Expr.h revision dbd872f273a8dbf22e089b3def6c09f0a460965d
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; 38d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall class TemplateArgumentListInfo; 3988a3514f36de96b19cdf50141c640df1a5f13f6cDouglas Gregor 405f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// Expr - This represents one expression. Note that Expr's are subclasses of 415f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// Stmt. This allows an expression to be transparently used any place a Stmt 425f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// is required. 435f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 445f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass Expr : public Stmt { 455f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer QualType TR; 46898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor 479ea62768fca25d829d80199cf4f8cf0f4dd39251Douglas Gregorprotected: 481eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /// TypeDependent - Whether this expression is type-dependent 49898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// (C++ [temp.dep.expr]). 50898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor bool TypeDependent : 1; 51898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor 521eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /// ValueDependent - Whether this expression is value-dependent 53898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// (C++ [temp.dep.constexpr]). 54898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor bool ValueDependent : 1; 55898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor 56898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // FIXME: Eventually, this constructor should go away and we should 57898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // require every subclass to provide type/value-dependence 58898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // information. 591eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump Expr(StmtClass SC, QualType T) 60b3eef68111ffc220e449be96da1747998c057790Douglas Gregor : Stmt(SC), TypeDependent(false), ValueDependent(false) { 611eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump setType(T); 6283233a4b7c2bc7b531ffa3b33fdd1cd8138373b6Douglas Gregor } 63898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor 64898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor Expr(StmtClass SC, QualType T, bool TD, bool VD) 65b3eef68111ffc220e449be96da1747998c057790Douglas Gregor : Stmt(SC), TypeDependent(TD), ValueDependent(VD) { 66898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor setType(T); 67898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor } 68898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor 690b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor /// \brief Construct an empty expression. 700b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor explicit Expr(StmtClass SC, EmptyShell) : Stmt(SC) { } 710b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor 721eb4433ac451dc16f4133a88af2d002ac26c58efMike Stumppublic: 7343d9d9243329b1b75d1a6efdad9f16d6fb386b8eDouglas Gregor /// \brief Increases the reference count for this expression. 7443d9d9243329b1b75d1a6efdad9f16d6fb386b8eDouglas Gregor /// 7543d9d9243329b1b75d1a6efdad9f16d6fb386b8eDouglas Gregor /// Invoke the Retain() operation when this expression 7643d9d9243329b1b75d1a6efdad9f16d6fb386b8eDouglas Gregor /// is being shared by another owner. 7743d9d9243329b1b75d1a6efdad9f16d6fb386b8eDouglas Gregor Expr *Retain() { 7843d9d9243329b1b75d1a6efdad9f16d6fb386b8eDouglas Gregor Stmt::Retain(); 7943d9d9243329b1b75d1a6efdad9f16d6fb386b8eDouglas Gregor return this; 8043d9d9243329b1b75d1a6efdad9f16d6fb386b8eDouglas Gregor } 811eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 82f7c2aa0b049272d8f318988c1965760dcb852578Douglas Gregor QualType getType() const { return TR; } 831eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump void setType(QualType t) { 849d293dfc0ad7c44ae0b5eb9517f1ed8c8d8b7ff7Douglas Gregor // In C++, the type of an expression is always adjusted so that it 859d293dfc0ad7c44ae0b5eb9517f1ed8c8d8b7ff7Douglas Gregor // will not have reference type an expression will never have 869d293dfc0ad7c44ae0b5eb9517f1ed8c8d8b7ff7Douglas Gregor // reference type (C++ [expr]p6). Use 879d293dfc0ad7c44ae0b5eb9517f1ed8c8d8b7ff7Douglas Gregor // QualType::getNonReferenceType() to retrieve the non-reference 889d293dfc0ad7c44ae0b5eb9517f1ed8c8d8b7ff7Douglas Gregor // type. Additionally, inspect Expr::isLvalue to determine whether 899d293dfc0ad7c44ae0b5eb9517f1ed8c8d8b7ff7Douglas Gregor // an expression that is adjusted in this manner should be 909d293dfc0ad7c44ae0b5eb9517f1ed8c8d8b7ff7Douglas Gregor // considered an lvalue. 91905d11d53aeb6b26744f44fedc2b2820c7a62df6Douglas Gregor assert((t.isNull() || !t->isReferenceType()) && 928320aaaa01d931aa234fc3bce05b399ef41898d5Daniel Dunbar "Expressions can't have reference type"); 93f7c2aa0b049272d8f318988c1965760dcb852578Douglas Gregor 941eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump TR = t; 959d293dfc0ad7c44ae0b5eb9517f1ed8c8d8b7ff7Douglas Gregor } 9677ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek 97898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// isValueDependent - Determines whether this expression is 98898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// value-dependent (C++ [temp.dep.constexpr]). For example, the 99898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// array bound of "Chars" in the following example is 1001eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /// value-dependent. 101898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// @code 102898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// template<int Size, char (&Chars)[Size]> struct meta_string; 103898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// @endcode 104898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor bool isValueDependent() const { return ValueDependent; } 105898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor 1060b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor /// \brief Set whether this expression is value-dependent or not. 1070b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor void setValueDependent(bool VD) { ValueDependent = VD; } 1080b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor 109898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// isTypeDependent - Determines whether this expression is 110898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// type-dependent (C++ [temp.dep.expr]), which means that its type 111898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// could change from one template instantiation to the next. For 112898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// example, the expressions "x" and "x + y" are type-dependent in 113898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// the following code, but "y" is not type-dependent: 114898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// @code 1151eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /// template<typename T> 116898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// void add(T x, int y) { 117898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// x + y; 118898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// } 119898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// @endcode 120898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor bool isTypeDependent() const { return TypeDependent; } 121898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor 1220b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor /// \brief Set whether this expression is type-dependent or not. 1230b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor void setTypeDependent(bool TD) { TypeDependent = TD; } 1240b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor 1255f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// SourceLocation tokens are not useful in isolation - they are low level 1265f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// value objects created/interpreted by SourceManager. We assume AST 1275f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// clients will have a pointer to the respective SourceManager. 1285f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer virtual SourceRange getSourceRange() const = 0; 1295f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1305f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// getExprLoc - Return the preferred location for the arrow when diagnosing 1315f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// a problem with a generic expression. 1325f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer virtual SourceLocation getExprLoc() const { return getLocStart(); } 1331eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 134026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner /// isUnusedResultAWarning - Return true if this immediate expression should 135026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner /// be warned about if the result is unused. If so, fill in Loc and Ranges 136026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner /// with location to warn on and the source range[s] to report with the 137026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner /// warning. 138026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner bool isUnusedResultAWarning(SourceLocation &Loc, SourceRange &R1, 139df317bf71653eeb235da8337b1e8e790f9653aa4Mike Stump SourceRange &R2, ASTContext &Ctx) const; 1401eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1415f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// isLvalue - C99 6.3.2.1: an lvalue is an expression with an object type or 1425f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// incomplete type other than void. Nonarray expressions that can be lvalues: 1435f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// - name, where name must be a variable 1445f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// - e[i] 1455f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// - (e), where e must be an lvalue 1465f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// - e.name, where e must be an lvalue 1475f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// - e->name 1485f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// - *e, the type of e cannot be a function type 1495f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// - string-constant 15008ad47cbd1f81fcb31dbc731c13b885a07e12704Bill Wendling /// - reference type [C++ [expr]] 15176458501a8963fa11b91c9337a487de6871169b4Sebastian Redl /// - b ? x : y, where x and y are lvalues of suitable types [C++] 1525f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// 1535f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer enum isLvalueResult { 1545f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer LV_Valid, 1555f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer LV_NotObjectType, 1565f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer LV_IncompleteVoidType, 157fec0b49c3fa621fbf63e420f3d54a5bb3a0265d2Steve Naroff LV_DuplicateVectorComponents, 15886f194083504938df72135b5b66bf0c5cafd9498Douglas Gregor LV_InvalidExpression, 15986f194083504938df72135b5b66bf0c5cafd9498Douglas Gregor LV_MemberFunction 1605f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer }; 16128be73f74c9e241a23ea24fe5756623de6bf1084Chris Lattner isLvalueResult isLvalue(ASTContext &Ctx) const; 16253202857c60214d80950a975e6e52aebf30bd16aEli Friedman 16353202857c60214d80950a975e6e52aebf30bd16aEli Friedman // Same as above, but excluding checks for non-object and void types in C 16453202857c60214d80950a975e6e52aebf30bd16aEli Friedman isLvalueResult isLvalueInternal(ASTContext &Ctx) const; 1651eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1665f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// isModifiableLvalue - C99 6.3.2.1: an lvalue that does not have array type, 1675f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// does not have an incomplete type, does not have a const-qualified type, 1681eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /// and if it is a structure or union, does not have any member (including, 1695f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// recursively, any member or element of all contained aggregates or unions) 1705f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// with a const-qualified type. 17144e35f7b2b5da1eb338639e46bf0b5522e75c5f3Daniel Dunbar /// 17244e35f7b2b5da1eb338639e46bf0b5522e75c5f3Daniel Dunbar /// \param Loc [in] [out] - A source location which *may* be filled 17344e35f7b2b5da1eb338639e46bf0b5522e75c5f3Daniel Dunbar /// in with the location of the expression making this a 17444e35f7b2b5da1eb338639e46bf0b5522e75c5f3Daniel Dunbar /// non-modifiable lvalue, if specified. 1755f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer enum isModifiableLvalueResult { 1765f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer MLV_Valid, 1775f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer MLV_NotObjectType, 1785f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer MLV_IncompleteVoidType, 179fec0b49c3fa621fbf63e420f3d54a5bb3a0265d2Steve Naroff MLV_DuplicateVectorComponents, 1805f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer MLV_InvalidExpression, 181ca354faa7e9b99af17070c82b9662a5fca76422cChris Lattner MLV_LValueCast, // Specialized form of MLV_InvalidExpression. 1825f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer MLV_IncompleteType, 1835f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer MLV_ConstQualified, 1844f6a7d7ead09b439216c32f2de806a998aeb222aSteve Naroff MLV_ArrayType, 1855daf570d0ce027e18ed5f9d66e6b2a14a40b720dFariborz Jahanian MLV_NotBlockQualified, 186ba8d2d684e74a20bef03828c21c991d222c7e9e5Fariborz Jahanian MLV_ReadonlyProperty, 18786f194083504938df72135b5b66bf0c5cafd9498Douglas Gregor MLV_NoSetterProperty, 18886f194083504938df72135b5b66bf0c5cafd9498Douglas Gregor MLV_MemberFunction 1895f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer }; 19044e35f7b2b5da1eb338639e46bf0b5522e75c5f3Daniel Dunbar isModifiableLvalueResult isModifiableLvalue(ASTContext &Ctx, 19144e35f7b2b5da1eb338639e46bf0b5522e75c5f3Daniel Dunbar SourceLocation *Loc = 0) const; 1921eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 19333bbbc5ec8269bc2cde5b84f970fa49319a30267Douglas Gregor /// \brief If this expression refers to a bit-field, retrieve the 19433bbbc5ec8269bc2cde5b84f970fa49319a30267Douglas Gregor /// declaration of that bit-field. 19533bbbc5ec8269bc2cde5b84f970fa49319a30267Douglas Gregor FieldDecl *getBitField(); 1965f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 19738d068e8f13a119b89a3b8b0f79f35cab1ffd09aAnders Carlsson const FieldDecl *getBitField() const { 19838d068e8f13a119b89a3b8b0f79f35cab1ffd09aAnders Carlsson return const_cast<Expr*>(this)->getBitField(); 19938d068e8f13a119b89a3b8b0f79f35cab1ffd09aAnders Carlsson } 2001eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2015f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// isIntegerConstantExpr - Return true if this expression is a valid integer 2025f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// constant expression, and, if so, return its value in Result. If not a 2035f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// valid i-c-e, return false and fill in Loc (if specified) with the location 2045f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// of the invalid expression. 205590b6646ef747d2f7b42e5f40487ff07642d7b6fChris Lattner bool isIntegerConstantExpr(llvm::APSInt &Result, ASTContext &Ctx, 206590b6646ef747d2f7b42e5f40487ff07642d7b6fChris Lattner SourceLocation *Loc = 0, 2075f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool isEvaluated = true) const; 208590b6646ef747d2f7b42e5f40487ff07642d7b6fChris Lattner bool isIntegerConstantExpr(ASTContext &Ctx, SourceLocation *Loc = 0) const { 2098070a8497c0fb3e6f70a557f788405d8945b1208Daniel Dunbar llvm::APSInt X; 210590b6646ef747d2f7b42e5f40487ff07642d7b6fChris Lattner return isIntegerConstantExpr(X, Ctx, Loc); 2115f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 212c9e8f606787b0bc0c3b08e566b87cc1751694168Eli Friedman /// isConstantInitializer - Returns true if this expression is a constant 213c9e8f606787b0bc0c3b08e566b87cc1751694168Eli Friedman /// initializer, which can be emitted at compile-time. 214c9e8f606787b0bc0c3b08e566b87cc1751694168Eli Friedman bool isConstantInitializer(ASTContext &Ctx) const; 2151eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 21694deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson /// EvalResult is a struct with detailed info about an evaluated expression. 21794deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson struct EvalResult { 2182d6744ff04c1690a1485178d550d2fab84a0270bDaniel Dunbar /// Val - This is the value the expression can be folded to. 21994deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson APValue Val; 2201eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 22194deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson /// HasSideEffects - Whether the evaluated expression has side effects. 22294deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson /// For example, (f() && 0) can be folded, but it still has side effects. 22394deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson bool HasSideEffects; 2241eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 22594deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson /// Diag - If the expression is unfoldable, then Diag contains a note 22694deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson /// diagnostic indicating why it's not foldable. DiagLoc indicates a caret 22794deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson /// position for the error, and DiagExpr is the expression that caused 22894deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson /// the error. 22994deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson /// If the expression is foldable, but not an integer constant expression, 23094deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson /// Diag contains a note diagnostic that describes why it isn't an integer 23194deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson /// constant expression. If the expression *is* an integer constant 23294deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson /// expression, then Diag will be zero. 23394deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson unsigned Diag; 23494deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson const Expr *DiagExpr; 23594deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson SourceLocation DiagLoc; 2361eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 23794deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson EvalResult() : HasSideEffects(false), Diag(0), DiagExpr(0) {} 23894deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson }; 23994deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson 2406ee7aa154e8bbb21a21254293410b944f78b0bfeChris Lattner /// Evaluate - Return true if this is a constant which we can fold using 241019f4e858e78587f2241ff1a76c747d7bcd7578cChris Lattner /// any crazy technique (that has nothing to do with language standards) that 242019f4e858e78587f2241ff1a76c747d7bcd7578cChris Lattner /// we want to. If this function returns true, it returns the folded constant 243019f4e858e78587f2241ff1a76c747d7bcd7578cChris Lattner /// in Result. 2445b45d4ef1ea3f04ec863daf8aa29be6c6e021750Anders Carlsson bool Evaluate(EvalResult &Result, ASTContext &Ctx) const; 2455b45d4ef1ea3f04ec863daf8aa29be6c6e021750Anders Carlsson 246660e6f79a138a30a437c02142f23e7ef4eb21b2eMike Stump /// EvaluateAsAny - The same as Evaluate, except that it also succeeds on 247660e6f79a138a30a437c02142f23e7ef4eb21b2eMike Stump /// stack based objects. 248660e6f79a138a30a437c02142f23e7ef4eb21b2eMike Stump bool EvaluateAsAny(EvalResult &Result, ASTContext &Ctx) const; 249660e6f79a138a30a437c02142f23e7ef4eb21b2eMike Stump 2506ee7aa154e8bbb21a21254293410b944f78b0bfeChris Lattner /// isEvaluatable - Call Evaluate to see if this expression can be constant 25145b6b9d080ac56917337d73d8f1cd6374b27b05dChris Lattner /// folded, but discard the result. 25245b6b9d080ac56917337d73d8f1cd6374b27b05dChris Lattner bool isEvaluatable(ASTContext &Ctx) const; 253c44eec6dd29ee9415cbd38a35deff4c8b67abb6aAnders Carlsson 2546ddf4784a22b994b954ed74c6061d4603d474639Fariborz Jahanian /// HasSideEffects - This routine returns true for all those expressions 2556ddf4784a22b994b954ed74c6061d4603d474639Fariborz Jahanian /// which must be evaluated each time and must not be optimization away 2566ddf4784a22b994b954ed74c6061d4603d474639Fariborz Jahanian /// or evaluated at compile time. Example is a function call, volatile 2576ddf4784a22b994b954ed74c6061d4603d474639Fariborz Jahanian /// variable read. 258393c247fe025ccb5f914e37e948192ea86faef8cFariborz Jahanian bool HasSideEffects(ASTContext &Ctx) const; 259393c247fe025ccb5f914e37e948192ea86faef8cFariborz Jahanian 26051fe996231b1d7199f76e4005ff4c943d5deeecdAnders Carlsson /// EvaluateAsInt - Call Evaluate and return the folded integer. This 26151fe996231b1d7199f76e4005ff4c943d5deeecdAnders Carlsson /// must be called on an expression that constant folds to an integer. 26251fe996231b1d7199f76e4005ff4c943d5deeecdAnders Carlsson llvm::APSInt EvaluateAsInt(ASTContext &Ctx) const; 26351fe996231b1d7199f76e4005ff4c943d5deeecdAnders Carlsson 264b2f295c8050fb8c141bf2cf38eed0a56e99d0092Eli Friedman /// EvaluateAsLValue - Evaluate an expression to see if it's a lvalue 265b2f295c8050fb8c141bf2cf38eed0a56e99d0092Eli Friedman /// with link time known address. 2661b78276a75a5a0f496a82429c1ff9604d622a76dAnders Carlsson bool EvaluateAsLValue(EvalResult &Result, ASTContext &Ctx) const; 2671b78276a75a5a0f496a82429c1ff9604d622a76dAnders Carlsson 268b2f295c8050fb8c141bf2cf38eed0a56e99d0092Eli Friedman /// EvaluateAsAnyLValue - The same as EvaluateAsLValue, except that it 269b2f295c8050fb8c141bf2cf38eed0a56e99d0092Eli Friedman /// also succeeds on stack based, immutable address lvalues. 270b2f295c8050fb8c141bf2cf38eed0a56e99d0092Eli Friedman bool EvaluateAsAnyLValue(EvalResult &Result, ASTContext &Ctx) const; 271b2f295c8050fb8c141bf2cf38eed0a56e99d0092Eli Friedman 272ce94049b69f75b44c18584fe79cd238978b6b0d5Douglas Gregor /// \brief Enumeration used to describe how \c isNullPointerConstant() 273ce94049b69f75b44c18584fe79cd238978b6b0d5Douglas Gregor /// should cope with value-dependent expressions. 274ce94049b69f75b44c18584fe79cd238978b6b0d5Douglas Gregor enum NullPointerConstantValueDependence { 275ce94049b69f75b44c18584fe79cd238978b6b0d5Douglas Gregor /// \brief Specifies that the expression should never be value-dependent. 276ce94049b69f75b44c18584fe79cd238978b6b0d5Douglas Gregor NPC_NeverValueDependent = 0, 277ce94049b69f75b44c18584fe79cd238978b6b0d5Douglas Gregor 278ce94049b69f75b44c18584fe79cd238978b6b0d5Douglas Gregor /// \brief Specifies that a value-dependent expression of integral or 279ce94049b69f75b44c18584fe79cd238978b6b0d5Douglas Gregor /// dependent type should be considered a null pointer constant. 280ce94049b69f75b44c18584fe79cd238978b6b0d5Douglas Gregor NPC_ValueDependentIsNull, 281ce94049b69f75b44c18584fe79cd238978b6b0d5Douglas Gregor 282ce94049b69f75b44c18584fe79cd238978b6b0d5Douglas Gregor /// \brief Specifies that a value-dependent expression should be considered 283ce94049b69f75b44c18584fe79cd238978b6b0d5Douglas Gregor /// to never be a null pointer constant. 284ce94049b69f75b44c18584fe79cd238978b6b0d5Douglas Gregor NPC_ValueDependentIsNotNull 285ce94049b69f75b44c18584fe79cd238978b6b0d5Douglas Gregor }; 286ce94049b69f75b44c18584fe79cd238978b6b0d5Douglas Gregor 287efa9b3877ef298bcb792600ac33521827e1f7fafAnders Carlsson /// isNullPointerConstant - C99 6.3.2.3p3 - Return true if this is either an 288efa9b3877ef298bcb792600ac33521827e1f7fafAnders Carlsson /// integer constant expression with the value zero, or if this is one that is 289efa9b3877ef298bcb792600ac33521827e1f7fafAnders Carlsson /// cast to void*. 290ce94049b69f75b44c18584fe79cd238978b6b0d5Douglas Gregor bool isNullPointerConstant(ASTContext &Ctx, 291ce94049b69f75b44c18584fe79cd238978b6b0d5Douglas Gregor NullPointerConstantValueDependence NPC) const; 292efa9b3877ef298bcb792600ac33521827e1f7fafAnders Carlsson 29344baa8abba2a1552b6b50bf750a8750ab9da9f76Fariborz Jahanian /// isOBJCGCCandidate - Return true if this expression may be used in a read/ 2941eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /// write barrier. 295102e390bcb5a1fb1a8fdbc8505e6dfd905374bbdFariborz Jahanian bool isOBJCGCCandidate(ASTContext &Ctx) const; 2961eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2974e99a5fc3b203397a91136c6e695e405fb8fc606Ted Kremenek /// IgnoreParens - Ignore parentheses. If this Expr is a ParenExpr, return 2981eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /// its subexpression. If that subexpression is also a ParenExpr, 2994e99a5fc3b203397a91136c6e695e405fb8fc606Ted Kremenek /// then this method recursively returns its subexpression, and so forth. 3004e99a5fc3b203397a91136c6e695e405fb8fc606Ted Kremenek /// Otherwise, the method returns the current Expr. 3014e99a5fc3b203397a91136c6e695e405fb8fc606Ted Kremenek Expr* IgnoreParens(); 30256f349400c5932a196509c0480ff6f99a9a0b48fChris Lattner 30356f349400c5932a196509c0480ff6f99a9a0b48fChris Lattner /// IgnoreParenCasts - Ignore parentheses and casts. Strip off any ParenExpr 30427c8dc06f65d7abcf6a7e7f64a7960c9a150ca01Douglas Gregor /// or CastExprs, returning their operand. 30556f349400c5932a196509c0480ff6f99a9a0b48fChris Lattner Expr *IgnoreParenCasts(); 3061eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 307ecdd84147c0765caa999ddc22dde25b42712bb4dChris Lattner /// IgnoreParenNoopCasts - Ignore parentheses and casts that do not change the 308ecdd84147c0765caa999ddc22dde25b42712bb4dChris Lattner /// value (including ptr->int casts of the same size). Strip off any 309ecdd84147c0765caa999ddc22dde25b42712bb4dChris Lattner /// ParenExpr or CastExprs, returning their operand. 310ecdd84147c0765caa999ddc22dde25b42712bb4dChris Lattner Expr *IgnoreParenNoopCasts(ASTContext &Ctx); 3111eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3124e99a5fc3b203397a91136c6e695e405fb8fc606Ted Kremenek const Expr* IgnoreParens() const { 3134e99a5fc3b203397a91136c6e695e405fb8fc606Ted Kremenek return const_cast<Expr*>(this)->IgnoreParens(); 3144e99a5fc3b203397a91136c6e695e405fb8fc606Ted Kremenek } 31556f349400c5932a196509c0480ff6f99a9a0b48fChris Lattner const Expr *IgnoreParenCasts() const { 31656f349400c5932a196509c0480ff6f99a9a0b48fChris Lattner return const_cast<Expr*>(this)->IgnoreParenCasts(); 31756f349400c5932a196509c0480ff6f99a9a0b48fChris Lattner } 318ecdd84147c0765caa999ddc22dde25b42712bb4dChris Lattner const Expr *IgnoreParenNoopCasts(ASTContext &Ctx) const { 319ecdd84147c0765caa999ddc22dde25b42712bb4dChris Lattner return const_cast<Expr*>(this)->IgnoreParenNoopCasts(Ctx); 320ecdd84147c0765caa999ddc22dde25b42712bb4dChris Lattner } 3211eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 322898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor static bool hasAnyTypeDependentArguments(Expr** Exprs, unsigned NumExprs); 323898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor static bool hasAnyValueDependentArguments(Expr** Exprs, unsigned NumExprs); 324898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor 3251eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 3265f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return T->getStmtClass() >= firstExprConstant && 3271eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump T->getStmtClass() <= lastExprConstant; 3285f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 3295f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const Expr *) { return true; } 3305f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 3315f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 3321eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3335549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek//===----------------------------------------------------------------------===// 3345f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// Primary Expressions. 3355f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer//===----------------------------------------------------------------------===// 3365f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 337a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor/// \brief Represents the qualifier that may precede a C++ name, e.g., the 338a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor/// "std::" in "std::sort". 339a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregorstruct NameQualifier { 340a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// \brief The nested name specifier. 341a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor NestedNameSpecifier *NNS; 342a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor 343a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// \brief The source range covered by the nested name specifier. 344a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor SourceRange Range; 345a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor}; 346a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor 347a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor/// \brief Represents an explicit template argument list in C++, e.g., 348a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor/// the "<int>" in "sort<int>". 349a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregorstruct ExplicitTemplateArgumentList { 350a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// \brief The source location of the left angle bracket ('<'); 351a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor SourceLocation LAngleLoc; 352a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor 353a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// \brief The source location of the right angle bracket ('>'); 354a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor SourceLocation RAngleLoc; 355a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor 356a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// \brief The number of template arguments in TemplateArgs. 357a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// The actual template arguments (if any) are stored after the 358a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// ExplicitTemplateArgumentList structure. 359a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor unsigned NumTemplateArgs; 360a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor 361a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// \brief Retrieve the template arguments 362833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall TemplateArgumentLoc *getTemplateArgs() { 363833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall return reinterpret_cast<TemplateArgumentLoc *> (this + 1); 364a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor } 365a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor 366a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// \brief Retrieve the template arguments 367833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall const TemplateArgumentLoc *getTemplateArgs() const { 368833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall return reinterpret_cast<const TemplateArgumentLoc *> (this + 1); 369a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor } 370d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall 371d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall void initializeFrom(const TemplateArgumentListInfo &List); 372d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall void copyInto(TemplateArgumentListInfo &List) const; 373d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall static std::size_t sizeFor(const TemplateArgumentListInfo &List); 374a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor}; 375a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor 3765f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// DeclRefExpr - [C99 6.5.1p2] - A reference to a declared variable, function, 3775f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// enum, etc. 3785f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass DeclRefExpr : public Expr { 379a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor enum { 380a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor // Flag on DecoratedD that specifies when this declaration reference 381a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor // expression has a C++ nested-name-specifier. 382a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor HasQualifierFlag = 0x01, 383a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor // Flag on DecoratedD that specifies when this declaration reference 384a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor // expression has an explicit C++ template argument list. 385a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor HasExplicitTemplateArgumentListFlag = 0x02 386a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor }; 387a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor 388a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor // DecoratedD - The declaration that we are referencing, plus two bits to 389a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor // indicate whether (1) the declaration's name was explicitly qualified and 390a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor // (2) the declaration's name was followed by an explicit template 391a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor // argument list. 392dbd872f273a8dbf22e089b3def6c09f0a460965dJohn McCall llvm::PointerIntPair<ValueDecl *, 2> DecoratedD; 393a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor 394a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor // Loc - The location of the declaration name itself. 