Expr.h revision 2577743c5650c646fb705df01403707e94f2df04
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. 45f871d0cc377a1367b519a6cce26be74607566ebaJohn McCalltypedef llvm::SmallVector<CXXBaseSpecifier*, 4> CXXCastPath; 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 54bef0efd11bc4430a3ee437a3213cec5c18af855aChris Lattner virtual void ANCHOR(); // key function. 559ea62768fca25d829d80199cf4f8cf0f4dd39251Douglas Gregorprotected: 561eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /// TypeDependent - Whether this expression is type-dependent 57898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// (C++ [temp.dep.expr]). 58898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor bool TypeDependent : 1; 59898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor 601eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /// ValueDependent - Whether this expression is value-dependent 61898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// (C++ [temp.dep.constexpr]). 62898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor bool ValueDependent : 1; 63898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor 64f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall enum { BitsRemaining = 30 }; 65f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall 66898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor Expr(StmtClass SC, QualType T, bool TD, bool VD) 67b3eef68111ffc220e449be96da1747998c057790Douglas Gregor : Stmt(SC), TypeDependent(TD), ValueDependent(VD) { 68898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor setType(T); 69898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor } 70898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor 710b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor /// \brief Construct an empty expression. 720b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor explicit Expr(StmtClass SC, EmptyShell) : Stmt(SC) { } 730b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor 741eb4433ac451dc16f4133a88af2d002ac26c58efMike Stumppublic: 7543d9d9243329b1b75d1a6efdad9f16d6fb386b8eDouglas Gregor /// \brief Increases the reference count for this expression. 7643d9d9243329b1b75d1a6efdad9f16d6fb386b8eDouglas Gregor /// 7743d9d9243329b1b75d1a6efdad9f16d6fb386b8eDouglas Gregor /// Invoke the Retain() operation when this expression 7843d9d9243329b1b75d1a6efdad9f16d6fb386b8eDouglas Gregor /// is being shared by another owner. 7943d9d9243329b1b75d1a6efdad9f16d6fb386b8eDouglas Gregor Expr *Retain() { 8043d9d9243329b1b75d1a6efdad9f16d6fb386b8eDouglas Gregor Stmt::Retain(); 8143d9d9243329b1b75d1a6efdad9f16d6fb386b8eDouglas Gregor return this; 8243d9d9243329b1b75d1a6efdad9f16d6fb386b8eDouglas Gregor } 831eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 84f7c2aa0b049272d8f318988c1965760dcb852578Douglas Gregor QualType getType() const { return TR; } 851eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump void setType(QualType t) { 869d293dfc0ad7c44ae0b5eb9517f1ed8c8d8b7ff7Douglas Gregor // In C++, the type of an expression is always adjusted so that it 879d293dfc0ad7c44ae0b5eb9517f1ed8c8d8b7ff7Douglas Gregor // will not have reference type an expression will never have 889d293dfc0ad7c44ae0b5eb9517f1ed8c8d8b7ff7Douglas Gregor // reference type (C++ [expr]p6). Use 899d293dfc0ad7c44ae0b5eb9517f1ed8c8d8b7ff7Douglas Gregor // QualType::getNonReferenceType() to retrieve the non-reference 909d293dfc0ad7c44ae0b5eb9517f1ed8c8d8b7ff7Douglas Gregor // type. Additionally, inspect Expr::isLvalue to determine whether 919d293dfc0ad7c44ae0b5eb9517f1ed8c8d8b7ff7Douglas Gregor // an expression that is adjusted in this manner should be 929d293dfc0ad7c44ae0b5eb9517f1ed8c8d8b7ff7Douglas Gregor // considered an lvalue. 93905d11d53aeb6b26744f44fedc2b2820c7a62df6Douglas Gregor assert((t.isNull() || !t->isReferenceType()) && 948320aaaa01d931aa234fc3bce05b399ef41898d5Daniel Dunbar "Expressions can't have reference type"); 95f7c2aa0b049272d8f318988c1965760dcb852578Douglas Gregor 961eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump TR = t; 979d293dfc0ad7c44ae0b5eb9517f1ed8c8d8b7ff7Douglas Gregor } 9877ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek 99898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// isValueDependent - Determines whether this expression is 100898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// value-dependent (C++ [temp.dep.constexpr]). For example, the 101898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// array bound of "Chars" in the following example is 1021eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /// value-dependent. 103898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// @code 104898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// template<int Size, char (&Chars)[Size]> struct meta_string; 105898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// @endcode 106898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor bool isValueDependent() const { return ValueDependent; } 107898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor 1080b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor /// \brief Set whether this expression is value-dependent or not. 1090b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor void setValueDependent(bool VD) { ValueDependent = VD; } 1100b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor 111898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// isTypeDependent - Determines whether this expression is 112898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// type-dependent (C++ [temp.dep.expr]), which means that its type 113898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// could change from one template instantiation to the next. For 114898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// example, the expressions "x" and "x + y" are type-dependent in 115898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// the following code, but "y" is not type-dependent: 116898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// @code 1171eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /// template<typename T> 118898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// void add(T x, int y) { 119898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// x + y; 120898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// } 121898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// @endcode 122898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor bool isTypeDependent() const { return TypeDependent; } 123898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor 1240b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor /// \brief Set whether this expression is type-dependent or not. 1250b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor void setTypeDependent(bool TD) { TypeDependent = TD; } 1260b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor 1275f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// SourceLocation tokens are not useful in isolation - they are low level 1285f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// value objects created/interpreted by SourceManager. We assume AST 1295f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// clients will have a pointer to the respective SourceManager. 1305f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer virtual SourceRange getSourceRange() const = 0; 1315f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1325f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// getExprLoc - Return the preferred location for the arrow when diagnosing 1335f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// a problem with a generic expression. 1345f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer virtual SourceLocation getExprLoc() const { return getLocStart(); } 1351eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 136026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner /// isUnusedResultAWarning - Return true if this immediate expression should 137026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner /// be warned about if the result is unused. If so, fill in Loc and Ranges 138026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner /// with location to warn on and the source range[s] to report with the 139026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner /// warning. 140026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner bool isUnusedResultAWarning(SourceLocation &Loc, SourceRange &R1, 141df317bf71653eeb235da8337b1e8e790f9653aa4Mike Stump SourceRange &R2, ASTContext &Ctx) const; 1421eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1435f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// isLvalue - C99 6.3.2.1: an lvalue is an expression with an object type or 1445f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// incomplete type other than void. Nonarray expressions that can be lvalues: 1455f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// - name, where name must be a variable 1465f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// - e[i] 1475f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// - (e), where e must be an lvalue 1485f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// - e.name, where e must be an lvalue 1495f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// - e->name 1505f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// - *e, the type of e cannot be a function type 1515f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// - string-constant 15208ad47cbd1f81fcb31dbc731c13b885a07e12704Bill Wendling /// - reference type [C++ [expr]] 15376458501a8963fa11b91c9337a487de6871169b4Sebastian Redl /// - b ? x : y, where x and y are lvalues of suitable types [C++] 1545f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// 1555f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer enum isLvalueResult { 1565f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer LV_Valid, 1575f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer LV_NotObjectType, 1585f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer LV_IncompleteVoidType, 159fec0b49c3fa621fbf63e420f3d54a5bb3a0265d2Steve Naroff LV_DuplicateVectorComponents, 16086f194083504938df72135b5b66bf0c5cafd9498Douglas Gregor LV_InvalidExpression, 1612514a309204341798f96912ce7a90841bea59727Fariborz Jahanian LV_MemberFunction, 162e9ff443040cb571ae2c5c2626c4dc9a9a812d84aFariborz Jahanian LV_SubObjCPropertySetting, 163e873fb74219f48407ae0b8fa083aa7f0b6ff1427Douglas Gregor LV_ClassTemporary 1645f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer }; 16528be73f74c9e241a23ea24fe5756623de6bf1084Chris Lattner isLvalueResult isLvalue(ASTContext &Ctx) const; 16653202857c60214d80950a975e6e52aebf30bd16aEli Friedman 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 1962111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl /// \brief The return type of classify(). Represents the C++0x expression 1972111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl /// taxonomy. 1982111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl class Classification { 1992111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl public: 2002111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl /// \brief The various classification results. Most of these mean prvalue. 2012111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl enum Kinds { 2022111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl CL_LValue, 2032111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl CL_XValue, 2042111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl CL_Function, // Functions cannot be lvalues in C. 2052111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl CL_Void, // Void cannot be an lvalue in C. 2062111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl CL_DuplicateVectorComponents, // A vector shuffle with dupes. 2072111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl CL_MemberFunction, // An expression referring to a member function 2082111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl CL_SubObjCPropertySetting, 2092111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl CL_ClassTemporary, // A prvalue of class type 2102111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl CL_PRValue // A prvalue for any other reason, of any other type 2112111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl }; 2122111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl /// \brief The results of modification testing. 2132111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl enum ModifiableType { 2142111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl CM_Untested, // testModifiable was false. 2152111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl CM_Modifiable, 2162111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl CM_RValue, // Not modifiable because it's an rvalue 2172111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl CM_Function, // Not modifiable because it's a function; C++ only 2182111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl CM_LValueCast, // Same as CM_RValue, but indicates GCC cast-as-lvalue ext 2192111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl CM_NotBlockQualified, // Not captured in the closure 2202111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl CM_NoSetterProperty,// Implicit assignment to ObjC property without setter 2212111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl CM_ConstQualified, 2222111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl CM_ArrayType, 2232111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl CM_IncompleteType 2242111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl }; 2252111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl 2262111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl private: 2272111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl friend class Expr; 2282111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl 2292111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl unsigned short Kind; 2302111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl unsigned short Modifiable; 2312111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl 2322111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl explicit Classification(Kinds k, ModifiableType m) 2332111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl : Kind(k), Modifiable(m) 2342111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl {} 2352111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl 2362111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl public: 2372111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl Classification() {} 2382111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl 2392111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl Kinds getKind() const { return static_cast<Kinds>(Kind); } 2402111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl ModifiableType getModifiable() const { 2412111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl assert(Modifiable != CM_Untested && "Did not test for modifiability."); 2422111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl return static_cast<ModifiableType>(Modifiable); 2432111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl } 2442111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl bool isLValue() const { return Kind == CL_LValue; } 2452111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl bool isXValue() const { return Kind == CL_XValue; } 2462111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl bool isGLValue() const { return Kind <= CL_XValue; } 2472111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl bool isPRValue() const { return Kind >= CL_Function; } 2482111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl bool isRValue() const { return Kind >= CL_XValue; } 2492111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl bool isModifiable() const { return getModifiable() == CM_Modifiable; } 2502111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl }; 2512111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl /// \brief classify - Classify this expression according to the C++0x 2522111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl /// expression taxonomy. 2532111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl /// 2542111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl /// C++0x defines ([basic.lval]) a new taxonomy of expressions to replace the 2552111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl /// old lvalue vs rvalue. This function determines the type of expression this 2562111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl /// is. There are three expression types: 2572111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl /// - lvalues are classical lvalues as in C++03. 2582111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl /// - prvalues are equivalent to rvalues in C++03. 2592111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl /// - xvalues are expressions yielding unnamed rvalue references, e.g. a 2602111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl /// function returning an rvalue reference. 2612111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl /// lvalues and xvalues are collectively referred to as glvalues, while 2622111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl /// prvalues and xvalues together form rvalues. 2632111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl Classification Classify(ASTContext &Ctx) const { 2642111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl return ClassifyImpl(Ctx, 0); 2652111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl } 2662111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl 2672111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl /// \brief classifyModifiable - Classify this expression according to the 2682111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl /// C++0x expression taxonomy, and see if it is valid on the left side 2692111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl /// of an assignment. 2702111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl /// 2712111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl /// This function extends classify in that it also tests whether the 2722111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl /// expression is modifiable (C99 6.3.2.1p1). 2732111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl /// \param Loc A source location that might be filled with a relevant location 2742111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl /// if the expression is not modifiable. 2752111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl Classification ClassifyModifiable(ASTContext &Ctx, SourceLocation &Loc) const{ 2762111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl return ClassifyImpl(Ctx, &Loc); 2772111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl } 2782111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl 2792111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redlprivate: 2802111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl Classification ClassifyImpl(ASTContext &Ctx, SourceLocation *Loc) const; 2812111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl 2822111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redlpublic: 2832111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl 28433bbbc5ec8269bc2cde5b84f970fa49319a30267Douglas Gregor /// \brief If this expression refers to a bit-field, retrieve the 28533bbbc5ec8269bc2cde5b84f970fa49319a30267Douglas Gregor /// declaration of that bit-field. 28633bbbc5ec8269bc2cde5b84f970fa49319a30267Douglas Gregor FieldDecl *getBitField(); 2875f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 28838d068e8f13a119b89a3b8b0f79f35cab1ffd09aAnders Carlsson const FieldDecl *getBitField() const { 28938d068e8f13a119b89a3b8b0f79f35cab1ffd09aAnders Carlsson return const_cast<Expr*>(this)->getBitField(); 29038d068e8f13a119b89a3b8b0f79f35cab1ffd09aAnders Carlsson } 2911eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 292093802675b1548f2a5f44c29938d65cce00d58bbAnders Carlsson /// \brief Returns whether this expression refers to a vector element. 293093802675b1548f2a5f44c29938d65cce00d58bbAnders Carlsson bool refersToVectorElement() const; 294c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 2952b334bb3126a67895813e49e6228dad4aec0b4d6Chris Lattner /// isKnownToHaveBooleanValue - Return true if this is an integer expression 2962b334bb3126a67895813e49e6228dad4aec0b4d6Chris Lattner /// that is known to return 0 or 1. This happens for _Bool/bool expressions 2972b334bb3126a67895813e49e6228dad4aec0b4d6Chris Lattner /// but also int expressions which are produced by things like comparisons in 2982b334bb3126a67895813e49e6228dad4aec0b4d6Chris Lattner /// C. 2992b334bb3126a67895813e49e6228dad4aec0b4d6Chris Lattner bool isKnownToHaveBooleanValue() const; 300c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 3015f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// isIntegerConstantExpr - Return true if this expression is a valid integer 3025f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// constant expression, and, if so, return its value in Result. If not a 3035f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// valid i-c-e, return false and fill in Loc (if specified) with the location 3045f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// of the invalid expression. 305590b6646ef747d2f7b42e5f40487ff07642d7b6fChris Lattner bool isIntegerConstantExpr(llvm::APSInt &Result, ASTContext &Ctx, 306590b6646ef747d2f7b42e5f40487ff07642d7b6fChris Lattner SourceLocation *Loc = 0, 3075f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool isEvaluated = true) const; 308590b6646ef747d2f7b42e5f40487ff07642d7b6fChris Lattner bool isIntegerConstantExpr(ASTContext &Ctx, SourceLocation *Loc = 0) const { 3098070a8497c0fb3e6f70a557f788405d8945b1208Daniel Dunbar llvm::APSInt X; 310590b6646ef747d2f7b42e5f40487ff07642d7b6fChris Lattner return isIntegerConstantExpr(X, Ctx, Loc); 3115f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 312c9e8f606787b0bc0c3b08e566b87cc1751694168Eli Friedman /// isConstantInitializer - Returns true if this expression is a constant 313c9e8f606787b0bc0c3b08e566b87cc1751694168Eli Friedman /// initializer, which can be emitted at compile-time. 3144204f07fc8bffe6d320b2de95fea274ccf37a17bJohn McCall bool isConstantInitializer(ASTContext &Ctx, bool ForRef) const; 3151eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 31694deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson /// EvalResult is a struct with detailed info about an evaluated expression. 31794deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson struct EvalResult { 3182d6744ff04c1690a1485178d550d2fab84a0270bDaniel Dunbar /// Val - This is the value the expression can be folded to. 31994deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson APValue Val; 3201eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 32194deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson /// HasSideEffects - Whether the evaluated expression has side effects. 32294deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson /// For example, (f() && 0) can be folded, but it still has side effects. 32394deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson bool HasSideEffects; 3241eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 32594deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson /// Diag - If the expression is unfoldable, then Diag contains a note 32694deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson /// diagnostic indicating why it's not foldable. DiagLoc indicates a caret 32794deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson /// position for the error, and DiagExpr is the expression that caused 32894deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson /// the error. 32994deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson /// If the expression is foldable, but not an integer constant expression, 33094deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson /// Diag contains a note diagnostic that describes why it isn't an integer 33194deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson /// constant expression. If the expression *is* an integer constant 33294deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson /// expression, then Diag will be zero. 33394deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson unsigned Diag; 33494deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson const Expr *DiagExpr; 33594deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson SourceLocation DiagLoc; 3361eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 33794deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson EvalResult() : HasSideEffects(false), Diag(0), DiagExpr(0) {} 338e17a6436b429e4b18a5e157061fb13bbc677b3b0Abramo Bagnara 339e17a6436b429e4b18a5e157061fb13bbc677b3b0Abramo Bagnara // isGlobalLValue - Return true if the evaluated lvalue expression 340e17a6436b429e4b18a5e157061fb13bbc677b3b0Abramo Bagnara // is global. 341e17a6436b429e4b18a5e157061fb13bbc677b3b0Abramo Bagnara bool isGlobalLValue() const; 342e17a6436b429e4b18a5e157061fb13bbc677b3b0Abramo Bagnara // hasSideEffects - Return true if the evaluated expression has 343e17a6436b429e4b18a5e157061fb13bbc677b3b0Abramo Bagnara // side effects. 344e17a6436b429e4b18a5e157061fb13bbc677b3b0Abramo Bagnara bool hasSideEffects() const { 345e17a6436b429e4b18a5e157061fb13bbc677b3b0Abramo Bagnara return HasSideEffects; 346e17a6436b429e4b18a5e157061fb13bbc677b3b0Abramo Bagnara } 34794deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson }; 34894deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson 3496ee7aa154e8bbb21a21254293410b944f78b0bfeChris Lattner /// Evaluate - Return true if this is a constant which we can fold using 350019f4e858e78587f2241ff1a76c747d7bcd7578cChris Lattner /// any crazy technique (that has nothing to do with language standards) that 351019f4e858e78587f2241ff1a76c747d7bcd7578cChris Lattner /// we want to. If this function returns true, it returns the folded constant 352019f4e858e78587f2241ff1a76c747d7bcd7578cChris Lattner /// in Result. 3535b45d4ef1ea3f04ec863daf8aa29be6c6e021750Anders Carlsson bool Evaluate(EvalResult &Result, ASTContext &Ctx) const; 3545b45d4ef1ea3f04ec863daf8aa29be6c6e021750Anders Carlsson 355cd7a445c6b46c5585580dfb652300c8483c0cb6bJohn McCall /// EvaluateAsBooleanCondition - Return true if this is a constant 356cd7a445c6b46c5585580dfb652300c8483c0cb6bJohn McCall /// which we we can fold and convert to a boolean condition using 357cd7a445c6b46c5585580dfb652300c8483c0cb6bJohn McCall /// any crazy technique that we want to. 358cd7a445c6b46c5585580dfb652300c8483c0cb6bJohn McCall bool EvaluateAsBooleanCondition(bool &Result, ASTContext &Ctx) const; 359cd7a445c6b46c5585580dfb652300c8483c0cb6bJohn McCall 3606ee7aa154e8bbb21a21254293410b944f78b0bfeChris Lattner /// isEvaluatable - Call Evaluate to see if this expression can be constant 36145b6b9d080ac56917337d73d8f1cd6374b27b05dChris Lattner /// folded, but discard the result. 36245b6b9d080ac56917337d73d8f1cd6374b27b05dChris Lattner bool isEvaluatable(ASTContext &Ctx) const; 363c44eec6dd29ee9415cbd38a35deff4c8b67abb6aAnders Carlsson 3646ddf4784a22b994b954ed74c6061d4603d474639Fariborz Jahanian /// HasSideEffects - This routine returns true for all those expressions 365c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt /// which must be evaluated each time and must not be optimization away 3666ddf4784a22b994b954ed74c6061d4603d474639Fariborz Jahanian /// or evaluated at compile time. Example is a function call, volatile 3676ddf4784a22b994b954ed74c6061d4603d474639Fariborz Jahanian /// variable read. 368393c247fe025ccb5f914e37e948192ea86faef8cFariborz Jahanian bool HasSideEffects(ASTContext &Ctx) const; 369c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 37051fe996231b1d7199f76e4005ff4c943d5deeecdAnders Carlsson /// EvaluateAsInt - Call Evaluate and return the folded integer. This 37151fe996231b1d7199f76e4005ff4c943d5deeecdAnders Carlsson /// must be called on an expression that constant folds to an integer. 37251fe996231b1d7199f76e4005ff4c943d5deeecdAnders Carlsson llvm::APSInt EvaluateAsInt(ASTContext &Ctx) const; 37351fe996231b1d7199f76e4005ff4c943d5deeecdAnders Carlsson 374b2f295c8050fb8c141bf2cf38eed0a56e99d0092Eli Friedman /// EvaluateAsLValue - Evaluate an expression to see if it's a lvalue 375b2f295c8050fb8c141bf2cf38eed0a56e99d0092Eli Friedman /// with link time known address. 3761b78276a75a5a0f496a82429c1ff9604d622a76dAnders Carlsson bool EvaluateAsLValue(EvalResult &Result, ASTContext &Ctx) const; 3771b78276a75a5a0f496a82429c1ff9604d622a76dAnders Carlsson 378e17a6436b429e4b18a5e157061fb13bbc677b3b0Abramo Bagnara /// EvaluateAsLValue - Evaluate an expression to see if it's a lvalue. 379e17a6436b429e4b18a5e157061fb13bbc677b3b0Abramo Bagnara bool EvaluateAsAnyLValue(EvalResult &Result, ASTContext &Ctx) const; 380e17a6436b429e4b18a5e157061fb13bbc677b3b0Abramo Bagnara 381ce94049b69f75b44c18584fe79cd238978b6b0d5Douglas Gregor /// \brief Enumeration used to describe how \c isNullPointerConstant() 382ce94049b69f75b44c18584fe79cd238978b6b0d5Douglas Gregor /// should cope with value-dependent expressions. 383ce94049b69f75b44c18584fe79cd238978b6b0d5Douglas Gregor enum NullPointerConstantValueDependence { 384ce94049b69f75b44c18584fe79cd238978b6b0d5Douglas Gregor /// \brief Specifies that the expression should never be value-dependent. 385ce94049b69f75b44c18584fe79cd238978b6b0d5Douglas Gregor NPC_NeverValueDependent = 0, 386c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 387ce94049b69f75b44c18584fe79cd238978b6b0d5Douglas Gregor /// \brief Specifies that a value-dependent expression of integral or 388ce94049b69f75b44c18584fe79cd238978b6b0d5Douglas Gregor /// dependent type should be considered a null pointer constant. 389ce94049b69f75b44c18584fe79cd238978b6b0d5Douglas Gregor NPC_ValueDependentIsNull, 390c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 391ce94049b69f75b44c18584fe79cd238978b6b0d5Douglas Gregor /// \brief Specifies that a value-dependent expression should be considered 392ce94049b69f75b44c18584fe79cd238978b6b0d5Douglas Gregor /// to never be a null pointer constant. 393ce94049b69f75b44c18584fe79cd238978b6b0d5Douglas Gregor NPC_ValueDependentIsNotNull 394ce94049b69f75b44c18584fe79cd238978b6b0d5Douglas Gregor }; 395c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 396efa9b3877ef298bcb792600ac33521827e1f7fafAnders Carlsson /// isNullPointerConstant - C99 6.3.2.3p3 - Return true if this is either an 397efa9b3877ef298bcb792600ac33521827e1f7fafAnders Carlsson /// integer constant expression with the value zero, or if this is one that is 398efa9b3877ef298bcb792600ac33521827e1f7fafAnders Carlsson /// cast to void*. 399ce94049b69f75b44c18584fe79cd238978b6b0d5Douglas Gregor bool isNullPointerConstant(ASTContext &Ctx, 400ce94049b69f75b44c18584fe79cd238978b6b0d5Douglas Gregor NullPointerConstantValueDependence NPC) const; 401efa9b3877ef298bcb792600ac33521827e1f7fafAnders Carlsson 40244baa8abba2a1552b6b50bf750a8750ab9da9f76Fariborz Jahanian /// isOBJCGCCandidate - Return true if this expression may be used in a read/ 4031eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /// write barrier. 404102e390bcb5a1fb1a8fdbc8505e6dfd905374bbdFariborz Jahanian bool isOBJCGCCandidate(ASTContext &Ctx) const; 4051eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4064e99a5fc3b203397a91136c6e695e405fb8fc606Ted Kremenek /// IgnoreParens - Ignore parentheses. If this Expr is a ParenExpr, return 4071eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /// its subexpression. If that subexpression is also a ParenExpr, 4084e99a5fc3b203397a91136c6e695e405fb8fc606Ted Kremenek /// then this method recursively returns its subexpression, and so forth. 4094e99a5fc3b203397a91136c6e695e405fb8fc606Ted Kremenek /// Otherwise, the method returns the current Expr. 4102b334bb3126a67895813e49e6228dad4aec0b4d6Chris Lattner Expr *IgnoreParens(); 41156f349400c5932a196509c0480ff6f99a9a0b48fChris Lattner 41256f349400c5932a196509c0480ff6f99a9a0b48fChris Lattner /// IgnoreParenCasts - Ignore parentheses and casts. Strip off any ParenExpr 41327c8dc06f65d7abcf6a7e7f64a7960c9a150ca01Douglas Gregor /// or CastExprs, returning their operand. 41456f349400c5932a196509c0480ff6f99a9a0b48fChris Lattner Expr *IgnoreParenCasts(); 4151eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4162fc46bf1a9bc31d50f82de37c70ea257d3cded27John McCall /// IgnoreParenImpCasts - Ignore parentheses and implicit casts. Strip off any 4172fc46bf1a9bc31d50f82de37c70ea257d3cded27John McCall /// ParenExpr or ImplicitCastExprs, returning their operand. 4182fc46bf1a9bc31d50f82de37c70ea257d3cded27John McCall Expr *IgnoreParenImpCasts(); 4192fc46bf1a9bc31d50f82de37c70ea257d3cded27John McCall 420ecdd84147c0765caa999ddc22dde25b42712bb4dChris Lattner /// IgnoreParenNoopCasts - Ignore parentheses and casts that do not change the 421ecdd84147c0765caa999ddc22dde25b42712bb4dChris Lattner /// value (including ptr->int casts of the same size). Strip off any 422ecdd84147c0765caa999ddc22dde25b42712bb4dChris Lattner /// ParenExpr or CastExprs, returning their operand. 423ecdd84147c0765caa999ddc22dde25b42712bb4dChris Lattner Expr *IgnoreParenNoopCasts(ASTContext &Ctx); 4241eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4256eef519fc8a97bb7ca6066f23d35e10f06b2c1b5Douglas Gregor /// \brief Determine whether this expression is a default function argument. 4266eef519fc8a97bb7ca6066f23d35e10f06b2c1b5Douglas Gregor /// 4276eef519fc8a97bb7ca6066f23d35e10f06b2c1b5Douglas Gregor /// Default arguments are implicitly generated in the abstract syntax tree 428c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt /// by semantic analysis for function calls, object constructions, etc. in 4296eef519fc8a97bb7ca6066f23d35e10f06b2c1b5Douglas Gregor /// C++. Default arguments are represented by \c CXXDefaultArgExpr nodes; 4306eef519fc8a97bb7ca6066f23d35e10f06b2c1b5Douglas Gregor /// this routine also looks through any implicit casts to determine whether 4316eef519fc8a97bb7ca6066f23d35e10f06b2c1b5Douglas Gregor /// the expression is a default argument. 4326eef519fc8a97bb7ca6066f23d35e10f06b2c1b5Douglas Gregor bool isDefaultArgument() const; 433c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 4342f59979a7cc7929f53c9984423b0abeb83113442Douglas Gregor /// \brief Determine whether this expression directly creates a 4352f59979a7cc7929f53c9984423b0abeb83113442Douglas Gregor /// temporary object (of class type). 4362f59979a7cc7929f53c9984423b0abeb83113442Douglas Gregor bool isTemporaryObject() const { return getTemporaryObject() != 0; } 4372f59979a7cc7929f53c9984423b0abeb83113442Douglas Gregor 4382f59979a7cc7929f53c9984423b0abeb83113442Douglas Gregor /// \brief If this expression directly creates a temporary object of 4392f59979a7cc7929f53c9984423b0abeb83113442Douglas Gregor /// class type, return the expression that actually constructs that 4402f59979a7cc7929f53c9984423b0abeb83113442Douglas Gregor /// temporary object. 4412f59979a7cc7929f53c9984423b0abeb83113442Douglas Gregor const Expr *getTemporaryObject() const; 4422f59979a7cc7929f53c9984423b0abeb83113442Douglas Gregor 4432b334bb3126a67895813e49e6228dad4aec0b4d6Chris Lattner const Expr *IgnoreParens() const { 4444e99a5fc3b203397a91136c6e695e405fb8fc606Ted Kremenek return const_cast<Expr*>(this)->IgnoreParens(); 4454e99a5fc3b203397a91136c6e695e405fb8fc606Ted Kremenek } 44656f349400c5932a196509c0480ff6f99a9a0b48fChris Lattner const Expr *IgnoreParenCasts() const { 44756f349400c5932a196509c0480ff6f99a9a0b48fChris Lattner return const_cast<Expr*>(this)->IgnoreParenCasts(); 44856f349400c5932a196509c0480ff6f99a9a0b48fChris Lattner } 449ecdd84147c0765caa999ddc22dde25b42712bb4dChris Lattner const Expr *IgnoreParenNoopCasts(ASTContext &Ctx) const { 450ecdd84147c0765caa999ddc22dde25b42712bb4dChris Lattner return const_cast<Expr*>(this)->IgnoreParenNoopCasts(Ctx); 451ecdd84147c0765caa999ddc22dde25b42712bb4dChris Lattner } 4521eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 453898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor static bool hasAnyTypeDependentArguments(Expr** Exprs, unsigned NumExprs); 454898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor static bool hasAnyValueDependentArguments(Expr** Exprs, unsigned NumExprs); 455898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor 4561eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 4575f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return T->getStmtClass() >= firstExprConstant && 4581eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump T->getStmtClass() <= lastExprConstant; 4595f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 4605f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const Expr *) { return true; } 4615f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 4625f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 4631eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4645549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek//===----------------------------------------------------------------------===// 4655f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// Primary Expressions. 4665f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer//===----------------------------------------------------------------------===// 4675f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 468a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor/// \brief Represents the qualifier that may precede a C++ name, e.g., the 469a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor/// "std::" in "std::sort". 470a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregorstruct NameQualifier { 471a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// \brief The nested name specifier. 472a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor NestedNameSpecifier *NNS; 473c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 474a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// \brief The source range covered by the nested name specifier. 475a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor SourceRange Range; 476a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor}; 477a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor 478a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor/// \brief Represents an explicit template argument list in C++, e.g., 479a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor/// the "<int>" in "sort<int>". 480a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregorstruct ExplicitTemplateArgumentList { 481a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// \brief The source location of the left angle bracket ('<'); 482a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor SourceLocation LAngleLoc; 483c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 484a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// \brief The source location of the right angle bracket ('>'); 485a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor SourceLocation RAngleLoc; 486c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 487a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// \brief The number of template arguments in TemplateArgs. 488a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// The actual template arguments (if any) are stored after the 489a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// ExplicitTemplateArgumentList structure. 