifier, e.g., \c N::foo. 479a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor bool hasQualifier() const { return DecoratedD.getInt() & HasQualifierFlag; } 480a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor 481a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// \brief If the name was qualified, retrieves the source range of 482a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// the nested-name-specifier that precedes the name. Otherwise, 483a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// returns an empty source range. 484a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor SourceRange getQualifierRange() const { 485a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor if (!hasQualifier()) 486a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor return SourceRange(); 487a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor 488a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor return getNameQualifier()->Range; 489a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor } 490a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor 491a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// \brief If the name was qualified, retrieves the nested-name-specifier 492a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// that precedes the name. Otherwise, returns NULL. 493a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor NestedNameSpecifier *getQualifier() const { 494a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor if (!hasQualifier()) 495a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor return 0; 496a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor 497a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor return getNameQualifier()->NNS; 498a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor } 499a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor 500a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// \brief Determines whether this member expression actually had a C++ 501a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// template argument list explicitly specified, e.g., x.f<int>. 502a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor bool hasExplicitTemplateArgumentList() const { 503a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor return DecoratedD.getInt() & HasExplicitTemplateArgumentListFlag; 504a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor } 505a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor 506a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// \brief Retrieve the location of the left angle bracket following the 507a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// member name ('<'), if any. 508a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor SourceLocation getLAngleLoc() const { 509a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor if (!hasExplicitTemplateArgumentList()) 510a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor return SourceLocation(); 511a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor 512a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor return getExplicitTemplateArgumentList()->LAngleLoc; 513a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor } 514a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor 515a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// \brief Retrieve the template arguments provided as part of this 516a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// template-id. 517833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall const TemplateArgumentLoc *getTemplateArgs() const { 518a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor if (!hasExplicitTemplateArgumentList()) 519a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor return 0; 520a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor 521a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor return getExplicitTemplateArgumentList()->getTemplateArgs(); 522a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor } 523a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor 524a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// \brief Retrieve the number of template arguments provided as part of this 525a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// template-id. 526a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor unsigned getNumTemplateArgs() const { 527a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor if (!hasExplicitTemplateArgumentList()) 528a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor return 0; 529a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor 530a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor return getExplicitTemplateArgumentList()->NumTemplateArgs; 531a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor } 532a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor 533a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// \brief Retrieve the location of the right angle bracket following the 534a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// template arguments ('>'). 535a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor SourceLocation getRAngleLoc() const { 536a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor if (!hasExplicitTemplateArgumentList()) 537a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor return SourceLocation(); 538a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor 539a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor return getExplicitTemplateArgumentList()->RAngleLoc; 540a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor } 541a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor 5421eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 5439e922b1663ecb95dc7eee03002fd66ed18fb3192Argyrios Kyrtzidis return T->getStmtClass() == DeclRefExprClass || 544a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor T->getStmtClass() == CXXConditionDeclExprClass; 5455f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 5465f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const DeclRefExpr *) { return true; } 5471eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 54877ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek // Iterators 54977ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_begin(); 55077ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_end(); 5515f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 5525f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 553d9f6910f4ef37c0e8eeee2a01287d9572c3176efChris Lattner/// PredefinedExpr - [C99 6.4.2.2] - A predefined identifier such as __func__. 554d9f6910f4ef37c0e8eeee2a01287d9572c3176efChris Lattnerclass PredefinedExpr : public Expr { 555227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlssonpublic: 556227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson enum IdentType { 557227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson Func, 558227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson Function, 559cd9b46e5442a3ef17f83f75177d8545cb5b3e2b9Douglas Gregor PrettyFunction 560227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson }; 5611eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 562227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlssonprivate: 563227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson SourceLocation Loc; 564227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson IdentType Type; 565227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlssonpublic: 5661eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump PredefinedExpr(SourceLocation l, QualType type, IdentType IT) 567773f3973cf5e2b6b8788e895967dcb3c1e6ffe79Anders Carlsson : Expr(PredefinedExprClass, type, type->isDependentType(), 568773f3973cf5e2b6b8788e895967dcb3c1e6ffe79Anders Carlsson type->isDependentType()), Loc(l), Type(IT) {} 5691eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 57017fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor /// \brief Construct an empty predefined expression. 5711eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump explicit PredefinedExpr(EmptyShell Empty) 57217fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor : Expr(PredefinedExprClass, Empty) { } 57317fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor 574227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson IdentType getIdentType() const { return Type; } 57517fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor void setIdentType(IdentType IT) { Type = IT; } 57617fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor 57717fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor SourceLocation getLocation() const { return Loc; } 57817fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor void setLocation(SourceLocation L) { Loc = L; } 57917fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor 5803a082d81006e7a2e01a6e431a22e21c78490ff8fAnders Carlsson static std::string ComputeName(ASTContext &Context, IdentType IT, 5813a082d81006e7a2e01a6e431a22e21c78490ff8fAnders Carlsson const Decl *CurrentDecl); 5823a082d81006e7a2e01a6e431a22e21c78490ff8fAnders Carlsson 583227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson virtual SourceRange getSourceRange() const { return SourceRange(Loc); } 584227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson 5851eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 5861eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == PredefinedExprClass; 587227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson } 588d9f6910f4ef37c0e8eeee2a01287d9572c3176efChris Lattner static bool classof(const PredefinedExpr *) { return true; } 5891eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 59077ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek // Iterators 59177ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_begin(); 59277ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_end(); 593227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson}; 594227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson 5955f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass IntegerLiteral : public Expr { 5965f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::APInt Value; 5975f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation Loc; 5985f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 5991eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // type should be IntTy, LongTy, LongLongTy, UnsignedIntTy, UnsignedLongTy, 6005f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // or UnsignedLongLongTy 6015f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer IntegerLiteral(const llvm::APInt &V, QualType type, SourceLocation l) 6025f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer : Expr(IntegerLiteralClass, type), Value(V), Loc(l) { 6035f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer assert(type->isIntegerType() && "Illegal type in IntegerLiteral"); 6045f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 605a135fb43eb94524a6529768596a4533eed9aa70dAnders Carlsson 6060b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor /// \brief Construct an empty integer literal. 6071eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump explicit IntegerLiteral(EmptyShell Empty) 6080b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor : Expr(IntegerLiteralClass, Empty) { } 6090b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor 6105f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer const llvm::APInt &getValue() const { return Value; } 6115f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer virtual SourceRange getSourceRange() const { return SourceRange(Loc); } 6125f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 613313a81dd820c9b2c0203bdcd974c781a81e4f0cfDouglas Gregor /// \brief Retrieve the location of the literal. 614313a81dd820c9b2c0203bdcd974c781a81e4f0cfDouglas Gregor SourceLocation getLocation() const { return Loc; } 615313a81dd820c9b2c0203bdcd974c781a81e4f0cfDouglas Gregor 6160b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor void setValue(const llvm::APInt &Val) { Value = Val; } 6170b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor void setLocation(SourceLocation Location) { Loc = Location; } 6180b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor 6191eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 6201eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == IntegerLiteralClass; 6215f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 6225f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const IntegerLiteral *) { return true; } 6231eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 62477ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek // Iterators 62577ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_begin(); 62677ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_end(); 6275f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 6285f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 6295f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass CharacterLiteral : public Expr { 6305f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer unsigned Value; 6315f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation Loc; 632c250aae4f645833aed3a6321bc8598f7330dce8dChris Lattner bool IsWide; 6335f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 6345f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // type should be IntTy 635c250aae4f645833aed3a6321bc8598f7330dce8dChris Lattner CharacterLiteral(unsigned value, bool iswide, QualType type, SourceLocation l) 636c250aae4f645833aed3a6321bc8598f7330dce8dChris Lattner : Expr(CharacterLiteralClass, type), Value(value), Loc(l), IsWide(iswide) { 6375f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 6380b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor 6390b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor /// \brief Construct an empty character literal. 6400b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor CharacterLiteral(EmptyShell Empty) : Expr(CharacterLiteralClass, Empty) { } 6410b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor 642018d8e0596dd57401eeddcf11ac84ff0a065fbbeChris Lattner SourceLocation getLocation() const { return Loc; } 643c250aae4f645833aed3a6321bc8598f7330dce8dChris Lattner bool isWide() const { return IsWide; } 6441eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 6455f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer virtual SourceRange getSourceRange() const { return SourceRange(Loc); } 6461eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 6475f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer unsigned getValue() const { return Value; } 6485f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 6490b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor void setLocation(SourceLocation Location) { Loc = Location; } 6500b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor void setWide(bool W) { IsWide = W; } 6510b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor void setValue(unsigned Val) { Value = Val; } 6520b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor 6531eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 6541eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == CharacterLiteralClass; 6555f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 6565f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const CharacterLiteral *) { return true; } 65777ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek 65877ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek // Iterators 65977ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_begin(); 66077ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_end(); 6615f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 6625f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 6635f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass FloatingLiteral : public Expr { 664525a05093a4816af961fe2bc6b8a81c17e2e26c2Chris Lattner llvm::APFloat Value; 665720c4ec57b6110873cd533ad434853a27e7c3f4aTed Kremenek bool IsExact : 1; 6665f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation Loc; 6675f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 6681eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump FloatingLiteral(const llvm::APFloat &V, bool isexact, 669720c4ec57b6110873cd533ad434853a27e7c3f4aTed Kremenek QualType Type, SourceLocation L) 6701eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump : Expr(FloatingLiteralClass, Type), Value(V), IsExact(isexact), Loc(L) {} 6715f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 67217fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor /// \brief Construct an empty floating-point literal. 6731eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump explicit FloatingLiteral(EmptyShell Empty) 67417fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor : Expr(FloatingLiteralClass, Empty), Value(0.0) { } 67517fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor 676c9bec4bfea9090a08dd83a7b213f0c8adf8d78ecChris Lattner const llvm::APFloat &getValue() const { return Value; } 67717fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor void setValue(const llvm::APFloat &Val) { Value = Val; } 67817fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor 679720c4ec57b6110873cd533ad434853a27e7c3f4aTed Kremenek bool isExact() const { return IsExact; } 68017fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor void setExact(bool E) { IsExact = E; } 681c9bec4bfea9090a08dd83a7b213f0c8adf8d78ecChris Lattner 682da8249e57f3badecf925571881fe57243935c6c1Chris Lattner /// getValueAsApproximateDouble - This returns the value as an inaccurate 683da8249e57f3badecf925571881fe57243935c6c1Chris Lattner /// double. Note that this may cause loss of precision, but is useful for 684da8249e57f3badecf925571881fe57243935c6c1Chris Lattner /// debugging dumps, etc. 685da8249e57f3badecf925571881fe57243935c6c1Chris Lattner double getValueAsApproximateDouble() const; 6861eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 68717fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor SourceLocation getLocation() const { return Loc; } 68817fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor void setLocation(SourceLocation L) { Loc = L; } 68917fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor 6904863db4266d066617a1e5ad7c0f3f28c7995c61bChris Lattner // FIXME: The logic for computing the value of a predefined expr should go 6914863db4266d066617a1e5ad7c0f3f28c7995c61bChris Lattner // into a method here that takes the inner-most code decl (a block, function 6924863db4266d066617a1e5ad7c0f3f28c7995c61bChris Lattner // or objc method) that the expr lives in. This would allow sema and codegen 6934863db4266d066617a1e5ad7c0f3f28c7995c61bChris Lattner // to be consistent for things like sizeof(__func__) etc. 6941eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 6955f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer virtual SourceRange getSourceRange() const { return SourceRange(Loc); } 6965f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 6971eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 6981eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == FloatingLiteralClass; 6995f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 7005f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const FloatingLiteral *) { return true; } 7011eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 70277ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek // Iterators 70377ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_begin(); 70477ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_end(); 7055f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 7065f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 7075d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner/// ImaginaryLiteral - We support imaginary integer and floating point literals, 7085d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner/// like "1.0i". We represent these as a wrapper around FloatingLiteral and 7095d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner/// IntegerLiteral classes. Instances of this class always have a Complex type 7105d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner/// whose element type matches the subexpression. 7115d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner/// 7125d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattnerclass ImaginaryLiteral : public Expr { 7135549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Stmt *Val; 7145d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattnerpublic: 7155d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner ImaginaryLiteral(Expr *val, QualType Ty) 7165d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner : Expr(ImaginaryLiteralClass, Ty), Val(val) {} 7171eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 718cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor /// \brief Build an empty imaginary literal. 7191eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump explicit ImaginaryLiteral(EmptyShell Empty) 720cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor : Expr(ImaginaryLiteralClass, Empty) { } 721cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor 7225549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek const Expr *getSubExpr() const { return cast<Expr>(Val); } 7235549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getSubExpr() { return cast<Expr>(Val); } 724cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor void setSubExpr(Expr *E) { Val = E; } 725cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor 7265d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner virtual SourceRange getSourceRange() const { return Val->getSourceRange(); } 7271eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 7281eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == ImaginaryLiteralClass; 7295d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner } 7305d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner static bool classof(const ImaginaryLiteral *) { return true; } 7311eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 7325d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner // Iterators 7335d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner virtual child_iterator child_begin(); 7345d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner virtual child_iterator child_end(); 7355d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner}; 7365d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner 737e6a82b2c29ad05534841e5f8fd033fb17b6f61e2Ted Kremenek/// StringLiteral - This represents a string literal expression, e.g. "foo" 738e6a82b2c29ad05534841e5f8fd033fb17b6f61e2Ted Kremenek/// or L"bar" (wide strings). The actual string is returned by getStrData() 739e6a82b2c29ad05534841e5f8fd033fb17b6f61e2Ted Kremenek/// is NOT null-terminated, and the length of the string is determined by 740a7ad98ff0919d6a24ea7c46634ea29bea551c1a0Chris Lattner/// calling getByteLength(). The C type for a string is always a 741c4a09c189981b4561428e4b56fd250718e2717bbChris Lattner/// ConstantArrayType. In C++, the char type is const qualified, in C it is 742c4a09c189981b4561428e4b56fd250718e2717bbChris Lattner/// not. 743690398188ea5b428f06aa13c7d4ce6eb741ad4f9Chris Lattner/// 744690398188ea5b428f06aa13c7d4ce6eb741ad4f9Chris Lattner/// Note that strings in C can be formed by concatenation of multiple string 7458bea7c0ee44c71c817de7dc2be932b73bec90c9fChris Lattner/// literal pptokens in translation phase #6. This keeps track of the locations 746690398188ea5b428f06aa13c7d4ce6eb741ad4f9Chris Lattner/// of each of these pieces. 747c4a09c189981b4561428e4b56fd250718e2717bbChris Lattner/// 748c4a09c189981b4561428e4b56fd250718e2717bbChris Lattner/// Strings in C can also be truncated and extended by assigning into arrays, 749c4a09c189981b4561428e4b56fd250718e2717bbChris Lattner/// e.g. with constructs like: 750c4a09c189981b4561428e4b56fd250718e2717bbChris Lattner/// char X[2] = "foobar"; 751c4a09c189981b4561428e4b56fd250718e2717bbChris Lattner/// In this case, getByteLength() will return 6, but the string literal will 752c4a09c189981b4561428e4b56fd250718e2717bbChris Lattner/// have type "char[2]". 7535f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass StringLiteral : public Expr { 7545f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer const char *StrData; 7555f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer unsigned ByteLength; 7565f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool IsWide; 757726e168dc09fb23f53c7b004f8e919421ee91806Chris Lattner unsigned NumConcatenated; 758726e168dc09fb23f53c7b004f8e919421ee91806Chris Lattner SourceLocation TokLocs[1]; 7592085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner 7602085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner StringLiteral(QualType Ty) : Expr(StringLiteralClass, Ty) {} 7611eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 76242602bb40aefcc2751d4078ba88aacf4d965c9bdDouglas Gregorprotected: 76342602bb40aefcc2751d4078ba88aacf4d965c9bdDouglas Gregor virtual void DoDestroy(ASTContext &C); 76442602bb40aefcc2751d4078ba88aacf4d965c9bdDouglas Gregor 7655f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 7662085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner /// This is the "fully general" constructor that allows representation of 7672085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner /// strings formed from multiple concatenated tokens. 7682085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner static StringLiteral *Create(ASTContext &C, const char *StrData, 7692085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner unsigned ByteLength, bool Wide, QualType Ty, 770a135fb43eb94524a6529768596a4533eed9aa70dAnders Carlsson const SourceLocation *Loc, unsigned NumStrs); 7712085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner 7722085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner /// Simple constructor for string literals made from one token. 7731eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static StringLiteral *Create(ASTContext &C, const char *StrData, 7742085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner unsigned ByteLength, 7752085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner bool Wide, QualType Ty, SourceLocation Loc) { 7762085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner return Create(C, StrData, ByteLength, Wide, Ty, &Loc, 1); 7772085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner } 778a135fb43eb94524a6529768596a4533eed9aa70dAnders Carlsson 779673ecd6a4a9f7c12fb6f76f84f654dbdcdc89e76Douglas Gregor /// \brief Construct an empty string literal. 780673ecd6a4a9f7c12fb6f76f84f654dbdcdc89e76Douglas Gregor static StringLiteral *CreateEmpty(ASTContext &C, unsigned NumStrs); 781673ecd6a4a9f7c12fb6f76f84f654dbdcdc89e76Douglas Gregor 782b648023da23e8b227cdda57a241db4c6f368726bDaniel Dunbar llvm::StringRef getString() const { 783b648023da23e8b227cdda57a241db4c6f368726bDaniel Dunbar return llvm::StringRef(StrData, ByteLength); 784b648023da23e8b227cdda57a241db4c6f368726bDaniel Dunbar } 785b648023da23e8b227cdda57a241db4c6f368726bDaniel Dunbar // FIXME: These are deprecated, replace with StringRef. 7865f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer const char *getStrData() const { return StrData; } 7875f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer unsigned getByteLength() const { return ByteLength; } 788673ecd6a4a9f7c12fb6f76f84f654dbdcdc89e76Douglas Gregor 789673ecd6a4a9f7c12fb6f76f84f654dbdcdc89e76Douglas Gregor /// \brief Sets the string data to the given string data. 790b648023da23e8b227cdda57a241db4c6f368726bDaniel Dunbar void setString(ASTContext &C, llvm::StringRef Str); 791673ecd6a4a9f7c12fb6f76f84f654dbdcdc89e76Douglas Gregor 7925f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool isWide() const { return IsWide; } 793673ecd6a4a9f7c12fb6f76f84f654dbdcdc89e76Douglas Gregor void setWide(bool W) { IsWide = W; } 794673ecd6a4a9f7c12fb6f76f84f654dbdcdc89e76Douglas Gregor 7958d4141f83d9de379547cf05bd75d4c6cf894b189Steve Naroff bool containsNonAsciiOrNull() const { 796b648023da23e8b227cdda57a241db4c6f368726bDaniel Dunbar llvm::StringRef Str = getString(); 797b648023da23e8b227cdda57a241db4c6f368726bDaniel Dunbar for (unsigned i = 0, e = Str.size(); i != e; ++i) 798b648023da23e8b227cdda57a241db4c6f368726bDaniel Dunbar if (!isascii(Str[i]) || !Str[i]) 79933fdb738a6c125f4c788733897021b7c1a062b0cSteve Naroff return true; 80033fdb738a6c125f4c788733897021b7c1a062b0cSteve Naroff return false; 80133fdb738a6c125f4c788733897021b7c1a062b0cSteve Naroff } 802726e168dc09fb23f53c7b004f8e919421ee91806Chris Lattner /// getNumConcatenated - Get the number of string literal tokens that were 803726e168dc09fb23f53c7b004f8e919421ee91806Chris Lattner /// concatenated in translation phase #6 to form this string literal. 