Expr.h revision 993cdca0fed7deb646e4654dfb2607227a497faa
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" 215baba9d98364a3525d6afa15a04cdad82fd6dd30John McCall#include "clang/AST/OperationKinds.h" 22709210feee317b8d6690dd1d15c2b74cfe55e261Ted Kremenek#include "clang/AST/ASTVector.h" 23409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson#include "clang/AST/UsuallyTinyPtrVector.h" 245f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer#include "llvm/ADT/APSInt.h" 25525a05093a4816af961fe2bc6b8a81c17e2e26c2Chris Lattner#include "llvm/ADT/APFloat.h" 263b8d116703db8018f855cbb4733ace426422623bNate Begeman#include "llvm/ADT/SmallVector.h" 27b648023da23e8b227cdda57a241db4c6f368726bDaniel Dunbar#include "llvm/ADT/StringRef.h" 28c5ae899b4bbf65488445316c63168079177db0edSteve Naroff#include <vector> 295f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 305f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencernamespace clang { 31590b6646ef747d2f7b42e5f40487ff07642d7b6fChris Lattner class ASTContext; 32c44eec6dd29ee9415cbd38a35deff4c8b67abb6aAnders Carlsson class APValue; 33c4a1dea2dc56bd1357ec91b829a0b9e68229a13eDaniel Dunbar class Decl; 34c4a1dea2dc56bd1357ec91b829a0b9e68229a13eDaniel Dunbar class IdentifierInfo; 35c4a1dea2dc56bd1357ec91b829a0b9e68229a13eDaniel Dunbar class ParmVarDecl; 368e9bebdea69c590dedfbf27374114cb76fe12fbdDouglas Gregor class NamedDecl; 37c4a1dea2dc56bd1357ec91b829a0b9e68229a13eDaniel Dunbar class ValueDecl; 3856ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroff class BlockDecl; 39409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson class CXXBaseSpecifier; 4088a3514f36de96b19cdf50141c640df1a5f13f6cDouglas Gregor class CXXOperatorCallExpr; 4188a3514f36de96b19cdf50141c640df1a5f13f6cDouglas Gregor class CXXMemberCallExpr; 42833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall class TemplateArgumentLoc; 43d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall class TemplateArgumentListInfo; 4488a3514f36de96b19cdf50141c640df1a5f13f6cDouglas Gregor 457ab9d574d27ecee1f130e5755aa403e5ab529b6bAnders Carlsson/// \brief A simple array of base specifiers. 46f871d0cc377a1367b519a6cce26be74607566ebaJohn McCalltypedef llvm::SmallVector<CXXBaseSpecifier*, 4> CXXCastPath; 477ab9d574d27ecee1f130e5755aa403e5ab529b6bAnders Carlsson 485f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// Expr - This represents one expression. Note that Expr's are subclasses of 495f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// Stmt. This allows an expression to be transparently used any place a Stmt 505f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// is required. 515f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 525f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass Expr : public Stmt { 535f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer QualType TR; 54898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor 55bef0efd11bc4430a3ee437a3213cec5c18af855aChris Lattner virtual void ANCHOR(); // key function. 569ea62768fca25d829d80199cf4f8cf0f4dd39251Douglas Gregorprotected: 571eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /// TypeDependent - Whether this expression is type-dependent 58898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// (C++ [temp.dep.expr]). 59898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor bool TypeDependent : 1; 60898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor 611eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /// ValueDependent - Whether this expression is value-dependent 62898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// (C++ [temp.dep.constexpr]). 63898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor bool ValueDependent : 1; 64898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor 655baba9d98364a3525d6afa15a04cdad82fd6dd30John McCall /// ValueKind - The value classification of this expression. 665baba9d98364a3525d6afa15a04cdad82fd6dd30John McCall /// Only actually used by certain subclasses. 675baba9d98364a3525d6afa15a04cdad82fd6dd30John McCall unsigned ValueKind : 2; 685baba9d98364a3525d6afa15a04cdad82fd6dd30John McCall 695baba9d98364a3525d6afa15a04cdad82fd6dd30John McCall enum { BitsRemaining = 28 }; 70f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall 71898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor Expr(StmtClass SC, QualType T, bool TD, bool VD) 725baba9d98364a3525d6afa15a04cdad82fd6dd30John McCall : Stmt(SC), TypeDependent(TD), ValueDependent(VD), ValueKind(0) { 73898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor setType(T); 74898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor } 75898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor 760b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor /// \brief Construct an empty expression. 770b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor explicit Expr(StmtClass SC, EmptyShell) : Stmt(SC) { } 780b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor 791eb4433ac451dc16f4133a88af2d002ac26c58efMike Stumppublic: 8043d9d9243329b1b75d1a6efdad9f16d6fb386b8eDouglas Gregor /// \brief Increases the reference count for this expression. 8143d9d9243329b1b75d1a6efdad9f16d6fb386b8eDouglas Gregor /// 8243d9d9243329b1b75d1a6efdad9f16d6fb386b8eDouglas Gregor /// Invoke the Retain() operation when this expression 8343d9d9243329b1b75d1a6efdad9f16d6fb386b8eDouglas Gregor /// is being shared by another owner. 8443d9d9243329b1b75d1a6efdad9f16d6fb386b8eDouglas Gregor Expr *Retain() { 8543d9d9243329b1b75d1a6efdad9f16d6fb386b8eDouglas Gregor Stmt::Retain(); 8643d9d9243329b1b75d1a6efdad9f16d6fb386b8eDouglas Gregor return this; 8743d9d9243329b1b75d1a6efdad9f16d6fb386b8eDouglas Gregor } 881eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 89f7c2aa0b049272d8f318988c1965760dcb852578Douglas Gregor QualType getType() const { return TR; } 901eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump void setType(QualType t) { 919d293dfc0ad7c44ae0b5eb9517f1ed8c8d8b7ff7Douglas Gregor // In C++, the type of an expression is always adjusted so that it 929d293dfc0ad7c44ae0b5eb9517f1ed8c8d8b7ff7Douglas Gregor // will not have reference type an expression will never have 939d293dfc0ad7c44ae0b5eb9517f1ed8c8d8b7ff7Douglas Gregor // reference type (C++ [expr]p6). Use 949d293dfc0ad7c44ae0b5eb9517f1ed8c8d8b7ff7Douglas Gregor // QualType::getNonReferenceType() to retrieve the non-reference 959d293dfc0ad7c44ae0b5eb9517f1ed8c8d8b7ff7Douglas Gregor // type. Additionally, inspect Expr::isLvalue to determine whether 969d293dfc0ad7c44ae0b5eb9517f1ed8c8d8b7ff7Douglas Gregor // an expression that is adjusted in this manner should be 979d293dfc0ad7c44ae0b5eb9517f1ed8c8d8b7ff7Douglas Gregor // considered an lvalue. 98905d11d53aeb6b26744f44fedc2b2820c7a62df6Douglas Gregor assert((t.isNull() || !t->isReferenceType()) && 998320aaaa01d931aa234fc3bce05b399ef41898d5Daniel Dunbar "Expressions can't have reference type"); 100f7c2aa0b049272d8f318988c1965760dcb852578Douglas Gregor 1011eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump TR = t; 1029d293dfc0ad7c44ae0b5eb9517f1ed8c8d8b7ff7Douglas Gregor } 10377ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek 104898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// isValueDependent - Determines whether this expression is 105898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// value-dependent (C++ [temp.dep.constexpr]). For example, the 106898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// array bound of "Chars" in the following example is 1071eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /// value-dependent. 108898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// @code 109898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// template<int Size, char (&Chars)[Size]> struct meta_string; 110898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// @endcode 111898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor bool isValueDependent() const { return ValueDependent; } 112898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor 1130b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor /// \brief Set whether this expression is value-dependent or not. 1140b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor void setValueDependent(bool VD) { ValueDependent = VD; } 1150b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor 116898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// isTypeDependent - Determines whether this expression is 117898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// type-dependent (C++ [temp.dep.expr]), which means that its type 118898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// could change from one template instantiation to the next. For 119898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// example, the expressions "x" and "x + y" are type-dependent in 120898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// the following code, but "y" is not type-dependent: 121898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// @code 1221eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /// template<typename T> 123898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// void add(T x, int y) { 124898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// x + y; 125898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// } 126898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// @endcode 127898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor bool isTypeDependent() const { return TypeDependent; } 128898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor 1290b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor /// \brief Set whether this expression is type-dependent or not. 1300b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor void setTypeDependent(bool TD) { TypeDependent = TD; } 1310b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor 1325f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// SourceLocation tokens are not useful in isolation - they are low level 1335f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// value objects created/interpreted by SourceManager. We assume AST 1345f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// clients will have a pointer to the respective SourceManager. 1355f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer virtual SourceRange getSourceRange() const = 0; 1365f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1375f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// getExprLoc - Return the preferred location for the arrow when diagnosing 1385f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// a problem with a generic expression. 1395f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer virtual SourceLocation getExprLoc() const { return getLocStart(); } 1401eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 141026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner /// isUnusedResultAWarning - Return true if this immediate expression should 142026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner /// be warned about if the result is unused. If so, fill in Loc and Ranges 143026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner /// with location to warn on and the source range[s] to report with the 144026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner /// warning. 145026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner bool isUnusedResultAWarning(SourceLocation &Loc, SourceRange &R1, 146df317bf71653eeb235da8337b1e8e790f9653aa4Mike Stump SourceRange &R2, ASTContext &Ctx) const; 1471eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1485f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// isLvalue - C99 6.3.2.1: an lvalue is an expression with an object type or 1495f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// incomplete type other than void. Nonarray expressions that can be lvalues: 1505f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// - name, where name must be a variable 1515f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// - e[i] 1525f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// - (e), where e must be an lvalue 1535f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// - e.name, where e must be an lvalue 1545f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// - e->name 1555f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// - *e, the type of e cannot be a function type 1565f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// - string-constant 15708ad47cbd1f81fcb31dbc731c13b885a07e12704Bill Wendling /// - reference type [C++ [expr]] 15876458501a8963fa11b91c9337a487de6871169b4Sebastian Redl /// - b ? x : y, where x and y are lvalues of suitable types [C++] 1595f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// 1605f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer enum isLvalueResult { 1615f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer LV_Valid, 1625f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer LV_NotObjectType, 1635f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer LV_IncompleteVoidType, 164fec0b49c3fa621fbf63e420f3d54a5bb3a0265d2Steve Naroff LV_DuplicateVectorComponents, 16586f194083504938df72135b5b66bf0c5cafd9498Douglas Gregor LV_InvalidExpression, 1662514a309204341798f96912ce7a90841bea59727Fariborz Jahanian LV_MemberFunction, 167e9ff443040cb571ae2c5c2626c4dc9a9a812d84aFariborz Jahanian LV_SubObjCPropertySetting, 168e873fb74219f48407ae0b8fa083aa7f0b6ff1427Douglas Gregor LV_ClassTemporary 1695f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer }; 17028be73f74c9e241a23ea24fe5756623de6bf1084Chris Lattner isLvalueResult isLvalue(ASTContext &Ctx) const; 17153202857c60214d80950a975e6e52aebf30bd16aEli Friedman 1725f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// isModifiableLvalue - C99 6.3.2.1: an lvalue that does not have array type, 1735f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// does not have an incomplete type, does not have a const-qualified type, 1741eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /// and if it is a structure or union, does not have any member (including, 1755f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// recursively, any member or element of all contained aggregates or unions) 1765f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// with a const-qualified type. 17744e35f7b2b5da1eb338639e46bf0b5522e75c5f3Daniel Dunbar /// 17844e35f7b2b5da1eb338639e46bf0b5522e75c5f3Daniel Dunbar /// \param Loc [in] [out] - A source location which *may* be filled 17944e35f7b2b5da1eb338639e46bf0b5522e75c5f3Daniel Dunbar /// in with the location of the expression making this a 18044e35f7b2b5da1eb338639e46bf0b5522e75c5f3Daniel Dunbar /// non-modifiable lvalue, if specified. 1815f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer enum isModifiableLvalueResult { 1825f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer MLV_Valid, 1835f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer MLV_NotObjectType, 1845f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer MLV_IncompleteVoidType, 185fec0b49c3fa621fbf63e420f3d54a5bb3a0265d2Steve Naroff MLV_DuplicateVectorComponents, 1865f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer MLV_InvalidExpression, 187ca354faa7e9b99af17070c82b9662a5fca76422cChris Lattner MLV_LValueCast, // Specialized form of MLV_InvalidExpression. 1885f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer MLV_IncompleteType, 1895f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer MLV_ConstQualified, 1904f6a7d7ead09b439216c32f2de806a998aeb222aSteve Naroff MLV_ArrayType, 1915daf570d0ce027e18ed5f9d66e6b2a14a40b720dFariborz Jahanian MLV_NotBlockQualified, 192ba8d2d684e74a20bef03828c21c991d222c7e9e5Fariborz Jahanian MLV_ReadonlyProperty, 19386f194083504938df72135b5b66bf0c5cafd9498Douglas Gregor MLV_NoSetterProperty, 1942514a309204341798f96912ce7a90841bea59727Fariborz Jahanian MLV_MemberFunction, 195e9ff443040cb571ae2c5c2626c4dc9a9a812d84aFariborz Jahanian MLV_SubObjCPropertySetting, 196e873fb74219f48407ae0b8fa083aa7f0b6ff1427Douglas Gregor MLV_ClassTemporary 1975f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer }; 19844e35f7b2b5da1eb338639e46bf0b5522e75c5f3Daniel Dunbar isModifiableLvalueResult isModifiableLvalue(ASTContext &Ctx, 19944e35f7b2b5da1eb338639e46bf0b5522e75c5f3Daniel Dunbar SourceLocation *Loc = 0) const; 2001eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2012111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl /// \brief The return type of classify(). Represents the C++0x expression 2022111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl /// taxonomy. 