3955f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation Loc; 3969e922b1663ecb95dc7eee03002fd66ed18fb3192Argyrios Kyrtzidis 397a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// \brief Retrieve the qualifier that preceded the declaration name, if any. 398a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor NameQualifier *getNameQualifier() { 3992cf719c3c3d805f630dfc6b1255e52647820888eSebastian Redl if ((DecoratedD.getInt() & HasQualifierFlag) == 0) 400a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor return 0; 401a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor 402a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor return reinterpret_cast<NameQualifier *> (this + 1); 403a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor } 404a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor 405a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// \brief Retrieve the qualifier that preceded the member name, if any. 406a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor const NameQualifier *getNameQualifier() const { 407a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor return const_cast<DeclRefExpr *>(this)->getNameQualifier(); 408a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor } 409a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor 410a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// \brief Retrieve the explicit template argument list that followed the 411a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// member template name, if any. 412a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor ExplicitTemplateArgumentList *getExplicitTemplateArgumentList() { 4132cf719c3c3d805f630dfc6b1255e52647820888eSebastian Redl if ((DecoratedD.getInt() & HasExplicitTemplateArgumentListFlag) == 0) 414a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor return 0; 415a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor 4162cf719c3c3d805f630dfc6b1255e52647820888eSebastian Redl if ((DecoratedD.getInt() & HasQualifierFlag) == 0) 417a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor return reinterpret_cast<ExplicitTemplateArgumentList *>(this + 1); 418a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor 419a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor return reinterpret_cast<ExplicitTemplateArgumentList *>( 420a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor getNameQualifier() + 1); 421a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor } 422a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor 423a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// \brief Retrieve the explicit template argument list that followed the 424a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// member template name, if any. 425a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor const ExplicitTemplateArgumentList *getExplicitTemplateArgumentList() const { 426a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor return const_cast<DeclRefExpr *>(this)->getExplicitTemplateArgumentList(); 427a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor } 428a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor 429a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor DeclRefExpr(NestedNameSpecifier *Qualifier, SourceRange QualifierRange, 430dbd872f273a8dbf22e089b3def6c09f0a460965dJohn McCall ValueDecl *D, SourceLocation NameLoc, 431d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall const TemplateArgumentListInfo *TemplateArgs, 4320da76df9218d7c27b471b0a4d83a5b29fe24e5b4Douglas Gregor QualType T); 433a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor 4349e922b1663ecb95dc7eee03002fd66ed18fb3192Argyrios Kyrtzidisprotected: 4350da76df9218d7c27b471b0a4d83a5b29fe24e5b4Douglas Gregor /// \brief Computes the type- and value-dependence flags for this 4360da76df9218d7c27b471b0a4d83a5b29fe24e5b4Douglas Gregor /// declaration reference expression. 4370da76df9218d7c27b471b0a4d83a5b29fe24e5b4Douglas Gregor void computeDependence(); 4389e922b1663ecb95dc7eee03002fd66ed18fb3192Argyrios Kyrtzidis 439dbd872f273a8dbf22e089b3def6c09f0a460965dJohn McCall DeclRefExpr(StmtClass SC, ValueDecl *d, QualType t, SourceLocation l) : 4400da76df9218d7c27b471b0a4d83a5b29fe24e5b4Douglas Gregor Expr(SC, t, false, false), DecoratedD(d, 0), Loc(l) { 4410da76df9218d7c27b471b0a4d83a5b29fe24e5b4Douglas Gregor computeDependence(); 4420da76df9218d7c27b471b0a4d83a5b29fe24e5b4Douglas Gregor } 4431a49af9681c350fef58e677f85ccb9a77e8e9d0aDouglas Gregor 4445f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 445dbd872f273a8dbf22e089b3def6c09f0a460965dJohn McCall DeclRefExpr(ValueDecl *d, QualType t, SourceLocation l) : 4460da76df9218d7c27b471b0a4d83a5b29fe24e5b4Douglas Gregor Expr(DeclRefExprClass, t, false, false), DecoratedD(d, 0), Loc(l) { 4470da76df9218d7c27b471b0a4d83a5b29fe24e5b4Douglas Gregor computeDependence(); 4480da76df9218d7c27b471b0a4d83a5b29fe24e5b4Douglas Gregor } 4491eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4500b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor /// \brief Construct an empty declaration reference expression. 4511eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump explicit DeclRefExpr(EmptyShell Empty) 4520b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor : Expr(DeclRefExprClass, Empty) { } 4530b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor 454a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor static DeclRefExpr *Create(ASTContext &Context, 455a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor NestedNameSpecifier *Qualifier, 456a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor SourceRange QualifierRange, 457dbd872f273a8dbf22e089b3def6c09f0a460965dJohn McCall ValueDecl *D, 458a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor SourceLocation NameLoc, 4590da76df9218d7c27b471b0a4d83a5b29fe24e5b4Douglas Gregor QualType T, 4600da76df9218d7c27b471b0a4d83a5b29fe24e5b4Douglas Gregor const TemplateArgumentListInfo *TemplateArgs = 0); 461a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor 462dbd872f273a8dbf22e089b3def6c09f0a460965dJohn McCall ValueDecl *getDecl() { return DecoratedD.getPointer(); } 463dbd872f273a8dbf22e089b3def6c09f0a460965dJohn McCall const ValueDecl *getDecl() const { return DecoratedD.getPointer(); } 464dbd872f273a8dbf22e089b3def6c09f0a460965dJohn McCall void setDecl(ValueDecl *NewD) { DecoratedD.setPointer(NewD); } 465904eed3f6148758d39a2d3c88f3133274460d645Douglas Gregor 4669e922b1663ecb95dc7eee03002fd66ed18fb3192Argyrios Kyrtzidis SourceLocation getLocation() const { return Loc; } 4670b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor void setLocation(SourceLocation L) { Loc = L; } 468a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor virtual SourceRange getSourceRange() const; 4691eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 470a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// \brief Determine whether this declaration reference was preceded by a 471a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// C++ nested-name-specifier, e.g., \c N::foo. 472a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor bool hasQualifier() const { return DecoratedD.getInt() & HasQualifierFlag; } 473a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor 474a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// \brief If the name was qualified, retrieves the source range of 475a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// the nested-name-specifier that precedes the name. Otherwise, 476a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// returns an empty source range. 477a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor SourceRange getQualifierRange() const { 478a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor if (!hasQualifier()) 479a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor return SourceRange(); 480a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor 481a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor return getNameQualifier()->Range; 482a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor } 483a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor 484a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// \brief If the name was qualified, retrieves the nested-name-specifier 485a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// that precedes the name. Otherwise, returns NULL. 486a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor NestedNameSpecifier *getQualifier() const { 487a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor if (!hasQualifier()) 488a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor return 0; 489a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor 490a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor return getNameQualifier()->NNS; 491a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor } 492a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor 493a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// \brief Determines whether this member expression actually had a C++ 494a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// template argument list explicitly specified, e.g., x.f<int>. 495a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor bool hasExplicitTemplateArgumentList() const { 496a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor return DecoratedD.getInt() & HasExplicitTemplateArgumentListFlag; 497a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor } 498d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall 499d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall /// \brief Copies the template arguments (if present) into the given 500d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall /// structure. 501d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall void copyTemplateArgumentsInto(TemplateArgumentListInfo &List) const { 502d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall if (hasExplicitTemplateArgumentList()) 503d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall getExplicitTemplateArgumentList()->copyInto(List); 504d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall } 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) { 54399e9b4d172f6877e6ba5ebe75bb8238721f5e01cDouglas Gregor return T->getStmtClass() == DeclRefExprClass; 5445f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 5455f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const DeclRefExpr *) { return true; } 5461eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 54777ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek // Iterators 54877ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_begin(); 54977ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_end(); 5505f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 5515f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 552d9f6910f4ef37c0e8eeee2a01287d9572c3176efChris Lattner/// PredefinedExpr - [C99 6.4.2.2] - A predefined identifier such as __func__. 553d9f6910f4ef37c0e8eeee2a01287d9572c3176efChris Lattnerclass PredefinedExpr : public Expr { 554227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlssonpublic: 555227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson enum IdentType { 556227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson Func, 557227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson Function, 558cd9b46e5442a3ef17f83f75177d8545cb5b3e2b9Douglas Gregor PrettyFunction 559227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson }; 5601eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 561227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlssonprivate: 562227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson SourceLocation Loc; 563227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson IdentType Type; 564227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlssonpublic: 5651eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump PredefinedExpr(SourceLocation l, QualType type, IdentType IT) 566773f3973cf5e2b6b8788e895967dcb3c1e6ffe79Anders Carlsson : Expr(PredefinedExprClass, type, type->isDependentType(), 567773f3973cf5e2b6b8788e895967dcb3c1e6ffe79Anders Carlsson type->isDependentType()), Loc(l), Type(IT) {} 5681eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 56917fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor /// \brief Construct an empty predefined expression. 5701eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump explicit PredefinedExpr(EmptyShell Empty) 57117fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor : Expr(PredefinedExprClass, Empty) { } 57217fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor 573227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson IdentType getIdentType() const { return Type; } 57417fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor void setIdentType(IdentType IT) { Type = IT; } 57517fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor 57617fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor SourceLocation getLocation() const { return Loc; } 57717fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor void setLocation(SourceLocation L) { Loc = L; } 57817fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor 5793a082d81006e7a2e01a6e431a22e21c78490ff8fAnders Carlsson static std::string ComputeName(ASTContext &Context, IdentType IT, 5803a082d81006e7a2e01a6e431a22e21c78490ff8fAnders Carlsson const Decl *CurrentDecl); 5813a082d81006e7a2e01a6e431a22e21c78490ff8fAnders Carlsson 582227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson virtual SourceRange getSourceRange() const { return SourceRange(Loc); } 583227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson 5841eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 5851eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == PredefinedExprClass; 586227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson } 587d9f6910f4ef37c0e8eeee2a01287d9572c3176efChris Lattner static bool classof(const PredefinedExpr *) { return true; } 5881eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 58977ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek // Iterators 59077ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_begin(); 59177ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_end(); 592227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson}; 593227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson 5945f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass IntegerLiteral : public Expr { 5955f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::APInt Value; 5965f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation Loc; 5975f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 5981eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // type should be IntTy, LongTy, LongLongTy, UnsignedIntTy, UnsignedLongTy, 5995f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // or UnsignedLongLongTy 6005f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer IntegerLiteral(const llvm::APInt &V, QualType type, SourceLocation l) 6015f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer : Expr(IntegerLiteralClass, type), Value(V), Loc(l) { 6025f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer assert(type->isIntegerType() && "Illegal type in IntegerLiteral"); 6035f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 604a135fb43eb94524a6529768596a4533eed9aa70dAnders Carlsson 6050b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor /// \brief Construct an empty integer literal. 6061eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump explicit IntegerLiteral(EmptyShell Empty) 6070b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor : Expr(IntegerLiteralClass, Empty) { } 6080b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor 6095f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer const llvm::APInt &getValue() const { return Value; } 6105f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer virtual SourceRange getSourceRange() const { return SourceRange(Loc); } 6115f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 612313a81dd820c9b2c0203bdcd974c781a81e4f0cfDouglas Gregor /// \brief Retrieve the location of the literal. 613313a81dd820c9b2c0203bdcd974c781a81e4f0cfDouglas Gregor SourceLocation getLocation() const { return Loc; } 614313a81dd820c9b2c0203bdcd974c781a81e4f0cfDouglas Gregor 6150b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor void setValue(const llvm::APInt &Val) { Value = Val; } 6160b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor void setLocation(SourceLocation Location) { Loc = Location; } 6170b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor 6181eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 6191eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == IntegerLiteralClass; 6205f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 6215f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const IntegerLiteral *) { return true; } 6221eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 62377ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek // Iterators 62477ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_begin(); 62577ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_end(); 6265f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 6275f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 6285f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass CharacterLiteral : public Expr { 6295f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer unsigned Value; 6305f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation Loc; 631c250aae4f645833aed3a6321bc8598f7330dce8dChris Lattner bool IsWide; 6325f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 6335f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // type should be IntTy 634c250aae4f645833aed3a6321bc8598f7330dce8dChris Lattner CharacterLiteral(unsigned value, bool iswide, QualType type, SourceLocation l) 635c250aae4f645833aed3a6321bc8598f7330dce8dChris Lattner : Expr(CharacterLiteralClass, type), Value(value), Loc(l), IsWide(iswide) { 6365f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 6370b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor 6380b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor /// \brief Construct an empty character literal. 6390b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor CharacterLiteral(EmptyShell Empty) : Expr(CharacterLiteralClass, Empty) { } 6400b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor 641018d8e0596dd57401eeddcf11ac84ff0a065fbbeChris Lattner SourceLocation getLocation() const { return Loc; } 642c250aae4f645833aed3a6321bc8598f7330dce8dChris Lattner bool isWide() const { return IsWide; } 6431eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 6445f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer virtual SourceRange getSourceRange() const { return SourceRange(Loc); } 6451eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 6465f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer unsigned getValue() const { return Value; } 6475f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 6480b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor void setLocation(SourceLocation Location) { Loc = Location; } 6490b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor void setWide(bool W) { IsWide = W; } 6500b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor void setValue(unsigned Val) { Value = Val; } 6510b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor 6521eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 6531eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == CharacterLiteralClass; 6545f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 6555f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const CharacterLiteral *) { return true; } 65677ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek 65777ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek // Iterators 65877ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_begin(); 65977ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_end(); 6605f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 6615f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 6625f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass FloatingLiteral : public Expr { 663525a05093a4816af961fe2bc6b8a81c17e2e26c2Chris Lattner llvm::APFloat Value; 664720c4ec57b6110873cd533ad434853a27e7c3f4aTed Kremenek bool IsExact : 1; 6655f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation Loc; 6665f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 6671eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump FloatingLiteral(const llvm::APFloat &V, bool isexact, 668720c4ec57b6110873cd533ad434853a27e7c3f4aTed Kremenek QualType Type, SourceLocation L) 6691eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump : Expr(FloatingLiteralClass, Type), Value(V), IsExact(isexact), Loc(L) {} 6705f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 67117fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor /// \brief Construct an empty floating-point literal. 6721eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump explicit FloatingLiteral(EmptyShell Empty) 67317fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor : Expr(FloatingLiteralClass, Empty), Value(0.0) { } 67417fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor 675c9bec4bfea9090a08dd83a7b213f0c8adf8d78ecChris Lattner const llvm::APFloat &getValue() const { return Value; } 67617fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor void setValue(const llvm::APFloat &Val) { Value = Val; } 67717fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor 678720c4ec57b6110873cd533ad434853a27e7c3f4aTed Kremenek bool isExact() const { return IsExact; } 67917fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor void setExact(bool E) { IsExact = E; } 680c9bec4bfea9090a08dd83a7b213f0c8adf8d78ecChris Lattner 681da8249e57f3badecf925571881fe57243935c6c1Chris Lattner /// getValueAsApproximateDouble - This returns the value as an inaccurate 682da8249e57f3badecf925571881fe57243935c6c1Chris Lattner /// double. Note that this may cause loss of precision, but is useful for 683da8249e57f3badecf925571881fe57243935c6c1Chris Lattner /// debugging dumps, etc. 684da8249e57f3badecf925571881fe57243935c6c1Chris Lattner double getValueAsApproximateDouble() const; 6851eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 68617fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor SourceLocation getLocation() const { return Loc; } 68717fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor void setLocation(SourceLocation L) { Loc = L; } 68817fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor 6895f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer virtual SourceRange getSourceRange() const { return SourceRange(Loc); } 6905f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 6911eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 6921eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == FloatingLiteralClass; 6935f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 6945f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const FloatingLiteral *) { return true; } 6951eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 69677ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek // Iterators 69777ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_begin(); 69877ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_end(); 6995f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 7005f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 7015d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner/// ImaginaryLiteral - We support imaginary integer and floating point literals, 7025d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner/// like "1.0i". We represent these as a wrapper around FloatingLiteral and 7035d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner/// IntegerLiteral classes. Instances of this class always have a Complex type 7045d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner/// whose element type matches the subexpression. 7055d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner/// 7065d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattnerclass ImaginaryLiteral : public Expr { 7075549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Stmt *Val; 7085d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattnerpublic: 7095d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner ImaginaryLiteral(Expr *val, QualType Ty) 7105d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner : Expr(ImaginaryLiteralClass, Ty), Val(val) {} 7111eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 712cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor /// \brief Build an empty imaginary literal. 7131eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump explicit ImaginaryLiteral(EmptyShell Empty) 714cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor : Expr(ImaginaryLiteralClass, Empty) { } 715cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor 7165549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek const Expr *getSubExpr() const { return cast<Expr>(Val); } 7175549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getSubExpr() { return cast<Expr>(Val); } 718cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor void setSubExpr(Expr *E) { Val = E; } 719cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor 7205d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner virtual SourceRange getSourceRange() const { return Val->getSourceRange(); } 7211eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 7221eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == ImaginaryLiteralClass; 7235d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner } 7245d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner static bool classof(const ImaginaryLiteral *) { return true; } 7251eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 7265d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner // Iterators 7275d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner virtual child_iterator child_begin(); 7285d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner virtual child_iterator child_end(); 7295d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner}; 7305d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner 731e6a82b2c29ad05534841e5f8fd033fb17b6f61e2Ted Kremenek/// StringLiteral - This represents a string literal expression, e.g. "foo" 732e6a82b2c29ad05534841e5f8fd033fb17b6f61e2Ted Kremenek/// or L"bar" (wide strings). The actual string is returned by getStrData() 733e6a82b2c29ad05534841e5f8fd033fb17b6f61e2Ted Kremenek/// is NOT null-terminated, and the length of the string is determined by 734a7ad98ff0919d6a24ea7c46634ea29bea551c1a0Chris Lattner/// calling getByteLength(). The C type for a string is always a 735c4a09c189981b4561428e4b56fd250718e2717bbChris Lattner/// ConstantArrayType. In C++, the char type is const qualified, in C it is 736c4a09c189981b4561428e4b56fd250718e2717bbChris Lattner/// not. 737690398188ea5b428f06aa13c7d4ce6eb741ad4f9Chris Lattner/// 738690398188ea5b428f06aa13c7d4ce6eb741ad4f9Chris Lattner/// Note that strings in C can be formed by concatenation of multiple string 7398bea7c0ee44c71c817de7dc2be932b73bec90c9fChris Lattner/// literal pptokens in translation phase #6. This keeps track of the locations 740690398188ea5b428f06aa13c7d4ce6eb741ad4f9Chris Lattner/// of each of these pieces. 741c4a09c189981b4561428e4b56fd250718e2717bbChris Lattner/// 742c4a09c189981b4561428e4b56fd250718e2717bbChris Lattner/// Strings in C can also be truncated and extended by assigning into arrays, 743c4a09c189981b4561428e4b56fd250718e2717bbChris Lattner/// e.g. with constructs like: 744c4a09c189981b4561428e4b56fd250718e2717bbChris Lattner/// char X[2] = "foobar"; 745c4a09c189981b4561428e4b56fd250718e2717bbChris Lattner/// In this case, getByteLength() will return 6, but the string literal will 746c4a09c189981b4561428e4b56fd250718e2717bbChris Lattner/// have type "char[2]". 7475f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass StringLiteral : public Expr { 7485f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer const char *StrData; 7495f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer unsigned ByteLength; 7505f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool IsWide; 751726e168dc09fb23f53c7b004f8e919421ee91806Chris Lattner unsigned NumConcatenated; 752726e168dc09fb23f53c7b004f8e919421ee91806Chris Lattner SourceLocation TokLocs[1]; 7532085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner 7542085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner StringLiteral(QualType Ty) : Expr(StringLiteralClass, Ty) {} 7551eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 75642602bb40aefcc2751d4078ba88aacf4d965c9bdDouglas Gregorprotected: 75742602bb40aefcc2751d4078ba88aacf4d965c9bdDouglas Gregor virtual void DoDestroy(ASTContext &C); 75842602bb40aefcc2751d4078ba88aacf4d965c9bdDouglas Gregor 7595f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 7602085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner /// This is the "fully general" constructor that allows representation of 7612085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner /// strings formed from multiple concatenated tokens. 7622085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner static StringLiteral *Create(ASTContext &C, const char *StrData, 7632085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner unsigned ByteLength, bool Wide, QualType Ty, 764a135fb43eb94524a6529768596a4533eed9aa70dAnders Carlsson const SourceLocation *Loc, unsigned NumStrs); 7652085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner 7662085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner /// Simple constructor for string literals made from one token. 7671eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static StringLiteral *Create(ASTContext &C, const char *StrData, 7682085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner unsigned ByteLength, 7692085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner bool Wide, QualType Ty, SourceLocation Loc) { 7702085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner return Create(C, StrData, ByteLength, Wide, Ty, &Loc, 1); 7712085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner } 772a135fb43eb94524a6529768596a4533eed9aa70dAnders Carlsson 773673ecd6a4a9f7c12fb6f76f84f654dbdcdc89e76Douglas Gregor /// \brief Construct an empty string literal. 774673ecd6a4a9f7c12fb6f76f84f654dbdcdc89e76Douglas Gregor static StringLiteral *CreateEmpty(ASTContext &C, unsigned NumStrs); 775673ecd6a4a9f7c12fb6f76f84f654dbdcdc89e76Douglas Gregor 776b648023da23e8b227cdda57a241db4c6f368726bDaniel Dunbar llvm::StringRef getString() const { 777b648023da23e8b227cdda57a241db4c6f368726bDaniel Dunbar return llvm::StringRef(StrData, ByteLength); 778b648023da23e8b227cdda57a241db4c6f368726bDaniel Dunbar } 779b648023da23e8b227cdda57a241db4c6f368726bDaniel Dunbar // FIXME: These are deprecated, replace with StringRef. 7805f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer const char *getStrData() const { return StrData; } 7815f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer unsigned getByteLength() const { return ByteLength; } 782673ecd6a4a9f7c12fb6f76f84f654dbdcdc89e76Douglas Gregor 783673ecd6a4a9f7c12fb6f76f84f654dbdcdc89e76Douglas Gregor /// \brief Sets the string data to the given string data. 784b648023da23e8b227cdda57a241db4c6f368726bDaniel Dunbar void setString(ASTContext &C, llvm::StringRef Str); 785673ecd6a4a9f7c12fb6f76f84f654dbdcdc89e76Douglas Gregor 7865f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool isWide() const { return IsWide; } 787673ecd6a4a9f7c12fb6f76f84f654dbdcdc89e76Douglas Gregor void setWide(bool W) { IsWide = W; } 788673ecd6a4a9f7c12fb6f76f84f654dbdcdc89e76Douglas Gregor 7898d4141f83d9de379547cf05bd75d4c6cf894b189Steve Naroff bool containsNonAsciiOrNull() const { 790b648023da23e8b227cdda57a241db4c6f368726bDaniel Dunbar llvm::StringRef Str = getString(); 791b648023da23e8b227cdda57a241db4c6f368726bDaniel Dunbar for (unsigned i = 0, e = Str.size(); i != e; ++i) 792b648023da23e8b227cdda57a241db4c6f368726bDaniel Dunbar if (!isascii(Str[i]) || !Str[i]) 79333fdb738a6c125f4c788733897021b7c1a062b0cSteve Naroff return true; 79433fdb738a6c125f4c788733897021b7c1a062b0cSteve Naroff return false; 79533fdb738a6c125f4c788733897021b7c1a062b0cSteve Naroff } 796726e168dc09fb23f53c7b004f8e919421ee91806Chris Lattner /// getNumConcatenated - Get the number of string literal tokens that were 797726e168dc09fb23f53c7b004f8e919421ee91806Chris Lattner /// concatenated in translation phase #6 to form this string literal. 