490a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor unsigned NumTemplateArgs; 491c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 492a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// \brief Retrieve the template arguments 493833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall TemplateArgumentLoc *getTemplateArgs() { 494833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall return reinterpret_cast<TemplateArgumentLoc *> (this + 1); 495a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor } 496c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 497a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// \brief Retrieve the template arguments 498833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall const TemplateArgumentLoc *getTemplateArgs() const { 499833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall return reinterpret_cast<const TemplateArgumentLoc *> (this + 1); 500a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor } 501d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall 502d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall void initializeFrom(const TemplateArgumentListInfo &List); 503d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall void copyInto(TemplateArgumentListInfo &List) const; 5048dfbd8b252ba4e6cf4b7a3422f6ef0ca21312dfeArgyrios Kyrtzidis static std::size_t sizeFor(unsigned NumTemplateArgs); 505d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall static std::size_t sizeFor(const TemplateArgumentListInfo &List); 506a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor}; 507c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 5085f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// DeclRefExpr - [C99 6.5.1p2] - A reference to a declared variable, function, 5095f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// enum, etc. 5105f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass DeclRefExpr : public Expr { 511a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor enum { 512c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt // Flag on DecoratedD that specifies when this declaration reference 513a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor // expression has a C++ nested-name-specifier. 514a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor HasQualifierFlag = 0x01, 515c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt // Flag on DecoratedD that specifies when this declaration reference 516a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor // expression has an explicit C++ template argument list. 517a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor HasExplicitTemplateArgumentListFlag = 0x02 518a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor }; 519c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 520c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt // DecoratedD - The declaration that we are referencing, plus two bits to 521a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor // indicate whether (1) the declaration's name was explicitly qualified and 522c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt // (2) the declaration's name was followed by an explicit template 523a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor // argument list. 524dbd872f273a8dbf22e089b3def6c09f0a460965dJohn McCall llvm::PointerIntPair<ValueDecl *, 2> DecoratedD; 5252577743c5650c646fb705df01403707e94f2df04Abramo Bagnara 526a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor // Loc - The location of the declaration name itself. 5275f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation Loc; 5289e922b1663ecb95dc7eee03002fd66ed18fb3192Argyrios Kyrtzidis 5292577743c5650c646fb705df01403707e94f2df04Abramo Bagnara /// DNLoc - Provides source/type location info for the 5302577743c5650c646fb705df01403707e94f2df04Abramo Bagnara /// declaration name embedded in DecoratedD. 5312577743c5650c646fb705df01403707e94f2df04Abramo Bagnara DeclarationNameLoc DNLoc; 5322577743c5650c646fb705df01403707e94f2df04Abramo Bagnara 533a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// \brief Retrieve the qualifier that preceded the declaration name, if any. 534a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor NameQualifier *getNameQualifier() { 5352cf719c3c3d805f630dfc6b1255e52647820888eSebastian Redl if ((DecoratedD.getInt() & HasQualifierFlag) == 0) 536a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor return 0; 537c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 538a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor return reinterpret_cast<NameQualifier *> (this + 1); 539a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor } 540c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 541a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// \brief Retrieve the qualifier that preceded the member name, if any. 542a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor const NameQualifier *getNameQualifier() const { 543a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor return const_cast<DeclRefExpr *>(this)->getNameQualifier(); 544a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor } 545c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 546a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// \brief Retrieve the explicit template argument list that followed the 547a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// member template name, if any. 548a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor ExplicitTemplateArgumentList *getExplicitTemplateArgumentList() { 5492cf719c3c3d805f630dfc6b1255e52647820888eSebastian Redl if ((DecoratedD.getInt() & HasExplicitTemplateArgumentListFlag) == 0) 550a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor return 0; 551c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 5522cf719c3c3d805f630dfc6b1255e52647820888eSebastian Redl if ((DecoratedD.getInt() & HasQualifierFlag) == 0) 553a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor return reinterpret_cast<ExplicitTemplateArgumentList *>(this + 1); 554c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 555a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor return reinterpret_cast<ExplicitTemplateArgumentList *>( 556a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor getNameQualifier() + 1); 557a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor } 558c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 559a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// \brief Retrieve the explicit template argument list that followed the 560a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// member template name, if any. 561a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor const ExplicitTemplateArgumentList *getExplicitTemplateArgumentList() const { 562a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor return const_cast<DeclRefExpr *>(this)->getExplicitTemplateArgumentList(); 563a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor } 564c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 565a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor DeclRefExpr(NestedNameSpecifier *Qualifier, SourceRange QualifierRange, 566dbd872f273a8dbf22e089b3def6c09f0a460965dJohn McCall ValueDecl *D, SourceLocation NameLoc, 567d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall const TemplateArgumentListInfo *TemplateArgs, 5680da76df9218d7c27b471b0a4d83a5b29fe24e5b4Douglas Gregor QualType T); 569663e380d7b2de2bbf20e886e05371195bea9adc4Argyrios Kyrtzidis 5702577743c5650c646fb705df01403707e94f2df04Abramo Bagnara DeclRefExpr(NestedNameSpecifier *Qualifier, SourceRange QualifierRange, 5712577743c5650c646fb705df01403707e94f2df04Abramo Bagnara ValueDecl *D, const DeclarationNameInfo &NameInfo, 5722577743c5650c646fb705df01403707e94f2df04Abramo Bagnara const TemplateArgumentListInfo *TemplateArgs, 5732577743c5650c646fb705df01403707e94f2df04Abramo Bagnara QualType T); 5742577743c5650c646fb705df01403707e94f2df04Abramo Bagnara 575663e380d7b2de2bbf20e886e05371195bea9adc4Argyrios Kyrtzidis /// \brief Construct an empty declaration reference expression. 576663e380d7b2de2bbf20e886e05371195bea9adc4Argyrios Kyrtzidis explicit DeclRefExpr(EmptyShell Empty) 577663e380d7b2de2bbf20e886e05371195bea9adc4Argyrios Kyrtzidis : Expr(DeclRefExprClass, Empty) { } 578c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 5790da76df9218d7c27b471b0a4d83a5b29fe24e5b4Douglas Gregor /// \brief Computes the type- and value-dependence flags for this 5800da76df9218d7c27b471b0a4d83a5b29fe24e5b4Douglas Gregor /// declaration reference expression. 5810da76df9218d7c27b471b0a4d83a5b29fe24e5b4Douglas Gregor void computeDependence(); 5829e922b1663ecb95dc7eee03002fd66ed18fb3192Argyrios Kyrtzidis 5835f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 584dbd872f273a8dbf22e089b3def6c09f0a460965dJohn McCall DeclRefExpr(ValueDecl *d, QualType t, SourceLocation l) : 5850da76df9218d7c27b471b0a4d83a5b29fe24e5b4Douglas Gregor Expr(DeclRefExprClass, t, false, false), DecoratedD(d, 0), Loc(l) { 5860da76df9218d7c27b471b0a4d83a5b29fe24e5b4Douglas Gregor computeDependence(); 5870da76df9218d7c27b471b0a4d83a5b29fe24e5b4Douglas Gregor } 5881eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 589a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor static DeclRefExpr *Create(ASTContext &Context, 590a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor NestedNameSpecifier *Qualifier, 591a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor SourceRange QualifierRange, 592dbd872f273a8dbf22e089b3def6c09f0a460965dJohn McCall ValueDecl *D, 593a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor SourceLocation NameLoc, 5940da76df9218d7c27b471b0a4d83a5b29fe24e5b4Douglas Gregor QualType T, 5950da76df9218d7c27b471b0a4d83a5b29fe24e5b4Douglas Gregor const TemplateArgumentListInfo *TemplateArgs = 0); 596663e380d7b2de2bbf20e886e05371195bea9adc4Argyrios Kyrtzidis 5972577743c5650c646fb705df01403707e94f2df04Abramo Bagnara static DeclRefExpr *Create(ASTContext &Context, 5982577743c5650c646fb705df01403707e94f2df04Abramo Bagnara NestedNameSpecifier *Qualifier, 5992577743c5650c646fb705df01403707e94f2df04Abramo Bagnara SourceRange QualifierRange, 6002577743c5650c646fb705df01403707e94f2df04Abramo Bagnara ValueDecl *D, 6012577743c5650c646fb705df01403707e94f2df04Abramo Bagnara const DeclarationNameInfo &NameInfo, 6022577743c5650c646fb705df01403707e94f2df04Abramo Bagnara QualType T, 6032577743c5650c646fb705df01403707e94f2df04Abramo Bagnara const TemplateArgumentListInfo *TemplateArgs = 0); 6042577743c5650c646fb705df01403707e94f2df04Abramo Bagnara 605663e380d7b2de2bbf20e886e05371195bea9adc4Argyrios Kyrtzidis /// \brief Construct an empty declaration reference expression. 606663e380d7b2de2bbf20e886e05371195bea9adc4Argyrios Kyrtzidis static DeclRefExpr *CreateEmpty(ASTContext &Context, 607663e380d7b2de2bbf20e886e05371195bea9adc4Argyrios Kyrtzidis bool HasQualifier, unsigned NumTemplateArgs); 608c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 609dbd872f273a8dbf22e089b3def6c09f0a460965dJohn McCall ValueDecl *getDecl() { return DecoratedD.getPointer(); } 610dbd872f273a8dbf22e089b3def6c09f0a460965dJohn McCall const ValueDecl *getDecl() const { return DecoratedD.getPointer(); } 611dbd872f273a8dbf22e089b3def6c09f0a460965dJohn McCall void setDecl(ValueDecl *NewD) { DecoratedD.setPointer(NewD); } 612904eed3f6148758d39a2d3c88f3133274460d645Douglas Gregor 6132577743c5650c646fb705df01403707e94f2df04Abramo Bagnara DeclarationNameInfo getNameInfo() const { 6142577743c5650c646fb705df01403707e94f2df04Abramo Bagnara return DeclarationNameInfo(getDecl()->getDeclName(), Loc, DNLoc); 6152577743c5650c646fb705df01403707e94f2df04Abramo Bagnara } 6162577743c5650c646fb705df01403707e94f2df04Abramo Bagnara 6179e922b1663ecb95dc7eee03002fd66ed18fb3192Argyrios Kyrtzidis SourceLocation getLocation() const { return Loc; } 6180b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor void setLocation(SourceLocation L) { Loc = L; } 619a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor virtual SourceRange getSourceRange() const; 6201eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 621a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// \brief Determine whether this declaration reference was preceded by a 622a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// C++ nested-name-specifier, e.g., \c N::foo. 623a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor bool hasQualifier() const { return DecoratedD.getInt() & HasQualifierFlag; } 624c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 625a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// \brief If the name was qualified, retrieves the source range of 626a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// the nested-name-specifier that precedes the name. Otherwise, 627a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// returns an empty source range. 628a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor SourceRange getQualifierRange() const { 629a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor if (!hasQualifier()) 630a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor return SourceRange(); 631c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 632a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor return getNameQualifier()->Range; 633a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor } 634c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 635c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt /// \brief If the name was qualified, retrieves the nested-name-specifier 636a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// that precedes the name. Otherwise, returns NULL. 637a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor NestedNameSpecifier *getQualifier() const { 638a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor if (!hasQualifier()) 639a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor return 0; 640c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 641a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor return getNameQualifier()->NNS; 642a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor } 643c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 644a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// \brief Determines whether this member expression actually had a C++ 645a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// template argument list explicitly specified, e.g., x.f<int>. 646a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor bool hasExplicitTemplateArgumentList() const { 647a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor return DecoratedD.getInt() & HasExplicitTemplateArgumentListFlag; 648a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor } 649d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall 650d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall /// \brief Copies the template arguments (if present) into the given 651d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall /// structure. 652d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall void copyTemplateArgumentsInto(TemplateArgumentListInfo &List) const { 653d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall if (hasExplicitTemplateArgumentList()) 654d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall getExplicitTemplateArgumentList()->copyInto(List); 655d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall } 656c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 657a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// \brief Retrieve the location of the left angle bracket following the 658a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// member name ('<'), if any. 659a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor SourceLocation getLAngleLoc() const { 660a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor if (!hasExplicitTemplateArgumentList()) 661a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor return SourceLocation(); 662c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 663a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor return getExplicitTemplateArgumentList()->LAngleLoc; 664a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor } 665c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 666a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// \brief Retrieve the template arguments provided as part of this 667a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// template-id. 668833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall const TemplateArgumentLoc *getTemplateArgs() const { 669a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor if (!hasExplicitTemplateArgumentList()) 670a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor return 0; 671c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 672a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor return getExplicitTemplateArgumentList()->getTemplateArgs(); 673a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor } 674c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 675a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// \brief Retrieve the number of template arguments provided as part of this 676a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// template-id. 677a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor unsigned getNumTemplateArgs() const { 678a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor if (!hasExplicitTemplateArgumentList()) 679a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor return 0; 680c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 681a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor return getExplicitTemplateArgumentList()->NumTemplateArgs; 682a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor } 683c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 684a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// \brief Retrieve the location of the right angle bracket following the 685a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// template arguments ('>'). 686a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor SourceLocation getRAngleLoc() const { 687a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor if (!hasExplicitTemplateArgumentList()) 688a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor return SourceLocation(); 689c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 690a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor return getExplicitTemplateArgumentList()->RAngleLoc; 691a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor } 692c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 6931eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 69499e9b4d172f6877e6ba5ebe75bb8238721f5e01cDouglas Gregor return T->getStmtClass() == DeclRefExprClass; 6955f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 6965f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const DeclRefExpr *) { return true; } 6971eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 69877ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek // Iterators 69977ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_begin(); 70077ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_end(); 701663e380d7b2de2bbf20e886e05371195bea9adc4Argyrios Kyrtzidis 702663e380d7b2de2bbf20e886e05371195bea9adc4Argyrios Kyrtzidis friend class PCHStmtReader; 703663e380d7b2de2bbf20e886e05371195bea9adc4Argyrios Kyrtzidis friend class PCHStmtWriter; 7045f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 7055f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 706d9f6910f4ef37c0e8eeee2a01287d9572c3176efChris Lattner/// PredefinedExpr - [C99 6.4.2.2] - A predefined identifier such as __func__. 707d9f6910f4ef37c0e8eeee2a01287d9572c3176efChris Lattnerclass PredefinedExpr : public Expr { 708227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlssonpublic: 709227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson enum IdentType { 710227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson Func, 711227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson Function, 712848fa64143fbe5ae62a601ad61277f741e54dfabAnders Carlsson PrettyFunction, 713848fa64143fbe5ae62a601ad61277f741e54dfabAnders Carlsson /// PrettyFunctionNoVirtual - The same as PrettyFunction, except that the 714848fa64143fbe5ae62a601ad61277f741e54dfabAnders Carlsson /// 'virtual' keyword is omitted for virtual member functions. 715848fa64143fbe5ae62a601ad61277f741e54dfabAnders Carlsson PrettyFunctionNoVirtual 716227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson }; 7171eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 718227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlssonprivate: 719227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson SourceLocation Loc; 720227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson IdentType Type; 721227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlssonpublic: 7221eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump PredefinedExpr(SourceLocation l, QualType type, IdentType IT) 723c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt : Expr(PredefinedExprClass, type, type->isDependentType(), 724773f3973cf5e2b6b8788e895967dcb3c1e6ffe79Anders Carlsson type->isDependentType()), Loc(l), Type(IT) {} 7251eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 72617fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor /// \brief Construct an empty predefined expression. 7271eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump explicit PredefinedExpr(EmptyShell Empty) 72817fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor : Expr(PredefinedExprClass, Empty) { } 72917fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor 730227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson IdentType getIdentType() const { return Type; } 73117fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor void setIdentType(IdentType IT) { Type = IT; } 73217fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor 73317fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor SourceLocation getLocation() const { return Loc; } 73417fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor void setLocation(SourceLocation L) { Loc = L; } 73517fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor 736848fa64143fbe5ae62a601ad61277f741e54dfabAnders Carlsson static std::string ComputeName(IdentType IT, const Decl *CurrentDecl); 7373a082d81006e7a2e01a6e431a22e21c78490ff8fAnders Carlsson 738227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson virtual SourceRange getSourceRange() const { return SourceRange(Loc); } 739227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson 7401eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 7411eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == PredefinedExprClass; 742227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson } 743d9f6910f4ef37c0e8eeee2a01287d9572c3176efChris Lattner static bool classof(const PredefinedExpr *) { return true; } 7441eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 74577ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek // Iterators 74677ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_begin(); 74777ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_end(); 748227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson}; 749227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson 7505f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass IntegerLiteral : public Expr { 7515f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::APInt Value; 7525f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation Loc; 7535f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 7541eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // type should be IntTy, LongTy, LongLongTy, UnsignedIntTy, UnsignedLongTy, 7555f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // or UnsignedLongLongTy 7565f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer IntegerLiteral(const llvm::APInt &V, QualType type, SourceLocation l) 7572333f7727f97018d6742e1e0938133bcfad967abEli Friedman : Expr(IntegerLiteralClass, type, false, false), Value(V), Loc(l) { 7585f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer assert(type->isIntegerType() && "Illegal type in IntegerLiteral"); 7595f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 760a135fb43eb94524a6529768596a4533eed9aa70dAnders Carlsson 7610b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor /// \brief Construct an empty integer literal. 7621eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump explicit IntegerLiteral(EmptyShell Empty) 7630b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor : Expr(IntegerLiteralClass, Empty) { } 7640b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor 7655f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer const llvm::APInt &getValue() const { return Value; } 7665f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer virtual SourceRange getSourceRange() const { return SourceRange(Loc); } 7675f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 768313a81dd820c9b2c0203bdcd974c781a81e4f0cfDouglas Gregor /// \brief Retrieve the location of the literal. 769313a81dd820c9b2c0203bdcd974c781a81e4f0cfDouglas Gregor SourceLocation getLocation() const { return Loc; } 770313a81dd820c9b2c0203bdcd974c781a81e4f0cfDouglas Gregor 7710b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor void setValue(const llvm::APInt &Val) { Value = Val; } 7720b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor void setLocation(SourceLocation Location) { Loc = Location; } 7730b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor 7741eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 7751eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == IntegerLiteralClass; 7765f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 7775f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const IntegerLiteral *) { return true; } 7781eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 77977ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek // Iterators 78077ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_begin(); 78177ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_end(); 7825f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 7835f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 7845f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass CharacterLiteral : public Expr { 7855f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer unsigned Value; 7865f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation Loc; 787c250aae4f645833aed3a6321bc8598f7330dce8dChris Lattner bool IsWide; 7885f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 7895f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // type should be IntTy 790c250aae4f645833aed3a6321bc8598f7330dce8dChris Lattner CharacterLiteral(unsigned value, bool iswide, QualType type, SourceLocation l) 7912333f7727f97018d6742e1e0938133bcfad967abEli Friedman : Expr(CharacterLiteralClass, type, false, false), Value(value), Loc(l), 7922333f7727f97018d6742e1e0938133bcfad967abEli Friedman IsWide(iswide) { 7935f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 7940b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor 7950b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor /// \brief Construct an empty character literal. 7960b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor CharacterLiteral(EmptyShell Empty) : Expr(CharacterLiteralClass, Empty) { } 7970b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor 798018d8e0596dd57401eeddcf11ac84ff0a065fbbeChris Lattner SourceLocation getLocation() const { return Loc; } 799c250aae4f645833aed3a6321bc8598f7330dce8dChris Lattner bool isWide() const { return IsWide; } 8001eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 8015f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer virtual SourceRange getSourceRange() const { return SourceRange(Loc); } 8021eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 8035f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer unsigned getValue() const { return Value; } 8045f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 8050b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor void setLocation(SourceLocation Location) { Loc = Location; } 8060b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor void setWide(bool W) { IsWide = W; } 8070b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor void setValue(unsigned Val) { Value = Val; } 8080b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor 8091eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 8101eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == CharacterLiteralClass; 8115f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 8125f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const CharacterLiteral *) { return true; } 81377ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek 81477ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek // Iterators 81577ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_begin(); 81677ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_end(); 8175f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 8185f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 8195f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass FloatingLiteral : public Expr { 820525a05093a4816af961fe2bc6b8a81c17e2e26c2Chris Lattner llvm::APFloat Value; 821720c4ec57b6110873cd533ad434853a27e7c3f4aTed Kremenek bool IsExact : 1; 8225f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation Loc; 8235f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 8241eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump FloatingLiteral(const llvm::APFloat &V, bool isexact, 825720c4ec57b6110873cd533ad434853a27e7c3f4aTed Kremenek QualType Type, SourceLocation L) 8262333f7727f97018d6742e1e0938133bcfad967abEli Friedman : Expr(FloatingLiteralClass, Type, false, false), Value(V), 8272333f7727f97018d6742e1e0938133bcfad967abEli Friedman IsExact(isexact), Loc(L) {} 8285f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 82917fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor /// \brief Construct an empty floating-point literal. 8301eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump explicit FloatingLiteral(EmptyShell Empty) 83117fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor : Expr(FloatingLiteralClass, Empty), Value(0.0) { } 83217fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor 833c9bec4bfea9090a08dd83a7b213f0c8adf8d78ecChris Lattner const llvm::APFloat &getValue() const { return Value; } 83417fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor void setValue(const llvm::APFloat &Val) { Value = Val; } 83517fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor 836720c4ec57b6110873cd533ad434853a27e7c3f4aTed Kremenek bool isExact() const { return IsExact; } 83717fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor void setExact(bool E) { IsExact = E; } 838c9bec4bfea9090a08dd83a7b213f0c8adf8d78ecChris Lattner 839da8249e57f3badecf925571881fe57243935c6c1Chris Lattner /// getValueAsApproximateDouble - This returns the value as an inaccurate 840da8249e57f3badecf925571881fe57243935c6c1Chris Lattner /// double. Note that this may cause loss of precision, but is useful for 841da8249e57f3badecf925571881fe57243935c6c1Chris Lattner /// debugging dumps, etc. 842da8249e57f3badecf925571881fe57243935c6c1Chris Lattner double getValueAsApproximateDouble() const; 8431eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 84417fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor SourceLocation getLocation() const { return Loc; } 84517fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor void setLocation(SourceLocation L) { Loc = L; } 84617fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor 8475f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer virtual SourceRange getSourceRange() const { return SourceRange(Loc); } 8485f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 8491eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 8501eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == FloatingLiteralClass; 8515f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 8525f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const FloatingLiteral *) { return true; } 8531eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 85477ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek // Iterators 85577ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_begin(); 85677ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_end(); 8575f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 8585f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 8595d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner/// ImaginaryLiteral - We support imaginary integer and floating point literals, 8605d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner/// like "1.0i". We represent these as a wrapper around FloatingLiteral and 8615d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner/// IntegerLiteral classes. Instances of this class always have a Complex type 8625d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner/// whose element type matches the subexpression. 8635d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner/// 8645d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattnerclass ImaginaryLiteral : public Expr { 8655549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Stmt *Val; 8665d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattnerpublic: 8675d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner ImaginaryLiteral(Expr *val, QualType Ty) 8682333f7727f97018d6742e1e0938133bcfad967abEli Friedman : Expr(ImaginaryLiteralClass, Ty, false, false), Val(val) {} 8691eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 870cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor /// \brief Build an empty imaginary literal. 8711eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump explicit ImaginaryLiteral(EmptyShell Empty) 872cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor : Expr(ImaginaryLiteralClass, Empty) { } 873cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor 8745549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek const Expr *getSubExpr() const { return cast<Expr>(Val); } 8755549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getSubExpr() { return cast<Expr>(Val); } 876cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor void setSubExpr(Expr *E) { Val = E; } 877cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor 8785d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner virtual SourceRange getSourceRange() const { return Val->getSourceRange(); } 8791eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 8801eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == ImaginaryLiteralClass; 8815d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner } 8825d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner static bool classof(const ImaginaryLiteral *) { return true; } 8831eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 8845d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner // Iterators 8855d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner virtual child_iterator child_begin(); 8865d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner virtual child_iterator child_end(); 8875d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner}; 8885d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner 889e6a82b2c29ad05534841e5f8fd033fb17b6f61e2Ted Kremenek/// StringLiteral - This represents a string literal expression, e.g. "foo" 890e6a82b2c29ad05534841e5f8fd033fb17b6f61e2Ted Kremenek/// or L"bar" (wide strings). The actual string is returned by getStrData() 891e6a82b2c29ad05534841e5f8fd033fb17b6f61e2Ted Kremenek/// is NOT null-terminated, and the length of the string is determined by 892a7ad98ff0919d6a24ea7c46634ea29bea551c1a0Chris Lattner/// calling getByteLength(). The C type for a string is always a 893c4a09c189981b4561428e4b56fd250718e2717bbChris Lattner/// ConstantArrayType. In C++, the char type is const qualified, in C it is 894c4a09c189981b4561428e4b56fd250718e2717bbChris Lattner/// not. 895690398188ea5b428f06aa13c7d4ce6eb741ad4f9Chris Lattner/// 896690398188ea5b428f06aa13c7d4ce6eb741ad4f9Chris Lattner/// Note that strings in C can be formed by concatenation of multiple string 8978bea7c0ee44c71c817de7dc2be932b73bec90c9fChris Lattner/// literal pptokens in translation phase #6. This keeps track of the locations 898690398188ea5b428f06aa13c7d4ce6eb741ad4f9Chris Lattner/// of each of these pieces. 899c4a09c189981b4561428e4b56fd250718e2717bbChris Lattner/// 900c4a09c189981b4561428e4b56fd250718e2717bbChris Lattner/// Strings in C can also be truncated and extended by assigning into arrays, 901c4a09c189981b4561428e4b56fd250718e2717bbChris Lattner/// e.g. with constructs like: 902c4a09c189981b4561428e4b56fd250718e2717bbChris Lattner/// char X[2] = "foobar"; 903c4a09c189981b4561428e4b56fd250718e2717bbChris Lattner/// In this case, getByteLength() will return 6, but the string literal will 904c4a09c189981b4561428e4b56fd250718e2717bbChris Lattner/// have type "char[2]". 9055f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass StringLiteral : public Expr { 9065f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer const char *StrData; 9075f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer unsigned ByteLength; 9085f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool IsWide; 909726e168dc09fb23f53c7b004f8e919421ee91806Chris Lattner unsigned NumConcatenated; 910726e168dc09fb23f53c7b004f8e919421ee91806Chris Lattner SourceLocation TokLocs[1]; 9112085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner 9122333f7727f97018d6742e1e0938133bcfad967abEli Friedman StringLiteral(QualType Ty) : Expr(StringLiteralClass, Ty, false, false) {} 9131eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 9145f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 9152085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner /// This is the "fully general" constructor that allows representation of 9162085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner /// strings formed from multiple concatenated tokens. 9172085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner static StringLiteral *Create(ASTContext &C, const char *StrData, 9182085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner unsigned ByteLength, bool Wide, QualType Ty, 919a135fb43eb94524a6529768596a4533eed9aa70dAnders Carlsson const SourceLocation *Loc, unsigned NumStrs); 9202085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner 9212085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner /// Simple constructor for string literals made from one token. 9221eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static StringLiteral *Create(ASTContext &C, const char *StrData, 9232085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner unsigned ByteLength, 9242085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner bool Wide, QualType Ty, SourceLocation Loc) { 9252085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner return Create(C, StrData, ByteLength, Wide, Ty, &Loc, 1); 9262085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner } 927a135fb43eb94524a6529768596a4533eed9aa70dAnders Carlsson 928673ecd6a4a9f7c12fb6f76f84f654dbdcdc89e76Douglas Gregor /// \brief Construct an empty string literal. 929673ecd6a4a9f7c12fb6f76f84f654dbdcdc89e76Douglas Gregor static StringLiteral *CreateEmpty(ASTContext &C, unsigned NumStrs); 930673ecd6a4a9f7c12fb6f76f84f654dbdcdc89e76Douglas Gregor 931b648023da23e8b227cdda57a241db4c6f368726bDaniel Dunbar llvm::StringRef getString() const { 932b648023da23e8b227cdda57a241db4c6f368726bDaniel Dunbar return llvm::StringRef(StrData, ByteLength); 933b648023da23e8b227cdda57a241db4c6f368726bDaniel Dunbar } 934b648023da23e8b227cdda57a241db4c6f368726bDaniel Dunbar // FIXME: These are deprecated, replace with StringRef. 9355f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer const char *getStrData() const { return StrData; } 9365f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer unsigned getByteLength() const { return ByteLength; } 937673ecd6a4a9f7c12fb6f76f84f654dbdcdc89e76Douglas Gregor 938673ecd6a4a9f7c12fb6f76f84f654dbdcdc89e76Douglas Gregor /// \brief Sets the string data to the given string data. 939b648023da23e8b227cdda57a241db4c6f368726bDaniel Dunbar void setString(ASTContext &C, llvm::StringRef Str); 940673ecd6a4a9f7c12fb6f76f84f654dbdcdc89e76Douglas Gregor 9415f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool isWide() const { return IsWide; } 942673ecd6a4a9f7c12fb6f76f84f654dbdcdc89e76Douglas Gregor void setWide(bool W) { IsWide = W; } 943673ecd6a4a9f7c12fb6f76f84f654dbdcdc89e76Douglas Gregor 9448d4141f83d9de379547cf05bd75d4c6cf894b189Steve Naroff bool containsNonAsciiOrNull() const { 945b648023da23e8b227cdda57a241db4c6f368726bDaniel Dunbar llvm::StringRef Str = getString(); 946b648023da23e8b227cdda57a241db4c6f368726bDaniel Dunbar for (unsigned i = 0, e = Str.size(); i != e; ++i) 947b648023da23e8b227cdda57a241db4c6f368726bDaniel Dunbar if (!isascii(Str[i]) || !Str[i]) 94833fdb738a6c125f4c788733897021b7c1a062b0cSteve Naroff return true; 94933fdb738a6c125f4c788733897021b7c1a062b0cSteve Naroff return false; 95033fdb738a6c125f4c788733897021b7c1a062b0cSteve Naroff } 951726e168dc09fb23f53c7b004f8e919421ee91806Chris Lattner /// getNumConcatenated - Get the number of string literal tokens that were 952726e168dc09fb23f53c7b004f8e919421ee91806Chris Lattner /// concatenated in translation phase #6 to form this string literal. 