2032111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl class Classification { 2042111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl public: 2052111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl /// \brief The various classification results. Most of these mean prvalue. 2062111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl enum Kinds { 2072111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl CL_LValue, 2082111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl CL_XValue, 2092111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl CL_Function, // Functions cannot be lvalues in C. 2102111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl CL_Void, // Void cannot be an lvalue in C. 2112111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl CL_DuplicateVectorComponents, // A vector shuffle with dupes. 2122111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl CL_MemberFunction, // An expression referring to a member function 2132111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl CL_SubObjCPropertySetting, 2142111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl CL_ClassTemporary, // A prvalue of class type 2152111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl CL_PRValue // A prvalue for any other reason, of any other type 2162111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl }; 2172111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl /// \brief The results of modification testing. 2182111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl enum ModifiableType { 2192111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl CM_Untested, // testModifiable was false. 2202111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl CM_Modifiable, 2212111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl CM_RValue, // Not modifiable because it's an rvalue 2222111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl CM_Function, // Not modifiable because it's a function; C++ only 2232111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl CM_LValueCast, // Same as CM_RValue, but indicates GCC cast-as-lvalue ext 2242111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl CM_NotBlockQualified, // Not captured in the closure 2252111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl CM_NoSetterProperty,// Implicit assignment to ObjC property without setter 2262111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl CM_ConstQualified, 2272111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl CM_ArrayType, 2282111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl CM_IncompleteType 2292111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl }; 2302111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl 2312111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl private: 2322111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl friend class Expr; 2332111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl 2342111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl unsigned short Kind; 2352111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl unsigned short Modifiable; 2362111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl 2372111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl explicit Classification(Kinds k, ModifiableType m) 2382111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl : Kind(k), Modifiable(m) 2392111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl {} 2402111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl 2412111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl public: 2422111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl Classification() {} 2432111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl 2442111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl Kinds getKind() const { return static_cast<Kinds>(Kind); } 2452111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl ModifiableType getModifiable() const { 2462111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl assert(Modifiable != CM_Untested && "Did not test for modifiability."); 2472111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl return static_cast<ModifiableType>(Modifiable); 2482111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl } 2492111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl bool isLValue() const { return Kind == CL_LValue; } 2502111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl bool isXValue() const { return Kind == CL_XValue; } 2512111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl bool isGLValue() const { return Kind <= CL_XValue; } 2522111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl bool isPRValue() const { return Kind >= CL_Function; } 2532111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl bool isRValue() const { return Kind >= CL_XValue; } 2542111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl bool isModifiable() const { return getModifiable() == CM_Modifiable; } 2552111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl }; 2562111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl /// \brief classify - Classify this expression according to the C++0x 2572111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl /// expression taxonomy. 2582111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl /// 2592111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl /// C++0x defines ([basic.lval]) a new taxonomy of expressions to replace the 2602111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl /// old lvalue vs rvalue. This function determines the type of expression this 2612111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl /// is. There are three expression types: 2622111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl /// - lvalues are classical lvalues as in C++03. 2632111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl /// - prvalues are equivalent to rvalues in C++03. 2642111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl /// - xvalues are expressions yielding unnamed rvalue references, e.g. a 2652111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl /// function returning an rvalue reference. 2662111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl /// lvalues and xvalues are collectively referred to as glvalues, while 2672111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl /// prvalues and xvalues together form rvalues. 2682111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl Classification Classify(ASTContext &Ctx) const { 2692111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl return ClassifyImpl(Ctx, 0); 2702111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl } 2712111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl 2722111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl /// \brief classifyModifiable - Classify this expression according to the 2732111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl /// C++0x expression taxonomy, and see if it is valid on the left side 2742111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl /// of an assignment. 2752111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl /// 2762111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl /// This function extends classify in that it also tests whether the 2772111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl /// expression is modifiable (C99 6.3.2.1p1). 2782111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl /// \param Loc A source location that might be filled with a relevant location 2792111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl /// if the expression is not modifiable. 2802111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl Classification ClassifyModifiable(ASTContext &Ctx, SourceLocation &Loc) const{ 2812111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl return ClassifyImpl(Ctx, &Loc); 2822111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl } 2832111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl 2842111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redlprivate: 2852111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl Classification ClassifyImpl(ASTContext &Ctx, SourceLocation *Loc) const; 2862111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl 2872111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redlpublic: 2882111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl 28933bbbc5ec8269bc2cde5b84f970fa49319a30267Douglas Gregor /// \brief If this expression refers to a bit-field, retrieve the 29033bbbc5ec8269bc2cde5b84f970fa49319a30267Douglas Gregor /// declaration of that bit-field. 29133bbbc5ec8269bc2cde5b84f970fa49319a30267Douglas Gregor FieldDecl *getBitField(); 2925f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 29338d068e8f13a119b89a3b8b0f79f35cab1ffd09aAnders Carlsson const FieldDecl *getBitField() const { 29438d068e8f13a119b89a3b8b0f79f35cab1ffd09aAnders Carlsson return const_cast<Expr*>(this)->getBitField(); 29538d068e8f13a119b89a3b8b0f79f35cab1ffd09aAnders Carlsson } 2961eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 297093802675b1548f2a5f44c29938d65cce00d58bbAnders Carlsson /// \brief Returns whether this expression refers to a vector element. 298093802675b1548f2a5f44c29938d65cce00d58bbAnders Carlsson bool refersToVectorElement() const; 299c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 3002b334bb3126a67895813e49e6228dad4aec0b4d6Chris Lattner /// isKnownToHaveBooleanValue - Return true if this is an integer expression 3012b334bb3126a67895813e49e6228dad4aec0b4d6Chris Lattner /// that is known to return 0 or 1. This happens for _Bool/bool expressions 3022b334bb3126a67895813e49e6228dad4aec0b4d6Chris Lattner /// but also int expressions which are produced by things like comparisons in 3032b334bb3126a67895813e49e6228dad4aec0b4d6Chris Lattner /// C. 3042b334bb3126a67895813e49e6228dad4aec0b4d6Chris Lattner bool isKnownToHaveBooleanValue() const; 305c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 3065f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// isIntegerConstantExpr - Return true if this expression is a valid integer 3075f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// constant expression, and, if so, return its value in Result. If not a 3085f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// valid i-c-e, return false and fill in Loc (if specified) with the location 3095f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// of the invalid expression. 310590b6646ef747d2f7b42e5f40487ff07642d7b6fChris Lattner bool isIntegerConstantExpr(llvm::APSInt &Result, ASTContext &Ctx, 311590b6646ef747d2f7b42e5f40487ff07642d7b6fChris Lattner SourceLocation *Loc = 0, 3125f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool isEvaluated = true) const; 313590b6646ef747d2f7b42e5f40487ff07642d7b6fChris Lattner bool isIntegerConstantExpr(ASTContext &Ctx, SourceLocation *Loc = 0) const { 3148070a8497c0fb3e6f70a557f788405d8945b1208Daniel Dunbar llvm::APSInt X; 315590b6646ef747d2f7b42e5f40487ff07642d7b6fChris Lattner return isIntegerConstantExpr(X, Ctx, Loc); 3165f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 317c9e8f606787b0bc0c3b08e566b87cc1751694168Eli Friedman /// isConstantInitializer - Returns true if this expression is a constant 318c9e8f606787b0bc0c3b08e566b87cc1751694168Eli Friedman /// initializer, which can be emitted at compile-time. 3194204f07fc8bffe6d320b2de95fea274ccf37a17bJohn McCall bool isConstantInitializer(ASTContext &Ctx, bool ForRef) const; 3201eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 32194deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson /// EvalResult is a struct with detailed info about an evaluated expression. 32294deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson struct EvalResult { 3232d6744ff04c1690a1485178d550d2fab84a0270bDaniel Dunbar /// Val - This is the value the expression can be folded to. 32494deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson APValue Val; 3251eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 32694deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson /// HasSideEffects - Whether the evaluated expression has side effects. 32794deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson /// For example, (f() && 0) can be folded, but it still has side effects. 32894deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson bool HasSideEffects; 3291eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 33094deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson /// Diag - If the expression is unfoldable, then Diag contains a note 33194deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson /// diagnostic indicating why it's not foldable. DiagLoc indicates a caret 33294deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson /// position for the error, and DiagExpr is the expression that caused 33394deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson /// the error. 33494deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson /// If the expression is foldable, but not an integer constant expression, 33594deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson /// Diag contains a note diagnostic that describes why it isn't an integer 33694deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson /// constant expression. If the expression *is* an integer constant 33794deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson /// expression, then Diag will be zero. 33894deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson unsigned Diag; 33994deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson const Expr *DiagExpr; 34094deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson SourceLocation DiagLoc; 3411eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 34294deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson EvalResult() : HasSideEffects(false), Diag(0), DiagExpr(0) {} 343e17a6436b429e4b18a5e157061fb13bbc677b3b0Abramo Bagnara 344e17a6436b429e4b18a5e157061fb13bbc677b3b0Abramo Bagnara // isGlobalLValue - Return true if the evaluated lvalue expression 345e17a6436b429e4b18a5e157061fb13bbc677b3b0Abramo Bagnara // is global. 346e17a6436b429e4b18a5e157061fb13bbc677b3b0Abramo Bagnara bool isGlobalLValue() const; 347e17a6436b429e4b18a5e157061fb13bbc677b3b0Abramo Bagnara // hasSideEffects - Return true if the evaluated expression has 348e17a6436b429e4b18a5e157061fb13bbc677b3b0Abramo Bagnara // side effects. 349e17a6436b429e4b18a5e157061fb13bbc677b3b0Abramo Bagnara bool hasSideEffects() const { 350e17a6436b429e4b18a5e157061fb13bbc677b3b0Abramo Bagnara return HasSideEffects; 351e17a6436b429e4b18a5e157061fb13bbc677b3b0Abramo Bagnara } 35294deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson }; 35394deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson 3546ee7aa154e8bbb21a21254293410b944f78b0bfeChris Lattner /// Evaluate - Return true if this is a constant which we can fold using 355019f4e858e78587f2241ff1a76c747d7bcd7578cChris Lattner /// any crazy technique (that has nothing to do with language standards) that 356019f4e858e78587f2241ff1a76c747d7bcd7578cChris Lattner /// we want to. If this function returns true, it returns the folded constant 357019f4e858e78587f2241ff1a76c747d7bcd7578cChris Lattner /// in Result. 3585b45d4ef1ea3f04ec863daf8aa29be6c6e021750Anders Carlsson bool Evaluate(EvalResult &Result, ASTContext &Ctx) const; 3595b45d4ef1ea3f04ec863daf8aa29be6c6e021750Anders Carlsson 360cd7a445c6b46c5585580dfb652300c8483c0cb6bJohn McCall /// EvaluateAsBooleanCondition - Return true if this is a constant 361cd7a445c6b46c5585580dfb652300c8483c0cb6bJohn McCall /// which we we can fold and convert to a boolean condition using 362cd7a445c6b46c5585580dfb652300c8483c0cb6bJohn McCall /// any crazy technique that we want to. 363cd7a445c6b46c5585580dfb652300c8483c0cb6bJohn McCall bool EvaluateAsBooleanCondition(bool &Result, ASTContext &Ctx) const; 364cd7a445c6b46c5585580dfb652300c8483c0cb6bJohn McCall 3656ee7aa154e8bbb21a21254293410b944f78b0bfeChris Lattner /// isEvaluatable - Call Evaluate to see if this expression can be constant 36645b6b9d080ac56917337d73d8f1cd6374b27b05dChris Lattner /// folded, but discard the result. 36745b6b9d080ac56917337d73d8f1cd6374b27b05dChris Lattner bool isEvaluatable(ASTContext &Ctx) const; 368c44eec6dd29ee9415cbd38a35deff4c8b67abb6aAnders Carlsson 3696ddf4784a22b994b954ed74c6061d4603d474639Fariborz Jahanian /// HasSideEffects - This routine returns true for all those expressions 370c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt /// which must be evaluated each time and must not be optimization away 3716ddf4784a22b994b954ed74c6061d4603d474639Fariborz Jahanian /// or evaluated at compile time. Example is a function call, volatile 3726ddf4784a22b994b954ed74c6061d4603d474639Fariborz Jahanian /// variable read. 373393c247fe025ccb5f914e37e948192ea86faef8cFariborz Jahanian bool HasSideEffects(ASTContext &Ctx) const; 374c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 37551fe996231b1d7199f76e4005ff4c943d5deeecdAnders Carlsson /// EvaluateAsInt - Call Evaluate and return the folded integer. This 37651fe996231b1d7199f76e4005ff4c943d5deeecdAnders Carlsson /// must be called on an expression that constant folds to an integer. 