Expr.h revision 2fc46bf1a9bc31d50f82de37c70ea257d3cded27
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" 20161755a09898c95d21bfff33707da9ca41cd53c5John McCall#include "clang/AST/DeclAccessPair.h" 21709210feee317b8d6690dd1d15c2b74cfe55e261Ted Kremenek#include "clang/AST/ASTVector.h" 22409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson#include "clang/AST/UsuallyTinyPtrVector.h" 235f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer#include "llvm/ADT/APSInt.h" 24525a05093a4816af961fe2bc6b8a81c17e2e26c2Chris Lattner#include "llvm/ADT/APFloat.h" 253b8d116703db8018f855cbb4733ace426422623bNate Begeman#include "llvm/ADT/SmallVector.h" 26b648023da23e8b227cdda57a241db4c6f368726bDaniel Dunbar#include "llvm/ADT/StringRef.h" 27c5ae899b4bbf65488445316c63168079177db0edSteve Naroff#include <vector> 285f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 295f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencernamespace clang { 30590b6646ef747d2f7b42e5f40487ff07642d7b6fChris Lattner class ASTContext; 31c44eec6dd29ee9415cbd38a35deff4c8b67abb6aAnders Carlsson class APValue; 32c4a1dea2dc56bd1357ec91b829a0b9e68229a13eDaniel Dunbar class Decl; 33c4a1dea2dc56bd1357ec91b829a0b9e68229a13eDaniel Dunbar class IdentifierInfo; 34c4a1dea2dc56bd1357ec91b829a0b9e68229a13eDaniel Dunbar class ParmVarDecl; 358e9bebdea69c590dedfbf27374114cb76fe12fbdDouglas Gregor class NamedDecl; 36c4a1dea2dc56bd1357ec91b829a0b9e68229a13eDaniel Dunbar class ValueDecl; 3756ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroff class BlockDecl; 38409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson class CXXBaseSpecifier; 3988a3514f36de96b19cdf50141c640df1a5f13f6cDouglas Gregor class CXXOperatorCallExpr; 4088a3514f36de96b19cdf50141c640df1a5f13f6cDouglas Gregor class CXXMemberCallExpr; 41833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall class TemplateArgumentLoc; 42d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall class TemplateArgumentListInfo; 4388a3514f36de96b19cdf50141c640df1a5f13f6cDouglas Gregor 447ab9d574d27ecee1f130e5755aa403e5ab529b6bAnders Carlsson/// \brief A simple array of base specifiers. 457ab9d574d27ecee1f130e5755aa403e5ab529b6bAnders Carlssontypedef UsuallyTinyPtrVector<const CXXBaseSpecifier> CXXBaseSpecifierArray; 467ab9d574d27ecee1f130e5755aa403e5ab529b6bAnders Carlsson 475f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// Expr - This represents one expression. Note that Expr's are subclasses of 485f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// Stmt. This allows an expression to be transparently used any place a Stmt 495f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// is required. 505f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 515f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass Expr : public Stmt { 525f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer QualType TR; 53898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor 549ea62768fca25d829d80199cf4f8cf0f4dd39251Douglas Gregorprotected: 551eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /// TypeDependent - Whether this expression is type-dependent 56898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// (C++ [temp.dep.expr]). 57898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor bool TypeDependent : 1; 58898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor 591eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /// ValueDependent - Whether this expression is value-dependent 60898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// (C++ [temp.dep.constexpr]). 61898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor bool ValueDependent : 1; 62898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor 63898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor Expr(StmtClass SC, QualType T, bool TD, bool VD) 64b3eef68111ffc220e449be96da1747998c057790Douglas Gregor : Stmt(SC), TypeDependent(TD), ValueDependent(VD) { 65898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor setType(T); 66898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor } 67898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor 680b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor /// \brief Construct an empty expression. 690b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor explicit Expr(StmtClass SC, EmptyShell) : Stmt(SC) { } 700b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor 711eb4433ac451dc16f4133a88af2d002ac26c58efMike Stumppublic: 7243d9d9243329b1b75d1a6efdad9f16d6fb386b8eDouglas Gregor /// \brief Increases the reference count for this expression. 7343d9d9243329b1b75d1a6efdad9f16d6fb386b8eDouglas Gregor /// 7443d9d9243329b1b75d1a6efdad9f16d6fb386b8eDouglas Gregor /// Invoke the Retain() operation when this expression 7543d9d9243329b1b75d1a6efdad9f16d6fb386b8eDouglas Gregor /// is being shared by another owner. 7643d9d9243329b1b75d1a6efdad9f16d6fb386b8eDouglas Gregor Expr *Retain() { 7743d9d9243329b1b75d1a6efdad9f16d6fb386b8eDouglas Gregor Stmt::Retain(); 7843d9d9243329b1b75d1a6efdad9f16d6fb386b8eDouglas Gregor return this; 7943d9d9243329b1b75d1a6efdad9f16d6fb386b8eDouglas Gregor } 801eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 81f7c2aa0b049272d8f318988c1965760dcb852578Douglas Gregor QualType getType() const { return TR; } 821eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump void setType(QualType t) { 839d293dfc0ad7c44ae0b5eb9517f1ed8c8d8b7ff7Douglas Gregor // In C++, the type of an expression is always adjusted so that it 849d293dfc0ad7c44ae0b5eb9517f1ed8c8d8b7ff7Douglas Gregor // will not have reference type an expression will never have 859d293dfc0ad7c44ae0b5eb9517f1ed8c8d8b7ff7Douglas Gregor // reference type (C++ [expr]p6). Use 869d293dfc0ad7c44ae0b5eb9517f1ed8c8d8b7ff7Douglas Gregor // QualType::getNonReferenceType() to retrieve the non-reference 879d293dfc0ad7c44ae0b5eb9517f1ed8c8d8b7ff7Douglas Gregor // type. Additionally, inspect Expr::isLvalue to determine whether 889d293dfc0ad7c44ae0b5eb9517f1ed8c8d8b7ff7Douglas Gregor // an expression that is adjusted in this manner should be 899d293dfc0ad7c44ae0b5eb9517f1ed8c8d8b7ff7Douglas Gregor // considered an lvalue. 90905d11d53aeb6b26744f44fedc2b2820c7a62df6Douglas Gregor assert((t.isNull() || !t->isReferenceType()) && 918320aaaa01d931aa234fc3bce05b399ef41898d5Daniel Dunbar "Expressions can't have reference type"); 92f7c2aa0b049272d8f318988c1965760dcb852578Douglas Gregor 931eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump TR = t; 949d293dfc0ad7c44ae0b5eb9517f1ed8c8d8b7ff7Douglas Gregor } 9577ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek 96898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// isValueDependent - Determines whether this expression is 97898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// value-dependent (C++ [temp.dep.constexpr]). For example, the 98898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// array bound of "Chars" in the following example is 991eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /// value-dependent. 100898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// @code 101898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// template<int Size, char (&Chars)[Size]> struct meta_string; 102898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// @endcode 103898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor bool isValueDependent() const { return ValueDependent; } 104898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor 1050b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor /// \brief Set whether this expression is value-dependent or not. 1060b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor void setValueDependent(bool VD) { ValueDependent = VD; } 1070b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor 108898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// isTypeDependent - Determines whether this expression is 109898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// type-dependent (C++ [temp.dep.expr]), which means that its type 110898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// could change from one template instantiation to the next. For 111898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// example, the expressions "x" and "x + y" are type-dependent in 112898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// the following code, but "y" is not type-dependent: 113898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// @code 1141eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /// template<typename T> 115898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// void add(T x, int y) { 116898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// x + y; 117898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// } 118898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// @endcode 119898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor bool isTypeDependent() const { return TypeDependent; } 120898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor 1210b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor /// \brief Set whether this expression is type-dependent or not. 1220b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor void setTypeDependent(bool TD) { TypeDependent = TD; } 1230b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor 1245f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// SourceLocation tokens are not useful in isolation - they are low level 1255f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// value objects created/interpreted by SourceManager. We assume AST 1265f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// clients will have a pointer to the respective SourceManager. 1275f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer virtual SourceRange getSourceRange() const = 0; 1285f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1295f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// getExprLoc - Return the preferred location for the arrow when diagnosing 1305f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// a problem with a generic expression. 1315f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer virtual SourceLocation getExprLoc() const { return getLocStart(); } 1321eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 133026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner /// isUnusedResultAWarning - Return true if this immediate expression should 134026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner /// be warned about if the result is unused. If so, fill in Loc and Ranges 135026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner /// with location to warn on and the source range[s] to report with the 136026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner /// warning. 137026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner bool isUnusedResultAWarning(SourceLocation &Loc, SourceRange &R1, 138df317bf71653eeb235da8337b1e8e790f9653aa4Mike Stump SourceRange &R2, ASTContext &Ctx) const; 1391eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1405f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// isLvalue - C99 6.3.2.1: an lvalue is an expression with an object type or 1415f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// incomplete type other than void. Nonarray expressions that can be lvalues: 1425f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// - name, where name must be a variable 1435f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// - e[i] 1445f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// - (e), where e must be an lvalue 1455f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// - e.name, where e must be an lvalue 1465f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// - e->name 1475f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// - *e, the type of e cannot be a function type 1485f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// - string-constant 14908ad47cbd1f81fcb31dbc731c13b885a07e12704Bill Wendling /// - reference type [C++ [expr]] 15076458501a8963fa11b91c9337a487de6871169b4Sebastian Redl /// - b ? x : y, where x and y are lvalues of suitable types [C++] 1515f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// 1525f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer enum isLvalueResult { 1535f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer LV_Valid, 1545f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer LV_NotObjectType, 1555f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer LV_IncompleteVoidType, 156fec0b49c3fa621fbf63e420f3d54a5bb3a0265d2Steve Naroff LV_DuplicateVectorComponents, 15786f194083504938df72135b5b66bf0c5cafd9498Douglas Gregor LV_InvalidExpression, 1582514a309204341798f96912ce7a90841bea59727Fariborz Jahanian LV_MemberFunction, 159e9ff443040cb571ae2c5c2626c4dc9a9a812d84aFariborz Jahanian LV_SubObjCPropertySetting, 160e873fb74219f48407ae0b8fa083aa7f0b6ff1427Douglas Gregor LV_ClassTemporary 1615f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer }; 16228be73f74c9e241a23ea24fe5756623de6bf1084Chris Lattner isLvalueResult isLvalue(ASTContext &Ctx) const; 16353202857c60214d80950a975e6e52aebf30bd16aEli Friedman 16453202857c60214d80950a975e6e52aebf30bd16aEli Friedman // Same as above, but excluding checks for non-object and void types in C 16553202857c60214d80950a975e6e52aebf30bd16aEli Friedman isLvalueResult isLvalueInternal(ASTContext &Ctx) const; 1661eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1675f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// isModifiableLvalue - C99 6.3.2.1: an lvalue that does not have array type, 1685f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// does not have an incomplete type, does not have a const-qualified type, 1691eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /// and if it is a structure or union, does not have any member (including, 1705f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// recursively, any member or element of all contained aggregates or unions) 1715f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// with a const-qualified type. 17244e35f7b2b5da1eb338639e46bf0b5522e75c5f3Daniel Dunbar /// 17344e35f7b2b5da1eb338639e46bf0b5522e75c5f3Daniel Dunbar /// \param Loc [in] [out] - A source location which *may* be filled 17444e35f7b2b5da1eb338639e46bf0b5522e75c5f3Daniel Dunbar /// in with the location of the expression making this a 17544e35f7b2b5da1eb338639e46bf0b5522e75c5f3Daniel Dunbar /// non-modifiable lvalue, if specified. 1765f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer enum isModifiableLvalueResult { 1775f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer MLV_Valid, 1785f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer MLV_NotObjectType, 1795f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer MLV_IncompleteVoidType, 180fec0b49c3fa621fbf63e420f3d54a5bb3a0265d2Steve Naroff MLV_DuplicateVectorComponents, 1815f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer MLV_InvalidExpression, 182ca354faa7e9b99af17070c82b9662a5fca76422cChris Lattner MLV_LValueCast, // Specialized form of MLV_InvalidExpression. 1835f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer MLV_IncompleteType, 1845f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer MLV_ConstQualified, 1854f6a7d7ead09b439216c32f2de806a998aeb222aSteve Naroff MLV_ArrayType, 1865daf570d0ce027e18ed5f9d66e6b2a14a40b720dFariborz Jahanian MLV_NotBlockQualified, 187ba8d2d684e74a20bef03828c21c991d222c7e9e5Fariborz Jahanian MLV_ReadonlyProperty, 18886f194083504938df72135b5b66bf0c5cafd9498Douglas Gregor MLV_NoSetterProperty, 1892514a309204341798f96912ce7a90841bea59727Fariborz Jahanian MLV_MemberFunction, 190e9ff443040cb571ae2c5c2626c4dc9a9a812d84aFariborz Jahanian MLV_SubObjCPropertySetting, 191e873fb74219f48407ae0b8fa083aa7f0b6ff1427Douglas Gregor MLV_ClassTemporary 1925f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer }; 19344e35f7b2b5da1eb338639e46bf0b5522e75c5f3Daniel Dunbar isModifiableLvalueResult isModifiableLvalue(ASTContext &Ctx, 19444e35f7b2b5da1eb338639e46bf0b5522e75c5f3Daniel Dunbar SourceLocation *Loc = 0) const; 1951eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 19633bbbc5ec8269bc2cde5b84f970fa49319a30267Douglas Gregor /// \brief If this expression refers to a bit-field, retrieve the 19733bbbc5ec8269bc2cde5b84f970fa49319a30267Douglas Gregor /// declaration of that bit-field. 19833bbbc5ec8269bc2cde5b84f970fa49319a30267Douglas Gregor FieldDecl *getBitField(); 1995f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 20038d068e8f13a119b89a3b8b0f79f35cab1ffd09aAnders Carlsson const FieldDecl *getBitField() const { 20138d068e8f13a119b89a3b8b0f79f35cab1ffd09aAnders Carlsson return const_cast<Expr*>(this)->getBitField(); 20238d068e8f13a119b89a3b8b0f79f35cab1ffd09aAnders Carlsson } 2031eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 204093802675b1548f2a5f44c29938d65cce00d58bbAnders Carlsson /// \brief Returns whether this expression refers to a vector element. 205093802675b1548f2a5f44c29938d65cce00d58bbAnders Carlsson bool refersToVectorElement() const; 206c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 2072b334bb3126a67895813e49e6228dad4aec0b4d6Chris Lattner /// isKnownToHaveBooleanValue - Return true if this is an integer expression 2082b334bb3126a67895813e49e6228dad4aec0b4d6Chris Lattner /// that is known to return 0 or 1. This happens for _Bool/bool expressions 2092b334bb3126a67895813e49e6228dad4aec0b4d6Chris Lattner /// but also int expressions which are produced by things like comparisons in 2102b334bb3126a67895813e49e6228dad4aec0b4d6Chris Lattner /// C. 2112b334bb3126a67895813e49e6228dad4aec0b4d6Chris Lattner bool isKnownToHaveBooleanValue() const; 212c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 2135f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// isIntegerConstantExpr - Return true if this expression is a valid integer 2145f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// constant expression, and, if so, return its value in Result. If not a 2155f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// valid i-c-e, return false and fill in Loc (if specified) with the location 2165f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// of the invalid expression. 217590b6646ef747d2f7b42e5f40487ff07642d7b6fChris Lattner bool isIntegerConstantExpr(llvm::APSInt &Result, ASTContext &Ctx, 218590b6646ef747d2f7b42e5f40487ff07642d7b6fChris Lattner SourceLocation *Loc = 0, 2195f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool isEvaluated = true) const; 220590b6646ef747d2f7b42e5f40487ff07642d7b6fChris Lattner bool isIntegerConstantExpr(ASTContext &Ctx, SourceLocation *Loc = 0) const { 2218070a8497c0fb3e6f70a557f788405d8945b1208Daniel Dunbar llvm::APSInt X; 222590b6646ef747d2f7b42e5f40487ff07642d7b6fChris Lattner return isIntegerConstantExpr(X, Ctx, Loc); 2235f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 224c9e8f606787b0bc0c3b08e566b87cc1751694168Eli Friedman /// isConstantInitializer - Returns true if this expression is a constant 225c9e8f606787b0bc0c3b08e566b87cc1751694168Eli Friedman /// initializer, which can be emitted at compile-time. 226c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt bool isConstantInitializer(ASTContext &Ctx) const; 2271eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 22894deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson /// EvalResult is a struct with detailed info about an evaluated expression. 22994deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson struct EvalResult { 2302d6744ff04c1690a1485178d550d2fab84a0270bDaniel Dunbar /// Val - This is the value the expression can be folded to. 23194deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson APValue Val; 2321eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 23394deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson /// HasSideEffects - Whether the evaluated expression has side effects. 23494deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson /// For example, (f() && 0) can be folded, but it still has side effects. 23594deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson bool HasSideEffects; 2361eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 23794deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson /// Diag - If the expression is unfoldable, then Diag contains a note 23894deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson /// diagnostic indicating why it's not foldable. DiagLoc indicates a caret 23994deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson /// position for the error, and DiagExpr is the expression that caused 24094deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson /// the error. 24194deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson /// If the expression is foldable, but not an integer constant expression, 24294deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson /// Diag contains a note diagnostic that describes why it isn't an integer 24394deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson /// constant expression. If the expression *is* an integer constant 24494deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson /// expression, then Diag will be zero. 24594deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson unsigned Diag; 24694deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson const Expr *DiagExpr; 24794deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson SourceLocation DiagLoc; 2481eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 24994deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson EvalResult() : HasSideEffects(false), Diag(0), DiagExpr(0) {} 25094deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson }; 25194deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson 2526ee7aa154e8bbb21a21254293410b944f78b0bfeChris Lattner /// Evaluate - Return true if this is a constant which we can fold using 253019f4e858e78587f2241ff1a76c747d7bcd7578cChris Lattner /// any crazy technique (that has nothing to do with language standards) that 254019f4e858e78587f2241ff1a76c747d7bcd7578cChris Lattner /// we want to. If this function returns true, it returns the folded constant 255019f4e858e78587f2241ff1a76c747d7bcd7578cChris Lattner /// in Result. 2565b45d4ef1ea3f04ec863daf8aa29be6c6e021750Anders Carlsson bool Evaluate(EvalResult &Result, ASTContext &Ctx) const; 2575b45d4ef1ea3f04ec863daf8aa29be6c6e021750Anders Carlsson 258660e6f79a138a30a437c02142f23e7ef4eb21b2eMike Stump /// EvaluateAsAny - The same as Evaluate, except that it also succeeds on 259660e6f79a138a30a437c02142f23e7ef4eb21b2eMike Stump /// stack based objects. 260660e6f79a138a30a437c02142f23e7ef4eb21b2eMike Stump bool EvaluateAsAny(EvalResult &Result, ASTContext &Ctx) const; 261660e6f79a138a30a437c02142f23e7ef4eb21b2eMike Stump 262cd7a445c6b46c5585580dfb652300c8483c0cb6bJohn McCall /// EvaluateAsBooleanCondition - Return true if this is a constant 263cd7a445c6b46c5585580dfb652300c8483c0cb6bJohn McCall /// which we we can fold and convert to a boolean condition using 264cd7a445c6b46c5585580dfb652300c8483c0cb6bJohn McCall /// any crazy technique that we want to. 265cd7a445c6b46c5585580dfb652300c8483c0cb6bJohn McCall bool EvaluateAsBooleanCondition(bool &Result, ASTContext &Ctx) const; 266cd7a445c6b46c5585580dfb652300c8483c0cb6bJohn McCall 2676ee7aa154e8bbb21a21254293410b944f78b0bfeChris Lattner /// isEvaluatable - Call Evaluate to see if this expression can be constant 26845b6b9d080ac56917337d73d8f1cd6374b27b05dChris Lattner /// folded, but discard the result. 26945b6b9d080ac56917337d73d8f1cd6374b27b05dChris Lattner bool isEvaluatable(ASTContext &Ctx) const; 270c44eec6dd29ee9415cbd38a35deff4c8b67abb6aAnders Carlsson 2716ddf4784a22b994b954ed74c6061d4603d474639Fariborz Jahanian /// HasSideEffects - This routine returns true for all those expressions 272c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt /// which must be evaluated each time and must not be optimization away 2736ddf4784a22b994b954ed74c6061d4603d474639Fariborz Jahanian /// or evaluated at compile time. Example is a function call, volatile 2746ddf4784a22b994b954ed74c6061d4603d474639Fariborz Jahanian /// variable read. 275393c247fe025ccb5f914e37e948192ea86faef8cFariborz Jahanian bool HasSideEffects(ASTContext &Ctx) const; 276c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 27751fe996231b1d7199f76e4005ff4c943d5deeecdAnders Carlsson /// EvaluateAsInt - Call Evaluate and return the folded integer. This 27851fe996231b1d7199f76e4005ff4c943d5deeecdAnders Carlsson /// must be called on an expression that constant folds to an integer. 27951fe996231b1d7199f76e4005ff4c943d5deeecdAnders Carlsson llvm::APSInt EvaluateAsInt(ASTContext &Ctx) const; 28051fe996231b1d7199f76e4005ff4c943d5deeecdAnders Carlsson 281b2f295c8050fb8c141bf2cf38eed0a56e99d0092Eli Friedman /// EvaluateAsLValue - Evaluate an expression to see if it's a lvalue 282b2f295c8050fb8c141bf2cf38eed0a56e99d0092Eli Friedman /// with link time known address. 2831b78276a75a5a0f496a82429c1ff9604d622a76dAnders Carlsson bool EvaluateAsLValue(EvalResult &Result, ASTContext &Ctx) const; 2841b78276a75a5a0f496a82429c1ff9604d622a76dAnders Carlsson 285b2f295c8050fb8c141bf2cf38eed0a56e99d0092Eli Friedman /// EvaluateAsAnyLValue - The same as EvaluateAsLValue, except that it 286b2f295c8050fb8c141bf2cf38eed0a56e99d0092Eli Friedman /// also succeeds on stack based, immutable address lvalues. 287b2f295c8050fb8c141bf2cf38eed0a56e99d0092Eli Friedman bool EvaluateAsAnyLValue(EvalResult &Result, ASTContext &Ctx) const; 288b2f295c8050fb8c141bf2cf38eed0a56e99d0092Eli Friedman 289ce94049b69f75b44c18584fe79cd238978b6b0d5Douglas Gregor /// \brief Enumeration used to describe how \c isNullPointerConstant() 290ce94049b69f75b44c18584fe79cd238978b6b0d5Douglas Gregor /// should cope with value-dependent expressions. 291ce94049b69f75b44c18584fe79cd238978b6b0d5Douglas Gregor enum NullPointerConstantValueDependence { 292ce94049b69f75b44c18584fe79cd238978b6b0d5Douglas Gregor /// \brief Specifies that the expression should never be value-dependent. 293ce94049b69f75b44c18584fe79cd238978b6b0d5Douglas Gregor NPC_NeverValueDependent = 0, 294c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 295ce94049b69f75b44c18584fe79cd238978b6b0d5Douglas Gregor /// \brief Specifies that a value-dependent expression of integral or 296ce94049b69f75b44c18584fe79cd238978b6b0d5Douglas Gregor /// dependent type should be considered a null pointer constant. 297ce94049b69f75b44c18584fe79cd238978b6b0d5Douglas Gregor NPC_ValueDependentIsNull, 298c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 299ce94049b69f75b44c18584fe79cd238978b6b0d5Douglas Gregor /// \brief Specifies that a value-dependent expression should be considered 300ce94049b69f75b44c18584fe79cd238978b6b0d5Douglas Gregor /// to never be a null pointer constant. 301ce94049b69f75b44c18584fe79cd238978b6b0d5Douglas Gregor NPC_ValueDependentIsNotNull 302ce94049b69f75b44c18584fe79cd238978b6b0d5Douglas Gregor }; 303c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 304efa9b3877ef298bcb792600ac33521827e1f7fafAnders Carlsson /// isNullPointerConstant - C99 6.3.2.3p3 - Return true if this is either an 305efa9b3877ef298bcb792600ac33521827e1f7fafAnders Carlsson /// integer constant expression with the value zero, or if this is one that is 306efa9b3877ef298bcb792600ac33521827e1f7fafAnders Carlsson /// cast to void*. 307ce94049b69f75b44c18584fe79cd238978b6b0d5Douglas Gregor bool isNullPointerConstant(ASTContext &Ctx, 308ce94049b69f75b44c18584fe79cd238978b6b0d5Douglas Gregor NullPointerConstantValueDependence NPC) const; 309efa9b3877ef298bcb792600ac33521827e1f7fafAnders Carlsson 31044baa8abba2a1552b6b50bf750a8750ab9da9f76Fariborz Jahanian /// isOBJCGCCandidate - Return true if this expression may be used in a read/ 3111eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /// write barrier. 312102e390bcb5a1fb1a8fdbc8505e6dfd905374bbdFariborz Jahanian bool isOBJCGCCandidate(ASTContext &Ctx) const; 3131eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3144e99a5fc3b203397a91136c6e695e405fb8fc606Ted Kremenek /// IgnoreParens - Ignore parentheses. If this Expr is a ParenExpr, return 3151eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /// its subexpression. If that subexpression is also a ParenExpr, 3164e99a5fc3b203397a91136c6e695e405fb8fc606Ted Kremenek /// then this method recursively returns its subexpression, and so forth. 3174e99a5fc3b203397a91136c6e695e405fb8fc606Ted Kremenek /// Otherwise, the method returns the current Expr. 3182b334bb3126a67895813e49e6228dad4aec0b4d6Chris Lattner Expr *IgnoreParens(); 31956f349400c5932a196509c0480ff6f99a9a0b48fChris Lattner 32056f349400c5932a196509c0480ff6f99a9a0b48fChris Lattner /// IgnoreParenCasts - Ignore parentheses and casts. Strip off any ParenExpr 32127c8dc06f65d7abcf6a7e7f64a7960c9a150ca01Douglas Gregor /// or CastExprs, returning their operand. 32256f349400c5932a196509c0480ff6f99a9a0b48fChris Lattner Expr *IgnoreParenCasts(); 3231eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3242fc46bf1a9bc31d50f82de37c70ea257d3cded27John McCall /// IgnoreParenImpCasts - Ignore parentheses and implicit casts. Strip off any 3252fc46bf1a9bc31d50f82de37c70ea257d3cded27John McCall /// ParenExpr or ImplicitCastExprs, returning their operand. 3262fc46bf1a9bc31d50f82de37c70ea257d3cded27John McCall Expr *IgnoreParenImpCasts(); 3272fc46bf1a9bc31d50f82de37c70ea257d3cded27John McCall 328ecdd84147c0765caa999ddc22dde25b42712bb4dChris Lattner /// IgnoreParenNoopCasts - Ignore parentheses and casts that do not change the 329ecdd84147c0765caa999ddc22dde25b42712bb4dChris Lattner /// value (including ptr->int casts of the same size). Strip off any 330ecdd84147c0765caa999ddc22dde25b42712bb4dChris Lattner /// ParenExpr or CastExprs, returning their operand. 331ecdd84147c0765caa999ddc22dde25b42712bb4dChris Lattner Expr *IgnoreParenNoopCasts(ASTContext &Ctx); 3321eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3336eef519fc8a97bb7ca6066f23d35e10f06b2c1b5Douglas Gregor /// \brief Determine whether this expression is a default function argument. 3346eef519fc8a97bb7ca6066f23d35e10f06b2c1b5Douglas Gregor /// 3356eef519fc8a97bb7ca6066f23d35e10f06b2c1b5Douglas Gregor /// Default arguments are implicitly generated in the abstract syntax tree 336c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt /// by semantic analysis for function calls, object constructions, etc. in 3376eef519fc8a97bb7ca6066f23d35e10f06b2c1b5Douglas Gregor /// C++. Default arguments are represented by \c CXXDefaultArgExpr nodes; 3386eef519fc8a97bb7ca6066f23d35e10f06b2c1b5Douglas Gregor /// this routine also looks through any implicit casts to determine whether 3396eef519fc8a97bb7ca6066f23d35e10f06b2c1b5Douglas Gregor /// the expression is a default argument. 3406eef519fc8a97bb7ca6066f23d35e10f06b2c1b5Douglas Gregor bool isDefaultArgument() const; 341c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 3422f59979a7cc7929f53c9984423b0abeb83113442Douglas Gregor /// \brief Determine whether this expression directly creates a 3432f59979a7cc7929f53c9984423b0abeb83113442Douglas Gregor /// temporary object (of class type). 3442f59979a7cc7929f53c9984423b0abeb83113442Douglas Gregor bool isTemporaryObject() const { return getTemporaryObject() != 0; } 3452f59979a7cc7929f53c9984423b0abeb83113442Douglas Gregor 3462f59979a7cc7929f53c9984423b0abeb83113442Douglas Gregor /// \brief If this expression directly creates a temporary object of 3472f59979a7cc7929f53c9984423b0abeb83113442Douglas Gregor /// class type, return the expression that actually constructs that 3482f59979a7cc7929f53c9984423b0abeb83113442Douglas Gregor /// temporary object. 3492f59979a7cc7929f53c9984423b0abeb83113442Douglas Gregor const Expr *getTemporaryObject() const; 3502f59979a7cc7929f53c9984423b0abeb83113442Douglas Gregor 3512b334bb3126a67895813e49e6228dad4aec0b4d6Chris Lattner const Expr *IgnoreParens() const { 3524e99a5fc3b203397a91136c6e695e405fb8fc606Ted Kremenek return const_cast<Expr*>(this)->IgnoreParens(); 3534e99a5fc3b203397a91136c6e695e405fb8fc606Ted Kremenek } 35456f349400c5932a196509c0480ff6f99a9a0b48fChris Lattner const Expr *IgnoreParenCasts() const { 35556f349400c5932a196509c0480ff6f99a9a0b48fChris Lattner return const_cast<Expr*>(this)->IgnoreParenCasts(); 35656f349400c5932a196509c0480ff6f99a9a0b48fChris Lattner } 357ecdd84147c0765caa999ddc22dde25b42712bb4dChris Lattner const Expr *IgnoreParenNoopCasts(ASTContext &Ctx) const { 358ecdd84147c0765caa999ddc22dde25b42712bb4dChris Lattner return const_cast<Expr*>(this)->IgnoreParenNoopCasts(Ctx); 359ecdd84147c0765caa999ddc22dde25b42712bb4dChris Lattner } 3601eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 361898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor static bool hasAnyTypeDependentArguments(Expr** Exprs, unsigned NumExprs); 362898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor static bool hasAnyValueDependentArguments(Expr** Exprs, unsigned NumExprs); 363898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor 3641eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 3655f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return T->getStmtClass() >= firstExprConstant && 3661eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump T->getStmtClass() <= lastExprConstant; 3675f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 3685f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const Expr *) { return true; } 3695f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 3705f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 3711eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3725549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek//===----------------------------------------------------------------------===// 3735f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// Primary Expressions. 3745f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer//===----------------------------------------------------------------------===// 3755f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 376a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor/// \brief Represents the qualifier that may precede a C++ name, e.g., the 377a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor/// "std::" in "std::sort". 378a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregorstruct NameQualifier { 379a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// \brief The nested name specifier. 380a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor NestedNameSpecifier *NNS; 381c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 382a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// \brief The source range covered by the nested name specifier. 383a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor SourceRange Range; 384a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor}; 385a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor 386a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor/// \brief Represents an explicit template argument list in C++, e.g., 387a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor/// the "<int>" in "sort<int>". 388a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregorstruct ExplicitTemplateArgumentList { 389a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// \brief The source location of the left angle bracket ('<'); 390a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor SourceLocation LAngleLoc; 391c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 392a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// \brief The source location of the right angle bracket ('>'); 393a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor SourceLocation RAngleLoc; 394c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 395a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// \brief The number of template arguments in TemplateArgs. 396a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// The actual template arguments (if any) are stored after the 397a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// ExplicitTemplateArgumentList structure. 398a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor unsigned NumTemplateArgs; 399c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 400a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// \brief Retrieve the template arguments 401833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall TemplateArgumentLoc *getTemplateArgs() { 402833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall return reinterpret_cast<TemplateArgumentLoc *> (this + 1); 403a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor } 404c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 405a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// \brief Retrieve the template arguments 406833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall const TemplateArgumentLoc *getTemplateArgs() const { 407833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall return reinterpret_cast<const TemplateArgumentLoc *> (this + 1); 408a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor } 409d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall 410d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall void initializeFrom(const TemplateArgumentListInfo &List); 411d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall void copyInto(TemplateArgumentListInfo &List) const; 412d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall static std::size_t sizeFor(const TemplateArgumentListInfo &List); 413a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor}; 414c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 4155f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// DeclRefExpr - [C99 6.5.1p2] - A reference to a declared variable, function, 4165f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// enum, etc. 4175f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass DeclRefExpr : public Expr { 418a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor enum { 419c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt // Flag on DecoratedD that specifies when this declaration reference 420a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor // expression has a C++ nested-name-specifier. 