804726e168dc09fb23f53c7b004f8e919421ee91806Chris Lattner unsigned getNumConcatenated() const { return NumConcatenated; } 8051eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 806726e168dc09fb23f53c7b004f8e919421ee91806Chris Lattner SourceLocation getStrTokenLoc(unsigned TokNum) const { 807726e168dc09fb23f53c7b004f8e919421ee91806Chris Lattner assert(TokNum < NumConcatenated && "Invalid tok number"); 808726e168dc09fb23f53c7b004f8e919421ee91806Chris Lattner return TokLocs[TokNum]; 809726e168dc09fb23f53c7b004f8e919421ee91806Chris Lattner } 8101eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump void setStrTokenLoc(unsigned TokNum, SourceLocation L) { 811673ecd6a4a9f7c12fb6f76f84f654dbdcdc89e76Douglas Gregor assert(TokNum < NumConcatenated && "Invalid tok number"); 812673ecd6a4a9f7c12fb6f76f84f654dbdcdc89e76Douglas Gregor TokLocs[TokNum] = L; 813673ecd6a4a9f7c12fb6f76f84f654dbdcdc89e76Douglas Gregor } 814673ecd6a4a9f7c12fb6f76f84f654dbdcdc89e76Douglas Gregor 815b137299ce5bb6c36fbba651858600857fda4dd50Chris Lattner typedef const SourceLocation *tokloc_iterator; 816b137299ce5bb6c36fbba651858600857fda4dd50Chris Lattner tokloc_iterator tokloc_begin() const { return TokLocs; } 817b137299ce5bb6c36fbba651858600857fda4dd50Chris Lattner tokloc_iterator tokloc_end() const { return TokLocs+NumConcatenated; } 8185f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 8191eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump virtual SourceRange getSourceRange() const { 8201eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return SourceRange(TokLocs[0], TokLocs[NumConcatenated-1]); 8215f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 8221eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 8231eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == StringLiteralClass; 8245f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 8255f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const StringLiteral *) { return true; } 8261eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 82777ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek // Iterators 82877ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_begin(); 82977ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_end(); 8305f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 8315f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 8325f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// ParenExpr - This represents a parethesized expression, e.g. "(1)". This 8335f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// AST node is only formed if full location information is requested. 8345f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass ParenExpr : public Expr { 8355f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation L, R; 8365549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Stmt *Val; 8375f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 8385f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ParenExpr(SourceLocation l, SourceLocation r, Expr *val) 839898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor : Expr(ParenExprClass, val->getType(), 8401eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump val->isTypeDependent(), val->isValueDependent()), 841898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor L(l), R(r), Val(val) {} 8421eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 843c04db4feefa2b0dbbc6876cb4eeeee108aa6791dDouglas Gregor /// \brief Construct an empty parenthesized expression. 8441eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump explicit ParenExpr(EmptyShell Empty) 845c04db4feefa2b0dbbc6876cb4eeeee108aa6791dDouglas Gregor : Expr(ParenExprClass, Empty) { } 846c04db4feefa2b0dbbc6876cb4eeeee108aa6791dDouglas Gregor 8475549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek const Expr *getSubExpr() const { return cast<Expr>(Val); } 8485549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getSubExpr() { return cast<Expr>(Val); } 849c04db4feefa2b0dbbc6876cb4eeeee108aa6791dDouglas Gregor void setSubExpr(Expr *E) { Val = E; } 850c04db4feefa2b0dbbc6876cb4eeeee108aa6791dDouglas Gregor 851866b5c03e3b9c01cf496ad97b85a05afc917345bTed Kremenek virtual SourceRange getSourceRange() const { return SourceRange(L, R); } 8525f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 853313a81dd820c9b2c0203bdcd974c781a81e4f0cfDouglas Gregor /// \brief Get the location of the left parentheses '('. 854313a81dd820c9b2c0203bdcd974c781a81e4f0cfDouglas Gregor SourceLocation getLParen() const { return L; } 855c04db4feefa2b0dbbc6876cb4eeeee108aa6791dDouglas Gregor void setLParen(SourceLocation Loc) { L = Loc; } 856313a81dd820c9b2c0203bdcd974c781a81e4f0cfDouglas Gregor 857313a81dd820c9b2c0203bdcd974c781a81e4f0cfDouglas Gregor /// \brief Get the location of the right parentheses ')'. 858313a81dd820c9b2c0203bdcd974c781a81e4f0cfDouglas Gregor SourceLocation getRParen() const { return R; } 859c04db4feefa2b0dbbc6876cb4eeeee108aa6791dDouglas Gregor void setRParen(SourceLocation Loc) { R = Loc; } 860313a81dd820c9b2c0203bdcd974c781a81e4f0cfDouglas Gregor 8611eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 8621eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == ParenExprClass; 8635f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 8645f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const ParenExpr *) { return true; } 8651eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 86677ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek // Iterators 86777ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_begin(); 86877ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_end(); 8695f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 8705f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 8715f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 8720518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl/// UnaryOperator - This represents the unary-expression's (except sizeof and 8730518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl/// alignof), the postinc/postdec operators from postfix-expression, and various 8745f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// extensions. 875dbb36971c68ea944ac4b1fbe2d97fe7cca3b20acChris Lattner/// 876dbb36971c68ea944ac4b1fbe2d97fe7cca3b20acChris Lattner/// Notes on various nodes: 877dbb36971c68ea944ac4b1fbe2d97fe7cca3b20acChris Lattner/// 878dbb36971c68ea944ac4b1fbe2d97fe7cca3b20acChris Lattner/// Real/Imag - These return the real/imag part of a complex operand. If 879dbb36971c68ea944ac4b1fbe2d97fe7cca3b20acChris Lattner/// applied to a non-complex value, the former returns its operand and the 880dbb36971c68ea944ac4b1fbe2d97fe7cca3b20acChris Lattner/// later returns zero in the type of the operand. 881dbb36971c68ea944ac4b1fbe2d97fe7cca3b20acChris Lattner/// 88273d0d4fac161ed12926e010dcf8b448a8de6a2ecChris Lattner/// __builtin_offsetof(type, a.b[10]) is represented as a unary operator whose 8831eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// subexpression is a compound literal with the various MemberExpr and 88473d0d4fac161ed12926e010dcf8b448a8de6a2ecChris Lattner/// ArraySubscriptExpr's applied to it. 88573d0d4fac161ed12926e010dcf8b448a8de6a2ecChris Lattner/// 8865f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass UnaryOperator : public Expr { 8875f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 88813d130c3d225cdb5b1e6d9e86cea12eea718c707Chris Lattner // Note that additions to this should also update the StmtVisitor class. 8895f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer enum Opcode { 8905f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer PostInc, PostDec, // [C99 6.5.2.4] Postfix increment and decrement operators 8915f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer PreInc, PreDec, // [C99 6.5.3.1] Prefix increment and decrement operators. 8925f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer AddrOf, Deref, // [C99 6.5.3.2] Address and indirection operators. 8935f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Plus, Minus, // [C99 6.5.3.3] Unary arithmetic operators. 8945f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Not, LNot, // [C99 6.5.3.3] Unary arithmetic operators. 8955f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Real, Imag, // "__real expr"/"__imag expr" Extension. 89673d0d4fac161ed12926e010dcf8b448a8de6a2ecChris Lattner Extension, // __extension__ marker. 89773d0d4fac161ed12926e010dcf8b448a8de6a2ecChris Lattner OffsetOf // __builtin_offsetof 8985f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer }; 8995f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerprivate: 9005549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Stmt *Val; 9015f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Opcode Opc; 9025f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation Loc; 9031eb4433ac451dc16f4133a88af2d002ac26c58efMike Stumppublic: 9045f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 9055f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer UnaryOperator(Expr *input, Opcode opc, QualType type, SourceLocation l) 9069103bb27f4eefa0e0d7935387750e3aca24abc49Douglas Gregor : Expr(UnaryOperatorClass, type, 9079103bb27f4eefa0e0d7935387750e3aca24abc49Douglas Gregor input->isTypeDependent() && opc != OffsetOf, 9081eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump input->isValueDependent()), 9099103bb27f4eefa0e0d7935387750e3aca24abc49Douglas Gregor Val(input), Opc(opc), Loc(l) {} 9105f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 9110b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor /// \brief Build an empty unary operator. 9121eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump explicit UnaryOperator(EmptyShell Empty) 9130b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor : Expr(UnaryOperatorClass, Empty), Opc(AddrOf) { } 9140b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor 9155f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Opcode getOpcode() const { return Opc; } 9160b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor void setOpcode(Opcode O) { Opc = O; } 9170b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor 9185549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getSubExpr() const { return cast<Expr>(Val); } 9190b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor void setSubExpr(Expr *E) { Val = E; } 9200b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor 9215f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// getOperatorLoc - Return the location of the operator. 9225f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation getOperatorLoc() const { return Loc; } 9230b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor void setOperatorLoc(SourceLocation L) { Loc = L; } 9240b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor 9255f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// isPostfix - Return true if this is a postfix operation, like x++. 9262085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner static bool isPostfix(Opcode Op) { 9272085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner return Op == PostInc || Op == PostDec; 9282085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner } 9295f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 9305a56ac30d04e8f0431a08980885662a47a6308aaTed Kremenek /// isPostfix - Return true if this is a prefix operation, like --x. 9312085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner static bool isPrefix(Opcode Op) { 9322085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner return Op == PreInc || Op == PreDec; 9332085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner } 9345a56ac30d04e8f0431a08980885662a47a6308aaTed Kremenek 9355a56ac30d04e8f0431a08980885662a47a6308aaTed Kremenek bool isPrefix() const { return isPrefix(Opc); } 9365f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool isPostfix() const { return isPostfix(Opc); } 9375d826b82936beb2c32dd02460332ba8035192c65Ted Kremenek bool isIncrementOp() const {return Opc==PreInc || Opc==PostInc; } 9385f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool isIncrementDecrementOp() const { return Opc>=PostInc && Opc<=PreDec; } 9395a1deb8d9c0722beae28d693fa137bbb942bd11fAnders Carlsson bool isOffsetOfOp() const { return Opc == OffsetOf; } 9405f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool isArithmeticOp(Opcode Op) { return Op >= Plus && Op <= LNot; } 9411eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump bool isArithmeticOp() const { return isArithmeticOp(Opc); } 9421eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 9435f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// getOpcodeStr - Turn an Opcode enum value into the punctuation char it 9445f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// corresponds to, e.g. "sizeof" or "[pre]++" 9455f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static const char *getOpcodeStr(Opcode Op); 9465f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 947bc736fceca6f0bca31d16003a7587857190408fbDouglas Gregor /// \brief Retrieve the unary opcode that corresponds to the given 948bc736fceca6f0bca31d16003a7587857190408fbDouglas Gregor /// overloaded operator. 949bc736fceca6f0bca31d16003a7587857190408fbDouglas Gregor static Opcode getOverloadedOpcode(OverloadedOperatorKind OO, bool Postfix); 950bc736fceca6f0bca31d16003a7587857190408fbDouglas Gregor 951bc736fceca6f0bca31d16003a7587857190408fbDouglas Gregor /// \brief Retrieve the overloaded operator kind that corresponds to 952bc736fceca6f0bca31d16003a7587857190408fbDouglas Gregor /// the given unary opcode. 953bc736fceca6f0bca31d16003a7587857190408fbDouglas Gregor static OverloadedOperatorKind getOverloadedOperator(Opcode Opc); 954bc736fceca6f0bca31d16003a7587857190408fbDouglas Gregor 9555f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer virtual SourceRange getSourceRange() const { 9565f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (isPostfix()) 9575f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return SourceRange(Val->getLocStart(), Loc); 9585f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer else 9595f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return SourceRange(Loc, Val->getLocEnd()); 9605f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 9615f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer virtual SourceLocation getExprLoc() const { return Loc; } 9621eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 9631eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 9641eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == UnaryOperatorClass; 9655f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 9665f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const UnaryOperator *) { return true; } 9671eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 96877ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek // Iterators 96977ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_begin(); 97077ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_end(); 9715f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 9725f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 9730518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl/// SizeOfAlignOfExpr - [C99 6.5.3.4] - This is for sizeof/alignof, both of 9740518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl/// types and expressions. 9750518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redlclass SizeOfAlignOfExpr : public Expr { 9760518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl bool isSizeof : 1; // true if sizeof, false if alignof. 9770518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl bool isType : 1; // true if operand is a type, false if an expression 978d457589fc69dc7a9c80cd74d317c0b81a35a27c9Sebastian Redl union { 979d457589fc69dc7a9c80cd74d317c0b81a35a27c9Sebastian Redl void *Ty; 980d457589fc69dc7a9c80cd74d317c0b81a35a27c9Sebastian Redl Stmt *Ex; 981d457589fc69dc7a9c80cd74d317c0b81a35a27c9Sebastian Redl } Argument; 9825f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation OpLoc, RParenLoc; 98342602bb40aefcc2751d4078ba88aacf4d965c9bdDouglas Gregor 98442602bb40aefcc2751d4078ba88aacf4d965c9bdDouglas Gregorprotected: 98542602bb40aefcc2751d4078ba88aacf4d965c9bdDouglas Gregor virtual void DoDestroy(ASTContext& C); 98642602bb40aefcc2751d4078ba88aacf4d965c9bdDouglas Gregor 9875f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 9881eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump SizeOfAlignOfExpr(bool issizeof, QualType T, 9890518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl QualType resultType, SourceLocation op, 9900518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl SourceLocation rp) : 9912850784bda09416fc7e9d57f5baa36c9351c757cSebastian Redl Expr(SizeOfAlignOfExprClass, resultType, 992ba49817c5b9f502602672861cf369fd0e53966e8Douglas Gregor false, // Never type-dependent (C++ [temp.dep.expr]p3). 9932850784bda09416fc7e9d57f5baa36c9351c757cSebastian Redl // Value-dependent if the argument is type-dependent. 994ba49817c5b9f502602672861cf369fd0e53966e8Douglas Gregor T->isDependentType()), 995ba49817c5b9f502602672861cf369fd0e53966e8Douglas Gregor isSizeof(issizeof), isType(true), OpLoc(op), RParenLoc(rp) { 996ba49817c5b9f502602672861cf369fd0e53966e8Douglas Gregor Argument.Ty = T.getAsOpaquePtr(); 997ba49817c5b9f502602672861cf369fd0e53966e8Douglas Gregor } 998ba49817c5b9f502602672861cf369fd0e53966e8Douglas Gregor 9991eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump SizeOfAlignOfExpr(bool issizeof, Expr *E, 1000ba49817c5b9f502602672861cf369fd0e53966e8Douglas Gregor QualType resultType, SourceLocation op, 1001ba49817c5b9f502602672861cf369fd0e53966e8Douglas Gregor SourceLocation rp) : 1002ba49817c5b9f502602672861cf369fd0e53966e8Douglas Gregor Expr(SizeOfAlignOfExprClass, resultType, 1003ba49817c5b9f502602672861cf369fd0e53966e8Douglas Gregor false, // Never type-dependent (C++ [temp.dep.expr]p3). 1004ba49817c5b9f502602672861cf369fd0e53966e8Douglas Gregor // Value-dependent if the argument is type-dependent. 1005ba49817c5b9f502602672861cf369fd0e53966e8Douglas Gregor E->isTypeDependent()), 1006ba49817c5b9f502602672861cf369fd0e53966e8Douglas Gregor isSizeof(issizeof), isType(false), OpLoc(op), RParenLoc(rp) { 1007ba49817c5b9f502602672861cf369fd0e53966e8Douglas Gregor Argument.Ex = E; 1008d457589fc69dc7a9c80cd74d317c0b81a35a27c9Sebastian Redl } 10090518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl 10100b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor /// \brief Construct an empty sizeof/alignof expression. 10110b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor explicit SizeOfAlignOfExpr(EmptyShell Empty) 10120b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor : Expr(SizeOfAlignOfExprClass, Empty) { } 10130b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor 10145f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool isSizeOf() const { return isSizeof; } 10150b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor void setSizeof(bool S) { isSizeof = S; } 10160b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor 10170518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl bool isArgumentType() const { return isType; } 10180518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl QualType getArgumentType() const { 10190518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl assert(isArgumentType() && "calling getArgumentType() when arg is expr"); 1020d457589fc69dc7a9c80cd74d317c0b81a35a27c9Sebastian Redl return QualType::getFromOpaquePtr(Argument.Ty); 10210518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl } 1022caae7b099a0324b7c15dc89a9b70969d5d7ce996Chris Lattner Expr *getArgumentExpr() { 10230518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl assert(!isArgumentType() && "calling getArgumentExpr() when arg is type"); 1024d457589fc69dc7a9c80cd74d317c0b81a35a27c9Sebastian Redl return static_cast<Expr*>(Argument.Ex); 10250518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl } 1026caae7b099a0324b7c15dc89a9b70969d5d7ce996Chris Lattner const Expr *getArgumentExpr() const { 1027caae7b099a0324b7c15dc89a9b70969d5d7ce996Chris Lattner return const_cast<SizeOfAlignOfExpr*>(this)->getArgumentExpr(); 1028caae7b099a0324b7c15dc89a9b70969d5d7ce996Chris Lattner } 10290b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor 10300b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor void setArgument(Expr *E) { Argument.Ex = E; isType = false; } 10311eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump void setArgument(QualType T) { 10321eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump Argument.Ty = T.getAsOpaquePtr(); 10331eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump isType = true; 10340b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor } 10350b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor 10360518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl /// Gets the argument type, or the type of the argument expression, whichever 10370518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl /// is appropriate. 10380518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl QualType getTypeOfArgument() const { 10390518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl return isArgumentType() ? getArgumentType() : getArgumentExpr()->getType(); 10400518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl } 10410518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl 104276e773a443be9f006610f46529e07d4c8d857680Chris Lattner SourceLocation getOperatorLoc() const { return OpLoc; } 10430b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor void setOperatorLoc(SourceLocation L) { OpLoc = L; } 10440b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor 10450b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor SourceLocation getRParenLoc() const { return RParenLoc; } 10460b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor void setRParenLoc(SourceLocation L) { RParenLoc = L; } 1047866b5c03e3b9c01cf496ad97b85a05afc917345bTed Kremenek 1048866b5c03e3b9c01cf496ad97b85a05afc917345bTed Kremenek virtual SourceRange getSourceRange() const { 1049866b5c03e3b9c01cf496ad97b85a05afc917345bTed Kremenek return SourceRange(OpLoc, RParenLoc); 1050866b5c03e3b9c01cf496ad97b85a05afc917345bTed Kremenek } 10515f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 10521eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 10531eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == SizeOfAlignOfExprClass; 10545f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 10550518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl static bool classof(const SizeOfAlignOfExpr *) { return true; } 10561eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 105777ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek // Iterators 105877ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_begin(); 105977ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_end(); 10605f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 10615f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 10625f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer//===----------------------------------------------------------------------===// 10635f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// Postfix Operators. 10645f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer//===----------------------------------------------------------------------===// 10655f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 10665f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// ArraySubscriptExpr - [C99 6.5.2.1] Array Subscripting. 10675f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass ArraySubscriptExpr : public Expr { 106877ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek enum { LHS, RHS, END_EXPR=2 }; 10691eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump Stmt* SubExprs[END_EXPR]; 10705f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation RBracketLoc; 10715f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 10722324512285caac0332bbbc6e4cab6245d2a370a1Ted Kremenek ArraySubscriptExpr(Expr *lhs, Expr *rhs, QualType t, 107373d0d4fac161ed12926e010dcf8b448a8de6a2ecChris Lattner SourceLocation rbracketloc) 10742850784bda09416fc7e9d57f5baa36c9351c757cSebastian Redl : Expr(ArraySubscriptExprClass, t, 10752850784bda09416fc7e9d57f5baa36c9351c757cSebastian Redl lhs->isTypeDependent() || rhs->isTypeDependent(), 10762850784bda09416fc7e9d57f5baa36c9351c757cSebastian Redl lhs->isValueDependent() || rhs->isValueDependent()), 10772850784bda09416fc7e9d57f5baa36c9351c757cSebastian Redl RBracketLoc(rbracketloc) { 107873d0d4fac161ed12926e010dcf8b448a8de6a2ecChris Lattner SubExprs[LHS] = lhs; 107973d0d4fac161ed12926e010dcf8b448a8de6a2ecChris Lattner SubExprs[RHS] = rhs; 108073d0d4fac161ed12926e010dcf8b448a8de6a2ecChris Lattner } 10811eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1082cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor /// \brief Create an empty array subscript expression. 1083cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor explicit ArraySubscriptExpr(EmptyShell Shell) 1084cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor : Expr(ArraySubscriptExprClass, Shell) { } 1085cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor 10862324512285caac0332bbbc6e4cab6245d2a370a1Ted Kremenek /// An array access can be written A[4] or 4[A] (both are equivalent). 10872324512285caac0332bbbc6e4cab6245d2a370a1Ted Kremenek /// - getBase() and getIdx() always present the normalized view: A[4]. 10882324512285caac0332bbbc6e4cab6245d2a370a1Ted Kremenek /// In this case getBase() returns "A" and getIdx() returns "4". 10892324512285caac0332bbbc6e4cab6245d2a370a1Ted Kremenek /// - getLHS() and getRHS() present the syntactic view. e.g. for 10902324512285caac0332bbbc6e4cab6245d2a370a1Ted Kremenek /// 4[A] getLHS() returns "4". 109133fd5c124aac15bab7cad95e4e0e7761356d2c06Christopher Lamb /// Note: Because vector element access is also written A[4] we must 109233fd5c124aac15bab7cad95e4e0e7761356d2c06Christopher Lamb /// predicate the format conversion in getBase and getIdx only on the 109333fd5c124aac15bab7cad95e4e0e7761356d2c06Christopher Lamb /// the type of the RHS, as it is possible for the LHS to be a vector of 109433fd5c124aac15bab7cad95e4e0e7761356d2c06Christopher Lamb /// integer type 10955549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getLHS() { return cast<Expr>(SubExprs[LHS]); } 10965549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek const Expr *getLHS() const { return cast<Expr>(SubExprs[LHS]); } 1097cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor void setLHS(Expr *E) { SubExprs[LHS] = E; } 1098cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor 10995549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getRHS() { return cast<Expr>(SubExprs[RHS]); } 11005549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek const Expr *getRHS() const { return cast<Expr>(SubExprs[RHS]); } 1101cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor void setRHS(Expr *E) { SubExprs[RHS] = E; } 11021eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 11031eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump Expr *getBase() { 11045549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek return cast<Expr>(getRHS()->getType()->isIntegerType() ? getLHS():getRHS()); 110577ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek } 11061eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 11071eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump const Expr *getBase() const { 11085549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek return cast<Expr>(getRHS()->getType()->isIntegerType() ? getLHS():getRHS()); 11092324512285caac0332bbbc6e4cab6245d2a370a1Ted Kremenek } 11101eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 11111eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump Expr *getIdx() { 11125549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek return cast<Expr>(getRHS()->getType()->isIntegerType() ? getRHS():getLHS()); 11132324512285caac0332bbbc6e4cab6245d2a370a1Ted Kremenek } 11141eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 111577ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek const Expr *getIdx() const { 11165549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek return cast<Expr>(getRHS()->getType()->isIntegerType() ? getRHS():getLHS()); 11171eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump } 11181eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 11191eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump virtual SourceRange getSourceRange() const { 112077ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek return SourceRange(getLHS()->getLocStart(), RBracketLoc); 11215f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 11221eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1123026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner SourceLocation getRBracketLoc() const { return RBracketLoc; } 1124cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor void setRBracketLoc(SourceLocation L) { RBracketLoc = L; } 1125cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor 11265cd9d6daf3acd4cc87fecebd81d9495b9e4ba9cdChris Lattner virtual SourceLocation getExprLoc() const { return getBase()->getExprLoc(); } 11275f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 11281eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 11291eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == ArraySubscriptExprClass; 11305f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 11315f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const ArraySubscriptExpr *) { return true; } 11321eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 113377ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek // Iterators 113477ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_begin(); 113577ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_end(); 11365f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 11375f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 11385f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1139b4609806e9232593ece09ce08b630836e825865cDouglas Gregor/// CallExpr - Represents a function call (C99 6.5.2.2, C++ [expr.call]). 