798726e168dc09fb23f53c7b004f8e919421ee91806Chris Lattner unsigned getNumConcatenated() const { return NumConcatenated; } 7991eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 800726e168dc09fb23f53c7b004f8e919421ee91806Chris Lattner SourceLocation getStrTokenLoc(unsigned TokNum) const { 801726e168dc09fb23f53c7b004f8e919421ee91806Chris Lattner assert(TokNum < NumConcatenated && "Invalid tok number"); 802726e168dc09fb23f53c7b004f8e919421ee91806Chris Lattner return TokLocs[TokNum]; 803726e168dc09fb23f53c7b004f8e919421ee91806Chris Lattner } 8041eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump void setStrTokenLoc(unsigned TokNum, SourceLocation L) { 805673ecd6a4a9f7c12fb6f76f84f654dbdcdc89e76Douglas Gregor assert(TokNum < NumConcatenated && "Invalid tok number"); 806673ecd6a4a9f7c12fb6f76f84f654dbdcdc89e76Douglas Gregor TokLocs[TokNum] = L; 807673ecd6a4a9f7c12fb6f76f84f654dbdcdc89e76Douglas Gregor } 808673ecd6a4a9f7c12fb6f76f84f654dbdcdc89e76Douglas Gregor 809b137299ce5bb6c36fbba651858600857fda4dd50Chris Lattner typedef const SourceLocation *tokloc_iterator; 810b137299ce5bb6c36fbba651858600857fda4dd50Chris Lattner tokloc_iterator tokloc_begin() const { return TokLocs; } 811b137299ce5bb6c36fbba651858600857fda4dd50Chris Lattner tokloc_iterator tokloc_end() const { return TokLocs+NumConcatenated; } 8125f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 8131eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump virtual SourceRange getSourceRange() const { 8141eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return SourceRange(TokLocs[0], TokLocs[NumConcatenated-1]); 8155f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 8161eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 8171eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == StringLiteralClass; 8185f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 8195f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const StringLiteral *) { return true; } 8201eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 82177ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek // Iterators 82277ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_begin(); 82377ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_end(); 8245f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 8255f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 8265f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// ParenExpr - This represents a parethesized expression, e.g. "(1)". This 8275f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// AST node is only formed if full location information is requested. 8285f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass ParenExpr : public Expr { 8295f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation L, R; 8305549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Stmt *Val; 8315f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 8325f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ParenExpr(SourceLocation l, SourceLocation r, Expr *val) 833898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor : Expr(ParenExprClass, val->getType(), 8341eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump val->isTypeDependent(), val->isValueDependent()), 835898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor L(l), R(r), Val(val) {} 8361eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 837c04db4feefa2b0dbbc6876cb4eeeee108aa6791dDouglas Gregor /// \brief Construct an empty parenthesized expression. 8381eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump explicit ParenExpr(EmptyShell Empty) 839c04db4feefa2b0dbbc6876cb4eeeee108aa6791dDouglas Gregor : Expr(ParenExprClass, Empty) { } 840c04db4feefa2b0dbbc6876cb4eeeee108aa6791dDouglas Gregor 8415549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek const Expr *getSubExpr() const { return cast<Expr>(Val); } 8425549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getSubExpr() { return cast<Expr>(Val); } 843c04db4feefa2b0dbbc6876cb4eeeee108aa6791dDouglas Gregor void setSubExpr(Expr *E) { Val = E; } 844c04db4feefa2b0dbbc6876cb4eeeee108aa6791dDouglas Gregor 845866b5c03e3b9c01cf496ad97b85a05afc917345bTed Kremenek virtual SourceRange getSourceRange() const { return SourceRange(L, R); } 8465f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 847313a81dd820c9b2c0203bdcd974c781a81e4f0cfDouglas Gregor /// \brief Get the location of the left parentheses '('. 848313a81dd820c9b2c0203bdcd974c781a81e4f0cfDouglas Gregor SourceLocation getLParen() const { return L; } 849c04db4feefa2b0dbbc6876cb4eeeee108aa6791dDouglas Gregor void setLParen(SourceLocation Loc) { L = Loc; } 850313a81dd820c9b2c0203bdcd974c781a81e4f0cfDouglas Gregor 851313a81dd820c9b2c0203bdcd974c781a81e4f0cfDouglas Gregor /// \brief Get the location of the right parentheses ')'. 852313a81dd820c9b2c0203bdcd974c781a81e4f0cfDouglas Gregor SourceLocation getRParen() const { return R; } 853c04db4feefa2b0dbbc6876cb4eeeee108aa6791dDouglas Gregor void setRParen(SourceLocation Loc) { R = Loc; } 854313a81dd820c9b2c0203bdcd974c781a81e4f0cfDouglas Gregor 8551eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 8561eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == ParenExprClass; 8575f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 8585f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const ParenExpr *) { return true; } 8591eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 86077ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek // Iterators 86177ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_begin(); 86277ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_end(); 8635f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 8645f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 8655f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 8660518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl/// UnaryOperator - This represents the unary-expression's (except sizeof and 8670518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl/// alignof), the postinc/postdec operators from postfix-expression, and various 8685f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// extensions. 869dbb36971c68ea944ac4b1fbe2d97fe7cca3b20acChris Lattner/// 870dbb36971c68ea944ac4b1fbe2d97fe7cca3b20acChris Lattner/// Notes on various nodes: 871dbb36971c68ea944ac4b1fbe2d97fe7cca3b20acChris Lattner/// 872dbb36971c68ea944ac4b1fbe2d97fe7cca3b20acChris Lattner/// Real/Imag - These return the real/imag part of a complex operand. If 873dbb36971c68ea944ac4b1fbe2d97fe7cca3b20acChris Lattner/// applied to a non-complex value, the former returns its operand and the 874dbb36971c68ea944ac4b1fbe2d97fe7cca3b20acChris Lattner/// later returns zero in the type of the operand. 875dbb36971c68ea944ac4b1fbe2d97fe7cca3b20acChris Lattner/// 87673d0d4fac161ed12926e010dcf8b448a8de6a2ecChris Lattner/// __builtin_offsetof(type, a.b[10]) is represented as a unary operator whose 8771eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// subexpression is a compound literal with the various MemberExpr and 87873d0d4fac161ed12926e010dcf8b448a8de6a2ecChris Lattner/// ArraySubscriptExpr's applied to it. 87973d0d4fac161ed12926e010dcf8b448a8de6a2ecChris Lattner/// 8805f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass UnaryOperator : public Expr { 8815f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 88213d130c3d225cdb5b1e6d9e86cea12eea718c707Chris Lattner // Note that additions to this should also update the StmtVisitor class. 8835f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer enum Opcode { 8845f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer PostInc, PostDec, // [C99 6.5.2.4] Postfix increment and decrement operators 8855f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer PreInc, PreDec, // [C99 6.5.3.1] Prefix increment and decrement operators. 8865f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer AddrOf, Deref, // [C99 6.5.3.2] Address and indirection operators. 8875f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Plus, Minus, // [C99 6.5.3.3] Unary arithmetic operators. 8885f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Not, LNot, // [C99 6.5.3.3] Unary arithmetic operators. 8895f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Real, Imag, // "__real expr"/"__imag expr" Extension. 89073d0d4fac161ed12926e010dcf8b448a8de6a2ecChris Lattner Extension, // __extension__ marker. 89173d0d4fac161ed12926e010dcf8b448a8de6a2ecChris Lattner OffsetOf // __builtin_offsetof 8925f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer }; 8935f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerprivate: 8945549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Stmt *Val; 8955f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Opcode Opc; 8965f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation Loc; 8971eb4433ac451dc16f4133a88af2d002ac26c58efMike Stumppublic: 8985f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 8995f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer UnaryOperator(Expr *input, Opcode opc, QualType type, SourceLocation l) 9009103bb27f4eefa0e0d7935387750e3aca24abc49Douglas Gregor : Expr(UnaryOperatorClass, type, 9019103bb27f4eefa0e0d7935387750e3aca24abc49Douglas Gregor input->isTypeDependent() && opc != OffsetOf, 9021eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump input->isValueDependent()), 9039103bb27f4eefa0e0d7935387750e3aca24abc49Douglas Gregor Val(input), Opc(opc), Loc(l) {} 9045f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 9050b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor /// \brief Build an empty unary operator. 9061eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump explicit UnaryOperator(EmptyShell Empty) 9070b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor : Expr(UnaryOperatorClass, Empty), Opc(AddrOf) { } 9080b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor 9095f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Opcode getOpcode() const { return Opc; } 9100b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor void setOpcode(Opcode O) { Opc = O; } 9110b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor 9125549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getSubExpr() const { return cast<Expr>(Val); } 9130b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor void setSubExpr(Expr *E) { Val = E; } 9140b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor 9155f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// getOperatorLoc - Return the location of the operator. 9165f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation getOperatorLoc() const { return Loc; } 9170b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor void setOperatorLoc(SourceLocation L) { Loc = L; } 9180b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor 9195f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// isPostfix - Return true if this is a postfix operation, like x++. 9202085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner static bool isPostfix(Opcode Op) { 9212085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner return Op == PostInc || Op == PostDec; 9222085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner } 9235f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 9245a56ac30d04e8f0431a08980885662a47a6308aaTed Kremenek /// isPostfix - Return true if this is a prefix operation, like --x. 9252085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner static bool isPrefix(Opcode Op) { 9262085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner return Op == PreInc || Op == PreDec; 9272085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner } 9285a56ac30d04e8f0431a08980885662a47a6308aaTed Kremenek 9295a56ac30d04e8f0431a08980885662a47a6308aaTed Kremenek bool isPrefix() const { return isPrefix(Opc); } 9305f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool isPostfix() const { return isPostfix(Opc); } 9315d826b82936beb2c32dd02460332ba8035192c65Ted Kremenek bool isIncrementOp() const {return Opc==PreInc || Opc==PostInc; } 9325f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool isIncrementDecrementOp() const { return Opc>=PostInc && Opc<=PreDec; } 9335a1deb8d9c0722beae28d693fa137bbb942bd11fAnders Carlsson bool isOffsetOfOp() const { return Opc == OffsetOf; } 9345f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool isArithmeticOp(Opcode Op) { return Op >= Plus && Op <= LNot; } 9351eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump bool isArithmeticOp() const { return isArithmeticOp(Opc); } 9361eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 9375f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// getOpcodeStr - Turn an Opcode enum value into the punctuation char it 9385f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// corresponds to, e.g. "sizeof" or "[pre]++" 9395f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static const char *getOpcodeStr(Opcode Op); 9405f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 941bc736fceca6f0bca31d16003a7587857190408fbDouglas Gregor /// \brief Retrieve the unary opcode that corresponds to the given 942bc736fceca6f0bca31d16003a7587857190408fbDouglas Gregor /// overloaded operator. 943bc736fceca6f0bca31d16003a7587857190408fbDouglas Gregor static Opcode getOverloadedOpcode(OverloadedOperatorKind OO, bool Postfix); 944bc736fceca6f0bca31d16003a7587857190408fbDouglas Gregor 945bc736fceca6f0bca31d16003a7587857190408fbDouglas Gregor /// \brief Retrieve the overloaded operator kind that corresponds to 946bc736fceca6f0bca31d16003a7587857190408fbDouglas Gregor /// the given unary opcode. 947bc736fceca6f0bca31d16003a7587857190408fbDouglas Gregor static OverloadedOperatorKind getOverloadedOperator(Opcode Opc); 948bc736fceca6f0bca31d16003a7587857190408fbDouglas Gregor 9495f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer virtual SourceRange getSourceRange() const { 9505f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (isPostfix()) 9515f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return SourceRange(Val->getLocStart(), Loc); 9525f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer else 9535f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return SourceRange(Loc, Val->getLocEnd()); 9545f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 9555f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer virtual SourceLocation getExprLoc() const { return Loc; } 9561eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 9571eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 9581eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == UnaryOperatorClass; 9595f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 9605f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const UnaryOperator *) { return true; } 9611eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 96277ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek // Iterators 96377ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_begin(); 96477ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_end(); 9655f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 9665f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 9670518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl/// SizeOfAlignOfExpr - [C99 6.5.3.4] - This is for sizeof/alignof, both of 9680518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl/// types and expressions. 9690518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redlclass SizeOfAlignOfExpr : public Expr { 9700518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl bool isSizeof : 1; // true if sizeof, false if alignof. 9710518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl bool isType : 1; // true if operand is a type, false if an expression 972d457589fc69dc7a9c80cd74d317c0b81a35a27c9Sebastian Redl union { 973a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall TypeSourceInfo *Ty; 974d457589fc69dc7a9c80cd74d317c0b81a35a27c9Sebastian Redl Stmt *Ex; 975d457589fc69dc7a9c80cd74d317c0b81a35a27c9Sebastian Redl } Argument; 9765f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation OpLoc, RParenLoc; 97742602bb40aefcc2751d4078ba88aacf4d965c9bdDouglas Gregor 97842602bb40aefcc2751d4078ba88aacf4d965c9bdDouglas Gregorprotected: 97942602bb40aefcc2751d4078ba88aacf4d965c9bdDouglas Gregor virtual void DoDestroy(ASTContext& C); 98042602bb40aefcc2751d4078ba88aacf4d965c9bdDouglas Gregor 9815f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 982a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall SizeOfAlignOfExpr(bool issizeof, TypeSourceInfo *TInfo, 9830518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl QualType resultType, SourceLocation op, 9840518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl SourceLocation rp) : 9852850784bda09416fc7e9d57f5baa36c9351c757cSebastian Redl Expr(SizeOfAlignOfExprClass, resultType, 986ba49817c5b9f502602672861cf369fd0e53966e8Douglas Gregor false, // Never type-dependent (C++ [temp.dep.expr]p3). 9872850784bda09416fc7e9d57f5baa36c9351c757cSebastian Redl // Value-dependent if the argument is type-dependent. 988a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall TInfo->getType()->isDependentType()), 989ba49817c5b9f502602672861cf369fd0e53966e8Douglas Gregor isSizeof(issizeof), isType(true), OpLoc(op), RParenLoc(rp) { 990a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall Argument.Ty = TInfo; 991ba49817c5b9f502602672861cf369fd0e53966e8Douglas Gregor } 992ba49817c5b9f502602672861cf369fd0e53966e8Douglas Gregor 9931eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump SizeOfAlignOfExpr(bool issizeof, Expr *E, 994ba49817c5b9f502602672861cf369fd0e53966e8Douglas Gregor QualType resultType, SourceLocation op, 995ba49817c5b9f502602672861cf369fd0e53966e8Douglas Gregor SourceLocation rp) : 996ba49817c5b9f502602672861cf369fd0e53966e8Douglas Gregor Expr(SizeOfAlignOfExprClass, resultType, 997ba49817c5b9f502602672861cf369fd0e53966e8Douglas Gregor false, // Never type-dependent (C++ [temp.dep.expr]p3). 998ba49817c5b9f502602672861cf369fd0e53966e8Douglas Gregor // Value-dependent if the argument is type-dependent. 999ba49817c5b9f502602672861cf369fd0e53966e8Douglas Gregor E->isTypeDependent()), 1000ba49817c5b9f502602672861cf369fd0e53966e8Douglas Gregor isSizeof(issizeof), isType(false), OpLoc(op), RParenLoc(rp) { 1001ba49817c5b9f502602672861cf369fd0e53966e8Douglas Gregor Argument.Ex = E; 1002d457589fc69dc7a9c80cd74d317c0b81a35a27c9Sebastian Redl } 10030518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl 10040b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor /// \brief Construct an empty sizeof/alignof expression. 10050b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor explicit SizeOfAlignOfExpr(EmptyShell Empty) 10060b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor : Expr(SizeOfAlignOfExprClass, Empty) { } 10070b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor 10085f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool isSizeOf() const { return isSizeof; } 10090b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor void setSizeof(bool S) { isSizeof = S; } 10100b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor 10110518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl bool isArgumentType() const { return isType; } 10120518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl QualType getArgumentType() const { 10135ab75172051a6d2ea71a80a79e81c65519fd3462John McCall return getArgumentTypeInfo()->getType(); 10145ab75172051a6d2ea71a80a79e81c65519fd3462John McCall } 1015a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall TypeSourceInfo *getArgumentTypeInfo() const { 10160518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl assert(isArgumentType() && "calling getArgumentType() when arg is expr"); 10175ab75172051a6d2ea71a80a79e81c65519fd3462John McCall return Argument.Ty; 10180518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl } 1019caae7b099a0324b7c15dc89a9b70969d5d7ce996Chris Lattner Expr *getArgumentExpr() { 10200518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl assert(!isArgumentType() && "calling getArgumentExpr() when arg is type"); 1021d457589fc69dc7a9c80cd74d317c0b81a35a27c9Sebastian Redl return static_cast<Expr*>(Argument.Ex); 10220518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl } 1023caae7b099a0324b7c15dc89a9b70969d5d7ce996Chris Lattner const Expr *getArgumentExpr() const { 1024caae7b099a0324b7c15dc89a9b70969d5d7ce996Chris Lattner return const_cast<SizeOfAlignOfExpr*>(this)->getArgumentExpr(); 1025caae7b099a0324b7c15dc89a9b70969d5d7ce996Chris Lattner } 10260b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor 10270b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor void setArgument(Expr *E) { Argument.Ex = E; isType = false; } 1028a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall void setArgument(TypeSourceInfo *TInfo) { 1029a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall Argument.Ty = TInfo; 10301eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump isType = true; 10310b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor } 10320b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor 10330518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl /// Gets the argument type, or the type of the argument expression, whichever 10340518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl /// is appropriate. 10350518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl QualType getTypeOfArgument() const { 10360518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl return isArgumentType() ? getArgumentType() : getArgumentExpr()->getType(); 10370518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl } 10380518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl 103976e773a443be9f006610f46529e07d4c8d857680Chris Lattner SourceLocation getOperatorLoc() const { return OpLoc; } 10400b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor void setOperatorLoc(SourceLocation L) { OpLoc = L; } 10410b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor 10420b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor SourceLocation getRParenLoc() const { return RParenLoc; } 10430b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor void setRParenLoc(SourceLocation L) { RParenLoc = L; } 1044866b5c03e3b9c01cf496ad97b85a05afc917345bTed Kremenek 1045866b5c03e3b9c01cf496ad97b85a05afc917345bTed Kremenek virtual SourceRange getSourceRange() const { 1046866b5c03e3b9c01cf496ad97b85a05afc917345bTed Kremenek return SourceRange(OpLoc, RParenLoc); 1047866b5c03e3b9c01cf496ad97b85a05afc917345bTed Kremenek } 10485f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 10491eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 10501eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == SizeOfAlignOfExprClass; 10515f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 10520518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl static bool classof(const SizeOfAlignOfExpr *) { return true; } 10531eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 105477ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek // Iterators 105577ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_begin(); 105677ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_end(); 10575f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 10585f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 10595f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer//===----------------------------------------------------------------------===// 10605f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// Postfix Operators. 10615f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer//===----------------------------------------------------------------------===// 10625f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 10635f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// ArraySubscriptExpr - [C99 6.5.2.1] Array Subscripting. 10645f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass ArraySubscriptExpr : public Expr { 106577ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek enum { LHS, RHS, END_EXPR=2 }; 10661eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump Stmt* SubExprs[END_EXPR]; 10675f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation RBracketLoc; 10685f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 10692324512285caac0332bbbc6e4cab6245d2a370a1Ted Kremenek ArraySubscriptExpr(Expr *lhs, Expr *rhs, QualType t, 107073d0d4fac161ed12926e010dcf8b448a8de6a2ecChris Lattner SourceLocation rbracketloc) 10712850784bda09416fc7e9d57f5baa36c9351c757cSebastian Redl : Expr(ArraySubscriptExprClass, t, 10722850784bda09416fc7e9d57f5baa36c9351c757cSebastian Redl lhs->isTypeDependent() || rhs->isTypeDependent(), 10732850784bda09416fc7e9d57f5baa36c9351c757cSebastian Redl lhs->isValueDependent() || rhs->isValueDependent()), 10742850784bda09416fc7e9d57f5baa36c9351c757cSebastian Redl RBracketLoc(rbracketloc) { 107573d0d4fac161ed12926e010dcf8b448a8de6a2ecChris Lattner SubExprs[LHS] = lhs; 107673d0d4fac161ed12926e010dcf8b448a8de6a2ecChris Lattner SubExprs[RHS] = rhs; 107773d0d4fac161ed12926e010dcf8b448a8de6a2ecChris Lattner } 10781eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1079cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor /// \brief Create an empty array subscript expression. 1080cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor explicit ArraySubscriptExpr(EmptyShell Shell) 1081cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor : Expr(ArraySubscriptExprClass, Shell) { } 1082cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor 10832324512285caac0332bbbc6e4cab6245d2a370a1Ted Kremenek /// An array access can be written A[4] or 4[A] (both are equivalent). 10842324512285caac0332bbbc6e4cab6245d2a370a1Ted Kremenek /// - getBase() and getIdx() always present the normalized view: A[4]. 10852324512285caac0332bbbc6e4cab6245d2a370a1Ted Kremenek /// In this case getBase() returns "A" and getIdx() returns "4". 10862324512285caac0332bbbc6e4cab6245d2a370a1Ted Kremenek /// - getLHS() and getRHS() present the syntactic view. e.g. for 10872324512285caac0332bbbc6e4cab6245d2a370a1Ted Kremenek /// 4[A] getLHS() returns "4". 108833fd5c124aac15bab7cad95e4e0e7761356d2c06Christopher Lamb /// Note: Because vector element access is also written A[4] we must 108933fd5c124aac15bab7cad95e4e0e7761356d2c06Christopher Lamb /// predicate the format conversion in getBase and getIdx only on the 109033fd5c124aac15bab7cad95e4e0e7761356d2c06Christopher Lamb /// the type of the RHS, as it is possible for the LHS to be a vector of 109133fd5c124aac15bab7cad95e4e0e7761356d2c06Christopher Lamb /// integer type 10925549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getLHS() { return cast<Expr>(SubExprs[LHS]); } 10935549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek const Expr *getLHS() const { return cast<Expr>(SubExprs[LHS]); } 1094cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor void setLHS(Expr *E) { SubExprs[LHS] = E; } 1095cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor 10965549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getRHS() { return cast<Expr>(SubExprs[RHS]); } 10975549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek const Expr *getRHS() const { return cast<Expr>(SubExprs[RHS]); } 1098cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor void setRHS(Expr *E) { SubExprs[RHS] = E; } 10991eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 11001eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump Expr *getBase() { 11015549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek return cast<Expr>(getRHS()->getType()->isIntegerType() ? getLHS():getRHS()); 110277ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek } 11031eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 11041eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump const Expr *getBase() const { 11055549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek return cast<Expr>(getRHS()->getType()->isIntegerType() ? getLHS():getRHS()); 11062324512285caac0332bbbc6e4cab6245d2a370a1Ted Kremenek } 11071eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 11081eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump Expr *getIdx() { 11095549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek return cast<Expr>(getRHS()->getType()->isIntegerType() ? getRHS():getLHS()); 11102324512285caac0332bbbc6e4cab6245d2a370a1Ted Kremenek } 11111eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 111277ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek const Expr *getIdx() const { 11135549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek return cast<Expr>(getRHS()->getType()->isIntegerType() ? getRHS():getLHS()); 11141eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump } 11151eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 11161eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump virtual SourceRange getSourceRange() const { 111777ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek return SourceRange(getLHS()->getLocStart(), RBracketLoc); 11185f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 11191eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1120026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner SourceLocation getRBracketLoc() const { return RBracketLoc; } 1121cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor void setRBracketLoc(SourceLocation L) { RBracketLoc = L; } 1122cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor 11235cd9d6daf3acd4cc87fecebd81d9495b9e4ba9cdChris Lattner virtual SourceLocation getExprLoc() const { return getBase()->getExprLoc(); } 11245f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 11251eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 11261eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == ArraySubscriptExprClass; 11275f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 11285f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const ArraySubscriptExpr *) { return true; } 11291eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 113077ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek // Iterators 113177ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_begin(); 113277ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_end(); 11335f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 11345f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 11355f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1136b4609806e9232593ece09ce08b630836e825865cDouglas Gregor/// CallExpr - Represents a function call (C99 6.5.2.2, C++ [expr.call]). 11371eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// CallExpr itself represents a normal function call, e.g., "f(x, 2)", 1138b4609806e9232593ece09ce08b630836e825865cDouglas Gregor/// while its subclasses may represent alternative syntax that (semantically) 11391eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// results in a function call. For example, CXXOperatorCallExpr is 1140b4609806e9232593ece09ce08b630836e825865cDouglas Gregor/// a subclass for overloaded operator calls that use operator syntax, e.g., 1141b4609806e9232593ece09ce08b630836e825865cDouglas Gregor/// "str1 + str2" to resolve to a function call. 11425f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass CallExpr : public Expr { 114377ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek enum { FN=0, ARGS_START=1 }; 11445549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Stmt **SubExprs; 11455f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer unsigned NumArgs; 11465f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation RParenLoc; 11471eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1148b4609806e9232593ece09ce08b630836e825865cDouglas Gregorprotected: 1149b4609806e9232593ece09ce08b630836e825865cDouglas Gregor // This version of the constructor is for derived classes. 1150668bf91d31265b6ea8c3eb854ba450857701f269Ted Kremenek CallExpr(ASTContext& C, StmtClass SC, Expr *fn, Expr **args, unsigned numargs, 1151668bf91d31265b6ea8c3eb854ba450857701f269Ted Kremenek QualType t, SourceLocation rparenloc); 115242602bb40aefcc2751d4078ba88aacf4d965c9bdDouglas Gregor 115342602bb40aefcc2751d4078ba88aacf4d965c9bdDouglas Gregor virtual void DoDestroy(ASTContext& C); 11541eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 11555f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 11561eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump CallExpr(ASTContext& C, Expr *fn, Expr **args, unsigned numargs, QualType t, 11575f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation rparenloc); 11581eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 11591f0d0133b0e8d1f01f63951ee04927796b34740dDouglas Gregor /// \brief Build an empty call expression. 1160ba0a9006dbc4814e1e35f82812cb5a1dad65e8b8Argyrios Kyrtzidis CallExpr(ASTContext &C, StmtClass SC, EmptyShell Empty); 11611f0d0133b0e8d1f01f63951ee04927796b34740dDouglas Gregor 1162668bf91d31265b6ea8c3eb854ba450857701f269Ted Kremenek ~CallExpr() {} 11631eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 11645549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek const Expr *getCallee() const { return cast<Expr>(SubExprs[FN]); } 11655549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getCallee() { return cast<Expr>(SubExprs[FN]); } 116618b2515e1bf8c86a4900792692e42fe1296be28dChris Lattner void setCallee(Expr *F) { SubExprs[FN] = F; } 1167a00425414e8c209cabc25d1826b200aeb94259afZhongxing Xu 1168a00425414e8c209cabc25d1826b200aeb94259afZhongxing Xu /// \brief If the callee is a FunctionDecl, return it. Otherwise return 0. 1169a00425414e8c209cabc25d1826b200aeb94259afZhongxing Xu FunctionDecl *getDirectCallee(); 1170bc8d42c6f1565c0b2f93ad524edebfd7a4e6cac6Chris Lattner const FunctionDecl *getDirectCallee() const { 1171bc8d42c6f1565c0b2f93ad524edebfd7a4e6cac6Chris Lattner return const_cast<CallExpr*>(this)->getDirectCallee(); 1172bc8d42c6f1565c0b2f93ad524edebfd7a4e6cac6Chris Lattner } 1173a00425414e8c209cabc25d1826b200aeb94259afZhongxing Xu 11745f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// getNumArgs - Return the number of actual arguments to this call. 11755f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// 11765f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer unsigned getNumArgs() const { return NumArgs; } 11771eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 11785f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// getArg - Return the specified argument. 11795f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Expr *getArg(unsigned Arg) { 11805f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer assert(Arg < NumArgs && "Arg access out of range!"); 11815549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek return cast<Expr>(SubExprs[Arg+ARGS_START]); 11825f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 11835f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer const Expr *getArg(unsigned Arg) const { 11845f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer assert(Arg < NumArgs && "Arg access out of range!"); 11855549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek return cast<Expr>(SubExprs[Arg+ARGS_START]); 11865f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 11871eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1188934f276cc5b45e19cd12ebb2d04fd7972a23865cSteve Naroff /// setArg - Set the specified argument. 