421a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor HasQualifierFlag = 0x01, 422c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt // Flag on DecoratedD that specifies when this declaration reference 423a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor // expression has an explicit C++ template argument list. 424a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor HasExplicitTemplateArgumentListFlag = 0x02 425a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor }; 426c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 427c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt // DecoratedD - The declaration that we are referencing, plus two bits to 428a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor // indicate whether (1) the declaration's name was explicitly qualified and 429c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt // (2) the declaration's name was followed by an explicit template 430a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor // argument list. 431dbd872f273a8dbf22e089b3def6c09f0a460965dJohn McCall llvm::PointerIntPair<ValueDecl *, 2> DecoratedD; 432c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 433a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor // Loc - The location of the declaration name itself. 4345f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation Loc; 4359e922b1663ecb95dc7eee03002fd66ed18fb3192Argyrios Kyrtzidis 436a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// \brief Retrieve the qualifier that preceded the declaration name, if any. 437a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor NameQualifier *getNameQualifier() { 4382cf719c3c3d805f630dfc6b1255e52647820888eSebastian Redl if ((DecoratedD.getInt() & HasQualifierFlag) == 0) 439a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor return 0; 440c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 441a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor return reinterpret_cast<NameQualifier *> (this + 1); 442a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor } 443c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 444a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// \brief Retrieve the qualifier that preceded the member name, if any. 445a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor const NameQualifier *getNameQualifier() const { 446a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor return const_cast<DeclRefExpr *>(this)->getNameQualifier(); 447a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor } 448c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 449a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// \brief Retrieve the explicit template argument list that followed the 450a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// member template name, if any. 451a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor ExplicitTemplateArgumentList *getExplicitTemplateArgumentList() { 4522cf719c3c3d805f630dfc6b1255e52647820888eSebastian Redl if ((DecoratedD.getInt() & HasExplicitTemplateArgumentListFlag) == 0) 453a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor return 0; 454c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 4552cf719c3c3d805f630dfc6b1255e52647820888eSebastian Redl if ((DecoratedD.getInt() & HasQualifierFlag) == 0) 456a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor return reinterpret_cast<ExplicitTemplateArgumentList *>(this + 1); 457c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 458a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor return reinterpret_cast<ExplicitTemplateArgumentList *>( 459a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor getNameQualifier() + 1); 460a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor } 461c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 462a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// \brief Retrieve the explicit template argument list that followed the 463a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// member template name, if any. 464a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor const ExplicitTemplateArgumentList *getExplicitTemplateArgumentList() const { 465a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor return const_cast<DeclRefExpr *>(this)->getExplicitTemplateArgumentList(); 466a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor } 467c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 468a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor DeclRefExpr(NestedNameSpecifier *Qualifier, SourceRange QualifierRange, 469dbd872f273a8dbf22e089b3def6c09f0a460965dJohn McCall ValueDecl *D, SourceLocation NameLoc, 470d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall const TemplateArgumentListInfo *TemplateArgs, 4710da76df9218d7c27b471b0a4d83a5b29fe24e5b4Douglas Gregor QualType T); 472c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 4739e922b1663ecb95dc7eee03002fd66ed18fb3192Argyrios Kyrtzidisprotected: 4740da76df9218d7c27b471b0a4d83a5b29fe24e5b4Douglas Gregor /// \brief Computes the type- and value-dependence flags for this 4750da76df9218d7c27b471b0a4d83a5b29fe24e5b4Douglas Gregor /// declaration reference expression. 4760da76df9218d7c27b471b0a4d83a5b29fe24e5b4Douglas Gregor void computeDependence(); 4779e922b1663ecb95dc7eee03002fd66ed18fb3192Argyrios Kyrtzidis 478dbd872f273a8dbf22e089b3def6c09f0a460965dJohn McCall DeclRefExpr(StmtClass SC, ValueDecl *d, QualType t, SourceLocation l) : 4790da76df9218d7c27b471b0a4d83a5b29fe24e5b4Douglas Gregor Expr(SC, t, false, false), DecoratedD(d, 0), Loc(l) { 4800da76df9218d7c27b471b0a4d83a5b29fe24e5b4Douglas Gregor computeDependence(); 4810da76df9218d7c27b471b0a4d83a5b29fe24e5b4Douglas Gregor } 4821a49af9681c350fef58e677f85ccb9a77e8e9d0aDouglas Gregor 4835f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 484dbd872f273a8dbf22e089b3def6c09f0a460965dJohn McCall DeclRefExpr(ValueDecl *d, QualType t, SourceLocation l) : 4850da76df9218d7c27b471b0a4d83a5b29fe24e5b4Douglas Gregor Expr(DeclRefExprClass, t, false, false), DecoratedD(d, 0), Loc(l) { 4860da76df9218d7c27b471b0a4d83a5b29fe24e5b4Douglas Gregor computeDependence(); 4870da76df9218d7c27b471b0a4d83a5b29fe24e5b4Douglas Gregor } 4881eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4890b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor /// \brief Construct an empty declaration reference expression. 4901eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump explicit DeclRefExpr(EmptyShell Empty) 4910b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor : Expr(DeclRefExprClass, Empty) { } 4920b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor 493a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor static DeclRefExpr *Create(ASTContext &Context, 494a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor NestedNameSpecifier *Qualifier, 495a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor SourceRange QualifierRange, 496dbd872f273a8dbf22e089b3def6c09f0a460965dJohn McCall ValueDecl *D, 497a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor SourceLocation NameLoc, 4980da76df9218d7c27b471b0a4d83a5b29fe24e5b4Douglas Gregor QualType T, 4990da76df9218d7c27b471b0a4d83a5b29fe24e5b4Douglas Gregor const TemplateArgumentListInfo *TemplateArgs = 0); 500c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 501dbd872f273a8dbf22e089b3def6c09f0a460965dJohn McCall ValueDecl *getDecl() { return DecoratedD.getPointer(); } 502dbd872f273a8dbf22e089b3def6c09f0a460965dJohn McCall const ValueDecl *getDecl() const { return DecoratedD.getPointer(); } 503dbd872f273a8dbf22e089b3def6c09f0a460965dJohn McCall void setDecl(ValueDecl *NewD) { DecoratedD.setPointer(NewD); } 504904eed3f6148758d39a2d3c88f3133274460d645Douglas Gregor 5059e922b1663ecb95dc7eee03002fd66ed18fb3192Argyrios Kyrtzidis SourceLocation getLocation() const { return Loc; } 5060b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor void setLocation(SourceLocation L) { Loc = L; } 507a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor virtual SourceRange getSourceRange() const; 5081eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 509a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// \brief Determine whether this declaration reference was preceded by a 510a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// C++ nested-name-specifier, e.g., \c N::foo. 511a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor bool hasQualifier() const { return DecoratedD.getInt() & HasQualifierFlag; } 512c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 513a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// \brief If the name was qualified, retrieves the source range of 514a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// the nested-name-specifier that precedes the name. Otherwise, 515a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// returns an empty source range. 516a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor SourceRange getQualifierRange() const { 517a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor if (!hasQualifier()) 518a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor return SourceRange(); 519c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 520a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor return getNameQualifier()->Range; 521a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor } 522c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 523c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt /// \brief If the name was qualified, retrieves the nested-name-specifier 524a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// that precedes the name. Otherwise, returns NULL. 525a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor NestedNameSpecifier *getQualifier() const { 526a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor if (!hasQualifier()) 527a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor return 0; 528c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 529a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor return getNameQualifier()->NNS; 530a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor } 531c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 532a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// \brief Determines whether this member expression actually had a C++ 533a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// template argument list explicitly specified, e.g., x.f<int>. 534a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor bool hasExplicitTemplateArgumentList() const { 535a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor return DecoratedD.getInt() & HasExplicitTemplateArgumentListFlag; 536a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor } 537d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall 538d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall /// \brief Copies the template arguments (if present) into the given 539d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall /// structure. 540d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall void copyTemplateArgumentsInto(TemplateArgumentListInfo &List) const { 541d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall if (hasExplicitTemplateArgumentList()) 542d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall getExplicitTemplateArgumentList()->copyInto(List); 543d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall } 544c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 545a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// \brief Retrieve the location of the left angle bracket following the 546a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// member name ('<'), if any. 547a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor SourceLocation getLAngleLoc() const { 548a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor if (!hasExplicitTemplateArgumentList()) 549a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor return SourceLocation(); 550c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 551a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor return getExplicitTemplateArgumentList()->LAngleLoc; 552a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor } 553c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 554a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// \brief Retrieve the template arguments provided as part of this 555a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// template-id. 556833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall const TemplateArgumentLoc *getTemplateArgs() const { 557a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor if (!hasExplicitTemplateArgumentList()) 558a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor return 0; 559c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 560a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor return getExplicitTemplateArgumentList()->getTemplateArgs(); 561a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor } 562c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 563a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// \brief Retrieve the number of template arguments provided as part of this 564a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// template-id. 565a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor unsigned getNumTemplateArgs() const { 566a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor if (!hasExplicitTemplateArgumentList()) 567a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor return 0; 568c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 569a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor return getExplicitTemplateArgumentList()->NumTemplateArgs; 570a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor } 571c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 572a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// \brief Retrieve the location of the right angle bracket following the 573a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// template arguments ('>'). 574a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor SourceLocation getRAngleLoc() const { 575a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor if (!hasExplicitTemplateArgumentList()) 576a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor return SourceLocation(); 577c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 578a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor return getExplicitTemplateArgumentList()->RAngleLoc; 579a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor } 580c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 5811eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 58299e9b4d172f6877e6ba5ebe75bb8238721f5e01cDouglas Gregor return T->getStmtClass() == DeclRefExprClass; 5835f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 5845f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const DeclRefExpr *) { return true; } 5851eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 58677ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek // Iterators 58777ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_begin(); 58877ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_end(); 5895f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 5905f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 591d9f6910f4ef37c0e8eeee2a01287d9572c3176efChris Lattner/// PredefinedExpr - [C99 6.4.2.2] - A predefined identifier such as __func__. 592d9f6910f4ef37c0e8eeee2a01287d9572c3176efChris Lattnerclass PredefinedExpr : public Expr { 593227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlssonpublic: 594227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson enum IdentType { 595227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson Func, 596227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson Function, 597848fa64143fbe5ae62a601ad61277f741e54dfabAnders Carlsson PrettyFunction, 598848fa64143fbe5ae62a601ad61277f741e54dfabAnders Carlsson /// PrettyFunctionNoVirtual - The same as PrettyFunction, except that the 599848fa64143fbe5ae62a601ad61277f741e54dfabAnders Carlsson /// 'virtual' keyword is omitted for virtual member functions. 600848fa64143fbe5ae62a601ad61277f741e54dfabAnders Carlsson PrettyFunctionNoVirtual 601227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson }; 6021eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 603227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlssonprivate: 604227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson SourceLocation Loc; 605227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson IdentType Type; 606227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlssonpublic: 6071eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump PredefinedExpr(SourceLocation l, QualType type, IdentType IT) 608c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt : Expr(PredefinedExprClass, type, type->isDependentType(), 609773f3973cf5e2b6b8788e895967dcb3c1e6ffe79Anders Carlsson type->isDependentType()), Loc(l), Type(IT) {} 6101eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 61117fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor /// \brief Construct an empty predefined expression. 6121eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump explicit PredefinedExpr(EmptyShell Empty) 61317fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor : Expr(PredefinedExprClass, Empty) { } 61417fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor 615227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson IdentType getIdentType() const { return Type; } 61617fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor void setIdentType(IdentType IT) { Type = IT; } 61717fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor 61817fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor SourceLocation getLocation() const { return Loc; } 61917fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor void setLocation(SourceLocation L) { Loc = L; } 62017fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor 621848fa64143fbe5ae62a601ad61277f741e54dfabAnders Carlsson static std::string ComputeName(IdentType IT, const Decl *CurrentDecl); 6223a082d81006e7a2e01a6e431a22e21c78490ff8fAnders Carlsson 623227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson virtual SourceRange getSourceRange() const { return SourceRange(Loc); } 624227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson 6251eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 6261eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == PredefinedExprClass; 627227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson } 628d9f6910f4ef37c0e8eeee2a01287d9572c3176efChris Lattner static bool classof(const PredefinedExpr *) { return true; } 6291eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 63077ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek // Iterators 63177ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_begin(); 63277ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_end(); 633227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson}; 634227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson 6355f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass IntegerLiteral : public Expr { 6365f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::APInt Value; 6375f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation Loc; 6385f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 6391eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // type should be IntTy, LongTy, LongLongTy, UnsignedIntTy, UnsignedLongTy, 6405f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // or UnsignedLongLongTy 6415f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer IntegerLiteral(const llvm::APInt &V, QualType type, SourceLocation l) 6422333f7727f97018d6742e1e0938133bcfad967abEli Friedman : Expr(IntegerLiteralClass, type, false, false), Value(V), Loc(l) { 6435f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer assert(type->isIntegerType() && "Illegal type in IntegerLiteral"); 6445f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 645a135fb43eb94524a6529768596a4533eed9aa70dAnders Carlsson 6460b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor /// \brief Construct an empty integer literal. 6471eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump explicit IntegerLiteral(EmptyShell Empty) 6480b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor : Expr(IntegerLiteralClass, Empty) { } 6490b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor 6505f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer const llvm::APInt &getValue() const { return Value; } 6515f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer virtual SourceRange getSourceRange() const { return SourceRange(Loc); } 6525f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 653313a81dd820c9b2c0203bdcd974c781a81e4f0cfDouglas Gregor /// \brief Retrieve the location of the literal. 654313a81dd820c9b2c0203bdcd974c781a81e4f0cfDouglas Gregor SourceLocation getLocation() const { return Loc; } 655313a81dd820c9b2c0203bdcd974c781a81e4f0cfDouglas Gregor 6560b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor void setValue(const llvm::APInt &Val) { Value = Val; } 6570b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor void setLocation(SourceLocation Location) { Loc = Location; } 6580b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor 6591eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 6601eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == IntegerLiteralClass; 6615f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 6625f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const IntegerLiteral *) { return true; } 6631eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 66477ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek // Iterators 66577ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_begin(); 66677ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_end(); 6675f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 6685f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 6695f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass CharacterLiteral : public Expr { 6705f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer unsigned Value; 6715f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation Loc; 672c250aae4f645833aed3a6321bc8598f7330dce8dChris Lattner bool IsWide; 6735f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 6745f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // type should be IntTy 675c250aae4f645833aed3a6321bc8598f7330dce8dChris Lattner CharacterLiteral(unsigned value, bool iswide, QualType type, SourceLocation l) 6762333f7727f97018d6742e1e0938133bcfad967abEli Friedman : Expr(CharacterLiteralClass, type, false, false), Value(value), Loc(l), 6772333f7727f97018d6742e1e0938133bcfad967abEli Friedman IsWide(iswide) { 6785f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 6790b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor 6800b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor /// \brief Construct an empty character literal. 6810b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor CharacterLiteral(EmptyShell Empty) : Expr(CharacterLiteralClass, Empty) { } 6820b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor 683018d8e0596dd57401eeddcf11ac84ff0a065fbbeChris Lattner SourceLocation getLocation() const { return Loc; } 684c250aae4f645833aed3a6321bc8598f7330dce8dChris Lattner bool isWide() const { return IsWide; } 6851eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 6865f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer virtual SourceRange getSourceRange() const { return SourceRange(Loc); } 6871eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 6885f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer unsigned getValue() const { return Value; } 6895f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 6900b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor void setLocation(SourceLocation Location) { Loc = Location; } 6910b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor void setWide(bool W) { IsWide = W; } 6920b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor void setValue(unsigned Val) { Value = Val; } 6930b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor 6941eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 6951eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == CharacterLiteralClass; 6965f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 6975f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const CharacterLiteral *) { return true; } 69877ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek 69977ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek // Iterators 70077ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_begin(); 70177ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_end(); 7025f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 7035f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 7045f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass FloatingLiteral : public Expr { 705525a05093a4816af961fe2bc6b8a81c17e2e26c2Chris Lattner llvm::APFloat Value; 706720c4ec57b6110873cd533ad434853a27e7c3f4aTed Kremenek bool IsExact : 1; 7075f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation Loc; 7085f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 7091eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump FloatingLiteral(const llvm::APFloat &V, bool isexact, 710720c4ec57b6110873cd533ad434853a27e7c3f4aTed Kremenek QualType Type, SourceLocation L) 7112333f7727f97018d6742e1e0938133bcfad967abEli Friedman : Expr(FloatingLiteralClass, Type, false, false), Value(V), 7122333f7727f97018d6742e1e0938133bcfad967abEli Friedman IsExact(isexact), Loc(L) {} 7135f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 71417fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor /// \brief Construct an empty floating-point literal. 7151eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump explicit FloatingLiteral(EmptyShell Empty) 71617fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor : Expr(FloatingLiteralClass, Empty), Value(0.0) { } 71717fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor 718c9bec4bfea9090a08dd83a7b213f0c8adf8d78ecChris Lattner const llvm::APFloat &getValue() const { return Value; } 71917fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor void setValue(const llvm::APFloat &Val) { Value = Val; } 72017fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor 721720c4ec57b6110873cd533ad434853a27e7c3f4aTed Kremenek bool isExact() const { return IsExact; } 72217fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor void setExact(bool E) { IsExact = E; } 723c9bec4bfea9090a08dd83a7b213f0c8adf8d78ecChris Lattner 724da8249e57f3badecf925571881fe57243935c6c1Chris Lattner /// getValueAsApproximateDouble - This returns the value as an inaccurate 725da8249e57f3badecf925571881fe57243935c6c1Chris Lattner /// double. Note that this may cause loss of precision, but is useful for 726da8249e57f3badecf925571881fe57243935c6c1Chris Lattner /// debugging dumps, etc. 727da8249e57f3badecf925571881fe57243935c6c1Chris Lattner double getValueAsApproximateDouble() const; 7281eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 72917fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor SourceLocation getLocation() const { return Loc; } 73017fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor void setLocation(SourceLocation L) { Loc = L; } 73117fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor 7325f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer virtual SourceRange getSourceRange() const { return SourceRange(Loc); } 7335f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 7341eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 7351eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == FloatingLiteralClass; 7365f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 7375f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const FloatingLiteral *) { return true; } 7381eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 73977ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek // Iterators 74077ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_begin(); 74177ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_end(); 7425f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 7435f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 7445d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner/// ImaginaryLiteral - We support imaginary integer and floating point literals, 7455d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner/// like "1.0i". We represent these as a wrapper around FloatingLiteral and 7465d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner/// IntegerLiteral classes. Instances of this class always have a Complex type 7475d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner/// whose element type matches the subexpression. 7485d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner/// 7495d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattnerclass ImaginaryLiteral : public Expr { 7505549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Stmt *Val; 7515d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattnerpublic: 7525d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner ImaginaryLiteral(Expr *val, QualType Ty) 7532333f7727f97018d6742e1e0938133bcfad967abEli Friedman : Expr(ImaginaryLiteralClass, Ty, false, false), Val(val) {} 7541eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 755cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor /// \brief Build an empty imaginary literal. 7561eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump explicit ImaginaryLiteral(EmptyShell Empty) 757cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor : Expr(ImaginaryLiteralClass, Empty) { } 758cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor 7595549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek const Expr *getSubExpr() const { return cast<Expr>(Val); } 7605549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getSubExpr() { return cast<Expr>(Val); } 761cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor void setSubExpr(Expr *E) { Val = E; } 762cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor 7635d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner virtual SourceRange getSourceRange() const { return Val->getSourceRange(); } 7641eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 7651eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == ImaginaryLiteralClass; 7665d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner } 7675d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner static bool classof(const ImaginaryLiteral *) { return true; } 7681eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 7695d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner // Iterators 7705d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner virtual child_iterator child_begin(); 7715d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner virtual child_iterator child_end(); 7725d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner}; 7735d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner 774e6a82b2c29ad05534841e5f8fd033fb17b6f61e2Ted Kremenek/// StringLiteral - This represents a string literal expression, e.g. "foo" 775e6a82b2c29ad05534841e5f8fd033fb17b6f61e2Ted Kremenek/// or L"bar" (wide strings). The actual string is returned by getStrData() 776e6a82b2c29ad05534841e5f8fd033fb17b6f61e2Ted Kremenek/// is NOT null-terminated, and the length of the string is determined by 777a7ad98ff0919d6a24ea7c46634ea29bea551c1a0Chris Lattner/// calling getByteLength(). The C type for a string is always a 778c4a09c189981b4561428e4b56fd250718e2717bbChris Lattner/// ConstantArrayType. In C++, the char type is const qualified, in C it is 779c4a09c189981b4561428e4b56fd250718e2717bbChris Lattner/// not. 780690398188ea5b428f06aa13c7d4ce6eb741ad4f9Chris Lattner/// 781690398188ea5b428f06aa13c7d4ce6eb741ad4f9Chris Lattner/// Note that strings in C can be formed by concatenation of multiple string 7828bea7c0ee44c71c817de7dc2be932b73bec90c9fChris Lattner/// literal pptokens in translation phase #6. This keeps track of the locations 783690398188ea5b428f06aa13c7d4ce6eb741ad4f9Chris Lattner/// of each of these pieces. 784c4a09c189981b4561428e4b56fd250718e2717bbChris Lattner/// 785c4a09c189981b4561428e4b56fd250718e2717bbChris Lattner/// Strings in C can also be truncated and extended by assigning into arrays, 786c4a09c189981b4561428e4b56fd250718e2717bbChris Lattner/// e.g. with constructs like: 787c4a09c189981b4561428e4b56fd250718e2717bbChris Lattner/// char X[2] = "foobar"; 788c4a09c189981b4561428e4b56fd250718e2717bbChris Lattner/// In this case, getByteLength() will return 6, but the string literal will 789c4a09c189981b4561428e4b56fd250718e2717bbChris Lattner/// have type "char[2]". 7905f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass StringLiteral : public Expr { 7915f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer const char *StrData; 7925f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer unsigned ByteLength; 7935f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool IsWide; 794726e168dc09fb23f53c7b004f8e919421ee91806Chris Lattner unsigned NumConcatenated; 795726e168dc09fb23f53c7b004f8e919421ee91806Chris Lattner SourceLocation TokLocs[1]; 7962085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner 7972333f7727f97018d6742e1e0938133bcfad967abEli Friedman StringLiteral(QualType Ty) : Expr(StringLiteralClass, Ty, false, false) {} 7981eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 79942602bb40aefcc2751d4078ba88aacf4d965c9bdDouglas Gregorprotected: 80042602bb40aefcc2751d4078ba88aacf4d965c9bdDouglas Gregor virtual void DoDestroy(ASTContext &C); 80142602bb40aefcc2751d4078ba88aacf4d965c9bdDouglas Gregor 8025f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 8032085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner /// This is the "fully general" constructor that allows representation of 8042085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner /// strings formed from multiple concatenated tokens. 8052085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner static StringLiteral *Create(ASTContext &C, const char *StrData, 8062085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner unsigned ByteLength, bool Wide, QualType Ty, 807a135fb43eb94524a6529768596a4533eed9aa70dAnders Carlsson const SourceLocation *Loc, unsigned NumStrs); 8082085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner 8092085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner /// Simple constructor for string literals made from one token. 8101eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static StringLiteral *Create(ASTContext &C, const char *StrData, 8112085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner unsigned ByteLength, 8122085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner bool Wide, QualType Ty, SourceLocation Loc) { 8132085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner return Create(C, StrData, ByteLength, Wide, Ty, &Loc, 1); 8142085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner } 815a135fb43eb94524a6529768596a4533eed9aa70dAnders Carlsson 816673ecd6a4a9f7c12fb6f76f84f654dbdcdc89e76Douglas Gregor /// \brief Construct an empty string literal. 817673ecd6a4a9f7c12fb6f76f84f654dbdcdc89e76Douglas Gregor static StringLiteral *CreateEmpty(ASTContext &C, unsigned NumStrs); 818673ecd6a4a9f7c12fb6f76f84f654dbdcdc89e76Douglas Gregor 819b648023da23e8b227cdda57a241db4c6f368726bDaniel Dunbar llvm::StringRef getString() const { 820b648023da23e8b227cdda57a241db4c6f368726bDaniel Dunbar return llvm::StringRef(StrData, ByteLength); 821b648023da23e8b227cdda57a241db4c6f368726bDaniel Dunbar } 822b648023da23e8b227cdda57a241db4c6f368726bDaniel Dunbar // FIXME: These are deprecated, replace with StringRef. 8235f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer const char *getStrData() const { return StrData; } 8245f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer unsigned getByteLength() const { return ByteLength; } 825673ecd6a4a9f7c12fb6f76f84f654dbdcdc89e76Douglas Gregor 826673ecd6a4a9f7c12fb6f76f84f654dbdcdc89e76Douglas Gregor /// \brief Sets the string data to the given string data. 827b648023da23e8b227cdda57a241db4c6f368726bDaniel Dunbar void setString(ASTContext &C, llvm::StringRef Str); 828673ecd6a4a9f7c12fb6f76f84f654dbdcdc89e76Douglas Gregor 8295f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool isWide() const { return IsWide; } 830673ecd6a4a9f7c12fb6f76f84f654dbdcdc89e76Douglas Gregor void setWide(bool W) { IsWide = W; } 831673ecd6a4a9f7c12fb6f76f84f654dbdcdc89e76Douglas Gregor 8328d4141f83d9de379547cf05bd75d4c6cf894b189Steve Naroff bool containsNonAsciiOrNull() const { 833b648023da23e8b227cdda57a241db4c6f368726bDaniel Dunbar llvm::StringRef Str = getString(); 834b648023da23e8b227cdda57a241db4c6f368726bDaniel Dunbar for (unsigned i = 0, e = Str.size(); i != e; ++i) 835b648023da23e8b227cdda57a241db4c6f368726bDaniel Dunbar if (!isascii(Str[i]) || !Str[i]) 83633fdb738a6c125f4c788733897021b7c1a062b0cSteve Naroff return true; 83733fdb738a6c125f4c788733897021b7c1a062b0cSteve Naroff return false; 83833fdb738a6c125f4c788733897021b7c1a062b0cSteve Naroff } 839726e168dc09fb23f53c7b004f8e919421ee91806Chris Lattner /// getNumConcatenated - Get the number of string literal tokens that were 840726e168dc09fb23f53c7b004f8e919421ee91806Chris Lattner /// concatenated in translation phase #6 to form this string literal. 