11401eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// CallExpr itself represents a normal function call, e.g., "f(x, 2)", 1141b4609806e9232593ece09ce08b630836e825865cDouglas Gregor/// while its subclasses may represent alternative syntax that (semantically) 11421eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// results in a function call. For example, CXXOperatorCallExpr is 1143b4609806e9232593ece09ce08b630836e825865cDouglas Gregor/// a subclass for overloaded operator calls that use operator syntax, e.g., 1144b4609806e9232593ece09ce08b630836e825865cDouglas Gregor/// "str1 + str2" to resolve to a function call. 11455f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass CallExpr : public Expr { 114677ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek enum { FN=0, ARGS_START=1 }; 11475549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Stmt **SubExprs; 11485f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer unsigned NumArgs; 11495f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation RParenLoc; 11501eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1151b4609806e9232593ece09ce08b630836e825865cDouglas Gregorprotected: 1152b4609806e9232593ece09ce08b630836e825865cDouglas Gregor // This version of the constructor is for derived classes. 1153668bf91d31265b6ea8c3eb854ba450857701f269Ted Kremenek CallExpr(ASTContext& C, StmtClass SC, Expr *fn, Expr **args, unsigned numargs, 1154668bf91d31265b6ea8c3eb854ba450857701f269Ted Kremenek QualType t, SourceLocation rparenloc); 115542602bb40aefcc2751d4078ba88aacf4d965c9bdDouglas Gregor 115642602bb40aefcc2751d4078ba88aacf4d965c9bdDouglas Gregor virtual void DoDestroy(ASTContext& C); 11571eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 11585f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 11591eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump CallExpr(ASTContext& C, Expr *fn, Expr **args, unsigned numargs, QualType t, 11605f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation rparenloc); 11611eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 11621f0d0133b0e8d1f01f63951ee04927796b34740dDouglas Gregor /// \brief Build an empty call expression. 1163ba0a9006dbc4814e1e35f82812cb5a1dad65e8b8Argyrios Kyrtzidis CallExpr(ASTContext &C, StmtClass SC, EmptyShell Empty); 11641f0d0133b0e8d1f01f63951ee04927796b34740dDouglas Gregor 1165668bf91d31265b6ea8c3eb854ba450857701f269Ted Kremenek ~CallExpr() {} 11661eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 11675549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek const Expr *getCallee() const { return cast<Expr>(SubExprs[FN]); } 11685549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getCallee() { return cast<Expr>(SubExprs[FN]); } 116918b2515e1bf8c86a4900792692e42fe1296be28dChris Lattner void setCallee(Expr *F) { SubExprs[FN] = F; } 1170a00425414e8c209cabc25d1826b200aeb94259afZhongxing Xu 1171a00425414e8c209cabc25d1826b200aeb94259afZhongxing Xu /// \brief If the callee is a FunctionDecl, return it. Otherwise return 0. 1172a00425414e8c209cabc25d1826b200aeb94259afZhongxing Xu FunctionDecl *getDirectCallee(); 1173bc8d42c6f1565c0b2f93ad524edebfd7a4e6cac6Chris Lattner const FunctionDecl *getDirectCallee() const { 1174bc8d42c6f1565c0b2f93ad524edebfd7a4e6cac6Chris Lattner return const_cast<CallExpr*>(this)->getDirectCallee(); 1175bc8d42c6f1565c0b2f93ad524edebfd7a4e6cac6Chris Lattner } 1176a00425414e8c209cabc25d1826b200aeb94259afZhongxing Xu 11775f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// getNumArgs - Return the number of actual arguments to this call. 11785f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// 11795f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer unsigned getNumArgs() const { return NumArgs; } 11801eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 11815f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// getArg - Return the specified argument. 11825f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Expr *getArg(unsigned Arg) { 11835f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer assert(Arg < NumArgs && "Arg access out of range!"); 11845549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek return cast<Expr>(SubExprs[Arg+ARGS_START]); 11855f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 11865f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer const Expr *getArg(unsigned Arg) const { 11875f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer assert(Arg < NumArgs && "Arg access out of range!"); 11885549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek return cast<Expr>(SubExprs[Arg+ARGS_START]); 11895f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 11901eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1191934f276cc5b45e19cd12ebb2d04fd7972a23865cSteve Naroff /// setArg - Set the specified argument. 1192934f276cc5b45e19cd12ebb2d04fd7972a23865cSteve Naroff void setArg(unsigned Arg, Expr *ArgExpr) { 1193934f276cc5b45e19cd12ebb2d04fd7972a23865cSteve Naroff assert(Arg < NumArgs && "Arg access out of range!"); 1194934f276cc5b45e19cd12ebb2d04fd7972a23865cSteve Naroff SubExprs[Arg+ARGS_START] = ArgExpr; 1195934f276cc5b45e19cd12ebb2d04fd7972a23865cSteve Naroff } 11961eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1197d18b3299debb7b0dbd9d34d9369189dc98c87f53Chris Lattner /// setNumArgs - This changes the number of arguments present in this call. 1198d18b3299debb7b0dbd9d34d9369189dc98c87f53Chris Lattner /// Any orphaned expressions are deleted by this, and any new operands are set 1199d18b3299debb7b0dbd9d34d9369189dc98c87f53Chris Lattner /// to null. 12008189cde56b4f6f938cd65f53c932fe1860d0204cTed Kremenek void setNumArgs(ASTContext& C, unsigned NumArgs); 12011eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 12025549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek typedef ExprIterator arg_iterator; 12035549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek typedef ConstExprIterator const_arg_iterator; 12041eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1205d18b3299debb7b0dbd9d34d9369189dc98c87f53Chris Lattner arg_iterator arg_begin() { return SubExprs+ARGS_START; } 1206d18b3299debb7b0dbd9d34d9369189dc98c87f53Chris Lattner arg_iterator arg_end() { return SubExprs+ARGS_START+getNumArgs(); } 12075549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek const_arg_iterator arg_begin() const { return SubExprs+ARGS_START; } 12085549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek const_arg_iterator arg_end() const { return SubExprs+ARGS_START+getNumArgs();} 12091eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 12105f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// getNumCommas - Return the number of commas that must have been present in 12115f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// this function call. 12125f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer unsigned getNumCommas() const { return NumArgs ? NumArgs - 1 : 0; } 12135f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1214cb888967400a03504c88acedd5248d6778a82f46Chris Lattner /// isBuiltinCall - If this is a call to a builtin, return the builtin ID. If 1215cb888967400a03504c88acedd5248d6778a82f46Chris Lattner /// not, return 0. 12163c385e5f8d9008fff18597ca302be19fa86e51f6Douglas Gregor unsigned isBuiltinCall(ASTContext &Context) const; 12171eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 12181eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /// getCallReturnType - Get the return type of the call expr. This is not 12191eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /// always the type of the expr itself, if the return type is a reference 12206dde78f744382a5627a04f984a97049e0c4b5e73Anders Carlsson /// type. 12216dde78f744382a5627a04f984a97049e0c4b5e73Anders Carlsson QualType getCallReturnType() const; 12221eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1223d18b3299debb7b0dbd9d34d9369189dc98c87f53Chris Lattner SourceLocation getRParenLoc() const { return RParenLoc; } 12241f0d0133b0e8d1f01f63951ee04927796b34740dDouglas Gregor void setRParenLoc(SourceLocation L) { RParenLoc = L; } 1225866b5c03e3b9c01cf496ad97b85a05afc917345bTed Kremenek 12261eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump virtual SourceRange getSourceRange() const { 122777ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek return SourceRange(getCallee()->getLocStart(), RParenLoc); 12285f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 12291eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 12301eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 1231b4609806e9232593ece09ce08b630836e825865cDouglas Gregor return T->getStmtClass() == CallExprClass || 123288a3514f36de96b19cdf50141c640df1a5f13f6cDouglas Gregor T->getStmtClass() == CXXOperatorCallExprClass || 12331eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump T->getStmtClass() == CXXMemberCallExprClass; 12345f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 12355f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const CallExpr *) { return true; } 123688a3514f36de96b19cdf50141c640df1a5f13f6cDouglas Gregor static bool classof(const CXXOperatorCallExpr *) { return true; } 123788a3514f36de96b19cdf50141c640df1a5f13f6cDouglas Gregor static bool classof(const CXXMemberCallExpr *) { return true; } 123888a3514f36de96b19cdf50141c640df1a5f13f6cDouglas Gregor 123977ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek // Iterators 124077ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_begin(); 124177ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_end(); 12425f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 12435f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1244ddca44e86281bb7dcf5fdcaf1563434c524e3861Chris Lattner/// MemberExpr - [C99 6.5.2.3] Structure and Union Members. X->F and X.F. 12455f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 12465f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass MemberExpr : public Expr { 1247ddca44e86281bb7dcf5fdcaf1563434c524e3861Chris Lattner /// Base - the expression for the base pointer or structure references. In 1248ddca44e86281bb7dcf5fdcaf1563434c524e3861Chris Lattner /// X.F, this is "X". 12495549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Stmt *Base; 12501eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1251ddca44e86281bb7dcf5fdcaf1563434c524e3861Chris Lattner /// MemberDecl - This is the decl being referenced by the field/member name. 1252ddca44e86281bb7dcf5fdcaf1563434c524e3861Chris Lattner /// In X.F, this is the decl referenced by F. 125386f194083504938df72135b5b66bf0c5cafd9498Douglas Gregor NamedDecl *MemberDecl; 12541eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1255ddca44e86281bb7dcf5fdcaf1563434c524e3861Chris Lattner /// MemberLoc - This is the location of the member name. 12565f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation MemberLoc; 12571eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1258ddca44e86281bb7dcf5fdcaf1563434c524e3861Chris Lattner /// IsArrow - True if this is "X->F", false if this is "X.F". 125983f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor bool IsArrow : 1; 12601eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 126183f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor /// \brief True if this member expression used a nested-name-specifier to 12621eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /// refer to the member, e.g., "x->Base::f". When true, a NameQualifier 1263c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor /// structure is allocated immediately after the MemberExpr. 126483f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor bool HasQualifier : 1; 12651eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1266c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor /// \brief True if this member expression specified a template argument list 1267c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor /// explicitly, e.g., x->f<int>. When true, an ExplicitTemplateArgumentList 1268c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor /// structure (and its TemplateArguments) are allocated immediately after 1269c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor /// the MemberExpr or, if the member expression also has a qualifier, after 1270c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor /// the NameQualifier structure. 1271c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor bool HasExplicitTemplateArgumentList : 1; 12721eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 127383f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor /// \brief Retrieve the qualifier that preceded the member name, if any. 127483f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor NameQualifier *getMemberQualifier() { 127583f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor if (!HasQualifier) 127683f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor return 0; 12771eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 127883f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor return reinterpret_cast<NameQualifier *> (this + 1); 127983f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor } 128083f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor 128183f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor /// \brief Retrieve the qualifier that preceded the member name, if any. 128283f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor const NameQualifier *getMemberQualifier() const { 1283c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor return const_cast<MemberExpr *>(this)->getMemberQualifier(); 1284c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor } 12851eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1286c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor /// \brief Retrieve the explicit template argument list that followed the 1287c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor /// member template name, if any. 1288c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor ExplicitTemplateArgumentList *getExplicitTemplateArgumentList() { 1289c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor if (!HasExplicitTemplateArgumentList) 129083f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor return 0; 12911eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1292c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor if (!HasQualifier) 1293c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor return reinterpret_cast<ExplicitTemplateArgumentList *>(this + 1); 12941eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1295c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor return reinterpret_cast<ExplicitTemplateArgumentList *>( 1296c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor getMemberQualifier() + 1); 1297c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor } 12981eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1299c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor /// \brief Retrieve the explicit template argument list that followed the 1300c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor /// member template name, if any. 1301c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor const ExplicitTemplateArgumentList *getExplicitTemplateArgumentList() const { 1302c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor return const_cast<MemberExpr *>(this)->getExplicitTemplateArgumentList(); 130383f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor } 13041eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 13051eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump MemberExpr(Expr *base, bool isarrow, NestedNameSpecifier *qual, 130683f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor SourceRange qualrange, NamedDecl *memberdecl, SourceLocation l, 13071eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump bool has_explicit, SourceLocation langle, 1308833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall const TemplateArgumentLoc *targs, unsigned numtargs, 13091eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump SourceLocation rangle, QualType ty); 131083f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor 13115f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 131286f194083504938df72135b5b66bf0c5cafd9498Douglas Gregor MemberExpr(Expr *base, bool isarrow, NamedDecl *memberdecl, SourceLocation l, 13131eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump QualType ty) 13141eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump : Expr(MemberExprClass, ty, 1315ffce2df6ae280d354d51371282a579df1eb86876Anders Carlsson base->isTypeDependent(), base->isValueDependent()), 131683f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor Base(base), MemberDecl(memberdecl), MemberLoc(l), IsArrow(isarrow), 1317c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor HasQualifier(false), HasExplicitTemplateArgumentList(false) {} 1318510190777c4bd53e960eea4665b204778fec1b64Eli Friedman 13191f0d0133b0e8d1f01f63951ee04927796b34740dDouglas Gregor /// \brief Build an empty member reference expression. 13201eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump explicit MemberExpr(EmptyShell Empty) 13211eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump : Expr(MemberExprClass, Empty), HasQualifier(false), 1322e6585a7d71510be00a625686153f48d496d3bbf1Douglas Gregor HasExplicitTemplateArgumentList(false) { } 13231f0d0133b0e8d1f01f63951ee04927796b34740dDouglas Gregor 13241eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static MemberExpr *Create(ASTContext &C, Expr *base, bool isarrow, 132583f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor NestedNameSpecifier *qual, SourceRange qualrange, 13261eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump NamedDecl *memberdecl, 1327c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor SourceLocation l, 1328c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor bool has_explicit, 1329c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor SourceLocation langle, 1330833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall const TemplateArgumentLoc *targs, 1331c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor unsigned numtargs, 1332c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor SourceLocation rangle, 1333c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor QualType ty); 13341eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 133588a3514f36de96b19cdf50141c640df1a5f13f6cDouglas Gregor void setBase(Expr *E) { Base = E; } 13365549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getBase() const { return cast<Expr>(Base); } 133757e8b05fe9ba03d410db9c161e032cb79c9ab5baDouglas Gregor 133857e8b05fe9ba03d410db9c161e032cb79c9ab5baDouglas Gregor /// \brief Retrieve the member declaration to which this expression refers. 133957e8b05fe9ba03d410db9c161e032cb79c9ab5baDouglas Gregor /// 134057e8b05fe9ba03d410db9c161e032cb79c9ab5baDouglas Gregor /// The returned declaration will either be a FieldDecl or (in C++) 134157e8b05fe9ba03d410db9c161e032cb79c9ab5baDouglas Gregor /// a CXXMethodDecl. 134286f194083504938df72135b5b66bf0c5cafd9498Douglas Gregor NamedDecl *getMemberDecl() const { return MemberDecl; } 134388a3514f36de96b19cdf50141c640df1a5f13f6cDouglas Gregor void setMemberDecl(NamedDecl *D) { MemberDecl = D; } 13441f0d0133b0e8d1f01f63951ee04927796b34740dDouglas Gregor 13451eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /// \brief Determines whether this member expression actually had 13460979c805475d1ba49b5d6ef93c4d2ce6d2eab6edDouglas Gregor /// a C++ nested-name-specifier prior to the name of the member, e.g., 13470979c805475d1ba49b5d6ef93c4d2ce6d2eab6edDouglas Gregor /// x->Base::foo. 134883f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor bool hasQualifier() const { return HasQualifier; } 13491eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 135083f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor /// \brief If the member name was qualified, retrieves the source range of 135183f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor /// the nested-name-specifier that precedes the member name. Otherwise, 135283f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor /// returns an empty source range. 13531eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump SourceRange getQualifierRange() const { 135483f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor if (!HasQualifier) 135583f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor return SourceRange(); 13561eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 135783f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor return getMemberQualifier()->Range; 135883f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor } 13591eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 13601eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /// \brief If the member name was qualified, retrieves the 136183f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor /// nested-name-specifier that precedes the member name. Otherwise, returns 136283f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor /// NULL. 13631eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump NestedNameSpecifier *getQualifier() const { 136483f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor if (!HasQualifier) 136583f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor return 0; 13661eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 136783f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor return getMemberQualifier()->NNS; 136883f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor } 1369c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor 1370c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor /// \brief Determines whether this member expression actually had a C++ 1371c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor /// template argument list explicitly specified, e.g., x.f<int>. 13721eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump bool hasExplicitTemplateArgumentList() { 13731eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return HasExplicitTemplateArgumentList; 1374c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor } 13751eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 13761eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /// \brief Retrieve the location of the left angle bracket following the 1377c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor /// member name ('<'), if any. 13781eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump SourceLocation getLAngleLoc() const { 1379c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor if (!HasExplicitTemplateArgumentList) 1380c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor return SourceLocation(); 13811eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1382c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor return getExplicitTemplateArgumentList()->LAngleLoc; 1383c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor } 13841eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1385c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor /// \brief Retrieve the template arguments provided as part of this 1386c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor /// template-id. 1387833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall const TemplateArgumentLoc *getTemplateArgs() const { 1388c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor if (!HasExplicitTemplateArgumentList) 13891eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return 0; 13901eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1391c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor return getExplicitTemplateArgumentList()->getTemplateArgs(); 1392c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor } 13931eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1394c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor /// \brief Retrieve the number of template arguments provided as part of this 1395c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor /// template-id. 13961eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump unsigned getNumTemplateArgs() const { 1397c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor if (!HasExplicitTemplateArgumentList) 13981eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return 0; 13991eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1400c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor return getExplicitTemplateArgumentList()->NumTemplateArgs; 1401c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor } 14021eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 14031eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /// \brief Retrieve the location of the right angle bracket following the 1404c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor /// template arguments ('>'). 14051eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump SourceLocation getRAngleLoc() const { 1406c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor if (!HasExplicitTemplateArgumentList) 1407c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor return SourceLocation(); 14081eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1409c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor return getExplicitTemplateArgumentList()->RAngleLoc; 1410c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor } 14111eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 14125f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool isArrow() const { return IsArrow; } 14131f0d0133b0e8d1f01f63951ee04927796b34740dDouglas Gregor void setArrow(bool A) { IsArrow = A; } 14141f0d0133b0e8d1f01f63951ee04927796b34740dDouglas Gregor 1415ddca44e86281bb7dcf5fdcaf1563434c524e3861Chris Lattner /// getMemberLoc - Return the location of the "member", in X->F, it is the 1416ddca44e86281bb7dcf5fdcaf1563434c524e3861Chris Lattner /// location of 'F'. 1417026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner SourceLocation getMemberLoc() const { return MemberLoc; } 14181f0d0133b0e8d1f01f63951ee04927796b34740dDouglas Gregor void setMemberLoc(SourceLocation L) { MemberLoc = L; } 14195f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 14205f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer virtual SourceRange getSourceRange() const { 142172527137c521ad9330ecb81ccd841159719dc8cdEli Friedman // If we have an implicit base (like a C++ implicit this), 142272527137c521ad9330ecb81ccd841159719dc8cdEli Friedman // make sure not to return its location 1423c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor SourceLocation EndLoc = MemberLoc; 1424c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor if (HasExplicitTemplateArgumentList) 1425c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor EndLoc = getRAngleLoc(); 14261eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 142772527137c521ad9330ecb81ccd841159719dc8cdEli Friedman SourceLocation BaseLoc = getBase()->getLocStart(); 142872527137c521ad9330ecb81ccd841159719dc8cdEli Friedman if (BaseLoc.isInvalid()) 1429c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor return SourceRange(MemberLoc, EndLoc); 1430c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor return SourceRange(BaseLoc, EndLoc); 14315f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 14321eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 14335f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer virtual SourceLocation getExprLoc() const { return MemberLoc; } 14345f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 14351eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 143683f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor return T->getStmtClass() == MemberExprClass; 14375f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 14385f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const MemberExpr *) { return true; } 14391eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 14401237c673c07f9d827129ba02720108816abde562Ted Kremenek // Iterators 14411237c673c07f9d827129ba02720108816abde562Ted Kremenek virtual child_iterator child_begin(); 14421237c673c07f9d827129ba02720108816abde562Ted Kremenek virtual child_iterator child_end(); 14435f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 14445f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 14451eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// CompoundLiteralExpr - [C99 6.5.2.5] 1446aff1edd84aaafef15b737acd8ec61abcca6d6bc3Steve Naroff/// 1447aff1edd84aaafef15b737acd8ec61abcca6d6bc3Steve Naroffclass CompoundLiteralExpr : public Expr { 14480fc53dfc7a33f68e71ef245389c4e7cd34a62a39Chris Lattner /// LParenLoc - If non-null, this is the location of the left paren in a 14490fc53dfc7a33f68e71ef245389c4e7cd34a62a39Chris Lattner /// compound literal like "(int){4}". This can be null if this is a 14500fc53dfc7a33f68e71ef245389c4e7cd34a62a39Chris Lattner /// synthesized compound expression. 