953726e168dc09fb23f53c7b004f8e919421ee91806Chris Lattner unsigned getNumConcatenated() const { return NumConcatenated; } 9541eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 955726e168dc09fb23f53c7b004f8e919421ee91806Chris Lattner SourceLocation getStrTokenLoc(unsigned TokNum) const { 956726e168dc09fb23f53c7b004f8e919421ee91806Chris Lattner assert(TokNum < NumConcatenated && "Invalid tok number"); 957726e168dc09fb23f53c7b004f8e919421ee91806Chris Lattner return TokLocs[TokNum]; 958726e168dc09fb23f53c7b004f8e919421ee91806Chris Lattner } 9591eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump void setStrTokenLoc(unsigned TokNum, SourceLocation L) { 960673ecd6a4a9f7c12fb6f76f84f654dbdcdc89e76Douglas Gregor assert(TokNum < NumConcatenated && "Invalid tok number"); 961673ecd6a4a9f7c12fb6f76f84f654dbdcdc89e76Douglas Gregor TokLocs[TokNum] = L; 962673ecd6a4a9f7c12fb6f76f84f654dbdcdc89e76Douglas Gregor } 963673ecd6a4a9f7c12fb6f76f84f654dbdcdc89e76Douglas Gregor 964b137299ce5bb6c36fbba651858600857fda4dd50Chris Lattner typedef const SourceLocation *tokloc_iterator; 965b137299ce5bb6c36fbba651858600857fda4dd50Chris Lattner tokloc_iterator tokloc_begin() const { return TokLocs; } 966b137299ce5bb6c36fbba651858600857fda4dd50Chris Lattner tokloc_iterator tokloc_end() const { return TokLocs+NumConcatenated; } 9675f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 9681eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump virtual SourceRange getSourceRange() const { 9691eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return SourceRange(TokLocs[0], TokLocs[NumConcatenated-1]); 9705f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 9711eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 9721eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == StringLiteralClass; 9735f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 9745f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const StringLiteral *) { return true; } 9751eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 97677ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek // Iterators 97777ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_begin(); 97877ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_end(); 9795f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 9805f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 9815f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// ParenExpr - This represents a parethesized expression, e.g. "(1)". This 9825f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// AST node is only formed if full location information is requested. 9835f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass ParenExpr : public Expr { 9845f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation L, R; 9855549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Stmt *Val; 9865f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 9875f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ParenExpr(SourceLocation l, SourceLocation r, Expr *val) 988898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor : Expr(ParenExprClass, val->getType(), 9891eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump val->isTypeDependent(), val->isValueDependent()), 990898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor L(l), R(r), Val(val) {} 9911eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 992c04db4feefa2b0dbbc6876cb4eeeee108aa6791dDouglas Gregor /// \brief Construct an empty parenthesized expression. 9931eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump explicit ParenExpr(EmptyShell Empty) 994c04db4feefa2b0dbbc6876cb4eeeee108aa6791dDouglas Gregor : Expr(ParenExprClass, Empty) { } 995c04db4feefa2b0dbbc6876cb4eeeee108aa6791dDouglas Gregor 9965549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek const Expr *getSubExpr() const { return cast<Expr>(Val); } 9975549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getSubExpr() { return cast<Expr>(Val); } 998c04db4feefa2b0dbbc6876cb4eeeee108aa6791dDouglas Gregor void setSubExpr(Expr *E) { Val = E; } 999c04db4feefa2b0dbbc6876cb4eeeee108aa6791dDouglas Gregor 1000866b5c03e3b9c01cf496ad97b85a05afc917345bTed Kremenek virtual SourceRange getSourceRange() const { return SourceRange(L, R); } 10015f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1002313a81dd820c9b2c0203bdcd974c781a81e4f0cfDouglas Gregor /// \brief Get the location of the left parentheses '('. 1003313a81dd820c9b2c0203bdcd974c781a81e4f0cfDouglas Gregor SourceLocation getLParen() const { return L; } 1004c04db4feefa2b0dbbc6876cb4eeeee108aa6791dDouglas Gregor void setLParen(SourceLocation Loc) { L = Loc; } 1005313a81dd820c9b2c0203bdcd974c781a81e4f0cfDouglas Gregor 1006313a81dd820c9b2c0203bdcd974c781a81e4f0cfDouglas Gregor /// \brief Get the location of the right parentheses ')'. 1007313a81dd820c9b2c0203bdcd974c781a81e4f0cfDouglas Gregor SourceLocation getRParen() const { return R; } 1008c04db4feefa2b0dbbc6876cb4eeeee108aa6791dDouglas Gregor void setRParen(SourceLocation Loc) { R = Loc; } 1009313a81dd820c9b2c0203bdcd974c781a81e4f0cfDouglas Gregor 10101eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 10111eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == ParenExprClass; 10125f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 10135f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const ParenExpr *) { return true; } 10141eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 101577ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek // Iterators 101677ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_begin(); 101777ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_end(); 10185f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 10195f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 10205f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 10210518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl/// UnaryOperator - This represents the unary-expression's (except sizeof and 10220518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl/// alignof), the postinc/postdec operators from postfix-expression, and various 10235f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// extensions. 1024dbb36971c68ea944ac4b1fbe2d97fe7cca3b20acChris Lattner/// 1025dbb36971c68ea944ac4b1fbe2d97fe7cca3b20acChris Lattner/// Notes on various nodes: 1026dbb36971c68ea944ac4b1fbe2d97fe7cca3b20acChris Lattner/// 1027dbb36971c68ea944ac4b1fbe2d97fe7cca3b20acChris Lattner/// Real/Imag - These return the real/imag part of a complex operand. If 1028dbb36971c68ea944ac4b1fbe2d97fe7cca3b20acChris Lattner/// applied to a non-complex value, the former returns its operand and the 1029dbb36971c68ea944ac4b1fbe2d97fe7cca3b20acChris Lattner/// later returns zero in the type of the operand. 1030dbb36971c68ea944ac4b1fbe2d97fe7cca3b20acChris Lattner/// 103173d0d4fac161ed12926e010dcf8b448a8de6a2ecChris Lattner/// __builtin_offsetof(type, a.b[10]) is represented as a unary operator whose 10321eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// subexpression is a compound literal with the various MemberExpr and 10338ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor/// ArraySubscriptExpr's applied to it. (This is only used in C) 103473d0d4fac161ed12926e010dcf8b448a8de6a2ecChris Lattner/// 10355f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass UnaryOperator : public Expr { 10365f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 103713d130c3d225cdb5b1e6d9e86cea12eea718c707Chris Lattner // Note that additions to this should also update the StmtVisitor class. 10385f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer enum Opcode { 10395f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer PostInc, PostDec, // [C99 6.5.2.4] Postfix increment and decrement operators 10405f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer PreInc, PreDec, // [C99 6.5.3.1] Prefix increment and decrement operators. 10415f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer AddrOf, Deref, // [C99 6.5.3.2] Address and indirection operators. 10425f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Plus, Minus, // [C99 6.5.3.3] Unary arithmetic operators. 10435f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Not, LNot, // [C99 6.5.3.3] Unary arithmetic operators. 10445f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Real, Imag, // "__real expr"/"__imag expr" Extension. 104573d0d4fac161ed12926e010dcf8b448a8de6a2ecChris Lattner Extension, // __extension__ marker. 104673d0d4fac161ed12926e010dcf8b448a8de6a2ecChris Lattner OffsetOf // __builtin_offsetof 10475f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer }; 10485f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerprivate: 10495549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Stmt *Val; 10505f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Opcode Opc; 10515f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation Loc; 10521eb4433ac451dc16f4133a88af2d002ac26c58efMike Stumppublic: 10535f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 10545f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer UnaryOperator(Expr *input, Opcode opc, QualType type, SourceLocation l) 10559103bb27f4eefa0e0d7935387750e3aca24abc49Douglas Gregor : Expr(UnaryOperatorClass, type, 1056e8a126ba9a8a2f53098d388d04ec555b758f0c67Eli Friedman opc != OffsetOf && (input->isTypeDependent() || 1057e8a126ba9a8a2f53098d388d04ec555b758f0c67Eli Friedman type->isDependentType()), 10581eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump input->isValueDependent()), 10599103bb27f4eefa0e0d7935387750e3aca24abc49Douglas Gregor Val(input), Opc(opc), Loc(l) {} 10605f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 10610b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor /// \brief Build an empty unary operator. 10621eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump explicit UnaryOperator(EmptyShell Empty) 10630b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor : Expr(UnaryOperatorClass, Empty), Opc(AddrOf) { } 10640b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor 10655f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Opcode getOpcode() const { return Opc; } 10660b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor void setOpcode(Opcode O) { Opc = O; } 10670b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor 10685549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getSubExpr() const { return cast<Expr>(Val); } 10690b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor void setSubExpr(Expr *E) { Val = E; } 10700b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor 10715f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// getOperatorLoc - Return the location of the operator. 10725f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation getOperatorLoc() const { return Loc; } 10730b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor void setOperatorLoc(SourceLocation L) { Loc = L; } 10740b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor 10755f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// isPostfix - Return true if this is a postfix operation, like x++. 10762085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner static bool isPostfix(Opcode Op) { 10772085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner return Op == PostInc || Op == PostDec; 10782085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner } 10795f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 10805a56ac30d04e8f0431a08980885662a47a6308aaTed Kremenek /// isPostfix - Return true if this is a prefix operation, like --x. 10812085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner static bool isPrefix(Opcode Op) { 10822085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner return Op == PreInc || Op == PreDec; 10832085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner } 10845a56ac30d04e8f0431a08980885662a47a6308aaTed Kremenek 10855a56ac30d04e8f0431a08980885662a47a6308aaTed Kremenek bool isPrefix() const { return isPrefix(Opc); } 10865f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool isPostfix() const { return isPostfix(Opc); } 10875d826b82936beb2c32dd02460332ba8035192c65Ted Kremenek bool isIncrementOp() const {return Opc==PreInc || Opc==PostInc; } 10885f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool isIncrementDecrementOp() const { return Opc>=PostInc && Opc<=PreDec; } 10895a1deb8d9c0722beae28d693fa137bbb942bd11fAnders Carlsson bool isOffsetOfOp() const { return Opc == OffsetOf; } 10905f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool isArithmeticOp(Opcode Op) { return Op >= Plus && Op <= LNot; } 10911eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump bool isArithmeticOp() const { return isArithmeticOp(Opc); } 10921eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 10935f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// getOpcodeStr - Turn an Opcode enum value into the punctuation char it 10945f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// corresponds to, e.g. "sizeof" or "[pre]++" 10955f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static const char *getOpcodeStr(Opcode Op); 10965f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1097bc736fceca6f0bca31d16003a7587857190408fbDouglas Gregor /// \brief Retrieve the unary opcode that corresponds to the given 1098bc736fceca6f0bca31d16003a7587857190408fbDouglas Gregor /// overloaded operator. 1099bc736fceca6f0bca31d16003a7587857190408fbDouglas Gregor static Opcode getOverloadedOpcode(OverloadedOperatorKind OO, bool Postfix); 1100bc736fceca6f0bca31d16003a7587857190408fbDouglas Gregor 1101bc736fceca6f0bca31d16003a7587857190408fbDouglas Gregor /// \brief Retrieve the overloaded operator kind that corresponds to 1102bc736fceca6f0bca31d16003a7587857190408fbDouglas Gregor /// the given unary opcode. 1103bc736fceca6f0bca31d16003a7587857190408fbDouglas Gregor static OverloadedOperatorKind getOverloadedOperator(Opcode Opc); 1104bc736fceca6f0bca31d16003a7587857190408fbDouglas Gregor 11055f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer virtual SourceRange getSourceRange() const { 11065f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (isPostfix()) 11075f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return SourceRange(Val->getLocStart(), Loc); 11085f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer else 11095f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return SourceRange(Loc, Val->getLocEnd()); 11105f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 11115f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer virtual SourceLocation getExprLoc() const { return Loc; } 11121eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 11131eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 11141eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == UnaryOperatorClass; 11155f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 11165f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const UnaryOperator *) { return true; } 11171eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 111877ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek // Iterators 111977ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_begin(); 112077ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_end(); 11215f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 11225f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 11238ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor/// OffsetOfExpr - [C99 7.17] - This represents an expression of the form 11248ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor/// offsetof(record-type, member-designator). For example, given: 11258ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor/// @code 11268ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor/// struct S { 11278ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor/// float f; 1128c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt/// double d; 11298ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor/// }; 11308ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor/// struct T { 11318ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor/// int i; 11328ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor/// struct S s[10]; 11338ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor/// }; 11348ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor/// @endcode 1135c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt/// we can represent and evaluate the expression @c offsetof(struct T, s[2].d). 11368ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor 11378ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregorclass OffsetOfExpr : public Expr { 11388ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregorpublic: 11398ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor // __builtin_offsetof(type, identifier(.identifier|[expr])*) 11408ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor class OffsetOfNode { 11418ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor public: 11428ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// \brief The kind of offsetof node we have. 11438ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor enum Kind { 1144cc8a5d5f90bbbbcb46f342117b851b7e07ec34f1Douglas Gregor /// \brief An index into an array. 11458ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor Array = 0x00, 1146cc8a5d5f90bbbbcb46f342117b851b7e07ec34f1Douglas Gregor /// \brief A field. 11478ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor Field = 0x01, 1148cc8a5d5f90bbbbcb46f342117b851b7e07ec34f1Douglas Gregor /// \brief A field in a dependent type, known only by its name. 1149cc8a5d5f90bbbbcb46f342117b851b7e07ec34f1Douglas Gregor Identifier = 0x02, 1150cc8a5d5f90bbbbcb46f342117b851b7e07ec34f1Douglas Gregor /// \brief An implicit indirection through a C++ base class, when the 1151cc8a5d5f90bbbbcb46f342117b851b7e07ec34f1Douglas Gregor /// field found is in a base class. 1152cc8a5d5f90bbbbcb46f342117b851b7e07ec34f1Douglas Gregor Base = 0x03 11538ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor }; 11548ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor 11558ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor private: 11568ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor enum { MaskBits = 2, Mask = 0x03 }; 1157c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 11588ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// \brief The source range that covers this part of the designator. 11598ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor SourceRange Range; 1160c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 11618ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// \brief The data describing the designator, which comes in three 11628ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// different forms, depending on the lower two bits. 1163c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt /// - An unsigned index into the array of Expr*'s stored after this node 11648ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// in memory, for [constant-expression] designators. 11658ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// - A FieldDecl*, for references to a known field. 11668ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// - An IdentifierInfo*, for references to a field with a given name 11678ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// when the class type is dependent. 1168c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt /// - A CXXBaseSpecifier*, for references that look at a field in a 1169cc8a5d5f90bbbbcb46f342117b851b7e07ec34f1Douglas Gregor /// base class. 11708ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor uintptr_t Data; 1171c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 11728ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor public: 11738ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// \brief Create an offsetof node that refers to an array element. 1174c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt OffsetOfNode(SourceLocation LBracketLoc, unsigned Index, 11758ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor SourceLocation RBracketLoc) 11768ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor : Range(LBracketLoc, RBracketLoc), Data((Index << 2) | Array) { } 1177c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 11788ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// \brief Create an offsetof node that refers to a field. 1179c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt OffsetOfNode(SourceLocation DotLoc, FieldDecl *Field, 11808ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor SourceLocation NameLoc) 1181c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt : Range(DotLoc.isValid()? DotLoc : NameLoc, NameLoc), 11828ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor Data(reinterpret_cast<uintptr_t>(Field) | OffsetOfNode::Field) { } 1183c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 11848ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// \brief Create an offsetof node that refers to an identifier. 11858ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor OffsetOfNode(SourceLocation DotLoc, IdentifierInfo *Name, 11868ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor SourceLocation NameLoc) 1187c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt : Range(DotLoc.isValid()? DotLoc : NameLoc, NameLoc), 11888ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor Data(reinterpret_cast<uintptr_t>(Name) | Identifier) { } 1189cc8a5d5f90bbbbcb46f342117b851b7e07ec34f1Douglas Gregor 1190cc8a5d5f90bbbbcb46f342117b851b7e07ec34f1Douglas Gregor /// \brief Create an offsetof node that refers into a C++ base class. 1191cc8a5d5f90bbbbcb46f342117b851b7e07ec34f1Douglas Gregor explicit OffsetOfNode(const CXXBaseSpecifier *Base) 1192cc8a5d5f90bbbbcb46f342117b851b7e07ec34f1Douglas Gregor : Range(), Data(reinterpret_cast<uintptr_t>(Base) | OffsetOfNode::Base) {} 1193c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 11948ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// \brief Determine what kind of offsetof node this is. 1195c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt Kind getKind() const { 11968ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor return static_cast<Kind>(Data & Mask); 11978ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor } 1198c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 11998ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// \brief For an array element node, returns the index into the array 12008ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// of expressions. 12018ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor unsigned getArrayExprIndex() const { 12028ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor assert(getKind() == Array); 12038ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor return Data >> 2; 12048ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor } 12058ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor 12068ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// \brief For a field offsetof node, returns the field. 12078ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor FieldDecl *getField() const { 12088ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor assert(getKind() == Field); 1209cc8a5d5f90bbbbcb46f342117b851b7e07ec34f1Douglas Gregor return reinterpret_cast<FieldDecl *>(Data & ~(uintptr_t)Mask); 12108ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor } 1211c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 12128ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// \brief For a field or identifier offsetof node, returns the name of 12138ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// the field. 12148ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor IdentifierInfo *getFieldName() const; 1215c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 1216cc8a5d5f90bbbbcb46f342117b851b7e07ec34f1Douglas Gregor /// \brief For a base class node, returns the base specifier. 1217cc8a5d5f90bbbbcb46f342117b851b7e07ec34f1Douglas Gregor CXXBaseSpecifier *getBase() const { 1218cc8a5d5f90bbbbcb46f342117b851b7e07ec34f1Douglas Gregor assert(getKind() == Base); 1219c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt return reinterpret_cast<CXXBaseSpecifier *>(Data & ~(uintptr_t)Mask); 1220cc8a5d5f90bbbbcb46f342117b851b7e07ec34f1Douglas Gregor } 1221c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 12228ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// \brief Retrieve the source range that covers this offsetof node. 12238ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// 12248ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// For an array element node, the source range contains the locations of 12258ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// the square brackets. For a field or identifier node, the source range 1226c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt /// contains the location of the period (if there is one) and the 12278ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// identifier. 12288ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor SourceRange getRange() const { return Range; } 12298ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor }; 12308ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor 12318ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregorprivate: 1232c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 12338ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor SourceLocation OperatorLoc, RParenLoc; 12348ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor // Base type; 12358ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor TypeSourceInfo *TSInfo; 12368ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor // Number of sub-components (i.e. instances of OffsetOfNode). 12378ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor unsigned NumComps; 12388ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor // Number of sub-expressions (i.e. array subscript expressions). 12398ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor unsigned NumExprs; 1240c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 1241c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt OffsetOfExpr(ASTContext &C, QualType type, 12428ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor SourceLocation OperatorLoc, TypeSourceInfo *tsi, 1243c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt OffsetOfNode* compsPtr, unsigned numComps, 12448ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor Expr** exprsPtr, unsigned numExprs, 12458ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor SourceLocation RParenLoc); 12468ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor 12478ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor explicit OffsetOfExpr(unsigned numComps, unsigned numExprs) 12488ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor : Expr(OffsetOfExprClass, EmptyShell()), 1249c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt TSInfo(0), NumComps(numComps), NumExprs(numExprs) {} 12508ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor 12518ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregorpublic: 1252c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 1253c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt static OffsetOfExpr *Create(ASTContext &C, QualType type, 1254c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt SourceLocation OperatorLoc, TypeSourceInfo *tsi, 1255c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt OffsetOfNode* compsPtr, unsigned numComps, 12568ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor Expr** exprsPtr, unsigned numExprs, 12578ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor SourceLocation RParenLoc); 12588ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor 1259c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt static OffsetOfExpr *CreateEmpty(ASTContext &C, 12608ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor unsigned NumComps, unsigned NumExprs); 12618ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor 12628ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// getOperatorLoc - Return the location of the operator. 12638ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor SourceLocation getOperatorLoc() const { return OperatorLoc; } 12648ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor void setOperatorLoc(SourceLocation L) { OperatorLoc = L; } 12658ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor 12668ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// \brief Return the location of the right parentheses. 12678ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor SourceLocation getRParenLoc() const { return RParenLoc; } 12688ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor void setRParenLoc(SourceLocation R) { RParenLoc = R; } 1269c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 12708ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor TypeSourceInfo *getTypeSourceInfo() const { 12718ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor return TSInfo; 12728ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor } 12738ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor void setTypeSourceInfo(TypeSourceInfo *tsi) { 12748ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor TSInfo = tsi; 12758ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor } 1276c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 12778ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor const OffsetOfNode &getComponent(unsigned Idx) { 12788ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor assert(Idx < NumComps && "Subscript out of range"); 12798ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor return reinterpret_cast<OffsetOfNode *> (this + 1)[Idx]; 12808ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor } 12818ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor 12828ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor void setComponent(unsigned Idx, OffsetOfNode ON) { 12838ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor assert(Idx < NumComps && "Subscript out of range"); 12848ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor reinterpret_cast<OffsetOfNode *> (this + 1)[Idx] = ON; 12858ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor } 1286c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 12878ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor unsigned getNumComponents() const { 12888ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor return NumComps; 12898ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor } 12908ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor 12918ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor Expr* getIndexExpr(unsigned Idx) { 12928ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor assert(Idx < NumExprs && "Subscript out of range"); 12938ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor return reinterpret_cast<Expr **>( 12948ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor reinterpret_cast<OffsetOfNode *>(this+1) + NumComps)[Idx]; 12958ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor } 12968ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor 12978ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor void setIndexExpr(unsigned Idx, Expr* E) { 12988ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor assert(Idx < NumComps && "Subscript out of range"); 12998ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor reinterpret_cast<Expr **>( 13008ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor reinterpret_cast<OffsetOfNode *>(this+1) + NumComps)[Idx] = E; 13018ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor } 1302c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 13038ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor unsigned getNumExpressions() const { 13048ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor return NumExprs; 13058ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor } 13068ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor 13078ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor virtual SourceRange getSourceRange() const { 13088ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor return SourceRange(OperatorLoc, RParenLoc); 13098ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor } 13108ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor 13118ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor static bool classof(const Stmt *T) { 13128ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor return T->getStmtClass() == OffsetOfExprClass; 13138ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor } 13148ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor 13158ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor static bool classof(const OffsetOfExpr *) { return true; } 13168ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor 13178ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor // Iterators 13188ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor virtual child_iterator child_begin(); 13198ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor virtual child_iterator child_end(); 13208ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor}; 13218ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor 13220518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl/// SizeOfAlignOfExpr - [C99 6.5.3.4] - This is for sizeof/alignof, both of 13230518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl/// types and expressions. 13240518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redlclass SizeOfAlignOfExpr : public Expr { 13250518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl bool isSizeof : 1; // true if sizeof, false if alignof. 13260518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl bool isType : 1; // true if operand is a type, false if an expression 1327d457589fc69dc7a9c80cd74d317c0b81a35a27c9Sebastian Redl union { 1328a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall TypeSourceInfo *Ty; 1329d457589fc69dc7a9c80cd74d317c0b81a35a27c9Sebastian Redl Stmt *Ex; 1330d457589fc69dc7a9c80cd74d317c0b81a35a27c9Sebastian Redl } Argument; 13315f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation OpLoc, RParenLoc; 133242602bb40aefcc2751d4078ba88aacf4d965c9bdDouglas Gregor 13335f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 1334a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall SizeOfAlignOfExpr(bool issizeof, TypeSourceInfo *TInfo, 13350518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl QualType resultType, SourceLocation op, 13360518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl SourceLocation rp) : 13372850784bda09416fc7e9d57f5baa36c9351c757cSebastian Redl Expr(SizeOfAlignOfExprClass, resultType, 1338ba49817c5b9f502602672861cf369fd0e53966e8Douglas Gregor false, // Never type-dependent (C++ [temp.dep.expr]p3). 13392850784bda09416fc7e9d57f5baa36c9351c757cSebastian Redl // Value-dependent if the argument is type-dependent. 1340a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall TInfo->getType()->isDependentType()), 1341ba49817c5b9f502602672861cf369fd0e53966e8Douglas Gregor isSizeof(issizeof), isType(true), OpLoc(op), RParenLoc(rp) { 1342a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall Argument.Ty = TInfo; 1343ba49817c5b9f502602672861cf369fd0e53966e8Douglas Gregor } 1344ba49817c5b9f502602672861cf369fd0e53966e8Douglas Gregor 13451eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump SizeOfAlignOfExpr(bool issizeof, Expr *E, 1346ba49817c5b9f502602672861cf369fd0e53966e8Douglas Gregor QualType resultType, SourceLocation op, 1347ba49817c5b9f502602672861cf369fd0e53966e8Douglas Gregor SourceLocation rp) : 1348ba49817c5b9f502602672861cf369fd0e53966e8Douglas Gregor Expr(SizeOfAlignOfExprClass, resultType, 1349ba49817c5b9f502602672861cf369fd0e53966e8Douglas Gregor false, // Never type-dependent (C++ [temp.dep.expr]p3). 1350ba49817c5b9f502602672861cf369fd0e53966e8Douglas Gregor // Value-dependent if the argument is type-dependent. 1351ba49817c5b9f502602672861cf369fd0e53966e8Douglas Gregor E->isTypeDependent()), 1352ba49817c5b9f502602672861cf369fd0e53966e8Douglas Gregor isSizeof(issizeof), isType(false), OpLoc(op), RParenLoc(rp) { 1353ba49817c5b9f502602672861cf369fd0e53966e8Douglas Gregor Argument.Ex = E; 1354d457589fc69dc7a9c80cd74d317c0b81a35a27c9Sebastian Redl } 13550518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl 13560b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor /// \brief Construct an empty sizeof/alignof expression. 13570b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor explicit SizeOfAlignOfExpr(EmptyShell Empty) 13580b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor : Expr(SizeOfAlignOfExprClass, Empty) { } 13590b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor 13605f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool isSizeOf() const { return isSizeof; } 13610b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor void setSizeof(bool S) { isSizeof = S; } 13620b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor 13630518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl bool isArgumentType() const { return isType; } 13640518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl QualType getArgumentType() const { 13655ab75172051a6d2ea71a80a79e81c65519fd3462John McCall return getArgumentTypeInfo()->getType(); 13665ab75172051a6d2ea71a80a79e81c65519fd3462John McCall } 1367a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall TypeSourceInfo *getArgumentTypeInfo() const { 13680518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl assert(isArgumentType() && "calling getArgumentType() when arg is expr"); 13695ab75172051a6d2ea71a80a79e81c65519fd3462John McCall return Argument.Ty; 13700518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl } 1371caae7b099a0324b7c15dc89a9b70969d5d7ce996Chris Lattner Expr *getArgumentExpr() { 13720518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl assert(!isArgumentType() && "calling getArgumentExpr() when arg is type"); 1373d457589fc69dc7a9c80cd74d317c0b81a35a27c9Sebastian Redl return static_cast<Expr*>(Argument.Ex); 13740518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl } 1375caae7b099a0324b7c15dc89a9b70969d5d7ce996Chris Lattner const Expr *getArgumentExpr() const { 1376caae7b099a0324b7c15dc89a9b70969d5d7ce996Chris Lattner return const_cast<SizeOfAlignOfExpr*>(this)->getArgumentExpr(); 1377caae7b099a0324b7c15dc89a9b70969d5d7ce996Chris Lattner } 13780b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor 13790b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor void setArgument(Expr *E) { Argument.Ex = E; isType = false; } 1380a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall void setArgument(TypeSourceInfo *TInfo) { 1381a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall Argument.Ty = TInfo; 13821eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump isType = true; 13830b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor } 13840b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor 13850518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl /// Gets the argument type, or the type of the argument expression, whichever 13860518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl /// is appropriate. 