841726e168dc09fb23f53c7b004f8e919421ee91806Chris Lattner unsigned getNumConcatenated() const { return NumConcatenated; } 8421eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 843726e168dc09fb23f53c7b004f8e919421ee91806Chris Lattner SourceLocation getStrTokenLoc(unsigned TokNum) const { 844726e168dc09fb23f53c7b004f8e919421ee91806Chris Lattner assert(TokNum < NumConcatenated && "Invalid tok number"); 845726e168dc09fb23f53c7b004f8e919421ee91806Chris Lattner return TokLocs[TokNum]; 846726e168dc09fb23f53c7b004f8e919421ee91806Chris Lattner } 8471eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump void setStrTokenLoc(unsigned TokNum, SourceLocation L) { 848673ecd6a4a9f7c12fb6f76f84f654dbdcdc89e76Douglas Gregor assert(TokNum < NumConcatenated && "Invalid tok number"); 849673ecd6a4a9f7c12fb6f76f84f654dbdcdc89e76Douglas Gregor TokLocs[TokNum] = L; 850673ecd6a4a9f7c12fb6f76f84f654dbdcdc89e76Douglas Gregor } 851673ecd6a4a9f7c12fb6f76f84f654dbdcdc89e76Douglas Gregor 852b137299ce5bb6c36fbba651858600857fda4dd50Chris Lattner typedef const SourceLocation *tokloc_iterator; 853b137299ce5bb6c36fbba651858600857fda4dd50Chris Lattner tokloc_iterator tokloc_begin() const { return TokLocs; } 854b137299ce5bb6c36fbba651858600857fda4dd50Chris Lattner tokloc_iterator tokloc_end() const { return TokLocs+NumConcatenated; } 8555f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 8561eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump virtual SourceRange getSourceRange() const { 8571eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return SourceRange(TokLocs[0], TokLocs[NumConcatenated-1]); 8585f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 8591eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 8601eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == StringLiteralClass; 8615f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 8625f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const StringLiteral *) { return true; } 8631eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 86477ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek // Iterators 86577ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_begin(); 86677ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_end(); 8675f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 8685f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 8695f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// ParenExpr - This represents a parethesized expression, e.g. "(1)". This 8705f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// AST node is only formed if full location information is requested. 8715f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass ParenExpr : public Expr { 8725f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation L, R; 8735549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Stmt *Val; 8745f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 8755f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ParenExpr(SourceLocation l, SourceLocation r, Expr *val) 876898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor : Expr(ParenExprClass, val->getType(), 8771eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump val->isTypeDependent(), val->isValueDependent()), 878898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor L(l), R(r), Val(val) {} 8791eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 880c04db4feefa2b0dbbc6876cb4eeeee108aa6791dDouglas Gregor /// \brief Construct an empty parenthesized expression. 8811eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump explicit ParenExpr(EmptyShell Empty) 882c04db4feefa2b0dbbc6876cb4eeeee108aa6791dDouglas Gregor : Expr(ParenExprClass, Empty) { } 883c04db4feefa2b0dbbc6876cb4eeeee108aa6791dDouglas Gregor 8845549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek const Expr *getSubExpr() const { return cast<Expr>(Val); } 8855549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getSubExpr() { return cast<Expr>(Val); } 886c04db4feefa2b0dbbc6876cb4eeeee108aa6791dDouglas Gregor void setSubExpr(Expr *E) { Val = E; } 887c04db4feefa2b0dbbc6876cb4eeeee108aa6791dDouglas Gregor 888866b5c03e3b9c01cf496ad97b85a05afc917345bTed Kremenek virtual SourceRange getSourceRange() const { return SourceRange(L, R); } 8895f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 890313a81dd820c9b2c0203bdcd974c781a81e4f0cfDouglas Gregor /// \brief Get the location of the left parentheses '('. 891313a81dd820c9b2c0203bdcd974c781a81e4f0cfDouglas Gregor SourceLocation getLParen() const { return L; } 892c04db4feefa2b0dbbc6876cb4eeeee108aa6791dDouglas Gregor void setLParen(SourceLocation Loc) { L = Loc; } 893313a81dd820c9b2c0203bdcd974c781a81e4f0cfDouglas Gregor 894313a81dd820c9b2c0203bdcd974c781a81e4f0cfDouglas Gregor /// \brief Get the location of the right parentheses ')'. 895313a81dd820c9b2c0203bdcd974c781a81e4f0cfDouglas Gregor SourceLocation getRParen() const { return R; } 896c04db4feefa2b0dbbc6876cb4eeeee108aa6791dDouglas Gregor void setRParen(SourceLocation Loc) { R = Loc; } 897313a81dd820c9b2c0203bdcd974c781a81e4f0cfDouglas Gregor 8981eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 8991eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == ParenExprClass; 9005f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 9015f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const ParenExpr *) { return true; } 9021eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 90377ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek // Iterators 90477ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_begin(); 90577ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_end(); 9065f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 9075f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 9085f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 9090518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl/// UnaryOperator - This represents the unary-expression's (except sizeof and 9100518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl/// alignof), the postinc/postdec operators from postfix-expression, and various 9115f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// extensions. 912dbb36971c68ea944ac4b1fbe2d97fe7cca3b20acChris Lattner/// 913dbb36971c68ea944ac4b1fbe2d97fe7cca3b20acChris Lattner/// Notes on various nodes: 914dbb36971c68ea944ac4b1fbe2d97fe7cca3b20acChris Lattner/// 915dbb36971c68ea944ac4b1fbe2d97fe7cca3b20acChris Lattner/// Real/Imag - These return the real/imag part of a complex operand. If 916dbb36971c68ea944ac4b1fbe2d97fe7cca3b20acChris Lattner/// applied to a non-complex value, the former returns its operand and the 917dbb36971c68ea944ac4b1fbe2d97fe7cca3b20acChris Lattner/// later returns zero in the type of the operand. 918dbb36971c68ea944ac4b1fbe2d97fe7cca3b20acChris Lattner/// 91973d0d4fac161ed12926e010dcf8b448a8de6a2ecChris Lattner/// __builtin_offsetof(type, a.b[10]) is represented as a unary operator whose 9201eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// subexpression is a compound literal with the various MemberExpr and 9218ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor/// ArraySubscriptExpr's applied to it. (This is only used in C) 92273d0d4fac161ed12926e010dcf8b448a8de6a2ecChris Lattner/// 9235f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass UnaryOperator : public Expr { 9245f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 92513d130c3d225cdb5b1e6d9e86cea12eea718c707Chris Lattner // Note that additions to this should also update the StmtVisitor class. 9265f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer enum Opcode { 9275f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer PostInc, PostDec, // [C99 6.5.2.4] Postfix increment and decrement operators 9285f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer PreInc, PreDec, // [C99 6.5.3.1] Prefix increment and decrement operators. 9295f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer AddrOf, Deref, // [C99 6.5.3.2] Address and indirection operators. 9305f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Plus, Minus, // [C99 6.5.3.3] Unary arithmetic operators. 9315f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Not, LNot, // [C99 6.5.3.3] Unary arithmetic operators. 9325f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Real, Imag, // "__real expr"/"__imag expr" Extension. 93373d0d4fac161ed12926e010dcf8b448a8de6a2ecChris Lattner Extension, // __extension__ marker. 93473d0d4fac161ed12926e010dcf8b448a8de6a2ecChris Lattner OffsetOf // __builtin_offsetof 9355f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer }; 9365f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerprivate: 9375549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Stmt *Val; 9385f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Opcode Opc; 9395f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation Loc; 9401eb4433ac451dc16f4133a88af2d002ac26c58efMike Stumppublic: 9415f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 9425f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer UnaryOperator(Expr *input, Opcode opc, QualType type, SourceLocation l) 9439103bb27f4eefa0e0d7935387750e3aca24abc49Douglas Gregor : Expr(UnaryOperatorClass, type, 9449103bb27f4eefa0e0d7935387750e3aca24abc49Douglas Gregor input->isTypeDependent() && opc != OffsetOf, 9451eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump input->isValueDependent()), 9469103bb27f4eefa0e0d7935387750e3aca24abc49Douglas Gregor Val(input), Opc(opc), Loc(l) {} 9475f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 9480b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor /// \brief Build an empty unary operator. 9491eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump explicit UnaryOperator(EmptyShell Empty) 9500b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor : Expr(UnaryOperatorClass, Empty), Opc(AddrOf) { } 9510b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor 9525f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Opcode getOpcode() const { return Opc; } 9530b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor void setOpcode(Opcode O) { Opc = O; } 9540b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor 9555549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getSubExpr() const { return cast<Expr>(Val); } 9560b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor void setSubExpr(Expr *E) { Val = E; } 9570b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor 9585f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// getOperatorLoc - Return the location of the operator. 9595f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation getOperatorLoc() const { return Loc; } 9600b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor void setOperatorLoc(SourceLocation L) { Loc = L; } 9610b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor 9625f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// isPostfix - Return true if this is a postfix operation, like x++. 9632085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner static bool isPostfix(Opcode Op) { 9642085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner return Op == PostInc || Op == PostDec; 9652085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner } 9665f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 9675a56ac30d04e8f0431a08980885662a47a6308aaTed Kremenek /// isPostfix - Return true if this is a prefix operation, like --x. 9682085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner static bool isPrefix(Opcode Op) { 9692085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner return Op == PreInc || Op == PreDec; 9702085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner } 9715a56ac30d04e8f0431a08980885662a47a6308aaTed Kremenek 9725a56ac30d04e8f0431a08980885662a47a6308aaTed Kremenek bool isPrefix() const { return isPrefix(Opc); } 9735f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool isPostfix() const { return isPostfix(Opc); } 9745d826b82936beb2c32dd02460332ba8035192c65Ted Kremenek bool isIncrementOp() const {return Opc==PreInc || Opc==PostInc; } 9755f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool isIncrementDecrementOp() const { return Opc>=PostInc && Opc<=PreDec; } 9765a1deb8d9c0722beae28d693fa137bbb942bd11fAnders Carlsson bool isOffsetOfOp() const { return Opc == OffsetOf; } 9775f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool isArithmeticOp(Opcode Op) { return Op >= Plus && Op <= LNot; } 9781eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump bool isArithmeticOp() const { return isArithmeticOp(Opc); } 9791eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 9805f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// getOpcodeStr - Turn an Opcode enum value into the punctuation char it 9815f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// corresponds to, e.g. "sizeof" or "[pre]++" 9825f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static const char *getOpcodeStr(Opcode Op); 9835f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 984bc736fceca6f0bca31d16003a7587857190408fbDouglas Gregor /// \brief Retrieve the unary opcode that corresponds to the given 985bc736fceca6f0bca31d16003a7587857190408fbDouglas Gregor /// overloaded operator. 986bc736fceca6f0bca31d16003a7587857190408fbDouglas Gregor static Opcode getOverloadedOpcode(OverloadedOperatorKind OO, bool Postfix); 987bc736fceca6f0bca31d16003a7587857190408fbDouglas Gregor 988bc736fceca6f0bca31d16003a7587857190408fbDouglas Gregor /// \brief Retrieve the overloaded operator kind that corresponds to 989bc736fceca6f0bca31d16003a7587857190408fbDouglas Gregor /// the given unary opcode. 990bc736fceca6f0bca31d16003a7587857190408fbDouglas Gregor static OverloadedOperatorKind getOverloadedOperator(Opcode Opc); 991bc736fceca6f0bca31d16003a7587857190408fbDouglas Gregor 9925f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer virtual SourceRange getSourceRange() const { 9935f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (isPostfix()) 9945f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return SourceRange(Val->getLocStart(), Loc); 9955f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer else 9965f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return SourceRange(Loc, Val->getLocEnd()); 9975f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 9985f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer virtual SourceLocation getExprLoc() const { return Loc; } 9991eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 10001eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 10011eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == UnaryOperatorClass; 10025f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 10035f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const UnaryOperator *) { return true; } 10041eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 100577ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek // Iterators 100677ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_begin(); 100777ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_end(); 10085f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 10095f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 10108ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor/// OffsetOfExpr - [C99 7.17] - This represents an expression of the form 10118ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor/// offsetof(record-type, member-designator). For example, given: 10128ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor/// @code 10138ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor/// struct S { 10148ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor/// float f; 1015c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt/// double d; 10168ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor/// }; 10178ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor/// struct T { 10188ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor/// int i; 10198ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor/// struct S s[10]; 10208ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor/// }; 10218ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor/// @endcode 1022c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt/// we can represent and evaluate the expression @c offsetof(struct T, s[2].d). 10238ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor 10248ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregorclass OffsetOfExpr : public Expr { 10258ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregorpublic: 10268ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor // __builtin_offsetof(type, identifier(.identifier|[expr])*) 10278ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor class OffsetOfNode { 10288ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor public: 10298ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// \brief The kind of offsetof node we have. 10308ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor enum Kind { 1031cc8a5d5f90bbbbcb46f342117b851b7e07ec34f1Douglas Gregor /// \brief An index into an array. 10328ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor Array = 0x00, 1033cc8a5d5f90bbbbcb46f342117b851b7e07ec34f1Douglas Gregor /// \brief A field. 10348ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor Field = 0x01, 1035cc8a5d5f90bbbbcb46f342117b851b7e07ec34f1Douglas Gregor /// \brief A field in a dependent type, known only by its name. 1036cc8a5d5f90bbbbcb46f342117b851b7e07ec34f1Douglas Gregor Identifier = 0x02, 1037cc8a5d5f90bbbbcb46f342117b851b7e07ec34f1Douglas Gregor /// \brief An implicit indirection through a C++ base class, when the 1038cc8a5d5f90bbbbcb46f342117b851b7e07ec34f1Douglas Gregor /// field found is in a base class. 1039cc8a5d5f90bbbbcb46f342117b851b7e07ec34f1Douglas Gregor Base = 0x03 10408ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor }; 10418ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor 10428ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor private: 10438ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor enum { MaskBits = 2, Mask = 0x03 }; 1044c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 10458ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// \brief The source range that covers this part of the designator. 10468ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor SourceRange Range; 1047c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 10488ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// \brief The data describing the designator, which comes in three 10498ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// different forms, depending on the lower two bits. 1050c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt /// - An unsigned index into the array of Expr*'s stored after this node 10518ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// in memory, for [constant-expression] designators. 10528ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// - A FieldDecl*, for references to a known field. 10538ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// - An IdentifierInfo*, for references to a field with a given name 10548ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// when the class type is dependent. 1055c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt /// - A CXXBaseSpecifier*, for references that look at a field in a 1056cc8a5d5f90bbbbcb46f342117b851b7e07ec34f1Douglas Gregor /// base class. 10578ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor uintptr_t Data; 1058c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 10598ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor public: 10608ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// \brief Create an offsetof node that refers to an array element. 1061c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt OffsetOfNode(SourceLocation LBracketLoc, unsigned Index, 10628ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor SourceLocation RBracketLoc) 10638ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor : Range(LBracketLoc, RBracketLoc), Data((Index << 2) | Array) { } 1064c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 10658ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// \brief Create an offsetof node that refers to a field. 1066c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt OffsetOfNode(SourceLocation DotLoc, FieldDecl *Field, 10678ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor SourceLocation NameLoc) 1068c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt : Range(DotLoc.isValid()? DotLoc : NameLoc, NameLoc), 10698ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor Data(reinterpret_cast<uintptr_t>(Field) | OffsetOfNode::Field) { } 1070c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 10718ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// \brief Create an offsetof node that refers to an identifier. 10728ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor OffsetOfNode(SourceLocation DotLoc, IdentifierInfo *Name, 10738ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor SourceLocation NameLoc) 1074c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt : Range(DotLoc.isValid()? DotLoc : NameLoc, NameLoc), 10758ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor Data(reinterpret_cast<uintptr_t>(Name) | Identifier) { } 1076cc8a5d5f90bbbbcb46f342117b851b7e07ec34f1Douglas Gregor 1077cc8a5d5f90bbbbcb46f342117b851b7e07ec34f1Douglas Gregor /// \brief Create an offsetof node that refers into a C++ base class. 1078cc8a5d5f90bbbbcb46f342117b851b7e07ec34f1Douglas Gregor explicit OffsetOfNode(const CXXBaseSpecifier *Base) 1079cc8a5d5f90bbbbcb46f342117b851b7e07ec34f1Douglas Gregor : Range(), Data(reinterpret_cast<uintptr_t>(Base) | OffsetOfNode::Base) {} 1080c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 10818ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// \brief Determine what kind of offsetof node this is. 1082c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt Kind getKind() const { 10838ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor return static_cast<Kind>(Data & Mask); 10848ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor } 1085c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 10868ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// \brief For an array element node, returns the index into the array 10878ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// of expressions. 10888ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor unsigned getArrayExprIndex() const { 10898ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor assert(getKind() == Array); 10908ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor return Data >> 2; 10918ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor } 10928ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor 10938ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// \brief For a field offsetof node, returns the field. 10948ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor FieldDecl *getField() const { 10958ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor assert(getKind() == Field); 1096cc8a5d5f90bbbbcb46f342117b851b7e07ec34f1Douglas Gregor return reinterpret_cast<FieldDecl *>(Data & ~(uintptr_t)Mask); 10978ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor } 1098c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 10998ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// \brief For a field or identifier offsetof node, returns the name of 11008ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// the field. 11018ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor IdentifierInfo *getFieldName() const; 1102c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 1103cc8a5d5f90bbbbcb46f342117b851b7e07ec34f1Douglas Gregor /// \brief For a base class node, returns the base specifier. 1104cc8a5d5f90bbbbcb46f342117b851b7e07ec34f1Douglas Gregor CXXBaseSpecifier *getBase() const { 1105cc8a5d5f90bbbbcb46f342117b851b7e07ec34f1Douglas Gregor assert(getKind() == Base); 1106c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt return reinterpret_cast<CXXBaseSpecifier *>(Data & ~(uintptr_t)Mask); 1107cc8a5d5f90bbbbcb46f342117b851b7e07ec34f1Douglas Gregor } 1108c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 11098ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// \brief Retrieve the source range that covers this offsetof node. 11108ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// 11118ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// For an array element node, the source range contains the locations of 11128ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// the square brackets. For a field or identifier node, the source range 1113c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt /// contains the location of the period (if there is one) and the 11148ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// identifier. 11158ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor SourceRange getRange() const { return Range; } 11168ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor }; 11178ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor 11188ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregorprivate: 1119c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 11208ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor SourceLocation OperatorLoc, RParenLoc; 11218ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor // Base type; 11228ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor TypeSourceInfo *TSInfo; 11238ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor // Number of sub-components (i.e. instances of OffsetOfNode). 11248ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor unsigned NumComps; 11258ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor // Number of sub-expressions (i.e. array subscript expressions). 11268ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor unsigned NumExprs; 1127c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 1128c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt OffsetOfExpr(ASTContext &C, QualType type, 11298ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor SourceLocation OperatorLoc, TypeSourceInfo *tsi, 1130c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt OffsetOfNode* compsPtr, unsigned numComps, 11318ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor Expr** exprsPtr, unsigned numExprs, 11328ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor SourceLocation RParenLoc); 11338ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor 11348ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor explicit OffsetOfExpr(unsigned numComps, unsigned numExprs) 11358ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor : Expr(OffsetOfExprClass, EmptyShell()), 1136c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt TSInfo(0), NumComps(numComps), NumExprs(numExprs) {} 11378ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor 11388ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregorpublic: 1139c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 1140c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt static OffsetOfExpr *Create(ASTContext &C, QualType type, 1141c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt SourceLocation OperatorLoc, TypeSourceInfo *tsi, 1142c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt OffsetOfNode* compsPtr, unsigned numComps, 11438ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor Expr** exprsPtr, unsigned numExprs, 11448ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor SourceLocation RParenLoc); 11458ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor 1146c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt static OffsetOfExpr *CreateEmpty(ASTContext &C, 11478ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor unsigned NumComps, unsigned NumExprs); 11488ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor 11498ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// getOperatorLoc - Return the location of the operator. 11508ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor SourceLocation getOperatorLoc() const { return OperatorLoc; } 11518ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor void setOperatorLoc(SourceLocation L) { OperatorLoc = L; } 11528ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor 11538ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// \brief Return the location of the right parentheses. 11548ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor SourceLocation getRParenLoc() const { return RParenLoc; } 11558ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor void setRParenLoc(SourceLocation R) { RParenLoc = R; } 1156c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 11578ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor TypeSourceInfo *getTypeSourceInfo() const { 11588ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor return TSInfo; 11598ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor } 11608ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor void setTypeSourceInfo(TypeSourceInfo *tsi) { 11618ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor TSInfo = tsi; 11628ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor } 1163c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 11648ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor const OffsetOfNode &getComponent(unsigned Idx) { 11658ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor assert(Idx < NumComps && "Subscript out of range"); 11668ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor return reinterpret_cast<OffsetOfNode *> (this + 1)[Idx]; 11678ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor } 11688ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor 11698ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor void setComponent(unsigned Idx, OffsetOfNode ON) { 11708ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor assert(Idx < NumComps && "Subscript out of range"); 11718ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor reinterpret_cast<OffsetOfNode *> (this + 1)[Idx] = ON; 11728ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor } 1173c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 11748ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor unsigned getNumComponents() const { 11758ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor return NumComps; 11768ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor } 11778ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor 11788ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor Expr* getIndexExpr(unsigned Idx) { 11798ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor assert(Idx < NumExprs && "Subscript out of range"); 11808ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor return reinterpret_cast<Expr **>( 11818ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor reinterpret_cast<OffsetOfNode *>(this+1) + NumComps)[Idx]; 11828ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor } 11838ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor 11848ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor void setIndexExpr(unsigned Idx, Expr* E) { 11858ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor assert(Idx < NumComps && "Subscript out of range"); 11868ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor reinterpret_cast<Expr **>( 11878ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor reinterpret_cast<OffsetOfNode *>(this+1) + NumComps)[Idx] = E; 11888ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor } 1189c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 11908ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor unsigned getNumExpressions() const { 11918ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor return NumExprs; 11928ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor } 11938ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor 11948ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor virtual SourceRange getSourceRange() const { 11958ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor return SourceRange(OperatorLoc, RParenLoc); 11968ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor } 11978ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor 11988ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor static bool classof(const Stmt *T) { 11998ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor return T->getStmtClass() == OffsetOfExprClass; 12008ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor } 12018ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor 12028ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor static bool classof(const OffsetOfExpr *) { return true; } 12038ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor 12048ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor // Iterators 12058ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor virtual child_iterator child_begin(); 12068ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor virtual child_iterator child_end(); 12078ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor}; 12088ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor 12090518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl/// SizeOfAlignOfExpr - [C99 6.5.3.4] - This is for sizeof/alignof, both of 12100518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl/// types and expressions. 12110518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redlclass SizeOfAlignOfExpr : public Expr { 12120518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl bool isSizeof : 1; // true if sizeof, false if alignof. 12130518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl bool isType : 1; // true if operand is a type, false if an expression 1214d457589fc69dc7a9c80cd74d317c0b81a35a27c9Sebastian Redl union { 1215a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall TypeSourceInfo *Ty; 1216d457589fc69dc7a9c80cd74d317c0b81a35a27c9Sebastian Redl Stmt *Ex; 1217d457589fc69dc7a9c80cd74d317c0b81a35a27c9Sebastian Redl } Argument; 12185f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation OpLoc, RParenLoc; 121942602bb40aefcc2751d4078ba88aacf4d965c9bdDouglas Gregor 122042602bb40aefcc2751d4078ba88aacf4d965c9bdDouglas Gregorprotected: 122142602bb40aefcc2751d4078ba88aacf4d965c9bdDouglas Gregor virtual void DoDestroy(ASTContext& C); 122242602bb40aefcc2751d4078ba88aacf4d965c9bdDouglas Gregor 12235f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 1224a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall SizeOfAlignOfExpr(bool issizeof, TypeSourceInfo *TInfo, 12250518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl QualType resultType, SourceLocation op, 12260518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl SourceLocation rp) : 12272850784bda09416fc7e9d57f5baa36c9351c757cSebastian Redl Expr(SizeOfAlignOfExprClass, resultType, 1228ba49817c5b9f502602672861cf369fd0e53966e8Douglas Gregor false, // Never type-dependent (C++ [temp.dep.expr]p3). 12292850784bda09416fc7e9d57f5baa36c9351c757cSebastian Redl // Value-dependent if the argument is type-dependent. 1230a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall TInfo->getType()->isDependentType()), 1231ba49817c5b9f502602672861cf369fd0e53966e8Douglas Gregor isSizeof(issizeof), isType(true), OpLoc(op), RParenLoc(rp) { 1232a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall Argument.Ty = TInfo; 1233ba49817c5b9f502602672861cf369fd0e53966e8Douglas Gregor } 1234ba49817c5b9f502602672861cf369fd0e53966e8Douglas Gregor 12351eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump SizeOfAlignOfExpr(bool issizeof, Expr *E, 1236ba49817c5b9f502602672861cf369fd0e53966e8Douglas Gregor QualType resultType, SourceLocation op, 1237ba49817c5b9f502602672861cf369fd0e53966e8Douglas Gregor SourceLocation rp) : 1238ba49817c5b9f502602672861cf369fd0e53966e8Douglas Gregor Expr(SizeOfAlignOfExprClass, resultType, 1239ba49817c5b9f502602672861cf369fd0e53966e8Douglas Gregor false, // Never type-dependent (C++ [temp.dep.expr]p3). 1240ba49817c5b9f502602672861cf369fd0e53966e8Douglas Gregor // Value-dependent if the argument is type-dependent. 1241ba49817c5b9f502602672861cf369fd0e53966e8Douglas Gregor E->isTypeDependent()), 1242ba49817c5b9f502602672861cf369fd0e53966e8Douglas Gregor isSizeof(issizeof), isType(false), OpLoc(op), RParenLoc(rp) { 1243ba49817c5b9f502602672861cf369fd0e53966e8Douglas Gregor Argument.Ex = E; 1244d457589fc69dc7a9c80cd74d317c0b81a35a27c9Sebastian Redl } 12450518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl 12460b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor /// \brief Construct an empty sizeof/alignof expression. 12470b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor explicit SizeOfAlignOfExpr(EmptyShell Empty) 12480b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor : Expr(SizeOfAlignOfExprClass, Empty) { } 12490b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor 12505f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool isSizeOf() const { return isSizeof; } 12510b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor void setSizeof(bool S) { isSizeof = S; } 12520b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor 12530518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl bool isArgumentType() const { return isType; } 12540518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl QualType getArgumentType() const { 12555ab75172051a6d2ea71a80a79e81c65519fd3462John McCall return getArgumentTypeInfo()->getType(); 12565ab75172051a6d2ea71a80a79e81c65519fd3462John McCall } 1257a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall TypeSourceInfo *getArgumentTypeInfo() const { 12580518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl assert(isArgumentType() && "calling getArgumentType() when arg is expr"); 12595ab75172051a6d2ea71a80a79e81c65519fd3462John McCall return Argument.Ty; 12600518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl } 1261caae7b099a0324b7c15dc89a9b70969d5d7ce996Chris Lattner Expr *getArgumentExpr() { 12620518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl assert(!isArgumentType() && "calling getArgumentExpr() when arg is type"); 1263d457589fc69dc7a9c80cd74d317c0b81a35a27c9Sebastian Redl return static_cast<Expr*>(Argument.Ex); 12640518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl } 1265caae7b099a0324b7c15dc89a9b70969d5d7ce996Chris Lattner const Expr *getArgumentExpr() const { 1266caae7b099a0324b7c15dc89a9b70969d5d7ce996Chris Lattner return const_cast<SizeOfAlignOfExpr*>(this)->getArgumentExpr(); 1267caae7b099a0324b7c15dc89a9b70969d5d7ce996Chris Lattner } 12680b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor 12690b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor void setArgument(Expr *E) { Argument.Ex = E; isType = false; } 1270a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall void setArgument(TypeSourceInfo *TInfo) { 1271a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall Argument.Ty = TInfo; 12721eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump isType = true; 12730b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor } 12740b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor 12750518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl /// Gets the argument type, or the type of the argument expression, whichever 12760518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl /// is appropriate. 