14510fc53dfc7a33f68e71ef245389c4e7cd34a62a39Chris Lattner SourceLocation LParenLoc; 14525549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Stmt *Init; 1453e9b12198c4cc7f5687960100351b4af006c14469Steve Naroff bool FileScope; 1454aff1edd84aaafef15b737acd8ec61abcca6d6bc3Steve Naroffpublic: 1455a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner CompoundLiteralExpr(SourceLocation lparenloc, QualType ty, Expr *init, 1456a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner bool fileScope) 1457a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner : Expr(CompoundLiteralExprClass, ty), LParenLoc(lparenloc), Init(init), 1458a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner FileScope(fileScope) {} 14591eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1460ba6d7e7fa5f79959d3eef39adb5620d845ba5198Douglas Gregor /// \brief Construct an empty compound literal. 1461ba6d7e7fa5f79959d3eef39adb5620d845ba5198Douglas Gregor explicit CompoundLiteralExpr(EmptyShell Empty) 1462ba6d7e7fa5f79959d3eef39adb5620d845ba5198Douglas Gregor : Expr(CompoundLiteralExprClass, Empty) { } 1463ba6d7e7fa5f79959d3eef39adb5620d845ba5198Douglas Gregor 14645549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek const Expr *getInitializer() const { return cast<Expr>(Init); } 14655549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getInitializer() { return cast<Expr>(Init); } 1466ba6d7e7fa5f79959d3eef39adb5620d845ba5198Douglas Gregor void setInitializer(Expr *E) { Init = E; } 1467e9b12198c4cc7f5687960100351b4af006c14469Steve Naroff 1468e9b12198c4cc7f5687960100351b4af006c14469Steve Naroff bool isFileScope() const { return FileScope; } 1469ba6d7e7fa5f79959d3eef39adb5620d845ba5198Douglas Gregor void setFileScope(bool FS) { FileScope = FS; } 1470ba6d7e7fa5f79959d3eef39adb5620d845ba5198Douglas Gregor 14710fc53dfc7a33f68e71ef245389c4e7cd34a62a39Chris Lattner SourceLocation getLParenLoc() const { return LParenLoc; } 1472ba6d7e7fa5f79959d3eef39adb5620d845ba5198Douglas Gregor void setLParenLoc(SourceLocation L) { LParenLoc = L; } 1473ba6d7e7fa5f79959d3eef39adb5620d845ba5198Douglas Gregor 147473d0d4fac161ed12926e010dcf8b448a8de6a2ecChris Lattner virtual SourceRange getSourceRange() const { 14750fc53dfc7a33f68e71ef245389c4e7cd34a62a39Chris Lattner // FIXME: Init should never be null. 14760fc53dfc7a33f68e71ef245389c4e7cd34a62a39Chris Lattner if (!Init) 14770fc53dfc7a33f68e71ef245389c4e7cd34a62a39Chris Lattner return SourceRange(); 14780fc53dfc7a33f68e71ef245389c4e7cd34a62a39Chris Lattner if (LParenLoc.isInvalid()) 147973d0d4fac161ed12926e010dcf8b448a8de6a2ecChris Lattner return Init->getSourceRange(); 14800fc53dfc7a33f68e71ef245389c4e7cd34a62a39Chris Lattner return SourceRange(LParenLoc, Init->getLocEnd()); 148173d0d4fac161ed12926e010dcf8b448a8de6a2ecChris Lattner } 1482aff1edd84aaafef15b737acd8ec61abcca6d6bc3Steve Naroff 14831eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 14841eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == CompoundLiteralExprClass; 1485aff1edd84aaafef15b737acd8ec61abcca6d6bc3Steve Naroff } 1486aff1edd84aaafef15b737acd8ec61abcca6d6bc3Steve Naroff static bool classof(const CompoundLiteralExpr *) { return true; } 14871eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 14881237c673c07f9d827129ba02720108816abde562Ted Kremenek // Iterators 14891237c673c07f9d827129ba02720108816abde562Ted Kremenek virtual child_iterator child_begin(); 14901237c673c07f9d827129ba02720108816abde562Ted Kremenek virtual child_iterator child_end(); 1491aff1edd84aaafef15b737acd8ec61abcca6d6bc3Steve Naroff}; 1492aff1edd84aaafef15b737acd8ec61abcca6d6bc3Steve Naroff 149349badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// CastExpr - Base class for type casts, including both implicit 149449badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// casts (ImplicitCastExpr) and explicit casts that have some 149549badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// representation in the source code (ExplicitCastExpr's derived 149649badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// classes). 14970835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidisclass CastExpr : public Expr { 1498cdef2b75aa60cde1ca00e0aa3f89139ac89c6ae4Anders Carlssonpublic: 1499cdef2b75aa60cde1ca00e0aa3f89139ac89c6ae4Anders Carlsson /// CastKind - the kind of cast this represents. 1500cdef2b75aa60cde1ca00e0aa3f89139ac89c6ae4Anders Carlsson enum CastKind { 1501cdef2b75aa60cde1ca00e0aa3f89139ac89c6ae4Anders Carlsson /// CK_Unknown - Unknown cast kind. 15021eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /// FIXME: The goal is to get rid of this and make all casts have a 1503cdef2b75aa60cde1ca00e0aa3f89139ac89c6ae4Anders Carlsson /// kind so that the AST client doesn't have to try to figure out what's 1504cdef2b75aa60cde1ca00e0aa3f89139ac89c6ae4Anders Carlsson /// going on. 1505cdef2b75aa60cde1ca00e0aa3f89139ac89c6ae4Anders Carlsson CK_Unknown, 15061eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1507cdef2b75aa60cde1ca00e0aa3f89139ac89c6ae4Anders Carlsson /// CK_BitCast - Used for reinterpret_cast. 1508cdef2b75aa60cde1ca00e0aa3f89139ac89c6ae4Anders Carlsson CK_BitCast, 15091eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1510cdef2b75aa60cde1ca00e0aa3f89139ac89c6ae4Anders Carlsson /// CK_NoOp - Used for const_cast. 15113503d041ca8a3535a1c1a30005a6b18ae7aed5dbAnders Carlsson CK_NoOp, 15121eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 15133503d041ca8a3535a1c1a30005a6b18ae7aed5dbAnders Carlsson /// CK_DerivedToBase - Derived to base class casts. 1514714179b179a31a0c3769a968ee18ba87b901b13fAnders Carlsson CK_DerivedToBase, 15151eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1516714179b179a31a0c3769a968ee18ba87b901b13fAnders Carlsson /// CK_Dynamic - Dynamic cast. 15174d8673b645ad86e496b886a0f80b60763f67071dAnders Carlsson CK_Dynamic, 15181eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 15194d8673b645ad86e496b886a0f80b60763f67071dAnders Carlsson /// CK_ToUnion - Cast to union (GCC extension). 1520112a0a8ddf23f6d25e0920002d5d4c1df0515f86Anders Carlsson CK_ToUnion, 15211eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1522112a0a8ddf23f6d25e0920002d5d4c1df0515f86Anders Carlsson /// CK_ArrayToPointerDecay - Array to pointer decay. 152327a5b9b9babd1e4f8a19c5c9c0736c4b311c79b2Anders Carlsson CK_ArrayToPointerDecay, 15241eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1525b633c4ee622df81d4572ef57dac54ebed69bb9bfAnders Carlsson // CK_FunctionToPointerDecay - Function to pointer decay. 1526b633c4ee622df81d4572ef57dac54ebed69bb9bfAnders Carlsson CK_FunctionToPointerDecay, 15271eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 152827a5b9b9babd1e4f8a19c5c9c0736c4b311c79b2Anders Carlsson /// CK_NullToMemberPointer - Null pointer to member pointer. 152927a5b9b9babd1e4f8a19c5c9c0736c4b311c79b2Anders Carlsson CK_NullToMemberPointer, 15301eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 153127a5b9b9babd1e4f8a19c5c9c0736c4b311c79b2Anders Carlsson /// CK_BaseToDerivedMemberPointer - Member pointer in base class to 153227a5b9b9babd1e4f8a19c5c9c0736c4b311c79b2Anders Carlsson /// member pointer in derived class. 15339099ff0cf91ac9e0b2d5a142807fa384ce842fc4Fariborz Jahanian CK_BaseToDerivedMemberPointer, 15349099ff0cf91ac9e0b2d5a142807fa384ce842fc4Fariborz Jahanian 15351eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /// CK_UserDefinedConversion - Conversion using a user defined type 153658d3f1af9b4efa426826816a16894986b78b2692Fariborz Jahanian /// conversion function. 15377fe5d72fbc8605b60d42d32394248ea76cf763a0Fariborz Jahanian CK_UserDefinedConversion, 15387fe5d72fbc8605b60d42d32394248ea76cf763a0Fariborz Jahanian 15397fe5d72fbc8605b60d42d32394248ea76cf763a0Fariborz Jahanian /// CK_ConstructorConversion - Conversion by constructor 15407f9e646b7ed47bc8e9a60031ad0c2b55031e2077Anders Carlsson CK_ConstructorConversion, 15417f9e646b7ed47bc8e9a60031ad0c2b55031e2077Anders Carlsson 15427f9e646b7ed47bc8e9a60031ad0c2b55031e2077Anders Carlsson /// CK_IntegralToPointer - Integral to pointer 15437f9e646b7ed47bc8e9a60031ad0c2b55031e2077Anders Carlsson CK_IntegralToPointer, 15447f9e646b7ed47bc8e9a60031ad0c2b55031e2077Anders Carlsson 15457f9e646b7ed47bc8e9a60031ad0c2b55031e2077Anders Carlsson /// CK_PointerToIntegral - Pointer to integral 1546ebeaf2031c968143c531bfe232d7507f20c57347Anders Carlsson CK_PointerToIntegral, 1547ebeaf2031c968143c531bfe232d7507f20c57347Anders Carlsson 1548ebeaf2031c968143c531bfe232d7507f20c57347Anders Carlsson /// CK_ToVoid - Cast to void. 154916a8904f3f5ed19158657e1da95e5902fbee66f7Anders Carlsson CK_ToVoid, 155016a8904f3f5ed19158657e1da95e5902fbee66f7Anders Carlsson 155116a8904f3f5ed19158657e1da95e5902fbee66f7Anders Carlsson /// CK_VectorSplat - Casting from an integer/floating type to an extended 155216a8904f3f5ed19158657e1da95e5902fbee66f7Anders Carlsson /// vector type with the same element type as the src type. Splats the 1553f67cea84bac1d3417f0baaf1fcbc86ee126e2d87Anders Carlsson /// src expression into the destination expression. 155482debc7d282e723e58d183bfa89ddc2500a8daafAnders Carlsson CK_VectorSplat, 155582debc7d282e723e58d183bfa89ddc2500a8daafAnders Carlsson 155682debc7d282e723e58d183bfa89ddc2500a8daafAnders Carlsson /// CK_IntegralCast - Casting between integral types of different size. 155782debc7d282e723e58d183bfa89ddc2500a8daafAnders Carlsson CK_IntegralCast, 155882debc7d282e723e58d183bfa89ddc2500a8daafAnders Carlsson 155982debc7d282e723e58d183bfa89ddc2500a8daafAnders Carlsson /// CK_IntegralToFloating - Integral to floating point. 156082debc7d282e723e58d183bfa89ddc2500a8daafAnders Carlsson CK_IntegralToFloating, 156182debc7d282e723e58d183bfa89ddc2500a8daafAnders Carlsson 156282debc7d282e723e58d183bfa89ddc2500a8daafAnders Carlsson /// CK_FloatingToIntegral - Floating point to integral. 156382debc7d282e723e58d183bfa89ddc2500a8daafAnders Carlsson CK_FloatingToIntegral, 156482debc7d282e723e58d183bfa89ddc2500a8daafAnders Carlsson 156582debc7d282e723e58d183bfa89ddc2500a8daafAnders Carlsson /// CK_FloatingCast - Casting between floating types of different size. 156682debc7d282e723e58d183bfa89ddc2500a8daafAnders Carlsson CK_FloatingCast 1567cdef2b75aa60cde1ca00e0aa3f89139ac89c6ae4Anders Carlsson }; 15681eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1569cdef2b75aa60cde1ca00e0aa3f89139ac89c6ae4Anders Carlssonprivate: 1570cdef2b75aa60cde1ca00e0aa3f89139ac89c6ae4Anders Carlsson CastKind Kind; 15710835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis Stmt *Op; 15720835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidisprotected: 1573c0a2fd8f092722c8f78b566ac4506a21437040e9Anders Carlsson CastExpr(StmtClass SC, QualType ty, const CastKind kind, Expr *op) : 1574898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor Expr(SC, ty, 1575898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // Cast expressions are type-dependent if the type is 1576898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // dependent (C++ [temp.dep.expr]p3). 1577898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor ty->isDependentType(), 1578898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // Cast expressions are value-dependent if the type is 1579898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // dependent or if the subexpression is value-dependent. 15801eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump ty->isDependentType() || (op && op->isValueDependent())), 1581c0a2fd8f092722c8f78b566ac4506a21437040e9Anders Carlsson Kind(kind), Op(op) {} 15821eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1583087fd536809ebe754d91c641a98917e02dd7452dDouglas Gregor /// \brief Construct an empty cast. 15841eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump CastExpr(StmtClass SC, EmptyShell Empty) 1585087fd536809ebe754d91c641a98917e02dd7452dDouglas Gregor : Expr(SC, Empty) { } 15861eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 15870835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidispublic: 1588cdef2b75aa60cde1ca00e0aa3f89139ac89c6ae4Anders Carlsson CastKind getCastKind() const { return Kind; } 1589cdef2b75aa60cde1ca00e0aa3f89139ac89c6ae4Anders Carlsson void setCastKind(CastKind K) { Kind = K; } 1590f8ec55a104e55961f8666f773dce99bbc628298fAnders Carlsson const char *getCastKindName() const; 1591f8ec55a104e55961f8666f773dce99bbc628298fAnders Carlsson 15920835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis Expr *getSubExpr() { return cast<Expr>(Op); } 15930835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis const Expr *getSubExpr() const { return cast<Expr>(Op); } 1594087fd536809ebe754d91c641a98917e02dd7452dDouglas Gregor void setSubExpr(Expr *E) { Op = E; } 1595087fd536809ebe754d91c641a98917e02dd7452dDouglas Gregor 15961eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 15979d293dfc0ad7c44ae0b5eb9517f1ed8c8d8b7ff7Douglas Gregor StmtClass SC = T->getStmtClass(); 15989d293dfc0ad7c44ae0b5eb9517f1ed8c8d8b7ff7Douglas Gregor if (SC >= CXXNamedCastExprClass && SC <= CXXFunctionalCastExprClass) 15999d293dfc0ad7c44ae0b5eb9517f1ed8c8d8b7ff7Douglas Gregor return true; 16009d293dfc0ad7c44ae0b5eb9517f1ed8c8d8b7ff7Douglas Gregor 16016eec8e883de118b431e3ead5b1e604a6ac68ff6bDouglas Gregor if (SC >= ImplicitCastExprClass && SC <= CStyleCastExprClass) 16020835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis return true; 16039d293dfc0ad7c44ae0b5eb9517f1ed8c8d8b7ff7Douglas Gregor 16049d293dfc0ad7c44ae0b5eb9517f1ed8c8d8b7ff7Douglas Gregor return false; 16050835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis } 16060835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis static bool classof(const CastExpr *) { return true; } 16071eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 16080835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis // Iterators 16090835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis virtual child_iterator child_begin(); 16100835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis virtual child_iterator child_end(); 16110835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis}; 16120835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis 161349badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// ImplicitCastExpr - Allows us to explicitly represent implicit type 161449badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// conversions, which have no direct representation in the original 161549badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// source code. For example: converting T[]->T*, void f()->void 161649badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// (*f)(), float->double, short->int, etc. 161749b4526992a8c8a6a290aa3efa9828154a24af8dSteve Naroff/// 1618bf3af056289893f58d37b05a2c80970708781d61Douglas Gregor/// In C, implicit casts always produce rvalues. However, in C++, an 1619bf3af056289893f58d37b05a2c80970708781d61Douglas Gregor/// implicit cast whose result is being bound to a reference will be 1620bf3af056289893f58d37b05a2c80970708781d61Douglas Gregor/// an lvalue. For example: 1621bf3af056289893f58d37b05a2c80970708781d61Douglas Gregor/// 1622bf3af056289893f58d37b05a2c80970708781d61Douglas Gregor/// @code 1623bf3af056289893f58d37b05a2c80970708781d61Douglas Gregor/// class Base { }; 1624bf3af056289893f58d37b05a2c80970708781d61Douglas Gregor/// class Derived : public Base { }; 16251eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// void f(Derived d) { 1626bf3af056289893f58d37b05a2c80970708781d61Douglas Gregor/// Base& b = d; // initializer is an ImplicitCastExpr to an lvalue of type Base 1627bf3af056289893f58d37b05a2c80970708781d61Douglas Gregor/// } 1628bf3af056289893f58d37b05a2c80970708781d61Douglas Gregor/// @endcode 16290835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidisclass ImplicitCastExpr : public CastExpr { 1630eb8f3063257a392f15aea48d42fb73ec51afc548Douglas Gregor /// LvalueCast - Whether this cast produces an lvalue. 1631eb8f3063257a392f15aea48d42fb73ec51afc548Douglas Gregor bool LvalueCast; 1632eb8f3063257a392f15aea48d42fb73ec51afc548Douglas Gregor 163349b4526992a8c8a6a290aa3efa9828154a24af8dSteve Naroffpublic: 1634c0a2fd8f092722c8f78b566ac4506a21437040e9Anders Carlsson ImplicitCastExpr(QualType ty, CastKind kind, Expr *op, bool Lvalue) : 1635c0a2fd8f092722c8f78b566ac4506a21437040e9Anders Carlsson CastExpr(ImplicitCastExprClass, ty, kind, op), LvalueCast(Lvalue) { } 163690045e8ebabf50d6f1b3a67081a621b20b5e5341Steve Naroff 1637087fd536809ebe754d91c641a98917e02dd7452dDouglas Gregor /// \brief Construct an empty implicit cast. 16381eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump explicit ImplicitCastExpr(EmptyShell Shell) 1639087fd536809ebe754d91c641a98917e02dd7452dDouglas Gregor : CastExpr(ImplicitCastExprClass, Shell) { } 1640087fd536809ebe754d91c641a98917e02dd7452dDouglas Gregor 1641087fd536809ebe754d91c641a98917e02dd7452dDouglas Gregor 16420835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis virtual SourceRange getSourceRange() const { 16430835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis return getSubExpr()->getSourceRange(); 16440835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis } 164590045e8ebabf50d6f1b3a67081a621b20b5e5341Steve Naroff 1646eb8f3063257a392f15aea48d42fb73ec51afc548Douglas Gregor /// isLvalueCast - Whether this cast produces an lvalue. 1647eb8f3063257a392f15aea48d42fb73ec51afc548Douglas Gregor bool isLvalueCast() const { return LvalueCast; } 1648eb8f3063257a392f15aea48d42fb73ec51afc548Douglas Gregor 1649eb8f3063257a392f15aea48d42fb73ec51afc548Douglas Gregor /// setLvalueCast - Set whether this cast produces an lvalue. 1650eb8f3063257a392f15aea48d42fb73ec51afc548Douglas Gregor void setLvalueCast(bool Lvalue) { LvalueCast = Lvalue; } 1651eb8f3063257a392f15aea48d42fb73ec51afc548Douglas Gregor 16521eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 16531eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == ImplicitCastExprClass; 165449b4526992a8c8a6a290aa3efa9828154a24af8dSteve Naroff } 165549b4526992a8c8a6a290aa3efa9828154a24af8dSteve Naroff static bool classof(const ImplicitCastExpr *) { return true; } 165649b4526992a8c8a6a290aa3efa9828154a24af8dSteve Naroff}; 165749b4526992a8c8a6a290aa3efa9828154a24af8dSteve Naroff 165849badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// ExplicitCastExpr - An explicit cast written in the source 16591eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// code. 166049badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// 166149badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// This class is effectively an abstract class, because it provides 166249badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// the basic representation of an explicitly-written cast without 166349badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// specifying which kind of cast (C cast, functional cast, static 166449badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// cast, etc.) was written; specific derived classes represent the 166549badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// particular style of cast and its location information. 16665f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 166749badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// Unlike implicit casts, explicit cast nodes have two different 166849badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// types: the type that was written into the source code, and the 166949badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// actual type of the expression as determined by semantic 167049badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// analysis. These types may differ slightly. For example, in C++ one 167149badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// can cast to a reference type, which indicates that the resulting 167249badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// expression will be an lvalue. The reference type, however, will 167349badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// not be used as the type of the expression. 16740835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidisclass ExplicitCastExpr : public CastExpr { 167549badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor /// TypeAsWritten - The type that this expression is casting to, as 167649badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor /// written in the source code. 167749badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor QualType TypeAsWritten; 167849badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor 167949badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregorprotected: 1680c0a2fd8f092722c8f78b566ac4506a21437040e9Anders Carlsson ExplicitCastExpr(StmtClass SC, QualType exprTy, CastKind kind, 16811eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump Expr *op, QualType writtenTy) 1682c0a2fd8f092722c8f78b566ac4506a21437040e9Anders Carlsson : CastExpr(SC, exprTy, kind, op), TypeAsWritten(writtenTy) {} 168349badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor 1684db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor /// \brief Construct an empty explicit cast. 16851eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump ExplicitCastExpr(StmtClass SC, EmptyShell Shell) 1686db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor : CastExpr(SC, Shell) { } 1687db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor 168849badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregorpublic: 168949badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor /// getTypeAsWritten - Returns the type that this expression is 169049badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor /// casting to, as written in the source code. 169149badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor QualType getTypeAsWritten() const { return TypeAsWritten; } 1692db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor void setTypeAsWritten(QualType T) { TypeAsWritten = T; } 169349badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor 16941eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 16959d293dfc0ad7c44ae0b5eb9517f1ed8c8d8b7ff7Douglas Gregor StmtClass SC = T->getStmtClass(); 16966eec8e883de118b431e3ead5b1e604a6ac68ff6bDouglas Gregor if (SC >= ExplicitCastExprClass && SC <= CStyleCastExprClass) 16979d293dfc0ad7c44ae0b5eb9517f1ed8c8d8b7ff7Douglas Gregor return true; 16989d293dfc0ad7c44ae0b5eb9517f1ed8c8d8b7ff7Douglas Gregor if (SC >= CXXNamedCastExprClass && SC <= CXXFunctionalCastExprClass) 169949badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor return true; 17009d293dfc0ad7c44ae0b5eb9517f1ed8c8d8b7ff7Douglas Gregor 17019d293dfc0ad7c44ae0b5eb9517f1ed8c8d8b7ff7Douglas Gregor return false; 170249badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor } 170349badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor static bool classof(const ExplicitCastExpr *) { return true; } 170449badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor}; 170549badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor 17066eec8e883de118b431e3ead5b1e604a6ac68ff6bDouglas Gregor/// CStyleCastExpr - An explicit cast in C (C99 6.5.4) or a C-style 170749badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// cast in C++ (C++ [expr.cast]), which uses the syntax 170849badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// (Type)expr. For example: @c (int)f. 17096eec8e883de118b431e3ead5b1e604a6ac68ff6bDouglas Gregorclass CStyleCastExpr : public ExplicitCastExpr { 1710b2f9e516327310d95840d442416084508f80c183Steve Naroff SourceLocation LPLoc; // the location of the left paren 1711b2f9e516327310d95840d442416084508f80c183Steve Naroff SourceLocation RPLoc; // the location of the right paren 17125f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 17131eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump CStyleCastExpr(QualType exprTy, CastKind kind, Expr *op, QualType writtenTy, 17141eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump SourceLocation l, SourceLocation r) : 17151eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump ExplicitCastExpr(CStyleCastExprClass, exprTy, kind, op, writtenTy), 1716b2f9e516327310d95840d442416084508f80c183Steve Naroff LPLoc(l), RPLoc(r) {} 171749b4526992a8c8a6a290aa3efa9828154a24af8dSteve Naroff 1718db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor /// \brief Construct an empty C-style explicit cast. 17191eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump explicit CStyleCastExpr(EmptyShell Shell) 1720db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor : ExplicitCastExpr(CStyleCastExprClass, Shell) { } 1721db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor 1722b2f9e516327310d95840d442416084508f80c183Steve Naroff SourceLocation getLParenLoc() const { return LPLoc; } 1723db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor void setLParenLoc(SourceLocation L) { LPLoc = L; } 1724db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor 1725b2f9e516327310d95840d442416084508f80c183Steve Naroff SourceLocation getRParenLoc() const { return RPLoc; } 1726db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor void setRParenLoc(SourceLocation L) { RPLoc = L; } 1727db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor 17285f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer virtual SourceRange getSourceRange() const { 1729b2f9e516327310d95840d442416084508f80c183Steve Naroff return SourceRange(LPLoc, getSubExpr()->getSourceRange().getEnd()); 17305f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 17311eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 17321eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == CStyleCastExprClass; 17335f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 17346eec8e883de118b431e3ead5b1e604a6ac68ff6bDouglas Gregor static bool classof(const CStyleCastExpr *) { return true; } 17355f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 17365f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 17373fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// \brief A builtin binary operation expression such as "x + y" or "x <= y". 17383fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// 17393fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// This expression node kind describes a builtin binary operation, 17403fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// such as "x + y" for integer values "x" and "y". The operands will 17413fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// already have been converted to appropriate types (e.g., by 17423fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// performing promotions or conversions). 17433fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// 17443fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// In C++, where operators may be overloaded, a different kind of 17453fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// expression node (CXXOperatorCallExpr) is used to express the 17463fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// invocation of an overloaded operator with operator syntax. Within 17473fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// a C++ template, whether BinaryOperator or CXXOperatorCallExpr is 17483fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// used to store an expression "x + y" depends on the subexpressions 17493fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// for x and y. If neither x or y is type-dependent, and the "+" 17503fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// operator resolves to a built-in operation, BinaryOperator will be 17513fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// used to express the computation (x and y may still be 17523fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// value-dependent). If either x or y is type-dependent, or if the 17533fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// "+" resolves to an overloaded operator, CXXOperatorCallExpr will 17543fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// be used to express the computation. 