1189934f276cc5b45e19cd12ebb2d04fd7972a23865cSteve Naroff void setArg(unsigned Arg, Expr *ArgExpr) { 1190934f276cc5b45e19cd12ebb2d04fd7972a23865cSteve Naroff assert(Arg < NumArgs && "Arg access out of range!"); 1191934f276cc5b45e19cd12ebb2d04fd7972a23865cSteve Naroff SubExprs[Arg+ARGS_START] = ArgExpr; 1192934f276cc5b45e19cd12ebb2d04fd7972a23865cSteve Naroff } 11931eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1194d18b3299debb7b0dbd9d34d9369189dc98c87f53Chris Lattner /// setNumArgs - This changes the number of arguments present in this call. 1195d18b3299debb7b0dbd9d34d9369189dc98c87f53Chris Lattner /// Any orphaned expressions are deleted by this, and any new operands are set 1196d18b3299debb7b0dbd9d34d9369189dc98c87f53Chris Lattner /// to null. 11978189cde56b4f6f938cd65f53c932fe1860d0204cTed Kremenek void setNumArgs(ASTContext& C, unsigned NumArgs); 11981eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 11995549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek typedef ExprIterator arg_iterator; 12005549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek typedef ConstExprIterator const_arg_iterator; 12011eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1202d18b3299debb7b0dbd9d34d9369189dc98c87f53Chris Lattner arg_iterator arg_begin() { return SubExprs+ARGS_START; } 1203d18b3299debb7b0dbd9d34d9369189dc98c87f53Chris Lattner arg_iterator arg_end() { return SubExprs+ARGS_START+getNumArgs(); } 12045549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek const_arg_iterator arg_begin() const { return SubExprs+ARGS_START; } 12055549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek const_arg_iterator arg_end() const { return SubExprs+ARGS_START+getNumArgs();} 12061eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 12075f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// getNumCommas - Return the number of commas that must have been present in 12085f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// this function call. 12095f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer unsigned getNumCommas() const { return NumArgs ? NumArgs - 1 : 0; } 12105f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1211cb888967400a03504c88acedd5248d6778a82f46Chris Lattner /// isBuiltinCall - If this is a call to a builtin, return the builtin ID. If 1212cb888967400a03504c88acedd5248d6778a82f46Chris Lattner /// not, return 0. 12133c385e5f8d9008fff18597ca302be19fa86e51f6Douglas Gregor unsigned isBuiltinCall(ASTContext &Context) const; 12141eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 12151eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /// getCallReturnType - Get the return type of the call expr. This is not 12161eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /// always the type of the expr itself, if the return type is a reference 12176dde78f744382a5627a04f984a97049e0c4b5e73Anders Carlsson /// type. 12186dde78f744382a5627a04f984a97049e0c4b5e73Anders Carlsson QualType getCallReturnType() const; 12191eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1220d18b3299debb7b0dbd9d34d9369189dc98c87f53Chris Lattner SourceLocation getRParenLoc() const { return RParenLoc; } 12211f0d0133b0e8d1f01f63951ee04927796b34740dDouglas Gregor void setRParenLoc(SourceLocation L) { RParenLoc = L; } 1222866b5c03e3b9c01cf496ad97b85a05afc917345bTed Kremenek 12231eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump virtual SourceRange getSourceRange() const { 122477ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek return SourceRange(getCallee()->getLocStart(), RParenLoc); 12255f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 12261eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 12271eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 1228b4609806e9232593ece09ce08b630836e825865cDouglas Gregor return T->getStmtClass() == CallExprClass || 122988a3514f36de96b19cdf50141c640df1a5f13f6cDouglas Gregor T->getStmtClass() == CXXOperatorCallExprClass || 12301eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump T->getStmtClass() == CXXMemberCallExprClass; 12315f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 12325f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const CallExpr *) { return true; } 123388a3514f36de96b19cdf50141c640df1a5f13f6cDouglas Gregor static bool classof(const CXXOperatorCallExpr *) { return true; } 123488a3514f36de96b19cdf50141c640df1a5f13f6cDouglas Gregor static bool classof(const CXXMemberCallExpr *) { return true; } 123588a3514f36de96b19cdf50141c640df1a5f13f6cDouglas Gregor 123677ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek // Iterators 123777ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_begin(); 123877ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_end(); 12395f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 12405f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1241ddca44e86281bb7dcf5fdcaf1563434c524e3861Chris Lattner/// MemberExpr - [C99 6.5.2.3] Structure and Union Members. X->F and X.F. 12425f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 12435f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass MemberExpr : public Expr { 1244ddca44e86281bb7dcf5fdcaf1563434c524e3861Chris Lattner /// Base - the expression for the base pointer or structure references. In 1245ddca44e86281bb7dcf5fdcaf1563434c524e3861Chris Lattner /// X.F, this is "X". 12465549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Stmt *Base; 12471eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1248ddca44e86281bb7dcf5fdcaf1563434c524e3861Chris Lattner /// MemberDecl - This is the decl being referenced by the field/member name. 1249ddca44e86281bb7dcf5fdcaf1563434c524e3861Chris Lattner /// In X.F, this is the decl referenced by F. 1250f595cc41c4d95fe323f8a2b209523de9956f874dEli Friedman ValueDecl *MemberDecl; 12511eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1252ddca44e86281bb7dcf5fdcaf1563434c524e3861Chris Lattner /// MemberLoc - This is the location of the member name. 12535f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation MemberLoc; 12541eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1255ddca44e86281bb7dcf5fdcaf1563434c524e3861Chris Lattner /// IsArrow - True if this is "X->F", false if this is "X.F". 125683f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor bool IsArrow : 1; 12571eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 125883f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor /// \brief True if this member expression used a nested-name-specifier to 12591eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /// refer to the member, e.g., "x->Base::f". When true, a NameQualifier 1260c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor /// structure is allocated immediately after the MemberExpr. 126183f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor bool HasQualifier : 1; 12621eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1263c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor /// \brief True if this member expression specified a template argument list 1264c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor /// explicitly, e.g., x->f<int>. When true, an ExplicitTemplateArgumentList 1265c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor /// structure (and its TemplateArguments) are allocated immediately after 1266c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor /// the MemberExpr or, if the member expression also has a qualifier, after 1267c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor /// the NameQualifier structure. 1268c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor bool HasExplicitTemplateArgumentList : 1; 12691eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 127083f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor /// \brief Retrieve the qualifier that preceded the member name, if any. 127183f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor NameQualifier *getMemberQualifier() { 127283f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor if (!HasQualifier) 127383f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor return 0; 12741eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 127583f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor return reinterpret_cast<NameQualifier *> (this + 1); 127683f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor } 127783f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor 127883f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor /// \brief Retrieve the qualifier that preceded the member name, if any. 127983f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor const NameQualifier *getMemberQualifier() const { 1280c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor return const_cast<MemberExpr *>(this)->getMemberQualifier(); 1281c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor } 12821eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1283c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor /// \brief Retrieve the explicit template argument list that followed the 1284c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor /// member template name, if any. 1285c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor ExplicitTemplateArgumentList *getExplicitTemplateArgumentList() { 1286c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor if (!HasExplicitTemplateArgumentList) 128783f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor return 0; 12881eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1289c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor if (!HasQualifier) 1290c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor return reinterpret_cast<ExplicitTemplateArgumentList *>(this + 1); 12911eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1292c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor return reinterpret_cast<ExplicitTemplateArgumentList *>( 1293c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor getMemberQualifier() + 1); 1294c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor } 12951eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1296c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor /// \brief Retrieve the explicit template argument list that followed the 1297c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor /// member template name, if any. 1298c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor const ExplicitTemplateArgumentList *getExplicitTemplateArgumentList() const { 1299c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor return const_cast<MemberExpr *>(this)->getExplicitTemplateArgumentList(); 130083f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor } 13011eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 13021eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump MemberExpr(Expr *base, bool isarrow, NestedNameSpecifier *qual, 1303f595cc41c4d95fe323f8a2b209523de9956f874dEli Friedman SourceRange qualrange, ValueDecl *memberdecl, SourceLocation l, 1304d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall const TemplateArgumentListInfo *targs, QualType ty); 130583f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor 13065f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 1307f595cc41c4d95fe323f8a2b209523de9956f874dEli Friedman MemberExpr(Expr *base, bool isarrow, ValueDecl *memberdecl, 1308f595cc41c4d95fe323f8a2b209523de9956f874dEli Friedman SourceLocation l, QualType ty) 13091eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump : Expr(MemberExprClass, ty, 1310ffce2df6ae280d354d51371282a579df1eb86876Anders Carlsson base->isTypeDependent(), base->isValueDependent()), 131183f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor Base(base), MemberDecl(memberdecl), MemberLoc(l), IsArrow(isarrow), 1312c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor HasQualifier(false), HasExplicitTemplateArgumentList(false) {} 1313510190777c4bd53e960eea4665b204778fec1b64Eli Friedman 13141f0d0133b0e8d1f01f63951ee04927796b34740dDouglas Gregor /// \brief Build an empty member reference expression. 13151eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump explicit MemberExpr(EmptyShell Empty) 13161eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump : Expr(MemberExprClass, Empty), HasQualifier(false), 1317e6585a7d71510be00a625686153f48d496d3bbf1Douglas Gregor HasExplicitTemplateArgumentList(false) { } 13181f0d0133b0e8d1f01f63951ee04927796b34740dDouglas Gregor 13191eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static MemberExpr *Create(ASTContext &C, Expr *base, bool isarrow, 132083f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor NestedNameSpecifier *qual, SourceRange qualrange, 1321f595cc41c4d95fe323f8a2b209523de9956f874dEli Friedman ValueDecl *memberdecl, 1322c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor SourceLocation l, 1323d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall const TemplateArgumentListInfo *targs, 1324c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor QualType ty); 13251eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 132688a3514f36de96b19cdf50141c640df1a5f13f6cDouglas Gregor void setBase(Expr *E) { Base = E; } 13275549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getBase() const { return cast<Expr>(Base); } 132857e8b05fe9ba03d410db9c161e032cb79c9ab5baDouglas Gregor 132957e8b05fe9ba03d410db9c161e032cb79c9ab5baDouglas Gregor /// \brief Retrieve the member declaration to which this expression refers. 133057e8b05fe9ba03d410db9c161e032cb79c9ab5baDouglas Gregor /// 133157e8b05fe9ba03d410db9c161e032cb79c9ab5baDouglas Gregor /// The returned declaration will either be a FieldDecl or (in C++) 133257e8b05fe9ba03d410db9c161e032cb79c9ab5baDouglas Gregor /// a CXXMethodDecl. 1333f595cc41c4d95fe323f8a2b209523de9956f874dEli Friedman ValueDecl *getMemberDecl() const { return MemberDecl; } 1334f595cc41c4d95fe323f8a2b209523de9956f874dEli Friedman void setMemberDecl(ValueDecl *D) { MemberDecl = D; } 13351f0d0133b0e8d1f01f63951ee04927796b34740dDouglas Gregor 13361eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /// \brief Determines whether this member expression actually had 13370979c805475d1ba49b5d6ef93c4d2ce6d2eab6edDouglas Gregor /// a C++ nested-name-specifier prior to the name of the member, e.g., 13380979c805475d1ba49b5d6ef93c4d2ce6d2eab6edDouglas Gregor /// x->Base::foo. 133983f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor bool hasQualifier() const { return HasQualifier; } 13401eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 134183f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor /// \brief If the member name was qualified, retrieves the source range of 134283f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor /// the nested-name-specifier that precedes the member name. Otherwise, 134383f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor /// returns an empty source range. 13441eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump SourceRange getQualifierRange() const { 134583f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor if (!HasQualifier) 134683f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor return SourceRange(); 13471eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 134883f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor return getMemberQualifier()->Range; 134983f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor } 13501eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 13511eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /// \brief If the member name was qualified, retrieves the 135283f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor /// nested-name-specifier that precedes the member name. Otherwise, returns 135383f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor /// NULL. 13541eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump NestedNameSpecifier *getQualifier() const { 135583f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor if (!HasQualifier) 135683f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor return 0; 13571eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 135883f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor return getMemberQualifier()->NNS; 135983f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor } 1360c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor 1361c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor /// \brief Determines whether this member expression actually had a C++ 1362c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor /// template argument list explicitly specified, e.g., x.f<int>. 1363d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall bool hasExplicitTemplateArgumentList() const { 13641eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return HasExplicitTemplateArgumentList; 1365c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor } 13661eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1367d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall /// \brief Copies the template arguments (if present) into the given 1368d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall /// structure. 1369d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall void copyTemplateArgumentsInto(TemplateArgumentListInfo &List) const { 1370d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall if (hasExplicitTemplateArgumentList()) 1371d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall getExplicitTemplateArgumentList()->copyInto(List); 1372d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall } 1373d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall 13741eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /// \brief Retrieve the location of the left angle bracket following the 1375c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor /// member name ('<'), if any. 13761eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump SourceLocation getLAngleLoc() const { 1377c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor if (!HasExplicitTemplateArgumentList) 1378c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor return SourceLocation(); 13791eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1380c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor return getExplicitTemplateArgumentList()->LAngleLoc; 1381c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor } 13821eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1383c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor /// \brief Retrieve the template arguments provided as part of this 1384c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor /// template-id. 1385833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall const TemplateArgumentLoc *getTemplateArgs() const { 1386c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor if (!HasExplicitTemplateArgumentList) 13871eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return 0; 13881eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1389c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor return getExplicitTemplateArgumentList()->getTemplateArgs(); 1390c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor } 13911eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1392c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor /// \brief Retrieve the number of template arguments provided as part of this 1393c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor /// template-id. 13941eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump unsigned getNumTemplateArgs() const { 1395c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor if (!HasExplicitTemplateArgumentList) 13961eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return 0; 13971eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1398c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor return getExplicitTemplateArgumentList()->NumTemplateArgs; 1399c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor } 14001eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 14011eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /// \brief Retrieve the location of the right angle bracket following the 1402c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor /// template arguments ('>'). 14031eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump SourceLocation getRAngleLoc() const { 1404c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor if (!HasExplicitTemplateArgumentList) 1405c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor return SourceLocation(); 14061eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1407c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor return getExplicitTemplateArgumentList()->RAngleLoc; 1408c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor } 14091eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 14105f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool isArrow() const { return IsArrow; } 14111f0d0133b0e8d1f01f63951ee04927796b34740dDouglas Gregor void setArrow(bool A) { IsArrow = A; } 14121f0d0133b0e8d1f01f63951ee04927796b34740dDouglas Gregor 1413ddca44e86281bb7dcf5fdcaf1563434c524e3861Chris Lattner /// getMemberLoc - Return the location of the "member", in X->F, it is the 1414ddca44e86281bb7dcf5fdcaf1563434c524e3861Chris Lattner /// location of 'F'. 1415026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner SourceLocation getMemberLoc() const { return MemberLoc; } 14161f0d0133b0e8d1f01f63951ee04927796b34740dDouglas Gregor void setMemberLoc(SourceLocation L) { MemberLoc = L; } 14175f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 14185f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer virtual SourceRange getSourceRange() const { 141972527137c521ad9330ecb81ccd841159719dc8cdEli Friedman // If we have an implicit base (like a C++ implicit this), 142072527137c521ad9330ecb81ccd841159719dc8cdEli Friedman // make sure not to return its location 1421c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor SourceLocation EndLoc = MemberLoc; 1422c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor if (HasExplicitTemplateArgumentList) 1423c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor EndLoc = getRAngleLoc(); 14241eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 142572527137c521ad9330ecb81ccd841159719dc8cdEli Friedman SourceLocation BaseLoc = getBase()->getLocStart(); 142672527137c521ad9330ecb81ccd841159719dc8cdEli Friedman if (BaseLoc.isInvalid()) 1427c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor return SourceRange(MemberLoc, EndLoc); 1428c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor return SourceRange(BaseLoc, EndLoc); 14295f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 14301eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 14315f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer virtual SourceLocation getExprLoc() const { return MemberLoc; } 14325f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 14331eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 143483f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor return T->getStmtClass() == MemberExprClass; 14355f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 14365f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const MemberExpr *) { return true; } 14371eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 14381237c673c07f9d827129ba02720108816abde562Ted Kremenek // Iterators 14391237c673c07f9d827129ba02720108816abde562Ted Kremenek virtual child_iterator child_begin(); 14401237c673c07f9d827129ba02720108816abde562Ted Kremenek virtual child_iterator child_end(); 14415f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 14425f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 14431eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// CompoundLiteralExpr - [C99 6.5.2.5] 1444aff1edd84aaafef15b737acd8ec61abcca6d6bc3Steve Naroff/// 1445aff1edd84aaafef15b737acd8ec61abcca6d6bc3Steve Naroffclass CompoundLiteralExpr : public Expr { 14460fc53dfc7a33f68e71ef245389c4e7cd34a62a39Chris Lattner /// LParenLoc - If non-null, this is the location of the left paren in a 14470fc53dfc7a33f68e71ef245389c4e7cd34a62a39Chris Lattner /// compound literal like "(int){4}". This can be null if this is a 14480fc53dfc7a33f68e71ef245389c4e7cd34a62a39Chris Lattner /// synthesized compound expression. 14490fc53dfc7a33f68e71ef245389c4e7cd34a62a39Chris Lattner SourceLocation LParenLoc; 14505549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Stmt *Init; 1451e9b12198c4cc7f5687960100351b4af006c14469Steve Naroff bool FileScope; 1452aff1edd84aaafef15b737acd8ec61abcca6d6bc3Steve Naroffpublic: 1453a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner CompoundLiteralExpr(SourceLocation lparenloc, QualType ty, Expr *init, 1454a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner bool fileScope) 1455a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner : Expr(CompoundLiteralExprClass, ty), LParenLoc(lparenloc), Init(init), 1456a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner FileScope(fileScope) {} 14571eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1458ba6d7e7fa5f79959d3eef39adb5620d845ba5198Douglas Gregor /// \brief Construct an empty compound literal. 1459ba6d7e7fa5f79959d3eef39adb5620d845ba5198Douglas Gregor explicit CompoundLiteralExpr(EmptyShell Empty) 1460ba6d7e7fa5f79959d3eef39adb5620d845ba5198Douglas Gregor : Expr(CompoundLiteralExprClass, Empty) { } 1461ba6d7e7fa5f79959d3eef39adb5620d845ba5198Douglas Gregor 14625549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek const Expr *getInitializer() const { return cast<Expr>(Init); } 14635549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getInitializer() { return cast<Expr>(Init); } 1464ba6d7e7fa5f79959d3eef39adb5620d845ba5198Douglas Gregor void setInitializer(Expr *E) { Init = E; } 1465e9b12198c4cc7f5687960100351b4af006c14469Steve Naroff 1466e9b12198c4cc7f5687960100351b4af006c14469Steve Naroff bool isFileScope() const { return FileScope; } 1467ba6d7e7fa5f79959d3eef39adb5620d845ba5198Douglas Gregor void setFileScope(bool FS) { FileScope = FS; } 1468ba6d7e7fa5f79959d3eef39adb5620d845ba5198Douglas Gregor 14690fc53dfc7a33f68e71ef245389c4e7cd34a62a39Chris Lattner SourceLocation getLParenLoc() const { return LParenLoc; } 1470ba6d7e7fa5f79959d3eef39adb5620d845ba5198Douglas Gregor void setLParenLoc(SourceLocation L) { LParenLoc = L; } 1471ba6d7e7fa5f79959d3eef39adb5620d845ba5198Douglas Gregor 147273d0d4fac161ed12926e010dcf8b448a8de6a2ecChris Lattner virtual SourceRange getSourceRange() const { 14730fc53dfc7a33f68e71ef245389c4e7cd34a62a39Chris Lattner // FIXME: Init should never be null. 14740fc53dfc7a33f68e71ef245389c4e7cd34a62a39Chris Lattner if (!Init) 14750fc53dfc7a33f68e71ef245389c4e7cd34a62a39Chris Lattner return SourceRange(); 14760fc53dfc7a33f68e71ef245389c4e7cd34a62a39Chris Lattner if (LParenLoc.isInvalid()) 147773d0d4fac161ed12926e010dcf8b448a8de6a2ecChris Lattner return Init->getSourceRange(); 14780fc53dfc7a33f68e71ef245389c4e7cd34a62a39Chris Lattner return SourceRange(LParenLoc, Init->getLocEnd()); 147973d0d4fac161ed12926e010dcf8b448a8de6a2ecChris Lattner } 1480aff1edd84aaafef15b737acd8ec61abcca6d6bc3Steve Naroff 14811eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 14821eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == CompoundLiteralExprClass; 1483aff1edd84aaafef15b737acd8ec61abcca6d6bc3Steve Naroff } 1484aff1edd84aaafef15b737acd8ec61abcca6d6bc3Steve Naroff static bool classof(const CompoundLiteralExpr *) { return true; } 14851eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 14861237c673c07f9d827129ba02720108816abde562Ted Kremenek // Iterators 14871237c673c07f9d827129ba02720108816abde562Ted Kremenek virtual child_iterator child_begin(); 14881237c673c07f9d827129ba02720108816abde562Ted Kremenek virtual child_iterator child_end(); 1489aff1edd84aaafef15b737acd8ec61abcca6d6bc3Steve Naroff}; 1490aff1edd84aaafef15b737acd8ec61abcca6d6bc3Steve Naroff 149149badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// CastExpr - Base class for type casts, including both implicit 149249badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// casts (ImplicitCastExpr) and explicit casts that have some 149349badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// representation in the source code (ExplicitCastExpr's derived 149449badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// classes). 14950835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidisclass CastExpr : public Expr { 1496cdef2b75aa60cde1ca00e0aa3f89139ac89c6ae4Anders Carlssonpublic: 1497cdef2b75aa60cde1ca00e0aa3f89139ac89c6ae4Anders Carlsson /// CastKind - the kind of cast this represents. 1498cdef2b75aa60cde1ca00e0aa3f89139ac89c6ae4Anders Carlsson enum CastKind { 1499cdef2b75aa60cde1ca00e0aa3f89139ac89c6ae4Anders Carlsson /// CK_Unknown - Unknown cast kind. 15001eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /// FIXME: The goal is to get rid of this and make all casts have a 1501cdef2b75aa60cde1ca00e0aa3f89139ac89c6ae4Anders Carlsson /// kind so that the AST client doesn't have to try to figure out what's 1502cdef2b75aa60cde1ca00e0aa3f89139ac89c6ae4Anders Carlsson /// going on. 1503cdef2b75aa60cde1ca00e0aa3f89139ac89c6ae4Anders Carlsson CK_Unknown, 15041eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1505cdef2b75aa60cde1ca00e0aa3f89139ac89c6ae4Anders Carlsson /// CK_BitCast - Used for reinterpret_cast. 1506cdef2b75aa60cde1ca00e0aa3f89139ac89c6ae4Anders Carlsson CK_BitCast, 15071eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1508cdef2b75aa60cde1ca00e0aa3f89139ac89c6ae4Anders Carlsson /// CK_NoOp - Used for const_cast. 15093503d041ca8a3535a1c1a30005a6b18ae7aed5dbAnders Carlsson CK_NoOp, 15101eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 151111de6de25a0110cd7be97eef761ef3b189781da6Anders Carlsson /// CK_BaseToDerived - Base to derived class casts. 151211de6de25a0110cd7be97eef761ef3b189781da6Anders Carlsson CK_BaseToDerived, 151311de6de25a0110cd7be97eef761ef3b189781da6Anders Carlsson 15143503d041ca8a3535a1c1a30005a6b18ae7aed5dbAnders Carlsson /// CK_DerivedToBase - Derived to base class casts. 1515714179b179a31a0c3769a968ee18ba87b901b13fAnders Carlsson CK_DerivedToBase, 15161eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1517714179b179a31a0c3769a968ee18ba87b901b13fAnders Carlsson /// CK_Dynamic - Dynamic cast. 15184d8673b645ad86e496b886a0f80b60763f67071dAnders Carlsson CK_Dynamic, 15191eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 15204d8673b645ad86e496b886a0f80b60763f67071dAnders Carlsson /// CK_ToUnion - Cast to union (GCC extension). 1521112a0a8ddf23f6d25e0920002d5d4c1df0515f86Anders Carlsson CK_ToUnion, 15221eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1523112a0a8ddf23f6d25e0920002d5d4c1df0515f86Anders Carlsson /// CK_ArrayToPointerDecay - Array to pointer decay. 152427a5b9b9babd1e4f8a19c5c9c0736c4b311c79b2Anders Carlsson CK_ArrayToPointerDecay, 15251eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1526b633c4ee622df81d4572ef57dac54ebed69bb9bfAnders Carlsson // CK_FunctionToPointerDecay - Function to pointer decay. 1527b633c4ee622df81d4572ef57dac54ebed69bb9bfAnders Carlsson CK_FunctionToPointerDecay, 15281eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 152927a5b9b9babd1e4f8a19c5c9c0736c4b311c79b2Anders Carlsson /// CK_NullToMemberPointer - Null pointer to member pointer. 153027a5b9b9babd1e4f8a19c5c9c0736c4b311c79b2Anders Carlsson CK_NullToMemberPointer, 15311eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 153227a5b9b9babd1e4f8a19c5c9c0736c4b311c79b2Anders Carlsson /// CK_BaseToDerivedMemberPointer - Member pointer in base class to 153327a5b9b9babd1e4f8a19c5c9c0736c4b311c79b2Anders Carlsson /// member pointer in derived class. 15349099ff0cf91ac9e0b2d5a142807fa384ce842fc4Fariborz Jahanian CK_BaseToDerivedMemberPointer, 15359099ff0cf91ac9e0b2d5a142807fa384ce842fc4Fariborz Jahanian 15361a31a18db9d657751f38c724adc0d62e86852bd7Anders Carlsson /// CK_DerivedToBaseMemberPointer - Member pointer in derived class to 15371a31a18db9d657751f38c724adc0d62e86852bd7Anders Carlsson /// member pointer in base class. 15381a31a18db9d657751f38c724adc0d62e86852bd7Anders Carlsson CK_DerivedToBaseMemberPointer, 15391a31a18db9d657751f38c724adc0d62e86852bd7Anders Carlsson 15401eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /// CK_UserDefinedConversion - Conversion using a user defined type 154158d3f1af9b4efa426826816a16894986b78b2692Fariborz Jahanian /// conversion function. 15427fe5d72fbc8605b60d42d32394248ea76cf763a0Fariborz Jahanian CK_UserDefinedConversion, 15437fe5d72fbc8605b60d42d32394248ea76cf763a0Fariborz Jahanian 15447fe5d72fbc8605b60d42d32394248ea76cf763a0Fariborz Jahanian /// CK_ConstructorConversion - Conversion by constructor 15457f9e646b7ed47bc8e9a60031ad0c2b55031e2077Anders Carlsson CK_ConstructorConversion, 15467f9e646b7ed47bc8e9a60031ad0c2b55031e2077Anders Carlsson 15477f9e646b7ed47bc8e9a60031ad0c2b55031e2077Anders Carlsson /// CK_IntegralToPointer - Integral to pointer 15487f9e646b7ed47bc8e9a60031ad0c2b55031e2077Anders Carlsson CK_IntegralToPointer, 15497f9e646b7ed47bc8e9a60031ad0c2b55031e2077Anders Carlsson 15507f9e646b7ed47bc8e9a60031ad0c2b55031e2077Anders Carlsson /// CK_PointerToIntegral - Pointer to integral 1551ebeaf2031c968143c531bfe232d7507f20c57347Anders Carlsson CK_PointerToIntegral, 1552ebeaf2031c968143c531bfe232d7507f20c57347Anders Carlsson 1553ebeaf2031c968143c531bfe232d7507f20c57347Anders Carlsson /// CK_ToVoid - Cast to void. 155416a8904f3f5ed19158657e1da95e5902fbee66f7Anders Carlsson CK_ToVoid, 155516a8904f3f5ed19158657e1da95e5902fbee66f7Anders Carlsson 155616a8904f3f5ed19158657e1da95e5902fbee66f7Anders Carlsson /// CK_VectorSplat - Casting from an integer/floating type to an extended 155716a8904f3f5ed19158657e1da95e5902fbee66f7Anders Carlsson /// vector type with the same element type as the src type. Splats the 1558f67cea84bac1d3417f0baaf1fcbc86ee126e2d87Anders Carlsson /// src expression into the destination expression. 