12770518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl QualType getTypeOfArgument() const { 12780518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl return isArgumentType() ? getArgumentType() : getArgumentExpr()->getType(); 12790518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl } 12800518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl 128176e773a443be9f006610f46529e07d4c8d857680Chris Lattner SourceLocation getOperatorLoc() const { return OpLoc; } 12820b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor void setOperatorLoc(SourceLocation L) { OpLoc = L; } 12830b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor 12840b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor SourceLocation getRParenLoc() const { return RParenLoc; } 12850b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor void setRParenLoc(SourceLocation L) { RParenLoc = L; } 1286866b5c03e3b9c01cf496ad97b85a05afc917345bTed Kremenek 1287866b5c03e3b9c01cf496ad97b85a05afc917345bTed Kremenek virtual SourceRange getSourceRange() const { 1288866b5c03e3b9c01cf496ad97b85a05afc917345bTed Kremenek return SourceRange(OpLoc, RParenLoc); 1289866b5c03e3b9c01cf496ad97b85a05afc917345bTed Kremenek } 12905f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 12911eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 12921eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == SizeOfAlignOfExprClass; 12935f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 12940518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl static bool classof(const SizeOfAlignOfExpr *) { return true; } 12951eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 129677ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek // Iterators 129777ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_begin(); 129877ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_end(); 12995f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 13005f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 13015f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer//===----------------------------------------------------------------------===// 13025f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// Postfix Operators. 13035f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer//===----------------------------------------------------------------------===// 13045f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 13055f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// ArraySubscriptExpr - [C99 6.5.2.1] Array Subscripting. 13065f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass ArraySubscriptExpr : public Expr { 130777ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek enum { LHS, RHS, END_EXPR=2 }; 13081eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump Stmt* SubExprs[END_EXPR]; 13095f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation RBracketLoc; 13105f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 13112324512285caac0332bbbc6e4cab6245d2a370a1Ted Kremenek ArraySubscriptExpr(Expr *lhs, Expr *rhs, QualType t, 131273d0d4fac161ed12926e010dcf8b448a8de6a2ecChris Lattner SourceLocation rbracketloc) 13132850784bda09416fc7e9d57f5baa36c9351c757cSebastian Redl : Expr(ArraySubscriptExprClass, t, 13142850784bda09416fc7e9d57f5baa36c9351c757cSebastian Redl lhs->isTypeDependent() || rhs->isTypeDependent(), 13152850784bda09416fc7e9d57f5baa36c9351c757cSebastian Redl lhs->isValueDependent() || rhs->isValueDependent()), 13162850784bda09416fc7e9d57f5baa36c9351c757cSebastian Redl RBracketLoc(rbracketloc) { 131773d0d4fac161ed12926e010dcf8b448a8de6a2ecChris Lattner SubExprs[LHS] = lhs; 131873d0d4fac161ed12926e010dcf8b448a8de6a2ecChris Lattner SubExprs[RHS] = rhs; 131973d0d4fac161ed12926e010dcf8b448a8de6a2ecChris Lattner } 13201eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1321cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor /// \brief Create an empty array subscript expression. 1322cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor explicit ArraySubscriptExpr(EmptyShell Shell) 1323cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor : Expr(ArraySubscriptExprClass, Shell) { } 1324cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor 13252324512285caac0332bbbc6e4cab6245d2a370a1Ted Kremenek /// An array access can be written A[4] or 4[A] (both are equivalent). 13262324512285caac0332bbbc6e4cab6245d2a370a1Ted Kremenek /// - getBase() and getIdx() always present the normalized view: A[4]. 13272324512285caac0332bbbc6e4cab6245d2a370a1Ted Kremenek /// In this case getBase() returns "A" and getIdx() returns "4". 13282324512285caac0332bbbc6e4cab6245d2a370a1Ted Kremenek /// - getLHS() and getRHS() present the syntactic view. e.g. for 13292324512285caac0332bbbc6e4cab6245d2a370a1Ted Kremenek /// 4[A] getLHS() returns "4". 133033fd5c124aac15bab7cad95e4e0e7761356d2c06Christopher Lamb /// Note: Because vector element access is also written A[4] we must 133133fd5c124aac15bab7cad95e4e0e7761356d2c06Christopher Lamb /// predicate the format conversion in getBase and getIdx only on the 133233fd5c124aac15bab7cad95e4e0e7761356d2c06Christopher Lamb /// the type of the RHS, as it is possible for the LHS to be a vector of 133333fd5c124aac15bab7cad95e4e0e7761356d2c06Christopher Lamb /// integer type 13345549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getLHS() { return cast<Expr>(SubExprs[LHS]); } 13355549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek const Expr *getLHS() const { return cast<Expr>(SubExprs[LHS]); } 1336cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor void setLHS(Expr *E) { SubExprs[LHS] = E; } 1337cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor 13385549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getRHS() { return cast<Expr>(SubExprs[RHS]); } 13395549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek const Expr *getRHS() const { return cast<Expr>(SubExprs[RHS]); } 1340cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor void setRHS(Expr *E) { SubExprs[RHS] = E; } 13411eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 13421eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump Expr *getBase() { 13435549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek return cast<Expr>(getRHS()->getType()->isIntegerType() ? getLHS():getRHS()); 134477ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek } 13451eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 13461eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump const Expr *getBase() const { 13475549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek return cast<Expr>(getRHS()->getType()->isIntegerType() ? getLHS():getRHS()); 13482324512285caac0332bbbc6e4cab6245d2a370a1Ted Kremenek } 13491eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 13501eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump Expr *getIdx() { 13515549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek return cast<Expr>(getRHS()->getType()->isIntegerType() ? getRHS():getLHS()); 13522324512285caac0332bbbc6e4cab6245d2a370a1Ted Kremenek } 13531eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 135477ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek const Expr *getIdx() const { 13555549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek return cast<Expr>(getRHS()->getType()->isIntegerType() ? getRHS():getLHS()); 13561eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump } 13571eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 13581eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump virtual SourceRange getSourceRange() const { 135977ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek return SourceRange(getLHS()->getLocStart(), RBracketLoc); 13605f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 13611eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1362026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner SourceLocation getRBracketLoc() const { return RBracketLoc; } 1363cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor void setRBracketLoc(SourceLocation L) { RBracketLoc = L; } 1364cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor 13655cd9d6daf3acd4cc87fecebd81d9495b9e4ba9cdChris Lattner virtual SourceLocation getExprLoc() const { return getBase()->getExprLoc(); } 13665f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 13671eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 13681eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == ArraySubscriptExprClass; 13695f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 13705f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const ArraySubscriptExpr *) { return true; } 13711eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 137277ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek // Iterators 137377ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_begin(); 137477ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_end(); 13755f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 13765f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 13775f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1378b4609806e9232593ece09ce08b630836e825865cDouglas Gregor/// CallExpr - Represents a function call (C99 6.5.2.2, C++ [expr.call]). 13791eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// CallExpr itself represents a normal function call, e.g., "f(x, 2)", 1380b4609806e9232593ece09ce08b630836e825865cDouglas Gregor/// while its subclasses may represent alternative syntax that (semantically) 13811eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// results in a function call. For example, CXXOperatorCallExpr is 1382b4609806e9232593ece09ce08b630836e825865cDouglas Gregor/// a subclass for overloaded operator calls that use operator syntax, e.g., 1383b4609806e9232593ece09ce08b630836e825865cDouglas Gregor/// "str1 + str2" to resolve to a function call. 13845f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass CallExpr : public Expr { 138577ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek enum { FN=0, ARGS_START=1 }; 13865549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Stmt **SubExprs; 13875f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer unsigned NumArgs; 13885f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation RParenLoc; 13891eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1390b4609806e9232593ece09ce08b630836e825865cDouglas Gregorprotected: 1391b4609806e9232593ece09ce08b630836e825865cDouglas Gregor // This version of the constructor is for derived classes. 1392668bf91d31265b6ea8c3eb854ba450857701f269Ted Kremenek CallExpr(ASTContext& C, StmtClass SC, Expr *fn, Expr **args, unsigned numargs, 1393668bf91d31265b6ea8c3eb854ba450857701f269Ted Kremenek QualType t, SourceLocation rparenloc); 139442602bb40aefcc2751d4078ba88aacf4d965c9bdDouglas Gregor 139542602bb40aefcc2751d4078ba88aacf4d965c9bdDouglas Gregor virtual void DoDestroy(ASTContext& C); 13961eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 13975f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 13981eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump CallExpr(ASTContext& C, Expr *fn, Expr **args, unsigned numargs, QualType t, 13995f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation rparenloc); 14001eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 14011f0d0133b0e8d1f01f63951ee04927796b34740dDouglas Gregor /// \brief Build an empty call expression. 1402ba0a9006dbc4814e1e35f82812cb5a1dad65e8b8Argyrios Kyrtzidis CallExpr(ASTContext &C, StmtClass SC, EmptyShell Empty); 14031f0d0133b0e8d1f01f63951ee04927796b34740dDouglas Gregor 1404668bf91d31265b6ea8c3eb854ba450857701f269Ted Kremenek ~CallExpr() {} 14051eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 14065549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek const Expr *getCallee() const { return cast<Expr>(SubExprs[FN]); } 14075549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getCallee() { return cast<Expr>(SubExprs[FN]); } 140818b2515e1bf8c86a4900792692e42fe1296be28dChris Lattner void setCallee(Expr *F) { SubExprs[FN] = F; } 1409a00425414e8c209cabc25d1826b200aeb94259afZhongxing Xu 1410d20254f2875d0004c57ee766f258dbcee29f4841Nuno Lopes Decl *getCalleeDecl(); 1411d20254f2875d0004c57ee766f258dbcee29f4841Nuno Lopes const Decl *getCalleeDecl() const { 1412d20254f2875d0004c57ee766f258dbcee29f4841Nuno Lopes return const_cast<CallExpr*>(this)->getCalleeDecl(); 1413d20254f2875d0004c57ee766f258dbcee29f4841Nuno Lopes } 1414d20254f2875d0004c57ee766f258dbcee29f4841Nuno Lopes 1415a00425414e8c209cabc25d1826b200aeb94259afZhongxing Xu /// \brief If the callee is a FunctionDecl, return it. Otherwise return 0. 1416a00425414e8c209cabc25d1826b200aeb94259afZhongxing Xu FunctionDecl *getDirectCallee(); 1417bc8d42c6f1565c0b2f93ad524edebfd7a4e6cac6Chris Lattner const FunctionDecl *getDirectCallee() const { 1418bc8d42c6f1565c0b2f93ad524edebfd7a4e6cac6Chris Lattner return const_cast<CallExpr*>(this)->getDirectCallee(); 1419bc8d42c6f1565c0b2f93ad524edebfd7a4e6cac6Chris Lattner } 1420a00425414e8c209cabc25d1826b200aeb94259afZhongxing Xu 14215f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// getNumArgs - Return the number of actual arguments to this call. 14225f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// 14235f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer unsigned getNumArgs() const { return NumArgs; } 14241eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 14255f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// getArg - Return the specified argument. 14265f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Expr *getArg(unsigned Arg) { 14275f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer assert(Arg < NumArgs && "Arg access out of range!"); 14285549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek return cast<Expr>(SubExprs[Arg+ARGS_START]); 14295f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 14305f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer const Expr *getArg(unsigned Arg) const { 14315f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer assert(Arg < NumArgs && "Arg access out of range!"); 14325549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek return cast<Expr>(SubExprs[Arg+ARGS_START]); 14335f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 14341eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1435934f276cc5b45e19cd12ebb2d04fd7972a23865cSteve Naroff /// setArg - Set the specified argument. 1436934f276cc5b45e19cd12ebb2d04fd7972a23865cSteve Naroff void setArg(unsigned Arg, Expr *ArgExpr) { 1437934f276cc5b45e19cd12ebb2d04fd7972a23865cSteve Naroff assert(Arg < NumArgs && "Arg access out of range!"); 1438934f276cc5b45e19cd12ebb2d04fd7972a23865cSteve Naroff SubExprs[Arg+ARGS_START] = ArgExpr; 1439934f276cc5b45e19cd12ebb2d04fd7972a23865cSteve Naroff } 14401eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1441d18b3299debb7b0dbd9d34d9369189dc98c87f53Chris Lattner /// setNumArgs - This changes the number of arguments present in this call. 1442d18b3299debb7b0dbd9d34d9369189dc98c87f53Chris Lattner /// Any orphaned expressions are deleted by this, and any new operands are set 1443d18b3299debb7b0dbd9d34d9369189dc98c87f53Chris Lattner /// to null. 14448189cde56b4f6f938cd65f53c932fe1860d0204cTed Kremenek void setNumArgs(ASTContext& C, unsigned NumArgs); 14451eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 14465549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek typedef ExprIterator arg_iterator; 14475549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek typedef ConstExprIterator const_arg_iterator; 14481eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1449d18b3299debb7b0dbd9d34d9369189dc98c87f53Chris Lattner arg_iterator arg_begin() { return SubExprs+ARGS_START; } 1450d18b3299debb7b0dbd9d34d9369189dc98c87f53Chris Lattner arg_iterator arg_end() { return SubExprs+ARGS_START+getNumArgs(); } 14515549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek const_arg_iterator arg_begin() const { return SubExprs+ARGS_START; } 14525549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek const_arg_iterator arg_end() const { return SubExprs+ARGS_START+getNumArgs();} 14531eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 14545f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// getNumCommas - Return the number of commas that must have been present in 14555f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// this function call. 14565f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer unsigned getNumCommas() const { return NumArgs ? NumArgs - 1 : 0; } 14575f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1458cb888967400a03504c88acedd5248d6778a82f46Chris Lattner /// isBuiltinCall - If this is a call to a builtin, return the builtin ID. If 1459cb888967400a03504c88acedd5248d6778a82f46Chris Lattner /// not, return 0. 14603c385e5f8d9008fff18597ca302be19fa86e51f6Douglas Gregor unsigned isBuiltinCall(ASTContext &Context) const; 14611eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 14621eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /// getCallReturnType - Get the return type of the call expr. This is not 14631eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /// always the type of the expr itself, if the return type is a reference 14646dde78f744382a5627a04f984a97049e0c4b5e73Anders Carlsson /// type. 14656dde78f744382a5627a04f984a97049e0c4b5e73Anders Carlsson QualType getCallReturnType() const; 14661eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1467d18b3299debb7b0dbd9d34d9369189dc98c87f53Chris Lattner SourceLocation getRParenLoc() const { return RParenLoc; } 14681f0d0133b0e8d1f01f63951ee04927796b34740dDouglas Gregor void setRParenLoc(SourceLocation L) { RParenLoc = L; } 1469866b5c03e3b9c01cf496ad97b85a05afc917345bTed Kremenek 14701eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump virtual SourceRange getSourceRange() const { 147177ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek return SourceRange(getCallee()->getLocStart(), RParenLoc); 14725f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 14731eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 14741eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 14754bfe1968410ea8ffe3b4f629addd7c4bcf484765Sean Hunt return T->getStmtClass() >= firstCallExprConstant && 14764bfe1968410ea8ffe3b4f629addd7c4bcf484765Sean Hunt T->getStmtClass() <= lastCallExprConstant; 14775f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 14785f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const CallExpr *) { return true; } 147988a3514f36de96b19cdf50141c640df1a5f13f6cDouglas Gregor 148077ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek // Iterators 148177ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_begin(); 148277ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_end(); 14835f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 14845f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1485ddca44e86281bb7dcf5fdcaf1563434c524e3861Chris Lattner/// MemberExpr - [C99 6.5.2.3] Structure and Union Members. X->F and X.F. 14865f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 14875f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass MemberExpr : public Expr { 14886bb8017bb9e828d118e15e59d71c66bba323c364John McCall /// Extra data stored in some member expressions. 14896bb8017bb9e828d118e15e59d71c66bba323c364John McCall struct MemberNameQualifier : public NameQualifier { 1490161755a09898c95d21bfff33707da9ca41cd53c5John McCall DeclAccessPair FoundDecl; 14916bb8017bb9e828d118e15e59d71c66bba323c364John McCall }; 14926bb8017bb9e828d118e15e59d71c66bba323c364John McCall 1493ddca44e86281bb7dcf5fdcaf1563434c524e3861Chris Lattner /// Base - the expression for the base pointer or structure references. In 1494ddca44e86281bb7dcf5fdcaf1563434c524e3861Chris Lattner /// X.F, this is "X". 14955549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Stmt *Base; 14961eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1497ddca44e86281bb7dcf5fdcaf1563434c524e3861Chris Lattner /// MemberDecl - This is the decl being referenced by the field/member name. 1498ddca44e86281bb7dcf5fdcaf1563434c524e3861Chris Lattner /// In X.F, this is the decl referenced by F. 1499f595cc41c4d95fe323f8a2b209523de9956f874dEli Friedman ValueDecl *MemberDecl; 15001eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1501ddca44e86281bb7dcf5fdcaf1563434c524e3861Chris Lattner /// MemberLoc - This is the location of the member name. 15025f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation MemberLoc; 15031eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1504ddca44e86281bb7dcf5fdcaf1563434c524e3861Chris Lattner /// IsArrow - True if this is "X->F", false if this is "X.F". 150583f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor bool IsArrow : 1; 15061eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 150783f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor /// \brief True if this member expression used a nested-name-specifier to 15086bb8017bb9e828d118e15e59d71c66bba323c364John McCall /// refer to the member, e.g., "x->Base::f", or found its member via a using 15096bb8017bb9e828d118e15e59d71c66bba323c364John McCall /// declaration. When true, a MemberNameQualifier 1510c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor /// structure is allocated immediately after the MemberExpr. 15116bb8017bb9e828d118e15e59d71c66bba323c364John McCall bool HasQualifierOrFoundDecl : 1; 15121eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1513c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor /// \brief True if this member expression specified a template argument list 1514c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor /// explicitly, e.g., x->f<int>. When true, an ExplicitTemplateArgumentList 1515c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor /// structure (and its TemplateArguments) are allocated immediately after 1516c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor /// the MemberExpr or, if the member expression also has a qualifier, after 15176bb8017bb9e828d118e15e59d71c66bba323c364John McCall /// the MemberNameQualifier structure. 1518c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor bool HasExplicitTemplateArgumentList : 1; 15191eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 152083f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor /// \brief Retrieve the qualifier that preceded the member name, if any. 15216bb8017bb9e828d118e15e59d71c66bba323c364John McCall MemberNameQualifier *getMemberQualifier() { 15226bb8017bb9e828d118e15e59d71c66bba323c364John McCall assert(HasQualifierOrFoundDecl); 15236bb8017bb9e828d118e15e59d71c66bba323c364John McCall return reinterpret_cast<MemberNameQualifier *> (this + 1); 152483f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor } 152583f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor 152683f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor /// \brief Retrieve the qualifier that preceded the member name, if any. 15276bb8017bb9e828d118e15e59d71c66bba323c364John McCall const MemberNameQualifier *getMemberQualifier() const { 1528c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor return const_cast<MemberExpr *>(this)->getMemberQualifier(); 1529c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor } 15301eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1531c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor /// \brief Retrieve the explicit template argument list that followed the 1532c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor /// member template name, if any. 1533c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor ExplicitTemplateArgumentList *getExplicitTemplateArgumentList() { 1534c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor if (!HasExplicitTemplateArgumentList) 153583f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor return 0; 15361eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 15376bb8017bb9e828d118e15e59d71c66bba323c364John McCall if (!HasQualifierOrFoundDecl) 1538c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor return reinterpret_cast<ExplicitTemplateArgumentList *>(this + 1); 15391eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1540c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor return reinterpret_cast<ExplicitTemplateArgumentList *>( 1541c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor getMemberQualifier() + 1); 1542c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor } 15431eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1544c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor /// \brief Retrieve the explicit template argument list that followed the 1545c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor /// member template name, if any. 1546c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor const ExplicitTemplateArgumentList *getExplicitTemplateArgumentList() const { 1547c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor return const_cast<MemberExpr *>(this)->getExplicitTemplateArgumentList(); 154883f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor } 15491eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 15505f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 1551f595cc41c4d95fe323f8a2b209523de9956f874dEli Friedman MemberExpr(Expr *base, bool isarrow, ValueDecl *memberdecl, 1552f595cc41c4d95fe323f8a2b209523de9956f874dEli Friedman SourceLocation l, QualType ty) 15531eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump : Expr(MemberExprClass, ty, 1554ffce2df6ae280d354d51371282a579df1eb86876Anders Carlsson base->isTypeDependent(), base->isValueDependent()), 155583f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor Base(base), MemberDecl(memberdecl), MemberLoc(l), IsArrow(isarrow), 15566bb8017bb9e828d118e15e59d71c66bba323c364John McCall HasQualifierOrFoundDecl(false), HasExplicitTemplateArgumentList(false) {} 1557510190777c4bd53e960eea4665b204778fec1b64Eli Friedman 15581f0d0133b0e8d1f01f63951ee04927796b34740dDouglas Gregor /// \brief Build an empty member reference expression. 15591eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump explicit MemberExpr(EmptyShell Empty) 15606bb8017bb9e828d118e15e59d71c66bba323c364John McCall : Expr(MemberExprClass, Empty), HasQualifierOrFoundDecl(false), 1561e6585a7d71510be00a625686153f48d496d3bbf1Douglas Gregor HasExplicitTemplateArgumentList(false) { } 15621f0d0133b0e8d1f01f63951ee04927796b34740dDouglas Gregor 15631eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static MemberExpr *Create(ASTContext &C, Expr *base, bool isarrow, 156483f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor NestedNameSpecifier *qual, SourceRange qualrange, 1565161755a09898c95d21bfff33707da9ca41cd53c5John McCall ValueDecl *memberdecl, DeclAccessPair founddecl, 1566c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor SourceLocation l, 1567d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall const TemplateArgumentListInfo *targs, 1568c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor QualType ty); 15691eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 157088a3514f36de96b19cdf50141c640df1a5f13f6cDouglas Gregor void setBase(Expr *E) { Base = E; } 15715549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getBase() const { return cast<Expr>(Base); } 157257e8b05fe9ba03d410db9c161e032cb79c9ab5baDouglas Gregor 157357e8b05fe9ba03d410db9c161e032cb79c9ab5baDouglas Gregor /// \brief Retrieve the member declaration to which this expression refers. 157457e8b05fe9ba03d410db9c161e032cb79c9ab5baDouglas Gregor /// 157557e8b05fe9ba03d410db9c161e032cb79c9ab5baDouglas Gregor /// The returned declaration will either be a FieldDecl or (in C++) 157657e8b05fe9ba03d410db9c161e032cb79c9ab5baDouglas Gregor /// a CXXMethodDecl. 1577f595cc41c4d95fe323f8a2b209523de9956f874dEli Friedman ValueDecl *getMemberDecl() const { return MemberDecl; } 1578f595cc41c4d95fe323f8a2b209523de9956f874dEli Friedman void setMemberDecl(ValueDecl *D) { MemberDecl = D; } 15791f0d0133b0e8d1f01f63951ee04927796b34740dDouglas Gregor 15806bb8017bb9e828d118e15e59d71c66bba323c364John McCall /// \brief Retrieves the declaration found by lookup. 1581161755a09898c95d21bfff33707da9ca41cd53c5John McCall DeclAccessPair getFoundDecl() const { 15826bb8017bb9e828d118e15e59d71c66bba323c364John McCall if (!HasQualifierOrFoundDecl) 1583161755a09898c95d21bfff33707da9ca41cd53c5John McCall return DeclAccessPair::make(getMemberDecl(), 1584161755a09898c95d21bfff33707da9ca41cd53c5John McCall getMemberDecl()->getAccess()); 15856bb8017bb9e828d118e15e59d71c66bba323c364John McCall return getMemberQualifier()->FoundDecl; 15866bb8017bb9e828d118e15e59d71c66bba323c364John McCall } 15876bb8017bb9e828d118e15e59d71c66bba323c364John McCall 15881eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /// \brief Determines whether this member expression actually had 15890979c805475d1ba49b5d6ef93c4d2ce6d2eab6edDouglas Gregor /// a C++ nested-name-specifier prior to the name of the member, e.g., 15900979c805475d1ba49b5d6ef93c4d2ce6d2eab6edDouglas Gregor /// x->Base::foo. 15916bb8017bb9e828d118e15e59d71c66bba323c364John McCall bool hasQualifier() const { return getQualifier() != 0; } 15921eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 159383f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor /// \brief If the member name was qualified, retrieves the source range of 159483f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor /// the nested-name-specifier that precedes the member name. Otherwise, 159583f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor /// returns an empty source range. 15961eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump SourceRange getQualifierRange() const { 15976bb8017bb9e828d118e15e59d71c66bba323c364John McCall if (!HasQualifierOrFoundDecl) 159883f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor return SourceRange(); 15991eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 160083f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor return getMemberQualifier()->Range; 160183f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor } 16021eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 16031eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /// \brief If the member name was qualified, retrieves the 160483f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor /// nested-name-specifier that precedes the member name. Otherwise, returns 160583f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor /// NULL. 16061eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump NestedNameSpecifier *getQualifier() const { 16076bb8017bb9e828d118e15e59d71c66bba323c364John McCall if (!HasQualifierOrFoundDecl) 160883f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor return 0; 16091eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 161083f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor return getMemberQualifier()->NNS; 161183f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor } 1612c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor 1613c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor /// \brief Determines whether this member expression actually had a C++ 1614c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor /// template argument list explicitly specified, e.g., x.f<int>. 1615d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall bool hasExplicitTemplateArgumentList() const { 16161eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return HasExplicitTemplateArgumentList; 1617c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor } 16181eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1619d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall /// \brief Copies the template arguments (if present) into the given 1620d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall /// structure. 1621d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall void copyTemplateArgumentsInto(TemplateArgumentListInfo &List) const { 1622d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall if (hasExplicitTemplateArgumentList()) 1623d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall getExplicitTemplateArgumentList()->copyInto(List); 1624d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall } 1625c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 16261eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /// \brief Retrieve the location of the left angle bracket following the 1627c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor /// member name ('<'), if any. 16281eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump SourceLocation getLAngleLoc() const { 1629c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor if (!HasExplicitTemplateArgumentList) 1630c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor return SourceLocation(); 16311eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1632c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor return getExplicitTemplateArgumentList()->LAngleLoc; 1633c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor } 16341eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1635c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor /// \brief Retrieve the template arguments provided as part of this 1636c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor /// template-id. 1637833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall const TemplateArgumentLoc *getTemplateArgs() const { 1638c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor if (!HasExplicitTemplateArgumentList) 16391eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return 0; 16401eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1641c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor return getExplicitTemplateArgumentList()->getTemplateArgs(); 1642c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor } 16431eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1644c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor /// \brief Retrieve the number of template arguments provided as part of this 1645c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor /// template-id. 16461eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump unsigned getNumTemplateArgs() const { 1647c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor if (!HasExplicitTemplateArgumentList) 16481eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return 0; 16491eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1650c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor return getExplicitTemplateArgumentList()->NumTemplateArgs; 1651c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor } 16521eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 16531eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /// \brief Retrieve the location of the right angle bracket following the 1654c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor /// template arguments ('>'). 16551eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump SourceLocation getRAngleLoc() const { 1656c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor if (!HasExplicitTemplateArgumentList) 1657c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor return SourceLocation(); 16581eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1659c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor return getExplicitTemplateArgumentList()->RAngleLoc; 1660c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor } 16611eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 16625f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool isArrow() const { return IsArrow; } 16631f0d0133b0e8d1f01f63951ee04927796b34740dDouglas Gregor void setArrow(bool A) { IsArrow = A; } 16641f0d0133b0e8d1f01f63951ee04927796b34740dDouglas Gregor 1665ddca44e86281bb7dcf5fdcaf1563434c524e3861Chris Lattner /// getMemberLoc - Return the location of the "member", in X->F, it is the 1666ddca44e86281bb7dcf5fdcaf1563434c524e3861Chris Lattner /// location of 'F'. 1667026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner SourceLocation getMemberLoc() const { return MemberLoc; } 16681f0d0133b0e8d1f01f63951ee04927796b34740dDouglas Gregor void setMemberLoc(SourceLocation L) { MemberLoc = L; } 16695f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 16705f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer virtual SourceRange getSourceRange() const { 167172527137c521ad9330ecb81ccd841159719dc8cdEli Friedman // If we have an implicit base (like a C++ implicit this), 167272527137c521ad9330ecb81ccd841159719dc8cdEli Friedman // make sure not to return its location 1673c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor SourceLocation EndLoc = MemberLoc; 1674c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor if (HasExplicitTemplateArgumentList) 1675c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor EndLoc = getRAngleLoc(); 16761eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 167772527137c521ad9330ecb81ccd841159719dc8cdEli Friedman SourceLocation BaseLoc = getBase()->getLocStart(); 167872527137c521ad9330ecb81ccd841159719dc8cdEli Friedman if (BaseLoc.isInvalid()) 1679c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor return SourceRange(MemberLoc, EndLoc); 1680c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor return SourceRange(BaseLoc, EndLoc); 16815f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 16821eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 16835f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer virtual SourceLocation getExprLoc() const { return MemberLoc; } 16845f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 16851eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 168683f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor return T->getStmtClass() == MemberExprClass; 16875f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 16885f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const MemberExpr *) { return true; } 16891eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 16901237c673c07f9d827129ba02720108816abde562Ted Kremenek // Iterators 16911237c673c07f9d827129ba02720108816abde562Ted Kremenek virtual child_iterator child_begin(); 16921237c673c07f9d827129ba02720108816abde562Ted Kremenek virtual child_iterator child_end(); 16935f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 16945f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 16951eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// CompoundLiteralExpr - [C99 6.5.2.5] 1696aff1edd84aaafef15b737acd8ec61abcca6d6bc3Steve Naroff/// 1697aff1edd84aaafef15b737acd8ec61abcca6d6bc3Steve Naroffclass CompoundLiteralExpr : public Expr { 16980fc53dfc7a33f68e71ef245389c4e7cd34a62a39Chris Lattner /// LParenLoc - If non-null, this is the location of the left paren in a 16990fc53dfc7a33f68e71ef245389c4e7cd34a62a39Chris Lattner /// compound literal like "(int){4}". This can be null if this is a 17000fc53dfc7a33f68e71ef245389c4e7cd34a62a39Chris Lattner /// synthesized compound expression. 