37751fe996231b1d7199f76e4005ff4c943d5deeecdAnders Carlsson llvm::APSInt EvaluateAsInt(ASTContext &Ctx) const; 37851fe996231b1d7199f76e4005ff4c943d5deeecdAnders Carlsson 379b2f295c8050fb8c141bf2cf38eed0a56e99d0092Eli Friedman /// EvaluateAsLValue - Evaluate an expression to see if it's a lvalue 380b2f295c8050fb8c141bf2cf38eed0a56e99d0092Eli Friedman /// with link time known address. 3811b78276a75a5a0f496a82429c1ff9604d622a76dAnders Carlsson bool EvaluateAsLValue(EvalResult &Result, ASTContext &Ctx) const; 3821b78276a75a5a0f496a82429c1ff9604d622a76dAnders Carlsson 383e17a6436b429e4b18a5e157061fb13bbc677b3b0Abramo Bagnara /// EvaluateAsLValue - Evaluate an expression to see if it's a lvalue. 384e17a6436b429e4b18a5e157061fb13bbc677b3b0Abramo Bagnara bool EvaluateAsAnyLValue(EvalResult &Result, ASTContext &Ctx) const; 385e17a6436b429e4b18a5e157061fb13bbc677b3b0Abramo Bagnara 386ce94049b69f75b44c18584fe79cd238978b6b0d5Douglas Gregor /// \brief Enumeration used to describe how \c isNullPointerConstant() 387ce94049b69f75b44c18584fe79cd238978b6b0d5Douglas Gregor /// should cope with value-dependent expressions. 388ce94049b69f75b44c18584fe79cd238978b6b0d5Douglas Gregor enum NullPointerConstantValueDependence { 389ce94049b69f75b44c18584fe79cd238978b6b0d5Douglas Gregor /// \brief Specifies that the expression should never be value-dependent. 390ce94049b69f75b44c18584fe79cd238978b6b0d5Douglas Gregor NPC_NeverValueDependent = 0, 391c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 392ce94049b69f75b44c18584fe79cd238978b6b0d5Douglas Gregor /// \brief Specifies that a value-dependent expression of integral or 393ce94049b69f75b44c18584fe79cd238978b6b0d5Douglas Gregor /// dependent type should be considered a null pointer constant. 394ce94049b69f75b44c18584fe79cd238978b6b0d5Douglas Gregor NPC_ValueDependentIsNull, 395c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 396ce94049b69f75b44c18584fe79cd238978b6b0d5Douglas Gregor /// \brief Specifies that a value-dependent expression should be considered 397ce94049b69f75b44c18584fe79cd238978b6b0d5Douglas Gregor /// to never be a null pointer constant. 398ce94049b69f75b44c18584fe79cd238978b6b0d5Douglas Gregor NPC_ValueDependentIsNotNull 399ce94049b69f75b44c18584fe79cd238978b6b0d5Douglas Gregor }; 400c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 401efa9b3877ef298bcb792600ac33521827e1f7fafAnders Carlsson /// isNullPointerConstant - C99 6.3.2.3p3 - Return true if this is either an 402efa9b3877ef298bcb792600ac33521827e1f7fafAnders Carlsson /// integer constant expression with the value zero, or if this is one that is 403efa9b3877ef298bcb792600ac33521827e1f7fafAnders Carlsson /// cast to void*. 404ce94049b69f75b44c18584fe79cd238978b6b0d5Douglas Gregor bool isNullPointerConstant(ASTContext &Ctx, 405ce94049b69f75b44c18584fe79cd238978b6b0d5Douglas Gregor NullPointerConstantValueDependence NPC) const; 406efa9b3877ef298bcb792600ac33521827e1f7fafAnders Carlsson 40744baa8abba2a1552b6b50bf750a8750ab9da9f76Fariborz Jahanian /// isOBJCGCCandidate - Return true if this expression may be used in a read/ 4081eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /// write barrier. 409102e390bcb5a1fb1a8fdbc8505e6dfd905374bbdFariborz Jahanian bool isOBJCGCCandidate(ASTContext &Ctx) const; 4101eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4114e99a5fc3b203397a91136c6e695e405fb8fc606Ted Kremenek /// IgnoreParens - Ignore parentheses. If this Expr is a ParenExpr, return 4121eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /// its subexpression. If that subexpression is also a ParenExpr, 4134e99a5fc3b203397a91136c6e695e405fb8fc606Ted Kremenek /// then this method recursively returns its subexpression, and so forth. 4144e99a5fc3b203397a91136c6e695e405fb8fc606Ted Kremenek /// Otherwise, the method returns the current Expr. 4152b334bb3126a67895813e49e6228dad4aec0b4d6Chris Lattner Expr *IgnoreParens(); 41656f349400c5932a196509c0480ff6f99a9a0b48fChris Lattner 41756f349400c5932a196509c0480ff6f99a9a0b48fChris Lattner /// IgnoreParenCasts - Ignore parentheses and casts. Strip off any ParenExpr 41827c8dc06f65d7abcf6a7e7f64a7960c9a150ca01Douglas Gregor /// or CastExprs, returning their operand. 41956f349400c5932a196509c0480ff6f99a9a0b48fChris Lattner Expr *IgnoreParenCasts(); 4201eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4212fc46bf1a9bc31d50f82de37c70ea257d3cded27John McCall /// IgnoreParenImpCasts - Ignore parentheses and implicit casts. Strip off any 4222fc46bf1a9bc31d50f82de37c70ea257d3cded27John McCall /// ParenExpr or ImplicitCastExprs, returning their operand. 4232fc46bf1a9bc31d50f82de37c70ea257d3cded27John McCall Expr *IgnoreParenImpCasts(); 4242fc46bf1a9bc31d50f82de37c70ea257d3cded27John McCall 425ecdd84147c0765caa999ddc22dde25b42712bb4dChris Lattner /// IgnoreParenNoopCasts - Ignore parentheses and casts that do not change the 426ecdd84147c0765caa999ddc22dde25b42712bb4dChris Lattner /// value (including ptr->int casts of the same size). Strip off any 427ecdd84147c0765caa999ddc22dde25b42712bb4dChris Lattner /// ParenExpr or CastExprs, returning their operand. 428ecdd84147c0765caa999ddc22dde25b42712bb4dChris Lattner Expr *IgnoreParenNoopCasts(ASTContext &Ctx); 4291eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4306eef519fc8a97bb7ca6066f23d35e10f06b2c1b5Douglas Gregor /// \brief Determine whether this expression is a default function argument. 4316eef519fc8a97bb7ca6066f23d35e10f06b2c1b5Douglas Gregor /// 4326eef519fc8a97bb7ca6066f23d35e10f06b2c1b5Douglas Gregor /// Default arguments are implicitly generated in the abstract syntax tree 433c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt /// by semantic analysis for function calls, object constructions, etc. in 4346eef519fc8a97bb7ca6066f23d35e10f06b2c1b5Douglas Gregor /// C++. Default arguments are represented by \c CXXDefaultArgExpr nodes; 4356eef519fc8a97bb7ca6066f23d35e10f06b2c1b5Douglas Gregor /// this routine also looks through any implicit casts to determine whether 4366eef519fc8a97bb7ca6066f23d35e10f06b2c1b5Douglas Gregor /// the expression is a default argument. 4376eef519fc8a97bb7ca6066f23d35e10f06b2c1b5Douglas Gregor bool isDefaultArgument() const; 438c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 4392f59979a7cc7929f53c9984423b0abeb83113442Douglas Gregor /// \brief Determine whether this expression directly creates a 4402f59979a7cc7929f53c9984423b0abeb83113442Douglas Gregor /// temporary object (of class type). 4412f59979a7cc7929f53c9984423b0abeb83113442Douglas Gregor bool isTemporaryObject() const { return getTemporaryObject() != 0; } 4422f59979a7cc7929f53c9984423b0abeb83113442Douglas Gregor 4432f59979a7cc7929f53c9984423b0abeb83113442Douglas Gregor /// \brief If this expression directly creates a temporary object of 4442f59979a7cc7929f53c9984423b0abeb83113442Douglas Gregor /// class type, return the expression that actually constructs that 4452f59979a7cc7929f53c9984423b0abeb83113442Douglas Gregor /// temporary object. 4462f59979a7cc7929f53c9984423b0abeb83113442Douglas Gregor const Expr *getTemporaryObject() const; 4472f59979a7cc7929f53c9984423b0abeb83113442Douglas Gregor 4482b334bb3126a67895813e49e6228dad4aec0b4d6Chris Lattner const Expr *IgnoreParens() const { 4494e99a5fc3b203397a91136c6e695e405fb8fc606Ted Kremenek return const_cast<Expr*>(this)->IgnoreParens(); 4504e99a5fc3b203397a91136c6e695e405fb8fc606Ted Kremenek } 45156f349400c5932a196509c0480ff6f99a9a0b48fChris Lattner const Expr *IgnoreParenCasts() const { 45256f349400c5932a196509c0480ff6f99a9a0b48fChris Lattner return const_cast<Expr*>(this)->IgnoreParenCasts(); 45356f349400c5932a196509c0480ff6f99a9a0b48fChris Lattner } 454ecdd84147c0765caa999ddc22dde25b42712bb4dChris Lattner const Expr *IgnoreParenNoopCasts(ASTContext &Ctx) const { 455ecdd84147c0765caa999ddc22dde25b42712bb4dChris Lattner return const_cast<Expr*>(this)->IgnoreParenNoopCasts(Ctx); 456ecdd84147c0765caa999ddc22dde25b42712bb4dChris Lattner } 4571eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 458898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor static bool hasAnyTypeDependentArguments(Expr** Exprs, unsigned NumExprs); 459898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor static bool hasAnyValueDependentArguments(Expr** Exprs, unsigned NumExprs); 460898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor 4611eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 4625f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return T->getStmtClass() >= firstExprConstant && 4631eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump T->getStmtClass() <= lastExprConstant; 4645f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 4655f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const Expr *) { return true; } 4665f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 4675f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 4681eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4695549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek//===----------------------------------------------------------------------===// 4705f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// Primary Expressions. 4715f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer//===----------------------------------------------------------------------===// 4725f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 473a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor/// \brief Represents the qualifier that may precede a C++ name, e.g., the 474a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor/// "std::" in "std::sort". 475a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregorstruct NameQualifier { 476a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// \brief The nested name specifier. 477a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor NestedNameSpecifier *NNS; 478c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 479a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// \brief The source range covered by the nested name specifier. 480a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor SourceRange Range; 481a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor}; 482a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor 483a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor/// \brief Represents an explicit template argument list in C++, e.g., 484a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor/// the "<int>" in "sort<int>". 485a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregorstruct ExplicitTemplateArgumentList { 486a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// \brief The source location of the left angle bracket ('<'); 487a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor SourceLocation LAngleLoc; 488c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 489a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// \brief The source location of the right angle bracket ('>'); 490a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor SourceLocation RAngleLoc; 491c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 492a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// \brief The number of template arguments in TemplateArgs. 493a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// The actual template arguments (if any) are stored after the 494a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// ExplicitTemplateArgumentList structure. 495a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor unsigned NumTemplateArgs; 496c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 497a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// \brief Retrieve the template arguments 498833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall TemplateArgumentLoc *getTemplateArgs() { 499833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall return reinterpret_cast<TemplateArgumentLoc *> (this + 1); 500a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor } 501c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 502a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// \brief Retrieve the template arguments 503833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall const TemplateArgumentLoc *getTemplateArgs() const { 504833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall return reinterpret_cast<const TemplateArgumentLoc *> (this + 1); 505a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor } 506d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall 507d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall void initializeFrom(const TemplateArgumentListInfo &List); 508d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall void copyInto(TemplateArgumentListInfo &List) const; 5098dfbd8b252ba4e6cf4b7a3422f6ef0ca21312dfeArgyrios Kyrtzidis static std::size_t sizeFor(unsigned NumTemplateArgs); 510d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall static std::size_t sizeFor(const TemplateArgumentListInfo &List); 511a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor}; 512c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 5135f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// DeclRefExpr - [C99 6.5.1p2] - A reference to a declared variable, function, 5145f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// enum, etc. 5155f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass DeclRefExpr : public Expr { 516a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor enum { 517c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt // Flag on DecoratedD that specifies when this declaration reference 518a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor // expression has a C++ nested-name-specifier. 519a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor HasQualifierFlag = 0x01, 520c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt // Flag on DecoratedD that specifies when this declaration reference 521a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor // expression has an explicit C++ template argument list. 522a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor HasExplicitTemplateArgumentListFlag = 0x02 523a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor }; 524c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 525c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt // DecoratedD - The declaration that we are referencing, plus two bits to 526a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor // indicate whether (1) the declaration's name was explicitly qualified and 527c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt // (2) the declaration's name was followed by an explicit template 528a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor // argument list. 529dbd872f273a8dbf22e089b3def6c09f0a460965dJohn McCall llvm::PointerIntPair<ValueDecl *, 2> DecoratedD; 5302577743c5650c646fb705df01403707e94f2df04Abramo Bagnara 531a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor // Loc - The location of the declaration name itself. 5325f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation Loc; 5339e922b1663ecb95dc7eee03002fd66ed18fb3192Argyrios Kyrtzidis 5342577743c5650c646fb705df01403707e94f2df04Abramo Bagnara /// DNLoc - Provides source/type location info for the 5352577743c5650c646fb705df01403707e94f2df04Abramo Bagnara /// declaration name embedded in DecoratedD. 