155982debc7d282e723e58d183bfa89ddc2500a8daafAnders Carlsson CK_VectorSplat, 156082debc7d282e723e58d183bfa89ddc2500a8daafAnders Carlsson 156182debc7d282e723e58d183bfa89ddc2500a8daafAnders Carlsson /// CK_IntegralCast - Casting between integral types of different size. 156282debc7d282e723e58d183bfa89ddc2500a8daafAnders Carlsson CK_IntegralCast, 156382debc7d282e723e58d183bfa89ddc2500a8daafAnders Carlsson 156482debc7d282e723e58d183bfa89ddc2500a8daafAnders Carlsson /// CK_IntegralToFloating - Integral to floating point. 156582debc7d282e723e58d183bfa89ddc2500a8daafAnders Carlsson CK_IntegralToFloating, 156682debc7d282e723e58d183bfa89ddc2500a8daafAnders Carlsson 156782debc7d282e723e58d183bfa89ddc2500a8daafAnders Carlsson /// CK_FloatingToIntegral - Floating point to integral. 156882debc7d282e723e58d183bfa89ddc2500a8daafAnders Carlsson CK_FloatingToIntegral, 156982debc7d282e723e58d183bfa89ddc2500a8daafAnders Carlsson 157082debc7d282e723e58d183bfa89ddc2500a8daafAnders Carlsson /// CK_FloatingCast - Casting between floating types of different size. 1571bc0e0781da778bd5eb41a810419912893ae20448Anders Carlsson CK_FloatingCast, 1572bc0e0781da778bd5eb41a810419912893ae20448Anders Carlsson 1573bc0e0781da778bd5eb41a810419912893ae20448Anders Carlsson /// CK_MemberPointerToBoolean - Member pointer to boolean 1574bc0e0781da778bd5eb41a810419912893ae20448Anders Carlsson CK_MemberPointerToBoolean 1575bc0e0781da778bd5eb41a810419912893ae20448Anders Carlsson 1576cdef2b75aa60cde1ca00e0aa3f89139ac89c6ae4Anders Carlsson }; 15771eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1578cdef2b75aa60cde1ca00e0aa3f89139ac89c6ae4Anders Carlssonprivate: 1579cdef2b75aa60cde1ca00e0aa3f89139ac89c6ae4Anders Carlsson CastKind Kind; 15800835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis Stmt *Op; 15810835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidisprotected: 1582c0a2fd8f092722c8f78b566ac4506a21437040e9Anders Carlsson CastExpr(StmtClass SC, QualType ty, const CastKind kind, Expr *op) : 1583898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor Expr(SC, ty, 1584898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // Cast expressions are type-dependent if the type is 1585898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // dependent (C++ [temp.dep.expr]p3). 1586898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor ty->isDependentType(), 1587898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // Cast expressions are value-dependent if the type is 1588898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // dependent or if the subexpression is value-dependent. 15891eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump ty->isDependentType() || (op && op->isValueDependent())), 1590c0a2fd8f092722c8f78b566ac4506a21437040e9Anders Carlsson Kind(kind), Op(op) {} 15911eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1592087fd536809ebe754d91c641a98917e02dd7452dDouglas Gregor /// \brief Construct an empty cast. 15931eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump CastExpr(StmtClass SC, EmptyShell Empty) 1594087fd536809ebe754d91c641a98917e02dd7452dDouglas Gregor : Expr(SC, Empty) { } 15951eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 15960835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidispublic: 1597cdef2b75aa60cde1ca00e0aa3f89139ac89c6ae4Anders Carlsson CastKind getCastKind() const { return Kind; } 1598cdef2b75aa60cde1ca00e0aa3f89139ac89c6ae4Anders Carlsson void setCastKind(CastKind K) { Kind = K; } 1599f8ec55a104e55961f8666f773dce99bbc628298fAnders Carlsson const char *getCastKindName() const; 1600f8ec55a104e55961f8666f773dce99bbc628298fAnders Carlsson 16010835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis Expr *getSubExpr() { return cast<Expr>(Op); } 16020835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis const Expr *getSubExpr() const { return cast<Expr>(Op); } 1603087fd536809ebe754d91c641a98917e02dd7452dDouglas Gregor void setSubExpr(Expr *E) { Op = E; } 1604087fd536809ebe754d91c641a98917e02dd7452dDouglas Gregor 16051eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 16069d293dfc0ad7c44ae0b5eb9517f1ed8c8d8b7ff7Douglas Gregor StmtClass SC = T->getStmtClass(); 16079d293dfc0ad7c44ae0b5eb9517f1ed8c8d8b7ff7Douglas Gregor if (SC >= CXXNamedCastExprClass && SC <= CXXFunctionalCastExprClass) 16089d293dfc0ad7c44ae0b5eb9517f1ed8c8d8b7ff7Douglas Gregor return true; 16099d293dfc0ad7c44ae0b5eb9517f1ed8c8d8b7ff7Douglas Gregor 16106eec8e883de118b431e3ead5b1e604a6ac68ff6bDouglas Gregor if (SC >= ImplicitCastExprClass && SC <= CStyleCastExprClass) 16110835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis return true; 16129d293dfc0ad7c44ae0b5eb9517f1ed8c8d8b7ff7Douglas Gregor 16139d293dfc0ad7c44ae0b5eb9517f1ed8c8d8b7ff7Douglas Gregor return false; 16140835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis } 16150835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis static bool classof(const CastExpr *) { return true; } 16161eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 16170835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis // Iterators 16180835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis virtual child_iterator child_begin(); 16190835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis virtual child_iterator child_end(); 16200835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis}; 16210835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis 162249badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// ImplicitCastExpr - Allows us to explicitly represent implicit type 162349badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// conversions, which have no direct representation in the original 162449badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// source code. For example: converting T[]->T*, void f()->void 162549badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// (*f)(), float->double, short->int, etc. 162649b4526992a8c8a6a290aa3efa9828154a24af8dSteve Naroff/// 1627bf3af056289893f58d37b05a2c80970708781d61Douglas Gregor/// In C, implicit casts always produce rvalues. However, in C++, an 1628bf3af056289893f58d37b05a2c80970708781d61Douglas Gregor/// implicit cast whose result is being bound to a reference will be 1629bf3af056289893f58d37b05a2c80970708781d61Douglas Gregor/// an lvalue. For example: 1630bf3af056289893f58d37b05a2c80970708781d61Douglas Gregor/// 1631bf3af056289893f58d37b05a2c80970708781d61Douglas Gregor/// @code 1632bf3af056289893f58d37b05a2c80970708781d61Douglas Gregor/// class Base { }; 1633bf3af056289893f58d37b05a2c80970708781d61Douglas Gregor/// class Derived : public Base { }; 16341eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// void f(Derived d) { 1635bf3af056289893f58d37b05a2c80970708781d61Douglas Gregor/// Base& b = d; // initializer is an ImplicitCastExpr to an lvalue of type Base 1636bf3af056289893f58d37b05a2c80970708781d61Douglas Gregor/// } 1637bf3af056289893f58d37b05a2c80970708781d61Douglas Gregor/// @endcode 16380835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidisclass ImplicitCastExpr : public CastExpr { 1639eb8f3063257a392f15aea48d42fb73ec51afc548Douglas Gregor /// LvalueCast - Whether this cast produces an lvalue. 1640eb8f3063257a392f15aea48d42fb73ec51afc548Douglas Gregor bool LvalueCast; 1641eb8f3063257a392f15aea48d42fb73ec51afc548Douglas Gregor 164249b4526992a8c8a6a290aa3efa9828154a24af8dSteve Naroffpublic: 1643c0a2fd8f092722c8f78b566ac4506a21437040e9Anders Carlsson ImplicitCastExpr(QualType ty, CastKind kind, Expr *op, bool Lvalue) : 1644c0a2fd8f092722c8f78b566ac4506a21437040e9Anders Carlsson CastExpr(ImplicitCastExprClass, ty, kind, op), LvalueCast(Lvalue) { } 164590045e8ebabf50d6f1b3a67081a621b20b5e5341Steve Naroff 1646087fd536809ebe754d91c641a98917e02dd7452dDouglas Gregor /// \brief Construct an empty implicit cast. 16471eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump explicit ImplicitCastExpr(EmptyShell Shell) 1648087fd536809ebe754d91c641a98917e02dd7452dDouglas Gregor : CastExpr(ImplicitCastExprClass, Shell) { } 1649087fd536809ebe754d91c641a98917e02dd7452dDouglas Gregor 1650087fd536809ebe754d91c641a98917e02dd7452dDouglas Gregor 16510835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis virtual SourceRange getSourceRange() const { 16520835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis return getSubExpr()->getSourceRange(); 16530835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis } 165490045e8ebabf50d6f1b3a67081a621b20b5e5341Steve Naroff 1655eb8f3063257a392f15aea48d42fb73ec51afc548Douglas Gregor /// isLvalueCast - Whether this cast produces an lvalue. 1656eb8f3063257a392f15aea48d42fb73ec51afc548Douglas Gregor bool isLvalueCast() const { return LvalueCast; } 1657eb8f3063257a392f15aea48d42fb73ec51afc548Douglas Gregor 1658eb8f3063257a392f15aea48d42fb73ec51afc548Douglas Gregor /// setLvalueCast - Set whether this cast produces an lvalue. 1659eb8f3063257a392f15aea48d42fb73ec51afc548Douglas Gregor void setLvalueCast(bool Lvalue) { LvalueCast = Lvalue; } 1660eb8f3063257a392f15aea48d42fb73ec51afc548Douglas Gregor 16611eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 16621eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == ImplicitCastExprClass; 166349b4526992a8c8a6a290aa3efa9828154a24af8dSteve Naroff } 166449b4526992a8c8a6a290aa3efa9828154a24af8dSteve Naroff static bool classof(const ImplicitCastExpr *) { return true; } 166549b4526992a8c8a6a290aa3efa9828154a24af8dSteve Naroff}; 166649b4526992a8c8a6a290aa3efa9828154a24af8dSteve Naroff 166749badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// ExplicitCastExpr - An explicit cast written in the source 16681eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// code. 166949badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// 167049badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// This class is effectively an abstract class, because it provides 167149badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// the basic representation of an explicitly-written cast without 167249badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// specifying which kind of cast (C cast, functional cast, static 167349badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// cast, etc.) was written; specific derived classes represent the 167449badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// particular style of cast and its location information. 16755f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 167649badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// Unlike implicit casts, explicit cast nodes have two different 167749badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// types: the type that was written into the source code, and the 167849badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// actual type of the expression as determined by semantic 167949badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// analysis. These types may differ slightly. For example, in C++ one 168049badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// can cast to a reference type, which indicates that the resulting 168149badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// expression will be an lvalue. The reference type, however, will 168249badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// not be used as the type of the expression. 16830835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidisclass ExplicitCastExpr : public CastExpr { 168449badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor /// TypeAsWritten - The type that this expression is casting to, as 168549badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor /// written in the source code. 168649badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor QualType TypeAsWritten; 168749badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor 168849badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregorprotected: 1689c0a2fd8f092722c8f78b566ac4506a21437040e9Anders Carlsson ExplicitCastExpr(StmtClass SC, QualType exprTy, CastKind kind, 16901eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump Expr *op, QualType writtenTy) 1691c0a2fd8f092722c8f78b566ac4506a21437040e9Anders Carlsson : CastExpr(SC, exprTy, kind, op), TypeAsWritten(writtenTy) {} 169249badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor 1693db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor /// \brief Construct an empty explicit cast. 16941eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump ExplicitCastExpr(StmtClass SC, EmptyShell Shell) 1695db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor : CastExpr(SC, Shell) { } 1696db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor 169749badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregorpublic: 169849badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor /// getTypeAsWritten - Returns the type that this expression is 169949badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor /// casting to, as written in the source code. 170049badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor QualType getTypeAsWritten() const { return TypeAsWritten; } 1701db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor void setTypeAsWritten(QualType T) { TypeAsWritten = T; } 170249badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor 17031eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 17049d293dfc0ad7c44ae0b5eb9517f1ed8c8d8b7ff7Douglas Gregor StmtClass SC = T->getStmtClass(); 17056eec8e883de118b431e3ead5b1e604a6ac68ff6bDouglas Gregor if (SC >= ExplicitCastExprClass && SC <= CStyleCastExprClass) 17069d293dfc0ad7c44ae0b5eb9517f1ed8c8d8b7ff7Douglas Gregor return true; 17079d293dfc0ad7c44ae0b5eb9517f1ed8c8d8b7ff7Douglas Gregor if (SC >= CXXNamedCastExprClass && SC <= CXXFunctionalCastExprClass) 170849badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor return true; 17099d293dfc0ad7c44ae0b5eb9517f1ed8c8d8b7ff7Douglas Gregor 17109d293dfc0ad7c44ae0b5eb9517f1ed8c8d8b7ff7Douglas Gregor return false; 171149badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor } 171249badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor static bool classof(const ExplicitCastExpr *) { return true; } 171349badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor}; 171449badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor 17156eec8e883de118b431e3ead5b1e604a6ac68ff6bDouglas Gregor/// CStyleCastExpr - An explicit cast in C (C99 6.5.4) or a C-style 171649badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// cast in C++ (C++ [expr.cast]), which uses the syntax 171749badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// (Type)expr. For example: @c (int)f. 17186eec8e883de118b431e3ead5b1e604a6ac68ff6bDouglas Gregorclass CStyleCastExpr : public ExplicitCastExpr { 1719b2f9e516327310d95840d442416084508f80c183Steve Naroff SourceLocation LPLoc; // the location of the left paren 1720b2f9e516327310d95840d442416084508f80c183Steve Naroff SourceLocation RPLoc; // the location of the right paren 17215f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 17221eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump CStyleCastExpr(QualType exprTy, CastKind kind, Expr *op, QualType writtenTy, 17231eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump SourceLocation l, SourceLocation r) : 17241eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump ExplicitCastExpr(CStyleCastExprClass, exprTy, kind, op, writtenTy), 1725b2f9e516327310d95840d442416084508f80c183Steve Naroff LPLoc(l), RPLoc(r) {} 172649b4526992a8c8a6a290aa3efa9828154a24af8dSteve Naroff 1727db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor /// \brief Construct an empty C-style explicit cast. 17281eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump explicit CStyleCastExpr(EmptyShell Shell) 1729db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor : ExplicitCastExpr(CStyleCastExprClass, Shell) { } 1730db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor 1731b2f9e516327310d95840d442416084508f80c183Steve Naroff SourceLocation getLParenLoc() const { return LPLoc; } 1732db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor void setLParenLoc(SourceLocation L) { LPLoc = L; } 1733db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor 1734b2f9e516327310d95840d442416084508f80c183Steve Naroff SourceLocation getRParenLoc() const { return RPLoc; } 1735db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor void setRParenLoc(SourceLocation L) { RPLoc = L; } 1736db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor 17375f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer virtual SourceRange getSourceRange() const { 1738b2f9e516327310d95840d442416084508f80c183Steve Naroff return SourceRange(LPLoc, getSubExpr()->getSourceRange().getEnd()); 17395f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 17401eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 17411eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == CStyleCastExprClass; 17425f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 17436eec8e883de118b431e3ead5b1e604a6ac68ff6bDouglas Gregor static bool classof(const CStyleCastExpr *) { return true; } 17445f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 17455f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 17463fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// \brief A builtin binary operation expression such as "x + y" or "x <= y". 17473fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// 17483fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// This expression node kind describes a builtin binary operation, 17493fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// such as "x + y" for integer values "x" and "y". The operands will 17503fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// already have been converted to appropriate types (e.g., by 17513fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// performing promotions or conversions). 17523fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// 17533fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// In C++, where operators may be overloaded, a different kind of 17543fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// expression node (CXXOperatorCallExpr) is used to express the 17553fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// invocation of an overloaded operator with operator syntax. Within 17563fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// a C++ template, whether BinaryOperator or CXXOperatorCallExpr is 17573fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// used to store an expression "x + y" depends on the subexpressions 17583fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// for x and y. If neither x or y is type-dependent, and the "+" 17593fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// operator resolves to a built-in operation, BinaryOperator will be 17603fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// used to express the computation (x and y may still be 17613fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// value-dependent). If either x or y is type-dependent, or if the 17623fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// "+" resolves to an overloaded operator, CXXOperatorCallExpr will 17633fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// be used to express the computation. 17645f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass BinaryOperator : public Expr { 17655f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 17665f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer enum Opcode { 17675f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Operators listed in order of precedence. 176803d6fb99224c36935c9af9f4785cb33453c99b2bChris Lattner // Note that additions to this should also update the StmtVisitor class. 1769224605064a4ef87d1c3d35ad1cb363f8b534012bSebastian Redl PtrMemD, PtrMemI, // [C++ 5.5] Pointer-to-member operators. 17705f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Mul, Div, Rem, // [C99 6.5.5] Multiplicative operators. 17715f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Add, Sub, // [C99 6.5.6] Additive operators. 17725f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Shl, Shr, // [C99 6.5.7] Bitwise shift operators. 17735f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer LT, GT, LE, GE, // [C99 6.5.8] Relational operators. 17745f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer EQ, NE, // [C99 6.5.9] Equality operators. 17755f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer And, // [C99 6.5.10] Bitwise AND operator. 17765f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Xor, // [C99 6.5.11] Bitwise XOR operator. 17775f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Or, // [C99 6.5.12] Bitwise OR operator. 17785f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer LAnd, // [C99 6.5.13] Logical AND operator. 17795f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer LOr, // [C99 6.5.14] Logical OR operator. 17805f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Assign, MulAssign,// [C99 6.5.16] Assignment operators. 17815f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer DivAssign, RemAssign, 17825f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer AddAssign, SubAssign, 17835f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ShlAssign, ShrAssign, 17845f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer AndAssign, XorAssign, 17855f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer OrAssign, 17865f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Comma // [C99 6.5.17] Comma operator. 17875f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer }; 178817d1b2ac9f8371a0a2e79d4f8e0008658164f080Chris Lattnerprivate: 178917d1b2ac9f8371a0a2e79d4f8e0008658164f080Chris Lattner enum { LHS, RHS, END_EXPR }; 17905549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Stmt* SubExprs[END_EXPR]; 179117d1b2ac9f8371a0a2e79d4f8e0008658164f080Chris Lattner Opcode Opc; 179217d1b2ac9f8371a0a2e79d4f8e0008658164f080Chris Lattner SourceLocation OpLoc; 17931eb4433ac451dc16f4133a88af2d002ac26c58efMike Stumppublic: 17941eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 179517d1b2ac9f8371a0a2e79d4f8e0008658164f080Chris Lattner BinaryOperator(Expr *lhs, Expr *rhs, Opcode opc, QualType ResTy, 179617d1b2ac9f8371a0a2e79d4f8e0008658164f080Chris Lattner SourceLocation opLoc) 1797898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor : Expr(BinaryOperatorClass, ResTy, 1798898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor lhs->isTypeDependent() || rhs->isTypeDependent(), 17991eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump lhs->isValueDependent() || rhs->isValueDependent()), 1800898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor Opc(opc), OpLoc(opLoc) { 18011237c673c07f9d827129ba02720108816abde562Ted Kremenek SubExprs[LHS] = lhs; 18021237c673c07f9d827129ba02720108816abde562Ted Kremenek SubExprs[RHS] = rhs; 18031eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump assert(!isCompoundAssignmentOp() && 18045f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer "Use ArithAssignBinaryOperator for compound assignments"); 18055f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 18065f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1807db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor /// \brief Construct an empty binary operator. 18081eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump explicit BinaryOperator(EmptyShell Empty) 1809db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor : Expr(BinaryOperatorClass, Empty), Opc(Comma) { } 1810db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor 181117d1b2ac9f8371a0a2e79d4f8e0008658164f080Chris Lattner SourceLocation getOperatorLoc() const { return OpLoc; } 1812db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor void setOperatorLoc(SourceLocation L) { OpLoc = L; } 1813db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor 18145f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Opcode getOpcode() const { return Opc; } 1815db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor void setOpcode(Opcode O) { Opc = O; } 1816db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor 18175549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getLHS() const { return cast<Expr>(SubExprs[LHS]); } 1818db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor void setLHS(Expr *E) { SubExprs[LHS] = E; } 18195549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getRHS() const { return cast<Expr>(SubExprs[RHS]); } 1820db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor void setRHS(Expr *E) { SubExprs[RHS] = E; } 1821db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor 18225f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer virtual SourceRange getSourceRange() const { 18235f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return SourceRange(getLHS()->getLocStart(), getRHS()->getLocEnd()); 18245f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 18251eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 18265f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// getOpcodeStr - Turn an Opcode enum value into the punctuation char it 18275f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// corresponds to, e.g. "<<=". 18285f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static const char *getOpcodeStr(Opcode Op); 18295f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1830063daf6e196c51f162e0485478355d8e280eef5cDouglas Gregor /// \brief Retrieve the binary opcode that corresponds to the given 1831063daf6e196c51f162e0485478355d8e280eef5cDouglas Gregor /// overloaded operator. 1832063daf6e196c51f162e0485478355d8e280eef5cDouglas Gregor static Opcode getOverloadedOpcode(OverloadedOperatorKind OO); 1833063daf6e196c51f162e0485478355d8e280eef5cDouglas Gregor 1834063daf6e196c51f162e0485478355d8e280eef5cDouglas Gregor /// \brief Retrieve the overloaded operator kind that corresponds to 1835063daf6e196c51f162e0485478355d8e280eef5cDouglas Gregor /// the given binary opcode. 1836063daf6e196c51f162e0485478355d8e280eef5cDouglas Gregor static OverloadedOperatorKind getOverloadedOperator(Opcode Opc); 1837063daf6e196c51f162e0485478355d8e280eef5cDouglas Gregor 18385f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// predicates to categorize the respective opcodes. 18395f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool isMultiplicativeOp() const { return Opc >= Mul && Opc <= Rem; } 18405f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool isAdditiveOp() const { return Opc == Add || Opc == Sub; } 184140a5ef90ac8d3f29bc8fe4ff80e00eaf3ef5b79fTed Kremenek static bool isShiftOp(Opcode Opc) { return Opc == Shl || Opc == Shr; } 184240a5ef90ac8d3f29bc8fe4ff80e00eaf3ef5b79fTed Kremenek bool isShiftOp() const { return isShiftOp(Opc); } 1843aee3c9375f97a49edef2a36f15df6abd9748e2a1Sebastian Redl 1844aee3c9375f97a49edef2a36f15df6abd9748e2a1Sebastian Redl static bool isBitwiseOp(Opcode Opc) { return Opc >= And && Opc <= Or; } 1845aee3c9375f97a49edef2a36f15df6abd9748e2a1Sebastian Redl bool isBitwiseOp() const { return isBitwiseOp(Opc); } 1846f2da7a06f6b98c3886d9b871ab839f5085b1c238Ted Kremenek 1847f2da7a06f6b98c3886d9b871ab839f5085b1c238Ted Kremenek static bool isRelationalOp(Opcode Opc) { return Opc >= LT && Opc <= GE; } 1848f2da7a06f6b98c3886d9b871ab839f5085b1c238Ted Kremenek bool isRelationalOp() const { return isRelationalOp(Opc); } 1849f2da7a06f6b98c3886d9b871ab839f5085b1c238Ted Kremenek 18501eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool isEqualityOp(Opcode Opc) { return Opc == EQ || Opc == NE; } 1851f2da7a06f6b98c3886d9b871ab839f5085b1c238Ted Kremenek bool isEqualityOp() const { return isEqualityOp(Opc); } 18521eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1853aee3c9375f97a49edef2a36f15df6abd9748e2a1Sebastian Redl static bool isComparisonOp(Opcode Opc) { return Opc >= LT && Opc <= NE; } 1854aee3c9375f97a49edef2a36f15df6abd9748e2a1Sebastian Redl bool isComparisonOp() const { return isComparisonOp(Opc); } 1855aee3c9375f97a49edef2a36f15df6abd9748e2a1Sebastian Redl 1856f2da7a06f6b98c3886d9b871ab839f5085b1c238Ted Kremenek static bool isLogicalOp(Opcode Opc) { return Opc == LAnd || Opc == LOr; } 1857f2da7a06f6b98c3886d9b871ab839f5085b1c238Ted Kremenek bool isLogicalOp() const { return isLogicalOp(Opc); } 1858f2da7a06f6b98c3886d9b871ab839f5085b1c238Ted Kremenek 18595f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool isAssignmentOp() const { return Opc >= Assign && Opc <= OrAssign; } 18605f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool isCompoundAssignmentOp() const { return Opc > Assign && Opc <= OrAssign;} 18615f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool isShiftAssignOp() const { return Opc == ShlAssign || Opc == ShrAssign; } 18621eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 18631eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *S) { 1864eb14fe839ec24c2ca14e5f094be147a34e3d3339Chris Lattner return S->getStmtClass() == BinaryOperatorClass || 18651eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump S->getStmtClass() == CompoundAssignOperatorClass; 18665f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 18675f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const BinaryOperator *) { return true; } 18681237c673c07f9d827129ba02720108816abde562Ted Kremenek 18691237c673c07f9d827129ba02720108816abde562Ted Kremenek // Iterators 18701237c673c07f9d827129ba02720108816abde562Ted Kremenek virtual child_iterator child_begin(); 18711237c673c07f9d827129ba02720108816abde562Ted Kremenek virtual child_iterator child_end(); 18721237c673c07f9d827129ba02720108816abde562Ted Kremenek 18735f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerprotected: 187417d1b2ac9f8371a0a2e79d4f8e0008658164f080Chris Lattner BinaryOperator(Expr *lhs, Expr *rhs, Opcode opc, QualType ResTy, 187517d1b2ac9f8371a0a2e79d4f8e0008658164f080Chris Lattner SourceLocation oploc, bool dead) 187617d1b2ac9f8371a0a2e79d4f8e0008658164f080Chris Lattner : Expr(CompoundAssignOperatorClass, ResTy), Opc(opc), OpLoc(oploc) { 18771237c673c07f9d827129ba02720108816abde562Ted Kremenek SubExprs[LHS] = lhs; 18781237c673c07f9d827129ba02720108816abde562Ted Kremenek SubExprs[RHS] = rhs; 18795f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 1880ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor 18811eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump BinaryOperator(StmtClass SC, EmptyShell Empty) 1882ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor : Expr(SC, Empty), Opc(MulAssign) { } 18835f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 18845f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 18855f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// CompoundAssignOperator - For compound assignments (e.g. +=), we keep 18865f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// track of the type the operation is performed in. Due to the semantics of 18875f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// these operators, the operands are promoted, the aritmetic performed, an 18885f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// implicit conversion back to the result type done, then the assignment takes 18895f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// place. This captures the intermediate type which the computation is done 18905f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// in. 18915f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass CompoundAssignOperator : public BinaryOperator { 1892ab3a852ae713189444dcbf75e70accf1e8c2b7f2Eli Friedman QualType ComputationLHSType; 1893ab3a852ae713189444dcbf75e70accf1e8c2b7f2Eli Friedman QualType ComputationResultType; 18945f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 18955f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer CompoundAssignOperator(Expr *lhs, Expr *rhs, Opcode opc, 1896ab3a852ae713189444dcbf75e70accf1e8c2b7f2Eli Friedman QualType ResType, QualType CompLHSType, 1897ab3a852ae713189444dcbf75e70accf1e8c2b7f2Eli Friedman QualType CompResultType, 189817d1b2ac9f8371a0a2e79d4f8e0008658164f080Chris Lattner SourceLocation OpLoc) 189917d1b2ac9f8371a0a2e79d4f8e0008658164f080Chris Lattner : BinaryOperator(lhs, rhs, opc, ResType, OpLoc, true), 1900ab3a852ae713189444dcbf75e70accf1e8c2b7f2Eli Friedman ComputationLHSType(CompLHSType), 1901ab3a852ae713189444dcbf75e70accf1e8c2b7f2Eli Friedman ComputationResultType(CompResultType) { 19021eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump assert(isCompoundAssignmentOp() && 19035f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer "Only should be used for compound assignments"); 19045f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 19055f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1906ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor /// \brief Build an empty compound assignment operator expression. 1907ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor explicit CompoundAssignOperator(EmptyShell Empty) 1908ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor : BinaryOperator(CompoundAssignOperatorClass, Empty) { } 1909ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor 1910ab3a852ae713189444dcbf75e70accf1e8c2b7f2Eli Friedman // The two computation types are the type the LHS is converted 1911ab3a852ae713189444dcbf75e70accf1e8c2b7f2Eli Friedman // to for the computation and the type of the result; the two are 1912ab3a852ae713189444dcbf75e70accf1e8c2b7f2Eli Friedman // distinct in a few cases (specifically, int+=ptr and ptr-=ptr). 