17010fc53dfc7a33f68e71ef245389c4e7cd34a62a39Chris Lattner SourceLocation LParenLoc; 17021d7d8d66eff7ed0f3e957d330930cc9ab8047addJohn McCall 17031d7d8d66eff7ed0f3e957d330930cc9ab8047addJohn McCall /// The type as written. This can be an incomplete array type, in 17041d7d8d66eff7ed0f3e957d330930cc9ab8047addJohn McCall /// which case the actual expression type will be different. 170542f56b50062cd3b3c6b23fdb9053578ae9145664John McCall TypeSourceInfo *TInfo; 17065549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Stmt *Init; 1707e9b12198c4cc7f5687960100351b4af006c14469Steve Naroff bool FileScope; 1708aff1edd84aaafef15b737acd8ec61abcca6d6bc3Steve Naroffpublic: 17092333f7727f97018d6742e1e0938133bcfad967abEli Friedman // FIXME: Can compound literals be value-dependent? 171042f56b50062cd3b3c6b23fdb9053578ae9145664John McCall CompoundLiteralExpr(SourceLocation lparenloc, TypeSourceInfo *tinfo, 17111d7d8d66eff7ed0f3e957d330930cc9ab8047addJohn McCall QualType T, Expr *init, bool fileScope) 17121d7d8d66eff7ed0f3e957d330930cc9ab8047addJohn McCall : Expr(CompoundLiteralExprClass, T, 171342f56b50062cd3b3c6b23fdb9053578ae9145664John McCall tinfo->getType()->isDependentType(), false), 171442f56b50062cd3b3c6b23fdb9053578ae9145664John McCall LParenLoc(lparenloc), TInfo(tinfo), Init(init), FileScope(fileScope) {} 17151eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1716ba6d7e7fa5f79959d3eef39adb5620d845ba5198Douglas Gregor /// \brief Construct an empty compound literal. 1717ba6d7e7fa5f79959d3eef39adb5620d845ba5198Douglas Gregor explicit CompoundLiteralExpr(EmptyShell Empty) 1718ba6d7e7fa5f79959d3eef39adb5620d845ba5198Douglas Gregor : Expr(CompoundLiteralExprClass, Empty) { } 1719ba6d7e7fa5f79959d3eef39adb5620d845ba5198Douglas Gregor 17205549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek const Expr *getInitializer() const { return cast<Expr>(Init); } 17215549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getInitializer() { return cast<Expr>(Init); } 1722ba6d7e7fa5f79959d3eef39adb5620d845ba5198Douglas Gregor void setInitializer(Expr *E) { Init = E; } 1723e9b12198c4cc7f5687960100351b4af006c14469Steve Naroff 1724e9b12198c4cc7f5687960100351b4af006c14469Steve Naroff bool isFileScope() const { return FileScope; } 1725ba6d7e7fa5f79959d3eef39adb5620d845ba5198Douglas Gregor void setFileScope(bool FS) { FileScope = FS; } 1726ba6d7e7fa5f79959d3eef39adb5620d845ba5198Douglas Gregor 17270fc53dfc7a33f68e71ef245389c4e7cd34a62a39Chris Lattner SourceLocation getLParenLoc() const { return LParenLoc; } 1728ba6d7e7fa5f79959d3eef39adb5620d845ba5198Douglas Gregor void setLParenLoc(SourceLocation L) { LParenLoc = L; } 1729ba6d7e7fa5f79959d3eef39adb5620d845ba5198Douglas Gregor 173042f56b50062cd3b3c6b23fdb9053578ae9145664John McCall TypeSourceInfo *getTypeSourceInfo() const { return TInfo; } 173142f56b50062cd3b3c6b23fdb9053578ae9145664John McCall void setTypeSourceInfo(TypeSourceInfo* tinfo) { TInfo = tinfo; } 173242f56b50062cd3b3c6b23fdb9053578ae9145664John McCall 173373d0d4fac161ed12926e010dcf8b448a8de6a2ecChris Lattner virtual SourceRange getSourceRange() const { 17340fc53dfc7a33f68e71ef245389c4e7cd34a62a39Chris Lattner // FIXME: Init should never be null. 17350fc53dfc7a33f68e71ef245389c4e7cd34a62a39Chris Lattner if (!Init) 17360fc53dfc7a33f68e71ef245389c4e7cd34a62a39Chris Lattner return SourceRange(); 17370fc53dfc7a33f68e71ef245389c4e7cd34a62a39Chris Lattner if (LParenLoc.isInvalid()) 173873d0d4fac161ed12926e010dcf8b448a8de6a2ecChris Lattner return Init->getSourceRange(); 17390fc53dfc7a33f68e71ef245389c4e7cd34a62a39Chris Lattner return SourceRange(LParenLoc, Init->getLocEnd()); 174073d0d4fac161ed12926e010dcf8b448a8de6a2ecChris Lattner } 1741aff1edd84aaafef15b737acd8ec61abcca6d6bc3Steve Naroff 17421eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 17431eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == CompoundLiteralExprClass; 1744aff1edd84aaafef15b737acd8ec61abcca6d6bc3Steve Naroff } 1745aff1edd84aaafef15b737acd8ec61abcca6d6bc3Steve Naroff static bool classof(const CompoundLiteralExpr *) { return true; } 17461eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 17471237c673c07f9d827129ba02720108816abde562Ted Kremenek // Iterators 17481237c673c07f9d827129ba02720108816abde562Ted Kremenek virtual child_iterator child_begin(); 17491237c673c07f9d827129ba02720108816abde562Ted Kremenek virtual child_iterator child_end(); 1750aff1edd84aaafef15b737acd8ec61abcca6d6bc3Steve Naroff}; 1751aff1edd84aaafef15b737acd8ec61abcca6d6bc3Steve Naroff 175249badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// CastExpr - Base class for type casts, including both implicit 175349badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// casts (ImplicitCastExpr) and explicit casts that have some 175449badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// representation in the source code (ExplicitCastExpr's derived 175549badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// classes). 17560835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidisclass CastExpr : public Expr { 1757cdef2b75aa60cde1ca00e0aa3f89139ac89c6ae4Anders Carlssonpublic: 1758cdef2b75aa60cde1ca00e0aa3f89139ac89c6ae4Anders Carlsson /// CastKind - the kind of cast this represents. 1759cdef2b75aa60cde1ca00e0aa3f89139ac89c6ae4Anders Carlsson enum CastKind { 1760cdef2b75aa60cde1ca00e0aa3f89139ac89c6ae4Anders Carlsson /// CK_Unknown - Unknown cast kind. 17611eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /// FIXME: The goal is to get rid of this and make all casts have a 1762cdef2b75aa60cde1ca00e0aa3f89139ac89c6ae4Anders Carlsson /// kind so that the AST client doesn't have to try to figure out what's 1763cdef2b75aa60cde1ca00e0aa3f89139ac89c6ae4Anders Carlsson /// going on. 1764cdef2b75aa60cde1ca00e0aa3f89139ac89c6ae4Anders Carlsson CK_Unknown, 17651eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1766cdef2b75aa60cde1ca00e0aa3f89139ac89c6ae4Anders Carlsson /// CK_BitCast - Used for reinterpret_cast. 1767cdef2b75aa60cde1ca00e0aa3f89139ac89c6ae4Anders Carlsson CK_BitCast, 17681eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1769cdef2b75aa60cde1ca00e0aa3f89139ac89c6ae4Anders Carlsson /// CK_NoOp - Used for const_cast. 17703503d041ca8a3535a1c1a30005a6b18ae7aed5dbAnders Carlsson CK_NoOp, 17711eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 177211de6de25a0110cd7be97eef761ef3b189781da6Anders Carlsson /// CK_BaseToDerived - Base to derived class casts. 177311de6de25a0110cd7be97eef761ef3b189781da6Anders Carlsson CK_BaseToDerived, 177411de6de25a0110cd7be97eef761ef3b189781da6Anders Carlsson 17753503d041ca8a3535a1c1a30005a6b18ae7aed5dbAnders Carlsson /// CK_DerivedToBase - Derived to base class casts. 1776714179b179a31a0c3769a968ee18ba87b901b13fAnders Carlsson CK_DerivedToBase, 17771eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 177823cba801e11b03929c44f8cf54578305963a3476John McCall /// CK_UncheckedDerivedToBase - Derived to base class casts that 177923cba801e11b03929c44f8cf54578305963a3476John McCall /// assume that the derived pointer is not null. 178023cba801e11b03929c44f8cf54578305963a3476John McCall CK_UncheckedDerivedToBase, 178123cba801e11b03929c44f8cf54578305963a3476John McCall 1782714179b179a31a0c3769a968ee18ba87b901b13fAnders Carlsson /// CK_Dynamic - Dynamic cast. 17834d8673b645ad86e496b886a0f80b60763f67071dAnders Carlsson CK_Dynamic, 17841eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 17854d8673b645ad86e496b886a0f80b60763f67071dAnders Carlsson /// CK_ToUnion - Cast to union (GCC extension). 1786112a0a8ddf23f6d25e0920002d5d4c1df0515f86Anders Carlsson CK_ToUnion, 17871eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1788112a0a8ddf23f6d25e0920002d5d4c1df0515f86Anders Carlsson /// CK_ArrayToPointerDecay - Array to pointer decay. 178927a5b9b9babd1e4f8a19c5c9c0736c4b311c79b2Anders Carlsson CK_ArrayToPointerDecay, 17901eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1791b633c4ee622df81d4572ef57dac54ebed69bb9bfAnders Carlsson // CK_FunctionToPointerDecay - Function to pointer decay. 1792b633c4ee622df81d4572ef57dac54ebed69bb9bfAnders Carlsson CK_FunctionToPointerDecay, 17931eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 179427a5b9b9babd1e4f8a19c5c9c0736c4b311c79b2Anders Carlsson /// CK_NullToMemberPointer - Null pointer to member pointer. 179527a5b9b9babd1e4f8a19c5c9c0736c4b311c79b2Anders Carlsson CK_NullToMemberPointer, 17961eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 179727a5b9b9babd1e4f8a19c5c9c0736c4b311c79b2Anders Carlsson /// CK_BaseToDerivedMemberPointer - Member pointer in base class to 179827a5b9b9babd1e4f8a19c5c9c0736c4b311c79b2Anders Carlsson /// member pointer in derived class. 17999099ff0cf91ac9e0b2d5a142807fa384ce842fc4Fariborz Jahanian CK_BaseToDerivedMemberPointer, 18009099ff0cf91ac9e0b2d5a142807fa384ce842fc4Fariborz Jahanian 18011a31a18db9d657751f38c724adc0d62e86852bd7Anders Carlsson /// CK_DerivedToBaseMemberPointer - Member pointer in derived class to 18021a31a18db9d657751f38c724adc0d62e86852bd7Anders Carlsson /// member pointer in base class. 18031a31a18db9d657751f38c724adc0d62e86852bd7Anders Carlsson CK_DerivedToBaseMemberPointer, 1804c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 18051eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /// CK_UserDefinedConversion - Conversion using a user defined type 180658d3f1af9b4efa426826816a16894986b78b2692Fariborz Jahanian /// conversion function. 18077fe5d72fbc8605b60d42d32394248ea76cf763a0Fariborz Jahanian CK_UserDefinedConversion, 18087fe5d72fbc8605b60d42d32394248ea76cf763a0Fariborz Jahanian 18097fe5d72fbc8605b60d42d32394248ea76cf763a0Fariborz Jahanian /// CK_ConstructorConversion - Conversion by constructor 18107f9e646b7ed47bc8e9a60031ad0c2b55031e2077Anders Carlsson CK_ConstructorConversion, 1811c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 18127f9e646b7ed47bc8e9a60031ad0c2b55031e2077Anders Carlsson /// CK_IntegralToPointer - Integral to pointer 18137f9e646b7ed47bc8e9a60031ad0c2b55031e2077Anders Carlsson CK_IntegralToPointer, 1814c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 18157f9e646b7ed47bc8e9a60031ad0c2b55031e2077Anders Carlsson /// CK_PointerToIntegral - Pointer to integral 1816ebeaf2031c968143c531bfe232d7507f20c57347Anders Carlsson CK_PointerToIntegral, 1817c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 1818ebeaf2031c968143c531bfe232d7507f20c57347Anders Carlsson /// CK_ToVoid - Cast to void. 181916a8904f3f5ed19158657e1da95e5902fbee66f7Anders Carlsson CK_ToVoid, 1820c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 182116a8904f3f5ed19158657e1da95e5902fbee66f7Anders Carlsson /// CK_VectorSplat - Casting from an integer/floating type to an extended 1822c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt /// vector type with the same element type as the src type. Splats the 1823f67cea84bac1d3417f0baaf1fcbc86ee126e2d87Anders Carlsson /// src expression into the destination expression. 182482debc7d282e723e58d183bfa89ddc2500a8daafAnders Carlsson CK_VectorSplat, 1825c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 182682debc7d282e723e58d183bfa89ddc2500a8daafAnders Carlsson /// CK_IntegralCast - Casting between integral types of different size. 182782debc7d282e723e58d183bfa89ddc2500a8daafAnders Carlsson CK_IntegralCast, 182882debc7d282e723e58d183bfa89ddc2500a8daafAnders Carlsson 182982debc7d282e723e58d183bfa89ddc2500a8daafAnders Carlsson /// CK_IntegralToFloating - Integral to floating point. 183082debc7d282e723e58d183bfa89ddc2500a8daafAnders Carlsson CK_IntegralToFloating, 1831c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 183282debc7d282e723e58d183bfa89ddc2500a8daafAnders Carlsson /// CK_FloatingToIntegral - Floating point to integral. 183382debc7d282e723e58d183bfa89ddc2500a8daafAnders Carlsson CK_FloatingToIntegral, 1834c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 183582debc7d282e723e58d183bfa89ddc2500a8daafAnders Carlsson /// CK_FloatingCast - Casting between floating types of different size. 1836bc0e0781da778bd5eb41a810419912893ae20448Anders Carlsson CK_FloatingCast, 1837c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 1838bc0e0781da778bd5eb41a810419912893ae20448Anders Carlsson /// CK_MemberPointerToBoolean - Member pointer to boolean 183992ef5d75720c032808181133e4d7c5f82230237eFariborz Jahanian CK_MemberPointerToBoolean, 184092ef5d75720c032808181133e4d7c5f82230237eFariborz Jahanian 1841c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt /// CK_AnyPointerToObjCPointerCast - Casting any pointer to objective-c 184292ef5d75720c032808181133e4d7c5f82230237eFariborz Jahanian /// pointer 18433b27f1a80e4e433b503efd344c909eeafaa9033cFariborz Jahanian CK_AnyPointerToObjCPointerCast, 1844c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt /// CK_AnyPointerToBlockPointerCast - Casting any pointer to block 18453b27f1a80e4e433b503efd344c909eeafaa9033cFariborz Jahanian /// pointer 18463b27f1a80e4e433b503efd344c909eeafaa9033cFariborz Jahanian CK_AnyPointerToBlockPointerCast 1847bc0e0781da778bd5eb41a810419912893ae20448Anders Carlsson 1848cdef2b75aa60cde1ca00e0aa3f89139ac89c6ae4Anders Carlsson }; 18491eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1850cdef2b75aa60cde1ca00e0aa3f89139ac89c6ae4Anders Carlssonprivate: 1851cdef2b75aa60cde1ca00e0aa3f89139ac89c6ae4Anders Carlsson CastKind Kind; 18520835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis Stmt *Op; 1853409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson 18547ab9d574d27ecee1f130e5755aa403e5ab529b6bAnders Carlsson /// BasePath - For derived-to-base and base-to-derived casts, the base array 18557ab9d574d27ecee1f130e5755aa403e5ab529b6bAnders Carlsson /// contains the inheritance path. 1856f1b48b7014992155286d58bb1676f9f51031d18bAnders Carlsson CXXBaseSpecifierArray BasePath; 18577ab9d574d27ecee1f130e5755aa403e5ab529b6bAnders Carlsson 18587ab9d574d27ecee1f130e5755aa403e5ab529b6bAnders Carlsson void CheckBasePath() const { 1859409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson#ifndef NDEBUG 1860409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson switch (getCastKind()) { 18615cf86ba6b5a724bf91cb52feade1158f1fbeb605Anders Carlsson case CK_DerivedToBase: 1862cee22421929c91b481f4d1bb85cd48c0f6b7510bAnders Carlsson case CK_UncheckedDerivedToBase: 1863cee22421929c91b481f4d1bb85cd48c0f6b7510bAnders Carlsson case CK_DerivedToBaseMemberPointer: 1864409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson case CK_BaseToDerived: 1865409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson case CK_BaseToDerivedMemberPointer: 1866f9d68e1dd015972318b2448f75115ff4fc3d5008Anders Carlsson assert(!BasePath.empty() && "Cast kind should have a base path!"); 1867f9d68e1dd015972318b2448f75115ff4fc3d5008Anders Carlsson break; 1868409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson 1869409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson // These should not have an inheritance path. 1870409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson case CK_Unknown: 1871409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson case CK_BitCast: 1872409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson case CK_NoOp: 1873409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson case CK_Dynamic: 1874409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson case CK_ToUnion: 1875409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson case CK_ArrayToPointerDecay: 1876409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson case CK_FunctionToPointerDecay: 1877409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson case CK_NullToMemberPointer: 1878409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson case CK_UserDefinedConversion: 1879409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson case CK_ConstructorConversion: 1880409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson case CK_IntegralToPointer: 1881409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson case CK_PointerToIntegral: 1882409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson case CK_ToVoid: 1883409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson case CK_VectorSplat: 1884409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson case CK_IntegralCast: 1885409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson case CK_IntegralToFloating: 1886409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson case CK_FloatingToIntegral: 1887409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson case CK_FloatingCast: 1888409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson case CK_MemberPointerToBoolean: 1889409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson case CK_AnyPointerToObjCPointerCast: 1890409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson case CK_AnyPointerToBlockPointerCast: 18915cf86ba6b5a724bf91cb52feade1158f1fbeb605Anders Carlsson assert(BasePath.empty() && "Cast kind should not have a base path!"); 1892409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson break; 1893409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson } 1894409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson#endif 1895409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson } 1896409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson 18970835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidisprotected: 1898409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson CastExpr(StmtClass SC, QualType ty, const CastKind kind, Expr *op, 1899f1b48b7014992155286d58bb1676f9f51031d18bAnders Carlsson CXXBaseSpecifierArray BasePath) : 1900898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor Expr(SC, ty, 1901898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // Cast expressions are type-dependent if the type is 1902898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // dependent (C++ [temp.dep.expr]p3). 1903898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor ty->isDependentType(), 1904898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // Cast expressions are value-dependent if the type is 1905898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // dependent or if the subexpression is value-dependent. 19061eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump ty->isDependentType() || (op && op->isValueDependent())), 19077ab9d574d27ecee1f130e5755aa403e5ab529b6bAnders Carlsson Kind(kind), Op(op), BasePath(BasePath) { 19087ab9d574d27ecee1f130e5755aa403e5ab529b6bAnders Carlsson CheckBasePath(); 1909409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson } 19101eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1911087fd536809ebe754d91c641a98917e02dd7452dDouglas Gregor /// \brief Construct an empty cast. 19121eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump CastExpr(StmtClass SC, EmptyShell Empty) 1913087fd536809ebe754d91c641a98917e02dd7452dDouglas Gregor : Expr(SC, Empty) { } 19141eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1915a3bddeda81ca784bed5501d79e1e7c53befaa91dAnders Carlsson virtual void DoDestroy(ASTContext &C); 1916a3bddeda81ca784bed5501d79e1e7c53befaa91dAnders Carlsson 19170835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidispublic: 1918cdef2b75aa60cde1ca00e0aa3f89139ac89c6ae4Anders Carlsson CastKind getCastKind() const { return Kind; } 1919cdef2b75aa60cde1ca00e0aa3f89139ac89c6ae4Anders Carlsson void setCastKind(CastKind K) { Kind = K; } 1920f8ec55a104e55961f8666f773dce99bbc628298fAnders Carlsson const char *getCastKindName() const; 1921f8ec55a104e55961f8666f773dce99bbc628298fAnders Carlsson 19220835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis Expr *getSubExpr() { return cast<Expr>(Op); } 19230835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis const Expr *getSubExpr() const { return cast<Expr>(Op); } 1924087fd536809ebe754d91c641a98917e02dd7452dDouglas Gregor void setSubExpr(Expr *E) { Op = E; } 1925087fd536809ebe754d91c641a98917e02dd7452dDouglas Gregor 19266eef519fc8a97bb7ca6066f23d35e10f06b2c1b5Douglas Gregor /// \brief Retrieve the cast subexpression as it was written in the source 19276eef519fc8a97bb7ca6066f23d35e10f06b2c1b5Douglas Gregor /// code, looking through any implicit casts or other intermediate nodes 19286eef519fc8a97bb7ca6066f23d35e10f06b2c1b5Douglas Gregor /// introduced by semantic analysis. 19296eef519fc8a97bb7ca6066f23d35e10f06b2c1b5Douglas Gregor Expr *getSubExprAsWritten(); 19306eef519fc8a97bb7ca6066f23d35e10f06b2c1b5Douglas Gregor const Expr *getSubExprAsWritten() const { 19316eef519fc8a97bb7ca6066f23d35e10f06b2c1b5Douglas Gregor return const_cast<CastExpr *>(this)->getSubExprAsWritten(); 19326eef519fc8a97bb7ca6066f23d35e10f06b2c1b5Douglas Gregor } 193341b2dcd465f1e438502c420effc9d0c747f9db8fAnders Carlsson 1934fc89c31a329eb6b36c6dbd8b7cb945d1a831650eAnders Carlsson const CXXBaseSpecifierArray& getBasePath() const { return BasePath; } 193541b2dcd465f1e438502c420effc9d0c747f9db8fAnders Carlsson 19361eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 19374bfe1968410ea8ffe3b4f629addd7c4bcf484765Sean Hunt return T->getStmtClass() >= firstCastExprConstant && 19384bfe1968410ea8ffe3b4f629addd7c4bcf484765Sean Hunt T->getStmtClass() <= lastCastExprConstant; 19390835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis } 19400835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis static bool classof(const CastExpr *) { return true; } 19411eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 19420835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis // Iterators 19430835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis virtual child_iterator child_begin(); 19440835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis virtual child_iterator child_end(); 19450835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis}; 19460835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis 194749badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// ImplicitCastExpr - Allows us to explicitly represent implicit type 194849badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// conversions, which have no direct representation in the original 194949badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// source code. For example: converting T[]->T*, void f()->void 195049badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// (*f)(), float->double, short->int, etc. 195149b4526992a8c8a6a290aa3efa9828154a24af8dSteve Naroff/// 1952bf3af056289893f58d37b05a2c80970708781d61Douglas Gregor/// In C, implicit casts always produce rvalues. However, in C++, an 1953bf3af056289893f58d37b05a2c80970708781d61Douglas Gregor/// implicit cast whose result is being bound to a reference will be 1954bf3af056289893f58d37b05a2c80970708781d61Douglas Gregor/// an lvalue. For example: 1955bf3af056289893f58d37b05a2c80970708781d61Douglas Gregor/// 1956bf3af056289893f58d37b05a2c80970708781d61Douglas Gregor/// @code 1957bf3af056289893f58d37b05a2c80970708781d61Douglas Gregor/// class Base { }; 1958bf3af056289893f58d37b05a2c80970708781d61Douglas Gregor/// class Derived : public Base { }; 19591eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// void f(Derived d) { 1960bf3af056289893f58d37b05a2c80970708781d61Douglas Gregor/// Base& b = d; // initializer is an ImplicitCastExpr to an lvalue of type Base 1961bf3af056289893f58d37b05a2c80970708781d61Douglas Gregor/// } 1962bf3af056289893f58d37b05a2c80970708781d61Douglas Gregor/// @endcode 19630835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidisclass ImplicitCastExpr : public CastExpr { 1964eb8f3063257a392f15aea48d42fb73ec51afc548Douglas Gregor /// LvalueCast - Whether this cast produces an lvalue. 1965eb8f3063257a392f15aea48d42fb73ec51afc548Douglas Gregor bool LvalueCast; 1966eb8f3063257a392f15aea48d42fb73ec51afc548Douglas Gregor 196749b4526992a8c8a6a290aa3efa9828154a24af8dSteve Naroffpublic: 1968c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt ImplicitCastExpr(QualType ty, CastKind kind, Expr *op, 1969f1b48b7014992155286d58bb1676f9f51031d18bAnders Carlsson CXXBaseSpecifierArray BasePath, bool Lvalue) 1970c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt : CastExpr(ImplicitCastExprClass, ty, kind, op, BasePath), 19717ab9d574d27ecee1f130e5755aa403e5ab529b6bAnders Carlsson LvalueCast(Lvalue) { } 197290045e8ebabf50d6f1b3a67081a621b20b5e5341Steve Naroff 1973087fd536809ebe754d91c641a98917e02dd7452dDouglas Gregor /// \brief Construct an empty implicit cast. 19741eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump explicit ImplicitCastExpr(EmptyShell Shell) 1975087fd536809ebe754d91c641a98917e02dd7452dDouglas Gregor : CastExpr(ImplicitCastExprClass, Shell) { } 1976087fd536809ebe754d91c641a98917e02dd7452dDouglas Gregor 19770835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis virtual SourceRange getSourceRange() const { 19780835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis return getSubExpr()->getSourceRange(); 19790835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis } 198090045e8ebabf50d6f1b3a67081a621b20b5e5341Steve Naroff 1981eb8f3063257a392f15aea48d42fb73ec51afc548Douglas Gregor /// isLvalueCast - Whether this cast produces an lvalue. 1982eb8f3063257a392f15aea48d42fb73ec51afc548Douglas Gregor bool isLvalueCast() const { return LvalueCast; } 1983eb8f3063257a392f15aea48d42fb73ec51afc548Douglas Gregor 1984eb8f3063257a392f15aea48d42fb73ec51afc548Douglas Gregor /// setLvalueCast - Set whether this cast produces an lvalue. 1985eb8f3063257a392f15aea48d42fb73ec51afc548Douglas Gregor void setLvalueCast(bool Lvalue) { LvalueCast = Lvalue; } 1986eb8f3063257a392f15aea48d42fb73ec51afc548Douglas Gregor 19871eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 19881eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == ImplicitCastExprClass; 198949b4526992a8c8a6a290aa3efa9828154a24af8dSteve Naroff } 199049b4526992a8c8a6a290aa3efa9828154a24af8dSteve Naroff static bool classof(const ImplicitCastExpr *) { return true; } 199149b4526992a8c8a6a290aa3efa9828154a24af8dSteve Naroff}; 199249b4526992a8c8a6a290aa3efa9828154a24af8dSteve Naroff 199349badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// ExplicitCastExpr - An explicit cast written in the source 19941eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// code. 199549badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// 199649badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// This class is effectively an abstract class, because it provides 199749badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// the basic representation of an explicitly-written cast without 199849badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// specifying which kind of cast (C cast, functional cast, static 199949badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// cast, etc.) was written; specific derived classes represent the 200049badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// particular style of cast and its location information. 20015f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 200249badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// Unlike implicit casts, explicit cast nodes have two different 200349badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// types: the type that was written into the source code, and the 200449badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// actual type of the expression as determined by semantic 200549badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// analysis. These types may differ slightly. For example, in C++ one 200649badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// can cast to a reference type, which indicates that the resulting 200749badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// expression will be an lvalue. The reference type, however, will 200849badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// not be used as the type of the expression. 20090835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidisclass ExplicitCastExpr : public CastExpr { 20109d125033a9853f3b572a4c9e2f9e2d4e5e346973John McCall /// TInfo - Source type info for the (written) type 20119d125033a9853f3b572a4c9e2f9e2d4e5e346973John McCall /// this expression is casting to. 20129d125033a9853f3b572a4c9e2f9e2d4e5e346973John McCall TypeSourceInfo *TInfo; 201349badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor 201449badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregorprotected: 2015c0a2fd8f092722c8f78b566ac4506a21437040e9Anders Carlsson ExplicitCastExpr(StmtClass SC, QualType exprTy, CastKind kind, 201641b2dcd465f1e438502c420effc9d0c747f9db8fAnders Carlsson Expr *op, CXXBaseSpecifierArray BasePath, 201741b2dcd465f1e438502c420effc9d0c747f9db8fAnders Carlsson TypeSourceInfo *writtenTy) 201841b2dcd465f1e438502c420effc9d0c747f9db8fAnders Carlsson : CastExpr(SC, exprTy, kind, op, BasePath), TInfo(writtenTy) {} 201949badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor 2020db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor /// \brief Construct an empty explicit cast. 20211eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump ExplicitCastExpr(StmtClass SC, EmptyShell Shell) 2022db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor : CastExpr(SC, Shell) { } 2023db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor 202449badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregorpublic: 20259d125033a9853f3b572a4c9e2f9e2d4e5e346973John McCall /// getTypeInfoAsWritten - Returns the type source info for the type 20269d125033a9853f3b572a4c9e2f9e2d4e5e346973John McCall /// that this expression is casting to. 20279d125033a9853f3b572a4c9e2f9e2d4e5e346973John McCall TypeSourceInfo *getTypeInfoAsWritten() const { return TInfo; } 20289d125033a9853f3b572a4c9e2f9e2d4e5e346973John McCall void setTypeInfoAsWritten(TypeSourceInfo *writtenTy) { TInfo = writtenTy; } 20299d125033a9853f3b572a4c9e2f9e2d4e5e346973John McCall 203049badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor /// getTypeAsWritten - Returns the type that this expression is 203149badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor /// casting to, as written in the source code. 20329d125033a9853f3b572a4c9e2f9e2d4e5e346973John McCall QualType getTypeAsWritten() const { return TInfo->getType(); } 203349badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor 20341eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 20354bfe1968410ea8ffe3b4f629addd7c4bcf484765Sean Hunt return T->getStmtClass() >= firstExplicitCastExprConstant && 20364bfe1968410ea8ffe3b4f629addd7c4bcf484765Sean Hunt T->getStmtClass() <= lastExplicitCastExprConstant; 203749badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor } 203849badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor static bool classof(const ExplicitCastExpr *) { return true; } 203949badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor}; 204049badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor 20416eec8e883de118b431e3ead5b1e604a6ac68ff6bDouglas Gregor/// CStyleCastExpr - An explicit cast in C (C99 6.5.4) or a C-style 204249badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// cast in C++ (C++ [expr.cast]), which uses the syntax 204349badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// (Type)expr. For example: @c (int)f. 20446eec8e883de118b431e3ead5b1e604a6ac68ff6bDouglas Gregorclass CStyleCastExpr : public ExplicitCastExpr { 2045b2f9e516327310d95840d442416084508f80c183Steve Naroff SourceLocation LPLoc; // the location of the left paren 2046b2f9e516327310d95840d442416084508f80c183Steve Naroff SourceLocation RPLoc; // the location of the right paren 20475f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 20489d125033a9853f3b572a4c9e2f9e2d4e5e346973John McCall CStyleCastExpr(QualType exprTy, CastKind kind, Expr *op, 204941b2dcd465f1e438502c420effc9d0c747f9db8fAnders Carlsson CXXBaseSpecifierArray BasePath, TypeSourceInfo *writtenTy, 205041b2dcd465f1e438502c420effc9d0c747f9db8fAnders Carlsson SourceLocation l, SourceLocation r) 205141b2dcd465f1e438502c420effc9d0c747f9db8fAnders Carlsson : ExplicitCastExpr(CStyleCastExprClass, exprTy, kind, op, BasePath, 205241b2dcd465f1e438502c420effc9d0c747f9db8fAnders Carlsson writtenTy), LPLoc(l), RPLoc(r) {} 205349b4526992a8c8a6a290aa3efa9828154a24af8dSteve Naroff 2054db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor /// \brief Construct an empty C-style explicit cast. 20551eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump explicit CStyleCastExpr(EmptyShell Shell) 2056db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor : ExplicitCastExpr(CStyleCastExprClass, Shell) { } 2057db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor 2058b2f9e516327310d95840d442416084508f80c183Steve Naroff SourceLocation getLParenLoc() const { return LPLoc; } 2059db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor void setLParenLoc(SourceLocation L) { LPLoc = L; } 2060db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor 2061b2f9e516327310d95840d442416084508f80c183Steve Naroff SourceLocation getRParenLoc() const { return RPLoc; } 2062db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor void setRParenLoc(SourceLocation L) { RPLoc = L; } 2063db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor 20645f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer virtual SourceRange getSourceRange() const { 2065b2f9e516327310d95840d442416084508f80c183Steve Naroff return SourceRange(LPLoc, getSubExpr()->getSourceRange().getEnd()); 20665f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 20671eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 20681eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == CStyleCastExprClass; 20695f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 20706eec8e883de118b431e3ead5b1e604a6ac68ff6bDouglas Gregor static bool classof(const CStyleCastExpr *) { return true; } 20715f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 20725f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 20733fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// \brief A builtin binary operation expression such as "x + y" or "x <= y". 20743fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// 20753fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// This expression node kind describes a builtin binary operation, 20763fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// such as "x + y" for integer values "x" and "y". The operands will 20773fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// already have been converted to appropriate types (e.g., by 20783fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// performing promotions or conversions). 20793fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// 20803fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// In C++, where operators may be overloaded, a different kind of 20813fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// expression node (CXXOperatorCallExpr) is used to express the 20823fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// invocation of an overloaded operator with operator syntax. Within 20833fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// a C++ template, whether BinaryOperator or CXXOperatorCallExpr is 20843fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// used to store an expression "x + y" depends on the subexpressions 20853fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// for x and y. If neither x or y is type-dependent, and the "+" 20863fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// operator resolves to a built-in operation, BinaryOperator will be 20873fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// used to express the computation (x and y may still be 20883fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// value-dependent). If either x or y is type-dependent, or if the 20893fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// "+" resolves to an overloaded operator, CXXOperatorCallExpr will 20903fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// be used to express the computation. 20915f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass BinaryOperator : public Expr { 20925f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 20935f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer enum Opcode { 20945f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Operators listed in order of precedence. 209503d6fb99224c36935c9af9f4785cb33453c99b2bChris Lattner // Note that additions to this should also update the StmtVisitor class. 2096224605064a4ef87d1c3d35ad1cb363f8b534012bSebastian Redl PtrMemD, PtrMemI, // [C++ 5.5] Pointer-to-member operators. 20975f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Mul, Div, Rem, // [C99 6.5.5] Multiplicative operators. 20985f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Add, Sub, // [C99 6.5.6] Additive operators. 20995f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Shl, Shr, // [C99 6.5.7] Bitwise shift operators. 21005f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer LT, GT, LE, GE, // [C99 6.5.8] Relational operators. 21015f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer EQ, NE, // [C99 6.5.9] Equality operators. 21025f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer And, // [C99 6.5.10] Bitwise AND operator. 21035f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Xor, // [C99 6.5.11] Bitwise XOR operator. 21045f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Or, // [C99 6.5.12] Bitwise OR operator. 21055f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer LAnd, // [C99 6.5.13] Logical AND operator. 21065f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer LOr, // [C99 6.5.14] Logical OR operator. 21075f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Assign, MulAssign,// [C99 6.5.16] Assignment operators. 21085f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer DivAssign, RemAssign, 21095f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer AddAssign, SubAssign, 21105f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ShlAssign, ShrAssign, 21115f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer AndAssign, XorAssign, 21125f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer OrAssign, 21135f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Comma // [C99 6.5.17] Comma operator. 