5362577743c5650c646fb705df01403707e94f2df04Abramo Bagnara DeclarationNameLoc DNLoc; 5372577743c5650c646fb705df01403707e94f2df04Abramo Bagnara 538a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// \brief Retrieve the qualifier that preceded the declaration name, if any. 539a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor NameQualifier *getNameQualifier() { 5402cf719c3c3d805f630dfc6b1255e52647820888eSebastian Redl if ((DecoratedD.getInt() & HasQualifierFlag) == 0) 541a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor return 0; 542c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 543a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor return reinterpret_cast<NameQualifier *> (this + 1); 544a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor } 545c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 546a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// \brief Retrieve the qualifier that preceded the member name, if any. 547a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor const NameQualifier *getNameQualifier() const { 548a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor return const_cast<DeclRefExpr *>(this)->getNameQualifier(); 549a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor } 550096832c5ed5b9106fa177ebc148489760c3bc496John McCall 551a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor DeclRefExpr(NestedNameSpecifier *Qualifier, SourceRange QualifierRange, 552dbd872f273a8dbf22e089b3def6c09f0a460965dJohn McCall ValueDecl *D, SourceLocation NameLoc, 553d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall const TemplateArgumentListInfo *TemplateArgs, 5540da76df9218d7c27b471b0a4d83a5b29fe24e5b4Douglas Gregor QualType T); 555663e380d7b2de2bbf20e886e05371195bea9adc4Argyrios Kyrtzidis 5562577743c5650c646fb705df01403707e94f2df04Abramo Bagnara DeclRefExpr(NestedNameSpecifier *Qualifier, SourceRange QualifierRange, 5572577743c5650c646fb705df01403707e94f2df04Abramo Bagnara ValueDecl *D, const DeclarationNameInfo &NameInfo, 5582577743c5650c646fb705df01403707e94f2df04Abramo Bagnara const TemplateArgumentListInfo *TemplateArgs, 5592577743c5650c646fb705df01403707e94f2df04Abramo Bagnara QualType T); 5602577743c5650c646fb705df01403707e94f2df04Abramo Bagnara 561663e380d7b2de2bbf20e886e05371195bea9adc4Argyrios Kyrtzidis /// \brief Construct an empty declaration reference expression. 562663e380d7b2de2bbf20e886e05371195bea9adc4Argyrios Kyrtzidis explicit DeclRefExpr(EmptyShell Empty) 563663e380d7b2de2bbf20e886e05371195bea9adc4Argyrios Kyrtzidis : Expr(DeclRefExprClass, Empty) { } 564c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 5650da76df9218d7c27b471b0a4d83a5b29fe24e5b4Douglas Gregor /// \brief Computes the type- and value-dependence flags for this 5660da76df9218d7c27b471b0a4d83a5b29fe24e5b4Douglas Gregor /// declaration reference expression. 5670da76df9218d7c27b471b0a4d83a5b29fe24e5b4Douglas Gregor void computeDependence(); 5689e922b1663ecb95dc7eee03002fd66ed18fb3192Argyrios Kyrtzidis 5695f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 570dbd872f273a8dbf22e089b3def6c09f0a460965dJohn McCall DeclRefExpr(ValueDecl *d, QualType t, SourceLocation l) : 5710da76df9218d7c27b471b0a4d83a5b29fe24e5b4Douglas Gregor Expr(DeclRefExprClass, t, false, false), DecoratedD(d, 0), Loc(l) { 5720da76df9218d7c27b471b0a4d83a5b29fe24e5b4Douglas Gregor computeDependence(); 5730da76df9218d7c27b471b0a4d83a5b29fe24e5b4Douglas Gregor } 5741eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 575a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor static DeclRefExpr *Create(ASTContext &Context, 576a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor NestedNameSpecifier *Qualifier, 577a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor SourceRange QualifierRange, 578dbd872f273a8dbf22e089b3def6c09f0a460965dJohn McCall ValueDecl *D, 579a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor SourceLocation NameLoc, 5800da76df9218d7c27b471b0a4d83a5b29fe24e5b4Douglas Gregor QualType T, 5810da76df9218d7c27b471b0a4d83a5b29fe24e5b4Douglas Gregor const TemplateArgumentListInfo *TemplateArgs = 0); 582663e380d7b2de2bbf20e886e05371195bea9adc4Argyrios Kyrtzidis 5832577743c5650c646fb705df01403707e94f2df04Abramo Bagnara static DeclRefExpr *Create(ASTContext &Context, 5842577743c5650c646fb705df01403707e94f2df04Abramo Bagnara NestedNameSpecifier *Qualifier, 5852577743c5650c646fb705df01403707e94f2df04Abramo Bagnara SourceRange QualifierRange, 5862577743c5650c646fb705df01403707e94f2df04Abramo Bagnara ValueDecl *D, 5872577743c5650c646fb705df01403707e94f2df04Abramo Bagnara const DeclarationNameInfo &NameInfo, 5882577743c5650c646fb705df01403707e94f2df04Abramo Bagnara QualType T, 5892577743c5650c646fb705df01403707e94f2df04Abramo Bagnara const TemplateArgumentListInfo *TemplateArgs = 0); 5902577743c5650c646fb705df01403707e94f2df04Abramo Bagnara 591663e380d7b2de2bbf20e886e05371195bea9adc4Argyrios Kyrtzidis /// \brief Construct an empty declaration reference expression. 592663e380d7b2de2bbf20e886e05371195bea9adc4Argyrios Kyrtzidis static DeclRefExpr *CreateEmpty(ASTContext &Context, 593663e380d7b2de2bbf20e886e05371195bea9adc4Argyrios Kyrtzidis bool HasQualifier, unsigned NumTemplateArgs); 594c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 595dbd872f273a8dbf22e089b3def6c09f0a460965dJohn McCall ValueDecl *getDecl() { return DecoratedD.getPointer(); } 596dbd872f273a8dbf22e089b3def6c09f0a460965dJohn McCall const ValueDecl *getDecl() const { return DecoratedD.getPointer(); } 597dbd872f273a8dbf22e089b3def6c09f0a460965dJohn McCall void setDecl(ValueDecl *NewD) { DecoratedD.setPointer(NewD); } 598904eed3f6148758d39a2d3c88f3133274460d645Douglas Gregor 5992577743c5650c646fb705df01403707e94f2df04Abramo Bagnara DeclarationNameInfo getNameInfo() const { 6002577743c5650c646fb705df01403707e94f2df04Abramo Bagnara return DeclarationNameInfo(getDecl()->getDeclName(), Loc, DNLoc); 6012577743c5650c646fb705df01403707e94f2df04Abramo Bagnara } 6022577743c5650c646fb705df01403707e94f2df04Abramo Bagnara 6039e922b1663ecb95dc7eee03002fd66ed18fb3192Argyrios Kyrtzidis SourceLocation getLocation() const { return Loc; } 6040b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor void setLocation(SourceLocation L) { Loc = L; } 605a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor virtual SourceRange getSourceRange() const; 6061eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 607a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// \brief Determine whether this declaration reference was preceded by a 608a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// C++ nested-name-specifier, e.g., \c N::foo. 609a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor bool hasQualifier() const { return DecoratedD.getInt() & HasQualifierFlag; } 610c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 611a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// \brief If the name was qualified, retrieves the source range of 612a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// the nested-name-specifier that precedes the name. Otherwise, 613a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// returns an empty source range. 614a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor SourceRange getQualifierRange() const { 615a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor if (!hasQualifier()) 616a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor return SourceRange(); 617c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 618a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor return getNameQualifier()->Range; 619a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor } 620c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 621c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt /// \brief If the name was qualified, retrieves the nested-name-specifier 622a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// that precedes the name. Otherwise, returns NULL. 623a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor NestedNameSpecifier *getQualifier() const { 624a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor if (!hasQualifier()) 625a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor return 0; 626c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 627a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor return getNameQualifier()->NNS; 628a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor } 629c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 630096832c5ed5b9106fa177ebc148489760c3bc496John McCall bool hasExplicitTemplateArgs() const { 631096832c5ed5b9106fa177ebc148489760c3bc496John McCall return (DecoratedD.getInt() & HasExplicitTemplateArgumentListFlag); 632096832c5ed5b9106fa177ebc148489760c3bc496John McCall } 633096832c5ed5b9106fa177ebc148489760c3bc496John McCall 634096832c5ed5b9106fa177ebc148489760c3bc496John McCall /// \brief Retrieve the explicit template argument list that followed the 635096832c5ed5b9106fa177ebc148489760c3bc496John McCall /// member template name. 636096832c5ed5b9106fa177ebc148489760c3bc496John McCall ExplicitTemplateArgumentList &getExplicitTemplateArgs() { 637096832c5ed5b9106fa177ebc148489760c3bc496John McCall assert(hasExplicitTemplateArgs()); 638096832c5ed5b9106fa177ebc148489760c3bc496John McCall 639096832c5ed5b9106fa177ebc148489760c3bc496John McCall if ((DecoratedD.getInt() & HasQualifierFlag) == 0) 640096832c5ed5b9106fa177ebc148489760c3bc496John McCall return *reinterpret_cast<ExplicitTemplateArgumentList *>(this + 1); 641096832c5ed5b9106fa177ebc148489760c3bc496John McCall 642096832c5ed5b9106fa177ebc148489760c3bc496John McCall return *reinterpret_cast<ExplicitTemplateArgumentList *>( 643096832c5ed5b9106fa177ebc148489760c3bc496John McCall getNameQualifier() + 1); 644096832c5ed5b9106fa177ebc148489760c3bc496John McCall } 645096832c5ed5b9106fa177ebc148489760c3bc496John McCall 646096832c5ed5b9106fa177ebc148489760c3bc496John McCall /// \brief Retrieve the explicit template argument list that followed the 647096832c5ed5b9106fa177ebc148489760c3bc496John McCall /// member template name. 648096832c5ed5b9106fa177ebc148489760c3bc496John McCall const ExplicitTemplateArgumentList &getExplicitTemplateArgs() const { 649096832c5ed5b9106fa177ebc148489760c3bc496John McCall return const_cast<DeclRefExpr *>(this)->getExplicitTemplateArgs(); 650a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor } 651d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall 652096832c5ed5b9106fa177ebc148489760c3bc496John McCall /// \brief Retrieves the optional explicit template arguments. 653096832c5ed5b9106fa177ebc148489760c3bc496John McCall /// This points to the same data as getExplicitTemplateArgs(), but 654096832c5ed5b9106fa177ebc148489760c3bc496John McCall /// returns null if there are no explicit template arguments. 655096832c5ed5b9106fa177ebc148489760c3bc496John McCall const ExplicitTemplateArgumentList *getExplicitTemplateArgsOpt() const { 656096832c5ed5b9106fa177ebc148489760c3bc496John McCall if (!hasExplicitTemplateArgs()) return 0; 657096832c5ed5b9106fa177ebc148489760c3bc496John McCall return &getExplicitTemplateArgs(); 658096832c5ed5b9106fa177ebc148489760c3bc496John McCall } 659096832c5ed5b9106fa177ebc148489760c3bc496John McCall 660d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall /// \brief Copies the template arguments (if present) into the given 661d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall /// structure. 662d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall void copyTemplateArgumentsInto(TemplateArgumentListInfo &List) const { 663096832c5ed5b9106fa177ebc148489760c3bc496John McCall if (hasExplicitTemplateArgs()) 664096832c5ed5b9106fa177ebc148489760c3bc496John McCall getExplicitTemplateArgs().copyInto(List); 665d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall } 666c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 667a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// \brief Retrieve the location of the left angle bracket following the 668a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// member name ('<'), if any. 669a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor SourceLocation getLAngleLoc() const { 670096832c5ed5b9106fa177ebc148489760c3bc496John McCall if (!hasExplicitTemplateArgs()) 671a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor return SourceLocation(); 672c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 673096832c5ed5b9106fa177ebc148489760c3bc496John McCall return getExplicitTemplateArgs().LAngleLoc; 674a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor } 675c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 676a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// \brief Retrieve the template arguments provided as part of this 677a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// template-id. 678833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall const TemplateArgumentLoc *getTemplateArgs() const { 679096832c5ed5b9106fa177ebc148489760c3bc496John McCall if (!hasExplicitTemplateArgs()) 680a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor return 0; 681c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 682096832c5ed5b9106fa177ebc148489760c3bc496John McCall return getExplicitTemplateArgs().getTemplateArgs(); 683a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor } 684c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 685a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// \brief Retrieve the number of template arguments provided as part of this 686a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// template-id. 687a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor unsigned getNumTemplateArgs() const { 688096832c5ed5b9106fa177ebc148489760c3bc496John McCall if (!hasExplicitTemplateArgs()) 689a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor return 0; 690c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 691096832c5ed5b9106fa177ebc148489760c3bc496John McCall return getExplicitTemplateArgs().NumTemplateArgs; 692a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor } 693c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 694a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// \brief Retrieve the location of the right angle bracket following the 695a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// template arguments ('>'). 696a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor SourceLocation getRAngleLoc() const { 697096832c5ed5b9106fa177ebc148489760c3bc496John McCall if (!hasExplicitTemplateArgs()) 698a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor return SourceLocation(); 699c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 700096832c5ed5b9106fa177ebc148489760c3bc496John McCall return getExplicitTemplateArgs().RAngleLoc; 701a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor } 702c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 7031eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 70499e9b4d172f6877e6ba5ebe75bb8238721f5e01cDouglas Gregor return T->getStmtClass() == DeclRefExprClass; 7055f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 7065f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const DeclRefExpr *) { return true; } 7071eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 70877ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek // Iterators 70977ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_begin(); 71077ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_end(); 711663e380d7b2de2bbf20e886e05371195bea9adc4Argyrios Kyrtzidis 71260adf4acf40b72227740bf966fb87eebddff3f37Sebastian Redl friend class ASTStmtReader; 7133397c5570369f19b2d6c52e898f708d75ceede1fSebastian Redl friend class ASTStmtWriter; 7145f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 7155f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 716d9f6910f4ef37c0e8eeee2a01287d9572c3176efChris Lattner/// PredefinedExpr - [C99 6.4.2.2] - A predefined identifier such as __func__. 717d9f6910f4ef37c0e8eeee2a01287d9572c3176efChris Lattnerclass PredefinedExpr : public Expr { 718227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlssonpublic: 719227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson enum IdentType { 720227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson Func, 721227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson Function, 722848fa64143fbe5ae62a601ad61277f741e54dfabAnders Carlsson PrettyFunction, 723848fa64143fbe5ae62a601ad61277f741e54dfabAnders Carlsson /// PrettyFunctionNoVirtual - The same as PrettyFunction, except that the 724848fa64143fbe5ae62a601ad61277f741e54dfabAnders Carlsson /// 'virtual' keyword is omitted for virtual member functions. 725848fa64143fbe5ae62a601ad61277f741e54dfabAnders Carlsson PrettyFunctionNoVirtual 726227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson }; 7271eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 728227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlssonprivate: 729227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson SourceLocation Loc; 730227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson IdentType Type; 731227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlssonpublic: 7321eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump PredefinedExpr(SourceLocation l, QualType type, IdentType IT) 733c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt : Expr(PredefinedExprClass, type, type->isDependentType(), 734773f3973cf5e2b6b8788e895967dcb3c1e6ffe79Anders Carlsson type->isDependentType()), Loc(l), Type(IT) {} 7351eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 73617fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor /// \brief Construct an empty predefined expression. 