17555f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass BinaryOperator : public Expr { 17565f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 17575f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer enum Opcode { 17585f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Operators listed in order of precedence. 175903d6fb99224c36935c9af9f4785cb33453c99b2bChris Lattner // Note that additions to this should also update the StmtVisitor class. 1760224605064a4ef87d1c3d35ad1cb363f8b534012bSebastian Redl PtrMemD, PtrMemI, // [C++ 5.5] Pointer-to-member operators. 17615f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Mul, Div, Rem, // [C99 6.5.5] Multiplicative operators. 17625f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Add, Sub, // [C99 6.5.6] Additive operators. 17635f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Shl, Shr, // [C99 6.5.7] Bitwise shift operators. 17645f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer LT, GT, LE, GE, // [C99 6.5.8] Relational operators. 17655f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer EQ, NE, // [C99 6.5.9] Equality operators. 17665f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer And, // [C99 6.5.10] Bitwise AND operator. 17675f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Xor, // [C99 6.5.11] Bitwise XOR operator. 17685f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Or, // [C99 6.5.12] Bitwise OR operator. 17695f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer LAnd, // [C99 6.5.13] Logical AND operator. 17705f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer LOr, // [C99 6.5.14] Logical OR operator. 17715f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Assign, MulAssign,// [C99 6.5.16] Assignment operators. 17725f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer DivAssign, RemAssign, 17735f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer AddAssign, SubAssign, 17745f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ShlAssign, ShrAssign, 17755f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer AndAssign, XorAssign, 17765f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer OrAssign, 17775f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Comma // [C99 6.5.17] Comma operator. 17785f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer }; 177917d1b2ac9f8371a0a2e79d4f8e0008658164f080Chris Lattnerprivate: 178017d1b2ac9f8371a0a2e79d4f8e0008658164f080Chris Lattner enum { LHS, RHS, END_EXPR }; 17815549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Stmt* SubExprs[END_EXPR]; 178217d1b2ac9f8371a0a2e79d4f8e0008658164f080Chris Lattner Opcode Opc; 178317d1b2ac9f8371a0a2e79d4f8e0008658164f080Chris Lattner SourceLocation OpLoc; 17841eb4433ac451dc16f4133a88af2d002ac26c58efMike Stumppublic: 17851eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 178617d1b2ac9f8371a0a2e79d4f8e0008658164f080Chris Lattner BinaryOperator(Expr *lhs, Expr *rhs, Opcode opc, QualType ResTy, 178717d1b2ac9f8371a0a2e79d4f8e0008658164f080Chris Lattner SourceLocation opLoc) 1788898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor : Expr(BinaryOperatorClass, ResTy, 1789898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor lhs->isTypeDependent() || rhs->isTypeDependent(), 17901eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump lhs->isValueDependent() || rhs->isValueDependent()), 1791898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor Opc(opc), OpLoc(opLoc) { 17921237c673c07f9d827129ba02720108816abde562Ted Kremenek SubExprs[LHS] = lhs; 17931237c673c07f9d827129ba02720108816abde562Ted Kremenek SubExprs[RHS] = rhs; 17941eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump assert(!isCompoundAssignmentOp() && 17955f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer "Use ArithAssignBinaryOperator for compound assignments"); 17965f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 17975f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1798db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor /// \brief Construct an empty binary operator. 17991eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump explicit BinaryOperator(EmptyShell Empty) 1800db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor : Expr(BinaryOperatorClass, Empty), Opc(Comma) { } 1801db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor 180217d1b2ac9f8371a0a2e79d4f8e0008658164f080Chris Lattner SourceLocation getOperatorLoc() const { return OpLoc; } 1803db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor void setOperatorLoc(SourceLocation L) { OpLoc = L; } 1804db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor 18055f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Opcode getOpcode() const { return Opc; } 1806db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor void setOpcode(Opcode O) { Opc = O; } 1807db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor 18085549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getLHS() const { return cast<Expr>(SubExprs[LHS]); } 1809db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor void setLHS(Expr *E) { SubExprs[LHS] = E; } 18105549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getRHS() const { return cast<Expr>(SubExprs[RHS]); } 1811db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor void setRHS(Expr *E) { SubExprs[RHS] = E; } 1812db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor 18135f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer virtual SourceRange getSourceRange() const { 18145f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return SourceRange(getLHS()->getLocStart(), getRHS()->getLocEnd()); 18155f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 18161eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 18175f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// getOpcodeStr - Turn an Opcode enum value into the punctuation char it 18185f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// corresponds to, e.g. "<<=". 18195f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static const char *getOpcodeStr(Opcode Op); 18205f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1821063daf6e196c51f162e0485478355d8e280eef5cDouglas Gregor /// \brief Retrieve the binary opcode that corresponds to the given 1822063daf6e196c51f162e0485478355d8e280eef5cDouglas Gregor /// overloaded operator. 1823063daf6e196c51f162e0485478355d8e280eef5cDouglas Gregor static Opcode getOverloadedOpcode(OverloadedOperatorKind OO); 1824063daf6e196c51f162e0485478355d8e280eef5cDouglas Gregor 1825063daf6e196c51f162e0485478355d8e280eef5cDouglas Gregor /// \brief Retrieve the overloaded operator kind that corresponds to 1826063daf6e196c51f162e0485478355d8e280eef5cDouglas Gregor /// the given binary opcode. 1827063daf6e196c51f162e0485478355d8e280eef5cDouglas Gregor static OverloadedOperatorKind getOverloadedOperator(Opcode Opc); 1828063daf6e196c51f162e0485478355d8e280eef5cDouglas Gregor 18295f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// predicates to categorize the respective opcodes. 18305f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool isMultiplicativeOp() const { return Opc >= Mul && Opc <= Rem; } 18315f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool isAdditiveOp() const { return Opc == Add || Opc == Sub; } 183240a5ef90ac8d3f29bc8fe4ff80e00eaf3ef5b79fTed Kremenek static bool isShiftOp(Opcode Opc) { return Opc == Shl || Opc == Shr; } 183340a5ef90ac8d3f29bc8fe4ff80e00eaf3ef5b79fTed Kremenek bool isShiftOp() const { return isShiftOp(Opc); } 1834aee3c9375f97a49edef2a36f15df6abd9748e2a1Sebastian Redl 1835aee3c9375f97a49edef2a36f15df6abd9748e2a1Sebastian Redl static bool isBitwiseOp(Opcode Opc) { return Opc >= And && Opc <= Or; } 1836aee3c9375f97a49edef2a36f15df6abd9748e2a1Sebastian Redl bool isBitwiseOp() const { return isBitwiseOp(Opc); } 1837f2da7a06f6b98c3886d9b871ab839f5085b1c238Ted Kremenek 1838f2da7a06f6b98c3886d9b871ab839f5085b1c238Ted Kremenek static bool isRelationalOp(Opcode Opc) { return Opc >= LT && Opc <= GE; } 1839f2da7a06f6b98c3886d9b871ab839f5085b1c238Ted Kremenek bool isRelationalOp() const { return isRelationalOp(Opc); } 1840f2da7a06f6b98c3886d9b871ab839f5085b1c238Ted Kremenek 18411eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool isEqualityOp(Opcode Opc) { return Opc == EQ || Opc == NE; } 1842f2da7a06f6b98c3886d9b871ab839f5085b1c238Ted Kremenek bool isEqualityOp() const { return isEqualityOp(Opc); } 18431eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1844aee3c9375f97a49edef2a36f15df6abd9748e2a1Sebastian Redl static bool isComparisonOp(Opcode Opc) { return Opc >= LT && Opc <= NE; } 1845aee3c9375f97a49edef2a36f15df6abd9748e2a1Sebastian Redl bool isComparisonOp() const { return isComparisonOp(Opc); } 1846aee3c9375f97a49edef2a36f15df6abd9748e2a1Sebastian Redl 1847f2da7a06f6b98c3886d9b871ab839f5085b1c238Ted Kremenek static bool isLogicalOp(Opcode Opc) { return Opc == LAnd || Opc == LOr; } 1848f2da7a06f6b98c3886d9b871ab839f5085b1c238Ted Kremenek bool isLogicalOp() const { return isLogicalOp(Opc); } 1849f2da7a06f6b98c3886d9b871ab839f5085b1c238Ted Kremenek 18505f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool isAssignmentOp() const { return Opc >= Assign && Opc <= OrAssign; } 18515f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool isCompoundAssignmentOp() const { return Opc > Assign && Opc <= OrAssign;} 18525f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool isShiftAssignOp() const { return Opc == ShlAssign || Opc == ShrAssign; } 18531eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 18541eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *S) { 1855eb14fe839ec24c2ca14e5f094be147a34e3d3339Chris Lattner return S->getStmtClass() == BinaryOperatorClass || 18561eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump S->getStmtClass() == CompoundAssignOperatorClass; 18575f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 18585f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const BinaryOperator *) { return true; } 18591237c673c07f9d827129ba02720108816abde562Ted Kremenek 18601237c673c07f9d827129ba02720108816abde562Ted Kremenek // Iterators 18611237c673c07f9d827129ba02720108816abde562Ted Kremenek virtual child_iterator child_begin(); 18621237c673c07f9d827129ba02720108816abde562Ted Kremenek virtual child_iterator child_end(); 18631237c673c07f9d827129ba02720108816abde562Ted Kremenek 18645f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerprotected: 186517d1b2ac9f8371a0a2e79d4f8e0008658164f080Chris Lattner BinaryOperator(Expr *lhs, Expr *rhs, Opcode opc, QualType ResTy, 186617d1b2ac9f8371a0a2e79d4f8e0008658164f080Chris Lattner SourceLocation oploc, bool dead) 186717d1b2ac9f8371a0a2e79d4f8e0008658164f080Chris Lattner : Expr(CompoundAssignOperatorClass, ResTy), Opc(opc), OpLoc(oploc) { 18681237c673c07f9d827129ba02720108816abde562Ted Kremenek SubExprs[LHS] = lhs; 18691237c673c07f9d827129ba02720108816abde562Ted Kremenek SubExprs[RHS] = rhs; 18705f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 1871ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor 18721eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump BinaryOperator(StmtClass SC, EmptyShell Empty) 1873ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor : Expr(SC, Empty), Opc(MulAssign) { } 18745f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 18755f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 18765f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// CompoundAssignOperator - For compound assignments (e.g. +=), we keep 18775f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// track of the type the operation is performed in. Due to the semantics of 18785f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// these operators, the operands are promoted, the aritmetic performed, an 18795f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// implicit conversion back to the result type done, then the assignment takes 18805f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// place. This captures the intermediate type which the computation is done 18815f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// in. 18825f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass CompoundAssignOperator : public BinaryOperator { 1883ab3a852ae713189444dcbf75e70accf1e8c2b7f2Eli Friedman QualType ComputationLHSType; 1884ab3a852ae713189444dcbf75e70accf1e8c2b7f2Eli Friedman QualType ComputationResultType; 18855f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 18865f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer CompoundAssignOperator(Expr *lhs, Expr *rhs, Opcode opc, 1887ab3a852ae713189444dcbf75e70accf1e8c2b7f2Eli Friedman QualType ResType, QualType CompLHSType, 1888ab3a852ae713189444dcbf75e70accf1e8c2b7f2Eli Friedman QualType CompResultType, 188917d1b2ac9f8371a0a2e79d4f8e0008658164f080Chris Lattner SourceLocation OpLoc) 189017d1b2ac9f8371a0a2e79d4f8e0008658164f080Chris Lattner : BinaryOperator(lhs, rhs, opc, ResType, OpLoc, true), 1891ab3a852ae713189444dcbf75e70accf1e8c2b7f2Eli Friedman ComputationLHSType(CompLHSType), 1892ab3a852ae713189444dcbf75e70accf1e8c2b7f2Eli Friedman ComputationResultType(CompResultType) { 18931eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump assert(isCompoundAssignmentOp() && 18945f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer "Only should be used for compound assignments"); 18955f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 18965f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1897ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor /// \brief Build an empty compound assignment operator expression. 1898ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor explicit CompoundAssignOperator(EmptyShell Empty) 1899ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor : BinaryOperator(CompoundAssignOperatorClass, Empty) { } 1900ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor 1901ab3a852ae713189444dcbf75e70accf1e8c2b7f2Eli Friedman // The two computation types are the type the LHS is converted 1902ab3a852ae713189444dcbf75e70accf1e8c2b7f2Eli Friedman // to for the computation and the type of the result; the two are 1903ab3a852ae713189444dcbf75e70accf1e8c2b7f2Eli Friedman // distinct in a few cases (specifically, int+=ptr and ptr-=ptr). 1904ab3a852ae713189444dcbf75e70accf1e8c2b7f2Eli Friedman QualType getComputationLHSType() const { return ComputationLHSType; } 1905ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor void setComputationLHSType(QualType T) { ComputationLHSType = T; } 1906ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor 1907ab3a852ae713189444dcbf75e70accf1e8c2b7f2Eli Friedman QualType getComputationResultType() const { return ComputationResultType; } 1908ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor void setComputationResultType(QualType T) { ComputationResultType = T; } 1909ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor 19105f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const CompoundAssignOperator *) { return true; } 19111eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *S) { 19121eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return S->getStmtClass() == CompoundAssignOperatorClass; 19135f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 19145f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 19155f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 19165f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// ConditionalOperator - The ?: operator. Note that LHS may be null when the 19175f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// GNU "missing LHS" extension is in use. 19185f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 19195f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass ConditionalOperator : public Expr { 19201237c673c07f9d827129ba02720108816abde562Ted Kremenek enum { COND, LHS, RHS, END_EXPR }; 19215549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Stmt* SubExprs[END_EXPR]; // Left/Middle/Right hand sides. 192247e1f7c68bf375cac470fdb2b599ddbb395aeb52Douglas Gregor SourceLocation QuestionLoc, ColonLoc; 19235f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 192447e1f7c68bf375cac470fdb2b599ddbb395aeb52Douglas Gregor ConditionalOperator(Expr *cond, SourceLocation QLoc, Expr *lhs, 192547e1f7c68bf375cac470fdb2b599ddbb395aeb52Douglas Gregor SourceLocation CLoc, Expr *rhs, QualType t) 1926898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor : Expr(ConditionalOperatorClass, t, 1927898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // FIXME: the type of the conditional operator doesn't 1928898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // depend on the type of the conditional, but the standard 1929898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // seems to imply that it could. File a bug! 1930898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor ((lhs && lhs->isTypeDependent()) || (rhs && rhs->isTypeDependent())), 19311eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump (cond->isValueDependent() || 1932898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor (lhs && lhs->isValueDependent()) || 193347e1f7c68bf375cac470fdb2b599ddbb395aeb52Douglas Gregor (rhs && rhs->isValueDependent()))), 193447e1f7c68bf375cac470fdb2b599ddbb395aeb52Douglas Gregor QuestionLoc(QLoc), 193547e1f7c68bf375cac470fdb2b599ddbb395aeb52Douglas Gregor ColonLoc(CLoc) { 19361237c673c07f9d827129ba02720108816abde562Ted Kremenek SubExprs[COND] = cond; 19371237c673c07f9d827129ba02720108816abde562Ted Kremenek SubExprs[LHS] = lhs; 19381237c673c07f9d827129ba02720108816abde562Ted Kremenek SubExprs[RHS] = rhs; 19391237c673c07f9d827129ba02720108816abde562Ted Kremenek } 19405f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1941ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor /// \brief Build an empty conditional operator. 1942ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor explicit ConditionalOperator(EmptyShell Empty) 1943ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor : Expr(ConditionalOperatorClass, Empty) { } 1944ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor 1945395a2abf0028968d85958610e393e067885dc14fTed Kremenek // getCond - Return the expression representing the condition for 1946395a2abf0028968d85958610e393e067885dc14fTed Kremenek // the ?: operator. 19475549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getCond() const { return cast<Expr>(SubExprs[COND]); } 1948ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor void setCond(Expr *E) { SubExprs[COND] = E; } 1949395a2abf0028968d85958610e393e067885dc14fTed Kremenek 1950395a2abf0028968d85958610e393e067885dc14fTed Kremenek // getTrueExpr - Return the subexpression representing the value of the ?: 1951395a2abf0028968d85958610e393e067885dc14fTed Kremenek // expression if the condition evaluates to true. In most cases this value 1952395a2abf0028968d85958610e393e067885dc14fTed Kremenek // will be the same as getLHS() except a GCC extension allows the left 1953395a2abf0028968d85958610e393e067885dc14fTed Kremenek // subexpression to be omitted, and instead of the condition be returned. 1954395a2abf0028968d85958610e393e067885dc14fTed Kremenek // e.g: x ?: y is shorthand for x ? x : y, except that the expression "x" 19551eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // is only evaluated once. 1956395a2abf0028968d85958610e393e067885dc14fTed Kremenek Expr *getTrueExpr() const { 19575549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek return cast<Expr>(SubExprs[LHS] ? SubExprs[LHS] : SubExprs[COND]); 1958395a2abf0028968d85958610e393e067885dc14fTed Kremenek } 19591eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1960395a2abf0028968d85958610e393e067885dc14fTed Kremenek // getTrueExpr - Return the subexpression representing the value of the ?: 1961395a2abf0028968d85958610e393e067885dc14fTed Kremenek // expression if the condition evaluates to false. This is the same as getRHS. 19625549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getFalseExpr() const { return cast<Expr>(SubExprs[RHS]); } 19631eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 19645549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getLHS() const { return cast_or_null<Expr>(SubExprs[LHS]); } 1965ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor void setLHS(Expr *E) { SubExprs[LHS] = E; } 1966ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor 19675549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getRHS() const { return cast<Expr>(SubExprs[RHS]); } 1968ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor void setRHS(Expr *E) { SubExprs[RHS] = E; } 19695f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 197047e1f7c68bf375cac470fdb2b599ddbb395aeb52Douglas Gregor SourceLocation getQuestionLoc() const { return QuestionLoc; } 197147e1f7c68bf375cac470fdb2b599ddbb395aeb52Douglas Gregor void setQuestionLoc(SourceLocation L) { QuestionLoc = L; } 197247e1f7c68bf375cac470fdb2b599ddbb395aeb52Douglas Gregor 197347e1f7c68bf375cac470fdb2b599ddbb395aeb52Douglas Gregor SourceLocation getColonLoc() const { return ColonLoc; } 197447e1f7c68bf375cac470fdb2b599ddbb395aeb52Douglas Gregor void setColonLoc(SourceLocation L) { ColonLoc = L; } 197547e1f7c68bf375cac470fdb2b599ddbb395aeb52Douglas Gregor 19765f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer virtual SourceRange getSourceRange() const { 19775f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return SourceRange(getCond()->getLocStart(), getRHS()->getLocEnd()); 19785f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 19791eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 19801eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == ConditionalOperatorClass; 19815f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 19825f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const ConditionalOperator *) { return true; } 19831eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 19841237c673c07f9d827129ba02720108816abde562Ted Kremenek // Iterators 19851237c673c07f9d827129ba02720108816abde562Ted Kremenek virtual child_iterator child_begin(); 19861237c673c07f9d827129ba02720108816abde562Ted Kremenek virtual child_iterator child_end(); 19875f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 19885f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 19896481a57fefbf1a313ff439028470fe4c27a3b7a3Chris Lattner/// AddrLabelExpr - The GNU address of label extension, representing &&label. 19906481a57fefbf1a313ff439028470fe4c27a3b7a3Chris Lattnerclass AddrLabelExpr : public Expr { 19915f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation AmpAmpLoc, LabelLoc; 19925f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer LabelStmt *Label; 19935f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 19946481a57fefbf1a313ff439028470fe4c27a3b7a3Chris Lattner AddrLabelExpr(SourceLocation AALoc, SourceLocation LLoc, LabelStmt *L, 19956481a57fefbf1a313ff439028470fe4c27a3b7a3Chris Lattner QualType t) 19966481a57fefbf1a313ff439028470fe4c27a3b7a3Chris Lattner : Expr(AddrLabelExprClass, t), AmpAmpLoc(AALoc), LabelLoc(LLoc), Label(L) {} 19971eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 19987d5c2f241c74e5f8d9ec492e8f9f268e5e9ae41fDouglas Gregor /// \brief Build an empty address of a label expression. 19991eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump explicit AddrLabelExpr(EmptyShell Empty) 20007d5c2f241c74e5f8d9ec492e8f9f268e5e9ae41fDouglas Gregor : Expr(AddrLabelExprClass, Empty) { } 20017d5c2f241c74e5f8d9ec492e8f9f268e5e9ae41fDouglas Gregor 20027d5c2f241c74e5f8d9ec492e8f9f268e5e9ae41fDouglas Gregor SourceLocation getAmpAmpLoc() const { return AmpAmpLoc; } 20037d5c2f241c74e5f8d9ec492e8f9f268e5e9ae41fDouglas Gregor void setAmpAmpLoc(SourceLocation L) { AmpAmpLoc = L; } 20047d5c2f241c74e5f8d9ec492e8f9f268e5e9ae41fDouglas Gregor SourceLocation getLabelLoc() const { return LabelLoc; } 20057d5c2f241c74e5f8d9ec492e8f9f268e5e9ae41fDouglas Gregor void setLabelLoc(SourceLocation L) { LabelLoc = L; } 20067d5c2f241c74e5f8d9ec492e8f9f268e5e9ae41fDouglas Gregor 20075f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer virtual SourceRange getSourceRange() const { 20085f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return SourceRange(AmpAmpLoc, LabelLoc); 20095f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 20101eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 20115f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer LabelStmt *getLabel() const { return Label; } 20127d5c2f241c74e5f8d9ec492e8f9f268e5e9ae41fDouglas Gregor void setLabel(LabelStmt *S) { Label = S; } 20137d5c2f241c74e5f8d9ec492e8f9f268e5e9ae41fDouglas Gregor 20145f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const Stmt *T) { 20151eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == AddrLabelExprClass; 20165f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 20176481a57fefbf1a313ff439028470fe4c27a3b7a3Chris Lattner static bool classof(const AddrLabelExpr *) { return true; } 20181eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 20191237c673c07f9d827129ba02720108816abde562Ted Kremenek // Iterators 20201237c673c07f9d827129ba02720108816abde562Ted Kremenek virtual child_iterator child_begin(); 20211237c673c07f9d827129ba02720108816abde562Ted Kremenek virtual child_iterator child_end(); 20225f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 2023ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner 2024ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner/// StmtExpr - This is the GNU Statement Expression extension: ({int X=4; X;}). 2025ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner/// The StmtExpr contains a single CompoundStmt node, which it evaluates and 2026ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner/// takes the value of the last subexpression. 2027ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattnerclass StmtExpr : public Expr { 20285549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Stmt *SubStmt; 2029ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner SourceLocation LParenLoc, RParenLoc; 2030ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattnerpublic: 2031d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroff StmtExpr(CompoundStmt *substmt, QualType T, 2032d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroff SourceLocation lp, SourceLocation rp) : 2033d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroff Expr(StmtExprClass, T), SubStmt(substmt), LParenLoc(lp), RParenLoc(rp) { } 20341eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 20356a2dd55b0b3ae376d449a4b07bbb6b2d30b26330Douglas Gregor /// \brief Build an empty statement expression. 20366a2dd55b0b3ae376d449a4b07bbb6b2d30b26330Douglas Gregor explicit StmtExpr(EmptyShell Empty) : Expr(StmtExprClass, Empty) { } 20376a2dd55b0b3ae376d449a4b07bbb6b2d30b26330Douglas Gregor 20385549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek CompoundStmt *getSubStmt() { return cast<CompoundStmt>(SubStmt); } 20395549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek const CompoundStmt *getSubStmt() const { return cast<CompoundStmt>(SubStmt); } 20406a2dd55b0b3ae376d449a4b07bbb6b2d30b26330Douglas Gregor void setSubStmt(CompoundStmt *S) { SubStmt = S; } 20416a2dd55b0b3ae376d449a4b07bbb6b2d30b26330Douglas Gregor 2042ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner virtual SourceRange getSourceRange() const { 2043ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner return SourceRange(LParenLoc, RParenLoc); 2044ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner } 20451eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2046026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner SourceLocation getLParenLoc() const { return LParenLoc; } 20476a2dd55b0b3ae376d449a4b07bbb6b2d30b26330Douglas Gregor void setLParenLoc(SourceLocation L) { LParenLoc = L; } 2048026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner SourceLocation getRParenLoc() const { return RParenLoc; } 20496a2dd55b0b3ae376d449a4b07bbb6b2d30b26330Douglas Gregor void setRParenLoc(SourceLocation L) { RParenLoc = L; } 20501eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2051ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner static bool classof(const Stmt *T) { 20521eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == StmtExprClass; 2053ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner } 2054ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner static bool classof(const StmtExpr *) { return true; } 20551eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 20561237c673c07f9d827129ba02720108816abde562Ted Kremenek // Iterators 20571237c673c07f9d827129ba02720108816abde562Ted Kremenek virtual child_iterator child_begin(); 20581237c673c07f9d827129ba02720108816abde562Ted Kremenek virtual child_iterator child_end(); 2059ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner}; 2060ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner 2061dc241b42c7588f99027b035a09b71557a6db219eDouglas Gregor/// TypesCompatibleExpr - GNU builtin-in function __builtin_types_compatible_p. 2062d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroff/// This AST node represents a function that returns 1 if two *types* (not 2063d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroff/// expressions) are compatible. The result of this built-in function can be 2064d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroff/// used in integer constant expressions. 