21145f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer }; 211517d1b2ac9f8371a0a2e79d4f8e0008658164f080Chris Lattnerprivate: 211617d1b2ac9f8371a0a2e79d4f8e0008658164f080Chris Lattner enum { LHS, RHS, END_EXPR }; 21175549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Stmt* SubExprs[END_EXPR]; 211817d1b2ac9f8371a0a2e79d4f8e0008658164f080Chris Lattner Opcode Opc; 211917d1b2ac9f8371a0a2e79d4f8e0008658164f080Chris Lattner SourceLocation OpLoc; 21201eb4433ac451dc16f4133a88af2d002ac26c58efMike Stumppublic: 21211eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 212217d1b2ac9f8371a0a2e79d4f8e0008658164f080Chris Lattner BinaryOperator(Expr *lhs, Expr *rhs, Opcode opc, QualType ResTy, 212317d1b2ac9f8371a0a2e79d4f8e0008658164f080Chris Lattner SourceLocation opLoc) 2124898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor : Expr(BinaryOperatorClass, ResTy, 2125898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor lhs->isTypeDependent() || rhs->isTypeDependent(), 21261eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump lhs->isValueDependent() || rhs->isValueDependent()), 2127898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor Opc(opc), OpLoc(opLoc) { 21281237c673c07f9d827129ba02720108816abde562Ted Kremenek SubExprs[LHS] = lhs; 21291237c673c07f9d827129ba02720108816abde562Ted Kremenek SubExprs[RHS] = rhs; 21301eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump assert(!isCompoundAssignmentOp() && 21315f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer "Use ArithAssignBinaryOperator for compound assignments"); 21325f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 21335f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 2134db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor /// \brief Construct an empty binary operator. 21351eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump explicit BinaryOperator(EmptyShell Empty) 2136db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor : Expr(BinaryOperatorClass, Empty), Opc(Comma) { } 2137db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor 213817d1b2ac9f8371a0a2e79d4f8e0008658164f080Chris Lattner SourceLocation getOperatorLoc() const { return OpLoc; } 2139db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor void setOperatorLoc(SourceLocation L) { OpLoc = L; } 2140db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor 21415f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Opcode getOpcode() const { return Opc; } 2142db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor void setOpcode(Opcode O) { Opc = O; } 2143db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor 21445549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getLHS() const { return cast<Expr>(SubExprs[LHS]); } 2145db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor void setLHS(Expr *E) { SubExprs[LHS] = E; } 21465549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getRHS() const { return cast<Expr>(SubExprs[RHS]); } 2147db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor void setRHS(Expr *E) { SubExprs[RHS] = E; } 2148db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor 21495f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer virtual SourceRange getSourceRange() const { 21505f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return SourceRange(getLHS()->getLocStart(), getRHS()->getLocEnd()); 21515f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 21521eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 21535f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// getOpcodeStr - Turn an Opcode enum value into the punctuation char it 21545f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// corresponds to, e.g. "<<=". 21555f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static const char *getOpcodeStr(Opcode Op); 21565f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 2157063daf6e196c51f162e0485478355d8e280eef5cDouglas Gregor /// \brief Retrieve the binary opcode that corresponds to the given 2158063daf6e196c51f162e0485478355d8e280eef5cDouglas Gregor /// overloaded operator. 2159063daf6e196c51f162e0485478355d8e280eef5cDouglas Gregor static Opcode getOverloadedOpcode(OverloadedOperatorKind OO); 2160063daf6e196c51f162e0485478355d8e280eef5cDouglas Gregor 2161063daf6e196c51f162e0485478355d8e280eef5cDouglas Gregor /// \brief Retrieve the overloaded operator kind that corresponds to 2162063daf6e196c51f162e0485478355d8e280eef5cDouglas Gregor /// the given binary opcode. 2163063daf6e196c51f162e0485478355d8e280eef5cDouglas Gregor static OverloadedOperatorKind getOverloadedOperator(Opcode Opc); 2164063daf6e196c51f162e0485478355d8e280eef5cDouglas Gregor 21655f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// predicates to categorize the respective opcodes. 21665f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool isMultiplicativeOp() const { return Opc >= Mul && Opc <= Rem; } 21675f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool isAdditiveOp() const { return Opc == Add || Opc == Sub; } 216840a5ef90ac8d3f29bc8fe4ff80e00eaf3ef5b79fTed Kremenek static bool isShiftOp(Opcode Opc) { return Opc == Shl || Opc == Shr; } 216940a5ef90ac8d3f29bc8fe4ff80e00eaf3ef5b79fTed Kremenek bool isShiftOp() const { return isShiftOp(Opc); } 2170aee3c9375f97a49edef2a36f15df6abd9748e2a1Sebastian Redl 2171aee3c9375f97a49edef2a36f15df6abd9748e2a1Sebastian Redl static bool isBitwiseOp(Opcode Opc) { return Opc >= And && Opc <= Or; } 2172aee3c9375f97a49edef2a36f15df6abd9748e2a1Sebastian Redl bool isBitwiseOp() const { return isBitwiseOp(Opc); } 2173f2da7a06f6b98c3886d9b871ab839f5085b1c238Ted Kremenek 2174f2da7a06f6b98c3886d9b871ab839f5085b1c238Ted Kremenek static bool isRelationalOp(Opcode Opc) { return Opc >= LT && Opc <= GE; } 2175f2da7a06f6b98c3886d9b871ab839f5085b1c238Ted Kremenek bool isRelationalOp() const { return isRelationalOp(Opc); } 2176f2da7a06f6b98c3886d9b871ab839f5085b1c238Ted Kremenek 21771eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool isEqualityOp(Opcode Opc) { return Opc == EQ || Opc == NE; } 2178f2da7a06f6b98c3886d9b871ab839f5085b1c238Ted Kremenek bool isEqualityOp() const { return isEqualityOp(Opc); } 21791eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2180aee3c9375f97a49edef2a36f15df6abd9748e2a1Sebastian Redl static bool isComparisonOp(Opcode Opc) { return Opc >= LT && Opc <= NE; } 2181aee3c9375f97a49edef2a36f15df6abd9748e2a1Sebastian Redl bool isComparisonOp() const { return isComparisonOp(Opc); } 2182aee3c9375f97a49edef2a36f15df6abd9748e2a1Sebastian Redl 2183f2da7a06f6b98c3886d9b871ab839f5085b1c238Ted Kremenek static bool isLogicalOp(Opcode Opc) { return Opc == LAnd || Opc == LOr; } 2184f2da7a06f6b98c3886d9b871ab839f5085b1c238Ted Kremenek bool isLogicalOp() const { return isLogicalOp(Opc); } 2185f2da7a06f6b98c3886d9b871ab839f5085b1c238Ted Kremenek 21865f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool isAssignmentOp() const { return Opc >= Assign && Opc <= OrAssign; } 21875f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool isCompoundAssignmentOp() const { return Opc > Assign && Opc <= OrAssign;} 21885f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool isShiftAssignOp() const { return Opc == ShlAssign || Opc == ShrAssign; } 21891eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 21901eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *S) { 21914bfe1968410ea8ffe3b4f629addd7c4bcf484765Sean Hunt return S->getStmtClass() >= firstBinaryOperatorConstant && 21924bfe1968410ea8ffe3b4f629addd7c4bcf484765Sean Hunt S->getStmtClass() <= lastBinaryOperatorConstant; 21935f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 21945f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const BinaryOperator *) { return true; } 21951237c673c07f9d827129ba02720108816abde562Ted Kremenek 21961237c673c07f9d827129ba02720108816abde562Ted Kremenek // Iterators 21971237c673c07f9d827129ba02720108816abde562Ted Kremenek virtual child_iterator child_begin(); 21981237c673c07f9d827129ba02720108816abde562Ted Kremenek virtual child_iterator child_end(); 21991237c673c07f9d827129ba02720108816abde562Ted Kremenek 22005f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerprotected: 220117d1b2ac9f8371a0a2e79d4f8e0008658164f080Chris Lattner BinaryOperator(Expr *lhs, Expr *rhs, Opcode opc, QualType ResTy, 22022333f7727f97018d6742e1e0938133bcfad967abEli Friedman SourceLocation opLoc, bool dead) 22032333f7727f97018d6742e1e0938133bcfad967abEli Friedman : Expr(CompoundAssignOperatorClass, ResTy, 22042333f7727f97018d6742e1e0938133bcfad967abEli Friedman lhs->isTypeDependent() || rhs->isTypeDependent(), 22052333f7727f97018d6742e1e0938133bcfad967abEli Friedman lhs->isValueDependent() || rhs->isValueDependent()), 22062333f7727f97018d6742e1e0938133bcfad967abEli Friedman Opc(opc), OpLoc(opLoc) { 22071237c673c07f9d827129ba02720108816abde562Ted Kremenek SubExprs[LHS] = lhs; 22081237c673c07f9d827129ba02720108816abde562Ted Kremenek SubExprs[RHS] = rhs; 22095f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 2210ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor 22111eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump BinaryOperator(StmtClass SC, EmptyShell Empty) 2212ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor : Expr(SC, Empty), Opc(MulAssign) { } 22135f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 22145f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 22155f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// CompoundAssignOperator - For compound assignments (e.g. +=), we keep 22165f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// track of the type the operation is performed in. Due to the semantics of 22175f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// these operators, the operands are promoted, the aritmetic performed, an 22185f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// implicit conversion back to the result type done, then the assignment takes 22195f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// place. This captures the intermediate type which the computation is done 22205f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// in. 22215f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass CompoundAssignOperator : public BinaryOperator { 2222ab3a852ae713189444dcbf75e70accf1e8c2b7f2Eli Friedman QualType ComputationLHSType; 2223ab3a852ae713189444dcbf75e70accf1e8c2b7f2Eli Friedman QualType ComputationResultType; 22245f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 22255f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer CompoundAssignOperator(Expr *lhs, Expr *rhs, Opcode opc, 2226ab3a852ae713189444dcbf75e70accf1e8c2b7f2Eli Friedman QualType ResType, QualType CompLHSType, 2227ab3a852ae713189444dcbf75e70accf1e8c2b7f2Eli Friedman QualType CompResultType, 222817d1b2ac9f8371a0a2e79d4f8e0008658164f080Chris Lattner SourceLocation OpLoc) 222917d1b2ac9f8371a0a2e79d4f8e0008658164f080Chris Lattner : BinaryOperator(lhs, rhs, opc, ResType, OpLoc, true), 2230ab3a852ae713189444dcbf75e70accf1e8c2b7f2Eli Friedman ComputationLHSType(CompLHSType), 2231ab3a852ae713189444dcbf75e70accf1e8c2b7f2Eli Friedman ComputationResultType(CompResultType) { 22321eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump assert(isCompoundAssignmentOp() && 22335f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer "Only should be used for compound assignments"); 22345f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 22355f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 2236ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor /// \brief Build an empty compound assignment operator expression. 2237ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor explicit CompoundAssignOperator(EmptyShell Empty) 2238ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor : BinaryOperator(CompoundAssignOperatorClass, Empty) { } 2239ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor 2240ab3a852ae713189444dcbf75e70accf1e8c2b7f2Eli Friedman // The two computation types are the type the LHS is converted 2241ab3a852ae713189444dcbf75e70accf1e8c2b7f2Eli Friedman // to for the computation and the type of the result; the two are 2242ab3a852ae713189444dcbf75e70accf1e8c2b7f2Eli Friedman // distinct in a few cases (specifically, int+=ptr and ptr-=ptr). 2243ab3a852ae713189444dcbf75e70accf1e8c2b7f2Eli Friedman QualType getComputationLHSType() const { return ComputationLHSType; } 2244ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor void setComputationLHSType(QualType T) { ComputationLHSType = T; } 2245ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor 2246ab3a852ae713189444dcbf75e70accf1e8c2b7f2Eli Friedman QualType getComputationResultType() const { return ComputationResultType; } 2247ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor void setComputationResultType(QualType T) { ComputationResultType = T; } 2248ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor 22495f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const CompoundAssignOperator *) { return true; } 22501eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *S) { 22511eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return S->getStmtClass() == CompoundAssignOperatorClass; 22525f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 22535f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 22545f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 22555f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// ConditionalOperator - The ?: operator. Note that LHS may be null when the 22565f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// GNU "missing LHS" extension is in use. 22575f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 22585f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass ConditionalOperator : public Expr { 22591237c673c07f9d827129ba02720108816abde562Ted Kremenek enum { COND, LHS, RHS, END_EXPR }; 22605549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Stmt* SubExprs[END_EXPR]; // Left/Middle/Right hand sides. 226147e1f7c68bf375cac470fdb2b599ddbb395aeb52Douglas Gregor SourceLocation QuestionLoc, ColonLoc; 22625f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 226347e1f7c68bf375cac470fdb2b599ddbb395aeb52Douglas Gregor ConditionalOperator(Expr *cond, SourceLocation QLoc, Expr *lhs, 226447e1f7c68bf375cac470fdb2b599ddbb395aeb52Douglas Gregor SourceLocation CLoc, Expr *rhs, QualType t) 2265898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor : Expr(ConditionalOperatorClass, t, 2266898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // FIXME: the type of the conditional operator doesn't 2267898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // depend on the type of the conditional, but the standard 2268898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // seems to imply that it could. File a bug! 2269898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor ((lhs && lhs->isTypeDependent()) || (rhs && rhs->isTypeDependent())), 22701eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump (cond->isValueDependent() || 2271898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor (lhs && lhs->isValueDependent()) || 227247e1f7c68bf375cac470fdb2b599ddbb395aeb52Douglas Gregor (rhs && rhs->isValueDependent()))), 227347e1f7c68bf375cac470fdb2b599ddbb395aeb52Douglas Gregor QuestionLoc(QLoc), 227447e1f7c68bf375cac470fdb2b599ddbb395aeb52Douglas Gregor ColonLoc(CLoc) { 22751237c673c07f9d827129ba02720108816abde562Ted Kremenek SubExprs[COND] = cond; 22761237c673c07f9d827129ba02720108816abde562Ted Kremenek SubExprs[LHS] = lhs; 22771237c673c07f9d827129ba02720108816abde562Ted Kremenek SubExprs[RHS] = rhs; 22781237c673c07f9d827129ba02720108816abde562Ted Kremenek } 22795f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 2280ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor /// \brief Build an empty conditional operator. 2281ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor explicit ConditionalOperator(EmptyShell Empty) 2282ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor : Expr(ConditionalOperatorClass, Empty) { } 2283ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor 2284395a2abf0028968d85958610e393e067885dc14fTed Kremenek // getCond - Return the expression representing the condition for 2285395a2abf0028968d85958610e393e067885dc14fTed Kremenek // the ?: operator. 22865549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getCond() const { return cast<Expr>(SubExprs[COND]); } 2287ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor void setCond(Expr *E) { SubExprs[COND] = E; } 2288395a2abf0028968d85958610e393e067885dc14fTed Kremenek 2289395a2abf0028968d85958610e393e067885dc14fTed Kremenek // getTrueExpr - Return the subexpression representing the value of the ?: 2290395a2abf0028968d85958610e393e067885dc14fTed Kremenek // expression if the condition evaluates to true. In most cases this value 2291395a2abf0028968d85958610e393e067885dc14fTed Kremenek // will be the same as getLHS() except a GCC extension allows the left 2292395a2abf0028968d85958610e393e067885dc14fTed Kremenek // subexpression to be omitted, and instead of the condition be returned. 2293395a2abf0028968d85958610e393e067885dc14fTed Kremenek // e.g: x ?: y is shorthand for x ? x : y, except that the expression "x" 22941eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // is only evaluated once. 2295395a2abf0028968d85958610e393e067885dc14fTed Kremenek Expr *getTrueExpr() const { 22965549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek return cast<Expr>(SubExprs[LHS] ? SubExprs[LHS] : SubExprs[COND]); 2297395a2abf0028968d85958610e393e067885dc14fTed Kremenek } 22981eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2299395a2abf0028968d85958610e393e067885dc14fTed Kremenek // getTrueExpr - Return the subexpression representing the value of the ?: 2300395a2abf0028968d85958610e393e067885dc14fTed Kremenek // expression if the condition evaluates to false. This is the same as getRHS. 23015549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getFalseExpr() const { return cast<Expr>(SubExprs[RHS]); } 23021eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 23035549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getLHS() const { return cast_or_null<Expr>(SubExprs[LHS]); } 2304ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor void setLHS(Expr *E) { SubExprs[LHS] = E; } 2305ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor 23065549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getRHS() const { return cast<Expr>(SubExprs[RHS]); } 2307ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor void setRHS(Expr *E) { SubExprs[RHS] = E; } 23085f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 230947e1f7c68bf375cac470fdb2b599ddbb395aeb52Douglas Gregor SourceLocation getQuestionLoc() const { return QuestionLoc; } 231047e1f7c68bf375cac470fdb2b599ddbb395aeb52Douglas Gregor void setQuestionLoc(SourceLocation L) { QuestionLoc = L; } 231147e1f7c68bf375cac470fdb2b599ddbb395aeb52Douglas Gregor 231247e1f7c68bf375cac470fdb2b599ddbb395aeb52Douglas Gregor SourceLocation getColonLoc() const { return ColonLoc; } 231347e1f7c68bf375cac470fdb2b599ddbb395aeb52Douglas Gregor void setColonLoc(SourceLocation L) { ColonLoc = L; } 231447e1f7c68bf375cac470fdb2b599ddbb395aeb52Douglas Gregor 23155f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer virtual SourceRange getSourceRange() const { 23165f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return SourceRange(getCond()->getLocStart(), getRHS()->getLocEnd()); 23175f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 23181eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 23191eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == ConditionalOperatorClass; 23205f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 23215f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const ConditionalOperator *) { return true; } 23221eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 23231237c673c07f9d827129ba02720108816abde562Ted Kremenek // Iterators 23241237c673c07f9d827129ba02720108816abde562Ted Kremenek virtual child_iterator child_begin(); 23251237c673c07f9d827129ba02720108816abde562Ted Kremenek virtual child_iterator child_end(); 23265f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 23275f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 23286481a57fefbf1a313ff439028470fe4c27a3b7a3Chris Lattner/// AddrLabelExpr - The GNU address of label extension, representing &&label. 23296481a57fefbf1a313ff439028470fe4c27a3b7a3Chris Lattnerclass AddrLabelExpr : public Expr { 23305f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation AmpAmpLoc, LabelLoc; 23315f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer LabelStmt *Label; 23325f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 23336481a57fefbf1a313ff439028470fe4c27a3b7a3Chris Lattner AddrLabelExpr(SourceLocation AALoc, SourceLocation LLoc, LabelStmt *L, 23346481a57fefbf1a313ff439028470fe4c27a3b7a3Chris Lattner QualType t) 23352333f7727f97018d6742e1e0938133bcfad967abEli Friedman : Expr(AddrLabelExprClass, t, false, false), 23362333f7727f97018d6742e1e0938133bcfad967abEli Friedman AmpAmpLoc(AALoc), LabelLoc(LLoc), Label(L) {} 23371eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 23387d5c2f241c74e5f8d9ec492e8f9f268e5e9ae41fDouglas Gregor /// \brief Build an empty address of a label expression. 23391eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump explicit AddrLabelExpr(EmptyShell Empty) 23407d5c2f241c74e5f8d9ec492e8f9f268e5e9ae41fDouglas Gregor : Expr(AddrLabelExprClass, Empty) { } 23417d5c2f241c74e5f8d9ec492e8f9f268e5e9ae41fDouglas Gregor 23427d5c2f241c74e5f8d9ec492e8f9f268e5e9ae41fDouglas Gregor SourceLocation getAmpAmpLoc() const { return AmpAmpLoc; } 23437d5c2f241c74e5f8d9ec492e8f9f268e5e9ae41fDouglas Gregor void setAmpAmpLoc(SourceLocation L) { AmpAmpLoc = L; } 23447d5c2f241c74e5f8d9ec492e8f9f268e5e9ae41fDouglas Gregor SourceLocation getLabelLoc() const { return LabelLoc; } 23457d5c2f241c74e5f8d9ec492e8f9f268e5e9ae41fDouglas Gregor void setLabelLoc(SourceLocation L) { LabelLoc = L; } 23467d5c2f241c74e5f8d9ec492e8f9f268e5e9ae41fDouglas Gregor 23475f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer virtual SourceRange getSourceRange() const { 23485f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return SourceRange(AmpAmpLoc, LabelLoc); 23495f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 23501eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 23515f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer LabelStmt *getLabel() const { return Label; } 23527d5c2f241c74e5f8d9ec492e8f9f268e5e9ae41fDouglas Gregor void setLabel(LabelStmt *S) { Label = S; } 23537d5c2f241c74e5f8d9ec492e8f9f268e5e9ae41fDouglas Gregor 23545f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const Stmt *T) { 23551eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == AddrLabelExprClass; 23565f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 23576481a57fefbf1a313ff439028470fe4c27a3b7a3Chris Lattner static bool classof(const AddrLabelExpr *) { return true; } 23581eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 23591237c673c07f9d827129ba02720108816abde562Ted Kremenek // Iterators 23601237c673c07f9d827129ba02720108816abde562Ted Kremenek virtual child_iterator child_begin(); 23611237c673c07f9d827129ba02720108816abde562Ted Kremenek virtual child_iterator child_end(); 23625f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 2363ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner 2364ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner/// StmtExpr - This is the GNU Statement Expression extension: ({int X=4; X;}). 2365ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner/// The StmtExpr contains a single CompoundStmt node, which it evaluates and 2366ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner/// takes the value of the last subexpression. 2367ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattnerclass StmtExpr : public Expr { 23685549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Stmt *SubStmt; 2369ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner SourceLocation LParenLoc, RParenLoc; 2370ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattnerpublic: 23712333f7727f97018d6742e1e0938133bcfad967abEli Friedman // FIXME: Does type-dependence need to be computed differently? 2372d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroff StmtExpr(CompoundStmt *substmt, QualType T, 2373d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroff SourceLocation lp, SourceLocation rp) : 23742333f7727f97018d6742e1e0938133bcfad967abEli Friedman Expr(StmtExprClass, T, T->isDependentType(), false), 23752333f7727f97018d6742e1e0938133bcfad967abEli Friedman SubStmt(substmt), LParenLoc(lp), RParenLoc(rp) { } 23761eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 23776a2dd55b0b3ae376d449a4b07bbb6b2d30b26330Douglas Gregor /// \brief Build an empty statement expression. 23786a2dd55b0b3ae376d449a4b07bbb6b2d30b26330Douglas Gregor explicit StmtExpr(EmptyShell Empty) : Expr(StmtExprClass, Empty) { } 23796a2dd55b0b3ae376d449a4b07bbb6b2d30b26330Douglas Gregor 23805549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek CompoundStmt *getSubStmt() { return cast<CompoundStmt>(SubStmt); } 23815549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek const CompoundStmt *getSubStmt() const { return cast<CompoundStmt>(SubStmt); } 23826a2dd55b0b3ae376d449a4b07bbb6b2d30b26330Douglas Gregor void setSubStmt(CompoundStmt *S) { SubStmt = S; } 23836a2dd55b0b3ae376d449a4b07bbb6b2d30b26330Douglas Gregor 2384ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner virtual SourceRange getSourceRange() const { 2385ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner return SourceRange(LParenLoc, RParenLoc); 2386ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner } 23871eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2388026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner SourceLocation getLParenLoc() const { return LParenLoc; } 23896a2dd55b0b3ae376d449a4b07bbb6b2d30b26330Douglas Gregor void setLParenLoc(SourceLocation L) { LParenLoc = L; } 2390026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner SourceLocation getRParenLoc() const { return RParenLoc; } 23916a2dd55b0b3ae376d449a4b07bbb6b2d30b26330Douglas Gregor void setRParenLoc(SourceLocation L) { RParenLoc = L; } 23921eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2393ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner static bool classof(const Stmt *T) { 23941eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == StmtExprClass; 2395ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner } 2396ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner static bool classof(const StmtExpr *) { return true; } 23971eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 23981237c673c07f9d827129ba02720108816abde562Ted Kremenek // Iterators 23991237c673c07f9d827129ba02720108816abde562Ted Kremenek virtual child_iterator child_begin(); 24001237c673c07f9d827129ba02720108816abde562Ted Kremenek virtual child_iterator child_end(); 2401ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner}; 2402ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner 2403dc241b42c7588f99027b035a09b71557a6db219eDouglas Gregor/// TypesCompatibleExpr - GNU builtin-in function __builtin_types_compatible_p. 2404d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroff/// This AST node represents a function that returns 1 if two *types* (not 2405d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroff/// expressions) are compatible. The result of this built-in function can be 2406d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroff/// used in integer constant expressions. 2407d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroffclass TypesCompatibleExpr : public Expr { 2408d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroff QualType Type1; 2409d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroff QualType Type2; 2410363bcff47df2fda3cfcfcd994b7888157df58c43Steve Naroff SourceLocation BuiltinLoc, RParenLoc; 2411d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroffpublic: 24121eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump TypesCompatibleExpr(QualType ReturnType, SourceLocation BLoc, 24131eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump QualType t1, QualType t2, SourceLocation RP) : 24142333f7727f97018d6742e1e0938133bcfad967abEli Friedman Expr(TypesCompatibleExprClass, ReturnType, false, false), 24152333f7727f97018d6742e1e0938133bcfad967abEli Friedman Type1(t1), Type2(t2), BuiltinLoc(BLoc), RParenLoc(RP) {} 2416d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroff 241744cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor /// \brief Build an empty __builtin_type_compatible_p expression. 241844cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor explicit TypesCompatibleExpr(EmptyShell Empty) 241944cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor : Expr(TypesCompatibleExprClass, Empty) { } 242044cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor 24217f28fe8e00ec4fac17977374d8da491f873a3b05Steve Naroff QualType getArgType1() const { return Type1; } 242244cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor void setArgType1(QualType T) { Type1 = T; } 24237f28fe8e00ec4fac17977374d8da491f873a3b05Steve Naroff QualType getArgType2() const { return Type2; } 242444cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor void setArgType2(QualType T) { Type2 = T; } 24251eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 242644cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor SourceLocation getBuiltinLoc() const { return BuiltinLoc; } 242744cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor void setBuiltinLoc(SourceLocation L) { BuiltinLoc = L; } 24281eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 242944cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor SourceLocation getRParenLoc() const { return RParenLoc; } 243044cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor void setRParenLoc(SourceLocation L) { RParenLoc = L; } 24311eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2432d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroff virtual SourceRange getSourceRange() const { 2433363bcff47df2fda3cfcfcd994b7888157df58c43Steve Naroff return SourceRange(BuiltinLoc, RParenLoc); 2434d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroff } 2435d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroff static bool classof(const Stmt *T) { 24361eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == TypesCompatibleExprClass; 2437d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroff } 2438d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroff static bool classof(const TypesCompatibleExpr *) { return true; } 24391eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 24401237c673c07f9d827129ba02720108816abde562Ted Kremenek // Iterators 24411237c673c07f9d827129ba02720108816abde562Ted Kremenek virtual child_iterator child_begin(); 24421237c673c07f9d827129ba02720108816abde562Ted Kremenek virtual child_iterator child_end(); 2443d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroff}; 2444d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroff 2445d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman/// ShuffleVectorExpr - clang-specific builtin-in function 2446d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman/// __builtin_shufflevector. 2447d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman/// This AST node represents a operator that does a constant 2448d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman/// shuffle, similar to LLVM's shufflevector instruction. It takes 2449d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman/// two vectors and a variable number of constant indices, 2450d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman/// and returns the appropriately shuffled vector. 2451d38617c8a50f9729c254ab76cd359af797c6739bEli Friedmanclass ShuffleVectorExpr : public Expr { 2452d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman SourceLocation BuiltinLoc, RParenLoc; 2453d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman 2454d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman // SubExprs - the list of values passed to the __builtin_shufflevector 2455d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman // function. The first two are vectors, and the rest are constant 2456d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman // indices. The number of values in this list is always 2457d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman // 2+the number of indices in the vector type. 24585549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Stmt **SubExprs; 2459d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman unsigned NumExprs; 2460d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman 2461888376a2bbcfc2f047902249f8455918e2489ae1Nate Begemanprotected: 24621eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump virtual void DoDestroy(ASTContext &C); 2463888376a2bbcfc2f047902249f8455918e2489ae1Nate Begeman 2464d38617c8a50f9729c254ab76cd359af797c6739bEli Friedmanpublic: 24652333f7727f97018d6742e1e0938133bcfad967abEli Friedman // FIXME: Can a shufflevector be value-dependent? Does type-dependence need 24662333f7727f97018d6742e1e0938133bcfad967abEli Friedman // to be computed differently? 2467a88dc3079bedf70a5cfc39791727e43a10383006Nate Begeman ShuffleVectorExpr(ASTContext &C, Expr **args, unsigned nexpr, 24681eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump QualType Type, SourceLocation BLoc, 24691eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump SourceLocation RP) : 24702333f7727f97018d6742e1e0938133bcfad967abEli Friedman Expr(ShuffleVectorExprClass, Type, Type->isDependentType(), false), 24712333f7727f97018d6742e1e0938133bcfad967abEli Friedman BuiltinLoc(BLoc), RParenLoc(RP), NumExprs(nexpr) { 24721eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2473a88dc3079bedf70a5cfc39791727e43a10383006Nate Begeman SubExprs = new (C) Stmt*[nexpr]; 2474d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman for (unsigned i = 0; i < nexpr; i++) 2475d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman SubExprs[i] = args[i]; 2476d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman } 247794cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor 247894cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor /// \brief Build an empty vector-shuffle expression. 24791eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump explicit ShuffleVectorExpr(EmptyShell Empty) 248094cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor : Expr(ShuffleVectorExprClass, Empty), SubExprs(0) { } 248194cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor 248294cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor SourceLocation getBuiltinLoc() const { return BuiltinLoc; } 248394cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor void setBuiltinLoc(SourceLocation L) { BuiltinLoc = L; } 24841eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 248594cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor SourceLocation getRParenLoc() const { return RParenLoc; } 248694cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor void setRParenLoc(SourceLocation L) { RParenLoc = L; } 248794cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor 2488d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman virtual SourceRange getSourceRange() const { 2489d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman return SourceRange(BuiltinLoc, RParenLoc); 2490d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman } 2491d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman static bool classof(const Stmt *T) { 24921eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == ShuffleVectorExprClass; 2493d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman } 2494d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman static bool classof(const ShuffleVectorExpr *) { return true; } 24951eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2496888376a2bbcfc2f047902249f8455918e2489ae1Nate Begeman ~ShuffleVectorExpr() {} 24971eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2498d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman /// getNumSubExprs - Return the size of the SubExprs array. This includes the 2499d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman /// constant expression, the actual arguments passed in, and the function 2500d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman /// pointers. 2501d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman unsigned getNumSubExprs() const { return NumExprs; } 25021eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2503d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman /// getExpr - Return the Expr at the specified index. 2504d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman Expr *getExpr(unsigned Index) { 2505d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman assert((Index < NumExprs) && "Arg access out of range!"); 25065549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek return cast<Expr>(SubExprs[Index]); 2507d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman } 2508d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman const Expr *getExpr(unsigned Index) const { 2509d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman assert((Index < NumExprs) && "Arg access out of range!"); 25105549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek return cast<Expr>(SubExprs[Index]); 2511d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman } 25121eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2513888376a2bbcfc2f047902249f8455918e2489ae1Nate Begeman void setExprs(ASTContext &C, Expr ** Exprs, unsigned NumExprs); 251494cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor 2515dde8c94873976632e3ada4d8d067e1e244184d51Eli Friedman unsigned getShuffleMaskIdx(ASTContext &Ctx, unsigned N) { 2516dde8c94873976632e3ada4d8d067e1e244184d51Eli Friedman assert((N < NumExprs - 2) && "Shuffle idx out of range!"); 25179a901bb63990574ff0bcc12ff851d7a71cff8ddbEli Friedman return getExpr(N+2)->EvaluateAsInt(Ctx).getZExtValue(); 2518d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman } 25191eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2520d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman // Iterators 2521d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman virtual child_iterator child_begin(); 2522d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman virtual child_iterator child_end(); 2523d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman}; 2524d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman 2525d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff/// ChooseExpr - GNU builtin-in function __builtin_choose_expr. 25261eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// This AST node is similar to the conditional operator (?:) in C, with 2527d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff/// the following exceptions: 25287976932a1c256d447316ffac58e9821417725e34Eli Friedman/// - the test expression must be a integer constant expression. 