1913ab3a852ae713189444dcbf75e70accf1e8c2b7f2Eli Friedman QualType getComputationLHSType() const { return ComputationLHSType; } 1914ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor void setComputationLHSType(QualType T) { ComputationLHSType = T; } 1915ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor 1916ab3a852ae713189444dcbf75e70accf1e8c2b7f2Eli Friedman QualType getComputationResultType() const { return ComputationResultType; } 1917ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor void setComputationResultType(QualType T) { ComputationResultType = T; } 1918ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor 19195f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const CompoundAssignOperator *) { return true; } 19201eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *S) { 19211eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return S->getStmtClass() == CompoundAssignOperatorClass; 19225f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 19235f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 19245f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 19255f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// ConditionalOperator - The ?: operator. Note that LHS may be null when the 19265f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// GNU "missing LHS" extension is in use. 19275f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 19285f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass ConditionalOperator : public Expr { 19291237c673c07f9d827129ba02720108816abde562Ted Kremenek enum { COND, LHS, RHS, END_EXPR }; 19305549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Stmt* SubExprs[END_EXPR]; // Left/Middle/Right hand sides. 193147e1f7c68bf375cac470fdb2b599ddbb395aeb52Douglas Gregor SourceLocation QuestionLoc, ColonLoc; 19325f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 193347e1f7c68bf375cac470fdb2b599ddbb395aeb52Douglas Gregor ConditionalOperator(Expr *cond, SourceLocation QLoc, Expr *lhs, 193447e1f7c68bf375cac470fdb2b599ddbb395aeb52Douglas Gregor SourceLocation CLoc, Expr *rhs, QualType t) 1935898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor : Expr(ConditionalOperatorClass, t, 1936898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // FIXME: the type of the conditional operator doesn't 1937898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // depend on the type of the conditional, but the standard 1938898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // seems to imply that it could. File a bug! 1939898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor ((lhs && lhs->isTypeDependent()) || (rhs && rhs->isTypeDependent())), 19401eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump (cond->isValueDependent() || 1941898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor (lhs && lhs->isValueDependent()) || 194247e1f7c68bf375cac470fdb2b599ddbb395aeb52Douglas Gregor (rhs && rhs->isValueDependent()))), 194347e1f7c68bf375cac470fdb2b599ddbb395aeb52Douglas Gregor QuestionLoc(QLoc), 194447e1f7c68bf375cac470fdb2b599ddbb395aeb52Douglas Gregor ColonLoc(CLoc) { 19451237c673c07f9d827129ba02720108816abde562Ted Kremenek SubExprs[COND] = cond; 19461237c673c07f9d827129ba02720108816abde562Ted Kremenek SubExprs[LHS] = lhs; 19471237c673c07f9d827129ba02720108816abde562Ted Kremenek SubExprs[RHS] = rhs; 19481237c673c07f9d827129ba02720108816abde562Ted Kremenek } 19495f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1950ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor /// \brief Build an empty conditional operator. 1951ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor explicit ConditionalOperator(EmptyShell Empty) 1952ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor : Expr(ConditionalOperatorClass, Empty) { } 1953ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor 1954395a2abf0028968d85958610e393e067885dc14fTed Kremenek // getCond - Return the expression representing the condition for 1955395a2abf0028968d85958610e393e067885dc14fTed Kremenek // the ?: operator. 19565549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getCond() const { return cast<Expr>(SubExprs[COND]); } 1957ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor void setCond(Expr *E) { SubExprs[COND] = E; } 1958395a2abf0028968d85958610e393e067885dc14fTed Kremenek 1959395a2abf0028968d85958610e393e067885dc14fTed Kremenek // getTrueExpr - Return the subexpression representing the value of the ?: 1960395a2abf0028968d85958610e393e067885dc14fTed Kremenek // expression if the condition evaluates to true. In most cases this value 1961395a2abf0028968d85958610e393e067885dc14fTed Kremenek // will be the same as getLHS() except a GCC extension allows the left 1962395a2abf0028968d85958610e393e067885dc14fTed Kremenek // subexpression to be omitted, and instead of the condition be returned. 1963395a2abf0028968d85958610e393e067885dc14fTed Kremenek // e.g: x ?: y is shorthand for x ? x : y, except that the expression "x" 19641eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // is only evaluated once. 1965395a2abf0028968d85958610e393e067885dc14fTed Kremenek Expr *getTrueExpr() const { 19665549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek return cast<Expr>(SubExprs[LHS] ? SubExprs[LHS] : SubExprs[COND]); 1967395a2abf0028968d85958610e393e067885dc14fTed Kremenek } 19681eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1969395a2abf0028968d85958610e393e067885dc14fTed Kremenek // getTrueExpr - Return the subexpression representing the value of the ?: 1970395a2abf0028968d85958610e393e067885dc14fTed Kremenek // expression if the condition evaluates to false. This is the same as getRHS. 19715549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getFalseExpr() const { return cast<Expr>(SubExprs[RHS]); } 19721eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 19735549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getLHS() const { return cast_or_null<Expr>(SubExprs[LHS]); } 1974ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor void setLHS(Expr *E) { SubExprs[LHS] = E; } 1975ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor 19765549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getRHS() const { return cast<Expr>(SubExprs[RHS]); } 1977ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor void setRHS(Expr *E) { SubExprs[RHS] = E; } 19785f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 197947e1f7c68bf375cac470fdb2b599ddbb395aeb52Douglas Gregor SourceLocation getQuestionLoc() const { return QuestionLoc; } 198047e1f7c68bf375cac470fdb2b599ddbb395aeb52Douglas Gregor void setQuestionLoc(SourceLocation L) { QuestionLoc = L; } 198147e1f7c68bf375cac470fdb2b599ddbb395aeb52Douglas Gregor 198247e1f7c68bf375cac470fdb2b599ddbb395aeb52Douglas Gregor SourceLocation getColonLoc() const { return ColonLoc; } 198347e1f7c68bf375cac470fdb2b599ddbb395aeb52Douglas Gregor void setColonLoc(SourceLocation L) { ColonLoc = L; } 198447e1f7c68bf375cac470fdb2b599ddbb395aeb52Douglas Gregor 19855f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer virtual SourceRange getSourceRange() const { 19865f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return SourceRange(getCond()->getLocStart(), getRHS()->getLocEnd()); 19875f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 19881eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 19891eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == ConditionalOperatorClass; 19905f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 19915f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const ConditionalOperator *) { return true; } 19921eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 19931237c673c07f9d827129ba02720108816abde562Ted Kremenek // Iterators 19941237c673c07f9d827129ba02720108816abde562Ted Kremenek virtual child_iterator child_begin(); 19951237c673c07f9d827129ba02720108816abde562Ted Kremenek virtual child_iterator child_end(); 19965f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 19975f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 19986481a57fefbf1a313ff439028470fe4c27a3b7a3Chris Lattner/// AddrLabelExpr - The GNU address of label extension, representing &&label. 19996481a57fefbf1a313ff439028470fe4c27a3b7a3Chris Lattnerclass AddrLabelExpr : public Expr { 20005f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation AmpAmpLoc, LabelLoc; 20015f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer LabelStmt *Label; 20025f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 20036481a57fefbf1a313ff439028470fe4c27a3b7a3Chris Lattner AddrLabelExpr(SourceLocation AALoc, SourceLocation LLoc, LabelStmt *L, 20046481a57fefbf1a313ff439028470fe4c27a3b7a3Chris Lattner QualType t) 20056481a57fefbf1a313ff439028470fe4c27a3b7a3Chris Lattner : Expr(AddrLabelExprClass, t), AmpAmpLoc(AALoc), LabelLoc(LLoc), Label(L) {} 20061eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 20077d5c2f241c74e5f8d9ec492e8f9f268e5e9ae41fDouglas Gregor /// \brief Build an empty address of a label expression. 20081eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump explicit AddrLabelExpr(EmptyShell Empty) 20097d5c2f241c74e5f8d9ec492e8f9f268e5e9ae41fDouglas Gregor : Expr(AddrLabelExprClass, Empty) { } 20107d5c2f241c74e5f8d9ec492e8f9f268e5e9ae41fDouglas Gregor 20117d5c2f241c74e5f8d9ec492e8f9f268e5e9ae41fDouglas Gregor SourceLocation getAmpAmpLoc() const { return AmpAmpLoc; } 20127d5c2f241c74e5f8d9ec492e8f9f268e5e9ae41fDouglas Gregor void setAmpAmpLoc(SourceLocation L) { AmpAmpLoc = L; } 20137d5c2f241c74e5f8d9ec492e8f9f268e5e9ae41fDouglas Gregor SourceLocation getLabelLoc() const { return LabelLoc; } 20147d5c2f241c74e5f8d9ec492e8f9f268e5e9ae41fDouglas Gregor void setLabelLoc(SourceLocation L) { LabelLoc = L; } 20157d5c2f241c74e5f8d9ec492e8f9f268e5e9ae41fDouglas Gregor 20165f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer virtual SourceRange getSourceRange() const { 20175f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return SourceRange(AmpAmpLoc, LabelLoc); 20185f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 20191eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 20205f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer LabelStmt *getLabel() const { return Label; } 20217d5c2f241c74e5f8d9ec492e8f9f268e5e9ae41fDouglas Gregor void setLabel(LabelStmt *S) { Label = S; } 20227d5c2f241c74e5f8d9ec492e8f9f268e5e9ae41fDouglas Gregor 20235f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const Stmt *T) { 20241eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == AddrLabelExprClass; 20255f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 20266481a57fefbf1a313ff439028470fe4c27a3b7a3Chris Lattner static bool classof(const AddrLabelExpr *) { return true; } 20271eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 20281237c673c07f9d827129ba02720108816abde562Ted Kremenek // Iterators 20291237c673c07f9d827129ba02720108816abde562Ted Kremenek virtual child_iterator child_begin(); 20301237c673c07f9d827129ba02720108816abde562Ted Kremenek virtual child_iterator child_end(); 20315f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 2032ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner 2033ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner/// StmtExpr - This is the GNU Statement Expression extension: ({int X=4; X;}). 2034ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner/// The StmtExpr contains a single CompoundStmt node, which it evaluates and 2035ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner/// takes the value of the last subexpression. 2036ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattnerclass StmtExpr : public Expr { 20375549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Stmt *SubStmt; 2038ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner SourceLocation LParenLoc, RParenLoc; 2039ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattnerpublic: 2040d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroff StmtExpr(CompoundStmt *substmt, QualType T, 2041d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroff SourceLocation lp, SourceLocation rp) : 2042d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroff Expr(StmtExprClass, T), SubStmt(substmt), LParenLoc(lp), RParenLoc(rp) { } 20431eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 20446a2dd55b0b3ae376d449a4b07bbb6b2d30b26330Douglas Gregor /// \brief Build an empty statement expression. 20456a2dd55b0b3ae376d449a4b07bbb6b2d30b26330Douglas Gregor explicit StmtExpr(EmptyShell Empty) : Expr(StmtExprClass, Empty) { } 20466a2dd55b0b3ae376d449a4b07bbb6b2d30b26330Douglas Gregor 20475549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek CompoundStmt *getSubStmt() { return cast<CompoundStmt>(SubStmt); } 20485549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek const CompoundStmt *getSubStmt() const { return cast<CompoundStmt>(SubStmt); } 20496a2dd55b0b3ae376d449a4b07bbb6b2d30b26330Douglas Gregor void setSubStmt(CompoundStmt *S) { SubStmt = S; } 20506a2dd55b0b3ae376d449a4b07bbb6b2d30b26330Douglas Gregor 2051ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner virtual SourceRange getSourceRange() const { 2052ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner return SourceRange(LParenLoc, RParenLoc); 2053ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner } 20541eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2055026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner SourceLocation getLParenLoc() const { return LParenLoc; } 20566a2dd55b0b3ae376d449a4b07bbb6b2d30b26330Douglas Gregor void setLParenLoc(SourceLocation L) { LParenLoc = L; } 2057026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner SourceLocation getRParenLoc() const { return RParenLoc; } 20586a2dd55b0b3ae376d449a4b07bbb6b2d30b26330Douglas Gregor void setRParenLoc(SourceLocation L) { RParenLoc = L; } 20591eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2060ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner static bool classof(const Stmt *T) { 20611eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == StmtExprClass; 2062ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner } 2063ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner static bool classof(const StmtExpr *) { return true; } 20641eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 20651237c673c07f9d827129ba02720108816abde562Ted Kremenek // Iterators 20661237c673c07f9d827129ba02720108816abde562Ted Kremenek virtual child_iterator child_begin(); 20671237c673c07f9d827129ba02720108816abde562Ted Kremenek virtual child_iterator child_end(); 2068ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner}; 2069ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner 2070dc241b42c7588f99027b035a09b71557a6db219eDouglas Gregor/// TypesCompatibleExpr - GNU builtin-in function __builtin_types_compatible_p. 2071d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroff/// This AST node represents a function that returns 1 if two *types* (not 2072d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroff/// expressions) are compatible. The result of this built-in function can be 2073d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroff/// used in integer constant expressions. 2074d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroffclass TypesCompatibleExpr : public Expr { 2075d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroff QualType Type1; 2076d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroff QualType Type2; 2077363bcff47df2fda3cfcfcd994b7888157df58c43Steve Naroff SourceLocation BuiltinLoc, RParenLoc; 2078d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroffpublic: 20791eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump TypesCompatibleExpr(QualType ReturnType, SourceLocation BLoc, 20801eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump QualType t1, QualType t2, SourceLocation RP) : 2081d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroff Expr(TypesCompatibleExprClass, ReturnType), Type1(t1), Type2(t2), 2082363bcff47df2fda3cfcfcd994b7888157df58c43Steve Naroff BuiltinLoc(BLoc), RParenLoc(RP) {} 2083d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroff 208444cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor /// \brief Build an empty __builtin_type_compatible_p expression. 208544cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor explicit TypesCompatibleExpr(EmptyShell Empty) 208644cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor : Expr(TypesCompatibleExprClass, Empty) { } 208744cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor 20887f28fe8e00ec4fac17977374d8da491f873a3b05Steve Naroff QualType getArgType1() const { return Type1; } 208944cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor void setArgType1(QualType T) { Type1 = T; } 20907f28fe8e00ec4fac17977374d8da491f873a3b05Steve Naroff QualType getArgType2() const { return Type2; } 209144cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor void setArgType2(QualType T) { Type2 = T; } 20921eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 209344cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor SourceLocation getBuiltinLoc() const { return BuiltinLoc; } 209444cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor void setBuiltinLoc(SourceLocation L) { BuiltinLoc = L; } 20951eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 209644cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor SourceLocation getRParenLoc() const { return RParenLoc; } 209744cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor void setRParenLoc(SourceLocation L) { RParenLoc = L; } 20981eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2099d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroff virtual SourceRange getSourceRange() const { 2100363bcff47df2fda3cfcfcd994b7888157df58c43Steve Naroff return SourceRange(BuiltinLoc, RParenLoc); 2101d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroff } 2102d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroff static bool classof(const Stmt *T) { 21031eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == TypesCompatibleExprClass; 2104d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroff } 2105d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroff static bool classof(const TypesCompatibleExpr *) { return true; } 21061eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 21071237c673c07f9d827129ba02720108816abde562Ted Kremenek // Iterators 21081237c673c07f9d827129ba02720108816abde562Ted Kremenek virtual child_iterator child_begin(); 21091237c673c07f9d827129ba02720108816abde562Ted Kremenek virtual child_iterator child_end(); 2110d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroff}; 2111d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroff 2112d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman/// ShuffleVectorExpr - clang-specific builtin-in function 2113d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman/// __builtin_shufflevector. 2114d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman/// This AST node represents a operator that does a constant 2115d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman/// shuffle, similar to LLVM's shufflevector instruction. It takes 2116d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman/// two vectors and a variable number of constant indices, 2117d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman/// and returns the appropriately shuffled vector. 2118d38617c8a50f9729c254ab76cd359af797c6739bEli Friedmanclass ShuffleVectorExpr : public Expr { 2119d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman SourceLocation BuiltinLoc, RParenLoc; 2120d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman 2121d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman // SubExprs - the list of values passed to the __builtin_shufflevector 2122d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman // function. The first two are vectors, and the rest are constant 2123d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman // indices. The number of values in this list is always 2124d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman // 2+the number of indices in the vector type. 21255549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Stmt **SubExprs; 2126d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman unsigned NumExprs; 2127d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman 2128888376a2bbcfc2f047902249f8455918e2489ae1Nate Begemanprotected: 21291eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump virtual void DoDestroy(ASTContext &C); 2130888376a2bbcfc2f047902249f8455918e2489ae1Nate Begeman 2131d38617c8a50f9729c254ab76cd359af797c6739bEli Friedmanpublic: 2132a88dc3079bedf70a5cfc39791727e43a10383006Nate Begeman ShuffleVectorExpr(ASTContext &C, Expr **args, unsigned nexpr, 21331eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump QualType Type, SourceLocation BLoc, 21341eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump SourceLocation RP) : 2135d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman Expr(ShuffleVectorExprClass, Type), BuiltinLoc(BLoc), 2136f809e3bd0c3d063f22ba34981072dae306ca9272Ted Kremenek RParenLoc(RP), NumExprs(nexpr) { 21371eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2138a88dc3079bedf70a5cfc39791727e43a10383006Nate Begeman SubExprs = new (C) Stmt*[nexpr]; 2139d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman for (unsigned i = 0; i < nexpr; i++) 2140d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman SubExprs[i] = args[i]; 2141d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman } 214294cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor 214394cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor /// \brief Build an empty vector-shuffle expression. 21441eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump explicit ShuffleVectorExpr(EmptyShell Empty) 214594cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor : Expr(ShuffleVectorExprClass, Empty), SubExprs(0) { } 214694cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor 214794cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor SourceLocation getBuiltinLoc() const { return BuiltinLoc; } 214894cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor void setBuiltinLoc(SourceLocation L) { BuiltinLoc = L; } 21491eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 215094cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor SourceLocation getRParenLoc() const { return RParenLoc; } 215194cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor void setRParenLoc(SourceLocation L) { RParenLoc = L; } 215294cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor 2153d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman virtual SourceRange getSourceRange() const { 2154d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman return SourceRange(BuiltinLoc, RParenLoc); 2155d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman } 2156d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman static bool classof(const Stmt *T) { 21571eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == ShuffleVectorExprClass; 2158d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman } 2159d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman static bool classof(const ShuffleVectorExpr *) { return true; } 21601eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2161888376a2bbcfc2f047902249f8455918e2489ae1Nate Begeman ~ShuffleVectorExpr() {} 21621eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2163d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman /// getNumSubExprs - Return the size of the SubExprs array. This includes the 2164d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman /// constant expression, the actual arguments passed in, and the function 2165d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman /// pointers. 2166d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman unsigned getNumSubExprs() const { return NumExprs; } 21671eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2168d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman /// getExpr - Return the Expr at the specified index. 2169d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman Expr *getExpr(unsigned Index) { 2170d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman assert((Index < NumExprs) && "Arg access out of range!"); 21715549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek return cast<Expr>(SubExprs[Index]); 2172d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman } 2173d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman const Expr *getExpr(unsigned Index) const { 2174d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman assert((Index < NumExprs) && "Arg access out of range!"); 21755549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek return cast<Expr>(SubExprs[Index]); 2176d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman } 21771eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2178888376a2bbcfc2f047902249f8455918e2489ae1Nate Begeman void setExprs(ASTContext &C, Expr ** Exprs, unsigned NumExprs); 217994cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor 2180dde8c94873976632e3ada4d8d067e1e244184d51Eli Friedman unsigned getShuffleMaskIdx(ASTContext &Ctx, unsigned N) { 2181dde8c94873976632e3ada4d8d067e1e244184d51Eli Friedman assert((N < NumExprs - 2) && "Shuffle idx out of range!"); 21829a901bb63990574ff0bcc12ff851d7a71cff8ddbEli Friedman return getExpr(N+2)->EvaluateAsInt(Ctx).getZExtValue(); 2183d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman } 21841eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2185d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman // Iterators 2186d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman virtual child_iterator child_begin(); 2187d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman virtual child_iterator child_end(); 2188d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman}; 2189d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman 2190d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff/// ChooseExpr - GNU builtin-in function __builtin_choose_expr. 21911eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// This AST node is similar to the conditional operator (?:) in C, with 2192d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff/// the following exceptions: 21937976932a1c256d447316ffac58e9821417725e34Eli Friedman/// - the test expression must be a integer constant expression. 21947976932a1c256d447316ffac58e9821417725e34Eli Friedman/// - the expression returned acts like the chosen subexpression in every 21957976932a1c256d447316ffac58e9821417725e34Eli Friedman/// visible way: the type is the same as that of the chosen subexpression, 21967976932a1c256d447316ffac58e9821417725e34Eli Friedman/// and all predicates (whether it's an l-value, whether it's an integer 21977976932a1c256d447316ffac58e9821417725e34Eli Friedman/// constant expression, etc.) return the same result as for the chosen 21987976932a1c256d447316ffac58e9821417725e34Eli Friedman/// sub-expression. 2199d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroffclass ChooseExpr : public Expr { 22001237c673c07f9d827129ba02720108816abde562Ted Kremenek enum { COND, LHS, RHS, END_EXPR }; 22015549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Stmt* SubExprs[END_EXPR]; // Left/Middle/Right hand sides. 2202d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff SourceLocation BuiltinLoc, RParenLoc; 2203d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroffpublic: 2204d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff ChooseExpr(SourceLocation BLoc, Expr *cond, Expr *lhs, Expr *rhs, QualType t, 2205ce94049b69f75b44c18584fe79cd238978b6b0d5Douglas Gregor SourceLocation RP, bool TypeDependent, bool ValueDependent) 2206ce94049b69f75b44c18584fe79cd238978b6b0d5Douglas Gregor : Expr(ChooseExprClass, t, TypeDependent, ValueDependent), 22071237c673c07f9d827129ba02720108816abde562Ted Kremenek BuiltinLoc(BLoc), RParenLoc(RP) { 22081237c673c07f9d827129ba02720108816abde562Ted Kremenek SubExprs[COND] = cond; 22091237c673c07f9d827129ba02720108816abde562Ted Kremenek SubExprs[LHS] = lhs; 22101237c673c07f9d827129ba02720108816abde562Ted Kremenek SubExprs[RHS] = rhs; 22111eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump } 22127976932a1c256d447316ffac58e9821417725e34Eli Friedman 221344cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor /// \brief Build an empty __builtin_choose_expr. 221444cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor explicit ChooseExpr(EmptyShell Empty) : Expr(ChooseExprClass, Empty) { } 221544cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor 22167976932a1c256d447316ffac58e9821417725e34Eli Friedman /// isConditionTrue - Return whether the condition is true (i.e. not 22177976932a1c256d447316ffac58e9821417725e34Eli Friedman /// equal to zero). 221827437caadea35f84d550cd29f024fcf3ea240eecChris Lattner bool isConditionTrue(ASTContext &C) const; 22197976932a1c256d447316ffac58e9821417725e34Eli Friedman 22207976932a1c256d447316ffac58e9821417725e34Eli Friedman /// getChosenSubExpr - Return the subexpression chosen according to the 22217976932a1c256d447316ffac58e9821417725e34Eli Friedman /// condition. 22227976932a1c256d447316ffac58e9821417725e34Eli Friedman Expr *getChosenSubExpr(ASTContext &C) const { 22237976932a1c256d447316ffac58e9821417725e34Eli Friedman return isConditionTrue(C) ? getLHS() : getRHS(); 22247976932a1c256d447316ffac58e9821417725e34Eli Friedman } 22257976932a1c256d447316ffac58e9821417725e34Eli Friedman 22265549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getCond() const { return cast<Expr>(SubExprs[COND]); } 222744cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor void setCond(Expr *E) { SubExprs[COND] = E; } 22285549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getLHS() const { return cast<Expr>(SubExprs[LHS]); } 222944cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor void setLHS(Expr *E) { SubExprs[LHS] = E; } 22305549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getRHS() const { return cast<Expr>(SubExprs[RHS]); } 223144cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor void setRHS(Expr *E) { SubExprs[RHS] = E; } 223244cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor 223344cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor SourceLocation getBuiltinLoc() const { return BuiltinLoc; } 223444cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor void setBuiltinLoc(SourceLocation L) { BuiltinLoc = L; } 22351eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 223644cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor SourceLocation getRParenLoc() const { return RParenLoc; } 223744cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor void setRParenLoc(SourceLocation L) { RParenLoc = L; } 22381237c673c07f9d827129ba02720108816abde562Ted Kremenek 2239d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff virtual SourceRange getSourceRange() const { 2240d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff return SourceRange(BuiltinLoc, RParenLoc); 2241d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff } 2242d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff static bool classof(const Stmt *T) { 22431eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == ChooseExprClass; 2244d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff } 2245d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff static bool classof(const ChooseExpr *) { return true; } 22461eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 22471237c673c07f9d827129ba02720108816abde562Ted Kremenek // Iterators 22481237c673c07f9d827129ba02720108816abde562Ted Kremenek virtual child_iterator child_begin(); 22491237c673c07f9d827129ba02720108816abde562Ted Kremenek virtual child_iterator child_end(); 2250d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff}; 2251d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff 22522d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor/// GNUNullExpr - Implements the GNU __null extension, which is a name 22532d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor/// for a null pointer constant that has integral type (e.g., int or 22542d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor/// long) and is the same size and alignment as a pointer. The __null 22552d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor/// extension is typically only used by system headers, which define 22562d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor/// NULL as __null in C++ rather than using 0 (which is an integer 22572d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor/// that may not match the size of a pointer). 22582d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregorclass GNUNullExpr : public Expr { 22592d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor /// TokenLoc - The location of the __null keyword. 22602d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor SourceLocation TokenLoc; 22612d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor 22622d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregorpublic: 22631eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump GNUNullExpr(QualType Ty, SourceLocation Loc) 22642d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor : Expr(GNUNullExprClass, Ty), TokenLoc(Loc) { } 22652d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor 226644cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor /// \brief Build an empty GNU __null expression. 226744cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor explicit GNUNullExpr(EmptyShell Empty) : Expr(GNUNullExprClass, Empty) { } 226844cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor 22692d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor /// getTokenLocation - The location of the __null token. 