7371eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump explicit PredefinedExpr(EmptyShell Empty) 73817fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor : Expr(PredefinedExprClass, Empty) { } 73917fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor 740227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson IdentType getIdentType() const { return Type; } 74117fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor void setIdentType(IdentType IT) { Type = IT; } 74217fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor 74317fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor SourceLocation getLocation() const { return Loc; } 74417fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor void setLocation(SourceLocation L) { Loc = L; } 74517fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor 746848fa64143fbe5ae62a601ad61277f741e54dfabAnders Carlsson static std::string ComputeName(IdentType IT, const Decl *CurrentDecl); 7473a082d81006e7a2e01a6e431a22e21c78490ff8fAnders Carlsson 748227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson virtual SourceRange getSourceRange() const { return SourceRange(Loc); } 749227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson 7501eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 7511eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == PredefinedExprClass; 752227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson } 753d9f6910f4ef37c0e8eeee2a01287d9572c3176efChris Lattner static bool classof(const PredefinedExpr *) { return true; } 7541eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 75577ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek // Iterators 75677ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_begin(); 75777ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_end(); 758227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson}; 759227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson 7605f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass IntegerLiteral : public Expr { 7615f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer llvm::APInt Value; 7625f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation Loc; 7635f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 7641eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // type should be IntTy, LongTy, LongLongTy, UnsignedIntTy, UnsignedLongTy, 7655f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // or UnsignedLongLongTy 7665f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer IntegerLiteral(const llvm::APInt &V, QualType type, SourceLocation l) 7672333f7727f97018d6742e1e0938133bcfad967abEli Friedman : Expr(IntegerLiteralClass, type, false, false), Value(V), Loc(l) { 7685f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer assert(type->isIntegerType() && "Illegal type in IntegerLiteral"); 7695f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 770a135fb43eb94524a6529768596a4533eed9aa70dAnders Carlsson 7710b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor /// \brief Construct an empty integer literal. 7721eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump explicit IntegerLiteral(EmptyShell Empty) 7730b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor : Expr(IntegerLiteralClass, Empty) { } 7740b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor 7755f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer const llvm::APInt &getValue() const { return Value; } 7765f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer virtual SourceRange getSourceRange() const { return SourceRange(Loc); } 7775f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 778313a81dd820c9b2c0203bdcd974c781a81e4f0cfDouglas Gregor /// \brief Retrieve the location of the literal. 779313a81dd820c9b2c0203bdcd974c781a81e4f0cfDouglas Gregor SourceLocation getLocation() const { return Loc; } 780313a81dd820c9b2c0203bdcd974c781a81e4f0cfDouglas Gregor 7810b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor void setValue(const llvm::APInt &Val) { Value = Val; } 7820b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor void setLocation(SourceLocation Location) { Loc = Location; } 7830b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor 7841eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 7851eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == IntegerLiteralClass; 7865f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 7875f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const IntegerLiteral *) { return true; } 7881eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 78977ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek // Iterators 79077ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_begin(); 79177ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_end(); 7925f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 7935f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 7945f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass CharacterLiteral : public Expr { 7955f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer unsigned Value; 7965f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation Loc; 797c250aae4f645833aed3a6321bc8598f7330dce8dChris Lattner bool IsWide; 7985f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 7995f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // type should be IntTy 800c250aae4f645833aed3a6321bc8598f7330dce8dChris Lattner CharacterLiteral(unsigned value, bool iswide, QualType type, SourceLocation l) 8012333f7727f97018d6742e1e0938133bcfad967abEli Friedman : Expr(CharacterLiteralClass, type, false, false), Value(value), Loc(l), 8022333f7727f97018d6742e1e0938133bcfad967abEli Friedman IsWide(iswide) { 8035f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 8040b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor 8050b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor /// \brief Construct an empty character literal. 8060b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor CharacterLiteral(EmptyShell Empty) : Expr(CharacterLiteralClass, Empty) { } 8070b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor 808018d8e0596dd57401eeddcf11ac84ff0a065fbbeChris Lattner SourceLocation getLocation() const { return Loc; } 809c250aae4f645833aed3a6321bc8598f7330dce8dChris Lattner bool isWide() const { return IsWide; } 8101eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 8115f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer virtual SourceRange getSourceRange() const { return SourceRange(Loc); } 8121eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 8135f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer unsigned getValue() const { return Value; } 8145f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 8150b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor void setLocation(SourceLocation Location) { Loc = Location; } 8160b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor void setWide(bool W) { IsWide = W; } 8170b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor void setValue(unsigned Val) { Value = Val; } 8180b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor 8191eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 8201eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == CharacterLiteralClass; 8215f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 8225f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const CharacterLiteral *) { return true; } 82377ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek 82477ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek // Iterators 82577ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_begin(); 82677ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_end(); 8275f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 8285f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 8295f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass FloatingLiteral : public Expr { 830525a05093a4816af961fe2bc6b8a81c17e2e26c2Chris Lattner llvm::APFloat Value; 831720c4ec57b6110873cd533ad434853a27e7c3f4aTed Kremenek bool IsExact : 1; 8325f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation Loc; 8335f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 8341eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump FloatingLiteral(const llvm::APFloat &V, bool isexact, 835720c4ec57b6110873cd533ad434853a27e7c3f4aTed Kremenek QualType Type, SourceLocation L) 8362333f7727f97018d6742e1e0938133bcfad967abEli Friedman : Expr(FloatingLiteralClass, Type, false, false), Value(V), 8372333f7727f97018d6742e1e0938133bcfad967abEli Friedman IsExact(isexact), Loc(L) {} 8385f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 83917fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor /// \brief Construct an empty floating-point literal. 8401eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump explicit FloatingLiteral(EmptyShell Empty) 84117fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor : Expr(FloatingLiteralClass, Empty), Value(0.0) { } 84217fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor 843c9bec4bfea9090a08dd83a7b213f0c8adf8d78ecChris Lattner const llvm::APFloat &getValue() const { return Value; } 84417fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor void setValue(const llvm::APFloat &Val) { Value = Val; } 84517fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor 846720c4ec57b6110873cd533ad434853a27e7c3f4aTed Kremenek bool isExact() const { return IsExact; } 84717fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor void setExact(bool E) { IsExact = E; } 848c9bec4bfea9090a08dd83a7b213f0c8adf8d78ecChris Lattner 849da8249e57f3badecf925571881fe57243935c6c1Chris Lattner /// getValueAsApproximateDouble - This returns the value as an inaccurate 850da8249e57f3badecf925571881fe57243935c6c1Chris Lattner /// double. Note that this may cause loss of precision, but is useful for 851da8249e57f3badecf925571881fe57243935c6c1Chris Lattner /// debugging dumps, etc. 852da8249e57f3badecf925571881fe57243935c6c1Chris Lattner double getValueAsApproximateDouble() const; 8531eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 85417fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor SourceLocation getLocation() const { return Loc; } 85517fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor void setLocation(SourceLocation L) { Loc = L; } 85617fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor 8575f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer virtual SourceRange getSourceRange() const { return SourceRange(Loc); } 8585f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 8591eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 8601eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == FloatingLiteralClass; 8615f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 8625f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const FloatingLiteral *) { return true; } 8631eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 86477ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek // Iterators 86577ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_begin(); 86677ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_end(); 8675f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 8685f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 8695d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner/// ImaginaryLiteral - We support imaginary integer and floating point literals, 8705d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner/// like "1.0i". We represent these as a wrapper around FloatingLiteral and 8715d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner/// IntegerLiteral classes. Instances of this class always have a Complex type 8725d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner/// whose element type matches the subexpression. 8735d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner/// 8745d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattnerclass ImaginaryLiteral : public Expr { 8755549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Stmt *Val; 8765d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattnerpublic: 8775d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner ImaginaryLiteral(Expr *val, QualType Ty) 8782333f7727f97018d6742e1e0938133bcfad967abEli Friedman : Expr(ImaginaryLiteralClass, Ty, false, false), Val(val) {} 8791eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 880cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor /// \brief Build an empty imaginary literal. 8811eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump explicit ImaginaryLiteral(EmptyShell Empty) 882cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor : Expr(ImaginaryLiteralClass, Empty) { } 883cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor 8845549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek const Expr *getSubExpr() const { return cast<Expr>(Val); } 8855549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getSubExpr() { return cast<Expr>(Val); } 886cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor void setSubExpr(Expr *E) { Val = E; } 887cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor 8885d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner virtual SourceRange getSourceRange() const { return Val->getSourceRange(); } 8891eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 8901eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == ImaginaryLiteralClass; 8915d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner } 8925d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner static bool classof(const ImaginaryLiteral *) { return true; } 8931eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 8945d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner // Iterators 8955d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner virtual child_iterator child_begin(); 8965d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner virtual child_iterator child_end(); 8975d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner}; 8985d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner 899e6a82b2c29ad05534841e5f8fd033fb17b6f61e2Ted Kremenek/// StringLiteral - This represents a string literal expression, e.g. "foo" 900e6a82b2c29ad05534841e5f8fd033fb17b6f61e2Ted Kremenek/// or L"bar" (wide strings). The actual string is returned by getStrData() 901e6a82b2c29ad05534841e5f8fd033fb17b6f61e2Ted Kremenek/// is NOT null-terminated, and the length of the string is determined by 902a7ad98ff0919d6a24ea7c46634ea29bea551c1a0Chris Lattner/// calling getByteLength(). The C type for a string is always a 903c4a09c189981b4561428e4b56fd250718e2717bbChris Lattner/// ConstantArrayType. In C++, the char type is const qualified, in C it is 904c4a09c189981b4561428e4b56fd250718e2717bbChris Lattner/// not. 905690398188ea5b428f06aa13c7d4ce6eb741ad4f9Chris Lattner/// 906690398188ea5b428f06aa13c7d4ce6eb741ad4f9Chris Lattner/// Note that strings in C can be formed by concatenation of multiple string 9078bea7c0ee44c71c817de7dc2be932b73bec90c9fChris Lattner/// literal pptokens in translation phase #6. This keeps track of the locations 908690398188ea5b428f06aa13c7d4ce6eb741ad4f9Chris Lattner/// of each of these pieces. 909c4a09c189981b4561428e4b56fd250718e2717bbChris Lattner/// 910c4a09c189981b4561428e4b56fd250718e2717bbChris Lattner/// Strings in C can also be truncated and extended by assigning into arrays, 911c4a09c189981b4561428e4b56fd250718e2717bbChris Lattner/// e.g. with constructs like: 912c4a09c189981b4561428e4b56fd250718e2717bbChris Lattner/// char X[2] = "foobar"; 913c4a09c189981b4561428e4b56fd250718e2717bbChris Lattner/// In this case, getByteLength() will return 6, but the string literal will 914c4a09c189981b4561428e4b56fd250718e2717bbChris Lattner/// have type "char[2]". 9155f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass StringLiteral : public Expr { 9165f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer const char *StrData; 9175f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer unsigned ByteLength; 9185f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool IsWide; 919726e168dc09fb23f53c7b004f8e919421ee91806Chris Lattner unsigned NumConcatenated; 920726e168dc09fb23f53c7b004f8e919421ee91806Chris Lattner SourceLocation TokLocs[1]; 9212085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner 9222333f7727f97018d6742e1e0938133bcfad967abEli Friedman StringLiteral(QualType Ty) : Expr(StringLiteralClass, Ty, false, false) {} 9231eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 9245f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 9252085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner /// This is the "fully general" constructor that allows representation of 9262085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner /// strings formed from multiple concatenated tokens. 