13870518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl QualType getTypeOfArgument() const { 13880518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl return isArgumentType() ? getArgumentType() : getArgumentExpr()->getType(); 13890518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl } 13900518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl 139176e773a443be9f006610f46529e07d4c8d857680Chris Lattner SourceLocation getOperatorLoc() const { return OpLoc; } 13920b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor void setOperatorLoc(SourceLocation L) { OpLoc = L; } 13930b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor 13940b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor SourceLocation getRParenLoc() const { return RParenLoc; } 13950b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor void setRParenLoc(SourceLocation L) { RParenLoc = L; } 1396866b5c03e3b9c01cf496ad97b85a05afc917345bTed Kremenek 1397866b5c03e3b9c01cf496ad97b85a05afc917345bTed Kremenek virtual SourceRange getSourceRange() const { 1398866b5c03e3b9c01cf496ad97b85a05afc917345bTed Kremenek return SourceRange(OpLoc, RParenLoc); 1399866b5c03e3b9c01cf496ad97b85a05afc917345bTed Kremenek } 14005f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 14011eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 14021eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == SizeOfAlignOfExprClass; 14035f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 14040518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl static bool classof(const SizeOfAlignOfExpr *) { return true; } 14051eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 140677ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek // Iterators 140777ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_begin(); 140877ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_end(); 14095f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 14105f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 14115f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer//===----------------------------------------------------------------------===// 14125f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// Postfix Operators. 14135f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer//===----------------------------------------------------------------------===// 14145f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 14155f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// ArraySubscriptExpr - [C99 6.5.2.1] Array Subscripting. 14165f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass ArraySubscriptExpr : public Expr { 141777ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek enum { LHS, RHS, END_EXPR=2 }; 14181eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump Stmt* SubExprs[END_EXPR]; 14195f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation RBracketLoc; 14205f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 14212324512285caac0332bbbc6e4cab6245d2a370a1Ted Kremenek ArraySubscriptExpr(Expr *lhs, Expr *rhs, QualType t, 142273d0d4fac161ed12926e010dcf8b448a8de6a2ecChris Lattner SourceLocation rbracketloc) 14232850784bda09416fc7e9d57f5baa36c9351c757cSebastian Redl : Expr(ArraySubscriptExprClass, t, 14242850784bda09416fc7e9d57f5baa36c9351c757cSebastian Redl lhs->isTypeDependent() || rhs->isTypeDependent(), 14252850784bda09416fc7e9d57f5baa36c9351c757cSebastian Redl lhs->isValueDependent() || rhs->isValueDependent()), 14262850784bda09416fc7e9d57f5baa36c9351c757cSebastian Redl RBracketLoc(rbracketloc) { 142773d0d4fac161ed12926e010dcf8b448a8de6a2ecChris Lattner SubExprs[LHS] = lhs; 142873d0d4fac161ed12926e010dcf8b448a8de6a2ecChris Lattner SubExprs[RHS] = rhs; 142973d0d4fac161ed12926e010dcf8b448a8de6a2ecChris Lattner } 14301eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1431cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor /// \brief Create an empty array subscript expression. 1432cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor explicit ArraySubscriptExpr(EmptyShell Shell) 1433cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor : Expr(ArraySubscriptExprClass, Shell) { } 1434cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor 14352324512285caac0332bbbc6e4cab6245d2a370a1Ted Kremenek /// An array access can be written A[4] or 4[A] (both are equivalent). 14362324512285caac0332bbbc6e4cab6245d2a370a1Ted Kremenek /// - getBase() and getIdx() always present the normalized view: A[4]. 14372324512285caac0332bbbc6e4cab6245d2a370a1Ted Kremenek /// In this case getBase() returns "A" and getIdx() returns "4". 14382324512285caac0332bbbc6e4cab6245d2a370a1Ted Kremenek /// - getLHS() and getRHS() present the syntactic view. e.g. for 14392324512285caac0332bbbc6e4cab6245d2a370a1Ted Kremenek /// 4[A] getLHS() returns "4". 144033fd5c124aac15bab7cad95e4e0e7761356d2c06Christopher Lamb /// Note: Because vector element access is also written A[4] we must 144133fd5c124aac15bab7cad95e4e0e7761356d2c06Christopher Lamb /// predicate the format conversion in getBase and getIdx only on the 144233fd5c124aac15bab7cad95e4e0e7761356d2c06Christopher Lamb /// the type of the RHS, as it is possible for the LHS to be a vector of 144333fd5c124aac15bab7cad95e4e0e7761356d2c06Christopher Lamb /// integer type 14445549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getLHS() { return cast<Expr>(SubExprs[LHS]); } 14455549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek const Expr *getLHS() const { return cast<Expr>(SubExprs[LHS]); } 1446cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor void setLHS(Expr *E) { SubExprs[LHS] = E; } 1447cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor 14485549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getRHS() { return cast<Expr>(SubExprs[RHS]); } 14495549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek const Expr *getRHS() const { return cast<Expr>(SubExprs[RHS]); } 1450cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor void setRHS(Expr *E) { SubExprs[RHS] = E; } 14511eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 14521eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump Expr *getBase() { 14535549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek return cast<Expr>(getRHS()->getType()->isIntegerType() ? getLHS():getRHS()); 145477ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek } 14551eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 14561eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump const Expr *getBase() const { 14575549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek return cast<Expr>(getRHS()->getType()->isIntegerType() ? getLHS():getRHS()); 14582324512285caac0332bbbc6e4cab6245d2a370a1Ted Kremenek } 14591eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 14601eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump Expr *getIdx() { 14615549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek return cast<Expr>(getRHS()->getType()->isIntegerType() ? getRHS():getLHS()); 14622324512285caac0332bbbc6e4cab6245d2a370a1Ted Kremenek } 14631eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 146477ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek const Expr *getIdx() const { 14655549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek return cast<Expr>(getRHS()->getType()->isIntegerType() ? getRHS():getLHS()); 14661eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump } 14671eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 14681eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump virtual SourceRange getSourceRange() const { 146977ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek return SourceRange(getLHS()->getLocStart(), RBracketLoc); 14705f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 14711eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1472026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner SourceLocation getRBracketLoc() const { return RBracketLoc; } 1473cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor void setRBracketLoc(SourceLocation L) { RBracketLoc = L; } 1474cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor 14755cd9d6daf3acd4cc87fecebd81d9495b9e4ba9cdChris Lattner virtual SourceLocation getExprLoc() const { return getBase()->getExprLoc(); } 14765f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 14771eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 14781eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == ArraySubscriptExprClass; 14795f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 14805f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const ArraySubscriptExpr *) { return true; } 14811eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 148277ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek // Iterators 148377ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_begin(); 148477ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_end(); 14855f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 14865f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 14875f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1488b4609806e9232593ece09ce08b630836e825865cDouglas Gregor/// CallExpr - Represents a function call (C99 6.5.2.2, C++ [expr.call]). 14891eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// CallExpr itself represents a normal function call, e.g., "f(x, 2)", 1490b4609806e9232593ece09ce08b630836e825865cDouglas Gregor/// while its subclasses may represent alternative syntax that (semantically) 14911eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// results in a function call. For example, CXXOperatorCallExpr is 1492b4609806e9232593ece09ce08b630836e825865cDouglas Gregor/// a subclass for overloaded operator calls that use operator syntax, e.g., 1493b4609806e9232593ece09ce08b630836e825865cDouglas Gregor/// "str1 + str2" to resolve to a function call. 14945f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass CallExpr : public Expr { 149577ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek enum { FN=0, ARGS_START=1 }; 14965549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Stmt **SubExprs; 14975f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer unsigned NumArgs; 14985f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation RParenLoc; 14991eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1500b4609806e9232593ece09ce08b630836e825865cDouglas Gregorprotected: 1501b4609806e9232593ece09ce08b630836e825865cDouglas Gregor // This version of the constructor is for derived classes. 1502668bf91d31265b6ea8c3eb854ba450857701f269Ted Kremenek CallExpr(ASTContext& C, StmtClass SC, Expr *fn, Expr **args, unsigned numargs, 1503668bf91d31265b6ea8c3eb854ba450857701f269Ted Kremenek QualType t, SourceLocation rparenloc); 150442602bb40aefcc2751d4078ba88aacf4d965c9bdDouglas Gregor 15055f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 15061eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump CallExpr(ASTContext& C, Expr *fn, Expr **args, unsigned numargs, QualType t, 15075f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation rparenloc); 15081eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 15091f0d0133b0e8d1f01f63951ee04927796b34740dDouglas Gregor /// \brief Build an empty call expression. 1510ba0a9006dbc4814e1e35f82812cb5a1dad65e8b8Argyrios Kyrtzidis CallExpr(ASTContext &C, StmtClass SC, EmptyShell Empty); 15111f0d0133b0e8d1f01f63951ee04927796b34740dDouglas Gregor 15125549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek const Expr *getCallee() const { return cast<Expr>(SubExprs[FN]); } 15135549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getCallee() { return cast<Expr>(SubExprs[FN]); } 151418b2515e1bf8c86a4900792692e42fe1296be28dChris Lattner void setCallee(Expr *F) { SubExprs[FN] = F; } 1515a00425414e8c209cabc25d1826b200aeb94259afZhongxing Xu 1516d20254f2875d0004c57ee766f258dbcee29f4841Nuno Lopes Decl *getCalleeDecl(); 1517d20254f2875d0004c57ee766f258dbcee29f4841Nuno Lopes const Decl *getCalleeDecl() const { 1518d20254f2875d0004c57ee766f258dbcee29f4841Nuno Lopes return const_cast<CallExpr*>(this)->getCalleeDecl(); 1519d20254f2875d0004c57ee766f258dbcee29f4841Nuno Lopes } 1520d20254f2875d0004c57ee766f258dbcee29f4841Nuno Lopes 1521a00425414e8c209cabc25d1826b200aeb94259afZhongxing Xu /// \brief If the callee is a FunctionDecl, return it. Otherwise return 0. 1522a00425414e8c209cabc25d1826b200aeb94259afZhongxing Xu FunctionDecl *getDirectCallee(); 1523bc8d42c6f1565c0b2f93ad524edebfd7a4e6cac6Chris Lattner const FunctionDecl *getDirectCallee() const { 1524bc8d42c6f1565c0b2f93ad524edebfd7a4e6cac6Chris Lattner return const_cast<CallExpr*>(this)->getDirectCallee(); 1525bc8d42c6f1565c0b2f93ad524edebfd7a4e6cac6Chris Lattner } 1526a00425414e8c209cabc25d1826b200aeb94259afZhongxing Xu 15275f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// getNumArgs - Return the number of actual arguments to this call. 15285f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// 15295f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer unsigned getNumArgs() const { return NumArgs; } 15301eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 15315f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// getArg - Return the specified argument. 15325f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Expr *getArg(unsigned Arg) { 15335f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer assert(Arg < NumArgs && "Arg access out of range!"); 15345549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek return cast<Expr>(SubExprs[Arg+ARGS_START]); 15355f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 15365f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer const Expr *getArg(unsigned Arg) const { 15375f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer assert(Arg < NumArgs && "Arg access out of range!"); 15385549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek return cast<Expr>(SubExprs[Arg+ARGS_START]); 15395f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 15401eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1541934f276cc5b45e19cd12ebb2d04fd7972a23865cSteve Naroff /// setArg - Set the specified argument. 1542934f276cc5b45e19cd12ebb2d04fd7972a23865cSteve Naroff void setArg(unsigned Arg, Expr *ArgExpr) { 1543934f276cc5b45e19cd12ebb2d04fd7972a23865cSteve Naroff assert(Arg < NumArgs && "Arg access out of range!"); 1544934f276cc5b45e19cd12ebb2d04fd7972a23865cSteve Naroff SubExprs[Arg+ARGS_START] = ArgExpr; 1545934f276cc5b45e19cd12ebb2d04fd7972a23865cSteve Naroff } 15461eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1547d18b3299debb7b0dbd9d34d9369189dc98c87f53Chris Lattner /// setNumArgs - This changes the number of arguments present in this call. 1548d18b3299debb7b0dbd9d34d9369189dc98c87f53Chris Lattner /// Any orphaned expressions are deleted by this, and any new operands are set 1549d18b3299debb7b0dbd9d34d9369189dc98c87f53Chris Lattner /// to null. 15508189cde56b4f6f938cd65f53c932fe1860d0204cTed Kremenek void setNumArgs(ASTContext& C, unsigned NumArgs); 15511eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 15525549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek typedef ExprIterator arg_iterator; 15535549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek typedef ConstExprIterator const_arg_iterator; 15541eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1555d18b3299debb7b0dbd9d34d9369189dc98c87f53Chris Lattner arg_iterator arg_begin() { return SubExprs+ARGS_START; } 1556d18b3299debb7b0dbd9d34d9369189dc98c87f53Chris Lattner arg_iterator arg_end() { return SubExprs+ARGS_START+getNumArgs(); } 15575549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek const_arg_iterator arg_begin() const { return SubExprs+ARGS_START; } 15585549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek const_arg_iterator arg_end() const { return SubExprs+ARGS_START+getNumArgs();} 15591eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 15605f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// getNumCommas - Return the number of commas that must have been present in 15615f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// this function call. 15625f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer unsigned getNumCommas() const { return NumArgs ? NumArgs - 1 : 0; } 15635f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1564cb888967400a03504c88acedd5248d6778a82f46Chris Lattner /// isBuiltinCall - If this is a call to a builtin, return the builtin ID. If 1565cb888967400a03504c88acedd5248d6778a82f46Chris Lattner /// not, return 0. 15663c385e5f8d9008fff18597ca302be19fa86e51f6Douglas Gregor unsigned isBuiltinCall(ASTContext &Context) const; 15671eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 15681eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /// getCallReturnType - Get the return type of the call expr. This is not 15691eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /// always the type of the expr itself, if the return type is a reference 15706dde78f744382a5627a04f984a97049e0c4b5e73Anders Carlsson /// type. 15716dde78f744382a5627a04f984a97049e0c4b5e73Anders Carlsson QualType getCallReturnType() const; 15721eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1573d18b3299debb7b0dbd9d34d9369189dc98c87f53Chris Lattner SourceLocation getRParenLoc() const { return RParenLoc; } 15741f0d0133b0e8d1f01f63951ee04927796b34740dDouglas Gregor void setRParenLoc(SourceLocation L) { RParenLoc = L; } 1575866b5c03e3b9c01cf496ad97b85a05afc917345bTed Kremenek 15761eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump virtual SourceRange getSourceRange() const { 157777ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek return SourceRange(getCallee()->getLocStart(), RParenLoc); 15785f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 15791eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 15801eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 15814bfe1968410ea8ffe3b4f629addd7c4bcf484765Sean Hunt return T->getStmtClass() >= firstCallExprConstant && 15824bfe1968410ea8ffe3b4f629addd7c4bcf484765Sean Hunt T->getStmtClass() <= lastCallExprConstant; 15835f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 15845f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const CallExpr *) { return true; } 158588a3514f36de96b19cdf50141c640df1a5f13f6cDouglas Gregor 158677ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek // Iterators 158777ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_begin(); 158877ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_end(); 15895f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 15905f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1591ddca44e86281bb7dcf5fdcaf1563434c524e3861Chris Lattner/// MemberExpr - [C99 6.5.2.3] Structure and Union Members. X->F and X.F. 15925f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 15935f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass MemberExpr : public Expr { 15946bb8017bb9e828d118e15e59d71c66bba323c364John McCall /// Extra data stored in some member expressions. 15956bb8017bb9e828d118e15e59d71c66bba323c364John McCall struct MemberNameQualifier : public NameQualifier { 1596161755a09898c95d21bfff33707da9ca41cd53c5John McCall DeclAccessPair FoundDecl; 15976bb8017bb9e828d118e15e59d71c66bba323c364John McCall }; 15986bb8017bb9e828d118e15e59d71c66bba323c364John McCall 1599ddca44e86281bb7dcf5fdcaf1563434c524e3861Chris Lattner /// Base - the expression for the base pointer or structure references. In 1600ddca44e86281bb7dcf5fdcaf1563434c524e3861Chris Lattner /// X.F, this is "X". 16015549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Stmt *Base; 16021eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1603ddca44e86281bb7dcf5fdcaf1563434c524e3861Chris Lattner /// MemberDecl - This is the decl being referenced by the field/member name. 1604ddca44e86281bb7dcf5fdcaf1563434c524e3861Chris Lattner /// In X.F, this is the decl referenced by F. 1605f595cc41c4d95fe323f8a2b209523de9956f874dEli Friedman ValueDecl *MemberDecl; 16061eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1607ddca44e86281bb7dcf5fdcaf1563434c524e3861Chris Lattner /// MemberLoc - This is the location of the member name. 16085f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation MemberLoc; 16091eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 16102577743c5650c646fb705df01403707e94f2df04Abramo Bagnara /// MemberDNLoc - Provides source/type location info for the 16112577743c5650c646fb705df01403707e94f2df04Abramo Bagnara /// declaration name embedded in MemberDecl. 16122577743c5650c646fb705df01403707e94f2df04Abramo Bagnara DeclarationNameLoc MemberDNLoc; 16132577743c5650c646fb705df01403707e94f2df04Abramo Bagnara 1614ddca44e86281bb7dcf5fdcaf1563434c524e3861Chris Lattner /// IsArrow - True if this is "X->F", false if this is "X.F". 161583f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor bool IsArrow : 1; 16161eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 161783f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor /// \brief True if this member expression used a nested-name-specifier to 16186bb8017bb9e828d118e15e59d71c66bba323c364John McCall /// refer to the member, e.g., "x->Base::f", or found its member via a using 16196bb8017bb9e828d118e15e59d71c66bba323c364John McCall /// declaration. When true, a MemberNameQualifier 1620c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor /// structure is allocated immediately after the MemberExpr. 16216bb8017bb9e828d118e15e59d71c66bba323c364John McCall bool HasQualifierOrFoundDecl : 1; 16221eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1623c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor /// \brief True if this member expression specified a template argument list 1624c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor /// explicitly, e.g., x->f<int>. When true, an ExplicitTemplateArgumentList 1625c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor /// structure (and its TemplateArguments) are allocated immediately after 1626c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor /// the MemberExpr or, if the member expression also has a qualifier, after 16276bb8017bb9e828d118e15e59d71c66bba323c364John McCall /// the MemberNameQualifier structure. 1628c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor bool HasExplicitTemplateArgumentList : 1; 16291eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 163083f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor /// \brief Retrieve the qualifier that preceded the member name, if any. 16316bb8017bb9e828d118e15e59d71c66bba323c364John McCall MemberNameQualifier *getMemberQualifier() { 16326bb8017bb9e828d118e15e59d71c66bba323c364John McCall assert(HasQualifierOrFoundDecl); 16336bb8017bb9e828d118e15e59d71c66bba323c364John McCall return reinterpret_cast<MemberNameQualifier *> (this + 1); 163483f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor } 163583f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor 163683f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor /// \brief Retrieve the qualifier that preceded the member name, if any. 16376bb8017bb9e828d118e15e59d71c66bba323c364John McCall const MemberNameQualifier *getMemberQualifier() const { 1638c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor return const_cast<MemberExpr *>(this)->getMemberQualifier(); 1639c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor } 16401eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1641c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor /// \brief Retrieve the explicit template argument list that followed the 1642c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor /// member template name, if any. 1643c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor ExplicitTemplateArgumentList *getExplicitTemplateArgumentList() { 1644c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor if (!HasExplicitTemplateArgumentList) 164583f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor return 0; 16461eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 16476bb8017bb9e828d118e15e59d71c66bba323c364John McCall if (!HasQualifierOrFoundDecl) 1648c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor return reinterpret_cast<ExplicitTemplateArgumentList *>(this + 1); 16491eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1650c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor return reinterpret_cast<ExplicitTemplateArgumentList *>( 1651c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor getMemberQualifier() + 1); 1652c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor } 16531eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1654c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor /// \brief Retrieve the explicit template argument list that followed the 1655c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor /// member template name, if any. 1656c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor const ExplicitTemplateArgumentList *getExplicitTemplateArgumentList() const { 1657c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor return const_cast<MemberExpr *>(this)->getExplicitTemplateArgumentList(); 165883f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor } 16591eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 16605f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 1661f595cc41c4d95fe323f8a2b209523de9956f874dEli Friedman MemberExpr(Expr *base, bool isarrow, ValueDecl *memberdecl, 16622577743c5650c646fb705df01403707e94f2df04Abramo Bagnara const DeclarationNameInfo &NameInfo, QualType ty) 16632577743c5650c646fb705df01403707e94f2df04Abramo Bagnara : Expr(MemberExprClass, ty, 16642577743c5650c646fb705df01403707e94f2df04Abramo Bagnara base->isTypeDependent(), base->isValueDependent()), 16652577743c5650c646fb705df01403707e94f2df04Abramo Bagnara Base(base), MemberDecl(memberdecl), MemberLoc(NameInfo.getLoc()), 16662577743c5650c646fb705df01403707e94f2df04Abramo Bagnara MemberDNLoc(NameInfo.getInfo()), IsArrow(isarrow), 16672577743c5650c646fb705df01403707e94f2df04Abramo Bagnara HasQualifierOrFoundDecl(false), HasExplicitTemplateArgumentList(false) { 16682577743c5650c646fb705df01403707e94f2df04Abramo Bagnara assert(memberdecl->getDeclName() == NameInfo.getName()); 16692577743c5650c646fb705df01403707e94f2df04Abramo Bagnara } 16702577743c5650c646fb705df01403707e94f2df04Abramo Bagnara 16712577743c5650c646fb705df01403707e94f2df04Abramo Bagnara // NOTE: this constructor should be used only when it is known that 16722577743c5650c646fb705df01403707e94f2df04Abramo Bagnara // the member name can not provide additional syntactic info 16732577743c5650c646fb705df01403707e94f2df04Abramo Bagnara // (i.e., source locations for C++ operator names or type source info 16742577743c5650c646fb705df01403707e94f2df04Abramo Bagnara // for constructors, destructors and conversion oeprators). 16752577743c5650c646fb705df01403707e94f2df04Abramo Bagnara MemberExpr(Expr *base, bool isarrow, ValueDecl *memberdecl, 1676f595cc41c4d95fe323f8a2b209523de9956f874dEli Friedman SourceLocation l, QualType ty) 16771eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump : Expr(MemberExprClass, ty, 1678ffce2df6ae280d354d51371282a579df1eb86876Anders Carlsson base->isTypeDependent(), base->isValueDependent()), 16792577743c5650c646fb705df01403707e94f2df04Abramo Bagnara Base(base), MemberDecl(memberdecl), MemberLoc(l), MemberDNLoc(), 16802577743c5650c646fb705df01403707e94f2df04Abramo Bagnara IsArrow(isarrow), 16816bb8017bb9e828d118e15e59d71c66bba323c364John McCall HasQualifierOrFoundDecl(false), HasExplicitTemplateArgumentList(false) {} 1682510190777c4bd53e960eea4665b204778fec1b64Eli Friedman 16831eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static MemberExpr *Create(ASTContext &C, Expr *base, bool isarrow, 168483f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor NestedNameSpecifier *qual, SourceRange qualrange, 1685161755a09898c95d21bfff33707da9ca41cd53c5John McCall ValueDecl *memberdecl, DeclAccessPair founddecl, 16862577743c5650c646fb705df01403707e94f2df04Abramo Bagnara DeclarationNameInfo MemberNameInfo, 1687d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall const TemplateArgumentListInfo *targs, 1688c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor QualType ty); 16891eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 169088a3514f36de96b19cdf50141c640df1a5f13f6cDouglas Gregor void setBase(Expr *E) { Base = E; } 16915549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getBase() const { return cast<Expr>(Base); } 169257e8b05fe9ba03d410db9c161e032cb79c9ab5baDouglas Gregor 169357e8b05fe9ba03d410db9c161e032cb79c9ab5baDouglas Gregor /// \brief Retrieve the member declaration to which this expression refers. 169457e8b05fe9ba03d410db9c161e032cb79c9ab5baDouglas Gregor /// 169557e8b05fe9ba03d410db9c161e032cb79c9ab5baDouglas Gregor /// The returned declaration will either be a FieldDecl or (in C++) 169657e8b05fe9ba03d410db9c161e032cb79c9ab5baDouglas Gregor /// a CXXMethodDecl. 1697f595cc41c4d95fe323f8a2b209523de9956f874dEli Friedman ValueDecl *getMemberDecl() const { return MemberDecl; } 1698f595cc41c4d95fe323f8a2b209523de9956f874dEli Friedman void setMemberDecl(ValueDecl *D) { MemberDecl = D; } 16991f0d0133b0e8d1f01f63951ee04927796b34740dDouglas Gregor 17006bb8017bb9e828d118e15e59d71c66bba323c364John McCall /// \brief Retrieves the declaration found by lookup. 1701161755a09898c95d21bfff33707da9ca41cd53c5John McCall DeclAccessPair getFoundDecl() const { 17026bb8017bb9e828d118e15e59d71c66bba323c364John McCall if (!HasQualifierOrFoundDecl) 1703161755a09898c95d21bfff33707da9ca41cd53c5John McCall return DeclAccessPair::make(getMemberDecl(), 1704161755a09898c95d21bfff33707da9ca41cd53c5John McCall getMemberDecl()->getAccess()); 17056bb8017bb9e828d118e15e59d71c66bba323c364John McCall return getMemberQualifier()->FoundDecl; 17066bb8017bb9e828d118e15e59d71c66bba323c364John McCall } 17076bb8017bb9e828d118e15e59d71c66bba323c364John McCall 17081eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /// \brief Determines whether this member expression actually had 17090979c805475d1ba49b5d6ef93c4d2ce6d2eab6edDouglas Gregor /// a C++ nested-name-specifier prior to the name of the member, e.g., 17100979c805475d1ba49b5d6ef93c4d2ce6d2eab6edDouglas Gregor /// x->Base::foo. 17116bb8017bb9e828d118e15e59d71c66bba323c364John McCall bool hasQualifier() const { return getQualifier() != 0; } 17121eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 171383f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor /// \brief If the member name was qualified, retrieves the source range of 171483f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor /// the nested-name-specifier that precedes the member name. Otherwise, 171583f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor /// returns an empty source range. 17161eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump SourceRange getQualifierRange() const { 17176bb8017bb9e828d118e15e59d71c66bba323c364John McCall if (!HasQualifierOrFoundDecl) 171883f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor return SourceRange(); 17191eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 172083f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor return getMemberQualifier()->Range; 172183f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor } 17221eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 17231eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /// \brief If the member name was qualified, retrieves the 172483f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor /// nested-name-specifier that precedes the member name. Otherwise, returns 172583f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor /// NULL. 17261eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump NestedNameSpecifier *getQualifier() const { 17276bb8017bb9e828d118e15e59d71c66bba323c364John McCall if (!HasQualifierOrFoundDecl) 172883f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor return 0; 17291eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 173083f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor return getMemberQualifier()->NNS; 173183f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor } 1732c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor 1733c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor /// \brief Determines whether this member expression actually had a C++ 1734c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor /// template argument list explicitly specified, e.g., x.f<int>. 1735d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall bool hasExplicitTemplateArgumentList() const { 17361eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return HasExplicitTemplateArgumentList; 1737c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor } 17381eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1739d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall /// \brief Copies the template arguments (if present) into the given 1740d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall /// structure. 1741d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall void copyTemplateArgumentsInto(TemplateArgumentListInfo &List) const { 1742d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall if (hasExplicitTemplateArgumentList()) 1743d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall getExplicitTemplateArgumentList()->copyInto(List); 1744d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall } 1745c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 17461eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /// \brief Retrieve the location of the left angle bracket following the 1747c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor /// member name ('<'), if any. 17481eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump SourceLocation getLAngleLoc() const { 1749c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor if (!HasExplicitTemplateArgumentList) 1750c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor return SourceLocation(); 17511eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1752c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor return getExplicitTemplateArgumentList()->LAngleLoc; 1753c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor } 17541eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1755c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor /// \brief Retrieve the template arguments provided as part of this 1756c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor /// template-id. 1757833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall const TemplateArgumentLoc *getTemplateArgs() const { 1758c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor if (!HasExplicitTemplateArgumentList) 17591eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return 0; 17601eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1761c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor return getExplicitTemplateArgumentList()->getTemplateArgs(); 1762c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor } 17631eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1764c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor /// \brief Retrieve the number of template arguments provided as part of this 1765c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor /// template-id. 17661eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump unsigned getNumTemplateArgs() const { 1767c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor if (!HasExplicitTemplateArgumentList) 17681eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return 0; 17691eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1770c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor return getExplicitTemplateArgumentList()->NumTemplateArgs; 1771c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor } 17721eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 17731eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /// \brief Retrieve the location of the right angle bracket following the 1774c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor /// template arguments ('>'). 17751eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump SourceLocation getRAngleLoc() const { 1776c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor if (!HasExplicitTemplateArgumentList) 1777c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor return SourceLocation(); 17781eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1779c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor return getExplicitTemplateArgumentList()->RAngleLoc; 1780c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor } 17811eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 17822577743c5650c646fb705df01403707e94f2df04Abramo Bagnara /// \brief Retrieve the member declaration name info. 17832577743c5650c646fb705df01403707e94f2df04Abramo Bagnara DeclarationNameInfo getMemberNameInfo() const { 17842577743c5650c646fb705df01403707e94f2df04Abramo Bagnara return DeclarationNameInfo(MemberDecl->getDeclName(), 17852577743c5650c646fb705df01403707e94f2df04Abramo Bagnara MemberLoc, MemberDNLoc); 17862577743c5650c646fb705df01403707e94f2df04Abramo Bagnara } 17872577743c5650c646fb705df01403707e94f2df04Abramo Bagnara 17885f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool isArrow() const { return IsArrow; } 17891f0d0133b0e8d1f01f63951ee04927796b34740dDouglas Gregor void setArrow(bool A) { IsArrow = A; } 17901f0d0133b0e8d1f01f63951ee04927796b34740dDouglas Gregor 1791ddca44e86281bb7dcf5fdcaf1563434c524e3861Chris Lattner /// getMemberLoc - Return the location of the "member", in X->F, it is the 1792ddca44e86281bb7dcf5fdcaf1563434c524e3861Chris Lattner /// location of 'F'. 1793026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner SourceLocation getMemberLoc() const { return MemberLoc; } 17941f0d0133b0e8d1f01f63951ee04927796b34740dDouglas Gregor void setMemberLoc(SourceLocation L) { MemberLoc = L; } 17955f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 17965f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer virtual SourceRange getSourceRange() const { 179772527137c521ad9330ecb81ccd841159719dc8cdEli Friedman // If we have an implicit base (like a C++ implicit this), 179872527137c521ad9330ecb81ccd841159719dc8cdEli Friedman // make sure not to return its location 17992577743c5650c646fb705df01403707e94f2df04Abramo Bagnara SourceLocation EndLoc = (HasExplicitTemplateArgumentList) 18002577743c5650c646fb705df01403707e94f2df04Abramo Bagnara ? getRAngleLoc() : getMemberNameInfo().getEndLoc(); 18011eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 180272527137c521ad9330ecb81ccd841159719dc8cdEli Friedman SourceLocation BaseLoc = getBase()->getLocStart(); 180372527137c521ad9330ecb81ccd841159719dc8cdEli Friedman if (BaseLoc.isInvalid()) 1804c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor return SourceRange(MemberLoc, EndLoc); 1805c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor return SourceRange(BaseLoc, EndLoc); 18065f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 18071eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 18085f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer virtual SourceLocation getExprLoc() const { return MemberLoc; } 18095f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 18101eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 181183f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor return T->getStmtClass() == MemberExprClass; 18125f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 18135f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const MemberExpr *) { return true; } 18141eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 18151237c673c07f9d827129ba02720108816abde562Ted Kremenek // Iterators 18161237c673c07f9d827129ba02720108816abde562Ted Kremenek virtual child_iterator child_begin(); 18171237c673c07f9d827129ba02720108816abde562Ted Kremenek virtual child_iterator child_end(); 18185f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 18195f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 18201eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// CompoundLiteralExpr - [C99 6.5.2.5] 1821aff1edd84aaafef15b737acd8ec61abcca6d6bc3Steve Naroff/// 1822aff1edd84aaafef15b737acd8ec61abcca6d6bc3Steve Naroffclass CompoundLiteralExpr : public Expr { 18230fc53dfc7a33f68e71ef245389c4e7cd34a62a39Chris Lattner /// LParenLoc - If non-null, this is the location of the left paren in a 18240fc53dfc7a33f68e71ef245389c4e7cd34a62a39Chris Lattner /// compound literal like "(int){4}". This can be null if this is a 18250fc53dfc7a33f68e71ef245389c4e7cd34a62a39Chris Lattner /// synthesized compound expression. 