2065d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroffclass TypesCompatibleExpr : public Expr { 2066d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroff QualType Type1; 2067d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroff QualType Type2; 2068363bcff47df2fda3cfcfcd994b7888157df58c43Steve Naroff SourceLocation BuiltinLoc, RParenLoc; 2069d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroffpublic: 20701eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump TypesCompatibleExpr(QualType ReturnType, SourceLocation BLoc, 20711eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump QualType t1, QualType t2, SourceLocation RP) : 2072d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroff Expr(TypesCompatibleExprClass, ReturnType), Type1(t1), Type2(t2), 2073363bcff47df2fda3cfcfcd994b7888157df58c43Steve Naroff BuiltinLoc(BLoc), RParenLoc(RP) {} 2074d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroff 207544cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor /// \brief Build an empty __builtin_type_compatible_p expression. 207644cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor explicit TypesCompatibleExpr(EmptyShell Empty) 207744cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor : Expr(TypesCompatibleExprClass, Empty) { } 207844cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor 20797f28fe8e00ec4fac17977374d8da491f873a3b05Steve Naroff QualType getArgType1() const { return Type1; } 208044cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor void setArgType1(QualType T) { Type1 = T; } 20817f28fe8e00ec4fac17977374d8da491f873a3b05Steve Naroff QualType getArgType2() const { return Type2; } 208244cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor void setArgType2(QualType T) { Type2 = T; } 20831eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 208444cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor SourceLocation getBuiltinLoc() const { return BuiltinLoc; } 208544cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor void setBuiltinLoc(SourceLocation L) { BuiltinLoc = L; } 20861eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 208744cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor SourceLocation getRParenLoc() const { return RParenLoc; } 208844cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor void setRParenLoc(SourceLocation L) { RParenLoc = L; } 20891eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2090d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroff virtual SourceRange getSourceRange() const { 2091363bcff47df2fda3cfcfcd994b7888157df58c43Steve Naroff return SourceRange(BuiltinLoc, RParenLoc); 2092d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroff } 2093d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroff static bool classof(const Stmt *T) { 20941eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == TypesCompatibleExprClass; 2095d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroff } 2096d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroff static bool classof(const TypesCompatibleExpr *) { return true; } 20971eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 20981237c673c07f9d827129ba02720108816abde562Ted Kremenek // Iterators 20991237c673c07f9d827129ba02720108816abde562Ted Kremenek virtual child_iterator child_begin(); 21001237c673c07f9d827129ba02720108816abde562Ted Kremenek virtual child_iterator child_end(); 2101d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroff}; 2102d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroff 2103d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman/// ShuffleVectorExpr - clang-specific builtin-in function 2104d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman/// __builtin_shufflevector. 2105d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman/// This AST node represents a operator that does a constant 2106d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman/// shuffle, similar to LLVM's shufflevector instruction. It takes 2107d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman/// two vectors and a variable number of constant indices, 2108d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman/// and returns the appropriately shuffled vector. 2109d38617c8a50f9729c254ab76cd359af797c6739bEli Friedmanclass ShuffleVectorExpr : public Expr { 2110d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman SourceLocation BuiltinLoc, RParenLoc; 2111d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman 2112d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman // SubExprs - the list of values passed to the __builtin_shufflevector 2113d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman // function. The first two are vectors, and the rest are constant 2114d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman // indices. The number of values in this list is always 2115d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman // 2+the number of indices in the vector type. 21165549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Stmt **SubExprs; 2117d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman unsigned NumExprs; 2118d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman 2119888376a2bbcfc2f047902249f8455918e2489ae1Nate Begemanprotected: 21201eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump virtual void DoDestroy(ASTContext &C); 2121888376a2bbcfc2f047902249f8455918e2489ae1Nate Begeman 2122d38617c8a50f9729c254ab76cd359af797c6739bEli Friedmanpublic: 2123a88dc3079bedf70a5cfc39791727e43a10383006Nate Begeman ShuffleVectorExpr(ASTContext &C, Expr **args, unsigned nexpr, 21241eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump QualType Type, SourceLocation BLoc, 21251eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump SourceLocation RP) : 2126d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman Expr(ShuffleVectorExprClass, Type), BuiltinLoc(BLoc), 2127f809e3bd0c3d063f22ba34981072dae306ca9272Ted Kremenek RParenLoc(RP), NumExprs(nexpr) { 21281eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2129a88dc3079bedf70a5cfc39791727e43a10383006Nate Begeman SubExprs = new (C) Stmt*[nexpr]; 2130d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman for (unsigned i = 0; i < nexpr; i++) 2131d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman SubExprs[i] = args[i]; 2132d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman } 213394cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor 213494cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor /// \brief Build an empty vector-shuffle expression. 21351eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump explicit ShuffleVectorExpr(EmptyShell Empty) 213694cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor : Expr(ShuffleVectorExprClass, Empty), SubExprs(0) { } 213794cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor 213894cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor SourceLocation getBuiltinLoc() const { return BuiltinLoc; } 213994cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor void setBuiltinLoc(SourceLocation L) { BuiltinLoc = L; } 21401eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 214194cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor SourceLocation getRParenLoc() const { return RParenLoc; } 214294cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor void setRParenLoc(SourceLocation L) { RParenLoc = L; } 214394cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor 2144d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman virtual SourceRange getSourceRange() const { 2145d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman return SourceRange(BuiltinLoc, RParenLoc); 2146d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman } 2147d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman static bool classof(const Stmt *T) { 21481eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == ShuffleVectorExprClass; 2149d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman } 2150d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman static bool classof(const ShuffleVectorExpr *) { return true; } 21511eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2152888376a2bbcfc2f047902249f8455918e2489ae1Nate Begeman ~ShuffleVectorExpr() {} 21531eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2154d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman /// getNumSubExprs - Return the size of the SubExprs array. This includes the 2155d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman /// constant expression, the actual arguments passed in, and the function 2156d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman /// pointers. 2157d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman unsigned getNumSubExprs() const { return NumExprs; } 21581eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2159d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman /// getExpr - Return the Expr at the specified index. 2160d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman Expr *getExpr(unsigned Index) { 2161d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman assert((Index < NumExprs) && "Arg access out of range!"); 21625549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek return cast<Expr>(SubExprs[Index]); 2163d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman } 2164d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman const Expr *getExpr(unsigned Index) const { 2165d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman assert((Index < NumExprs) && "Arg access out of range!"); 21665549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek return cast<Expr>(SubExprs[Index]); 2167d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman } 21681eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2169888376a2bbcfc2f047902249f8455918e2489ae1Nate Begeman void setExprs(ASTContext &C, Expr ** Exprs, unsigned NumExprs); 217094cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor 2171dde8c94873976632e3ada4d8d067e1e244184d51Eli Friedman unsigned getShuffleMaskIdx(ASTContext &Ctx, unsigned N) { 2172dde8c94873976632e3ada4d8d067e1e244184d51Eli Friedman assert((N < NumExprs - 2) && "Shuffle idx out of range!"); 21739a901bb63990574ff0bcc12ff851d7a71cff8ddbEli Friedman return getExpr(N+2)->EvaluateAsInt(Ctx).getZExtValue(); 2174d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman } 21751eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2176d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman // Iterators 2177d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman virtual child_iterator child_begin(); 2178d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman virtual child_iterator child_end(); 2179d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman}; 2180d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman 2181d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff/// ChooseExpr - GNU builtin-in function __builtin_choose_expr. 21821eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// This AST node is similar to the conditional operator (?:) in C, with 2183d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff/// the following exceptions: 21847976932a1c256d447316ffac58e9821417725e34Eli Friedman/// - the test expression must be a integer constant expression. 21857976932a1c256d447316ffac58e9821417725e34Eli Friedman/// - the expression returned acts like the chosen subexpression in every 21867976932a1c256d447316ffac58e9821417725e34Eli Friedman/// visible way: the type is the same as that of the chosen subexpression, 21877976932a1c256d447316ffac58e9821417725e34Eli Friedman/// and all predicates (whether it's an l-value, whether it's an integer 21887976932a1c256d447316ffac58e9821417725e34Eli Friedman/// constant expression, etc.) return the same result as for the chosen 21897976932a1c256d447316ffac58e9821417725e34Eli Friedman/// sub-expression. 2190d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroffclass ChooseExpr : public Expr { 21911237c673c07f9d827129ba02720108816abde562Ted Kremenek enum { COND, LHS, RHS, END_EXPR }; 21925549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Stmt* SubExprs[END_EXPR]; // Left/Middle/Right hand sides. 2193d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff SourceLocation BuiltinLoc, RParenLoc; 2194d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroffpublic: 2195d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff ChooseExpr(SourceLocation BLoc, Expr *cond, Expr *lhs, Expr *rhs, QualType t, 2196ce94049b69f75b44c18584fe79cd238978b6b0d5Douglas Gregor SourceLocation RP, bool TypeDependent, bool ValueDependent) 2197ce94049b69f75b44c18584fe79cd238978b6b0d5Douglas Gregor : Expr(ChooseExprClass, t, TypeDependent, ValueDependent), 21981237c673c07f9d827129ba02720108816abde562Ted Kremenek BuiltinLoc(BLoc), RParenLoc(RP) { 21991237c673c07f9d827129ba02720108816abde562Ted Kremenek SubExprs[COND] = cond; 22001237c673c07f9d827129ba02720108816abde562Ted Kremenek SubExprs[LHS] = lhs; 22011237c673c07f9d827129ba02720108816abde562Ted Kremenek SubExprs[RHS] = rhs; 22021eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump } 22037976932a1c256d447316ffac58e9821417725e34Eli Friedman 220444cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor /// \brief Build an empty __builtin_choose_expr. 220544cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor explicit ChooseExpr(EmptyShell Empty) : Expr(ChooseExprClass, Empty) { } 220644cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor 22077976932a1c256d447316ffac58e9821417725e34Eli Friedman /// isConditionTrue - Return whether the condition is true (i.e. not 22087976932a1c256d447316ffac58e9821417725e34Eli Friedman /// equal to zero). 220927437caadea35f84d550cd29f024fcf3ea240eecChris Lattner bool isConditionTrue(ASTContext &C) const; 22107976932a1c256d447316ffac58e9821417725e34Eli Friedman 22117976932a1c256d447316ffac58e9821417725e34Eli Friedman /// getChosenSubExpr - Return the subexpression chosen according to the 22127976932a1c256d447316ffac58e9821417725e34Eli Friedman /// condition. 22137976932a1c256d447316ffac58e9821417725e34Eli Friedman Expr *getChosenSubExpr(ASTContext &C) const { 22147976932a1c256d447316ffac58e9821417725e34Eli Friedman return isConditionTrue(C) ? getLHS() : getRHS(); 22157976932a1c256d447316ffac58e9821417725e34Eli Friedman } 22167976932a1c256d447316ffac58e9821417725e34Eli Friedman 22175549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getCond() const { return cast<Expr>(SubExprs[COND]); } 221844cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor void setCond(Expr *E) { SubExprs[COND] = E; } 22195549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getLHS() const { return cast<Expr>(SubExprs[LHS]); } 222044cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor void setLHS(Expr *E) { SubExprs[LHS] = E; } 22215549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getRHS() const { return cast<Expr>(SubExprs[RHS]); } 222244cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor void setRHS(Expr *E) { SubExprs[RHS] = E; } 222344cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor 222444cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor SourceLocation getBuiltinLoc() const { return BuiltinLoc; } 222544cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor void setBuiltinLoc(SourceLocation L) { BuiltinLoc = L; } 22261eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 222744cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor SourceLocation getRParenLoc() const { return RParenLoc; } 222844cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor void setRParenLoc(SourceLocation L) { RParenLoc = L; } 22291237c673c07f9d827129ba02720108816abde562Ted Kremenek 2230d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff virtual SourceRange getSourceRange() const { 2231d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff return SourceRange(BuiltinLoc, RParenLoc); 2232d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff } 2233d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff static bool classof(const Stmt *T) { 22341eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == ChooseExprClass; 2235d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff } 2236d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff static bool classof(const ChooseExpr *) { return true; } 22371eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 22381237c673c07f9d827129ba02720108816abde562Ted Kremenek // Iterators 22391237c673c07f9d827129ba02720108816abde562Ted Kremenek virtual child_iterator child_begin(); 22401237c673c07f9d827129ba02720108816abde562Ted Kremenek virtual child_iterator child_end(); 2241d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff}; 2242d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff 22432d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor/// GNUNullExpr - Implements the GNU __null extension, which is a name 22442d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor/// for a null pointer constant that has integral type (e.g., int or 22452d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor/// long) and is the same size and alignment as a pointer. The __null 22462d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor/// extension is typically only used by system headers, which define 22472d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor/// NULL as __null in C++ rather than using 0 (which is an integer 22482d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor/// that may not match the size of a pointer). 22492d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregorclass GNUNullExpr : public Expr { 22502d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor /// TokenLoc - The location of the __null keyword. 22512d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor SourceLocation TokenLoc; 22522d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor 22532d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregorpublic: 22541eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump GNUNullExpr(QualType Ty, SourceLocation Loc) 22552d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor : Expr(GNUNullExprClass, Ty), TokenLoc(Loc) { } 22562d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor 225744cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor /// \brief Build an empty GNU __null expression. 225844cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor explicit GNUNullExpr(EmptyShell Empty) : Expr(GNUNullExprClass, Empty) { } 225944cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor 22602d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor /// getTokenLocation - The location of the __null token. 22612d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor SourceLocation getTokenLocation() const { return TokenLoc; } 226244cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor void setTokenLocation(SourceLocation L) { TokenLoc = L; } 22632d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor 22642d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor virtual SourceRange getSourceRange() const { 22652d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor return SourceRange(TokenLoc); 22662d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor } 22672d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor static bool classof(const Stmt *T) { 22681eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == GNUNullExprClass; 22692d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor } 22702d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor static bool classof(const GNUNullExpr *) { return true; } 22711eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 22722d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor // Iterators 22732d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor virtual child_iterator child_begin(); 22742d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor virtual child_iterator child_end(); 22752d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor}; 22762d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor 22777c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson/// VAArgExpr, used for the builtin function __builtin_va_start. 22787c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlssonclass VAArgExpr : public Expr { 22795549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Stmt *Val; 22807c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson SourceLocation BuiltinLoc, RParenLoc; 22817c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlssonpublic: 22827c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson VAArgExpr(SourceLocation BLoc, Expr* e, QualType t, SourceLocation RPLoc) 22837c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson : Expr(VAArgExprClass, t), 22847c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson Val(e), 22857c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson BuiltinLoc(BLoc), 22867c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson RParenLoc(RPLoc) { } 22871eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2288d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor /// \brief Create an empty __builtin_va_start expression. 2289d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor explicit VAArgExpr(EmptyShell Empty) : Expr(VAArgExprClass, Empty) { } 2290d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor 22915549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek const Expr *getSubExpr() const { return cast<Expr>(Val); } 22925549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getSubExpr() { return cast<Expr>(Val); } 2293d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor void setSubExpr(Expr *E) { Val = E; } 2294d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor 2295d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor SourceLocation getBuiltinLoc() const { return BuiltinLoc; } 2296d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor void setBuiltinLoc(SourceLocation L) { BuiltinLoc = L; } 22971eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2298d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor SourceLocation getRParenLoc() const { return RParenLoc; } 2299d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor void setRParenLoc(SourceLocation L) { RParenLoc = L; } 2300d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor 23017c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson virtual SourceRange getSourceRange() const { 23027c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson return SourceRange(BuiltinLoc, RParenLoc); 23031eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump } 23047c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson static bool classof(const Stmt *T) { 23057c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson return T->getStmtClass() == VAArgExprClass; 23067c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson } 23077c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson static bool classof(const VAArgExpr *) { return true; } 23081eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 23097c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson // Iterators 23107c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson virtual child_iterator child_begin(); 23111eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump virtual child_iterator child_end(); 23127c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson}; 23131eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 23144c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// @brief Describes an C or C++ initializer list. 23154c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// 23164c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// InitListExpr describes an initializer list, which can be used to 23174c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// initialize objects of different types, including 23184c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// struct/class/union types, arrays, and vectors. For example: 23194c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// 23204c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// @code 23214c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// struct foo x = { 1, { 2, 3 } }; 23224c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// @endcode 2323196ef51bc4d008ec1c69851fb3b0f8d036065931Chris Lattner/// 23244c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// Prior to semantic analysis, an initializer list will represent the 23254c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// initializer list as written by the user, but will have the 23264c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// placeholder type "void". This initializer list is called the 23274c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// syntactic form of the initializer, and may contain C99 designated 23284c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// initializers (represented as DesignatedInitExprs), initializations 23294c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// of subobject members without explicit braces, and so on. Clients 23304c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// interested in the original syntax of the initializer list should 23314c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// use the syntactic form of the initializer list. 2332196ef51bc4d008ec1c69851fb3b0f8d036065931Chris Lattner/// 23334c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// After semantic analysis, the initializer list will represent the 23344c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// semantic form of the initializer, where the initializations of all 23354c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// subobjects are made explicit with nested InitListExpr nodes and 23364c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// C99 designators have been eliminated by placing the designated 23374c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// initializations into the subobject they initialize. Additionally, 23384c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// any "holes" in the initialization, where no initializer has been 23394c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// specified for a particular subobject, will be replaced with 23403498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor/// implicitly-generated ImplicitValueInitExpr expressions that 23414c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// value-initialize the subobjects. Note, however, that the 23424c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// initializer lists may still have fewer initializers than there are 23434c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// elements to initialize within the object. 2344196ef51bc4d008ec1c69851fb3b0f8d036065931Chris Lattner/// 23454c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// Given the semantic form of the initializer list, one can retrieve 23464c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// the original syntactic form of that initializer list (if it 23474c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// exists) using getSyntacticForm(). Since many initializer lists 23484c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// have the same syntactic and semantic forms, getSyntacticForm() may 23494c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// return NULL, indicating that the current initializer list also 23504c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// serves as its syntactic form. 235166b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlssonclass InitListExpr : public Expr { 235241ef0c3472a3d09c29bc1792f3d26842f2b8a695Douglas Gregor // FIXME: Eliminate this vector in favor of ASTContext allocation 23535549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek std::vector<Stmt *> InitExprs; 235466b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson SourceLocation LBraceLoc, RBraceLoc; 23551eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 23564c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// Contains the initializer list that describes the syntactic form 23574c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// written in the source code. 23584c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor InitListExpr *SyntacticForm; 23594c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor 23600bb76897bedb8b747efc6523efb432fc24966118Douglas Gregor /// If this initializer list initializes a union, specifies which 23610bb76897bedb8b747efc6523efb432fc24966118Douglas Gregor /// field within the union will be initialized. 23620bb76897bedb8b747efc6523efb432fc24966118Douglas Gregor FieldDecl *UnionFieldInit; 23630bb76897bedb8b747efc6523efb432fc24966118Douglas Gregor 2364a9c878086036de36482cc21e35a33cabe9699b0aDouglas Gregor /// Whether this initializer list originally had a GNU array-range 2365a9c878086036de36482cc21e35a33cabe9699b0aDouglas Gregor /// designator in it. This is a temporary marker used by CodeGen. 