9272085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner static StringLiteral *Create(ASTContext &C, const char *StrData, 9282085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner unsigned ByteLength, bool Wide, QualType Ty, 929a135fb43eb94524a6529768596a4533eed9aa70dAnders Carlsson const SourceLocation *Loc, unsigned NumStrs); 9302085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner 9312085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner /// Simple constructor for string literals made from one token. 9321eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static StringLiteral *Create(ASTContext &C, const char *StrData, 9332085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner unsigned ByteLength, 9342085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner bool Wide, QualType Ty, SourceLocation Loc) { 9352085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner return Create(C, StrData, ByteLength, Wide, Ty, &Loc, 1); 9362085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner } 937a135fb43eb94524a6529768596a4533eed9aa70dAnders Carlsson 938673ecd6a4a9f7c12fb6f76f84f654dbdcdc89e76Douglas Gregor /// \brief Construct an empty string literal. 939673ecd6a4a9f7c12fb6f76f84f654dbdcdc89e76Douglas Gregor static StringLiteral *CreateEmpty(ASTContext &C, unsigned NumStrs); 940673ecd6a4a9f7c12fb6f76f84f654dbdcdc89e76Douglas Gregor 941b648023da23e8b227cdda57a241db4c6f368726bDaniel Dunbar llvm::StringRef getString() const { 942b648023da23e8b227cdda57a241db4c6f368726bDaniel Dunbar return llvm::StringRef(StrData, ByteLength); 943b648023da23e8b227cdda57a241db4c6f368726bDaniel Dunbar } 9442f4eaef37476ae6891ede8ba215d0f6fd093629bBenjamin Kramer 9455f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer unsigned getByteLength() const { return ByteLength; } 946673ecd6a4a9f7c12fb6f76f84f654dbdcdc89e76Douglas Gregor 947673ecd6a4a9f7c12fb6f76f84f654dbdcdc89e76Douglas Gregor /// \brief Sets the string data to the given string data. 948b648023da23e8b227cdda57a241db4c6f368726bDaniel Dunbar void setString(ASTContext &C, llvm::StringRef Str); 949673ecd6a4a9f7c12fb6f76f84f654dbdcdc89e76Douglas Gregor 9505f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool isWide() const { return IsWide; } 951673ecd6a4a9f7c12fb6f76f84f654dbdcdc89e76Douglas Gregor void setWide(bool W) { IsWide = W; } 952673ecd6a4a9f7c12fb6f76f84f654dbdcdc89e76Douglas Gregor 9538d4141f83d9de379547cf05bd75d4c6cf894b189Steve Naroff bool containsNonAsciiOrNull() const { 954b648023da23e8b227cdda57a241db4c6f368726bDaniel Dunbar llvm::StringRef Str = getString(); 955b648023da23e8b227cdda57a241db4c6f368726bDaniel Dunbar for (unsigned i = 0, e = Str.size(); i != e; ++i) 956b648023da23e8b227cdda57a241db4c6f368726bDaniel Dunbar if (!isascii(Str[i]) || !Str[i]) 95733fdb738a6c125f4c788733897021b7c1a062b0cSteve Naroff return true; 95833fdb738a6c125f4c788733897021b7c1a062b0cSteve Naroff return false; 95933fdb738a6c125f4c788733897021b7c1a062b0cSteve Naroff } 960726e168dc09fb23f53c7b004f8e919421ee91806Chris Lattner /// getNumConcatenated - Get the number of string literal tokens that were 961726e168dc09fb23f53c7b004f8e919421ee91806Chris Lattner /// concatenated in translation phase #6 to form this string literal. 962726e168dc09fb23f53c7b004f8e919421ee91806Chris Lattner unsigned getNumConcatenated() const { return NumConcatenated; } 9631eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 964726e168dc09fb23f53c7b004f8e919421ee91806Chris Lattner SourceLocation getStrTokenLoc(unsigned TokNum) const { 965726e168dc09fb23f53c7b004f8e919421ee91806Chris Lattner assert(TokNum < NumConcatenated && "Invalid tok number"); 966726e168dc09fb23f53c7b004f8e919421ee91806Chris Lattner return TokLocs[TokNum]; 967726e168dc09fb23f53c7b004f8e919421ee91806Chris Lattner } 9681eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump void setStrTokenLoc(unsigned TokNum, SourceLocation L) { 969673ecd6a4a9f7c12fb6f76f84f654dbdcdc89e76Douglas Gregor assert(TokNum < NumConcatenated && "Invalid tok number"); 970673ecd6a4a9f7c12fb6f76f84f654dbdcdc89e76Douglas Gregor TokLocs[TokNum] = L; 971673ecd6a4a9f7c12fb6f76f84f654dbdcdc89e76Douglas Gregor } 972673ecd6a4a9f7c12fb6f76f84f654dbdcdc89e76Douglas Gregor 973b137299ce5bb6c36fbba651858600857fda4dd50Chris Lattner typedef const SourceLocation *tokloc_iterator; 974b137299ce5bb6c36fbba651858600857fda4dd50Chris Lattner tokloc_iterator tokloc_begin() const { return TokLocs; } 975b137299ce5bb6c36fbba651858600857fda4dd50Chris Lattner tokloc_iterator tokloc_end() const { return TokLocs+NumConcatenated; } 9765f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 9771eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump virtual SourceRange getSourceRange() const { 9781eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return SourceRange(TokLocs[0], TokLocs[NumConcatenated-1]); 9795f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 9801eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 9811eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == StringLiteralClass; 9825f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 9835f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const StringLiteral *) { return true; } 9841eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 98577ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek // Iterators 98677ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_begin(); 98777ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_end(); 9885f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 9895f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 9905f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// ParenExpr - This represents a parethesized expression, e.g. "(1)". This 9915f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// AST node is only formed if full location information is requested. 9925f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass ParenExpr : public Expr { 9935f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation L, R; 9945549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Stmt *Val; 9955f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 9965f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ParenExpr(SourceLocation l, SourceLocation r, Expr *val) 997898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor : Expr(ParenExprClass, val->getType(), 9981eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump val->isTypeDependent(), val->isValueDependent()), 999898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor L(l), R(r), Val(val) {} 10001eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1001c04db4feefa2b0dbbc6876cb4eeeee108aa6791dDouglas Gregor /// \brief Construct an empty parenthesized expression. 10021eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump explicit ParenExpr(EmptyShell Empty) 1003c04db4feefa2b0dbbc6876cb4eeeee108aa6791dDouglas Gregor : Expr(ParenExprClass, Empty) { } 1004c04db4feefa2b0dbbc6876cb4eeeee108aa6791dDouglas Gregor 10055549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek const Expr *getSubExpr() const { return cast<Expr>(Val); } 10065549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getSubExpr() { return cast<Expr>(Val); } 1007c04db4feefa2b0dbbc6876cb4eeeee108aa6791dDouglas Gregor void setSubExpr(Expr *E) { Val = E; } 1008c04db4feefa2b0dbbc6876cb4eeeee108aa6791dDouglas Gregor 1009866b5c03e3b9c01cf496ad97b85a05afc917345bTed Kremenek virtual SourceRange getSourceRange() const { return SourceRange(L, R); } 10105f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1011313a81dd820c9b2c0203bdcd974c781a81e4f0cfDouglas Gregor /// \brief Get the location of the left parentheses '('. 1012313a81dd820c9b2c0203bdcd974c781a81e4f0cfDouglas Gregor SourceLocation getLParen() const { return L; } 1013c04db4feefa2b0dbbc6876cb4eeeee108aa6791dDouglas Gregor void setLParen(SourceLocation Loc) { L = Loc; } 1014313a81dd820c9b2c0203bdcd974c781a81e4f0cfDouglas Gregor 1015313a81dd820c9b2c0203bdcd974c781a81e4f0cfDouglas Gregor /// \brief Get the location of the right parentheses ')'. 1016313a81dd820c9b2c0203bdcd974c781a81e4f0cfDouglas Gregor SourceLocation getRParen() const { return R; } 1017c04db4feefa2b0dbbc6876cb4eeeee108aa6791dDouglas Gregor void setRParen(SourceLocation Loc) { R = Loc; } 1018313a81dd820c9b2c0203bdcd974c781a81e4f0cfDouglas Gregor 10191eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 10201eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == ParenExprClass; 10215f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 10225f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const ParenExpr *) { return true; } 10231eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 102477ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek // Iterators 102577ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_begin(); 102677ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_end(); 10275f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 10285f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 10295f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 10300518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl/// UnaryOperator - This represents the unary-expression's (except sizeof and 10310518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl/// alignof), the postinc/postdec operators from postfix-expression, and various 10325f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// extensions. 1033dbb36971c68ea944ac4b1fbe2d97fe7cca3b20acChris Lattner/// 1034dbb36971c68ea944ac4b1fbe2d97fe7cca3b20acChris Lattner/// Notes on various nodes: 1035dbb36971c68ea944ac4b1fbe2d97fe7cca3b20acChris Lattner/// 1036dbb36971c68ea944ac4b1fbe2d97fe7cca3b20acChris Lattner/// Real/Imag - These return the real/imag part of a complex operand. If 1037dbb36971c68ea944ac4b1fbe2d97fe7cca3b20acChris Lattner/// applied to a non-complex value, the former returns its operand and the 1038dbb36971c68ea944ac4b1fbe2d97fe7cca3b20acChris Lattner/// later returns zero in the type of the operand. 1039dbb36971c68ea944ac4b1fbe2d97fe7cca3b20acChris Lattner/// 10405f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass UnaryOperator : public Expr { 10415f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 10425baba9d98364a3525d6afa15a04cdad82fd6dd30John McCall typedef UnaryOperatorKind Opcode; 10435baba9d98364a3525d6afa15a04cdad82fd6dd30John McCall 10445f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerprivate: 10450799c53fc2bb7acf937c8a8e165033dba1a5aba3John McCall unsigned Opc : 5; 10465f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation Loc; 10470799c53fc2bb7acf937c8a8e165033dba1a5aba3John McCall Stmt *Val; 10481eb4433ac451dc16f4133a88af2d002ac26c58efMike Stumppublic: 10495f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 10505f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer UnaryOperator(Expr *input, Opcode opc, QualType type, SourceLocation l) 10519103bb27f4eefa0e0d7935387750e3aca24abc49Douglas Gregor : Expr(UnaryOperatorClass, type, 1052de7e66256b1bdfcf6526994825a8c8fced52a31cEli Friedman input->isTypeDependent() || type->isDependentType(), 10531eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump input->isValueDependent()), 10540799c53fc2bb7acf937c8a8e165033dba1a5aba3John McCall Opc(opc), Loc(l), Val(input) {} 10555f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 10560b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor /// \brief Build an empty unary operator. 10571eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump explicit UnaryOperator(EmptyShell Empty) 10582de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall : Expr(UnaryOperatorClass, Empty), Opc(UO_AddrOf) { } 10590b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor 10600799c53fc2bb7acf937c8a8e165033dba1a5aba3John McCall Opcode getOpcode() const { return static_cast<Opcode>(Opc); } 10610b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor void setOpcode(Opcode O) { Opc = O; } 10620b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor 10635549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getSubExpr() const { return cast<Expr>(Val); } 10640b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor void setSubExpr(Expr *E) { Val = E; } 10650b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor 10665f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// getOperatorLoc - Return the location of the operator. 10675f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation getOperatorLoc() const { return Loc; } 10680b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor void setOperatorLoc(SourceLocation L) { Loc = L; } 10690b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor 10705f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// isPostfix - Return true if this is a postfix operation, like x++. 10712085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner static bool isPostfix(Opcode Op) { 10722de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall return Op == UO_PostInc || Op == UO_PostDec; 10732085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner } 10745f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 10755a56ac30d04e8f0431a08980885662a47a6308aaTed Kremenek /// isPostfix - Return true if this is a prefix operation, like --x. 10762085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner static bool isPrefix(Opcode Op) { 10772de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall return Op == UO_PreInc || Op == UO_PreDec; 10782085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner } 10795a56ac30d04e8f0431a08980885662a47a6308aaTed Kremenek 10800799c53fc2bb7acf937c8a8e165033dba1a5aba3John McCall bool isPrefix() const { return isPrefix(getOpcode()); } 10810799c53fc2bb7acf937c8a8e165033dba1a5aba3John McCall bool isPostfix() const { return isPostfix(getOpcode()); } 10822de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall bool isIncrementOp() const { 1083993cdca0fed7deb646e4654dfb2607227a497faaBenjamin Kramer return Opc == UO_PreInc || Opc == UO_PostInc; 10842de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall } 10852de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall bool isIncrementDecrementOp() const { 1086993cdca0fed7deb646e4654dfb2607227a497faaBenjamin Kramer return Opc <= UO_PreDec; 10872de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall } 10882de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall static bool isArithmeticOp(Opcode Op) { 10892de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall return Op >= UO_Plus && Op <= UO_LNot; 10902de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall } 10910799c53fc2bb7acf937c8a8e165033dba1a5aba3John McCall bool isArithmeticOp() const { return isArithmeticOp(getOpcode()); } 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 16415f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 1642f595cc41c4d95fe323f8a2b209523de9956f874dEli Friedman MemberExpr(Expr *base, bool isarrow, ValueDecl *memberdecl, 16432577743c5650c646fb705df01403707e94f2df04Abramo Bagnara const DeclarationNameInfo &NameInfo, QualType ty) 16442577743c5650c646fb705df01403707e94f2df04Abramo Bagnara : Expr(MemberExprClass, ty, 16452577743c5650c646fb705df01403707e94f2df04Abramo Bagnara base->isTypeDependent(), base->isValueDependent()), 16462577743c5650c646fb705df01403707e94f2df04Abramo Bagnara Base(base), MemberDecl(memberdecl), MemberLoc(NameInfo.getLoc()), 16472577743c5650c646fb705df01403707e94f2df04Abramo Bagnara MemberDNLoc(NameInfo.getInfo()), IsArrow(isarrow), 16482577743c5650c646fb705df01403707e94f2df04Abramo Bagnara HasQualifierOrFoundDecl(false), HasExplicitTemplateArgumentList(false) { 16492577743c5650c646fb705df01403707e94f2df04Abramo Bagnara assert(memberdecl->getDeclName() == NameInfo.getName()); 16502577743c5650c646fb705df01403707e94f2df04Abramo Bagnara } 16512577743c5650c646fb705df01403707e94f2df04Abramo Bagnara 16522577743c5650c646fb705df01403707e94f2df04Abramo Bagnara // NOTE: this constructor should be used only when it is known that 16532577743c5650c646fb705df01403707e94f2df04Abramo Bagnara // the member name can not provide additional syntactic info 16542577743c5650c646fb705df01403707e94f2df04Abramo Bagnara // (i.e., source locations for C++ operator names or type source info 16552577743c5650c646fb705df01403707e94f2df04Abramo Bagnara // for constructors, destructors and conversion oeprators). 