18260fc53dfc7a33f68e71ef245389c4e7cd34a62a39Chris Lattner SourceLocation LParenLoc; 18271d7d8d66eff7ed0f3e957d330930cc9ab8047addJohn McCall 18281d7d8d66eff7ed0f3e957d330930cc9ab8047addJohn McCall /// The type as written. This can be an incomplete array type, in 18291d7d8d66eff7ed0f3e957d330930cc9ab8047addJohn McCall /// which case the actual expression type will be different. 183042f56b50062cd3b3c6b23fdb9053578ae9145664John McCall TypeSourceInfo *TInfo; 18315549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Stmt *Init; 1832e9b12198c4cc7f5687960100351b4af006c14469Steve Naroff bool FileScope; 1833aff1edd84aaafef15b737acd8ec61abcca6d6bc3Steve Naroffpublic: 18342333f7727f97018d6742e1e0938133bcfad967abEli Friedman // FIXME: Can compound literals be value-dependent? 183542f56b50062cd3b3c6b23fdb9053578ae9145664John McCall CompoundLiteralExpr(SourceLocation lparenloc, TypeSourceInfo *tinfo, 18361d7d8d66eff7ed0f3e957d330930cc9ab8047addJohn McCall QualType T, Expr *init, bool fileScope) 18371d7d8d66eff7ed0f3e957d330930cc9ab8047addJohn McCall : Expr(CompoundLiteralExprClass, T, 183842f56b50062cd3b3c6b23fdb9053578ae9145664John McCall tinfo->getType()->isDependentType(), false), 183942f56b50062cd3b3c6b23fdb9053578ae9145664John McCall LParenLoc(lparenloc), TInfo(tinfo), Init(init), FileScope(fileScope) {} 18401eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1841ba6d7e7fa5f79959d3eef39adb5620d845ba5198Douglas Gregor /// \brief Construct an empty compound literal. 1842ba6d7e7fa5f79959d3eef39adb5620d845ba5198Douglas Gregor explicit CompoundLiteralExpr(EmptyShell Empty) 1843ba6d7e7fa5f79959d3eef39adb5620d845ba5198Douglas Gregor : Expr(CompoundLiteralExprClass, Empty) { } 1844ba6d7e7fa5f79959d3eef39adb5620d845ba5198Douglas Gregor 18455549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek const Expr *getInitializer() const { return cast<Expr>(Init); } 18465549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getInitializer() { return cast<Expr>(Init); } 1847ba6d7e7fa5f79959d3eef39adb5620d845ba5198Douglas Gregor void setInitializer(Expr *E) { Init = E; } 1848e9b12198c4cc7f5687960100351b4af006c14469Steve Naroff 1849e9b12198c4cc7f5687960100351b4af006c14469Steve Naroff bool isFileScope() const { return FileScope; } 1850ba6d7e7fa5f79959d3eef39adb5620d845ba5198Douglas Gregor void setFileScope(bool FS) { FileScope = FS; } 1851ba6d7e7fa5f79959d3eef39adb5620d845ba5198Douglas Gregor 18520fc53dfc7a33f68e71ef245389c4e7cd34a62a39Chris Lattner SourceLocation getLParenLoc() const { return LParenLoc; } 1853ba6d7e7fa5f79959d3eef39adb5620d845ba5198Douglas Gregor void setLParenLoc(SourceLocation L) { LParenLoc = L; } 1854ba6d7e7fa5f79959d3eef39adb5620d845ba5198Douglas Gregor 185542f56b50062cd3b3c6b23fdb9053578ae9145664John McCall TypeSourceInfo *getTypeSourceInfo() const { return TInfo; } 185642f56b50062cd3b3c6b23fdb9053578ae9145664John McCall void setTypeSourceInfo(TypeSourceInfo* tinfo) { TInfo = tinfo; } 185742f56b50062cd3b3c6b23fdb9053578ae9145664John McCall 185873d0d4fac161ed12926e010dcf8b448a8de6a2ecChris Lattner virtual SourceRange getSourceRange() const { 18590fc53dfc7a33f68e71ef245389c4e7cd34a62a39Chris Lattner // FIXME: Init should never be null. 18600fc53dfc7a33f68e71ef245389c4e7cd34a62a39Chris Lattner if (!Init) 18610fc53dfc7a33f68e71ef245389c4e7cd34a62a39Chris Lattner return SourceRange(); 18620fc53dfc7a33f68e71ef245389c4e7cd34a62a39Chris Lattner if (LParenLoc.isInvalid()) 186373d0d4fac161ed12926e010dcf8b448a8de6a2ecChris Lattner return Init->getSourceRange(); 18640fc53dfc7a33f68e71ef245389c4e7cd34a62a39Chris Lattner return SourceRange(LParenLoc, Init->getLocEnd()); 186573d0d4fac161ed12926e010dcf8b448a8de6a2ecChris Lattner } 1866aff1edd84aaafef15b737acd8ec61abcca6d6bc3Steve Naroff 18671eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 18681eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == CompoundLiteralExprClass; 1869aff1edd84aaafef15b737acd8ec61abcca6d6bc3Steve Naroff } 1870aff1edd84aaafef15b737acd8ec61abcca6d6bc3Steve Naroff static bool classof(const CompoundLiteralExpr *) { return true; } 18711eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 18721237c673c07f9d827129ba02720108816abde562Ted Kremenek // Iterators 18731237c673c07f9d827129ba02720108816abde562Ted Kremenek virtual child_iterator child_begin(); 18741237c673c07f9d827129ba02720108816abde562Ted Kremenek virtual child_iterator child_end(); 1875aff1edd84aaafef15b737acd8ec61abcca6d6bc3Steve Naroff}; 1876aff1edd84aaafef15b737acd8ec61abcca6d6bc3Steve Naroff 187749badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// CastExpr - Base class for type casts, including both implicit 187849badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// casts (ImplicitCastExpr) and explicit casts that have some 187949badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// representation in the source code (ExplicitCastExpr's derived 188049badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// classes). 18810835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidisclass CastExpr : public Expr { 1882cdef2b75aa60cde1ca00e0aa3f89139ac89c6ae4Anders Carlssonpublic: 1883cdef2b75aa60cde1ca00e0aa3f89139ac89c6ae4Anders Carlsson /// CastKind - the kind of cast this represents. 1884cdef2b75aa60cde1ca00e0aa3f89139ac89c6ae4Anders Carlsson enum CastKind { 1885cdef2b75aa60cde1ca00e0aa3f89139ac89c6ae4Anders Carlsson /// CK_Unknown - Unknown cast kind. 18861eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /// FIXME: The goal is to get rid of this and make all casts have a 1887cdef2b75aa60cde1ca00e0aa3f89139ac89c6ae4Anders Carlsson /// kind so that the AST client doesn't have to try to figure out what's 1888cdef2b75aa60cde1ca00e0aa3f89139ac89c6ae4Anders Carlsson /// going on. 1889cdef2b75aa60cde1ca00e0aa3f89139ac89c6ae4Anders Carlsson CK_Unknown, 18901eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1891cdef2b75aa60cde1ca00e0aa3f89139ac89c6ae4Anders Carlsson /// CK_BitCast - Used for reinterpret_cast. 1892cdef2b75aa60cde1ca00e0aa3f89139ac89c6ae4Anders Carlsson CK_BitCast, 18931eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1894e39a3894513349908cdb3beba2614e53cb288e6cDouglas Gregor /// CK_LValueBitCast - Used for reinterpret_cast of expressions to 1895e39a3894513349908cdb3beba2614e53cb288e6cDouglas Gregor /// a reference type. 1896e39a3894513349908cdb3beba2614e53cb288e6cDouglas Gregor CK_LValueBitCast, 1897e39a3894513349908cdb3beba2614e53cb288e6cDouglas Gregor 1898cdef2b75aa60cde1ca00e0aa3f89139ac89c6ae4Anders Carlsson /// CK_NoOp - Used for const_cast. 18993503d041ca8a3535a1c1a30005a6b18ae7aed5dbAnders Carlsson CK_NoOp, 19001eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 190111de6de25a0110cd7be97eef761ef3b189781da6Anders Carlsson /// CK_BaseToDerived - Base to derived class casts. 190211de6de25a0110cd7be97eef761ef3b189781da6Anders Carlsson CK_BaseToDerived, 190311de6de25a0110cd7be97eef761ef3b189781da6Anders Carlsson 19043503d041ca8a3535a1c1a30005a6b18ae7aed5dbAnders Carlsson /// CK_DerivedToBase - Derived to base class casts. 1905714179b179a31a0c3769a968ee18ba87b901b13fAnders Carlsson CK_DerivedToBase, 19061eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 190723cba801e11b03929c44f8cf54578305963a3476John McCall /// CK_UncheckedDerivedToBase - Derived to base class casts that 190823cba801e11b03929c44f8cf54578305963a3476John McCall /// assume that the derived pointer is not null. 190923cba801e11b03929c44f8cf54578305963a3476John McCall CK_UncheckedDerivedToBase, 191023cba801e11b03929c44f8cf54578305963a3476John McCall 1911714179b179a31a0c3769a968ee18ba87b901b13fAnders Carlsson /// CK_Dynamic - Dynamic cast. 19124d8673b645ad86e496b886a0f80b60763f67071dAnders Carlsson CK_Dynamic, 19131eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 19144d8673b645ad86e496b886a0f80b60763f67071dAnders Carlsson /// CK_ToUnion - Cast to union (GCC extension). 1915112a0a8ddf23f6d25e0920002d5d4c1df0515f86Anders Carlsson CK_ToUnion, 19161eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1917112a0a8ddf23f6d25e0920002d5d4c1df0515f86Anders Carlsson /// CK_ArrayToPointerDecay - Array to pointer decay. 191827a5b9b9babd1e4f8a19c5c9c0736c4b311c79b2Anders Carlsson CK_ArrayToPointerDecay, 19191eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1920b633c4ee622df81d4572ef57dac54ebed69bb9bfAnders Carlsson // CK_FunctionToPointerDecay - Function to pointer decay. 1921b633c4ee622df81d4572ef57dac54ebed69bb9bfAnders Carlsson CK_FunctionToPointerDecay, 19221eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 192327a5b9b9babd1e4f8a19c5c9c0736c4b311c79b2Anders Carlsson /// CK_NullToMemberPointer - Null pointer to member pointer. 192427a5b9b9babd1e4f8a19c5c9c0736c4b311c79b2Anders Carlsson CK_NullToMemberPointer, 19251eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 192627a5b9b9babd1e4f8a19c5c9c0736c4b311c79b2Anders Carlsson /// CK_BaseToDerivedMemberPointer - Member pointer in base class to 192727a5b9b9babd1e4f8a19c5c9c0736c4b311c79b2Anders Carlsson /// member pointer in derived class. 19289099ff0cf91ac9e0b2d5a142807fa384ce842fc4Fariborz Jahanian CK_BaseToDerivedMemberPointer, 19299099ff0cf91ac9e0b2d5a142807fa384ce842fc4Fariborz Jahanian 19301a31a18db9d657751f38c724adc0d62e86852bd7Anders Carlsson /// CK_DerivedToBaseMemberPointer - Member pointer in derived class to 19311a31a18db9d657751f38c724adc0d62e86852bd7Anders Carlsson /// member pointer in base class. 19321a31a18db9d657751f38c724adc0d62e86852bd7Anders Carlsson CK_DerivedToBaseMemberPointer, 1933c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 19341eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /// CK_UserDefinedConversion - Conversion using a user defined type 193558d3f1af9b4efa426826816a16894986b78b2692Fariborz Jahanian /// conversion function. 19367fe5d72fbc8605b60d42d32394248ea76cf763a0Fariborz Jahanian CK_UserDefinedConversion, 19377fe5d72fbc8605b60d42d32394248ea76cf763a0Fariborz Jahanian 19387fe5d72fbc8605b60d42d32394248ea76cf763a0Fariborz Jahanian /// CK_ConstructorConversion - Conversion by constructor 19397f9e646b7ed47bc8e9a60031ad0c2b55031e2077Anders Carlsson CK_ConstructorConversion, 1940c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 19417f9e646b7ed47bc8e9a60031ad0c2b55031e2077Anders Carlsson /// CK_IntegralToPointer - Integral to pointer 19427f9e646b7ed47bc8e9a60031ad0c2b55031e2077Anders Carlsson CK_IntegralToPointer, 1943c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 19447f9e646b7ed47bc8e9a60031ad0c2b55031e2077Anders Carlsson /// CK_PointerToIntegral - Pointer to integral 1945ebeaf2031c968143c531bfe232d7507f20c57347Anders Carlsson CK_PointerToIntegral, 1946c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 1947ebeaf2031c968143c531bfe232d7507f20c57347Anders Carlsson /// CK_ToVoid - Cast to void. 194816a8904f3f5ed19158657e1da95e5902fbee66f7Anders Carlsson CK_ToVoid, 1949c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 195016a8904f3f5ed19158657e1da95e5902fbee66f7Anders Carlsson /// CK_VectorSplat - Casting from an integer/floating type to an extended 1951c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt /// vector type with the same element type as the src type. Splats the 1952f67cea84bac1d3417f0baaf1fcbc86ee126e2d87Anders Carlsson /// src expression into the destination expression. 195382debc7d282e723e58d183bfa89ddc2500a8daafAnders Carlsson CK_VectorSplat, 1954c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 195582debc7d282e723e58d183bfa89ddc2500a8daafAnders Carlsson /// CK_IntegralCast - Casting between integral types of different size. 195682debc7d282e723e58d183bfa89ddc2500a8daafAnders Carlsson CK_IntegralCast, 195782debc7d282e723e58d183bfa89ddc2500a8daafAnders Carlsson 195882debc7d282e723e58d183bfa89ddc2500a8daafAnders Carlsson /// CK_IntegralToFloating - Integral to floating point. 195982debc7d282e723e58d183bfa89ddc2500a8daafAnders Carlsson CK_IntegralToFloating, 1960c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 196182debc7d282e723e58d183bfa89ddc2500a8daafAnders Carlsson /// CK_FloatingToIntegral - Floating point to integral. 196282debc7d282e723e58d183bfa89ddc2500a8daafAnders Carlsson CK_FloatingToIntegral, 1963c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 196482debc7d282e723e58d183bfa89ddc2500a8daafAnders Carlsson /// CK_FloatingCast - Casting between floating types of different size. 1965bc0e0781da778bd5eb41a810419912893ae20448Anders Carlsson CK_FloatingCast, 1966c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 1967bc0e0781da778bd5eb41a810419912893ae20448Anders Carlsson /// CK_MemberPointerToBoolean - Member pointer to boolean 196892ef5d75720c032808181133e4d7c5f82230237eFariborz Jahanian CK_MemberPointerToBoolean, 196992ef5d75720c032808181133e4d7c5f82230237eFariborz Jahanian 1970c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt /// CK_AnyPointerToObjCPointerCast - Casting any pointer to objective-c 197192ef5d75720c032808181133e4d7c5f82230237eFariborz Jahanian /// pointer 19723b27f1a80e4e433b503efd344c909eeafaa9033cFariborz Jahanian CK_AnyPointerToObjCPointerCast, 1973c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt /// CK_AnyPointerToBlockPointerCast - Casting any pointer to block 19743b27f1a80e4e433b503efd344c909eeafaa9033cFariborz Jahanian /// pointer 1975569c3166874324c24011f8ade6978421f0d39b3cDouglas Gregor CK_AnyPointerToBlockPointerCast, 1976bc0e0781da778bd5eb41a810419912893ae20448Anders Carlsson 1977569c3166874324c24011f8ade6978421f0d39b3cDouglas Gregor /// \brief Converting between two Objective-C object types, which 1978569c3166874324c24011f8ade6978421f0d39b3cDouglas Gregor /// can occur when performing reference binding to an Objective-C 1979569c3166874324c24011f8ade6978421f0d39b3cDouglas Gregor /// object. 1980569c3166874324c24011f8ade6978421f0d39b3cDouglas Gregor CK_ObjCObjectLValueCast 1981cdef2b75aa60cde1ca00e0aa3f89139ac89c6ae4Anders Carlsson }; 19821eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1983cdef2b75aa60cde1ca00e0aa3f89139ac89c6ae4Anders Carlssonprivate: 1984f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall unsigned Kind : 5; 1985f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall unsigned BasePathSize : BitsRemaining - 5; 19860835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis Stmt *Op; 1987409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson 19887ab9d574d27ecee1f130e5755aa403e5ab529b6bAnders Carlsson void CheckBasePath() const { 1989409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson#ifndef NDEBUG 1990409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson switch (getCastKind()) { 19915cf86ba6b5a724bf91cb52feade1158f1fbeb605Anders Carlsson case CK_DerivedToBase: 1992cee22421929c91b481f4d1bb85cd48c0f6b7510bAnders Carlsson case CK_UncheckedDerivedToBase: 1993cee22421929c91b481f4d1bb85cd48c0f6b7510bAnders Carlsson case CK_DerivedToBaseMemberPointer: 1994409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson case CK_BaseToDerived: 1995409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson case CK_BaseToDerivedMemberPointer: 1996f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall assert(!path_empty() && "Cast kind should have a base path!"); 1997f9d68e1dd015972318b2448f75115ff4fc3d5008Anders Carlsson break; 1998409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson 1999409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson // These should not have an inheritance path. 2000409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson case CK_Unknown: 2001409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson case CK_BitCast: 2002e39a3894513349908cdb3beba2614e53cb288e6cDouglas Gregor case CK_LValueBitCast: 2003409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson case CK_NoOp: 2004409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson case CK_Dynamic: 2005409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson case CK_ToUnion: 2006409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson case CK_ArrayToPointerDecay: 2007409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson case CK_FunctionToPointerDecay: 2008409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson case CK_NullToMemberPointer: 2009409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson case CK_UserDefinedConversion: 2010409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson case CK_ConstructorConversion: 2011409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson case CK_IntegralToPointer: 2012409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson case CK_PointerToIntegral: 2013409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson case CK_ToVoid: 2014409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson case CK_VectorSplat: 2015409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson case CK_IntegralCast: 2016409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson case CK_IntegralToFloating: 2017409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson case CK_FloatingToIntegral: 2018409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson case CK_FloatingCast: 2019409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson case CK_MemberPointerToBoolean: 2020409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson case CK_AnyPointerToObjCPointerCast: 2021409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson case CK_AnyPointerToBlockPointerCast: 2022569c3166874324c24011f8ade6978421f0d39b3cDouglas Gregor case CK_ObjCObjectLValueCast: 2023f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall assert(path_empty() && "Cast kind should not have a base path!"); 2024409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson break; 2025409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson } 2026409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson#endif 2027409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson } 2028409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson 2029f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall const CXXBaseSpecifier * const *path_buffer() const { 2030f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall return const_cast<CastExpr*>(this)->path_buffer(); 2031f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall } 2032f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall CXXBaseSpecifier **path_buffer(); 2033f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall 20340835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidisprotected: 2035409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson CastExpr(StmtClass SC, QualType ty, const CastKind kind, Expr *op, 2036f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall unsigned BasePathSize) : 2037898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor Expr(SC, ty, 2038898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // Cast expressions are type-dependent if the type is 2039898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // dependent (C++ [temp.dep.expr]p3). 2040898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor ty->isDependentType(), 2041898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // Cast expressions are value-dependent if the type is 2042898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // dependent or if the subexpression is value-dependent. 20431eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump ty->isDependentType() || (op && op->isValueDependent())), 2044f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall Kind(kind), BasePathSize(BasePathSize), Op(op) { 2045f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall CheckBasePath(); 2046f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall } 20471eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2048087fd536809ebe754d91c641a98917e02dd7452dDouglas Gregor /// \brief Construct an empty cast. 2049f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall CastExpr(StmtClass SC, EmptyShell Empty, unsigned BasePathSize) 2050f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall : Expr(SC, Empty), BasePathSize(BasePathSize) { } 20511eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 20520835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidispublic: 2053f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall CastKind getCastKind() const { return static_cast<CastKind>(Kind); } 2054cdef2b75aa60cde1ca00e0aa3f89139ac89c6ae4Anders Carlsson void setCastKind(CastKind K) { Kind = K; } 2055f8ec55a104e55961f8666f773dce99bbc628298fAnders Carlsson const char *getCastKindName() const; 2056f8ec55a104e55961f8666f773dce99bbc628298fAnders Carlsson 20570835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis Expr *getSubExpr() { return cast<Expr>(Op); } 20580835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis const Expr *getSubExpr() const { return cast<Expr>(Op); } 2059087fd536809ebe754d91c641a98917e02dd7452dDouglas Gregor void setSubExpr(Expr *E) { Op = E; } 2060087fd536809ebe754d91c641a98917e02dd7452dDouglas Gregor 20616eef519fc8a97bb7ca6066f23d35e10f06b2c1b5Douglas Gregor /// \brief Retrieve the cast subexpression as it was written in the source 20626eef519fc8a97bb7ca6066f23d35e10f06b2c1b5Douglas Gregor /// code, looking through any implicit casts or other intermediate nodes 20636eef519fc8a97bb7ca6066f23d35e10f06b2c1b5Douglas Gregor /// introduced by semantic analysis. 20646eef519fc8a97bb7ca6066f23d35e10f06b2c1b5Douglas Gregor Expr *getSubExprAsWritten(); 20656eef519fc8a97bb7ca6066f23d35e10f06b2c1b5Douglas Gregor const Expr *getSubExprAsWritten() const { 20666eef519fc8a97bb7ca6066f23d35e10f06b2c1b5Douglas Gregor return const_cast<CastExpr *>(this)->getSubExprAsWritten(); 20676eef519fc8a97bb7ca6066f23d35e10f06b2c1b5Douglas Gregor } 206841b2dcd465f1e438502c420effc9d0c747f9db8fAnders Carlsson 2069f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall typedef CXXBaseSpecifier **path_iterator; 2070f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall typedef const CXXBaseSpecifier * const *path_const_iterator; 2071f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall bool path_empty() const { return BasePathSize == 0; } 2072f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall unsigned path_size() const { return BasePathSize; } 2073f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall path_iterator path_begin() { return path_buffer(); } 2074f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall path_iterator path_end() { return path_buffer() + path_size(); } 2075f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall path_const_iterator path_begin() const { return path_buffer(); } 2076f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall path_const_iterator path_end() const { return path_buffer() + path_size(); } 2077f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall 2078f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall void setCastPath(const CXXCastPath &Path); 207941b2dcd465f1e438502c420effc9d0c747f9db8fAnders Carlsson 20801eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 20814bfe1968410ea8ffe3b4f629addd7c4bcf484765Sean Hunt return T->getStmtClass() >= firstCastExprConstant && 20824bfe1968410ea8ffe3b4f629addd7c4bcf484765Sean Hunt T->getStmtClass() <= lastCastExprConstant; 20830835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis } 20840835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis static bool classof(const CastExpr *) { return true; } 20851eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 20860835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis // Iterators 20870835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis virtual child_iterator child_begin(); 20880835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis virtual child_iterator child_end(); 20890835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis}; 20900835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis 209149badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// ImplicitCastExpr - Allows us to explicitly represent implicit type 209249badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// conversions, which have no direct representation in the original 209349badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// source code. For example: converting T[]->T*, void f()->void 209449badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// (*f)(), float->double, short->int, etc. 209549b4526992a8c8a6a290aa3efa9828154a24af8dSteve Naroff/// 2096bf3af056289893f58d37b05a2c80970708781d61Douglas Gregor/// In C, implicit casts always produce rvalues. However, in C++, an 2097bf3af056289893f58d37b05a2c80970708781d61Douglas Gregor/// implicit cast whose result is being bound to a reference will be 2098906082edf2aea1c6de2926f93a8d7121e49d2a54Sebastian Redl/// an lvalue or xvalue. For example: 2099bf3af056289893f58d37b05a2c80970708781d61Douglas Gregor/// 2100bf3af056289893f58d37b05a2c80970708781d61Douglas Gregor/// @code 2101bf3af056289893f58d37b05a2c80970708781d61Douglas Gregor/// class Base { }; 2102bf3af056289893f58d37b05a2c80970708781d61Douglas Gregor/// class Derived : public Base { }; 2103906082edf2aea1c6de2926f93a8d7121e49d2a54Sebastian Redl/// Derived &&ref(); 21041eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// void f(Derived d) { 2105906082edf2aea1c6de2926f93a8d7121e49d2a54Sebastian Redl/// Base& b = d; // initializer is an ImplicitCastExpr 2106906082edf2aea1c6de2926f93a8d7121e49d2a54Sebastian Redl/// // to an lvalue of type Base 2107906082edf2aea1c6de2926f93a8d7121e49d2a54Sebastian Redl/// Base&& r = ref(); // initializer is an ImplicitCastExpr 2108906082edf2aea1c6de2926f93a8d7121e49d2a54Sebastian Redl/// // to an xvalue of type Base 2109bf3af056289893f58d37b05a2c80970708781d61Douglas Gregor/// } 2110bf3af056289893f58d37b05a2c80970708781d61Douglas Gregor/// @endcode 21110835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidisclass ImplicitCastExpr : public CastExpr { 2112906082edf2aea1c6de2926f93a8d7121e49d2a54Sebastian Redlpublic: 2113906082edf2aea1c6de2926f93a8d7121e49d2a54Sebastian Redl enum ResultCategory { 2114906082edf2aea1c6de2926f93a8d7121e49d2a54Sebastian Redl RValue, LValue, XValue 2115906082edf2aea1c6de2926f93a8d7121e49d2a54Sebastian Redl }; 2116906082edf2aea1c6de2926f93a8d7121e49d2a54Sebastian Redl 2117906082edf2aea1c6de2926f93a8d7121e49d2a54Sebastian Redlprivate: 2118906082edf2aea1c6de2926f93a8d7121e49d2a54Sebastian Redl /// Category - The category this cast produces. 2119906082edf2aea1c6de2926f93a8d7121e49d2a54Sebastian Redl ResultCategory Category; 2120eb8f3063257a392f15aea48d42fb73ec51afc548Douglas Gregor 2121f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall ImplicitCastExpr(QualType ty, CastKind kind, Expr *op, 2122f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall unsigned BasePathLength, ResultCategory Cat) 2123f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall : CastExpr(ImplicitCastExprClass, ty, kind, op, BasePathLength), 2124f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall Category(Cat) { } 212590045e8ebabf50d6f1b3a67081a621b20b5e5341Steve Naroff 2126087fd536809ebe754d91c641a98917e02dd7452dDouglas Gregor /// \brief Construct an empty implicit cast. 2127f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall explicit ImplicitCastExpr(EmptyShell Shell, unsigned PathSize) 2128f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall : CastExpr(ImplicitCastExprClass, Shell, PathSize) { } 2129f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall 2130f871d0cc377a1367b519a6cce26be74607566ebaJohn McCallpublic: 2131f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall enum OnStack_t { OnStack }; 2132f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall ImplicitCastExpr(OnStack_t _, QualType ty, CastKind kind, Expr *op, 2133f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall ResultCategory Cat) 2134f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall : CastExpr(ImplicitCastExprClass, ty, kind, op, 0), 2135f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall Category(Cat) { } 2136f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall 2137f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall static ImplicitCastExpr *Create(ASTContext &Context, QualType T, 2138f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall CastKind Kind, Expr *Operand, 2139f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall const CXXCastPath *BasePath, 2140f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall ResultCategory Cat); 2141f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall 2142f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall static ImplicitCastExpr *CreateEmpty(ASTContext &Context, unsigned PathSize); 2143087fd536809ebe754d91c641a98917e02dd7452dDouglas Gregor 21440835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis virtual SourceRange getSourceRange() const { 21450835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis return getSubExpr()->getSourceRange(); 21460835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis } 214790045e8ebabf50d6f1b3a67081a621b20b5e5341Steve Naroff 2148906082edf2aea1c6de2926f93a8d7121e49d2a54Sebastian Redl /// getCategory - The value category this cast produces. 2149906082edf2aea1c6de2926f93a8d7121e49d2a54Sebastian Redl ResultCategory getCategory() const { return Category; } 2150eb8f3063257a392f15aea48d42fb73ec51afc548Douglas Gregor 2151906082edf2aea1c6de2926f93a8d7121e49d2a54Sebastian Redl /// setCategory - Set the value category this cast produces. 2152906082edf2aea1c6de2926f93a8d7121e49d2a54Sebastian Redl void setCategory(ResultCategory Cat) { Category = Cat; } 2153eb8f3063257a392f15aea48d42fb73ec51afc548Douglas Gregor 21541eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 21551eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == ImplicitCastExprClass; 215649b4526992a8c8a6a290aa3efa9828154a24af8dSteve Naroff } 215749b4526992a8c8a6a290aa3efa9828154a24af8dSteve Naroff static bool classof(const ImplicitCastExpr *) { return true; } 215849b4526992a8c8a6a290aa3efa9828154a24af8dSteve Naroff}; 215949b4526992a8c8a6a290aa3efa9828154a24af8dSteve Naroff 216049badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// ExplicitCastExpr - An explicit cast written in the source 21611eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// code. 216249badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// 216349badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// This class is effectively an abstract class, because it provides 216449badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// the basic representation of an explicitly-written cast without 216549badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// specifying which kind of cast (C cast, functional cast, static 216649badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// cast, etc.) was written; specific derived classes represent the 216749badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// particular style of cast and its location information. 21685f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 216949badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// Unlike implicit casts, explicit cast nodes have two different 217049badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// types: the type that was written into the source code, and the 217149badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// actual type of the expression as determined by semantic 217249badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// analysis. These types may differ slightly. For example, in C++ one 217349badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// can cast to a reference type, which indicates that the resulting 2174906082edf2aea1c6de2926f93a8d7121e49d2a54Sebastian Redl/// expression will be an lvalue or xvalue. The reference type, however, 2175906082edf2aea1c6de2926f93a8d7121e49d2a54Sebastian Redl/// will not be used as the type of the expression. 21760835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidisclass ExplicitCastExpr : public CastExpr { 21779d125033a9853f3b572a4c9e2f9e2d4e5e346973John McCall /// TInfo - Source type info for the (written) type 21789d125033a9853f3b572a4c9e2f9e2d4e5e346973John McCall /// this expression is casting to. 21799d125033a9853f3b572a4c9e2f9e2d4e5e346973John McCall TypeSourceInfo *TInfo; 218049badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor 218149badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregorprotected: 2182c0a2fd8f092722c8f78b566ac4506a21437040e9Anders Carlsson ExplicitCastExpr(StmtClass SC, QualType exprTy, CastKind kind, 2183f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall Expr *op, unsigned PathSize, TypeSourceInfo *writtenTy) 2184f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall : CastExpr(SC, exprTy, kind, op, PathSize), TInfo(writtenTy) {} 218549badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor 2186db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor /// \brief Construct an empty explicit cast. 2187f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall ExplicitCastExpr(StmtClass SC, EmptyShell Shell, unsigned PathSize) 2188f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall : CastExpr(SC, Shell, PathSize) { } 2189db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor 219049badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregorpublic: 21919d125033a9853f3b572a4c9e2f9e2d4e5e346973John McCall /// getTypeInfoAsWritten - Returns the type source info for the type 21929d125033a9853f3b572a4c9e2f9e2d4e5e346973John McCall /// that this expression is casting to. 21939d125033a9853f3b572a4c9e2f9e2d4e5e346973John McCall TypeSourceInfo *getTypeInfoAsWritten() const { return TInfo; } 21949d125033a9853f3b572a4c9e2f9e2d4e5e346973John McCall void setTypeInfoAsWritten(TypeSourceInfo *writtenTy) { TInfo = writtenTy; } 21959d125033a9853f3b572a4c9e2f9e2d4e5e346973John McCall 219649badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor /// getTypeAsWritten - Returns the type that this expression is 219749badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor /// casting to, as written in the source code. 21989d125033a9853f3b572a4c9e2f9e2d4e5e346973John McCall QualType getTypeAsWritten() const { return TInfo->getType(); } 219949badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor 22001eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 22014bfe1968410ea8ffe3b4f629addd7c4bcf484765Sean Hunt return T->getStmtClass() >= firstExplicitCastExprConstant && 22024bfe1968410ea8ffe3b4f629addd7c4bcf484765Sean Hunt T->getStmtClass() <= lastExplicitCastExprConstant; 220349badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor } 220449badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor static bool classof(const ExplicitCastExpr *) { return true; } 220549badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor}; 220649badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor 22076eec8e883de118b431e3ead5b1e604a6ac68ff6bDouglas Gregor/// CStyleCastExpr - An explicit cast in C (C99 6.5.4) or a C-style 220849badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// cast in C++ (C++ [expr.cast]), which uses the syntax 220949badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// (Type)expr. For example: @c (int)f. 22106eec8e883de118b431e3ead5b1e604a6ac68ff6bDouglas Gregorclass CStyleCastExpr : public ExplicitCastExpr { 2211b2f9e516327310d95840d442416084508f80c183Steve Naroff SourceLocation LPLoc; // the location of the left paren 2212b2f9e516327310d95840d442416084508f80c183Steve Naroff SourceLocation RPLoc; // the location of the right paren 2213f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall 22149d125033a9853f3b572a4c9e2f9e2d4e5e346973John McCall CStyleCastExpr(QualType exprTy, CastKind kind, Expr *op, 2215f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall unsigned PathSize, TypeSourceInfo *writtenTy, 221641b2dcd465f1e438502c420effc9d0c747f9db8fAnders Carlsson SourceLocation l, SourceLocation r) 2217f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall : ExplicitCastExpr(CStyleCastExprClass, exprTy, kind, op, PathSize, 221841b2dcd465f1e438502c420effc9d0c747f9db8fAnders Carlsson writtenTy), LPLoc(l), RPLoc(r) {} 221949b4526992a8c8a6a290aa3efa9828154a24af8dSteve Naroff 2220db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor /// \brief Construct an empty C-style explicit cast. 2221f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall explicit CStyleCastExpr(EmptyShell Shell, unsigned PathSize) 2222f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall : ExplicitCastExpr(CStyleCastExprClass, Shell, PathSize) { } 2223f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall 2224f871d0cc377a1367b519a6cce26be74607566ebaJohn McCallpublic: 2225f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall static CStyleCastExpr *Create(ASTContext &Context, QualType T, CastKind K, 2226f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall Expr *Op, const CXXCastPath *BasePath, 2227f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall TypeSourceInfo *WrittenTy, SourceLocation L, 2228f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall SourceLocation R); 2229f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall 2230f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall static CStyleCastExpr *CreateEmpty(ASTContext &Context, unsigned PathSize); 2231db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor 2232b2f9e516327310d95840d442416084508f80c183Steve Naroff SourceLocation getLParenLoc() const { return LPLoc; } 2233db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor void setLParenLoc(SourceLocation L) { LPLoc = L; } 2234db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor 2235b2f9e516327310d95840d442416084508f80c183Steve Naroff SourceLocation getRParenLoc() const { return RPLoc; } 2236db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor void setRParenLoc(SourceLocation L) { RPLoc = L; } 2237db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor 22385f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer virtual SourceRange getSourceRange() const { 2239b2f9e516327310d95840d442416084508f80c183Steve Naroff return SourceRange(LPLoc, getSubExpr()->getSourceRange().getEnd()); 22405f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 22411eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 22421eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == CStyleCastExprClass; 22435f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 22446eec8e883de118b431e3ead5b1e604a6ac68ff6bDouglas Gregor static bool classof(const CStyleCastExpr *) { return true; } 22455f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 22465f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 22473fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// \brief A builtin binary operation expression such as "x + y" or "x <= y". 22483fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// 22493fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// This expression node kind describes a builtin binary operation, 22503fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// such as "x + y" for integer values "x" and "y". The operands will 22513fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// already have been converted to appropriate types (e.g., by 22523fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// performing promotions or conversions). 