2366a9c878086036de36482cc21e35a33cabe9699b0aDouglas Gregor bool HadArrayRangeDesignator; 2367a9c878086036de36482cc21e35a33cabe9699b0aDouglas Gregor 236866b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlssonpublic: 236966b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson InitListExpr(SourceLocation lbraceloc, Expr **initexprs, unsigned numinits, 23704c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor SourceLocation rbraceloc); 2371d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor 2372d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor /// \brief Build an empty initializer list. 2373d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor explicit InitListExpr(EmptyShell Empty) : Expr(InitListExprClass, Empty) { } 23741eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2375c5ae899b4bbf65488445316c63168079177db0edSteve Naroff unsigned getNumInits() const { return InitExprs.size(); } 23761eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 23771eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump const Expr* getInit(unsigned Init) const { 2378c5ae899b4bbf65488445316c63168079177db0edSteve Naroff assert(Init < getNumInits() && "Initializer access out of range!"); 23794c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor return cast_or_null<Expr>(InitExprs[Init]); 238066b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson } 23811eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 23821eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump Expr* getInit(unsigned Init) { 2383c5ae899b4bbf65488445316c63168079177db0edSteve Naroff assert(Init < getNumInits() && "Initializer access out of range!"); 23844c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor return cast_or_null<Expr>(InitExprs[Init]); 238566b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson } 23861eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 23871eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump void setInit(unsigned Init, Expr *expr) { 2388c5ae899b4bbf65488445316c63168079177db0edSteve Naroff assert(Init < getNumInits() && "Initializer access out of range!"); 23899e8925e72f53a9e2c4633b6b48e965ed01702fe4Steve Naroff InitExprs[Init] = expr; 23909e8925e72f53a9e2c4633b6b48e965ed01702fe4Steve Naroff } 2391c5ae899b4bbf65488445316c63168079177db0edSteve Naroff 2392fa2192042f223b5122a9e17719930f77634fd31fDouglas Gregor /// \brief Reserve space for some number of initializers. 2393fa2192042f223b5122a9e17719930f77634fd31fDouglas Gregor void reserveInits(unsigned NumInits); 23941eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 23954c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// @brief Specify the number of initializers 23964c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// 23974c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// If there are more than @p NumInits initializers, the remaining 23984c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// initializers will be destroyed. If there are fewer than @p 23994c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// NumInits initializers, NULL expressions will be added for the 24004c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// unknown initializers. 24014c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor void resizeInits(ASTContext &Context, unsigned NumInits); 24024c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor 24034c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// @brief Updates the initializer at index @p Init with the new 24044c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// expression @p expr, and returns the old expression at that 24054c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// location. 24064c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// 24074c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// When @p Init is out of range for this initializer list, the 24084c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// initializer list will be extended with NULL expressions to 24094c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// accomodate the new entry. 24104c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor Expr *updateInit(unsigned Init, Expr *expr); 2411c5ae899b4bbf65488445316c63168079177db0edSteve Naroff 24120bb76897bedb8b747efc6523efb432fc24966118Douglas Gregor /// \brief If this initializes a union, specifies which field in the 24130bb76897bedb8b747efc6523efb432fc24966118Douglas Gregor /// union to initialize. 24140bb76897bedb8b747efc6523efb432fc24966118Douglas Gregor /// 24150bb76897bedb8b747efc6523efb432fc24966118Douglas Gregor /// Typically, this field is the first named field within the 24160bb76897bedb8b747efc6523efb432fc24966118Douglas Gregor /// union. However, a designated initializer can specify the 24170bb76897bedb8b747efc6523efb432fc24966118Douglas Gregor /// initialization of a different field within the union. 24180bb76897bedb8b747efc6523efb432fc24966118Douglas Gregor FieldDecl *getInitializedFieldInUnion() { return UnionFieldInit; } 24190bb76897bedb8b747efc6523efb432fc24966118Douglas Gregor void setInitializedFieldInUnion(FieldDecl *FD) { UnionFieldInit = FD; } 24200bb76897bedb8b747efc6523efb432fc24966118Douglas Gregor 2421c5ae899b4bbf65488445316c63168079177db0edSteve Naroff // Explicit InitListExpr's originate from source code (and have valid source 2422c5ae899b4bbf65488445316c63168079177db0edSteve Naroff // locations). Implicit InitListExpr's are created by the semantic analyzer. 2423b3eef68111ffc220e449be96da1747998c057790Douglas Gregor bool isExplicit() { 2424b3eef68111ffc220e449be96da1747998c057790Douglas Gregor return LBraceLoc.isValid() && RBraceLoc.isValid(); 2425b3eef68111ffc220e449be96da1747998c057790Douglas Gregor } 24261eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2427d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor SourceLocation getLBraceLoc() const { return LBraceLoc; } 2428d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor void setLBraceLoc(SourceLocation Loc) { LBraceLoc = Loc; } 2429d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor SourceLocation getRBraceLoc() const { return RBraceLoc; } 243087fd703e097c27d63479cb83b687d4000a22bbb1Douglas Gregor void setRBraceLoc(SourceLocation Loc) { RBraceLoc = Loc; } 243187fd703e097c27d63479cb83b687d4000a22bbb1Douglas Gregor 24324c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// @brief Retrieve the initializer list that describes the 24334c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// syntactic form of the initializer. 24344c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// 24351eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /// 24364c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor InitListExpr *getSyntacticForm() const { return SyntacticForm; } 24374c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor void setSyntacticForm(InitListExpr *Init) { SyntacticForm = Init; } 24384c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor 2439a9c878086036de36482cc21e35a33cabe9699b0aDouglas Gregor bool hadArrayRangeDesignator() const { return HadArrayRangeDesignator; } 24401eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump void sawArrayRangeDesignator(bool ARD = true) { 2441d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor HadArrayRangeDesignator = ARD; 2442a9c878086036de36482cc21e35a33cabe9699b0aDouglas Gregor } 2443a9c878086036de36482cc21e35a33cabe9699b0aDouglas Gregor 244466b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson virtual SourceRange getSourceRange() const { 244566b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson return SourceRange(LBraceLoc, RBraceLoc); 24461eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump } 244766b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson static bool classof(const Stmt *T) { 24481eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == InitListExprClass; 244966b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson } 245066b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson static bool classof(const InitListExpr *) { return true; } 24511eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 245266b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson // Iterators 245366b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson virtual child_iterator child_begin(); 245466b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson virtual child_iterator child_end(); 24551eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 24567fcfa4a9b5054bc2a3bc65093f9d2e9e67a70838Ted Kremenek typedef std::vector<Stmt *>::iterator iterator; 24577fcfa4a9b5054bc2a3bc65093f9d2e9e67a70838Ted Kremenek typedef std::vector<Stmt *>::reverse_iterator reverse_iterator; 24581eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 24597fcfa4a9b5054bc2a3bc65093f9d2e9e67a70838Ted Kremenek iterator begin() { return InitExprs.begin(); } 24607fcfa4a9b5054bc2a3bc65093f9d2e9e67a70838Ted Kremenek iterator end() { return InitExprs.end(); } 24617fcfa4a9b5054bc2a3bc65093f9d2e9e67a70838Ted Kremenek reverse_iterator rbegin() { return InitExprs.rbegin(); } 24627fcfa4a9b5054bc2a3bc65093f9d2e9e67a70838Ted Kremenek reverse_iterator rend() { return InitExprs.rend(); } 246366b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson}; 246466b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson 246505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// @brief Represents a C99 designated initializer expression. 246605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// 246705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// A designated initializer expression (C99 6.7.8) contains one or 246805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// more designators (which can be field designators, array 246905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// designators, or GNU array-range designators) followed by an 247005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// expression that initializes the field or element(s) that the 247105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// designators refer to. For example, given: 24721eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// 247305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// @code 247405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// struct point { 247505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// double x; 247605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// double y; 247705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// }; 247805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// struct point ptarray[10] = { [2].y = 1.0, [2].x = 2.0, [0].x = 1.0 }; 247905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// @endcode 248005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// 248105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// The InitListExpr contains three DesignatedInitExprs, the first of 248205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// which covers @c [2].y=1.0. This DesignatedInitExpr will have two 248305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// designators, one array designator for @c [2] followed by one field 248405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// designator for @c .y. The initalization expression will be 1.0. 248505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregorclass DesignatedInitExpr : public Expr { 2486ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregorpublic: 2487ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor /// \brief Forward declaration of the Designator class. 2488ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor class Designator; 2489ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor 2490ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregorprivate: 249105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// The location of the '=' or ':' prior to the actual initializer 249205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// expression. 249305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor SourceLocation EqualOrColonLoc; 249405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 2495eeae8f072748affce25ab4064982626361293390Douglas Gregor /// Whether this designated initializer used the GNU deprecated 249605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// syntax rather than the C99 '=' syntax. 2497eeae8f072748affce25ab4064982626361293390Douglas Gregor bool GNUSyntax : 1; 249805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 249905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// The number of designators in this initializer expression. 250005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor unsigned NumDesignators : 15; 250105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 2502ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor /// \brief The designators in this designated initialization 2503ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor /// expression. 2504ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor Designator *Designators; 2505ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor 250605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// The number of subexpressions of this initializer expression, 250705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// which contains both the initializer and any additional 250805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// expressions used by array and array-range designators. 250905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor unsigned NumSubExprs : 16; 251005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 2511ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor 25121eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump DesignatedInitExpr(QualType Ty, unsigned NumDesignators, 2513ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor const Designator *Designators, 2514eeae8f072748affce25ab4064982626361293390Douglas Gregor SourceLocation EqualOrColonLoc, bool GNUSyntax, 25159ea62768fca25d829d80199cf4f8cf0f4dd39251Douglas Gregor Expr **IndexExprs, unsigned NumIndexExprs, 25169ea62768fca25d829d80199cf4f8cf0f4dd39251Douglas Gregor Expr *Init); 251705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 2518d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor explicit DesignatedInitExpr(unsigned NumSubExprs) 2519d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor : Expr(DesignatedInitExprClass, EmptyShell()), 2520d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor NumDesignators(0), Designators(0), NumSubExprs(NumSubExprs) { } 2521d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor 252242602bb40aefcc2751d4078ba88aacf4d965c9bdDouglas Gregorprotected: 25231eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump virtual void DoDestroy(ASTContext &C); 252442602bb40aefcc2751d4078ba88aacf4d965c9bdDouglas Gregor 252505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregorpublic: 252605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// A field designator, e.g., ".x". 252705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor struct FieldDesignator { 252805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// Refers to the field that is being initialized. The low bit 252905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// of this field determines whether this is actually a pointer 253005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// to an IdentifierInfo (if 1) or a FieldDecl (if 0). When 253105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// initially constructed, a field designator will store an 253205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// IdentifierInfo*. After semantic analysis has resolved that 253305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// name, the field designator will instead store a FieldDecl*. 253405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor uintptr_t NameOrField; 25351eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 253605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// The location of the '.' in the designated initializer. 253705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor unsigned DotLoc; 25381eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 253905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// The location of the field name in the designated initializer. 254005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor unsigned FieldLoc; 254105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor }; 254205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 254305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// An array or GNU array-range designator, e.g., "[9]" or "[10..15]". 254405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor struct ArrayOrRangeDesignator { 254505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// Location of the first index expression within the designated 254605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// initializer expression's list of subexpressions. 254705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor unsigned Index; 254805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// The location of the '[' starting the array range designator. 254905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor unsigned LBracketLoc; 255005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// The location of the ellipsis separating the start and end 255105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// indices. Only valid for GNU array-range designators. 255205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor unsigned EllipsisLoc; 255305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// The location of the ']' terminating the array range designator. 25541eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump unsigned RBracketLoc; 255505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor }; 255605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 255705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// @brief Represents a single C99 designator. 255805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// 255905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// @todo This class is infuriatingly similar to clang::Designator, 256005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// but minor differences (storing indices vs. storing pointers) 256105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// keep us from reusing it. Try harder, later, to rectify these 256205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// differences. 256305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor class Designator { 256405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// @brief The kind of designator this describes. 256505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor enum { 256605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor FieldDesignator, 256705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor ArrayDesignator, 256805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor ArrayRangeDesignator 256905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } Kind; 257005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 257105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor union { 257205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// A field designator, e.g., ".x". 257305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor struct FieldDesignator Field; 257405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// An array or GNU array-range designator, e.g., "[9]" or "[10..15]". 257505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor struct ArrayOrRangeDesignator ArrayOrRange; 257605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor }; 257705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor friend class DesignatedInitExpr; 257805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 257905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor public: 2580ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor Designator() {} 2581ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor 258205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// @brief Initializes a field designator. 25831eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump Designator(const IdentifierInfo *FieldName, SourceLocation DotLoc, 25841eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump SourceLocation FieldLoc) 258505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor : Kind(FieldDesignator) { 258605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor Field.NameOrField = reinterpret_cast<uintptr_t>(FieldName) | 0x01; 258705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor Field.DotLoc = DotLoc.getRawEncoding(); 258805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor Field.FieldLoc = FieldLoc.getRawEncoding(); 258905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } 259005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 259105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// @brief Initializes an array designator. 25921eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump Designator(unsigned Index, SourceLocation LBracketLoc, 259305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor SourceLocation RBracketLoc) 259405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor : Kind(ArrayDesignator) { 259505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor ArrayOrRange.Index = Index; 259605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor ArrayOrRange.LBracketLoc = LBracketLoc.getRawEncoding(); 259705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor ArrayOrRange.EllipsisLoc = SourceLocation().getRawEncoding(); 259805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor ArrayOrRange.RBracketLoc = RBracketLoc.getRawEncoding(); 259905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } 260005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 260105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// @brief Initializes a GNU array-range designator. 26021eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump Designator(unsigned Index, SourceLocation LBracketLoc, 260305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor SourceLocation EllipsisLoc, SourceLocation RBracketLoc) 260405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor : Kind(ArrayRangeDesignator) { 260505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor ArrayOrRange.Index = Index; 260605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor ArrayOrRange.LBracketLoc = LBracketLoc.getRawEncoding(); 260705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor ArrayOrRange.EllipsisLoc = EllipsisLoc.getRawEncoding(); 260805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor ArrayOrRange.RBracketLoc = RBracketLoc.getRawEncoding(); 260905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } 261005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 261105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor bool isFieldDesignator() const { return Kind == FieldDesignator; } 261205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor bool isArrayDesignator() const { return Kind == ArrayDesignator; } 261305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor bool isArrayRangeDesignator() const { return Kind == ArrayRangeDesignator; } 261405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 261505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor IdentifierInfo * getFieldName(); 261605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 261705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor FieldDecl *getField() { 261805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor assert(Kind == FieldDesignator && "Only valid on a field designator"); 261905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor if (Field.NameOrField & 0x01) 262005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor return 0; 262105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor else 262205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor return reinterpret_cast<FieldDecl *>(Field.NameOrField); 262305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } 262405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 262505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor void setField(FieldDecl *FD) { 262605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor assert(Kind == FieldDesignator && "Only valid on a field designator"); 262705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor Field.NameOrField = reinterpret_cast<uintptr_t>(FD); 262805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } 262905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 263087f55cf59e82f246d8605733e9300d0c5f6830a6Douglas Gregor SourceLocation getDotLoc() const { 263187f55cf59e82f246d8605733e9300d0c5f6830a6Douglas Gregor assert(Kind == FieldDesignator && "Only valid on a field designator"); 263287f55cf59e82f246d8605733e9300d0c5f6830a6Douglas Gregor return SourceLocation::getFromRawEncoding(Field.DotLoc); 263387f55cf59e82f246d8605733e9300d0c5f6830a6Douglas Gregor } 263487f55cf59e82f246d8605733e9300d0c5f6830a6Douglas Gregor 263505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor SourceLocation getFieldLoc() const { 263605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor assert(Kind == FieldDesignator && "Only valid on a field designator"); 263705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor return SourceLocation::getFromRawEncoding(Field.FieldLoc); 263805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } 263905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 264005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor SourceLocation getLBracketLoc() const { 264105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor assert((Kind == ArrayDesignator || Kind == ArrayRangeDesignator) && 264205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor "Only valid on an array or array-range designator"); 264305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor return SourceLocation::getFromRawEncoding(ArrayOrRange.LBracketLoc); 264405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } 264505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 264605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor SourceLocation getRBracketLoc() const { 264705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor assert((Kind == ArrayDesignator || Kind == ArrayRangeDesignator) && 264805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor "Only valid on an array or array-range designator"); 264905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor return SourceLocation::getFromRawEncoding(ArrayOrRange.RBracketLoc); 265005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } 265105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 265205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor SourceLocation getEllipsisLoc() const { 265305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor assert(Kind == ArrayRangeDesignator && 265405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor "Only valid on an array-range designator"); 265505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor return SourceLocation::getFromRawEncoding(ArrayOrRange.EllipsisLoc); 265605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } 26574c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor 2658d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor unsigned getFirstExprIndex() const { 2659d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor assert((Kind == ArrayDesignator || Kind == ArrayRangeDesignator) && 2660d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor "Only valid on an array or array-range designator"); 2661d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor return ArrayOrRange.Index; 2662d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor } 2663d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor 26644c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor SourceLocation getStartLocation() const { 26654c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor if (Kind == FieldDesignator) 26664c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor return getDotLoc().isInvalid()? getFieldLoc() : getDotLoc(); 26674c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor else 26684c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor return getLBracketLoc(); 26694c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor } 267005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor }; 267105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 26721eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static DesignatedInitExpr *Create(ASTContext &C, Designator *Designators, 267305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor unsigned NumDesignators, 267405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor Expr **IndexExprs, unsigned NumIndexExprs, 267505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor SourceLocation EqualOrColonLoc, 2676eeae8f072748affce25ab4064982626361293390Douglas Gregor bool GNUSyntax, Expr *Init); 267705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 2678d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor static DesignatedInitExpr *CreateEmpty(ASTContext &C, unsigned NumIndexExprs); 2679d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor 268005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// @brief Returns the number of designators in this initializer. 