16562577743c5650c646fb705df01403707e94f2df04Abramo Bagnara MemberExpr(Expr *base, bool isarrow, ValueDecl *memberdecl, 1657f595cc41c4d95fe323f8a2b209523de9956f874dEli Friedman SourceLocation l, QualType ty) 16581eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump : Expr(MemberExprClass, ty, 1659ffce2df6ae280d354d51371282a579df1eb86876Anders Carlsson base->isTypeDependent(), base->isValueDependent()), 16602577743c5650c646fb705df01403707e94f2df04Abramo Bagnara Base(base), MemberDecl(memberdecl), MemberLoc(l), MemberDNLoc(), 16612577743c5650c646fb705df01403707e94f2df04Abramo Bagnara IsArrow(isarrow), 16626bb8017bb9e828d118e15e59d71c66bba323c364John McCall HasQualifierOrFoundDecl(false), HasExplicitTemplateArgumentList(false) {} 1663510190777c4bd53e960eea4665b204778fec1b64Eli Friedman 16641eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static MemberExpr *Create(ASTContext &C, Expr *base, bool isarrow, 166583f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor NestedNameSpecifier *qual, SourceRange qualrange, 1666161755a09898c95d21bfff33707da9ca41cd53c5John McCall ValueDecl *memberdecl, DeclAccessPair founddecl, 16672577743c5650c646fb705df01403707e94f2df04Abramo Bagnara DeclarationNameInfo MemberNameInfo, 1668d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall const TemplateArgumentListInfo *targs, 1669c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor QualType ty); 16701eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 167188a3514f36de96b19cdf50141c640df1a5f13f6cDouglas Gregor void setBase(Expr *E) { Base = E; } 16725549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getBase() const { return cast<Expr>(Base); } 167357e8b05fe9ba03d410db9c161e032cb79c9ab5baDouglas Gregor 167457e8b05fe9ba03d410db9c161e032cb79c9ab5baDouglas Gregor /// \brief Retrieve the member declaration to which this expression refers. 167557e8b05fe9ba03d410db9c161e032cb79c9ab5baDouglas Gregor /// 167657e8b05fe9ba03d410db9c161e032cb79c9ab5baDouglas Gregor /// The returned declaration will either be a FieldDecl or (in C++) 167757e8b05fe9ba03d410db9c161e032cb79c9ab5baDouglas Gregor /// a CXXMethodDecl. 1678f595cc41c4d95fe323f8a2b209523de9956f874dEli Friedman ValueDecl *getMemberDecl() const { return MemberDecl; } 1679f595cc41c4d95fe323f8a2b209523de9956f874dEli Friedman void setMemberDecl(ValueDecl *D) { MemberDecl = D; } 16801f0d0133b0e8d1f01f63951ee04927796b34740dDouglas Gregor 16816bb8017bb9e828d118e15e59d71c66bba323c364John McCall /// \brief Retrieves the declaration found by lookup. 1682161755a09898c95d21bfff33707da9ca41cd53c5John McCall DeclAccessPair getFoundDecl() const { 16836bb8017bb9e828d118e15e59d71c66bba323c364John McCall if (!HasQualifierOrFoundDecl) 1684161755a09898c95d21bfff33707da9ca41cd53c5John McCall return DeclAccessPair::make(getMemberDecl(), 1685161755a09898c95d21bfff33707da9ca41cd53c5John McCall getMemberDecl()->getAccess()); 16866bb8017bb9e828d118e15e59d71c66bba323c364John McCall return getMemberQualifier()->FoundDecl; 16876bb8017bb9e828d118e15e59d71c66bba323c364John McCall } 16886bb8017bb9e828d118e15e59d71c66bba323c364John McCall 16891eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /// \brief Determines whether this member expression actually had 16900979c805475d1ba49b5d6ef93c4d2ce6d2eab6edDouglas Gregor /// a C++ nested-name-specifier prior to the name of the member, e.g., 16910979c805475d1ba49b5d6ef93c4d2ce6d2eab6edDouglas Gregor /// x->Base::foo. 16926bb8017bb9e828d118e15e59d71c66bba323c364John McCall bool hasQualifier() const { return getQualifier() != 0; } 16931eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 169483f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor /// \brief If the member name was qualified, retrieves the source range of 169583f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor /// the nested-name-specifier that precedes the member name. Otherwise, 169683f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor /// returns an empty source range. 16971eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump SourceRange getQualifierRange() const { 16986bb8017bb9e828d118e15e59d71c66bba323c364John McCall if (!HasQualifierOrFoundDecl) 169983f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor return SourceRange(); 17001eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 170183f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor return getMemberQualifier()->Range; 170283f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor } 17031eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 17041eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /// \brief If the member name was qualified, retrieves the 170583f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor /// nested-name-specifier that precedes the member name. Otherwise, returns 170683f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor /// NULL. 17071eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump NestedNameSpecifier *getQualifier() const { 17086bb8017bb9e828d118e15e59d71c66bba323c364John McCall if (!HasQualifierOrFoundDecl) 170983f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor return 0; 17101eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 171183f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor return getMemberQualifier()->NNS; 171283f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor } 1713c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor 1714c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor /// \brief Determines whether this member expression actually had a C++ 1715c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor /// template argument list explicitly specified, e.g., x.f<int>. 1716096832c5ed5b9106fa177ebc148489760c3bc496John McCall bool hasExplicitTemplateArgs() const { 17171eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return HasExplicitTemplateArgumentList; 1718c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor } 17191eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1720d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall /// \brief Copies the template arguments (if present) into the given 1721d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall /// structure. 1722d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall void copyTemplateArgumentsInto(TemplateArgumentListInfo &List) const { 1723096832c5ed5b9106fa177ebc148489760c3bc496John McCall if (hasExplicitTemplateArgs()) 1724096832c5ed5b9106fa177ebc148489760c3bc496John McCall getExplicitTemplateArgs().copyInto(List); 1725096832c5ed5b9106fa177ebc148489760c3bc496John McCall } 1726096832c5ed5b9106fa177ebc148489760c3bc496John McCall 1727096832c5ed5b9106fa177ebc148489760c3bc496John McCall /// \brief Retrieve the explicit template argument list that 1728096832c5ed5b9106fa177ebc148489760c3bc496John McCall /// follow the member template name. This must only be called on an 1729096832c5ed5b9106fa177ebc148489760c3bc496John McCall /// expression with explicit template arguments. 1730096832c5ed5b9106fa177ebc148489760c3bc496John McCall ExplicitTemplateArgumentList &getExplicitTemplateArgs() { 1731096832c5ed5b9106fa177ebc148489760c3bc496John McCall assert(HasExplicitTemplateArgumentList); 1732096832c5ed5b9106fa177ebc148489760c3bc496John McCall if (!HasQualifierOrFoundDecl) 1733096832c5ed5b9106fa177ebc148489760c3bc496John McCall return *reinterpret_cast<ExplicitTemplateArgumentList *>(this + 1); 1734096832c5ed5b9106fa177ebc148489760c3bc496John McCall 1735096832c5ed5b9106fa177ebc148489760c3bc496John McCall return *reinterpret_cast<ExplicitTemplateArgumentList *>( 1736096832c5ed5b9106fa177ebc148489760c3bc496John McCall getMemberQualifier() + 1); 1737096832c5ed5b9106fa177ebc148489760c3bc496John McCall } 1738096832c5ed5b9106fa177ebc148489760c3bc496John McCall 1739096832c5ed5b9106fa177ebc148489760c3bc496John McCall /// \brief Retrieve the explicit template argument list that 1740096832c5ed5b9106fa177ebc148489760c3bc496John McCall /// followed the member template name. This must only be called on 1741096832c5ed5b9106fa177ebc148489760c3bc496John McCall /// an expression with explicit template arguments. 1742096832c5ed5b9106fa177ebc148489760c3bc496John McCall const ExplicitTemplateArgumentList &getExplicitTemplateArgs() const { 1743096832c5ed5b9106fa177ebc148489760c3bc496John McCall return const_cast<MemberExpr *>(this)->getExplicitTemplateArgs(); 1744096832c5ed5b9106fa177ebc148489760c3bc496John McCall } 1745096832c5ed5b9106fa177ebc148489760c3bc496John McCall 1746096832c5ed5b9106fa177ebc148489760c3bc496John McCall /// \brief Retrieves the optional explicit template arguments. 1747096832c5ed5b9106fa177ebc148489760c3bc496John McCall /// This points to the same data as getExplicitTemplateArgs(), but 1748096832c5ed5b9106fa177ebc148489760c3bc496John McCall /// returns null if there are no explicit template arguments. 1749096832c5ed5b9106fa177ebc148489760c3bc496John McCall const ExplicitTemplateArgumentList *getOptionalExplicitTemplateArgs() const { 1750096832c5ed5b9106fa177ebc148489760c3bc496John McCall if (!hasExplicitTemplateArgs()) return 0; 1751096832c5ed5b9106fa177ebc148489760c3bc496John McCall return &getExplicitTemplateArgs(); 1752d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall } 1753c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 17541eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /// \brief Retrieve the location of the left angle bracket following the 1755c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor /// member name ('<'), if any. 17561eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump SourceLocation getLAngleLoc() const { 1757c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor if (!HasExplicitTemplateArgumentList) 1758c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor return SourceLocation(); 17591eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1760096832c5ed5b9106fa177ebc148489760c3bc496John McCall return getExplicitTemplateArgs().LAngleLoc; 1761c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor } 17621eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1763c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor /// \brief Retrieve the template arguments provided as part of this 1764c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor /// template-id. 1765833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall const TemplateArgumentLoc *getTemplateArgs() const { 1766c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor if (!HasExplicitTemplateArgumentList) 17671eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return 0; 17681eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1769096832c5ed5b9106fa177ebc148489760c3bc496John McCall return getExplicitTemplateArgs().getTemplateArgs(); 1770c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor } 17711eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1772c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor /// \brief Retrieve the number of template arguments provided as part of this 1773c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor /// template-id. 17741eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump unsigned getNumTemplateArgs() const { 1775c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor if (!HasExplicitTemplateArgumentList) 17761eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return 0; 17771eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1778096832c5ed5b9106fa177ebc148489760c3bc496John McCall return getExplicitTemplateArgs().NumTemplateArgs; 1779c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor } 17801eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 17811eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /// \brief Retrieve the location of the right angle bracket following the 1782c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor /// template arguments ('>'). 17831eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump SourceLocation getRAngleLoc() const { 1784c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor if (!HasExplicitTemplateArgumentList) 1785c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor return SourceLocation(); 17861eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1787096832c5ed5b9106fa177ebc148489760c3bc496John McCall return getExplicitTemplateArgs().RAngleLoc; 1788c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor } 17891eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 17902577743c5650c646fb705df01403707e94f2df04Abramo Bagnara /// \brief Retrieve the member declaration name info. 17912577743c5650c646fb705df01403707e94f2df04Abramo Bagnara DeclarationNameInfo getMemberNameInfo() const { 17922577743c5650c646fb705df01403707e94f2df04Abramo Bagnara return DeclarationNameInfo(MemberDecl->getDeclName(), 17932577743c5650c646fb705df01403707e94f2df04Abramo Bagnara MemberLoc, MemberDNLoc); 17942577743c5650c646fb705df01403707e94f2df04Abramo Bagnara } 17952577743c5650c646fb705df01403707e94f2df04Abramo Bagnara 17965f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool isArrow() const { return IsArrow; } 17971f0d0133b0e8d1f01f63951ee04927796b34740dDouglas Gregor void setArrow(bool A) { IsArrow = A; } 17981f0d0133b0e8d1f01f63951ee04927796b34740dDouglas Gregor 1799ddca44e86281bb7dcf5fdcaf1563434c524e3861Chris Lattner /// getMemberLoc - Return the location of the "member", in X->F, it is the 1800ddca44e86281bb7dcf5fdcaf1563434c524e3861Chris Lattner /// location of 'F'. 1801026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner SourceLocation getMemberLoc() const { return MemberLoc; } 18021f0d0133b0e8d1f01f63951ee04927796b34740dDouglas Gregor void setMemberLoc(SourceLocation L) { MemberLoc = L; } 18035f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 18045f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer virtual SourceRange getSourceRange() const { 180572527137c521ad9330ecb81ccd841159719dc8cdEli Friedman // If we have an implicit base (like a C++ implicit this), 180672527137c521ad9330ecb81ccd841159719dc8cdEli Friedman // make sure not to return its location 18072577743c5650c646fb705df01403707e94f2df04Abramo Bagnara SourceLocation EndLoc = (HasExplicitTemplateArgumentList) 18082577743c5650c646fb705df01403707e94f2df04Abramo Bagnara ? getRAngleLoc() : getMemberNameInfo().getEndLoc(); 18091eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 181072527137c521ad9330ecb81ccd841159719dc8cdEli Friedman SourceLocation BaseLoc = getBase()->getLocStart(); 181172527137c521ad9330ecb81ccd841159719dc8cdEli Friedman if (BaseLoc.isInvalid()) 1812c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor return SourceRange(MemberLoc, EndLoc); 1813c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor return SourceRange(BaseLoc, EndLoc); 18145f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 18151eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 18165f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer virtual SourceLocation getExprLoc() const { return MemberLoc; } 18175f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 18181eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 181983f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor return T->getStmtClass() == MemberExprClass; 18205f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 18215f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const MemberExpr *) { return true; } 18221eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 18231237c673c07f9d827129ba02720108816abde562Ted Kremenek // Iterators 18241237c673c07f9d827129ba02720108816abde562Ted Kremenek virtual child_iterator child_begin(); 18251237c673c07f9d827129ba02720108816abde562Ted Kremenek virtual child_iterator child_end(); 18265f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 18275f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 18281eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// CompoundLiteralExpr - [C99 6.5.2.5] 1829aff1edd84aaafef15b737acd8ec61abcca6d6bc3Steve Naroff/// 1830aff1edd84aaafef15b737acd8ec61abcca6d6bc3Steve Naroffclass CompoundLiteralExpr : public Expr { 18310fc53dfc7a33f68e71ef245389c4e7cd34a62a39Chris Lattner /// LParenLoc - If non-null, this is the location of the left paren in a 18320fc53dfc7a33f68e71ef245389c4e7cd34a62a39Chris Lattner /// compound literal like "(int){4}". This can be null if this is a 18330fc53dfc7a33f68e71ef245389c4e7cd34a62a39Chris Lattner /// synthesized compound expression. 18340fc53dfc7a33f68e71ef245389c4e7cd34a62a39Chris Lattner SourceLocation LParenLoc; 18351d7d8d66eff7ed0f3e957d330930cc9ab8047addJohn McCall 18361d7d8d66eff7ed0f3e957d330930cc9ab8047addJohn McCall /// The type as written. This can be an incomplete array type, in 18371d7d8d66eff7ed0f3e957d330930cc9ab8047addJohn McCall /// which case the actual expression type will be different. 183842f56b50062cd3b3c6b23fdb9053578ae9145664John McCall TypeSourceInfo *TInfo; 18395549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Stmt *Init; 1840e9b12198c4cc7f5687960100351b4af006c14469Steve Naroff bool FileScope; 1841aff1edd84aaafef15b737acd8ec61abcca6d6bc3Steve Naroffpublic: 18422333f7727f97018d6742e1e0938133bcfad967abEli Friedman // FIXME: Can compound literals be value-dependent? 