25297976932a1c256d447316ffac58e9821417725e34Eli Friedman/// - the expression returned acts like the chosen subexpression in every 25307976932a1c256d447316ffac58e9821417725e34Eli Friedman/// visible way: the type is the same as that of the chosen subexpression, 25317976932a1c256d447316ffac58e9821417725e34Eli Friedman/// and all predicates (whether it's an l-value, whether it's an integer 25327976932a1c256d447316ffac58e9821417725e34Eli Friedman/// constant expression, etc.) return the same result as for the chosen 25337976932a1c256d447316ffac58e9821417725e34Eli Friedman/// sub-expression. 2534d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroffclass ChooseExpr : public Expr { 25351237c673c07f9d827129ba02720108816abde562Ted Kremenek enum { COND, LHS, RHS, END_EXPR }; 25365549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Stmt* SubExprs[END_EXPR]; // Left/Middle/Right hand sides. 2537d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff SourceLocation BuiltinLoc, RParenLoc; 2538d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroffpublic: 2539d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff ChooseExpr(SourceLocation BLoc, Expr *cond, Expr *lhs, Expr *rhs, QualType t, 2540ce94049b69f75b44c18584fe79cd238978b6b0d5Douglas Gregor SourceLocation RP, bool TypeDependent, bool ValueDependent) 2541ce94049b69f75b44c18584fe79cd238978b6b0d5Douglas Gregor : Expr(ChooseExprClass, t, TypeDependent, ValueDependent), 25421237c673c07f9d827129ba02720108816abde562Ted Kremenek BuiltinLoc(BLoc), RParenLoc(RP) { 25431237c673c07f9d827129ba02720108816abde562Ted Kremenek SubExprs[COND] = cond; 25441237c673c07f9d827129ba02720108816abde562Ted Kremenek SubExprs[LHS] = lhs; 25451237c673c07f9d827129ba02720108816abde562Ted Kremenek SubExprs[RHS] = rhs; 25461eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump } 25477976932a1c256d447316ffac58e9821417725e34Eli Friedman 254844cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor /// \brief Build an empty __builtin_choose_expr. 254944cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor explicit ChooseExpr(EmptyShell Empty) : Expr(ChooseExprClass, Empty) { } 255044cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor 25517976932a1c256d447316ffac58e9821417725e34Eli Friedman /// isConditionTrue - Return whether the condition is true (i.e. not 25527976932a1c256d447316ffac58e9821417725e34Eli Friedman /// equal to zero). 255327437caadea35f84d550cd29f024fcf3ea240eecChris Lattner bool isConditionTrue(ASTContext &C) const; 25547976932a1c256d447316ffac58e9821417725e34Eli Friedman 25557976932a1c256d447316ffac58e9821417725e34Eli Friedman /// getChosenSubExpr - Return the subexpression chosen according to the 25567976932a1c256d447316ffac58e9821417725e34Eli Friedman /// condition. 25577976932a1c256d447316ffac58e9821417725e34Eli Friedman Expr *getChosenSubExpr(ASTContext &C) const { 25587976932a1c256d447316ffac58e9821417725e34Eli Friedman return isConditionTrue(C) ? getLHS() : getRHS(); 25597976932a1c256d447316ffac58e9821417725e34Eli Friedman } 25607976932a1c256d447316ffac58e9821417725e34Eli Friedman 25615549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getCond() const { return cast<Expr>(SubExprs[COND]); } 256244cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor void setCond(Expr *E) { SubExprs[COND] = E; } 25635549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getLHS() const { return cast<Expr>(SubExprs[LHS]); } 256444cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor void setLHS(Expr *E) { SubExprs[LHS] = E; } 25655549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getRHS() const { return cast<Expr>(SubExprs[RHS]); } 256644cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor void setRHS(Expr *E) { SubExprs[RHS] = E; } 256744cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor 256844cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor SourceLocation getBuiltinLoc() const { return BuiltinLoc; } 256944cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor void setBuiltinLoc(SourceLocation L) { BuiltinLoc = L; } 25701eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 257144cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor SourceLocation getRParenLoc() const { return RParenLoc; } 257244cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor void setRParenLoc(SourceLocation L) { RParenLoc = L; } 25731237c673c07f9d827129ba02720108816abde562Ted Kremenek 2574d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff virtual SourceRange getSourceRange() const { 2575d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff return SourceRange(BuiltinLoc, RParenLoc); 2576d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff } 2577d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff static bool classof(const Stmt *T) { 25781eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == ChooseExprClass; 2579d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff } 2580d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff static bool classof(const ChooseExpr *) { return true; } 25811eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 25821237c673c07f9d827129ba02720108816abde562Ted Kremenek // Iterators 25831237c673c07f9d827129ba02720108816abde562Ted Kremenek virtual child_iterator child_begin(); 25841237c673c07f9d827129ba02720108816abde562Ted Kremenek virtual child_iterator child_end(); 2585d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff}; 2586d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff 25872d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor/// GNUNullExpr - Implements the GNU __null extension, which is a name 25882d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor/// for a null pointer constant that has integral type (e.g., int or 25892d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor/// long) and is the same size and alignment as a pointer. The __null 25902d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor/// extension is typically only used by system headers, which define 25912d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor/// NULL as __null in C++ rather than using 0 (which is an integer 25922d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor/// that may not match the size of a pointer). 25932d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregorclass GNUNullExpr : public Expr { 25942d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor /// TokenLoc - The location of the __null keyword. 25952d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor SourceLocation TokenLoc; 25962d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor 25972d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregorpublic: 25981eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump GNUNullExpr(QualType Ty, SourceLocation Loc) 25992333f7727f97018d6742e1e0938133bcfad967abEli Friedman : Expr(GNUNullExprClass, Ty, false, false), TokenLoc(Loc) { } 26002d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor 260144cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor /// \brief Build an empty GNU __null expression. 260244cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor explicit GNUNullExpr(EmptyShell Empty) : Expr(GNUNullExprClass, Empty) { } 260344cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor 26042d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor /// getTokenLocation - The location of the __null token. 26052d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor SourceLocation getTokenLocation() const { return TokenLoc; } 260644cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor void setTokenLocation(SourceLocation L) { TokenLoc = L; } 26072d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor 26082d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor virtual SourceRange getSourceRange() const { 26092d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor return SourceRange(TokenLoc); 26102d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor } 26112d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor static bool classof(const Stmt *T) { 26121eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == GNUNullExprClass; 26132d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor } 26142d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor static bool classof(const GNUNullExpr *) { return true; } 26151eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 26162d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor // Iterators 26172d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor virtual child_iterator child_begin(); 26182d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor virtual child_iterator child_end(); 26192d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor}; 26202d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor 262174626d6ef2e194fcc911e071556660ff331eb4a8Zhongxing Xu/// VAArgExpr, used for the builtin function __builtin_va_arg. 26227c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlssonclass VAArgExpr : public Expr { 26235549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Stmt *Val; 26247c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson SourceLocation BuiltinLoc, RParenLoc; 26257c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlssonpublic: 26267c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson VAArgExpr(SourceLocation BLoc, Expr* e, QualType t, SourceLocation RPLoc) 26272333f7727f97018d6742e1e0938133bcfad967abEli Friedman : Expr(VAArgExprClass, t, t->isDependentType(), false), 26287c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson Val(e), 26297c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson BuiltinLoc(BLoc), 26307c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson RParenLoc(RPLoc) { } 26311eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 263274626d6ef2e194fcc911e071556660ff331eb4a8Zhongxing Xu /// \brief Create an empty __builtin_va_arg expression. 2633d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor explicit VAArgExpr(EmptyShell Empty) : Expr(VAArgExprClass, Empty) { } 2634d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor 26355549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek const Expr *getSubExpr() const { return cast<Expr>(Val); } 26365549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getSubExpr() { return cast<Expr>(Val); } 2637d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor void setSubExpr(Expr *E) { Val = E; } 2638d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor 2639d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor SourceLocation getBuiltinLoc() const { return BuiltinLoc; } 2640d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor void setBuiltinLoc(SourceLocation L) { BuiltinLoc = L; } 26411eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2642d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor SourceLocation getRParenLoc() const { return RParenLoc; } 2643d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor void setRParenLoc(SourceLocation L) { RParenLoc = L; } 2644d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor 26457c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson virtual SourceRange getSourceRange() const { 26467c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson return SourceRange(BuiltinLoc, RParenLoc); 26471eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump } 26487c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson static bool classof(const Stmt *T) { 26497c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson return T->getStmtClass() == VAArgExprClass; 26507c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson } 26517c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson static bool classof(const VAArgExpr *) { return true; } 26521eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 26537c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson // Iterators 26547c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson virtual child_iterator child_begin(); 26551eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump virtual child_iterator child_end(); 26567c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson}; 26571eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 26584c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// @brief Describes an C or C++ initializer list. 26594c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// 26604c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// InitListExpr describes an initializer list, which can be used to 26614c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// initialize objects of different types, including 26624c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// struct/class/union types, arrays, and vectors. For example: 26634c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// 26644c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// @code 26654c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// struct foo x = { 1, { 2, 3 } }; 26664c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// @endcode 2667196ef51bc4d008ec1c69851fb3b0f8d036065931Chris Lattner/// 26684c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// Prior to semantic analysis, an initializer list will represent the 26694c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// initializer list as written by the user, but will have the 26704c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// placeholder type "void". This initializer list is called the 26714c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// syntactic form of the initializer, and may contain C99 designated 26724c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// initializers (represented as DesignatedInitExprs), initializations 26734c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// of subobject members without explicit braces, and so on. Clients 26744c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// interested in the original syntax of the initializer list should 26754c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// use the syntactic form of the initializer list. 2676196ef51bc4d008ec1c69851fb3b0f8d036065931Chris Lattner/// 26774c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// After semantic analysis, the initializer list will represent the 26784c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// semantic form of the initializer, where the initializations of all 26794c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// subobjects are made explicit with nested InitListExpr nodes and 26804c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// C99 designators have been eliminated by placing the designated 26814c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// initializations into the subobject they initialize. Additionally, 26824c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// any "holes" in the initialization, where no initializer has been 26834c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// specified for a particular subobject, will be replaced with 26843498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor/// implicitly-generated ImplicitValueInitExpr expressions that 26854c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// value-initialize the subobjects. Note, however, that the 26864c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// initializer lists may still have fewer initializers than there are 26874c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// elements to initialize within the object. 2688196ef51bc4d008ec1c69851fb3b0f8d036065931Chris Lattner/// 26894c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// Given the semantic form of the initializer list, one can retrieve 26904c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// the original syntactic form of that initializer list (if it 26914c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// exists) using getSyntacticForm(). Since many initializer lists 26924c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// have the same syntactic and semantic forms, getSyntacticForm() may 26934c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// return NULL, indicating that the current initializer list also 26944c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// serves as its syntactic form. 269566b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlssonclass InitListExpr : public Expr { 2696ba7bc5584b8d46f4e8deb3a9d363256908fa86eaTed Kremenek // FIXME: Eliminate this vector in favor of ASTContext allocation 2697709210feee317b8d6690dd1d15c2b74cfe55e261Ted Kremenek typedef ASTVector<Stmt *> InitExprsTy; 2698709210feee317b8d6690dd1d15c2b74cfe55e261Ted Kremenek InitExprsTy InitExprs; 269966b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson SourceLocation LBraceLoc, RBraceLoc; 27001eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 27014c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// Contains the initializer list that describes the syntactic form 27024c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// written in the source code. 27034c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor InitListExpr *SyntacticForm; 27044c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor 27050bb76897bedb8b747efc6523efb432fc24966118Douglas Gregor /// If this initializer list initializes a union, specifies which 27060bb76897bedb8b747efc6523efb432fc24966118Douglas Gregor /// field within the union will be initialized. 27070bb76897bedb8b747efc6523efb432fc24966118Douglas Gregor FieldDecl *UnionFieldInit; 27080bb76897bedb8b747efc6523efb432fc24966118Douglas Gregor 2709a9c878086036de36482cc21e35a33cabe9699b0aDouglas Gregor /// Whether this initializer list originally had a GNU array-range 2710a9c878086036de36482cc21e35a33cabe9699b0aDouglas Gregor /// designator in it. This is a temporary marker used by CodeGen. 2711a9c878086036de36482cc21e35a33cabe9699b0aDouglas Gregor bool HadArrayRangeDesignator; 2712a9c878086036de36482cc21e35a33cabe9699b0aDouglas Gregor 271366b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlssonpublic: 2714709210feee317b8d6690dd1d15c2b74cfe55e261Ted Kremenek InitListExpr(ASTContext &C, SourceLocation lbraceloc, 2715709210feee317b8d6690dd1d15c2b74cfe55e261Ted Kremenek Expr **initexprs, unsigned numinits, 2716ba7bc5584b8d46f4e8deb3a9d363256908fa86eaTed Kremenek SourceLocation rbraceloc); 2717d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor 2718d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor /// \brief Build an empty initializer list. 2719709210feee317b8d6690dd1d15c2b74cfe55e261Ted Kremenek explicit InitListExpr(ASTContext &C, EmptyShell Empty) 2720709210feee317b8d6690dd1d15c2b74cfe55e261Ted Kremenek : Expr(InitListExprClass, Empty), InitExprs(C) { } 27211eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2722ba7bc5584b8d46f4e8deb3a9d363256908fa86eaTed Kremenek unsigned getNumInits() const { return InitExprs.size(); } 27231eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 27241eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump const Expr* getInit(unsigned Init) const { 2725c5ae899b4bbf65488445316c63168079177db0edSteve Naroff assert(Init < getNumInits() && "Initializer access out of range!"); 27264c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor return cast_or_null<Expr>(InitExprs[Init]); 272766b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson } 27281eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 27291eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump Expr* getInit(unsigned Init) { 2730c5ae899b4bbf65488445316c63168079177db0edSteve Naroff assert(Init < getNumInits() && "Initializer access out of range!"); 27314c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor return cast_or_null<Expr>(InitExprs[Init]); 273266b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson } 27331eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 27341eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump void setInit(unsigned Init, Expr *expr) { 2735c5ae899b4bbf65488445316c63168079177db0edSteve Naroff assert(Init < getNumInits() && "Initializer access out of range!"); 27369e8925e72f53a9e2c4633b6b48e965ed01702fe4Steve Naroff InitExprs[Init] = expr; 27379e8925e72f53a9e2c4633b6b48e965ed01702fe4Steve Naroff } 2738c5ae899b4bbf65488445316c63168079177db0edSteve Naroff 2739fa2192042f223b5122a9e17719930f77634fd31fDouglas Gregor /// \brief Reserve space for some number of initializers. 2740709210feee317b8d6690dd1d15c2b74cfe55e261Ted Kremenek void reserveInits(ASTContext &C, unsigned NumInits); 27411eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 27424c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// @brief Specify the number of initializers 27434c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// 27444c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// If there are more than @p NumInits initializers, the remaining 27454c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// initializers will be destroyed. If there are fewer than @p 27464c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// NumInits initializers, NULL expressions will be added for the 27474c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// unknown initializers. 27484c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor void resizeInits(ASTContext &Context, unsigned NumInits); 27494c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor 27504c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// @brief Updates the initializer at index @p Init with the new 27514c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// expression @p expr, and returns the old expression at that 27524c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// location. 27534c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// 27544c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// When @p Init is out of range for this initializer list, the 27554c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// initializer list will be extended with NULL expressions to 27564c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// accomodate the new entry. 2757709210feee317b8d6690dd1d15c2b74cfe55e261Ted Kremenek Expr *updateInit(ASTContext &C, unsigned Init, Expr *expr); 2758c5ae899b4bbf65488445316c63168079177db0edSteve Naroff 27590bb76897bedb8b747efc6523efb432fc24966118Douglas Gregor /// \brief If this initializes a union, specifies which field in the 27600bb76897bedb8b747efc6523efb432fc24966118Douglas Gregor /// union to initialize. 27610bb76897bedb8b747efc6523efb432fc24966118Douglas Gregor /// 27620bb76897bedb8b747efc6523efb432fc24966118Douglas Gregor /// Typically, this field is the first named field within the 27630bb76897bedb8b747efc6523efb432fc24966118Douglas Gregor /// union. However, a designated initializer can specify the 27640bb76897bedb8b747efc6523efb432fc24966118Douglas Gregor /// initialization of a different field within the union. 27650bb76897bedb8b747efc6523efb432fc24966118Douglas Gregor FieldDecl *getInitializedFieldInUnion() { return UnionFieldInit; } 27660bb76897bedb8b747efc6523efb432fc24966118Douglas Gregor void setInitializedFieldInUnion(FieldDecl *FD) { UnionFieldInit = FD; } 27670bb76897bedb8b747efc6523efb432fc24966118Douglas Gregor 2768c5ae899b4bbf65488445316c63168079177db0edSteve Naroff // Explicit InitListExpr's originate from source code (and have valid source 2769c5ae899b4bbf65488445316c63168079177db0edSteve Naroff // locations). Implicit InitListExpr's are created by the semantic analyzer. 2770b3eef68111ffc220e449be96da1747998c057790Douglas Gregor bool isExplicit() { 2771b3eef68111ffc220e449be96da1747998c057790Douglas Gregor return LBraceLoc.isValid() && RBraceLoc.isValid(); 2772b3eef68111ffc220e449be96da1747998c057790Douglas Gregor } 27731eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2774d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor SourceLocation getLBraceLoc() const { return LBraceLoc; } 2775d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor void setLBraceLoc(SourceLocation Loc) { LBraceLoc = Loc; } 2776d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor SourceLocation getRBraceLoc() const { return RBraceLoc; } 277787fd703e097c27d63479cb83b687d4000a22bbb1Douglas Gregor void setRBraceLoc(SourceLocation Loc) { RBraceLoc = Loc; } 277887fd703e097c27d63479cb83b687d4000a22bbb1Douglas Gregor 27794c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// @brief Retrieve the initializer list that describes the 27804c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// syntactic form of the initializer. 27814c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// 27821eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /// 27834c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor InitListExpr *getSyntacticForm() const { return SyntacticForm; } 27844c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor void setSyntacticForm(InitListExpr *Init) { SyntacticForm = Init; } 27854c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor 2786a9c878086036de36482cc21e35a33cabe9699b0aDouglas Gregor bool hadArrayRangeDesignator() const { return HadArrayRangeDesignator; } 27871eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump void sawArrayRangeDesignator(bool ARD = true) { 2788d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor HadArrayRangeDesignator = ARD; 2789a9c878086036de36482cc21e35a33cabe9699b0aDouglas Gregor } 2790a9c878086036de36482cc21e35a33cabe9699b0aDouglas Gregor 279166b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson virtual SourceRange getSourceRange() const { 279266b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson return SourceRange(LBraceLoc, RBraceLoc); 27931eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump } 279466b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson static bool classof(const Stmt *T) { 27951eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == InitListExprClass; 279666b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson } 279766b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson static bool classof(const InitListExpr *) { return true; } 27981eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 279966b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson // Iterators 280066b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson virtual child_iterator child_begin(); 280166b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson virtual child_iterator child_end(); 28021eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2803709210feee317b8d6690dd1d15c2b74cfe55e261Ted Kremenek typedef InitExprsTy::iterator iterator; 2804709210feee317b8d6690dd1d15c2b74cfe55e261Ted Kremenek typedef InitExprsTy::reverse_iterator reverse_iterator; 28051eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2806ba7bc5584b8d46f4e8deb3a9d363256908fa86eaTed Kremenek iterator begin() { return InitExprs.begin(); } 2807ba7bc5584b8d46f4e8deb3a9d363256908fa86eaTed Kremenek iterator end() { return InitExprs.end(); } 2808ba7bc5584b8d46f4e8deb3a9d363256908fa86eaTed Kremenek reverse_iterator rbegin() { return InitExprs.rbegin(); } 2809ba7bc5584b8d46f4e8deb3a9d363256908fa86eaTed Kremenek reverse_iterator rend() { return InitExprs.rend(); } 281066b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson}; 281166b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson 281205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// @brief Represents a C99 designated initializer expression. 281305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// 281405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// A designated initializer expression (C99 6.7.8) contains one or 281505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// more designators (which can be field designators, array 281605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// designators, or GNU array-range designators) followed by an 281705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// expression that initializes the field or element(s) that the 281805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// designators refer to. For example, given: 28191eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// 282005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// @code 282105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// struct point { 282205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// double x; 282305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// double y; 282405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// }; 282505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// struct point ptarray[10] = { [2].y = 1.0, [2].x = 2.0, [0].x = 1.0 }; 282605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// @endcode 282705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// 282805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// The InitListExpr contains three DesignatedInitExprs, the first of 282905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// which covers @c [2].y=1.0. This DesignatedInitExpr will have two 283005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// designators, one array designator for @c [2] followed by one field 283105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// designator for @c .y. The initalization expression will be 1.0. 283205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregorclass DesignatedInitExpr : public Expr { 2833ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregorpublic: 2834ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor /// \brief Forward declaration of the Designator class. 2835ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor class Designator; 2836ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor 2837ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregorprivate: 283805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// The location of the '=' or ':' prior to the actual initializer 283905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// expression. 284005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor SourceLocation EqualOrColonLoc; 284105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 2842eeae8f072748affce25ab4064982626361293390Douglas Gregor /// Whether this designated initializer used the GNU deprecated 284305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// syntax rather than the C99 '=' syntax. 2844eeae8f072748affce25ab4064982626361293390Douglas Gregor bool GNUSyntax : 1; 284505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 284605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// The number of designators in this initializer expression. 284705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor unsigned NumDesignators : 15; 284805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 2849ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor /// \brief The designators in this designated initialization 2850ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor /// expression. 2851ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor Designator *Designators; 2852ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor 285305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// The number of subexpressions of this initializer expression, 285405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// which contains both the initializer and any additional 285505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// expressions used by array and array-range designators. 285605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor unsigned NumSubExprs : 16; 285705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 2858ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor 2859319d57f21600dd2c4d52ccc27bd12ce260b174e7Douglas Gregor DesignatedInitExpr(ASTContext &C, QualType Ty, unsigned NumDesignators, 2860ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor const Designator *Designators, 2861eeae8f072748affce25ab4064982626361293390Douglas Gregor SourceLocation EqualOrColonLoc, bool GNUSyntax, 28629ea62768fca25d829d80199cf4f8cf0f4dd39251Douglas Gregor Expr **IndexExprs, unsigned NumIndexExprs, 28639ea62768fca25d829d80199cf4f8cf0f4dd39251Douglas Gregor Expr *Init); 286405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 2865d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor explicit DesignatedInitExpr(unsigned NumSubExprs) 2866d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor : Expr(DesignatedInitExprClass, EmptyShell()), 2867d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor NumDesignators(0), Designators(0), NumSubExprs(NumSubExprs) { } 2868d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor 286942602bb40aefcc2751d4078ba88aacf4d965c9bdDouglas Gregorprotected: 28701eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump virtual void DoDestroy(ASTContext &C); 287142602bb40aefcc2751d4078ba88aacf4d965c9bdDouglas Gregor 2872319d57f21600dd2c4d52ccc27bd12ce260b174e7Douglas Gregor void DestroyDesignators(ASTContext &C); 2873c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 287405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregorpublic: 287505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// A field designator, e.g., ".x". 287605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor struct FieldDesignator { 287705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// Refers to the field that is being initialized. The low bit 287805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// of this field determines whether this is actually a pointer 287905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// to an IdentifierInfo (if 1) or a FieldDecl (if 0). When 288005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// initially constructed, a field designator will store an 288105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// IdentifierInfo*. After semantic analysis has resolved that 288205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// name, the field designator will instead store a FieldDecl*. 288305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor uintptr_t NameOrField; 28841eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 288505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// The location of the '.' in the designated initializer. 288605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor unsigned DotLoc; 28871eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 288805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// The location of the field name in the designated initializer. 288905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor unsigned FieldLoc; 289005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor }; 289105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 289205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// An array or GNU array-range designator, e.g., "[9]" or "[10..15]". 289305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor struct ArrayOrRangeDesignator { 289405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// Location of the first index expression within the designated 289505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// initializer expression's list of subexpressions. 289605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor unsigned Index; 289705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// The location of the '[' starting the array range designator. 289805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor unsigned LBracketLoc; 289905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// The location of the ellipsis separating the start and end 290005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// indices. Only valid for GNU array-range designators. 290105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor unsigned EllipsisLoc; 290205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// The location of the ']' terminating the array range designator. 29031eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump unsigned RBracketLoc; 290405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor }; 290505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 290605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// @brief Represents a single C99 designator. 290705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// 290805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// @todo This class is infuriatingly similar to clang::Designator, 290905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// but minor differences (storing indices vs. storing pointers) 291005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// keep us from reusing it. Try harder, later, to rectify these 291105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// differences. 291205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor class Designator { 291305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// @brief The kind of designator this describes. 291405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor enum { 291505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor FieldDesignator, 291605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor ArrayDesignator, 291705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor ArrayRangeDesignator 291805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } Kind; 291905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 292005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor union { 292105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// A field designator, e.g., ".x". 292205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor struct FieldDesignator Field; 292305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// An array or GNU array-range designator, e.g., "[9]" or "[10..15]". 