22533fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// 22543fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// In C++, where operators may be overloaded, a different kind of 22553fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// expression node (CXXOperatorCallExpr) is used to express the 22563fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// invocation of an overloaded operator with operator syntax. Within 22573fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// a C++ template, whether BinaryOperator or CXXOperatorCallExpr is 22583fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// used to store an expression "x + y" depends on the subexpressions 22593fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// for x and y. If neither x or y is type-dependent, and the "+" 22603fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// operator resolves to a built-in operation, BinaryOperator will be 22613fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// used to express the computation (x and y may still be 22623fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// value-dependent). If either x or y is type-dependent, or if the 22633fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// "+" resolves to an overloaded operator, CXXOperatorCallExpr will 22643fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// be used to express the computation. 22655f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass BinaryOperator : public Expr { 22665f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 22675f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer enum Opcode { 22685f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // Operators listed in order of precedence. 226903d6fb99224c36935c9af9f4785cb33453c99b2bChris Lattner // Note that additions to this should also update the StmtVisitor class. 2270224605064a4ef87d1c3d35ad1cb363f8b534012bSebastian Redl PtrMemD, PtrMemI, // [C++ 5.5] Pointer-to-member operators. 22715f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Mul, Div, Rem, // [C99 6.5.5] Multiplicative operators. 22725f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Add, Sub, // [C99 6.5.6] Additive operators. 22735f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Shl, Shr, // [C99 6.5.7] Bitwise shift operators. 22745f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer LT, GT, LE, GE, // [C99 6.5.8] Relational operators. 22755f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer EQ, NE, // [C99 6.5.9] Equality operators. 22765f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer And, // [C99 6.5.10] Bitwise AND operator. 22775f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Xor, // [C99 6.5.11] Bitwise XOR operator. 22785f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Or, // [C99 6.5.12] Bitwise OR operator. 22795f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer LAnd, // [C99 6.5.13] Logical AND operator. 22805f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer LOr, // [C99 6.5.14] Logical OR operator. 22815f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Assign, MulAssign,// [C99 6.5.16] Assignment operators. 22825f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer DivAssign, RemAssign, 22835f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer AddAssign, SubAssign, 22845f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ShlAssign, ShrAssign, 22855f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer AndAssign, XorAssign, 22865f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer OrAssign, 22875f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Comma // [C99 6.5.17] Comma operator. 22885f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer }; 228917d1b2ac9f8371a0a2e79d4f8e0008658164f080Chris Lattnerprivate: 229017d1b2ac9f8371a0a2e79d4f8e0008658164f080Chris Lattner enum { LHS, RHS, END_EXPR }; 22915549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Stmt* SubExprs[END_EXPR]; 229217d1b2ac9f8371a0a2e79d4f8e0008658164f080Chris Lattner Opcode Opc; 229317d1b2ac9f8371a0a2e79d4f8e0008658164f080Chris Lattner SourceLocation OpLoc; 22941eb4433ac451dc16f4133a88af2d002ac26c58efMike Stumppublic: 22951eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 229617d1b2ac9f8371a0a2e79d4f8e0008658164f080Chris Lattner BinaryOperator(Expr *lhs, Expr *rhs, Opcode opc, QualType ResTy, 229717d1b2ac9f8371a0a2e79d4f8e0008658164f080Chris Lattner SourceLocation opLoc) 2298898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor : Expr(BinaryOperatorClass, ResTy, 2299898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor lhs->isTypeDependent() || rhs->isTypeDependent(), 23001eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump lhs->isValueDependent() || rhs->isValueDependent()), 2301898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor Opc(opc), OpLoc(opLoc) { 23021237c673c07f9d827129ba02720108816abde562Ted Kremenek SubExprs[LHS] = lhs; 23031237c673c07f9d827129ba02720108816abde562Ted Kremenek SubExprs[RHS] = rhs; 23041eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump assert(!isCompoundAssignmentOp() && 23055f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer "Use ArithAssignBinaryOperator for compound assignments"); 23065f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 23075f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 2308db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor /// \brief Construct an empty binary operator. 23091eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump explicit BinaryOperator(EmptyShell Empty) 2310db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor : Expr(BinaryOperatorClass, Empty), Opc(Comma) { } 2311db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor 231217d1b2ac9f8371a0a2e79d4f8e0008658164f080Chris Lattner SourceLocation getOperatorLoc() const { return OpLoc; } 2313db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor void setOperatorLoc(SourceLocation L) { OpLoc = L; } 2314db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor 23155f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Opcode getOpcode() const { return Opc; } 2316db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor void setOpcode(Opcode O) { Opc = O; } 2317db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor 23185549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getLHS() const { return cast<Expr>(SubExprs[LHS]); } 2319db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor void setLHS(Expr *E) { SubExprs[LHS] = E; } 23205549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getRHS() const { return cast<Expr>(SubExprs[RHS]); } 2321db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor void setRHS(Expr *E) { SubExprs[RHS] = E; } 2322db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor 23235f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer virtual SourceRange getSourceRange() const { 23245f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return SourceRange(getLHS()->getLocStart(), getRHS()->getLocEnd()); 23255f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 23261eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 23275f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// getOpcodeStr - Turn an Opcode enum value into the punctuation char it 23285f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// corresponds to, e.g. "<<=". 23295f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static const char *getOpcodeStr(Opcode Op); 23305f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 2331a84c02d0f4d63975a1c52b9bb8308d88e9d79352Ted Kremenek const char *getOpcodeStr() const { return getOpcodeStr(Opc); } 2332a84c02d0f4d63975a1c52b9bb8308d88e9d79352Ted Kremenek 2333063daf6e196c51f162e0485478355d8e280eef5cDouglas Gregor /// \brief Retrieve the binary opcode that corresponds to the given 2334063daf6e196c51f162e0485478355d8e280eef5cDouglas Gregor /// overloaded operator. 2335063daf6e196c51f162e0485478355d8e280eef5cDouglas Gregor static Opcode getOverloadedOpcode(OverloadedOperatorKind OO); 2336063daf6e196c51f162e0485478355d8e280eef5cDouglas Gregor 2337063daf6e196c51f162e0485478355d8e280eef5cDouglas Gregor /// \brief Retrieve the overloaded operator kind that corresponds to 2338063daf6e196c51f162e0485478355d8e280eef5cDouglas Gregor /// the given binary opcode. 2339063daf6e196c51f162e0485478355d8e280eef5cDouglas Gregor static OverloadedOperatorKind getOverloadedOperator(Opcode Opc); 2340063daf6e196c51f162e0485478355d8e280eef5cDouglas Gregor 23415f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// predicates to categorize the respective opcodes. 23425f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool isMultiplicativeOp() const { return Opc >= Mul && Opc <= Rem; } 2343ba0f61cf5363f80e3241dc754235dfb246afe320Jordy Rose static bool isAdditiveOp(Opcode Opc) { return Opc == Add || Opc == Sub; } 2344ba0f61cf5363f80e3241dc754235dfb246afe320Jordy Rose bool isAdditiveOp() const { return isAdditiveOp(Opc); } 234540a5ef90ac8d3f29bc8fe4ff80e00eaf3ef5b79fTed Kremenek static bool isShiftOp(Opcode Opc) { return Opc == Shl || Opc == Shr; } 234640a5ef90ac8d3f29bc8fe4ff80e00eaf3ef5b79fTed Kremenek bool isShiftOp() const { return isShiftOp(Opc); } 2347aee3c9375f97a49edef2a36f15df6abd9748e2a1Sebastian Redl 2348aee3c9375f97a49edef2a36f15df6abd9748e2a1Sebastian Redl static bool isBitwiseOp(Opcode Opc) { return Opc >= And && Opc <= Or; } 2349aee3c9375f97a49edef2a36f15df6abd9748e2a1Sebastian Redl bool isBitwiseOp() const { return isBitwiseOp(Opc); } 2350f2da7a06f6b98c3886d9b871ab839f5085b1c238Ted Kremenek 2351f2da7a06f6b98c3886d9b871ab839f5085b1c238Ted Kremenek static bool isRelationalOp(Opcode Opc) { return Opc >= LT && Opc <= GE; } 2352f2da7a06f6b98c3886d9b871ab839f5085b1c238Ted Kremenek bool isRelationalOp() const { return isRelationalOp(Opc); } 2353f2da7a06f6b98c3886d9b871ab839f5085b1c238Ted Kremenek 23541eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool isEqualityOp(Opcode Opc) { return Opc == EQ || Opc == NE; } 2355f2da7a06f6b98c3886d9b871ab839f5085b1c238Ted Kremenek bool isEqualityOp() const { return isEqualityOp(Opc); } 23561eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2357aee3c9375f97a49edef2a36f15df6abd9748e2a1Sebastian Redl static bool isComparisonOp(Opcode Opc) { return Opc >= LT && Opc <= NE; } 2358aee3c9375f97a49edef2a36f15df6abd9748e2a1Sebastian Redl bool isComparisonOp() const { return isComparisonOp(Opc); } 2359aee3c9375f97a49edef2a36f15df6abd9748e2a1Sebastian Redl 2360f2da7a06f6b98c3886d9b871ab839f5085b1c238Ted Kremenek static bool isLogicalOp(Opcode Opc) { return Opc == LAnd || Opc == LOr; } 2361f2da7a06f6b98c3886d9b871ab839f5085b1c238Ted Kremenek bool isLogicalOp() const { return isLogicalOp(Opc); } 2362f2da7a06f6b98c3886d9b871ab839f5085b1c238Ted Kremenek 23635f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool isAssignmentOp() const { return Opc >= Assign && Opc <= OrAssign; } 23645f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool isCompoundAssignmentOp() const { return Opc > Assign && Opc <= OrAssign;} 23655f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool isShiftAssignOp() const { return Opc == ShlAssign || Opc == ShrAssign; } 23661eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 23671eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *S) { 23684bfe1968410ea8ffe3b4f629addd7c4bcf484765Sean Hunt return S->getStmtClass() >= firstBinaryOperatorConstant && 23694bfe1968410ea8ffe3b4f629addd7c4bcf484765Sean Hunt S->getStmtClass() <= lastBinaryOperatorConstant; 23705f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 23715f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const BinaryOperator *) { return true; } 23721237c673c07f9d827129ba02720108816abde562Ted Kremenek 23731237c673c07f9d827129ba02720108816abde562Ted Kremenek // Iterators 23741237c673c07f9d827129ba02720108816abde562Ted Kremenek virtual child_iterator child_begin(); 23751237c673c07f9d827129ba02720108816abde562Ted Kremenek virtual child_iterator child_end(); 23761237c673c07f9d827129ba02720108816abde562Ted Kremenek 23775f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerprotected: 237817d1b2ac9f8371a0a2e79d4f8e0008658164f080Chris Lattner BinaryOperator(Expr *lhs, Expr *rhs, Opcode opc, QualType ResTy, 23792333f7727f97018d6742e1e0938133bcfad967abEli Friedman SourceLocation opLoc, bool dead) 23802333f7727f97018d6742e1e0938133bcfad967abEli Friedman : Expr(CompoundAssignOperatorClass, ResTy, 23812333f7727f97018d6742e1e0938133bcfad967abEli Friedman lhs->isTypeDependent() || rhs->isTypeDependent(), 23822333f7727f97018d6742e1e0938133bcfad967abEli Friedman lhs->isValueDependent() || rhs->isValueDependent()), 23832333f7727f97018d6742e1e0938133bcfad967abEli Friedman Opc(opc), OpLoc(opLoc) { 23841237c673c07f9d827129ba02720108816abde562Ted Kremenek SubExprs[LHS] = lhs; 23851237c673c07f9d827129ba02720108816abde562Ted Kremenek SubExprs[RHS] = rhs; 23865f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 2387ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor 23881eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump BinaryOperator(StmtClass SC, EmptyShell Empty) 2389ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor : Expr(SC, Empty), Opc(MulAssign) { } 23905f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 23915f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 23925f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// CompoundAssignOperator - For compound assignments (e.g. +=), we keep 23935f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// track of the type the operation is performed in. Due to the semantics of 23945f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// these operators, the operands are promoted, the aritmetic performed, an 23955f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// implicit conversion back to the result type done, then the assignment takes 23965f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// place. This captures the intermediate type which the computation is done 23975f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// in. 23985f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass CompoundAssignOperator : public BinaryOperator { 2399ab3a852ae713189444dcbf75e70accf1e8c2b7f2Eli Friedman QualType ComputationLHSType; 2400ab3a852ae713189444dcbf75e70accf1e8c2b7f2Eli Friedman QualType ComputationResultType; 24015f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 24025f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer CompoundAssignOperator(Expr *lhs, Expr *rhs, Opcode opc, 2403ab3a852ae713189444dcbf75e70accf1e8c2b7f2Eli Friedman QualType ResType, QualType CompLHSType, 2404ab3a852ae713189444dcbf75e70accf1e8c2b7f2Eli Friedman QualType CompResultType, 240517d1b2ac9f8371a0a2e79d4f8e0008658164f080Chris Lattner SourceLocation OpLoc) 240617d1b2ac9f8371a0a2e79d4f8e0008658164f080Chris Lattner : BinaryOperator(lhs, rhs, opc, ResType, OpLoc, true), 2407ab3a852ae713189444dcbf75e70accf1e8c2b7f2Eli Friedman ComputationLHSType(CompLHSType), 2408ab3a852ae713189444dcbf75e70accf1e8c2b7f2Eli Friedman ComputationResultType(CompResultType) { 24091eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump assert(isCompoundAssignmentOp() && 24105f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer "Only should be used for compound assignments"); 24115f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 24125f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 2413ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor /// \brief Build an empty compound assignment operator expression. 2414ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor explicit CompoundAssignOperator(EmptyShell Empty) 2415ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor : BinaryOperator(CompoundAssignOperatorClass, Empty) { } 2416ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor 2417ab3a852ae713189444dcbf75e70accf1e8c2b7f2Eli Friedman // The two computation types are the type the LHS is converted 2418ab3a852ae713189444dcbf75e70accf1e8c2b7f2Eli Friedman // to for the computation and the type of the result; the two are 2419ab3a852ae713189444dcbf75e70accf1e8c2b7f2Eli Friedman // distinct in a few cases (specifically, int+=ptr and ptr-=ptr). 2420ab3a852ae713189444dcbf75e70accf1e8c2b7f2Eli Friedman QualType getComputationLHSType() const { return ComputationLHSType; } 2421ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor void setComputationLHSType(QualType T) { ComputationLHSType = T; } 2422ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor 2423ab3a852ae713189444dcbf75e70accf1e8c2b7f2Eli Friedman QualType getComputationResultType() const { return ComputationResultType; } 2424ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor void setComputationResultType(QualType T) { ComputationResultType = T; } 2425ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor 24265f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const CompoundAssignOperator *) { return true; } 24271eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *S) { 24281eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return S->getStmtClass() == CompoundAssignOperatorClass; 24295f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 24305f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 24315f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 24325f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// ConditionalOperator - The ?: operator. Note that LHS may be null when the 24335f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// GNU "missing LHS" extension is in use. 24345f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 24355f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass ConditionalOperator : public Expr { 24361237c673c07f9d827129ba02720108816abde562Ted Kremenek enum { COND, LHS, RHS, END_EXPR }; 24375549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Stmt* SubExprs[END_EXPR]; // Left/Middle/Right hand sides. 243847e1f7c68bf375cac470fdb2b599ddbb395aeb52Douglas Gregor SourceLocation QuestionLoc, ColonLoc; 24395f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 244047e1f7c68bf375cac470fdb2b599ddbb395aeb52Douglas Gregor ConditionalOperator(Expr *cond, SourceLocation QLoc, Expr *lhs, 244147e1f7c68bf375cac470fdb2b599ddbb395aeb52Douglas Gregor SourceLocation CLoc, Expr *rhs, QualType t) 2442898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor : Expr(ConditionalOperatorClass, t, 2443898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // FIXME: the type of the conditional operator doesn't 2444898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // depend on the type of the conditional, but the standard 2445898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // seems to imply that it could. File a bug! 2446898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor ((lhs && lhs->isTypeDependent()) || (rhs && rhs->isTypeDependent())), 24471eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump (cond->isValueDependent() || 2448898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor (lhs && lhs->isValueDependent()) || 244947e1f7c68bf375cac470fdb2b599ddbb395aeb52Douglas Gregor (rhs && rhs->isValueDependent()))), 245047e1f7c68bf375cac470fdb2b599ddbb395aeb52Douglas Gregor QuestionLoc(QLoc), 245147e1f7c68bf375cac470fdb2b599ddbb395aeb52Douglas Gregor ColonLoc(CLoc) { 24521237c673c07f9d827129ba02720108816abde562Ted Kremenek SubExprs[COND] = cond; 24531237c673c07f9d827129ba02720108816abde562Ted Kremenek SubExprs[LHS] = lhs; 24541237c673c07f9d827129ba02720108816abde562Ted Kremenek SubExprs[RHS] = rhs; 24551237c673c07f9d827129ba02720108816abde562Ted Kremenek } 24565f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 2457ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor /// \brief Build an empty conditional operator. 2458ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor explicit ConditionalOperator(EmptyShell Empty) 2459ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor : Expr(ConditionalOperatorClass, Empty) { } 2460ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor 2461395a2abf0028968d85958610e393e067885dc14fTed Kremenek // getCond - Return the expression representing the condition for 2462395a2abf0028968d85958610e393e067885dc14fTed Kremenek // the ?: operator. 24635549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getCond() const { return cast<Expr>(SubExprs[COND]); } 2464ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor void setCond(Expr *E) { SubExprs[COND] = E; } 2465395a2abf0028968d85958610e393e067885dc14fTed Kremenek 2466395a2abf0028968d85958610e393e067885dc14fTed Kremenek // getTrueExpr - Return the subexpression representing the value of the ?: 2467395a2abf0028968d85958610e393e067885dc14fTed Kremenek // expression if the condition evaluates to true. In most cases this value 2468395a2abf0028968d85958610e393e067885dc14fTed Kremenek // will be the same as getLHS() except a GCC extension allows the left 2469395a2abf0028968d85958610e393e067885dc14fTed Kremenek // subexpression to be omitted, and instead of the condition be returned. 2470395a2abf0028968d85958610e393e067885dc14fTed Kremenek // e.g: x ?: y is shorthand for x ? x : y, except that the expression "x" 24711eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // is only evaluated once. 2472395a2abf0028968d85958610e393e067885dc14fTed Kremenek Expr *getTrueExpr() const { 24735549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek return cast<Expr>(SubExprs[LHS] ? SubExprs[LHS] : SubExprs[COND]); 2474395a2abf0028968d85958610e393e067885dc14fTed Kremenek } 24751eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2476395a2abf0028968d85958610e393e067885dc14fTed Kremenek // getTrueExpr - Return the subexpression representing the value of the ?: 2477395a2abf0028968d85958610e393e067885dc14fTed Kremenek // expression if the condition evaluates to false. This is the same as getRHS. 24785549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getFalseExpr() const { return cast<Expr>(SubExprs[RHS]); } 24791eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 24805549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getLHS() const { return cast_or_null<Expr>(SubExprs[LHS]); } 2481ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor void setLHS(Expr *E) { SubExprs[LHS] = E; } 2482ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor 24835549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getRHS() const { return cast<Expr>(SubExprs[RHS]); } 2484ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor void setRHS(Expr *E) { SubExprs[RHS] = E; } 24855f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 248647e1f7c68bf375cac470fdb2b599ddbb395aeb52Douglas Gregor SourceLocation getQuestionLoc() const { return QuestionLoc; } 248747e1f7c68bf375cac470fdb2b599ddbb395aeb52Douglas Gregor void setQuestionLoc(SourceLocation L) { QuestionLoc = L; } 248847e1f7c68bf375cac470fdb2b599ddbb395aeb52Douglas Gregor 248947e1f7c68bf375cac470fdb2b599ddbb395aeb52Douglas Gregor SourceLocation getColonLoc() const { return ColonLoc; } 249047e1f7c68bf375cac470fdb2b599ddbb395aeb52Douglas Gregor void setColonLoc(SourceLocation L) { ColonLoc = L; } 249147e1f7c68bf375cac470fdb2b599ddbb395aeb52Douglas Gregor 24925f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer virtual SourceRange getSourceRange() const { 24935f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return SourceRange(getCond()->getLocStart(), getRHS()->getLocEnd()); 24945f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 24951eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 24961eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == ConditionalOperatorClass; 24975f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 24985f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const ConditionalOperator *) { return true; } 24991eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 25001237c673c07f9d827129ba02720108816abde562Ted Kremenek // Iterators 25011237c673c07f9d827129ba02720108816abde562Ted Kremenek virtual child_iterator child_begin(); 25021237c673c07f9d827129ba02720108816abde562Ted Kremenek virtual child_iterator child_end(); 25035f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 25045f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 25056481a57fefbf1a313ff439028470fe4c27a3b7a3Chris Lattner/// AddrLabelExpr - The GNU address of label extension, representing &&label. 25066481a57fefbf1a313ff439028470fe4c27a3b7a3Chris Lattnerclass AddrLabelExpr : public Expr { 25075f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation AmpAmpLoc, LabelLoc; 25085f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer LabelStmt *Label; 25095f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 25106481a57fefbf1a313ff439028470fe4c27a3b7a3Chris Lattner AddrLabelExpr(SourceLocation AALoc, SourceLocation LLoc, LabelStmt *L, 25116481a57fefbf1a313ff439028470fe4c27a3b7a3Chris Lattner QualType t) 25122333f7727f97018d6742e1e0938133bcfad967abEli Friedman : Expr(AddrLabelExprClass, t, false, false), 25132333f7727f97018d6742e1e0938133bcfad967abEli Friedman AmpAmpLoc(AALoc), LabelLoc(LLoc), Label(L) {} 25141eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 25157d5c2f241c74e5f8d9ec492e8f9f268e5e9ae41fDouglas Gregor /// \brief Build an empty address of a label expression. 25161eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump explicit AddrLabelExpr(EmptyShell Empty) 25177d5c2f241c74e5f8d9ec492e8f9f268e5e9ae41fDouglas Gregor : Expr(AddrLabelExprClass, Empty) { } 25187d5c2f241c74e5f8d9ec492e8f9f268e5e9ae41fDouglas Gregor 25197d5c2f241c74e5f8d9ec492e8f9f268e5e9ae41fDouglas Gregor SourceLocation getAmpAmpLoc() const { return AmpAmpLoc; } 25207d5c2f241c74e5f8d9ec492e8f9f268e5e9ae41fDouglas Gregor void setAmpAmpLoc(SourceLocation L) { AmpAmpLoc = L; } 25217d5c2f241c74e5f8d9ec492e8f9f268e5e9ae41fDouglas Gregor SourceLocation getLabelLoc() const { return LabelLoc; } 25227d5c2f241c74e5f8d9ec492e8f9f268e5e9ae41fDouglas Gregor void setLabelLoc(SourceLocation L) { LabelLoc = L; } 25237d5c2f241c74e5f8d9ec492e8f9f268e5e9ae41fDouglas Gregor 25245f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer virtual SourceRange getSourceRange() const { 25255f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return SourceRange(AmpAmpLoc, LabelLoc); 25265f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 25271eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 25285f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer LabelStmt *getLabel() const { return Label; } 25297d5c2f241c74e5f8d9ec492e8f9f268e5e9ae41fDouglas Gregor void setLabel(LabelStmt *S) { Label = S; } 25307d5c2f241c74e5f8d9ec492e8f9f268e5e9ae41fDouglas Gregor 25315f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const Stmt *T) { 25321eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == AddrLabelExprClass; 25335f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 25346481a57fefbf1a313ff439028470fe4c27a3b7a3Chris Lattner static bool classof(const AddrLabelExpr *) { return true; } 25351eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 25361237c673c07f9d827129ba02720108816abde562Ted Kremenek // Iterators 25371237c673c07f9d827129ba02720108816abde562Ted Kremenek virtual child_iterator child_begin(); 25381237c673c07f9d827129ba02720108816abde562Ted Kremenek virtual child_iterator child_end(); 25395f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 2540ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner 2541ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner/// StmtExpr - This is the GNU Statement Expression extension: ({int X=4; X;}). 2542ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner/// The StmtExpr contains a single CompoundStmt node, which it evaluates and 2543ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner/// takes the value of the last subexpression. 2544ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattnerclass StmtExpr : public Expr { 25455549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Stmt *SubStmt; 2546ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner SourceLocation LParenLoc, RParenLoc; 2547ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattnerpublic: 25482333f7727f97018d6742e1e0938133bcfad967abEli Friedman // FIXME: Does type-dependence need to be computed differently? 2549d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroff StmtExpr(CompoundStmt *substmt, QualType T, 2550d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroff SourceLocation lp, SourceLocation rp) : 25512333f7727f97018d6742e1e0938133bcfad967abEli Friedman Expr(StmtExprClass, T, T->isDependentType(), false), 25522333f7727f97018d6742e1e0938133bcfad967abEli Friedman SubStmt(substmt), LParenLoc(lp), RParenLoc(rp) { } 25531eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 25546a2dd55b0b3ae376d449a4b07bbb6b2d30b26330Douglas Gregor /// \brief Build an empty statement expression. 25556a2dd55b0b3ae376d449a4b07bbb6b2d30b26330Douglas Gregor explicit StmtExpr(EmptyShell Empty) : Expr(StmtExprClass, Empty) { } 25566a2dd55b0b3ae376d449a4b07bbb6b2d30b26330Douglas Gregor 25575549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek CompoundStmt *getSubStmt() { return cast<CompoundStmt>(SubStmt); } 25585549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek const CompoundStmt *getSubStmt() const { return cast<CompoundStmt>(SubStmt); } 25596a2dd55b0b3ae376d449a4b07bbb6b2d30b26330Douglas Gregor void setSubStmt(CompoundStmt *S) { SubStmt = S; } 25606a2dd55b0b3ae376d449a4b07bbb6b2d30b26330Douglas Gregor 2561ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner virtual SourceRange getSourceRange() const { 2562ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner return SourceRange(LParenLoc, RParenLoc); 2563ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner } 25641eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2565026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner SourceLocation getLParenLoc() const { return LParenLoc; } 25666a2dd55b0b3ae376d449a4b07bbb6b2d30b26330Douglas Gregor void setLParenLoc(SourceLocation L) { LParenLoc = L; } 2567026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner SourceLocation getRParenLoc() const { return RParenLoc; } 25686a2dd55b0b3ae376d449a4b07bbb6b2d30b26330Douglas Gregor void setRParenLoc(SourceLocation L) { RParenLoc = L; } 25691eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2570ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner static bool classof(const Stmt *T) { 25711eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == StmtExprClass; 2572ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner } 2573ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner static bool classof(const StmtExpr *) { return true; } 25741eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 25751237c673c07f9d827129ba02720108816abde562Ted Kremenek // Iterators 25761237c673c07f9d827129ba02720108816abde562Ted Kremenek virtual child_iterator child_begin(); 25771237c673c07f9d827129ba02720108816abde562Ted Kremenek virtual child_iterator child_end(); 2578ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner}; 2579ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner 2580dc241b42c7588f99027b035a09b71557a6db219eDouglas Gregor/// TypesCompatibleExpr - GNU builtin-in function __builtin_types_compatible_p. 2581d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroff/// This AST node represents a function that returns 1 if two *types* (not 2582d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroff/// expressions) are compatible. The result of this built-in function can be 2583d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroff/// used in integer constant expressions. 2584d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroffclass TypesCompatibleExpr : public Expr { 25853fcb73dae91be42b071cf0dde9222b7ec362146dAbramo Bagnara TypeSourceInfo *TInfo1; 25863fcb73dae91be42b071cf0dde9222b7ec362146dAbramo Bagnara TypeSourceInfo *TInfo2; 2587363bcff47df2fda3cfcfcd994b7888157df58c43Steve Naroff SourceLocation BuiltinLoc, RParenLoc; 2588d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroffpublic: 25891eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump TypesCompatibleExpr(QualType ReturnType, SourceLocation BLoc, 25903fcb73dae91be42b071cf0dde9222b7ec362146dAbramo Bagnara TypeSourceInfo *tinfo1, TypeSourceInfo *tinfo2, 25913fcb73dae91be42b071cf0dde9222b7ec362146dAbramo Bagnara SourceLocation RP) : 25922333f7727f97018d6742e1e0938133bcfad967abEli Friedman Expr(TypesCompatibleExprClass, ReturnType, false, false), 25933fcb73dae91be42b071cf0dde9222b7ec362146dAbramo Bagnara TInfo1(tinfo1), TInfo2(tinfo2), BuiltinLoc(BLoc), RParenLoc(RP) {} 2594d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroff 259544cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor /// \brief Build an empty __builtin_type_compatible_p expression. 259644cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor explicit TypesCompatibleExpr(EmptyShell Empty) 259744cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor : Expr(TypesCompatibleExprClass, Empty) { } 259844cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor 25993fcb73dae91be42b071cf0dde9222b7ec362146dAbramo Bagnara TypeSourceInfo *getArgTInfo1() const { return TInfo1; } 26003fcb73dae91be42b071cf0dde9222b7ec362146dAbramo Bagnara void setArgTInfo1(TypeSourceInfo *TInfo) { TInfo1 = TInfo; } 26013fcb73dae91be42b071cf0dde9222b7ec362146dAbramo Bagnara TypeSourceInfo *getArgTInfo2() const { return TInfo2; } 26023fcb73dae91be42b071cf0dde9222b7ec362146dAbramo Bagnara void setArgTInfo2(TypeSourceInfo *TInfo) { TInfo2 = TInfo; } 26033fcb73dae91be42b071cf0dde9222b7ec362146dAbramo Bagnara 26043fcb73dae91be42b071cf0dde9222b7ec362146dAbramo Bagnara QualType getArgType1() const { return TInfo1->getType(); } 26053fcb73dae91be42b071cf0dde9222b7ec362146dAbramo Bagnara QualType getArgType2() const { return TInfo2->getType(); } 26061eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 260744cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor SourceLocation getBuiltinLoc() const { return BuiltinLoc; } 260844cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor void setBuiltinLoc(SourceLocation L) { BuiltinLoc = L; } 26091eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 261044cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor SourceLocation getRParenLoc() const { return RParenLoc; } 261144cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor void setRParenLoc(SourceLocation L) { RParenLoc = L; } 26121eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2613d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroff virtual SourceRange getSourceRange() const { 2614363bcff47df2fda3cfcfcd994b7888157df58c43Steve Naroff return SourceRange(BuiltinLoc, RParenLoc); 2615d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroff } 2616d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroff static bool classof(const Stmt *T) { 26171eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == TypesCompatibleExprClass; 2618d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroff } 2619d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroff static bool classof(const TypesCompatibleExpr *) { return true; } 26201eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 26211237c673c07f9d827129ba02720108816abde562Ted Kremenek // Iterators 26221237c673c07f9d827129ba02720108816abde562Ted Kremenek virtual child_iterator child_begin(); 26231237c673c07f9d827129ba02720108816abde562Ted Kremenek virtual child_iterator child_end(); 2624d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroff}; 2625d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroff 2626d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman/// ShuffleVectorExpr - clang-specific builtin-in function 2627d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman/// __builtin_shufflevector. 2628d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman/// This AST node represents a operator that does a constant 2629d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman/// shuffle, similar to LLVM's shufflevector instruction. It takes 2630d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman/// two vectors and a variable number of constant indices, 2631d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman/// and returns the appropriately shuffled vector. 2632d38617c8a50f9729c254ab76cd359af797c6739bEli Friedmanclass ShuffleVectorExpr : public Expr { 2633d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman SourceLocation BuiltinLoc, RParenLoc; 2634d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman 2635d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman // SubExprs - the list of values passed to the __builtin_shufflevector 2636d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman // function. The first two are vectors, and the rest are constant 2637d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman // indices. The number of values in this list is always 2638d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman // 2+the number of indices in the vector type. 26395549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Stmt **SubExprs; 2640d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman unsigned NumExprs; 2641d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman 2642d38617c8a50f9729c254ab76cd359af797c6739bEli Friedmanpublic: 26432333f7727f97018d6742e1e0938133bcfad967abEli Friedman // FIXME: Can a shufflevector be value-dependent? Does type-dependence need 26442333f7727f97018d6742e1e0938133bcfad967abEli Friedman // to be computed differently? 2645a88dc3079bedf70a5cfc39791727e43a10383006Nate Begeman ShuffleVectorExpr(ASTContext &C, Expr **args, unsigned nexpr, 26461eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump QualType Type, SourceLocation BLoc, 26471eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump SourceLocation RP) : 26482333f7727f97018d6742e1e0938133bcfad967abEli Friedman Expr(ShuffleVectorExprClass, Type, Type->isDependentType(), false), 26492333f7727f97018d6742e1e0938133bcfad967abEli Friedman BuiltinLoc(BLoc), RParenLoc(RP), NumExprs(nexpr) { 26501eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2651a88dc3079bedf70a5cfc39791727e43a10383006Nate Begeman SubExprs = new (C) Stmt*[nexpr]; 2652d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman for (unsigned i = 0; i < nexpr; i++) 2653d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman SubExprs[i] = args[i]; 2654d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman } 265594cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor 265694cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor /// \brief Build an empty vector-shuffle expression. 26571eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump explicit ShuffleVectorExpr(EmptyShell Empty) 265894cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor : Expr(ShuffleVectorExprClass, Empty), SubExprs(0) { } 265994cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor 266094cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor SourceLocation getBuiltinLoc() const { return BuiltinLoc; } 266194cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor void setBuiltinLoc(SourceLocation L) { BuiltinLoc = L; } 26621eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 266394cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor SourceLocation getRParenLoc() const { return RParenLoc; } 266494cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor void setRParenLoc(SourceLocation L) { RParenLoc = L; } 266594cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor 2666d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman virtual SourceRange getSourceRange() const { 2667d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman return SourceRange(BuiltinLoc, RParenLoc); 2668d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman } 2669d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman static bool classof(const Stmt *T) { 26701eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == ShuffleVectorExprClass; 2671d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman } 2672d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman static bool classof(const ShuffleVectorExpr *) { return true; } 26731eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2674d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman /// getNumSubExprs - Return the size of the SubExprs array. This includes the 2675d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman /// constant expression, the actual arguments passed in, and the function 2676d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman /// pointers. 2677d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman unsigned getNumSubExprs() const { return NumExprs; } 26781eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2679d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman /// getExpr - Return the Expr at the specified index. 