22702d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor SourceLocation getTokenLocation() const { return TokenLoc; } 227144cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor void setTokenLocation(SourceLocation L) { TokenLoc = L; } 22722d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor 22732d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor virtual SourceRange getSourceRange() const { 22742d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor return SourceRange(TokenLoc); 22752d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor } 22762d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor static bool classof(const Stmt *T) { 22771eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == GNUNullExprClass; 22782d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor } 22792d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor static bool classof(const GNUNullExpr *) { return true; } 22801eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 22812d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor // Iterators 22822d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor virtual child_iterator child_begin(); 22832d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor virtual child_iterator child_end(); 22842d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor}; 22852d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor 22867c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson/// VAArgExpr, used for the builtin function __builtin_va_start. 22877c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlssonclass VAArgExpr : public Expr { 22885549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Stmt *Val; 22897c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson SourceLocation BuiltinLoc, RParenLoc; 22907c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlssonpublic: 22917c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson VAArgExpr(SourceLocation BLoc, Expr* e, QualType t, SourceLocation RPLoc) 22927c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson : Expr(VAArgExprClass, t), 22937c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson Val(e), 22947c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson BuiltinLoc(BLoc), 22957c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson RParenLoc(RPLoc) { } 22961eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2297d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor /// \brief Create an empty __builtin_va_start expression. 2298d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor explicit VAArgExpr(EmptyShell Empty) : Expr(VAArgExprClass, Empty) { } 2299d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor 23005549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek const Expr *getSubExpr() const { return cast<Expr>(Val); } 23015549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getSubExpr() { return cast<Expr>(Val); } 2302d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor void setSubExpr(Expr *E) { Val = E; } 2303d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor 2304d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor SourceLocation getBuiltinLoc() const { return BuiltinLoc; } 2305d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor void setBuiltinLoc(SourceLocation L) { BuiltinLoc = L; } 23061eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2307d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor SourceLocation getRParenLoc() const { return RParenLoc; } 2308d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor void setRParenLoc(SourceLocation L) { RParenLoc = L; } 2309d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor 23107c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson virtual SourceRange getSourceRange() const { 23117c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson return SourceRange(BuiltinLoc, RParenLoc); 23121eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump } 23137c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson static bool classof(const Stmt *T) { 23147c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson return T->getStmtClass() == VAArgExprClass; 23157c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson } 23167c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson static bool classof(const VAArgExpr *) { return true; } 23171eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 23187c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson // Iterators 23197c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson virtual child_iterator child_begin(); 23201eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump virtual child_iterator child_end(); 23217c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson}; 23221eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 23234c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// @brief Describes an C or C++ initializer list. 23244c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// 23254c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// InitListExpr describes an initializer list, which can be used to 23264c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// initialize objects of different types, including 23274c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// struct/class/union types, arrays, and vectors. For example: 23284c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// 23294c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// @code 23304c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// struct foo x = { 1, { 2, 3 } }; 23314c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// @endcode 2332196ef51bc4d008ec1c69851fb3b0f8d036065931Chris Lattner/// 23334c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// Prior to semantic analysis, an initializer list will represent the 23344c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// initializer list as written by the user, but will have the 23354c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// placeholder type "void". This initializer list is called the 23364c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// syntactic form of the initializer, and may contain C99 designated 23374c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// initializers (represented as DesignatedInitExprs), initializations 23384c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// of subobject members without explicit braces, and so on. Clients 23394c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// interested in the original syntax of the initializer list should 23404c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// use the syntactic form of the initializer list. 2341196ef51bc4d008ec1c69851fb3b0f8d036065931Chris Lattner/// 23424c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// After semantic analysis, the initializer list will represent the 23434c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// semantic form of the initializer, where the initializations of all 23444c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// subobjects are made explicit with nested InitListExpr nodes and 23454c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// C99 designators have been eliminated by placing the designated 23464c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// initializations into the subobject they initialize. Additionally, 23474c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// any "holes" in the initialization, where no initializer has been 23484c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// specified for a particular subobject, will be replaced with 23493498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor/// implicitly-generated ImplicitValueInitExpr expressions that 23504c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// value-initialize the subobjects. Note, however, that the 23514c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// initializer lists may still have fewer initializers than there are 23524c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// elements to initialize within the object. 2353196ef51bc4d008ec1c69851fb3b0f8d036065931Chris Lattner/// 23544c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// Given the semantic form of the initializer list, one can retrieve 23554c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// the original syntactic form of that initializer list (if it 23564c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// exists) using getSyntacticForm(). Since many initializer lists 23574c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// have the same syntactic and semantic forms, getSyntacticForm() may 23584c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// return NULL, indicating that the current initializer list also 23594c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// serves as its syntactic form. 236066b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlssonclass InitListExpr : public Expr { 236141ef0c3472a3d09c29bc1792f3d26842f2b8a695Douglas Gregor // FIXME: Eliminate this vector in favor of ASTContext allocation 23625549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek std::vector<Stmt *> InitExprs; 236366b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson SourceLocation LBraceLoc, RBraceLoc; 23641eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 23654c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// Contains the initializer list that describes the syntactic form 23664c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// written in the source code. 23674c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor InitListExpr *SyntacticForm; 23684c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor 23690bb76897bedb8b747efc6523efb432fc24966118Douglas Gregor /// If this initializer list initializes a union, specifies which 23700bb76897bedb8b747efc6523efb432fc24966118Douglas Gregor /// field within the union will be initialized. 23710bb76897bedb8b747efc6523efb432fc24966118Douglas Gregor FieldDecl *UnionFieldInit; 23720bb76897bedb8b747efc6523efb432fc24966118Douglas Gregor 2373a9c878086036de36482cc21e35a33cabe9699b0aDouglas Gregor /// Whether this initializer list originally had a GNU array-range 2374a9c878086036de36482cc21e35a33cabe9699b0aDouglas Gregor /// designator in it. This is a temporary marker used by CodeGen. 2375a9c878086036de36482cc21e35a33cabe9699b0aDouglas Gregor bool HadArrayRangeDesignator; 2376a9c878086036de36482cc21e35a33cabe9699b0aDouglas Gregor 237766b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlssonpublic: 237866b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson InitListExpr(SourceLocation lbraceloc, Expr **initexprs, unsigned numinits, 23794c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor SourceLocation rbraceloc); 2380d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor 2381d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor /// \brief Build an empty initializer list. 2382d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor explicit InitListExpr(EmptyShell Empty) : Expr(InitListExprClass, Empty) { } 23831eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2384c5ae899b4bbf65488445316c63168079177db0edSteve Naroff unsigned getNumInits() const { return InitExprs.size(); } 23851eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 23861eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump const Expr* getInit(unsigned Init) const { 2387c5ae899b4bbf65488445316c63168079177db0edSteve Naroff assert(Init < getNumInits() && "Initializer access out of range!"); 23884c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor return cast_or_null<Expr>(InitExprs[Init]); 238966b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson } 23901eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 23911eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump Expr* getInit(unsigned Init) { 2392c5ae899b4bbf65488445316c63168079177db0edSteve Naroff assert(Init < getNumInits() && "Initializer access out of range!"); 23934c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor return cast_or_null<Expr>(InitExprs[Init]); 239466b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson } 23951eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 23961eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump void setInit(unsigned Init, Expr *expr) { 2397c5ae899b4bbf65488445316c63168079177db0edSteve Naroff assert(Init < getNumInits() && "Initializer access out of range!"); 23989e8925e72f53a9e2c4633b6b48e965ed01702fe4Steve Naroff InitExprs[Init] = expr; 23999e8925e72f53a9e2c4633b6b48e965ed01702fe4Steve Naroff } 2400c5ae899b4bbf65488445316c63168079177db0edSteve Naroff 2401fa2192042f223b5122a9e17719930f77634fd31fDouglas Gregor /// \brief Reserve space for some number of initializers. 2402fa2192042f223b5122a9e17719930f77634fd31fDouglas Gregor void reserveInits(unsigned NumInits); 24031eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 24044c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// @brief Specify the number of initializers 24054c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// 24064c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// If there are more than @p NumInits initializers, the remaining 24074c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// initializers will be destroyed. If there are fewer than @p 24084c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// NumInits initializers, NULL expressions will be added for the 24094c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// unknown initializers. 24104c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor void resizeInits(ASTContext &Context, unsigned NumInits); 24114c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor 24124c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// @brief Updates the initializer at index @p Init with the new 24134c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// expression @p expr, and returns the old expression at that 24144c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// location. 24154c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// 24164c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// When @p Init is out of range for this initializer list, the 24174c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// initializer list will be extended with NULL expressions to 24184c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// accomodate the new entry. 24194c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor Expr *updateInit(unsigned Init, Expr *expr); 2420c5ae899b4bbf65488445316c63168079177db0edSteve Naroff 24210bb76897bedb8b747efc6523efb432fc24966118Douglas Gregor /// \brief If this initializes a union, specifies which field in the 24220bb76897bedb8b747efc6523efb432fc24966118Douglas Gregor /// union to initialize. 24230bb76897bedb8b747efc6523efb432fc24966118Douglas Gregor /// 24240bb76897bedb8b747efc6523efb432fc24966118Douglas Gregor /// Typically, this field is the first named field within the 24250bb76897bedb8b747efc6523efb432fc24966118Douglas Gregor /// union. However, a designated initializer can specify the 24260bb76897bedb8b747efc6523efb432fc24966118Douglas Gregor /// initialization of a different field within the union. 24270bb76897bedb8b747efc6523efb432fc24966118Douglas Gregor FieldDecl *getInitializedFieldInUnion() { return UnionFieldInit; } 24280bb76897bedb8b747efc6523efb432fc24966118Douglas Gregor void setInitializedFieldInUnion(FieldDecl *FD) { UnionFieldInit = FD; } 24290bb76897bedb8b747efc6523efb432fc24966118Douglas Gregor 2430c5ae899b4bbf65488445316c63168079177db0edSteve Naroff // Explicit InitListExpr's originate from source code (and have valid source 2431c5ae899b4bbf65488445316c63168079177db0edSteve Naroff // locations). Implicit InitListExpr's are created by the semantic analyzer. 2432b3eef68111ffc220e449be96da1747998c057790Douglas Gregor bool isExplicit() { 2433b3eef68111ffc220e449be96da1747998c057790Douglas Gregor return LBraceLoc.isValid() && RBraceLoc.isValid(); 2434b3eef68111ffc220e449be96da1747998c057790Douglas Gregor } 24351eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2436d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor SourceLocation getLBraceLoc() const { return LBraceLoc; } 2437d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor void setLBraceLoc(SourceLocation Loc) { LBraceLoc = Loc; } 2438d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor SourceLocation getRBraceLoc() const { return RBraceLoc; } 243987fd703e097c27d63479cb83b687d4000a22bbb1Douglas Gregor void setRBraceLoc(SourceLocation Loc) { RBraceLoc = Loc; } 244087fd703e097c27d63479cb83b687d4000a22bbb1Douglas Gregor 24414c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// @brief Retrieve the initializer list that describes the 24424c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// syntactic form of the initializer. 24434c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// 24441eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /// 24454c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor InitListExpr *getSyntacticForm() const { return SyntacticForm; } 24464c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor void setSyntacticForm(InitListExpr *Init) { SyntacticForm = Init; } 24474c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor 2448a9c878086036de36482cc21e35a33cabe9699b0aDouglas Gregor bool hadArrayRangeDesignator() const { return HadArrayRangeDesignator; } 24491eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump void sawArrayRangeDesignator(bool ARD = true) { 2450d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor HadArrayRangeDesignator = ARD; 2451a9c878086036de36482cc21e35a33cabe9699b0aDouglas Gregor } 2452a9c878086036de36482cc21e35a33cabe9699b0aDouglas Gregor 245366b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson virtual SourceRange getSourceRange() const { 245466b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson return SourceRange(LBraceLoc, RBraceLoc); 24551eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump } 245666b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson static bool classof(const Stmt *T) { 24571eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == InitListExprClass; 245866b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson } 245966b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson static bool classof(const InitListExpr *) { return true; } 24601eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 246166b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson // Iterators 246266b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson virtual child_iterator child_begin(); 246366b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson virtual child_iterator child_end(); 24641eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 24657fcfa4a9b5054bc2a3bc65093f9d2e9e67a70838Ted Kremenek typedef std::vector<Stmt *>::iterator iterator; 24667fcfa4a9b5054bc2a3bc65093f9d2e9e67a70838Ted Kremenek typedef std::vector<Stmt *>::reverse_iterator reverse_iterator; 24671eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 24687fcfa4a9b5054bc2a3bc65093f9d2e9e67a70838Ted Kremenek iterator begin() { return InitExprs.begin(); } 24697fcfa4a9b5054bc2a3bc65093f9d2e9e67a70838Ted Kremenek iterator end() { return InitExprs.end(); } 24707fcfa4a9b5054bc2a3bc65093f9d2e9e67a70838Ted Kremenek reverse_iterator rbegin() { return InitExprs.rbegin(); } 24717fcfa4a9b5054bc2a3bc65093f9d2e9e67a70838Ted Kremenek reverse_iterator rend() { return InitExprs.rend(); } 247266b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson}; 247366b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson 247405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// @brief Represents a C99 designated initializer expression. 247505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// 247605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// A designated initializer expression (C99 6.7.8) contains one or 247705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// more designators (which can be field designators, array 247805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// designators, or GNU array-range designators) followed by an 247905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// expression that initializes the field or element(s) that the 248005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// designators refer to. For example, given: 24811eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// 248205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// @code 248305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// struct point { 248405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// double x; 248505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// double y; 248605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// }; 248705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// struct point ptarray[10] = { [2].y = 1.0, [2].x = 2.0, [0].x = 1.0 }; 248805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// @endcode 248905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// 249005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// The InitListExpr contains three DesignatedInitExprs, the first of 249105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// which covers @c [2].y=1.0. This DesignatedInitExpr will have two 249205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// designators, one array designator for @c [2] followed by one field 249305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// designator for @c .y. The initalization expression will be 1.0. 249405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregorclass DesignatedInitExpr : public Expr { 2495ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregorpublic: 2496ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor /// \brief Forward declaration of the Designator class. 2497ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor class Designator; 2498ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor 2499ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregorprivate: 250005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// The location of the '=' or ':' prior to the actual initializer 250105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// expression. 250205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor SourceLocation EqualOrColonLoc; 250305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 2504eeae8f072748affce25ab4064982626361293390Douglas Gregor /// Whether this designated initializer used the GNU deprecated 250505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// syntax rather than the C99 '=' syntax. 2506eeae8f072748affce25ab4064982626361293390Douglas Gregor bool GNUSyntax : 1; 250705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 250805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// The number of designators in this initializer expression. 250905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor unsigned NumDesignators : 15; 251005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 2511ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor /// \brief The designators in this designated initialization 2512ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor /// expression. 2513ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor Designator *Designators; 2514ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor 251505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// The number of subexpressions of this initializer expression, 251605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// which contains both the initializer and any additional 251705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// expressions used by array and array-range designators. 251805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor unsigned NumSubExprs : 16; 251905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 2520ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor 25211eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump DesignatedInitExpr(QualType Ty, unsigned NumDesignators, 2522ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor const Designator *Designators, 2523eeae8f072748affce25ab4064982626361293390Douglas Gregor SourceLocation EqualOrColonLoc, bool GNUSyntax, 25249ea62768fca25d829d80199cf4f8cf0f4dd39251Douglas Gregor Expr **IndexExprs, unsigned NumIndexExprs, 25259ea62768fca25d829d80199cf4f8cf0f4dd39251Douglas Gregor Expr *Init); 252605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 2527d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor explicit DesignatedInitExpr(unsigned NumSubExprs) 2528d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor : Expr(DesignatedInitExprClass, EmptyShell()), 2529d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor NumDesignators(0), Designators(0), NumSubExprs(NumSubExprs) { } 2530d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor 253142602bb40aefcc2751d4078ba88aacf4d965c9bdDouglas Gregorprotected: 25321eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump virtual void DoDestroy(ASTContext &C); 253342602bb40aefcc2751d4078ba88aacf4d965c9bdDouglas Gregor 253405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregorpublic: 253505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// A field designator, e.g., ".x". 253605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor struct FieldDesignator { 253705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// Refers to the field that is being initialized. The low bit 253805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// of this field determines whether this is actually a pointer 253905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// to an IdentifierInfo (if 1) or a FieldDecl (if 0). When 254005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// initially constructed, a field designator will store an 254105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// IdentifierInfo*. After semantic analysis has resolved that 254205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// name, the field designator will instead store a FieldDecl*. 254305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor uintptr_t NameOrField; 25441eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 254505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// The location of the '.' in the designated initializer. 254605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor unsigned DotLoc; 25471eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 254805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// The location of the field name in the designated initializer. 254905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor unsigned FieldLoc; 255005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor }; 255105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 255205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// An array or GNU array-range designator, e.g., "[9]" or "[10..15]". 255305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor struct ArrayOrRangeDesignator { 255405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// Location of the first index expression within the designated 255505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// initializer expression's list of subexpressions. 255605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor unsigned Index; 255705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// The location of the '[' starting the array range designator. 255805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor unsigned LBracketLoc; 255905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// The location of the ellipsis separating the start and end 256005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// indices. Only valid for GNU array-range designators. 256105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor unsigned EllipsisLoc; 256205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// The location of the ']' terminating the array range designator. 25631eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump unsigned RBracketLoc; 256405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor }; 256505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 256605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// @brief Represents a single C99 designator. 256705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// 256805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// @todo This class is infuriatingly similar to clang::Designator, 256905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// but minor differences (storing indices vs. storing pointers) 257005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// keep us from reusing it. Try harder, later, to rectify these 257105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// differences. 257205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor class Designator { 257305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// @brief The kind of designator this describes. 257405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor enum { 257505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor FieldDesignator, 257605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor ArrayDesignator, 257705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor ArrayRangeDesignator 257805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } Kind; 257905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 258005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor union { 258105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// A field designator, e.g., ".x". 258205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor struct FieldDesignator Field; 258305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// An array or GNU array-range designator, e.g., "[9]" or "[10..15]". 258405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor struct ArrayOrRangeDesignator ArrayOrRange; 258505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor }; 258605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor friend class DesignatedInitExpr; 258705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 258805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor public: 2589ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor Designator() {} 2590ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor 259105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// @brief Initializes a field designator. 25921eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump Designator(const IdentifierInfo *FieldName, SourceLocation DotLoc, 25931eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump SourceLocation FieldLoc) 259405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor : Kind(FieldDesignator) { 259505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor Field.NameOrField = reinterpret_cast<uintptr_t>(FieldName) | 0x01; 259605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor Field.DotLoc = DotLoc.getRawEncoding(); 259705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor Field.FieldLoc = FieldLoc.getRawEncoding(); 259805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } 259905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 260005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// @brief Initializes an array designator. 26011eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump Designator(unsigned Index, SourceLocation LBracketLoc, 260205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor SourceLocation RBracketLoc) 260305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor : Kind(ArrayDesignator) { 260405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor ArrayOrRange.Index = Index; 260505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor ArrayOrRange.LBracketLoc = LBracketLoc.getRawEncoding(); 260605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor ArrayOrRange.EllipsisLoc = SourceLocation().getRawEncoding(); 260705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor ArrayOrRange.RBracketLoc = RBracketLoc.getRawEncoding(); 260805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } 260905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 261005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// @brief Initializes a GNU array-range designator. 