292405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor struct ArrayOrRangeDesignator ArrayOrRange; 292505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor }; 292605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor friend class DesignatedInitExpr; 292705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 292805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor public: 2929ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor Designator() {} 2930ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor 293105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// @brief Initializes a field designator. 29321eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump Designator(const IdentifierInfo *FieldName, SourceLocation DotLoc, 29331eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump SourceLocation FieldLoc) 293405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor : Kind(FieldDesignator) { 293505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor Field.NameOrField = reinterpret_cast<uintptr_t>(FieldName) | 0x01; 293605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor Field.DotLoc = DotLoc.getRawEncoding(); 293705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor Field.FieldLoc = FieldLoc.getRawEncoding(); 293805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } 293905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 294005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// @brief Initializes an array designator. 29411eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump Designator(unsigned Index, SourceLocation LBracketLoc, 294205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor SourceLocation RBracketLoc) 294305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor : Kind(ArrayDesignator) { 294405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor ArrayOrRange.Index = Index; 294505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor ArrayOrRange.LBracketLoc = LBracketLoc.getRawEncoding(); 294605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor ArrayOrRange.EllipsisLoc = SourceLocation().getRawEncoding(); 294705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor ArrayOrRange.RBracketLoc = RBracketLoc.getRawEncoding(); 294805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } 294905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 295005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// @brief Initializes a GNU array-range designator. 29511eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump Designator(unsigned Index, SourceLocation LBracketLoc, 295205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor SourceLocation EllipsisLoc, SourceLocation RBracketLoc) 295305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor : Kind(ArrayRangeDesignator) { 295405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor ArrayOrRange.Index = Index; 295505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor ArrayOrRange.LBracketLoc = LBracketLoc.getRawEncoding(); 295605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor ArrayOrRange.EllipsisLoc = EllipsisLoc.getRawEncoding(); 295705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor ArrayOrRange.RBracketLoc = RBracketLoc.getRawEncoding(); 295805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } 295905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 296005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor bool isFieldDesignator() const { return Kind == FieldDesignator; } 296105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor bool isArrayDesignator() const { return Kind == ArrayDesignator; } 296205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor bool isArrayRangeDesignator() const { return Kind == ArrayRangeDesignator; } 296305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 296405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor IdentifierInfo * getFieldName(); 296505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 296605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor FieldDecl *getField() { 296705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor assert(Kind == FieldDesignator && "Only valid on a field designator"); 296805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor if (Field.NameOrField & 0x01) 296905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor return 0; 297005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor else 297105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor return reinterpret_cast<FieldDecl *>(Field.NameOrField); 297205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } 297305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 297405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor void setField(FieldDecl *FD) { 297505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor assert(Kind == FieldDesignator && "Only valid on a field designator"); 297605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor Field.NameOrField = reinterpret_cast<uintptr_t>(FD); 297705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } 297805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 297987f55cf59e82f246d8605733e9300d0c5f6830a6Douglas Gregor SourceLocation getDotLoc() const { 298087f55cf59e82f246d8605733e9300d0c5f6830a6Douglas Gregor assert(Kind == FieldDesignator && "Only valid on a field designator"); 298187f55cf59e82f246d8605733e9300d0c5f6830a6Douglas Gregor return SourceLocation::getFromRawEncoding(Field.DotLoc); 298287f55cf59e82f246d8605733e9300d0c5f6830a6Douglas Gregor } 298387f55cf59e82f246d8605733e9300d0c5f6830a6Douglas Gregor 298405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor SourceLocation getFieldLoc() const { 298505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor assert(Kind == FieldDesignator && "Only valid on a field designator"); 298605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor return SourceLocation::getFromRawEncoding(Field.FieldLoc); 298705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } 298805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 298905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor SourceLocation getLBracketLoc() const { 299005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor assert((Kind == ArrayDesignator || Kind == ArrayRangeDesignator) && 299105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor "Only valid on an array or array-range designator"); 299205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor return SourceLocation::getFromRawEncoding(ArrayOrRange.LBracketLoc); 299305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } 299405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 299505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor SourceLocation getRBracketLoc() const { 299605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor assert((Kind == ArrayDesignator || Kind == ArrayRangeDesignator) && 299705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor "Only valid on an array or array-range designator"); 299805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor return SourceLocation::getFromRawEncoding(ArrayOrRange.RBracketLoc); 299905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } 300005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 300105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor SourceLocation getEllipsisLoc() const { 300205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor assert(Kind == ArrayRangeDesignator && 300305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor "Only valid on an array-range designator"); 300405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor return SourceLocation::getFromRawEncoding(ArrayOrRange.EllipsisLoc); 300505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } 30064c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor 3007d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor unsigned getFirstExprIndex() const { 3008d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor assert((Kind == ArrayDesignator || Kind == ArrayRangeDesignator) && 3009d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor "Only valid on an array or array-range designator"); 3010d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor return ArrayOrRange.Index; 3011d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor } 3012d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor 30134c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor SourceLocation getStartLocation() const { 30144c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor if (Kind == FieldDesignator) 30154c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor return getDotLoc().isInvalid()? getFieldLoc() : getDotLoc(); 30164c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor else 30174c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor return getLBracketLoc(); 30184c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor } 301905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor }; 302005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 30211eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static DesignatedInitExpr *Create(ASTContext &C, Designator *Designators, 302205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor unsigned NumDesignators, 302305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor Expr **IndexExprs, unsigned NumIndexExprs, 302405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor SourceLocation EqualOrColonLoc, 3025eeae8f072748affce25ab4064982626361293390Douglas Gregor bool GNUSyntax, Expr *Init); 302605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 3027d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor static DesignatedInitExpr *CreateEmpty(ASTContext &C, unsigned NumIndexExprs); 3028d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor 302905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// @brief Returns the number of designators in this initializer. 303005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor unsigned size() const { return NumDesignators; } 303105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 303205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor // Iterator access to the designators. 303305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor typedef Designator* designators_iterator; 3034ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor designators_iterator designators_begin() { return Designators; } 30351eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump designators_iterator designators_end() { 30361eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return Designators + NumDesignators; 3037ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor } 303805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 3039711997184366d584c9c437102cae1e9d9927b986Douglas Gregor Designator *getDesignator(unsigned Idx) { return &designators_begin()[Idx]; } 3040711997184366d584c9c437102cae1e9d9927b986Douglas Gregor 3041c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt void setDesignators(ASTContext &C, const Designator *Desigs, 3042319d57f21600dd2c4d52ccc27bd12ce260b174e7Douglas Gregor unsigned NumDesigs); 3043d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor 304405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor Expr *getArrayIndex(const Designator& D); 304505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor Expr *getArrayRangeStart(const Designator& D); 304605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor Expr *getArrayRangeEnd(const Designator& D); 304705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 304805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// @brief Retrieve the location of the '=' that precedes the 304905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// initializer value itself, if present. 305005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor SourceLocation getEqualOrColonLoc() const { return EqualOrColonLoc; } 3051d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor void setEqualOrColonLoc(SourceLocation L) { EqualOrColonLoc = L; } 305205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 305305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// @brief Determines whether this designated initializer used the 3054eeae8f072748affce25ab4064982626361293390Douglas Gregor /// deprecated GNU syntax for designated initializers. 3055eeae8f072748affce25ab4064982626361293390Douglas Gregor bool usesGNUSyntax() const { return GNUSyntax; } 3056d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor void setGNUSyntax(bool GNU) { GNUSyntax = GNU; } 305705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 305805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// @brief Retrieve the initializer value. 30591eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump Expr *getInit() const { 306005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor return cast<Expr>(*const_cast<DesignatedInitExpr*>(this)->child_begin()); 306105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } 306205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 306305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor void setInit(Expr *init) { 306405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor *child_begin() = init; 306505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } 306605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 3067d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor /// \brief Retrieve the total number of subexpressions in this 3068d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor /// designated initializer expression, including the actual 3069d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor /// initialized value and any expressions that occur within array 3070d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor /// and array-range designators. 3071d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor unsigned getNumSubExprs() const { return NumSubExprs; } 3072d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor 3073d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor Expr *getSubExpr(unsigned Idx) { 3074d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor assert(Idx < NumSubExprs && "Subscript out of range"); 3075d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor char* Ptr = static_cast<char*>(static_cast<void *>(this)); 3076d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor Ptr += sizeof(DesignatedInitExpr); 3077d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor return reinterpret_cast<Expr**>(reinterpret_cast<void**>(Ptr))[Idx]; 3078d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor } 3079d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor 3080d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor void setSubExpr(unsigned Idx, Expr *E) { 3081d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor assert(Idx < NumSubExprs && "Subscript out of range"); 3082d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor char* Ptr = static_cast<char*>(static_cast<void *>(this)); 3083d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor Ptr += sizeof(DesignatedInitExpr); 3084d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor reinterpret_cast<Expr**>(reinterpret_cast<void**>(Ptr))[Idx] = E; 3085d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor } 3086d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor 3087ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor /// \brief Replaces the designator at index @p Idx with the series 3088ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor /// of designators in [First, Last). 3089319d57f21600dd2c4d52ccc27bd12ce260b174e7Douglas Gregor void ExpandDesignator(ASTContext &C, unsigned Idx, const Designator *First, 3090ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor const Designator *Last); 3091ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor 309205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor virtual SourceRange getSourceRange() const; 309305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 309405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor static bool classof(const Stmt *T) { 30951eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == DesignatedInitExprClass; 309605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } 309705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor static bool classof(const DesignatedInitExpr *) { return true; } 309805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 309905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor // Iterators 310005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor virtual child_iterator child_begin(); 31011eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump virtual child_iterator child_end(); 31023498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor}; 31033498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor 31043498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor/// \brief Represents an implicitly-generated value initialization of 31053498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor/// an object of a given type. 31063498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor/// 31071a51b4a11b7db25cac2134249711ecaaf9d1c0a8Douglas Gregor/// Implicit value initializations occur within semantic initializer 31081a51b4a11b7db25cac2134249711ecaaf9d1c0a8Douglas Gregor/// list expressions (InitListExpr) as placeholders for subobject 31093498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor/// initializations not explicitly specified by the user. 31101a51b4a11b7db25cac2134249711ecaaf9d1c0a8Douglas Gregor/// 31111a51b4a11b7db25cac2134249711ecaaf9d1c0a8Douglas Gregor/// \see InitListExpr 31121eb4433ac451dc16f4133a88af2d002ac26c58efMike Stumpclass ImplicitValueInitExpr : public Expr { 31133498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregorpublic: 31141eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump explicit ImplicitValueInitExpr(QualType ty) 31152333f7727f97018d6742e1e0938133bcfad967abEli Friedman : Expr(ImplicitValueInitExprClass, ty, false, false) { } 31163498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor 3117d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor /// \brief Construct an empty implicit value initialization. 3118d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor explicit ImplicitValueInitExpr(EmptyShell Empty) 3119d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor : Expr(ImplicitValueInitExprClass, Empty) { } 3120d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor 31211eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 31223498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor return T->getStmtClass() == ImplicitValueInitExprClass; 31233498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor } 31243498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor static bool classof(const ImplicitValueInitExpr *) { return true; } 31253498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor 31263498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor virtual SourceRange getSourceRange() const { 31273498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor return SourceRange(); 31283498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor } 31293498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor 31303498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor // Iterators 31313498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor virtual child_iterator child_begin(); 31321eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump virtual child_iterator child_end(); 313305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor}; 313405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 31352ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman 31362ef13e5abef0570a9f567b4671367275c05d4d34Nate Begemanclass ParenListExpr : public Expr { 31372ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman Stmt **Exprs; 31382ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman unsigned NumExprs; 31392ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman SourceLocation LParenLoc, RParenLoc; 31402ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman 31411eb4433ac451dc16f4133a88af2d002ac26c58efMike Stumpprotected: 31422ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman virtual void DoDestroy(ASTContext& C); 31431eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 31442ef13e5abef0570a9f567b4671367275c05d4d34Nate Begemanpublic: 31451eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump ParenListExpr(ASTContext& C, SourceLocation lparenloc, Expr **exprs, 31462ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman unsigned numexprs, SourceLocation rparenloc); 31472ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman 31482ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman ~ParenListExpr() {} 31492ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman 31502ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman /// \brief Build an empty paren list. 31512ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman //explicit ParenListExpr(EmptyShell Empty) : Expr(ParenListExprClass, Empty) { } 31521eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 31532ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman unsigned getNumExprs() const { return NumExprs; } 31541eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 31551eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump const Expr* getExpr(unsigned Init) const { 31562ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman assert(Init < getNumExprs() && "Initializer access out of range!"); 31572ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman return cast_or_null<Expr>(Exprs[Init]); 31582ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman } 31591eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 31601eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump Expr* getExpr(unsigned Init) { 31612ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman assert(Init < getNumExprs() && "Initializer access out of range!"); 31622ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman return cast_or_null<Expr>(Exprs[Init]); 31632ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman } 31642ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman 316583ddad3ab513f5d73698cf9fbeb4ed3f011bc3b9Douglas Gregor Expr **getExprs() { return reinterpret_cast<Expr **>(Exprs); } 31661eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 31672ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman SourceLocation getLParenLoc() const { return LParenLoc; } 31682ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman SourceLocation getRParenLoc() const { return RParenLoc; } 31692ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman 31702ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman virtual SourceRange getSourceRange() const { 31712ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman return SourceRange(LParenLoc, RParenLoc); 31721eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump } 31732ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman static bool classof(const Stmt *T) { 31741eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == ParenListExprClass; 31752ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman } 31762ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman static bool classof(const ParenListExpr *) { return true; } 31771eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 31782ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman // Iterators 31792ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman virtual child_iterator child_begin(); 31802ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman virtual child_iterator child_end(); 31812ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman}; 31822ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman 31831eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 31844eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff//===----------------------------------------------------------------------===// 31854eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff// Clang Extensions 31864eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff//===----------------------------------------------------------------------===// 31874eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff 3188a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner 3189a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner/// ExtVectorElementExpr - This represents access to specific elements of a 3190a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner/// vector, and may occur on the left hand side or right hand side. For example 3191a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner/// the following is legal: "V.xy = V.zw" if V is a 4 element extended vector. 3192a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner/// 319373525de7fd9bdd534382dc89a24f1f76db3e04b9Chris Lattner/// Note that the base may have either vector or pointer to vector type, just 319473525de7fd9bdd534382dc89a24f1f76db3e04b9Chris Lattner/// like a struct field reference. 319573525de7fd9bdd534382dc89a24f1f76db3e04b9Chris Lattner/// 3196a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattnerclass ExtVectorElementExpr : public Expr { 3197a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner Stmt *Base; 3198d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor IdentifierInfo *Accessor; 3199a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner SourceLocation AccessorLoc; 3200a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattnerpublic: 3201a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner ExtVectorElementExpr(QualType ty, Expr *base, IdentifierInfo &accessor, 3202a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner SourceLocation loc) 32032333f7727f97018d6742e1e0938133bcfad967abEli Friedman : Expr(ExtVectorElementExprClass, ty, base->isTypeDependent(), 32042333f7727f97018d6742e1e0938133bcfad967abEli Friedman base->isValueDependent()), 3205d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor Base(base), Accessor(&accessor), AccessorLoc(loc) {} 32061eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3207d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor /// \brief Build an empty vector element expression. 3208d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor explicit ExtVectorElementExpr(EmptyShell Empty) 3209d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor : Expr(ExtVectorElementExprClass, Empty) { } 3210d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor 3211a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner const Expr *getBase() const { return cast<Expr>(Base); } 3212a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner Expr *getBase() { return cast<Expr>(Base); } 3213d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor void setBase(Expr *E) { Base = E; } 3214d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor 3215d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor IdentifierInfo &getAccessor() const { return *Accessor; } 3216d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor void setAccessor(IdentifierInfo *II) { Accessor = II; } 3217d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor 3218d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor SourceLocation getAccessorLoc() const { return AccessorLoc; } 3219d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor void setAccessorLoc(SourceLocation L) { AccessorLoc = L; } 3220d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor 3221a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner /// getNumElements - Get the number of components being selected. 3222a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner unsigned getNumElements() const; 32231eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3224a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner /// containsDuplicateElements - Return true if any element access is 3225a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner /// repeated. 3226a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner bool containsDuplicateElements() const; 32271eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3228a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner /// getEncodedElementAccess - Encode the elements accessed into an llvm 3229a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner /// aggregate Constant of ConstantInt(s). 3230a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner void getEncodedElementAccess(llvm::SmallVectorImpl<unsigned> &Elts) const; 32311eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3232a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner virtual SourceRange getSourceRange() const { 3233a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner return SourceRange(getBase()->getLocStart(), AccessorLoc); 3234a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner } 32351eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 32362140e904dbe53657339cb5b1cc13de563ca0d1fcChris Lattner /// isArrow - Return true if the base expression is a pointer to vector, 32372140e904dbe53657339cb5b1cc13de563ca0d1fcChris Lattner /// return false if the base expression is a vector. 32382140e904dbe53657339cb5b1cc13de563ca0d1fcChris Lattner bool isArrow() const; 32391eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 32401eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 32411eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == ExtVectorElementExprClass; 3242a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner } 3243a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner static bool classof(const ExtVectorElementExpr *) { return true; } 32441eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3245a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner // Iterators 3246a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner virtual child_iterator child_begin(); 3247a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner virtual child_iterator child_end(); 3248a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner}; 3249a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner 3250a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner 325156ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroff/// BlockExpr - Adaptor class for mixing a BlockDecl with expressions. 32529c3c902835ef7d37300463ad47176ec21a67dc8bSteve Naroff/// ^{ statement-body } or ^(int arg1, float arg2){ statement-body } 32534eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroffclass BlockExpr : public Expr { 325456ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroffprotected: 325556ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroff BlockDecl *TheBlock; 3256b83d287bc7f47d36fb0751a481e2ef9308b37252Mike Stump bool HasBlockDeclRefExprs; 32574eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroffpublic: 3258b83d287bc7f47d36fb0751a481e2ef9308b37252Mike Stump BlockExpr(BlockDecl *BD, QualType ty, bool hasBlockDeclRefExprs) 32592333f7727f97018d6742e1e0938133bcfad967abEli Friedman : Expr(BlockExprClass, ty, ty->isDependentType(), false), 3260b83d287bc7f47d36fb0751a481e2ef9308b37252Mike Stump TheBlock(BD), HasBlockDeclRefExprs(hasBlockDeclRefExprs) {} 32619c3c902835ef7d37300463ad47176ec21a67dc8bSteve Naroff 326284af7c27cdc615ff917a501d61256b4049383c97Douglas Gregor /// \brief Build an empty block expression. 326384af7c27cdc615ff917a501d61256b4049383c97Douglas Gregor explicit BlockExpr(EmptyShell Empty) : Expr(BlockExprClass, Empty) { } 326484af7c27cdc615ff917a501d61256b4049383c97Douglas Gregor 3265d5cab5435371b8cc74a9e05ebd40b5995ebad149Anders Carlsson const BlockDecl *getBlockDecl() const { return TheBlock; } 326656ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroff BlockDecl *getBlockDecl() { return TheBlock; } 326784af7c27cdc615ff917a501d61256b4049383c97Douglas Gregor void setBlockDecl(BlockDecl *BD) { TheBlock = BD; } 326884af7c27cdc615ff917a501d61256b4049383c97Douglas Gregor 326956ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroff // Convenience functions for probing the underlying BlockDecl. 327056ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroff SourceLocation getCaretLocation() const; 327156ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroff const Stmt *getBody() const; 327256ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroff Stmt *getBody(); 32739c3c902835ef7d37300463ad47176ec21a67dc8bSteve Naroff 32749c3c902835ef7d37300463ad47176ec21a67dc8bSteve Naroff virtual SourceRange getSourceRange() const { 327556ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroff return SourceRange(getCaretLocation(), getBody()->getLocEnd()); 32769c3c902835ef7d37300463ad47176ec21a67dc8bSteve Naroff } 32779c3c902835ef7d37300463ad47176ec21a67dc8bSteve Naroff 327856ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroff /// getFunctionType - Return the underlying function type for this block. 327956ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroff const FunctionType *getFunctionType() const; 328056ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroff 3281b83d287bc7f47d36fb0751a481e2ef9308b37252Mike Stump /// hasBlockDeclRefExprs - Return true iff the block has BlockDeclRefExpr 32825b54b88c4082bb81b8b341b622fda9a85cbd5fadChris Lattner /// inside of the block that reference values outside the block. 3283b83d287bc7f47d36fb0751a481e2ef9308b37252Mike Stump bool hasBlockDeclRefExprs() const { return HasBlockDeclRefExprs; } 328484af7c27cdc615ff917a501d61256b4049383c97Douglas Gregor void setHasBlockDeclRefExprs(bool BDRE) { HasBlockDeclRefExprs = BDRE; } 3285b83d287bc7f47d36fb0751a481e2ef9308b37252Mike Stump 32861eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 32879c3c902835ef7d37300463ad47176ec21a67dc8bSteve Naroff return T->getStmtClass() == BlockExprClass; 32884eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff } 32894eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff static bool classof(const BlockExpr *) { return true; } 32901eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 32914eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff // Iterators 32924eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff virtual child_iterator child_begin(); 32934eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff virtual child_iterator child_end(); 32944eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff}; 32951eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 32964eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff/// BlockDeclRefExpr - A reference to a declared variable, function, 32974eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff/// enum, etc. 32984eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroffclass BlockDeclRefExpr : public Expr { 32991eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump ValueDecl *D; 33004eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff SourceLocation Loc; 33017d5c74ecbbd8719436c071f38657bc8e97ee4a24Fariborz Jahanian bool IsByRef : 1; 33027d5c74ecbbd8719436c071f38657bc8e97ee4a24Fariborz Jahanian bool ConstQualAdded : 1; 33034eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroffpublic: 33042333f7727f97018d6742e1e0938133bcfad967abEli Friedman // FIXME: Fix type/value dependence! 33051eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump BlockDeclRefExpr(ValueDecl *d, QualType t, SourceLocation l, bool ByRef, 33062333f7727f97018d6742e1e0938133bcfad967abEli Friedman bool constAdded = false) 33072333f7727f97018d6742e1e0938133bcfad967abEli Friedman : Expr(BlockDeclRefExprClass, t, false, false), D(d), Loc(l), IsByRef(ByRef), 33082333f7727f97018d6742e1e0938133bcfad967abEli Friedman ConstQualAdded(constAdded) {} 330994cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor 331094cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor // \brief Build an empty reference to a declared variable in a 331194cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor // block. 331294cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor explicit BlockDeclRefExpr(EmptyShell Empty) 331394cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor : Expr(BlockDeclRefExprClass, Empty) { } 33141eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 33154eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff ValueDecl *getDecl() { return D; } 33164eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff const ValueDecl *getDecl() const { return D; } 331794cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor void setDecl(ValueDecl *VD) { D = VD; } 331894cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor 331994cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor SourceLocation getLocation() const { return Loc; } 332094cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor void setLocation(SourceLocation L) { Loc = L; } 332194cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor 33224eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff virtual SourceRange getSourceRange() const { return SourceRange(Loc); } 33231eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 33244eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff bool isByRef() const { return IsByRef; } 332594cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor void setByRef(bool BR) { IsByRef = BR; } 33261eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 33277d5c74ecbbd8719436c071f38657bc8e97ee4a24Fariborz Jahanian bool isConstQualAdded() const { return ConstQualAdded; } 33287d5c74ecbbd8719436c071f38657bc8e97ee4a24Fariborz Jahanian void setConstQualAdded(bool C) { ConstQualAdded = C; } 332994cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor 33301eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 33311eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == BlockDeclRefExprClass; 33324eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff } 33334eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff static bool classof(const BlockDeclRefExpr *) { return true; } 33341eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 33354eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff // Iterators 33364eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff virtual child_iterator child_begin(); 33374eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff virtual child_iterator child_end(); 33384eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff}; 33394eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff 33405f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} // end namespace clang 33415f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 33425f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer#endif 3343