2680d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman Expr *getExpr(unsigned Index) { 2681d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman assert((Index < NumExprs) && "Arg access out of range!"); 26825549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek return cast<Expr>(SubExprs[Index]); 2683d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman } 2684d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman const Expr *getExpr(unsigned Index) const { 2685d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman assert((Index < NumExprs) && "Arg access out of range!"); 26865549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek return cast<Expr>(SubExprs[Index]); 2687d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman } 26881eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2689888376a2bbcfc2f047902249f8455918e2489ae1Nate Begeman void setExprs(ASTContext &C, Expr ** Exprs, unsigned NumExprs); 269094cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor 2691dde8c94873976632e3ada4d8d067e1e244184d51Eli Friedman unsigned getShuffleMaskIdx(ASTContext &Ctx, unsigned N) { 2692dde8c94873976632e3ada4d8d067e1e244184d51Eli Friedman assert((N < NumExprs - 2) && "Shuffle idx out of range!"); 26939a901bb63990574ff0bcc12ff851d7a71cff8ddbEli Friedman return getExpr(N+2)->EvaluateAsInt(Ctx).getZExtValue(); 2694d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman } 26951eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2696d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman // Iterators 2697d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman virtual child_iterator child_begin(); 2698d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman virtual child_iterator child_end(); 2699d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman}; 2700d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman 2701d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff/// ChooseExpr - GNU builtin-in function __builtin_choose_expr. 27021eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// This AST node is similar to the conditional operator (?:) in C, with 2703d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff/// the following exceptions: 27047976932a1c256d447316ffac58e9821417725e34Eli Friedman/// - the test expression must be a integer constant expression. 27057976932a1c256d447316ffac58e9821417725e34Eli Friedman/// - the expression returned acts like the chosen subexpression in every 27067976932a1c256d447316ffac58e9821417725e34Eli Friedman/// visible way: the type is the same as that of the chosen subexpression, 27077976932a1c256d447316ffac58e9821417725e34Eli Friedman/// and all predicates (whether it's an l-value, whether it's an integer 27087976932a1c256d447316ffac58e9821417725e34Eli Friedman/// constant expression, etc.) return the same result as for the chosen 27097976932a1c256d447316ffac58e9821417725e34Eli Friedman/// sub-expression. 2710d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroffclass ChooseExpr : public Expr { 27111237c673c07f9d827129ba02720108816abde562Ted Kremenek enum { COND, LHS, RHS, END_EXPR }; 27125549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Stmt* SubExprs[END_EXPR]; // Left/Middle/Right hand sides. 2713d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff SourceLocation BuiltinLoc, RParenLoc; 2714d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroffpublic: 2715d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff ChooseExpr(SourceLocation BLoc, Expr *cond, Expr *lhs, Expr *rhs, QualType t, 2716ce94049b69f75b44c18584fe79cd238978b6b0d5Douglas Gregor SourceLocation RP, bool TypeDependent, bool ValueDependent) 2717ce94049b69f75b44c18584fe79cd238978b6b0d5Douglas Gregor : Expr(ChooseExprClass, t, TypeDependent, ValueDependent), 27181237c673c07f9d827129ba02720108816abde562Ted Kremenek BuiltinLoc(BLoc), RParenLoc(RP) { 27191237c673c07f9d827129ba02720108816abde562Ted Kremenek SubExprs[COND] = cond; 27201237c673c07f9d827129ba02720108816abde562Ted Kremenek SubExprs[LHS] = lhs; 27211237c673c07f9d827129ba02720108816abde562Ted Kremenek SubExprs[RHS] = rhs; 27221eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump } 27237976932a1c256d447316ffac58e9821417725e34Eli Friedman 272444cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor /// \brief Build an empty __builtin_choose_expr. 272544cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor explicit ChooseExpr(EmptyShell Empty) : Expr(ChooseExprClass, Empty) { } 272644cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor 27277976932a1c256d447316ffac58e9821417725e34Eli Friedman /// isConditionTrue - Return whether the condition is true (i.e. not 27287976932a1c256d447316ffac58e9821417725e34Eli Friedman /// equal to zero). 272927437caadea35f84d550cd29f024fcf3ea240eecChris Lattner bool isConditionTrue(ASTContext &C) const; 27307976932a1c256d447316ffac58e9821417725e34Eli Friedman 27317976932a1c256d447316ffac58e9821417725e34Eli Friedman /// getChosenSubExpr - Return the subexpression chosen according to the 27327976932a1c256d447316ffac58e9821417725e34Eli Friedman /// condition. 27337976932a1c256d447316ffac58e9821417725e34Eli Friedman Expr *getChosenSubExpr(ASTContext &C) const { 27347976932a1c256d447316ffac58e9821417725e34Eli Friedman return isConditionTrue(C) ? getLHS() : getRHS(); 27357976932a1c256d447316ffac58e9821417725e34Eli Friedman } 27367976932a1c256d447316ffac58e9821417725e34Eli Friedman 27375549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getCond() const { return cast<Expr>(SubExprs[COND]); } 273844cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor void setCond(Expr *E) { SubExprs[COND] = E; } 27395549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getLHS() const { return cast<Expr>(SubExprs[LHS]); } 274044cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor void setLHS(Expr *E) { SubExprs[LHS] = E; } 27415549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getRHS() const { return cast<Expr>(SubExprs[RHS]); } 274244cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor void setRHS(Expr *E) { SubExprs[RHS] = E; } 274344cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor 274444cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor SourceLocation getBuiltinLoc() const { return BuiltinLoc; } 274544cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor void setBuiltinLoc(SourceLocation L) { BuiltinLoc = L; } 27461eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 274744cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor SourceLocation getRParenLoc() const { return RParenLoc; } 274844cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor void setRParenLoc(SourceLocation L) { RParenLoc = L; } 27491237c673c07f9d827129ba02720108816abde562Ted Kremenek 2750d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff virtual SourceRange getSourceRange() const { 2751d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff return SourceRange(BuiltinLoc, RParenLoc); 2752d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff } 2753d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff static bool classof(const Stmt *T) { 27541eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == ChooseExprClass; 2755d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff } 2756d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff static bool classof(const ChooseExpr *) { return true; } 27571eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 27581237c673c07f9d827129ba02720108816abde562Ted Kremenek // Iterators 27591237c673c07f9d827129ba02720108816abde562Ted Kremenek virtual child_iterator child_begin(); 27601237c673c07f9d827129ba02720108816abde562Ted Kremenek virtual child_iterator child_end(); 2761d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff}; 2762d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff 27632d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor/// GNUNullExpr - Implements the GNU __null extension, which is a name 27642d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor/// for a null pointer constant that has integral type (e.g., int or 27652d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor/// long) and is the same size and alignment as a pointer. The __null 27662d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor/// extension is typically only used by system headers, which define 27672d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor/// NULL as __null in C++ rather than using 0 (which is an integer 27682d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor/// that may not match the size of a pointer). 27692d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregorclass GNUNullExpr : public Expr { 27702d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor /// TokenLoc - The location of the __null keyword. 27712d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor SourceLocation TokenLoc; 27722d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor 27732d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregorpublic: 27741eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump GNUNullExpr(QualType Ty, SourceLocation Loc) 27752333f7727f97018d6742e1e0938133bcfad967abEli Friedman : Expr(GNUNullExprClass, Ty, false, false), TokenLoc(Loc) { } 27762d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor 277744cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor /// \brief Build an empty GNU __null expression. 277844cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor explicit GNUNullExpr(EmptyShell Empty) : Expr(GNUNullExprClass, Empty) { } 277944cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor 27802d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor /// getTokenLocation - The location of the __null token. 27812d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor SourceLocation getTokenLocation() const { return TokenLoc; } 278244cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor void setTokenLocation(SourceLocation L) { TokenLoc = L; } 27832d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor 27842d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor virtual SourceRange getSourceRange() const { 27852d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor return SourceRange(TokenLoc); 27862d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor } 27872d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor static bool classof(const Stmt *T) { 27881eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == GNUNullExprClass; 27892d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor } 27902d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor static bool classof(const GNUNullExpr *) { return true; } 27911eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 27922d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor // Iterators 27932d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor virtual child_iterator child_begin(); 27942d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor virtual child_iterator child_end(); 27952d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor}; 27962d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor 279774626d6ef2e194fcc911e071556660ff331eb4a8Zhongxing Xu/// VAArgExpr, used for the builtin function __builtin_va_arg. 27987c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlssonclass VAArgExpr : public Expr { 27995549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Stmt *Val; 28002cad900202561cdda18ea6cc51ddbf3e20e3c23aAbramo Bagnara TypeSourceInfo *TInfo; 28017c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson SourceLocation BuiltinLoc, RParenLoc; 28027c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlssonpublic: 28032cad900202561cdda18ea6cc51ddbf3e20e3c23aAbramo Bagnara VAArgExpr(SourceLocation BLoc, Expr* e, TypeSourceInfo *TInfo, 28042cad900202561cdda18ea6cc51ddbf3e20e3c23aAbramo Bagnara SourceLocation RPLoc, QualType t) 28052333f7727f97018d6742e1e0938133bcfad967abEli Friedman : Expr(VAArgExprClass, t, t->isDependentType(), false), 28062cad900202561cdda18ea6cc51ddbf3e20e3c23aAbramo Bagnara Val(e), TInfo(TInfo), 28077c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson BuiltinLoc(BLoc), 28087c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson RParenLoc(RPLoc) { } 28091eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 281074626d6ef2e194fcc911e071556660ff331eb4a8Zhongxing Xu /// \brief Create an empty __builtin_va_arg expression. 2811d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor explicit VAArgExpr(EmptyShell Empty) : Expr(VAArgExprClass, Empty) { } 2812d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor 28135549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek const Expr *getSubExpr() const { return cast<Expr>(Val); } 28145549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getSubExpr() { return cast<Expr>(Val); } 2815d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor void setSubExpr(Expr *E) { Val = E; } 2816d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor 28172cad900202561cdda18ea6cc51ddbf3e20e3c23aAbramo Bagnara TypeSourceInfo *getWrittenTypeInfo() const { return TInfo; } 28182cad900202561cdda18ea6cc51ddbf3e20e3c23aAbramo Bagnara void setWrittenTypeInfo(TypeSourceInfo *TI) { TInfo = TI; } 28192cad900202561cdda18ea6cc51ddbf3e20e3c23aAbramo Bagnara 2820d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor SourceLocation getBuiltinLoc() const { return BuiltinLoc; } 2821d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor void setBuiltinLoc(SourceLocation L) { BuiltinLoc = L; } 28221eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2823d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor SourceLocation getRParenLoc() const { return RParenLoc; } 2824d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor void setRParenLoc(SourceLocation L) { RParenLoc = L; } 2825d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor 28267c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson virtual SourceRange getSourceRange() const { 28277c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson return SourceRange(BuiltinLoc, RParenLoc); 28281eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump } 28297c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson static bool classof(const Stmt *T) { 28307c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson return T->getStmtClass() == VAArgExprClass; 28317c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson } 28327c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson static bool classof(const VAArgExpr *) { return true; } 28331eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 28347c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson // Iterators 28357c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson virtual child_iterator child_begin(); 28361eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump virtual child_iterator child_end(); 28377c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson}; 28381eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 28394c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// @brief Describes an C or C++ initializer list. 28404c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// 28414c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// InitListExpr describes an initializer list, which can be used to 28424c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// initialize objects of different types, including 28434c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// struct/class/union types, arrays, and vectors. For example: 28444c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// 28454c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// @code 28464c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// struct foo x = { 1, { 2, 3 } }; 28474c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// @endcode 2848196ef51bc4d008ec1c69851fb3b0f8d036065931Chris Lattner/// 28494c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// Prior to semantic analysis, an initializer list will represent the 28504c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// initializer list as written by the user, but will have the 28514c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// placeholder type "void". This initializer list is called the 28524c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// syntactic form of the initializer, and may contain C99 designated 28534c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// initializers (represented as DesignatedInitExprs), initializations 28544c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// of subobject members without explicit braces, and so on. Clients 28554c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// interested in the original syntax of the initializer list should 28564c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// use the syntactic form of the initializer list. 2857196ef51bc4d008ec1c69851fb3b0f8d036065931Chris Lattner/// 28584c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// After semantic analysis, the initializer list will represent the 28594c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// semantic form of the initializer, where the initializations of all 28604c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// subobjects are made explicit with nested InitListExpr nodes and 28614c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// C99 designators have been eliminated by placing the designated 28624c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// initializations into the subobject they initialize. Additionally, 28634c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// any "holes" in the initialization, where no initializer has been 28644c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// specified for a particular subobject, will be replaced with 28653498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor/// implicitly-generated ImplicitValueInitExpr expressions that 28664c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// value-initialize the subobjects. Note, however, that the 28674c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// initializer lists may still have fewer initializers than there are 28684c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// elements to initialize within the object. 2869196ef51bc4d008ec1c69851fb3b0f8d036065931Chris Lattner/// 28704c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// Given the semantic form of the initializer list, one can retrieve 28714c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// the original syntactic form of that initializer list (if it 28724c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// exists) using getSyntacticForm(). Since many initializer lists 28734c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// have the same syntactic and semantic forms, getSyntacticForm() may 28744c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// return NULL, indicating that the current initializer list also 28754c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// serves as its syntactic form. 287666b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlssonclass InitListExpr : public Expr { 2877ba7bc5584b8d46f4e8deb3a9d363256908fa86eaTed Kremenek // FIXME: Eliminate this vector in favor of ASTContext allocation 2878709210feee317b8d6690dd1d15c2b74cfe55e261Ted Kremenek typedef ASTVector<Stmt *> InitExprsTy; 2879709210feee317b8d6690dd1d15c2b74cfe55e261Ted Kremenek InitExprsTy InitExprs; 288066b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson SourceLocation LBraceLoc, RBraceLoc; 28811eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 28824c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// Contains the initializer list that describes the syntactic form 28834c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// written in the source code. 28844c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor InitListExpr *SyntacticForm; 28854c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor 28860bb76897bedb8b747efc6523efb432fc24966118Douglas Gregor /// If this initializer list initializes a union, specifies which 28870bb76897bedb8b747efc6523efb432fc24966118Douglas Gregor /// field within the union will be initialized. 28880bb76897bedb8b747efc6523efb432fc24966118Douglas Gregor FieldDecl *UnionFieldInit; 28890bb76897bedb8b747efc6523efb432fc24966118Douglas Gregor 2890a9c878086036de36482cc21e35a33cabe9699b0aDouglas Gregor /// Whether this initializer list originally had a GNU array-range 2891a9c878086036de36482cc21e35a33cabe9699b0aDouglas Gregor /// designator in it. This is a temporary marker used by CodeGen. 2892a9c878086036de36482cc21e35a33cabe9699b0aDouglas Gregor bool HadArrayRangeDesignator; 2893a9c878086036de36482cc21e35a33cabe9699b0aDouglas Gregor 289466b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlssonpublic: 2895709210feee317b8d6690dd1d15c2b74cfe55e261Ted Kremenek InitListExpr(ASTContext &C, SourceLocation lbraceloc, 2896709210feee317b8d6690dd1d15c2b74cfe55e261Ted Kremenek Expr **initexprs, unsigned numinits, 2897ba7bc5584b8d46f4e8deb3a9d363256908fa86eaTed Kremenek SourceLocation rbraceloc); 2898d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor 2899d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor /// \brief Build an empty initializer list. 2900709210feee317b8d6690dd1d15c2b74cfe55e261Ted Kremenek explicit InitListExpr(ASTContext &C, EmptyShell Empty) 2901709210feee317b8d6690dd1d15c2b74cfe55e261Ted Kremenek : Expr(InitListExprClass, Empty), InitExprs(C) { } 29021eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2903ba7bc5584b8d46f4e8deb3a9d363256908fa86eaTed Kremenek unsigned getNumInits() const { return InitExprs.size(); } 29041eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 29051eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump const Expr* getInit(unsigned Init) const { 2906c5ae899b4bbf65488445316c63168079177db0edSteve Naroff assert(Init < getNumInits() && "Initializer access out of range!"); 29074c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor return cast_or_null<Expr>(InitExprs[Init]); 290866b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson } 29091eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 29101eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump Expr* getInit(unsigned Init) { 2911c5ae899b4bbf65488445316c63168079177db0edSteve Naroff assert(Init < getNumInits() && "Initializer access out of range!"); 29124c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor return cast_or_null<Expr>(InitExprs[Init]); 291366b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson } 29141eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 29151eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump void setInit(unsigned Init, Expr *expr) { 2916c5ae899b4bbf65488445316c63168079177db0edSteve Naroff assert(Init < getNumInits() && "Initializer access out of range!"); 29179e8925e72f53a9e2c4633b6b48e965ed01702fe4Steve Naroff InitExprs[Init] = expr; 29189e8925e72f53a9e2c4633b6b48e965ed01702fe4Steve Naroff } 2919c5ae899b4bbf65488445316c63168079177db0edSteve Naroff 2920fa2192042f223b5122a9e17719930f77634fd31fDouglas Gregor /// \brief Reserve space for some number of initializers. 2921709210feee317b8d6690dd1d15c2b74cfe55e261Ted Kremenek void reserveInits(ASTContext &C, unsigned NumInits); 29221eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 29234c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// @brief Specify the number of initializers 29244c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// 29254c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// If there are more than @p NumInits initializers, the remaining 29264c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// initializers will be destroyed. If there are fewer than @p 29274c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// NumInits initializers, NULL expressions will be added for the 29284c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// unknown initializers. 29294c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor void resizeInits(ASTContext &Context, unsigned NumInits); 29304c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor 29314c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// @brief Updates the initializer at index @p Init with the new 29324c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// expression @p expr, and returns the old expression at that 29334c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// location. 29344c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// 29354c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// When @p Init is out of range for this initializer list, the 29364c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// initializer list will be extended with NULL expressions to 29374c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// accomodate the new entry. 2938709210feee317b8d6690dd1d15c2b74cfe55e261Ted Kremenek Expr *updateInit(ASTContext &C, unsigned Init, Expr *expr); 2939c5ae899b4bbf65488445316c63168079177db0edSteve Naroff 29400bb76897bedb8b747efc6523efb432fc24966118Douglas Gregor /// \brief If this initializes a union, specifies which field in the 29410bb76897bedb8b747efc6523efb432fc24966118Douglas Gregor /// union to initialize. 29420bb76897bedb8b747efc6523efb432fc24966118Douglas Gregor /// 29430bb76897bedb8b747efc6523efb432fc24966118Douglas Gregor /// Typically, this field is the first named field within the 29440bb76897bedb8b747efc6523efb432fc24966118Douglas Gregor /// union. However, a designated initializer can specify the 29450bb76897bedb8b747efc6523efb432fc24966118Douglas Gregor /// initialization of a different field within the union. 29460bb76897bedb8b747efc6523efb432fc24966118Douglas Gregor FieldDecl *getInitializedFieldInUnion() { return UnionFieldInit; } 29470bb76897bedb8b747efc6523efb432fc24966118Douglas Gregor void setInitializedFieldInUnion(FieldDecl *FD) { UnionFieldInit = FD; } 29480bb76897bedb8b747efc6523efb432fc24966118Douglas Gregor 2949c5ae899b4bbf65488445316c63168079177db0edSteve Naroff // Explicit InitListExpr's originate from source code (and have valid source 2950c5ae899b4bbf65488445316c63168079177db0edSteve Naroff // locations). Implicit InitListExpr's are created by the semantic analyzer. 2951b3eef68111ffc220e449be96da1747998c057790Douglas Gregor bool isExplicit() { 2952b3eef68111ffc220e449be96da1747998c057790Douglas Gregor return LBraceLoc.isValid() && RBraceLoc.isValid(); 2953b3eef68111ffc220e449be96da1747998c057790Douglas Gregor } 29541eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2955d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor SourceLocation getLBraceLoc() const { return LBraceLoc; } 2956d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor void setLBraceLoc(SourceLocation Loc) { LBraceLoc = Loc; } 2957d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor SourceLocation getRBraceLoc() const { return RBraceLoc; } 295887fd703e097c27d63479cb83b687d4000a22bbb1Douglas Gregor void setRBraceLoc(SourceLocation Loc) { RBraceLoc = Loc; } 295987fd703e097c27d63479cb83b687d4000a22bbb1Douglas Gregor 29604c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// @brief Retrieve the initializer list that describes the 29614c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// syntactic form of the initializer. 29624c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// 29631eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /// 29644c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor InitListExpr *getSyntacticForm() const { return SyntacticForm; } 29654c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor void setSyntacticForm(InitListExpr *Init) { SyntacticForm = Init; } 29664c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor 2967a9c878086036de36482cc21e35a33cabe9699b0aDouglas Gregor bool hadArrayRangeDesignator() const { return HadArrayRangeDesignator; } 29681eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump void sawArrayRangeDesignator(bool ARD = true) { 2969d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor HadArrayRangeDesignator = ARD; 2970a9c878086036de36482cc21e35a33cabe9699b0aDouglas Gregor } 2971a9c878086036de36482cc21e35a33cabe9699b0aDouglas Gregor 297266b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson virtual SourceRange getSourceRange() const { 297366b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson return SourceRange(LBraceLoc, RBraceLoc); 29741eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump } 297566b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson static bool classof(const Stmt *T) { 29761eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == InitListExprClass; 297766b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson } 297866b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson static bool classof(const InitListExpr *) { return true; } 29791eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 298066b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson // Iterators 298166b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson virtual child_iterator child_begin(); 298266b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson virtual child_iterator child_end(); 29831eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2984709210feee317b8d6690dd1d15c2b74cfe55e261Ted Kremenek typedef InitExprsTy::iterator iterator; 29858111a6150cb68a238d55a31f9f4f90869a43f988Zhongxing Xu typedef InitExprsTy::const_iterator const_iterator; 2986709210feee317b8d6690dd1d15c2b74cfe55e261Ted Kremenek typedef InitExprsTy::reverse_iterator reverse_iterator; 29878111a6150cb68a238d55a31f9f4f90869a43f988Zhongxing Xu typedef InitExprsTy::const_reverse_iterator const_reverse_iterator; 29881eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2989ba7bc5584b8d46f4e8deb3a9d363256908fa86eaTed Kremenek iterator begin() { return InitExprs.begin(); } 29908111a6150cb68a238d55a31f9f4f90869a43f988Zhongxing Xu const_iterator begin() const { return InitExprs.begin(); } 2991ba7bc5584b8d46f4e8deb3a9d363256908fa86eaTed Kremenek iterator end() { return InitExprs.end(); } 29928111a6150cb68a238d55a31f9f4f90869a43f988Zhongxing Xu const_iterator end() const { return InitExprs.end(); } 2993ba7bc5584b8d46f4e8deb3a9d363256908fa86eaTed Kremenek reverse_iterator rbegin() { return InitExprs.rbegin(); } 29948111a6150cb68a238d55a31f9f4f90869a43f988Zhongxing Xu const_reverse_iterator rbegin() const { return InitExprs.rbegin(); } 2995ba7bc5584b8d46f4e8deb3a9d363256908fa86eaTed Kremenek reverse_iterator rend() { return InitExprs.rend(); } 29968111a6150cb68a238d55a31f9f4f90869a43f988Zhongxing Xu const_reverse_iterator rend() const { return InitExprs.rend(); } 299766b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson}; 299866b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson 299905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// @brief Represents a C99 designated initializer expression. 300005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// 300105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// A designated initializer expression (C99 6.7.8) contains one or 300205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// more designators (which can be field designators, array 300305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// designators, or GNU array-range designators) followed by an 300405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// expression that initializes the field or element(s) that the 300505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// designators refer to. For example, given: 30061eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// 300705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// @code 300805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// struct point { 300905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// double x; 301005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// double y; 301105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// }; 301205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// struct point ptarray[10] = { [2].y = 1.0, [2].x = 2.0, [0].x = 1.0 }; 301305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// @endcode 301405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// 301505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// The InitListExpr contains three DesignatedInitExprs, the first of 301605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// which covers @c [2].y=1.0. This DesignatedInitExpr will have two 301705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// designators, one array designator for @c [2] followed by one field 301805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// designator for @c .y. The initalization expression will be 1.0. 301905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregorclass DesignatedInitExpr : public Expr { 3020ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregorpublic: 3021ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor /// \brief Forward declaration of the Designator class. 3022ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor class Designator; 3023ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor 3024ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregorprivate: 302505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// The location of the '=' or ':' prior to the actual initializer 302605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// expression. 302705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor SourceLocation EqualOrColonLoc; 302805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 3029eeae8f072748affce25ab4064982626361293390Douglas Gregor /// Whether this designated initializer used the GNU deprecated 303005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// syntax rather than the C99 '=' syntax. 3031eeae8f072748affce25ab4064982626361293390Douglas Gregor bool GNUSyntax : 1; 303205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 303305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// The number of designators in this initializer expression. 303405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor unsigned NumDesignators : 15; 303505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 3036ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor /// \brief The designators in this designated initialization 3037ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor /// expression. 3038ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor Designator *Designators; 3039ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor 304005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// The number of subexpressions of this initializer expression, 304105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// which contains both the initializer and any additional 304205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// expressions used by array and array-range designators. 304305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor unsigned NumSubExprs : 16; 304405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 3045ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor 3046319d57f21600dd2c4d52ccc27bd12ce260b174e7Douglas Gregor DesignatedInitExpr(ASTContext &C, QualType Ty, unsigned NumDesignators, 3047ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor const Designator *Designators, 3048eeae8f072748affce25ab4064982626361293390Douglas Gregor SourceLocation EqualOrColonLoc, bool GNUSyntax, 30499ea62768fca25d829d80199cf4f8cf0f4dd39251Douglas Gregor Expr **IndexExprs, unsigned NumIndexExprs, 30509ea62768fca25d829d80199cf4f8cf0f4dd39251Douglas Gregor Expr *Init); 305105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 3052d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor explicit DesignatedInitExpr(unsigned NumSubExprs) 3053d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor : Expr(DesignatedInitExprClass, EmptyShell()), 3054d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor NumDesignators(0), Designators(0), NumSubExprs(NumSubExprs) { } 3055d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor 305605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregorpublic: 305705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// A field designator, e.g., ".x". 305805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor struct FieldDesignator { 305905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// Refers to the field that is being initialized. The low bit 306005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// of this field determines whether this is actually a pointer 306105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// to an IdentifierInfo (if 1) or a FieldDecl (if 0). When 306205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// initially constructed, a field designator will store an 306305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// IdentifierInfo*. After semantic analysis has resolved that 306405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// name, the field designator will instead store a FieldDecl*. 306505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor uintptr_t NameOrField; 30661eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 306705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// The location of the '.' in the designated initializer. 306805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor unsigned DotLoc; 30691eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 307005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// The location of the field name in the designated initializer. 307105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor unsigned FieldLoc; 307205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor }; 307305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 307405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// An array or GNU array-range designator, e.g., "[9]" or "[10..15]". 307505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor struct ArrayOrRangeDesignator { 307605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// Location of the first index expression within the designated 307705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// initializer expression's list of subexpressions. 307805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor unsigned Index; 307905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// The location of the '[' starting the array range designator. 308005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor unsigned LBracketLoc; 308105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// The location of the ellipsis separating the start and end 308205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// indices. Only valid for GNU array-range designators. 308305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor unsigned EllipsisLoc; 308405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// The location of the ']' terminating the array range designator. 30851eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump unsigned RBracketLoc; 308605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor }; 308705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 308805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// @brief Represents a single C99 designator. 308905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// 309005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// @todo This class is infuriatingly similar to clang::Designator, 309105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// but minor differences (storing indices vs. storing pointers) 309205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// keep us from reusing it. Try harder, later, to rectify these 309305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// differences. 309405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor class Designator { 309505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// @brief The kind of designator this describes. 