26111eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump Designator(unsigned Index, SourceLocation LBracketLoc, 261205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor SourceLocation EllipsisLoc, SourceLocation RBracketLoc) 261305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor : Kind(ArrayRangeDesignator) { 261405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor ArrayOrRange.Index = Index; 261505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor ArrayOrRange.LBracketLoc = LBracketLoc.getRawEncoding(); 261605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor ArrayOrRange.EllipsisLoc = EllipsisLoc.getRawEncoding(); 261705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor ArrayOrRange.RBracketLoc = RBracketLoc.getRawEncoding(); 261805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } 261905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 262005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor bool isFieldDesignator() const { return Kind == FieldDesignator; } 262105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor bool isArrayDesignator() const { return Kind == ArrayDesignator; } 262205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor bool isArrayRangeDesignator() const { return Kind == ArrayRangeDesignator; } 262305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 262405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor IdentifierInfo * getFieldName(); 262505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 262605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor FieldDecl *getField() { 262705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor assert(Kind == FieldDesignator && "Only valid on a field designator"); 262805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor if (Field.NameOrField & 0x01) 262905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor return 0; 263005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor else 263105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor return reinterpret_cast<FieldDecl *>(Field.NameOrField); 263205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } 263305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 263405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor void setField(FieldDecl *FD) { 263505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor assert(Kind == FieldDesignator && "Only valid on a field designator"); 263605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor Field.NameOrField = reinterpret_cast<uintptr_t>(FD); 263705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } 263805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 263987f55cf59e82f246d8605733e9300d0c5f6830a6Douglas Gregor SourceLocation getDotLoc() const { 264087f55cf59e82f246d8605733e9300d0c5f6830a6Douglas Gregor assert(Kind == FieldDesignator && "Only valid on a field designator"); 264187f55cf59e82f246d8605733e9300d0c5f6830a6Douglas Gregor return SourceLocation::getFromRawEncoding(Field.DotLoc); 264287f55cf59e82f246d8605733e9300d0c5f6830a6Douglas Gregor } 264387f55cf59e82f246d8605733e9300d0c5f6830a6Douglas Gregor 264405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor SourceLocation getFieldLoc() const { 264505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor assert(Kind == FieldDesignator && "Only valid on a field designator"); 264605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor return SourceLocation::getFromRawEncoding(Field.FieldLoc); 264705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } 264805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 264905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor SourceLocation getLBracketLoc() const { 265005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor assert((Kind == ArrayDesignator || Kind == ArrayRangeDesignator) && 265105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor "Only valid on an array or array-range designator"); 265205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor return SourceLocation::getFromRawEncoding(ArrayOrRange.LBracketLoc); 265305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } 265405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 265505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor SourceLocation getRBracketLoc() const { 265605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor assert((Kind == ArrayDesignator || Kind == ArrayRangeDesignator) && 265705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor "Only valid on an array or array-range designator"); 265805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor return SourceLocation::getFromRawEncoding(ArrayOrRange.RBracketLoc); 265905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } 266005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 266105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor SourceLocation getEllipsisLoc() const { 266205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor assert(Kind == ArrayRangeDesignator && 266305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor "Only valid on an array-range designator"); 266405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor return SourceLocation::getFromRawEncoding(ArrayOrRange.EllipsisLoc); 266505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } 26664c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor 2667d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor unsigned getFirstExprIndex() const { 2668d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor assert((Kind == ArrayDesignator || Kind == ArrayRangeDesignator) && 2669d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor "Only valid on an array or array-range designator"); 2670d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor return ArrayOrRange.Index; 2671d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor } 2672d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor 26734c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor SourceLocation getStartLocation() const { 26744c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor if (Kind == FieldDesignator) 26754c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor return getDotLoc().isInvalid()? getFieldLoc() : getDotLoc(); 26764c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor else 26774c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor return getLBracketLoc(); 26784c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor } 267905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor }; 268005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 26811eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static DesignatedInitExpr *Create(ASTContext &C, Designator *Designators, 268205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor unsigned NumDesignators, 268305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor Expr **IndexExprs, unsigned NumIndexExprs, 268405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor SourceLocation EqualOrColonLoc, 2685eeae8f072748affce25ab4064982626361293390Douglas Gregor bool GNUSyntax, Expr *Init); 268605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 2687d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor static DesignatedInitExpr *CreateEmpty(ASTContext &C, unsigned NumIndexExprs); 2688d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor 268905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// @brief Returns the number of designators in this initializer. 269005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor unsigned size() const { return NumDesignators; } 269105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 269205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor // Iterator access to the designators. 269305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor typedef Designator* designators_iterator; 2694ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor designators_iterator designators_begin() { return Designators; } 26951eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump designators_iterator designators_end() { 26961eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return Designators + NumDesignators; 2697ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor } 269805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 2699711997184366d584c9c437102cae1e9d9927b986Douglas Gregor Designator *getDesignator(unsigned Idx) { return &designators_begin()[Idx]; } 2700711997184366d584c9c437102cae1e9d9927b986Douglas Gregor 2701d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor void setDesignators(const Designator *Desigs, unsigned NumDesigs); 2702d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor 270305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor Expr *getArrayIndex(const Designator& D); 270405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor Expr *getArrayRangeStart(const Designator& D); 270505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor Expr *getArrayRangeEnd(const Designator& D); 270605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 270705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// @brief Retrieve the location of the '=' that precedes the 270805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// initializer value itself, if present. 270905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor SourceLocation getEqualOrColonLoc() const { return EqualOrColonLoc; } 2710d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor void setEqualOrColonLoc(SourceLocation L) { EqualOrColonLoc = L; } 271105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 271205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// @brief Determines whether this designated initializer used the 2713eeae8f072748affce25ab4064982626361293390Douglas Gregor /// deprecated GNU syntax for designated initializers. 2714eeae8f072748affce25ab4064982626361293390Douglas Gregor bool usesGNUSyntax() const { return GNUSyntax; } 2715d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor void setGNUSyntax(bool GNU) { GNUSyntax = GNU; } 271605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 271705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// @brief Retrieve the initializer value. 27181eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump Expr *getInit() const { 271905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor return cast<Expr>(*const_cast<DesignatedInitExpr*>(this)->child_begin()); 272005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } 272105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 272205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor void setInit(Expr *init) { 272305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor *child_begin() = init; 272405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } 272505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 2726d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor /// \brief Retrieve the total number of subexpressions in this 2727d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor /// designated initializer expression, including the actual 2728d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor /// initialized value and any expressions that occur within array 2729d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor /// and array-range designators. 2730d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor unsigned getNumSubExprs() const { return NumSubExprs; } 2731d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor 2732d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor Expr *getSubExpr(unsigned Idx) { 2733d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor assert(Idx < NumSubExprs && "Subscript out of range"); 2734d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor char* Ptr = static_cast<char*>(static_cast<void *>(this)); 2735d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor Ptr += sizeof(DesignatedInitExpr); 2736d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor return reinterpret_cast<Expr**>(reinterpret_cast<void**>(Ptr))[Idx]; 2737d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor } 2738d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor 2739d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor void setSubExpr(unsigned Idx, Expr *E) { 2740d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor assert(Idx < NumSubExprs && "Subscript out of range"); 2741d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor char* Ptr = static_cast<char*>(static_cast<void *>(this)); 2742d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor Ptr += sizeof(DesignatedInitExpr); 2743d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor reinterpret_cast<Expr**>(reinterpret_cast<void**>(Ptr))[Idx] = E; 2744d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor } 2745d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor 2746ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor /// \brief Replaces the designator at index @p Idx with the series 2747ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor /// of designators in [First, Last). 27481eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump void ExpandDesignator(unsigned Idx, const Designator *First, 2749ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor const Designator *Last); 2750ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor 275105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor virtual SourceRange getSourceRange() const; 275205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 275305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor static bool classof(const Stmt *T) { 27541eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == DesignatedInitExprClass; 275505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } 275605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor static bool classof(const DesignatedInitExpr *) { return true; } 275705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 275805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor // Iterators 275905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor virtual child_iterator child_begin(); 27601eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump virtual child_iterator child_end(); 27613498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor}; 27623498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor 27633498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor/// \brief Represents an implicitly-generated value initialization of 27643498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor/// an object of a given type. 27653498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor/// 27661a51b4a11b7db25cac2134249711ecaaf9d1c0a8Douglas Gregor/// Implicit value initializations occur within semantic initializer 27671a51b4a11b7db25cac2134249711ecaaf9d1c0a8Douglas Gregor/// list expressions (InitListExpr) as placeholders for subobject 27683498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor/// initializations not explicitly specified by the user. 27691a51b4a11b7db25cac2134249711ecaaf9d1c0a8Douglas Gregor/// 27701a51b4a11b7db25cac2134249711ecaaf9d1c0a8Douglas Gregor/// \see InitListExpr 27711eb4433ac451dc16f4133a88af2d002ac26c58efMike Stumpclass ImplicitValueInitExpr : public Expr { 27723498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregorpublic: 27731eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump explicit ImplicitValueInitExpr(QualType ty) 27743498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor : Expr(ImplicitValueInitExprClass, ty) { } 27753498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor 2776d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor /// \brief Construct an empty implicit value initialization. 2777d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor explicit ImplicitValueInitExpr(EmptyShell Empty) 2778d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor : Expr(ImplicitValueInitExprClass, Empty) { } 2779d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor 27801eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 27813498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor return T->getStmtClass() == ImplicitValueInitExprClass; 27823498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor } 27833498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor static bool classof(const ImplicitValueInitExpr *) { return true; } 27843498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor 27853498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor virtual SourceRange getSourceRange() const { 27863498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor return SourceRange(); 27873498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor } 27883498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor 27893498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor // Iterators 27903498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor virtual child_iterator child_begin(); 27911eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump virtual child_iterator child_end(); 279205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor}; 279305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 27942ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman 27952ef13e5abef0570a9f567b4671367275c05d4d34Nate Begemanclass ParenListExpr : public Expr { 27962ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman Stmt **Exprs; 27972ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman unsigned NumExprs; 27982ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman SourceLocation LParenLoc, RParenLoc; 27992ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman 28001eb4433ac451dc16f4133a88af2d002ac26c58efMike Stumpprotected: 28012ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman virtual void DoDestroy(ASTContext& C); 28021eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 28032ef13e5abef0570a9f567b4671367275c05d4d34Nate Begemanpublic: 28041eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump ParenListExpr(ASTContext& C, SourceLocation lparenloc, Expr **exprs, 28052ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman unsigned numexprs, SourceLocation rparenloc); 28062ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman 28072ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman ~ParenListExpr() {} 28082ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman 28092ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman /// \brief Build an empty paren list. 28102ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman //explicit ParenListExpr(EmptyShell Empty) : Expr(ParenListExprClass, Empty) { } 28111eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 28122ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman unsigned getNumExprs() const { return NumExprs; } 28131eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 28141eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump const Expr* getExpr(unsigned Init) const { 28152ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman assert(Init < getNumExprs() && "Initializer access out of range!"); 28162ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman return cast_or_null<Expr>(Exprs[Init]); 28172ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman } 28181eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 28191eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump Expr* getExpr(unsigned Init) { 28202ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman assert(Init < getNumExprs() && "Initializer access out of range!"); 28212ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman return cast_or_null<Expr>(Exprs[Init]); 28222ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman } 28232ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman 282483ddad3ab513f5d73698cf9fbeb4ed3f011bc3b9Douglas Gregor Expr **getExprs() { return reinterpret_cast<Expr **>(Exprs); } 28251eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 28262ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman SourceLocation getLParenLoc() const { return LParenLoc; } 28272ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman SourceLocation getRParenLoc() const { return RParenLoc; } 28282ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman 28292ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman virtual SourceRange getSourceRange() const { 28302ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman return SourceRange(LParenLoc, RParenLoc); 28311eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump } 28322ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman static bool classof(const Stmt *T) { 28331eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == ParenListExprClass; 28342ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman } 28352ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman static bool classof(const ParenListExpr *) { return true; } 28361eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 28372ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman // Iterators 28382ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman virtual child_iterator child_begin(); 28392ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman virtual child_iterator child_end(); 28402ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman}; 28412ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman 28421eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 28434eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff//===----------------------------------------------------------------------===// 28444eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff// Clang Extensions 28454eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff//===----------------------------------------------------------------------===// 28464eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff 2847a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner 2848a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner/// ExtVectorElementExpr - This represents access to specific elements of a 2849a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner/// vector, and may occur on the left hand side or right hand side. For example 2850a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner/// the following is legal: "V.xy = V.zw" if V is a 4 element extended vector. 2851a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner/// 285273525de7fd9bdd534382dc89a24f1f76db3e04b9Chris Lattner/// Note that the base may have either vector or pointer to vector type, just 285373525de7fd9bdd534382dc89a24f1f76db3e04b9Chris Lattner/// like a struct field reference. 285473525de7fd9bdd534382dc89a24f1f76db3e04b9Chris Lattner/// 2855a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattnerclass ExtVectorElementExpr : public Expr { 2856a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner Stmt *Base; 2857d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor IdentifierInfo *Accessor; 2858a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner SourceLocation AccessorLoc; 2859a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattnerpublic: 2860a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner ExtVectorElementExpr(QualType ty, Expr *base, IdentifierInfo &accessor, 2861a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner SourceLocation loc) 28621eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump : Expr(ExtVectorElementExprClass, ty), 2863d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor Base(base), Accessor(&accessor), AccessorLoc(loc) {} 28641eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2865d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor /// \brief Build an empty vector element expression. 2866d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor explicit ExtVectorElementExpr(EmptyShell Empty) 2867d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor : Expr(ExtVectorElementExprClass, Empty) { } 2868d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor 2869a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner const Expr *getBase() const { return cast<Expr>(Base); } 2870a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner Expr *getBase() { return cast<Expr>(Base); } 2871d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor void setBase(Expr *E) { Base = E; } 2872d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor 2873d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor IdentifierInfo &getAccessor() const { return *Accessor; } 2874d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor void setAccessor(IdentifierInfo *II) { Accessor = II; } 2875d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor 2876d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor SourceLocation getAccessorLoc() const { return AccessorLoc; } 2877d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor void setAccessorLoc(SourceLocation L) { AccessorLoc = L; } 2878d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor 2879a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner /// getNumElements - Get the number of components being selected. 2880a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner unsigned getNumElements() const; 28811eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2882a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner /// containsDuplicateElements - Return true if any element access is 2883a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner /// repeated. 2884a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner bool containsDuplicateElements() const; 28851eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2886a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner /// getEncodedElementAccess - Encode the elements accessed into an llvm 2887a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner /// aggregate Constant of ConstantInt(s). 2888a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner void getEncodedElementAccess(llvm::SmallVectorImpl<unsigned> &Elts) const; 28891eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2890a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner virtual SourceRange getSourceRange() const { 2891a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner return SourceRange(getBase()->getLocStart(), AccessorLoc); 2892a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner } 28931eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 28942140e904dbe53657339cb5b1cc13de563ca0d1fcChris Lattner /// isArrow - Return true if the base expression is a pointer to vector, 28952140e904dbe53657339cb5b1cc13de563ca0d1fcChris Lattner /// return false if the base expression is a vector. 28962140e904dbe53657339cb5b1cc13de563ca0d1fcChris Lattner bool isArrow() const; 28971eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 28981eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 28991eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == ExtVectorElementExprClass; 2900a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner } 2901a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner static bool classof(const ExtVectorElementExpr *) { return true; } 29021eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2903a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner // Iterators 2904a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner virtual child_iterator child_begin(); 2905a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner virtual child_iterator child_end(); 2906a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner}; 2907a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner 2908a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner 290956ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroff/// BlockExpr - Adaptor class for mixing a BlockDecl with expressions. 29109c3c902835ef7d37300463ad47176ec21a67dc8bSteve Naroff/// ^{ statement-body } or ^(int arg1, float arg2){ statement-body } 29114eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroffclass BlockExpr : public Expr { 291256ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroffprotected: 291356ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroff BlockDecl *TheBlock; 2914b83d287bc7f47d36fb0751a481e2ef9308b37252Mike Stump bool HasBlockDeclRefExprs; 29154eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroffpublic: 2916b83d287bc7f47d36fb0751a481e2ef9308b37252Mike Stump BlockExpr(BlockDecl *BD, QualType ty, bool hasBlockDeclRefExprs) 29171eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump : Expr(BlockExprClass, ty), 2918b83d287bc7f47d36fb0751a481e2ef9308b37252Mike Stump TheBlock(BD), HasBlockDeclRefExprs(hasBlockDeclRefExprs) {} 29199c3c902835ef7d37300463ad47176ec21a67dc8bSteve Naroff 292084af7c27cdc615ff917a501d61256b4049383c97Douglas Gregor /// \brief Build an empty block expression. 292184af7c27cdc615ff917a501d61256b4049383c97Douglas Gregor explicit BlockExpr(EmptyShell Empty) : Expr(BlockExprClass, Empty) { } 292284af7c27cdc615ff917a501d61256b4049383c97Douglas Gregor 2923d5cab5435371b8cc74a9e05ebd40b5995ebad149Anders Carlsson const BlockDecl *getBlockDecl() const { return TheBlock; } 292456ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroff BlockDecl *getBlockDecl() { return TheBlock; } 292584af7c27cdc615ff917a501d61256b4049383c97Douglas Gregor void setBlockDecl(BlockDecl *BD) { TheBlock = BD; } 292684af7c27cdc615ff917a501d61256b4049383c97Douglas Gregor 292756ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroff // Convenience functions for probing the underlying BlockDecl. 292856ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroff SourceLocation getCaretLocation() const; 292956ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroff const Stmt *getBody() const; 293056ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroff Stmt *getBody(); 29319c3c902835ef7d37300463ad47176ec21a67dc8bSteve Naroff 29329c3c902835ef7d37300463ad47176ec21a67dc8bSteve Naroff virtual SourceRange getSourceRange() const { 293356ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroff return SourceRange(getCaretLocation(), getBody()->getLocEnd()); 29349c3c902835ef7d37300463ad47176ec21a67dc8bSteve Naroff } 29359c3c902835ef7d37300463ad47176ec21a67dc8bSteve Naroff 293656ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroff /// getFunctionType - Return the underlying function type for this block. 293756ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroff const FunctionType *getFunctionType() const; 293856ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroff 2939b83d287bc7f47d36fb0751a481e2ef9308b37252Mike Stump /// hasBlockDeclRefExprs - Return true iff the block has BlockDeclRefExpr 29405b54b88c4082bb81b8b341b622fda9a85cbd5fadChris Lattner /// inside of the block that reference values outside the block. 2941b83d287bc7f47d36fb0751a481e2ef9308b37252Mike Stump bool hasBlockDeclRefExprs() const { return HasBlockDeclRefExprs; } 294284af7c27cdc615ff917a501d61256b4049383c97Douglas Gregor void setHasBlockDeclRefExprs(bool BDRE) { HasBlockDeclRefExprs = BDRE; } 2943b83d287bc7f47d36fb0751a481e2ef9308b37252Mike Stump 29441eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 29459c3c902835ef7d37300463ad47176ec21a67dc8bSteve Naroff return T->getStmtClass() == BlockExprClass; 29464eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff } 29474eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff static bool classof(const BlockExpr *) { return true; } 29481eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 29494eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff // Iterators 29504eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff virtual child_iterator child_begin(); 29514eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff virtual child_iterator child_end(); 29524eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff}; 29531eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 29544eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff/// BlockDeclRefExpr - A reference to a declared variable, function, 29554eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff/// enum, etc. 29564eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroffclass BlockDeclRefExpr : public Expr { 29571eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump ValueDecl *D; 29584eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff SourceLocation Loc; 29597d5c74ecbbd8719436c071f38657bc8e97ee4a24Fariborz Jahanian bool IsByRef : 1; 29607d5c74ecbbd8719436c071f38657bc8e97ee4a24Fariborz Jahanian bool ConstQualAdded : 1; 29614eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroffpublic: 29621eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump BlockDeclRefExpr(ValueDecl *d, QualType t, SourceLocation l, bool ByRef, 29637d5c74ecbbd8719436c071f38657bc8e97ee4a24Fariborz Jahanian bool constAdded = false) : 29647d5c74ecbbd8719436c071f38657bc8e97ee4a24Fariborz Jahanian Expr(BlockDeclRefExprClass, t), D(d), Loc(l), IsByRef(ByRef), 29657d5c74ecbbd8719436c071f38657bc8e97ee4a24Fariborz Jahanian ConstQualAdded(constAdded) {} 296694cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor 296794cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor // \brief Build an empty reference to a declared variable in a 296894cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor // block. 296994cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor explicit BlockDeclRefExpr(EmptyShell Empty) 297094cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor : Expr(BlockDeclRefExprClass, Empty) { } 29711eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 29724eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff ValueDecl *getDecl() { return D; } 29734eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff const ValueDecl *getDecl() const { return D; } 297494cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor void setDecl(ValueDecl *VD) { D = VD; } 297594cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor 297694cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor SourceLocation getLocation() const { return Loc; } 297794cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor void setLocation(SourceLocation L) { Loc = L; } 297894cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor 29794eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff virtual SourceRange getSourceRange() const { return SourceRange(Loc); } 29801eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 29814eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff bool isByRef() const { return IsByRef; } 298294cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor void setByRef(bool BR) { IsByRef = BR; } 29831eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 29847d5c74ecbbd8719436c071f38657bc8e97ee4a24Fariborz Jahanian bool isConstQualAdded() const { return ConstQualAdded; } 29857d5c74ecbbd8719436c071f38657bc8e97ee4a24Fariborz Jahanian void setConstQualAdded(bool C) { ConstQualAdded = C; } 298694cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor 29871eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 29881eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == BlockDeclRefExprClass; 29894eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff } 29904eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff static bool classof(const BlockDeclRefExpr *) { return true; } 29911eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 29924eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff // Iterators 29934eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff virtual child_iterator child_begin(); 29944eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff virtual child_iterator child_end(); 29954eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff}; 29964eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff 29975f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} // end namespace clang 29985f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 29995f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer#endif 3000