268105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor unsigned size() const { return NumDesignators; } 268205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 268305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor // Iterator access to the designators. 268405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor typedef Designator* designators_iterator; 2685ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor designators_iterator designators_begin() { return Designators; } 26861eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump designators_iterator designators_end() { 26871eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return Designators + NumDesignators; 2688ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor } 268905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 2690711997184366d584c9c437102cae1e9d9927b986Douglas Gregor Designator *getDesignator(unsigned Idx) { return &designators_begin()[Idx]; } 2691711997184366d584c9c437102cae1e9d9927b986Douglas Gregor 2692d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor void setDesignators(const Designator *Desigs, unsigned NumDesigs); 2693d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor 269405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor Expr *getArrayIndex(const Designator& D); 269505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor Expr *getArrayRangeStart(const Designator& D); 269605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor Expr *getArrayRangeEnd(const Designator& D); 269705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 269805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// @brief Retrieve the location of the '=' that precedes the 269905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// initializer value itself, if present. 270005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor SourceLocation getEqualOrColonLoc() const { return EqualOrColonLoc; } 2701d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor void setEqualOrColonLoc(SourceLocation L) { EqualOrColonLoc = L; } 270205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 270305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// @brief Determines whether this designated initializer used the 2704eeae8f072748affce25ab4064982626361293390Douglas Gregor /// deprecated GNU syntax for designated initializers. 2705eeae8f072748affce25ab4064982626361293390Douglas Gregor bool usesGNUSyntax() const { return GNUSyntax; } 2706d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor void setGNUSyntax(bool GNU) { GNUSyntax = GNU; } 270705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 270805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// @brief Retrieve the initializer value. 27091eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump Expr *getInit() const { 271005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor return cast<Expr>(*const_cast<DesignatedInitExpr*>(this)->child_begin()); 271105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } 271205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 271305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor void setInit(Expr *init) { 271405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor *child_begin() = init; 271505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } 271605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 2717d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor /// \brief Retrieve the total number of subexpressions in this 2718d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor /// designated initializer expression, including the actual 2719d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor /// initialized value and any expressions that occur within array 2720d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor /// and array-range designators. 2721d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor unsigned getNumSubExprs() const { return NumSubExprs; } 2722d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor 2723d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor Expr *getSubExpr(unsigned Idx) { 2724d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor assert(Idx < NumSubExprs && "Subscript out of range"); 2725d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor char* Ptr = static_cast<char*>(static_cast<void *>(this)); 2726d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor Ptr += sizeof(DesignatedInitExpr); 2727d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor return reinterpret_cast<Expr**>(reinterpret_cast<void**>(Ptr))[Idx]; 2728d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor } 2729d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor 2730d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor void setSubExpr(unsigned Idx, Expr *E) { 2731d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor assert(Idx < NumSubExprs && "Subscript out of range"); 2732d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor char* Ptr = static_cast<char*>(static_cast<void *>(this)); 2733d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor Ptr += sizeof(DesignatedInitExpr); 2734d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor reinterpret_cast<Expr**>(reinterpret_cast<void**>(Ptr))[Idx] = E; 2735d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor } 2736d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor 2737ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor /// \brief Replaces the designator at index @p Idx with the series 2738ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor /// of designators in [First, Last). 27391eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump void ExpandDesignator(unsigned Idx, const Designator *First, 2740ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor const Designator *Last); 2741ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor 274205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor virtual SourceRange getSourceRange() const; 274305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 274405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor static bool classof(const Stmt *T) { 27451eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == DesignatedInitExprClass; 274605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } 274705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor static bool classof(const DesignatedInitExpr *) { return true; } 274805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 274905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor // Iterators 275005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor virtual child_iterator child_begin(); 27511eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump virtual child_iterator child_end(); 27523498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor}; 27533498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor 27543498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor/// \brief Represents an implicitly-generated value initialization of 27553498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor/// an object of a given type. 27563498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor/// 27571a51b4a11b7db25cac2134249711ecaaf9d1c0a8Douglas Gregor/// Implicit value initializations occur within semantic initializer 27581a51b4a11b7db25cac2134249711ecaaf9d1c0a8Douglas Gregor/// list expressions (InitListExpr) as placeholders for subobject 27593498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor/// initializations not explicitly specified by the user. 27601a51b4a11b7db25cac2134249711ecaaf9d1c0a8Douglas Gregor/// 27611a51b4a11b7db25cac2134249711ecaaf9d1c0a8Douglas Gregor/// \see InitListExpr 27621eb4433ac451dc16f4133a88af2d002ac26c58efMike Stumpclass ImplicitValueInitExpr : public Expr { 27633498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregorpublic: 27641eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump explicit ImplicitValueInitExpr(QualType ty) 27653498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor : Expr(ImplicitValueInitExprClass, ty) { } 27663498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor 2767d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor /// \brief Construct an empty implicit value initialization. 2768d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor explicit ImplicitValueInitExpr(EmptyShell Empty) 2769d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor : Expr(ImplicitValueInitExprClass, Empty) { } 2770d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor 27711eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 27723498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor return T->getStmtClass() == ImplicitValueInitExprClass; 27733498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor } 27743498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor static bool classof(const ImplicitValueInitExpr *) { return true; } 27753498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor 27763498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor virtual SourceRange getSourceRange() const { 27773498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor return SourceRange(); 27783498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor } 27793498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor 27803498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor // Iterators 27813498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor virtual child_iterator child_begin(); 27821eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump virtual child_iterator child_end(); 278305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor}; 278405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 27852ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman 27862ef13e5abef0570a9f567b4671367275c05d4d34Nate Begemanclass ParenListExpr : public Expr { 27872ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman Stmt **Exprs; 27882ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman unsigned NumExprs; 27892ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman SourceLocation LParenLoc, RParenLoc; 27902ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman 27911eb4433ac451dc16f4133a88af2d002ac26c58efMike Stumpprotected: 27922ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman virtual void DoDestroy(ASTContext& C); 27931eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 27942ef13e5abef0570a9f567b4671367275c05d4d34Nate Begemanpublic: 27951eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump ParenListExpr(ASTContext& C, SourceLocation lparenloc, Expr **exprs, 27962ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman unsigned numexprs, SourceLocation rparenloc); 27972ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman 27982ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman ~ParenListExpr() {} 27992ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman 28002ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman /// \brief Build an empty paren list. 28012ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman //explicit ParenListExpr(EmptyShell Empty) : Expr(ParenListExprClass, Empty) { } 28021eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 28032ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman unsigned getNumExprs() const { return NumExprs; } 28041eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 28051eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump const Expr* getExpr(unsigned Init) const { 28062ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman assert(Init < getNumExprs() && "Initializer access out of range!"); 28072ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman return cast_or_null<Expr>(Exprs[Init]); 28082ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman } 28091eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 28101eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump Expr* getExpr(unsigned Init) { 28112ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman assert(Init < getNumExprs() && "Initializer access out of range!"); 28122ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman return cast_or_null<Expr>(Exprs[Init]); 28132ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman } 28142ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman 281583ddad3ab513f5d73698cf9fbeb4ed3f011bc3b9Douglas Gregor Expr **getExprs() { return reinterpret_cast<Expr **>(Exprs); } 28161eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 28172ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman SourceLocation getLParenLoc() const { return LParenLoc; } 28182ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman SourceLocation getRParenLoc() const { return RParenLoc; } 28192ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman 28202ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman virtual SourceRange getSourceRange() const { 28212ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman return SourceRange(LParenLoc, RParenLoc); 28221eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump } 28232ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman static bool classof(const Stmt *T) { 28241eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == ParenListExprClass; 28252ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman } 28262ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman static bool classof(const ParenListExpr *) { return true; } 28271eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 28282ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman // Iterators 28292ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman virtual child_iterator child_begin(); 28302ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman virtual child_iterator child_end(); 28312ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman}; 28322ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman 28331eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 28344eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff//===----------------------------------------------------------------------===// 28354eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff// Clang Extensions 28364eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff//===----------------------------------------------------------------------===// 28374eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff 2838a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner 2839a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner/// ExtVectorElementExpr - This represents access to specific elements of a 2840a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner/// vector, and may occur on the left hand side or right hand side. For example 2841a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner/// the following is legal: "V.xy = V.zw" if V is a 4 element extended vector. 2842a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner/// 284373525de7fd9bdd534382dc89a24f1f76db3e04b9Chris Lattner/// Note that the base may have either vector or pointer to vector type, just 284473525de7fd9bdd534382dc89a24f1f76db3e04b9Chris Lattner/// like a struct field reference. 284573525de7fd9bdd534382dc89a24f1f76db3e04b9Chris Lattner/// 2846a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattnerclass ExtVectorElementExpr : public Expr { 2847a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner Stmt *Base; 2848d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor IdentifierInfo *Accessor; 2849a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner SourceLocation AccessorLoc; 2850a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattnerpublic: 2851a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner ExtVectorElementExpr(QualType ty, Expr *base, IdentifierInfo &accessor, 2852a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner SourceLocation loc) 28531eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump : Expr(ExtVectorElementExprClass, ty), 2854d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor Base(base), Accessor(&accessor), AccessorLoc(loc) {} 28551eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2856d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor /// \brief Build an empty vector element expression. 2857d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor explicit ExtVectorElementExpr(EmptyShell Empty) 2858d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor : Expr(ExtVectorElementExprClass, Empty) { } 2859d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor 2860a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner const Expr *getBase() const { return cast<Expr>(Base); } 2861a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner Expr *getBase() { return cast<Expr>(Base); } 2862d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor void setBase(Expr *E) { Base = E; } 2863d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor 2864d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor IdentifierInfo &getAccessor() const { return *Accessor; } 2865d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor void setAccessor(IdentifierInfo *II) { Accessor = II; } 2866d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor 2867d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor SourceLocation getAccessorLoc() const { return AccessorLoc; } 2868d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor void setAccessorLoc(SourceLocation L) { AccessorLoc = L; } 2869d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor 2870a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner /// getNumElements - Get the number of components being selected. 2871a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner unsigned getNumElements() const; 28721eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2873a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner /// containsDuplicateElements - Return true if any element access is 2874a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner /// repeated. 2875a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner bool containsDuplicateElements() const; 28761eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2877a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner /// getEncodedElementAccess - Encode the elements accessed into an llvm 2878a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner /// aggregate Constant of ConstantInt(s). 2879a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner void getEncodedElementAccess(llvm::SmallVectorImpl<unsigned> &Elts) const; 28801eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2881a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner virtual SourceRange getSourceRange() const { 2882a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner return SourceRange(getBase()->getLocStart(), AccessorLoc); 2883a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner } 28841eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 28852140e904dbe53657339cb5b1cc13de563ca0d1fcChris Lattner /// isArrow - Return true if the base expression is a pointer to vector, 28862140e904dbe53657339cb5b1cc13de563ca0d1fcChris Lattner /// return false if the base expression is a vector. 28872140e904dbe53657339cb5b1cc13de563ca0d1fcChris Lattner bool isArrow() const; 28881eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 28891eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 28901eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == ExtVectorElementExprClass; 2891a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner } 2892a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner static bool classof(const ExtVectorElementExpr *) { return true; } 28931eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2894a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner // Iterators 2895a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner virtual child_iterator child_begin(); 2896a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner virtual child_iterator child_end(); 2897a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner}; 2898a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner 2899a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner 290056ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroff/// BlockExpr - Adaptor class for mixing a BlockDecl with expressions. 29019c3c902835ef7d37300463ad47176ec21a67dc8bSteve Naroff/// ^{ statement-body } or ^(int arg1, float arg2){ statement-body } 29024eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroffclass BlockExpr : public Expr { 290356ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroffprotected: 290456ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroff BlockDecl *TheBlock; 2905b83d287bc7f47d36fb0751a481e2ef9308b37252Mike Stump bool HasBlockDeclRefExprs; 29064eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroffpublic: 2907b83d287bc7f47d36fb0751a481e2ef9308b37252Mike Stump BlockExpr(BlockDecl *BD, QualType ty, bool hasBlockDeclRefExprs) 29081eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump : Expr(BlockExprClass, ty), 2909b83d287bc7f47d36fb0751a481e2ef9308b37252Mike Stump TheBlock(BD), HasBlockDeclRefExprs(hasBlockDeclRefExprs) {} 29109c3c902835ef7d37300463ad47176ec21a67dc8bSteve Naroff 291184af7c27cdc615ff917a501d61256b4049383c97Douglas Gregor /// \brief Build an empty block expression. 291284af7c27cdc615ff917a501d61256b4049383c97Douglas Gregor explicit BlockExpr(EmptyShell Empty) : Expr(BlockExprClass, Empty) { } 291384af7c27cdc615ff917a501d61256b4049383c97Douglas Gregor 2914d5cab5435371b8cc74a9e05ebd40b5995ebad149Anders Carlsson const BlockDecl *getBlockDecl() const { return TheBlock; } 291556ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroff BlockDecl *getBlockDecl() { return TheBlock; } 291684af7c27cdc615ff917a501d61256b4049383c97Douglas Gregor void setBlockDecl(BlockDecl *BD) { TheBlock = BD; } 291784af7c27cdc615ff917a501d61256b4049383c97Douglas Gregor 291856ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroff // Convenience functions for probing the underlying BlockDecl. 291956ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroff SourceLocation getCaretLocation() const; 292056ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroff const Stmt *getBody() const; 292156ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroff Stmt *getBody(); 29229c3c902835ef7d37300463ad47176ec21a67dc8bSteve Naroff 29239c3c902835ef7d37300463ad47176ec21a67dc8bSteve Naroff virtual SourceRange getSourceRange() const { 292456ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroff return SourceRange(getCaretLocation(), getBody()->getLocEnd()); 29259c3c902835ef7d37300463ad47176ec21a67dc8bSteve Naroff } 29269c3c902835ef7d37300463ad47176ec21a67dc8bSteve Naroff 292756ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroff /// getFunctionType - Return the underlying function type for this block. 292856ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroff const FunctionType *getFunctionType() const; 292956ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroff 2930b83d287bc7f47d36fb0751a481e2ef9308b37252Mike Stump /// hasBlockDeclRefExprs - Return true iff the block has BlockDeclRefExpr 29315b54b88c4082bb81b8b341b622fda9a85cbd5fadChris Lattner /// inside of the block that reference values outside the block. 2932b83d287bc7f47d36fb0751a481e2ef9308b37252Mike Stump bool hasBlockDeclRefExprs() const { return HasBlockDeclRefExprs; } 293384af7c27cdc615ff917a501d61256b4049383c97Douglas Gregor void setHasBlockDeclRefExprs(bool BDRE) { HasBlockDeclRefExprs = BDRE; } 2934b83d287bc7f47d36fb0751a481e2ef9308b37252Mike Stump 29351eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 29369c3c902835ef7d37300463ad47176ec21a67dc8bSteve Naroff return T->getStmtClass() == BlockExprClass; 29374eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff } 29384eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff static bool classof(const BlockExpr *) { return true; } 29391eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 29404eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff // Iterators 29414eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff virtual child_iterator child_begin(); 29424eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff virtual child_iterator child_end(); 29434eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff}; 29441eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 29454eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff/// BlockDeclRefExpr - A reference to a declared variable, function, 29464eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff/// enum, etc. 29474eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroffclass BlockDeclRefExpr : public Expr { 29481eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump ValueDecl *D; 29494eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff SourceLocation Loc; 29507d5c74ecbbd8719436c071f38657bc8e97ee4a24Fariborz Jahanian bool IsByRef : 1; 29517d5c74ecbbd8719436c071f38657bc8e97ee4a24Fariborz Jahanian bool ConstQualAdded : 1; 29524eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroffpublic: 29531eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump BlockDeclRefExpr(ValueDecl *d, QualType t, SourceLocation l, bool ByRef, 29547d5c74ecbbd8719436c071f38657bc8e97ee4a24Fariborz Jahanian bool constAdded = false) : 29557d5c74ecbbd8719436c071f38657bc8e97ee4a24Fariborz Jahanian Expr(BlockDeclRefExprClass, t), D(d), Loc(l), IsByRef(ByRef), 29567d5c74ecbbd8719436c071f38657bc8e97ee4a24Fariborz Jahanian ConstQualAdded(constAdded) {} 295794cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor 295894cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor // \brief Build an empty reference to a declared variable in a 295994cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor // block. 296094cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor explicit BlockDeclRefExpr(EmptyShell Empty) 296194cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor : Expr(BlockDeclRefExprClass, Empty) { } 29621eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 29634eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff ValueDecl *getDecl() { return D; } 29644eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff const ValueDecl *getDecl() const { return D; } 296594cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor void setDecl(ValueDecl *VD) { D = VD; } 296694cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor 296794cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor SourceLocation getLocation() const { return Loc; } 296894cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor void setLocation(SourceLocation L) { Loc = L; } 296994cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor 29704eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff virtual SourceRange getSourceRange() const { return SourceRange(Loc); } 29711eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 29724eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff bool isByRef() const { return IsByRef; } 297394cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor void setByRef(bool BR) { IsByRef = BR; } 29741eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 29757d5c74ecbbd8719436c071f38657bc8e97ee4a24Fariborz Jahanian bool isConstQualAdded() const { return ConstQualAdded; } 29767d5c74ecbbd8719436c071f38657bc8e97ee4a24Fariborz Jahanian void setConstQualAdded(bool C) { ConstQualAdded = C; } 297794cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor 29781eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 29791eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == BlockDeclRefExprClass; 29804eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff } 29814eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff static bool classof(const BlockDeclRefExpr *) { return true; } 29821eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 29834eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff // Iterators 29844eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff virtual child_iterator child_begin(); 29854eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff virtual child_iterator child_end(); 29864eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff}; 29874eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff 29885f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} // end namespace clang 29895f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 29905f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer#endif 2991