309605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor enum { 309705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor FieldDesignator, 309805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor ArrayDesignator, 309905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor ArrayRangeDesignator 310005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } Kind; 310105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 310205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor union { 310305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// A field designator, e.g., ".x". 310405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor struct FieldDesignator Field; 310505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// An array or GNU array-range designator, e.g., "[9]" or "[10..15]". 310605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor struct ArrayOrRangeDesignator ArrayOrRange; 310705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor }; 310805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor friend class DesignatedInitExpr; 310905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 311005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor public: 3111ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor Designator() {} 3112ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor 311305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// @brief Initializes a field designator. 31141eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump Designator(const IdentifierInfo *FieldName, SourceLocation DotLoc, 31151eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump SourceLocation FieldLoc) 311605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor : Kind(FieldDesignator) { 311705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor Field.NameOrField = reinterpret_cast<uintptr_t>(FieldName) | 0x01; 311805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor Field.DotLoc = DotLoc.getRawEncoding(); 311905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor Field.FieldLoc = FieldLoc.getRawEncoding(); 312005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } 312105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 312205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// @brief Initializes an array designator. 31231eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump Designator(unsigned Index, SourceLocation LBracketLoc, 312405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor SourceLocation RBracketLoc) 312505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor : Kind(ArrayDesignator) { 312605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor ArrayOrRange.Index = Index; 312705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor ArrayOrRange.LBracketLoc = LBracketLoc.getRawEncoding(); 312805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor ArrayOrRange.EllipsisLoc = SourceLocation().getRawEncoding(); 312905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor ArrayOrRange.RBracketLoc = RBracketLoc.getRawEncoding(); 313005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } 313105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 313205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// @brief Initializes a GNU array-range designator. 31331eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump Designator(unsigned Index, SourceLocation LBracketLoc, 313405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor SourceLocation EllipsisLoc, SourceLocation RBracketLoc) 313505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor : Kind(ArrayRangeDesignator) { 313605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor ArrayOrRange.Index = Index; 313705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor ArrayOrRange.LBracketLoc = LBracketLoc.getRawEncoding(); 313805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor ArrayOrRange.EllipsisLoc = EllipsisLoc.getRawEncoding(); 313905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor ArrayOrRange.RBracketLoc = RBracketLoc.getRawEncoding(); 314005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } 314105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 314205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor bool isFieldDesignator() const { return Kind == FieldDesignator; } 314305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor bool isArrayDesignator() const { return Kind == ArrayDesignator; } 314405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor bool isArrayRangeDesignator() const { return Kind == ArrayRangeDesignator; } 314505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 314605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor IdentifierInfo * getFieldName(); 314705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 314805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor FieldDecl *getField() { 314905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor assert(Kind == FieldDesignator && "Only valid on a field designator"); 315005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor if (Field.NameOrField & 0x01) 315105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor return 0; 315205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor else 315305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor return reinterpret_cast<FieldDecl *>(Field.NameOrField); 315405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } 315505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 315605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor void setField(FieldDecl *FD) { 315705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor assert(Kind == FieldDesignator && "Only valid on a field designator"); 315805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor Field.NameOrField = reinterpret_cast<uintptr_t>(FD); 315905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } 316005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 316187f55cf59e82f246d8605733e9300d0c5f6830a6Douglas Gregor SourceLocation getDotLoc() const { 316287f55cf59e82f246d8605733e9300d0c5f6830a6Douglas Gregor assert(Kind == FieldDesignator && "Only valid on a field designator"); 316387f55cf59e82f246d8605733e9300d0c5f6830a6Douglas Gregor return SourceLocation::getFromRawEncoding(Field.DotLoc); 316487f55cf59e82f246d8605733e9300d0c5f6830a6Douglas Gregor } 316587f55cf59e82f246d8605733e9300d0c5f6830a6Douglas Gregor 316605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor SourceLocation getFieldLoc() const { 316705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor assert(Kind == FieldDesignator && "Only valid on a field designator"); 316805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor return SourceLocation::getFromRawEncoding(Field.FieldLoc); 316905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } 317005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 317105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor SourceLocation getLBracketLoc() const { 317205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor assert((Kind == ArrayDesignator || Kind == ArrayRangeDesignator) && 317305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor "Only valid on an array or array-range designator"); 317405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor return SourceLocation::getFromRawEncoding(ArrayOrRange.LBracketLoc); 317505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } 317605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 317705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor SourceLocation getRBracketLoc() const { 317805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor assert((Kind == ArrayDesignator || Kind == ArrayRangeDesignator) && 317905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor "Only valid on an array or array-range designator"); 318005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor return SourceLocation::getFromRawEncoding(ArrayOrRange.RBracketLoc); 318105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } 318205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 318305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor SourceLocation getEllipsisLoc() const { 318405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor assert(Kind == ArrayRangeDesignator && 318505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor "Only valid on an array-range designator"); 318605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor return SourceLocation::getFromRawEncoding(ArrayOrRange.EllipsisLoc); 318705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } 31884c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor 3189d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor unsigned getFirstExprIndex() const { 3190d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor assert((Kind == ArrayDesignator || Kind == ArrayRangeDesignator) && 3191d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor "Only valid on an array or array-range designator"); 3192d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor return ArrayOrRange.Index; 3193d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor } 3194d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor 31954c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor SourceLocation getStartLocation() const { 31964c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor if (Kind == FieldDesignator) 31974c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor return getDotLoc().isInvalid()? getFieldLoc() : getDotLoc(); 31984c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor else 31994c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor return getLBracketLoc(); 32004c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor } 320105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor }; 320205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 32031eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static DesignatedInitExpr *Create(ASTContext &C, Designator *Designators, 320405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor unsigned NumDesignators, 320505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor Expr **IndexExprs, unsigned NumIndexExprs, 320605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor SourceLocation EqualOrColonLoc, 3207eeae8f072748affce25ab4064982626361293390Douglas Gregor bool GNUSyntax, Expr *Init); 320805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 3209d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor static DesignatedInitExpr *CreateEmpty(ASTContext &C, unsigned NumIndexExprs); 3210d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor 321105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// @brief Returns the number of designators in this initializer. 321205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor unsigned size() const { return NumDesignators; } 321305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 321405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor // Iterator access to the designators. 321505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor typedef Designator* designators_iterator; 3216ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor designators_iterator designators_begin() { return Designators; } 32171eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump designators_iterator designators_end() { 32181eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return Designators + NumDesignators; 3219ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor } 322005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 3221711997184366d584c9c437102cae1e9d9927b986Douglas Gregor Designator *getDesignator(unsigned Idx) { return &designators_begin()[Idx]; } 3222711997184366d584c9c437102cae1e9d9927b986Douglas Gregor 3223c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt void setDesignators(ASTContext &C, const Designator *Desigs, 3224319d57f21600dd2c4d52ccc27bd12ce260b174e7Douglas Gregor unsigned NumDesigs); 3225d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor 322605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor Expr *getArrayIndex(const Designator& D); 322705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor Expr *getArrayRangeStart(const Designator& D); 322805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor Expr *getArrayRangeEnd(const Designator& D); 322905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 323005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// @brief Retrieve the location of the '=' that precedes the 323105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// initializer value itself, if present. 323205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor SourceLocation getEqualOrColonLoc() const { return EqualOrColonLoc; } 3233d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor void setEqualOrColonLoc(SourceLocation L) { EqualOrColonLoc = L; } 323405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 323505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// @brief Determines whether this designated initializer used the 3236eeae8f072748affce25ab4064982626361293390Douglas Gregor /// deprecated GNU syntax for designated initializers. 3237eeae8f072748affce25ab4064982626361293390Douglas Gregor bool usesGNUSyntax() const { return GNUSyntax; } 3238d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor void setGNUSyntax(bool GNU) { GNUSyntax = GNU; } 323905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 324005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// @brief Retrieve the initializer value. 32411eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump Expr *getInit() const { 324205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor return cast<Expr>(*const_cast<DesignatedInitExpr*>(this)->child_begin()); 324305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } 324405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 324505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor void setInit(Expr *init) { 324605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor *child_begin() = init; 324705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } 324805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 3249d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor /// \brief Retrieve the total number of subexpressions in this 3250d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor /// designated initializer expression, including the actual 3251d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor /// initialized value and any expressions that occur within array 3252d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor /// and array-range designators. 3253d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor unsigned getNumSubExprs() const { return NumSubExprs; } 3254d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor 3255d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor Expr *getSubExpr(unsigned Idx) { 3256d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor assert(Idx < NumSubExprs && "Subscript out of range"); 3257d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor char* Ptr = static_cast<char*>(static_cast<void *>(this)); 3258d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor Ptr += sizeof(DesignatedInitExpr); 3259d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor return reinterpret_cast<Expr**>(reinterpret_cast<void**>(Ptr))[Idx]; 3260d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor } 3261d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor 3262d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor void setSubExpr(unsigned Idx, Expr *E) { 3263d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor assert(Idx < NumSubExprs && "Subscript out of range"); 3264d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor char* Ptr = static_cast<char*>(static_cast<void *>(this)); 3265d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor Ptr += sizeof(DesignatedInitExpr); 3266d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor reinterpret_cast<Expr**>(reinterpret_cast<void**>(Ptr))[Idx] = E; 3267d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor } 3268d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor 3269ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor /// \brief Replaces the designator at index @p Idx with the series 3270ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor /// of designators in [First, Last). 3271319d57f21600dd2c4d52ccc27bd12ce260b174e7Douglas Gregor void ExpandDesignator(ASTContext &C, unsigned Idx, const Designator *First, 3272ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor const Designator *Last); 3273ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor 327405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor virtual SourceRange getSourceRange() const; 327505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 327605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor static bool classof(const Stmt *T) { 32771eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == DesignatedInitExprClass; 327805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } 327905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor static bool classof(const DesignatedInitExpr *) { return true; } 328005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 328105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor // Iterators 328205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor virtual child_iterator child_begin(); 32831eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump virtual child_iterator child_end(); 32843498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor}; 32853498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor 32863498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor/// \brief Represents an implicitly-generated value initialization of 32873498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor/// an object of a given type. 32883498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor/// 32891a51b4a11b7db25cac2134249711ecaaf9d1c0a8Douglas Gregor/// Implicit value initializations occur within semantic initializer 32901a51b4a11b7db25cac2134249711ecaaf9d1c0a8Douglas Gregor/// list expressions (InitListExpr) as placeholders for subobject 32913498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor/// initializations not explicitly specified by the user. 32921a51b4a11b7db25cac2134249711ecaaf9d1c0a8Douglas Gregor/// 32931a51b4a11b7db25cac2134249711ecaaf9d1c0a8Douglas Gregor/// \see InitListExpr 32941eb4433ac451dc16f4133a88af2d002ac26c58efMike Stumpclass ImplicitValueInitExpr : public Expr { 32953498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregorpublic: 32961eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump explicit ImplicitValueInitExpr(QualType ty) 32972333f7727f97018d6742e1e0938133bcfad967abEli Friedman : Expr(ImplicitValueInitExprClass, ty, false, false) { } 32983498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor 3299d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor /// \brief Construct an empty implicit value initialization. 3300d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor explicit ImplicitValueInitExpr(EmptyShell Empty) 3301d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor : Expr(ImplicitValueInitExprClass, Empty) { } 3302d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor 33031eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 33043498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor return T->getStmtClass() == ImplicitValueInitExprClass; 33053498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor } 33063498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor static bool classof(const ImplicitValueInitExpr *) { return true; } 33073498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor 33083498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor virtual SourceRange getSourceRange() const { 33093498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor return SourceRange(); 33103498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor } 33113498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor 33123498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor // Iterators 33133498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor virtual child_iterator child_begin(); 33141eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump virtual child_iterator child_end(); 331505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor}; 331605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 33172ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman 33182ef13e5abef0570a9f567b4671367275c05d4d34Nate Begemanclass ParenListExpr : public Expr { 33192ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman Stmt **Exprs; 33202ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman unsigned NumExprs; 33212ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman SourceLocation LParenLoc, RParenLoc; 33222ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman 33232ef13e5abef0570a9f567b4671367275c05d4d34Nate Begemanpublic: 33241eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump ParenListExpr(ASTContext& C, SourceLocation lparenloc, Expr **exprs, 33252ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman unsigned numexprs, SourceLocation rparenloc); 33262ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman 33272ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman /// \brief Build an empty paren list. 332837bdfe284ad365f753741d1d89c078c148b3f4afArgyrios Kyrtzidis explicit ParenListExpr(EmptyShell Empty) : Expr(ParenListExprClass, Empty) { } 33291eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 33302ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman unsigned getNumExprs() const { return NumExprs; } 33311eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 33321eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump const Expr* getExpr(unsigned Init) const { 33332ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman assert(Init < getNumExprs() && "Initializer access out of range!"); 33342ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman return cast_or_null<Expr>(Exprs[Init]); 33352ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman } 33361eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 33371eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump Expr* getExpr(unsigned Init) { 33382ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman assert(Init < getNumExprs() && "Initializer access out of range!"); 33392ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman return cast_or_null<Expr>(Exprs[Init]); 33402ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman } 33412ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman 334283ddad3ab513f5d73698cf9fbeb4ed3f011bc3b9Douglas Gregor Expr **getExprs() { return reinterpret_cast<Expr **>(Exprs); } 33431eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 33442ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman SourceLocation getLParenLoc() const { return LParenLoc; } 33452ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman SourceLocation getRParenLoc() const { return RParenLoc; } 33462ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman 33472ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman virtual SourceRange getSourceRange() const { 33482ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman return SourceRange(LParenLoc, RParenLoc); 33491eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump } 33502ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman static bool classof(const Stmt *T) { 33511eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == ParenListExprClass; 33522ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman } 33532ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman static bool classof(const ParenListExpr *) { return true; } 33541eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 33552ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman // Iterators 33562ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman virtual child_iterator child_begin(); 33572ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman virtual child_iterator child_end(); 335837bdfe284ad365f753741d1d89c078c148b3f4afArgyrios Kyrtzidis 335937bdfe284ad365f753741d1d89c078c148b3f4afArgyrios Kyrtzidis friend class PCHStmtReader; 336037bdfe284ad365f753741d1d89c078c148b3f4afArgyrios Kyrtzidis friend class PCHStmtWriter; 33612ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman}; 33622ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman 33631eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 33644eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff//===----------------------------------------------------------------------===// 33654eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff// Clang Extensions 33664eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff//===----------------------------------------------------------------------===// 33674eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff 3368a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner 3369a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner/// ExtVectorElementExpr - This represents access to specific elements of a 3370a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner/// vector, and may occur on the left hand side or right hand side. For example 3371a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner/// the following is legal: "V.xy = V.zw" if V is a 4 element extended vector. 3372a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner/// 337373525de7fd9bdd534382dc89a24f1f76db3e04b9Chris Lattner/// Note that the base may have either vector or pointer to vector type, just 337473525de7fd9bdd534382dc89a24f1f76db3e04b9Chris Lattner/// like a struct field reference. 337573525de7fd9bdd534382dc89a24f1f76db3e04b9Chris Lattner/// 3376a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattnerclass ExtVectorElementExpr : public Expr { 3377a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner Stmt *Base; 3378d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor IdentifierInfo *Accessor; 3379a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner SourceLocation AccessorLoc; 3380a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattnerpublic: 3381a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner ExtVectorElementExpr(QualType ty, Expr *base, IdentifierInfo &accessor, 3382a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner SourceLocation loc) 33832333f7727f97018d6742e1e0938133bcfad967abEli Friedman : Expr(ExtVectorElementExprClass, ty, base->isTypeDependent(), 33842333f7727f97018d6742e1e0938133bcfad967abEli Friedman base->isValueDependent()), 3385d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor Base(base), Accessor(&accessor), AccessorLoc(loc) {} 33861eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3387d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor /// \brief Build an empty vector element expression. 3388d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor explicit ExtVectorElementExpr(EmptyShell Empty) 3389d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor : Expr(ExtVectorElementExprClass, Empty) { } 3390d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor 3391a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner const Expr *getBase() const { return cast<Expr>(Base); } 3392a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner Expr *getBase() { return cast<Expr>(Base); } 3393d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor void setBase(Expr *E) { Base = E; } 3394d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor 3395d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor IdentifierInfo &getAccessor() const { return *Accessor; } 3396d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor void setAccessor(IdentifierInfo *II) { Accessor = II; } 3397d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor 3398d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor SourceLocation getAccessorLoc() const { return AccessorLoc; } 3399d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor void setAccessorLoc(SourceLocation L) { AccessorLoc = L; } 3400d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor 3401a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner /// getNumElements - Get the number of components being selected. 3402a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner unsigned getNumElements() const; 34031eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3404a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner /// containsDuplicateElements - Return true if any element access is 3405a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner /// repeated. 3406a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner bool containsDuplicateElements() const; 34071eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3408a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner /// getEncodedElementAccess - Encode the elements accessed into an llvm 3409a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner /// aggregate Constant of ConstantInt(s). 3410a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner void getEncodedElementAccess(llvm::SmallVectorImpl<unsigned> &Elts) const; 34111eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3412a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner virtual SourceRange getSourceRange() const { 3413a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner return SourceRange(getBase()->getLocStart(), AccessorLoc); 3414a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner } 34151eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 34162140e904dbe53657339cb5b1cc13de563ca0d1fcChris Lattner /// isArrow - Return true if the base expression is a pointer to vector, 34172140e904dbe53657339cb5b1cc13de563ca0d1fcChris Lattner /// return false if the base expression is a vector. 34182140e904dbe53657339cb5b1cc13de563ca0d1fcChris Lattner bool isArrow() const; 34191eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 34201eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 34211eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == ExtVectorElementExprClass; 3422a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner } 3423a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner static bool classof(const ExtVectorElementExpr *) { return true; } 34241eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3425a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner // Iterators 3426a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner virtual child_iterator child_begin(); 3427a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner virtual child_iterator child_end(); 3428a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner}; 3429a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner 3430a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner 343156ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroff/// BlockExpr - Adaptor class for mixing a BlockDecl with expressions. 34329c3c902835ef7d37300463ad47176ec21a67dc8bSteve Naroff/// ^{ statement-body } or ^(int arg1, float arg2){ statement-body } 34334eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroffclass BlockExpr : public Expr { 343456ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroffprotected: 343556ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroff BlockDecl *TheBlock; 3436b83d287bc7f47d36fb0751a481e2ef9308b37252Mike Stump bool HasBlockDeclRefExprs; 34374eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroffpublic: 3438b83d287bc7f47d36fb0751a481e2ef9308b37252Mike Stump BlockExpr(BlockDecl *BD, QualType ty, bool hasBlockDeclRefExprs) 34392333f7727f97018d6742e1e0938133bcfad967abEli Friedman : Expr(BlockExprClass, ty, ty->isDependentType(), false), 3440b83d287bc7f47d36fb0751a481e2ef9308b37252Mike Stump TheBlock(BD), HasBlockDeclRefExprs(hasBlockDeclRefExprs) {} 34419c3c902835ef7d37300463ad47176ec21a67dc8bSteve Naroff 344284af7c27cdc615ff917a501d61256b4049383c97Douglas Gregor /// \brief Build an empty block expression. 344384af7c27cdc615ff917a501d61256b4049383c97Douglas Gregor explicit BlockExpr(EmptyShell Empty) : Expr(BlockExprClass, Empty) { } 344484af7c27cdc615ff917a501d61256b4049383c97Douglas Gregor 3445d5cab5435371b8cc74a9e05ebd40b5995ebad149Anders Carlsson const BlockDecl *getBlockDecl() const { return TheBlock; } 344656ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroff BlockDecl *getBlockDecl() { return TheBlock; } 344784af7c27cdc615ff917a501d61256b4049383c97Douglas Gregor void setBlockDecl(BlockDecl *BD) { TheBlock = BD; } 344884af7c27cdc615ff917a501d61256b4049383c97Douglas Gregor 344956ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroff // Convenience functions for probing the underlying BlockDecl. 345056ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroff SourceLocation getCaretLocation() const; 345156ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroff const Stmt *getBody() const; 345256ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroff Stmt *getBody(); 34539c3c902835ef7d37300463ad47176ec21a67dc8bSteve Naroff 34549c3c902835ef7d37300463ad47176ec21a67dc8bSteve Naroff virtual SourceRange getSourceRange() const { 345556ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroff return SourceRange(getCaretLocation(), getBody()->getLocEnd()); 34569c3c902835ef7d37300463ad47176ec21a67dc8bSteve Naroff } 34579c3c902835ef7d37300463ad47176ec21a67dc8bSteve Naroff 345856ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroff /// getFunctionType - Return the underlying function type for this block. 345956ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroff const FunctionType *getFunctionType() const; 346056ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroff 3461b83d287bc7f47d36fb0751a481e2ef9308b37252Mike Stump /// hasBlockDeclRefExprs - Return true iff the block has BlockDeclRefExpr 34625b54b88c4082bb81b8b341b622fda9a85cbd5fadChris Lattner /// inside of the block that reference values outside the block. 3463b83d287bc7f47d36fb0751a481e2ef9308b37252Mike Stump bool hasBlockDeclRefExprs() const { return HasBlockDeclRefExprs; } 346484af7c27cdc615ff917a501d61256b4049383c97Douglas Gregor void setHasBlockDeclRefExprs(bool BDRE) { HasBlockDeclRefExprs = BDRE; } 3465b83d287bc7f47d36fb0751a481e2ef9308b37252Mike Stump 34661eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 34679c3c902835ef7d37300463ad47176ec21a67dc8bSteve Naroff return T->getStmtClass() == BlockExprClass; 34684eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff } 34694eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff static bool classof(const BlockExpr *) { return true; } 34701eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 34714eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff // Iterators 34724eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff virtual child_iterator child_begin(); 34734eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff virtual child_iterator child_end(); 34744eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff}; 34751eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 34764eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff/// BlockDeclRefExpr - A reference to a declared variable, function, 34774eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff/// enum, etc. 34784eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroffclass BlockDeclRefExpr : public Expr { 34791eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump ValueDecl *D; 34804eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff SourceLocation Loc; 34817d5c74ecbbd8719436c071f38657bc8e97ee4a24Fariborz Jahanian bool IsByRef : 1; 34827d5c74ecbbd8719436c071f38657bc8e97ee4a24Fariborz Jahanian bool ConstQualAdded : 1; 348389f9d3a7651d1225f3f56ae3387c83b98a26da00Fariborz Jahanian Stmt *CopyConstructorVal; 34844eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroffpublic: 34852333f7727f97018d6742e1e0938133bcfad967abEli Friedman // FIXME: Fix type/value dependence! 34861eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump BlockDeclRefExpr(ValueDecl *d, QualType t, SourceLocation l, bool ByRef, 348789f9d3a7651d1225f3f56ae3387c83b98a26da00Fariborz Jahanian bool constAdded = false, 348884ca008a462b515f63871253f494d53c9190363cFariborz Jahanian Stmt *copyConstructorVal = 0) 348984ca008a462b515f63871253f494d53c9190363cFariborz Jahanian : Expr(BlockDeclRefExprClass, t, (!t.isNull() && t->isDependentType()),false), 349052bc56a296b11b4fc6bf5ddf4ded5262f6484bdbFariborz Jahanian D(d), Loc(l), IsByRef(ByRef), 349189f9d3a7651d1225f3f56ae3387c83b98a26da00Fariborz Jahanian ConstQualAdded(constAdded), CopyConstructorVal(copyConstructorVal) {} 349294cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor 349394cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor // \brief Build an empty reference to a declared variable in a 349494cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor // block. 349594cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor explicit BlockDeclRefExpr(EmptyShell Empty) 349694cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor : Expr(BlockDeclRefExprClass, Empty) { } 34971eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 34984eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff ValueDecl *getDecl() { return D; } 34994eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff const ValueDecl *getDecl() const { return D; } 350094cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor void setDecl(ValueDecl *VD) { D = VD; } 350194cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor 350294cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor SourceLocation getLocation() const { return Loc; } 350394cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor void setLocation(SourceLocation L) { Loc = L; } 350494cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor 35054eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff virtual SourceRange getSourceRange() const { return SourceRange(Loc); } 35061eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 35074eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff bool isByRef() const { return IsByRef; } 350894cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor void setByRef(bool BR) { IsByRef = BR; } 35091eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 35107d5c74ecbbd8719436c071f38657bc8e97ee4a24Fariborz Jahanian bool isConstQualAdded() const { return ConstQualAdded; } 35117d5c74ecbbd8719436c071f38657bc8e97ee4a24Fariborz Jahanian void setConstQualAdded(bool C) { ConstQualAdded = C; } 351289f9d3a7651d1225f3f56ae3387c83b98a26da00Fariborz Jahanian 351389f9d3a7651d1225f3f56ae3387c83b98a26da00Fariborz Jahanian const Expr *getCopyConstructorExpr() const 351489f9d3a7651d1225f3f56ae3387c83b98a26da00Fariborz Jahanian { return cast_or_null<Expr>(CopyConstructorVal); } 351589f9d3a7651d1225f3f56ae3387c83b98a26da00Fariborz Jahanian Expr *getCopyConstructorExpr() 351689f9d3a7651d1225f3f56ae3387c83b98a26da00Fariborz Jahanian { return cast_or_null<Expr>(CopyConstructorVal); } 351789f9d3a7651d1225f3f56ae3387c83b98a26da00Fariborz Jahanian void setCopyConstructorExpr(Expr *E) { CopyConstructorVal = E; } 351894cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor 35191eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 35201eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == BlockDeclRefExprClass; 35214eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff } 35224eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff static bool classof(const BlockDeclRefExpr *) { return true; } 35231eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 35244eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff // Iterators 35254eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff virtual child_iterator child_begin(); 35264eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff virtual child_iterator child_end(); 35274eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff}; 35284eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff 35295f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} // end namespace clang 35305f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 35315f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer#endif 3532