184342f56b50062cd3b3c6b23fdb9053578ae9145664John McCall CompoundLiteralExpr(SourceLocation lparenloc, TypeSourceInfo *tinfo, 18441d7d8d66eff7ed0f3e957d330930cc9ab8047addJohn McCall QualType T, Expr *init, bool fileScope) 18451d7d8d66eff7ed0f3e957d330930cc9ab8047addJohn McCall : Expr(CompoundLiteralExprClass, T, 184642f56b50062cd3b3c6b23fdb9053578ae9145664John McCall tinfo->getType()->isDependentType(), false), 184742f56b50062cd3b3c6b23fdb9053578ae9145664John McCall LParenLoc(lparenloc), TInfo(tinfo), Init(init), FileScope(fileScope) {} 18481eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1849ba6d7e7fa5f79959d3eef39adb5620d845ba5198Douglas Gregor /// \brief Construct an empty compound literal. 1850ba6d7e7fa5f79959d3eef39adb5620d845ba5198Douglas Gregor explicit CompoundLiteralExpr(EmptyShell Empty) 1851ba6d7e7fa5f79959d3eef39adb5620d845ba5198Douglas Gregor : Expr(CompoundLiteralExprClass, Empty) { } 1852ba6d7e7fa5f79959d3eef39adb5620d845ba5198Douglas Gregor 18535549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek const Expr *getInitializer() const { return cast<Expr>(Init); } 18545549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getInitializer() { return cast<Expr>(Init); } 1855ba6d7e7fa5f79959d3eef39adb5620d845ba5198Douglas Gregor void setInitializer(Expr *E) { Init = E; } 1856e9b12198c4cc7f5687960100351b4af006c14469Steve Naroff 1857e9b12198c4cc7f5687960100351b4af006c14469Steve Naroff bool isFileScope() const { return FileScope; } 1858ba6d7e7fa5f79959d3eef39adb5620d845ba5198Douglas Gregor void setFileScope(bool FS) { FileScope = FS; } 1859ba6d7e7fa5f79959d3eef39adb5620d845ba5198Douglas Gregor 18600fc53dfc7a33f68e71ef245389c4e7cd34a62a39Chris Lattner SourceLocation getLParenLoc() const { return LParenLoc; } 1861ba6d7e7fa5f79959d3eef39adb5620d845ba5198Douglas Gregor void setLParenLoc(SourceLocation L) { LParenLoc = L; } 1862ba6d7e7fa5f79959d3eef39adb5620d845ba5198Douglas Gregor 186342f56b50062cd3b3c6b23fdb9053578ae9145664John McCall TypeSourceInfo *getTypeSourceInfo() const { return TInfo; } 186442f56b50062cd3b3c6b23fdb9053578ae9145664John McCall void setTypeSourceInfo(TypeSourceInfo* tinfo) { TInfo = tinfo; } 186542f56b50062cd3b3c6b23fdb9053578ae9145664John McCall 186673d0d4fac161ed12926e010dcf8b448a8de6a2ecChris Lattner virtual SourceRange getSourceRange() const { 18670fc53dfc7a33f68e71ef245389c4e7cd34a62a39Chris Lattner // FIXME: Init should never be null. 18680fc53dfc7a33f68e71ef245389c4e7cd34a62a39Chris Lattner if (!Init) 18690fc53dfc7a33f68e71ef245389c4e7cd34a62a39Chris Lattner return SourceRange(); 18700fc53dfc7a33f68e71ef245389c4e7cd34a62a39Chris Lattner if (LParenLoc.isInvalid()) 187173d0d4fac161ed12926e010dcf8b448a8de6a2ecChris Lattner return Init->getSourceRange(); 18720fc53dfc7a33f68e71ef245389c4e7cd34a62a39Chris Lattner return SourceRange(LParenLoc, Init->getLocEnd()); 187373d0d4fac161ed12926e010dcf8b448a8de6a2ecChris Lattner } 1874aff1edd84aaafef15b737acd8ec61abcca6d6bc3Steve Naroff 18751eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 18761eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == CompoundLiteralExprClass; 1877aff1edd84aaafef15b737acd8ec61abcca6d6bc3Steve Naroff } 1878aff1edd84aaafef15b737acd8ec61abcca6d6bc3Steve Naroff static bool classof(const CompoundLiteralExpr *) { return true; } 18791eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 18801237c673c07f9d827129ba02720108816abde562Ted Kremenek // Iterators 18811237c673c07f9d827129ba02720108816abde562Ted Kremenek virtual child_iterator child_begin(); 18821237c673c07f9d827129ba02720108816abde562Ted Kremenek virtual child_iterator child_end(); 1883aff1edd84aaafef15b737acd8ec61abcca6d6bc3Steve Naroff}; 1884aff1edd84aaafef15b737acd8ec61abcca6d6bc3Steve Naroff 188549badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// CastExpr - Base class for type casts, including both implicit 188649badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// casts (ImplicitCastExpr) and explicit casts that have some 188749badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// representation in the source code (ExplicitCastExpr's derived 188849badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// classes). 18890835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidisclass CastExpr : public Expr { 1890cdef2b75aa60cde1ca00e0aa3f89139ac89c6ae4Anders Carlssonpublic: 18915baba9d98364a3525d6afa15a04cdad82fd6dd30John McCall typedef clang::CastKind CastKind; 18921eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1893cdef2b75aa60cde1ca00e0aa3f89139ac89c6ae4Anders Carlssonprivate: 1894f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall unsigned Kind : 5; 1895f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall unsigned BasePathSize : BitsRemaining - 5; 18960835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis Stmt *Op; 1897409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson 18987ab9d574d27ecee1f130e5755aa403e5ab529b6bAnders Carlsson void CheckBasePath() const { 1899409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson#ifndef NDEBUG 1900409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson switch (getCastKind()) { 19015cf86ba6b5a724bf91cb52feade1158f1fbeb605Anders Carlsson case CK_DerivedToBase: 1902cee22421929c91b481f4d1bb85cd48c0f6b7510bAnders Carlsson case CK_UncheckedDerivedToBase: 1903cee22421929c91b481f4d1bb85cd48c0f6b7510bAnders Carlsson case CK_DerivedToBaseMemberPointer: 1904409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson case CK_BaseToDerived: 1905409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson case CK_BaseToDerivedMemberPointer: 1906f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall assert(!path_empty() && "Cast kind should have a base path!"); 1907f9d68e1dd015972318b2448f75115ff4fc3d5008Anders Carlsson break; 1908409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson 1909409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson // These should not have an inheritance path. 1910409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson case CK_Unknown: 1911409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson case CK_BitCast: 1912e39a3894513349908cdb3beba2614e53cb288e6cDouglas Gregor case CK_LValueBitCast: 1913409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson case CK_NoOp: 1914409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson case CK_Dynamic: 1915409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson case CK_ToUnion: 1916409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson case CK_ArrayToPointerDecay: 1917409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson case CK_FunctionToPointerDecay: 1918409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson case CK_NullToMemberPointer: 1919409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson case CK_UserDefinedConversion: 1920409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson case CK_ConstructorConversion: 1921409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson case CK_IntegralToPointer: 1922409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson case CK_PointerToIntegral: 1923409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson case CK_ToVoid: 1924409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson case CK_VectorSplat: 1925409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson case CK_IntegralCast: 1926409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson case CK_IntegralToFloating: 1927409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson case CK_FloatingToIntegral: 1928409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson case CK_FloatingCast: 1929409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson case CK_MemberPointerToBoolean: 1930409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson case CK_AnyPointerToObjCPointerCast: 1931409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson case CK_AnyPointerToBlockPointerCast: 1932569c3166874324c24011f8ade6978421f0d39b3cDouglas Gregor case CK_ObjCObjectLValueCast: 1933f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall assert(path_empty() && "Cast kind should not have a base path!"); 1934409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson break; 1935409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson } 1936409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson#endif 1937409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson } 1938409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson 1939f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall const CXXBaseSpecifier * const *path_buffer() const { 1940f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall return const_cast<CastExpr*>(this)->path_buffer(); 1941f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall } 1942f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall CXXBaseSpecifier **path_buffer(); 1943f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall 19440835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidisprotected: 1945409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson CastExpr(StmtClass SC, QualType ty, const CastKind kind, Expr *op, 1946f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall unsigned BasePathSize) : 1947898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor Expr(SC, ty, 1948898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // Cast expressions are type-dependent if the type is 1949898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // dependent (C++ [temp.dep.expr]p3). 1950898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor ty->isDependentType(), 1951898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // Cast expressions are value-dependent if the type is 1952898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // dependent or if the subexpression is value-dependent. 19531eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump ty->isDependentType() || (op && op->isValueDependent())), 1954f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall Kind(kind), BasePathSize(BasePathSize), Op(op) { 1955f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall CheckBasePath(); 1956f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall } 19571eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1958087fd536809ebe754d91c641a98917e02dd7452dDouglas Gregor /// \brief Construct an empty cast. 1959f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall CastExpr(StmtClass SC, EmptyShell Empty, unsigned BasePathSize) 1960f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall : Expr(SC, Empty), BasePathSize(BasePathSize) { } 19611eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 19620835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidispublic: 1963f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall CastKind getCastKind() const { return static_cast<CastKind>(Kind); } 1964cdef2b75aa60cde1ca00e0aa3f89139ac89c6ae4Anders Carlsson void setCastKind(CastKind K) { Kind = K; } 1965f8ec55a104e55961f8666f773dce99bbc628298fAnders Carlsson const char *getCastKindName() const; 1966f8ec55a104e55961f8666f773dce99bbc628298fAnders Carlsson 19670835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis Expr *getSubExpr() { return cast<Expr>(Op); } 19680835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis const Expr *getSubExpr() const { return cast<Expr>(Op); } 1969087fd536809ebe754d91c641a98917e02dd7452dDouglas Gregor void setSubExpr(Expr *E) { Op = E; } 1970087fd536809ebe754d91c641a98917e02dd7452dDouglas Gregor 19716eef519fc8a97bb7ca6066f23d35e10f06b2c1b5Douglas Gregor /// \brief Retrieve the cast subexpression as it was written in the source 19726eef519fc8a97bb7ca6066f23d35e10f06b2c1b5Douglas Gregor /// code, looking through any implicit casts or other intermediate nodes 19736eef519fc8a97bb7ca6066f23d35e10f06b2c1b5Douglas Gregor /// introduced by semantic analysis. 19746eef519fc8a97bb7ca6066f23d35e10f06b2c1b5Douglas Gregor Expr *getSubExprAsWritten(); 19756eef519fc8a97bb7ca6066f23d35e10f06b2c1b5Douglas Gregor const Expr *getSubExprAsWritten() const { 19766eef519fc8a97bb7ca6066f23d35e10f06b2c1b5Douglas Gregor return const_cast<CastExpr *>(this)->getSubExprAsWritten(); 19776eef519fc8a97bb7ca6066f23d35e10f06b2c1b5Douglas Gregor } 197841b2dcd465f1e438502c420effc9d0c747f9db8fAnders Carlsson 1979f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall typedef CXXBaseSpecifier **path_iterator; 1980f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall typedef const CXXBaseSpecifier * const *path_const_iterator; 1981f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall bool path_empty() const { return BasePathSize == 0; } 1982f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall unsigned path_size() const { return BasePathSize; } 1983f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall path_iterator path_begin() { return path_buffer(); } 1984f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall path_iterator path_end() { return path_buffer() + path_size(); } 1985f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall path_const_iterator path_begin() const { return path_buffer(); } 1986f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall path_const_iterator path_end() const { return path_buffer() + path_size(); } 1987f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall 1988f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall void setCastPath(const CXXCastPath &Path); 198941b2dcd465f1e438502c420effc9d0c747f9db8fAnders Carlsson 19901eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 19914bfe1968410ea8ffe3b4f629addd7c4bcf484765Sean Hunt return T->getStmtClass() >= firstCastExprConstant && 19924bfe1968410ea8ffe3b4f629addd7c4bcf484765Sean Hunt T->getStmtClass() <= lastCastExprConstant; 19930835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis } 19940835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis static bool classof(const CastExpr *) { return true; } 19951eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 19960835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis // Iterators 19970835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis virtual child_iterator child_begin(); 19980835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis virtual child_iterator child_end(); 19990835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis}; 20000835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis 200149badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// ImplicitCastExpr - Allows us to explicitly represent implicit type 200249badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// conversions, which have no direct representation in the original 200349badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// source code. For example: converting T[]->T*, void f()->void 200449badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// (*f)(), float->double, short->int, etc. 200549b4526992a8c8a6a290aa3efa9828154a24af8dSteve Naroff/// 2006bf3af056289893f58d37b05a2c80970708781d61Douglas Gregor/// In C, implicit casts always produce rvalues. However, in C++, an 2007bf3af056289893f58d37b05a2c80970708781d61Douglas Gregor/// implicit cast whose result is being bound to a reference will be 2008906082edf2aea1c6de2926f93a8d7121e49d2a54Sebastian Redl/// an lvalue or xvalue. For example: 2009bf3af056289893f58d37b05a2c80970708781d61Douglas Gregor/// 2010bf3af056289893f58d37b05a2c80970708781d61Douglas Gregor/// @code 2011bf3af056289893f58d37b05a2c80970708781d61Douglas Gregor/// class Base { }; 2012bf3af056289893f58d37b05a2c80970708781d61Douglas Gregor/// class Derived : public Base { }; 2013906082edf2aea1c6de2926f93a8d7121e49d2a54Sebastian Redl/// Derived &&ref(); 20141eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// void f(Derived d) { 2015906082edf2aea1c6de2926f93a8d7121e49d2a54Sebastian Redl/// Base& b = d; // initializer is an ImplicitCastExpr 2016906082edf2aea1c6de2926f93a8d7121e49d2a54Sebastian Redl/// // to an lvalue of type Base 2017906082edf2aea1c6de2926f93a8d7121e49d2a54Sebastian Redl/// Base&& r = ref(); // initializer is an ImplicitCastExpr 2018906082edf2aea1c6de2926f93a8d7121e49d2a54Sebastian Redl/// // to an xvalue of type Base 2019bf3af056289893f58d37b05a2c80970708781d61Douglas Gregor/// } 2020bf3af056289893f58d37b05a2c80970708781d61Douglas Gregor/// @endcode 20210835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidisclass ImplicitCastExpr : public CastExpr { 2022906082edf2aea1c6de2926f93a8d7121e49d2a54Sebastian Redlprivate: 2023f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall ImplicitCastExpr(QualType ty, CastKind kind, Expr *op, 20245baba9d98364a3525d6afa15a04cdad82fd6dd30John McCall unsigned BasePathLength, ExprValueKind VK) 20255baba9d98364a3525d6afa15a04cdad82fd6dd30John McCall : CastExpr(ImplicitCastExprClass, ty, kind, op, BasePathLength) { 20265baba9d98364a3525d6afa15a04cdad82fd6dd30John McCall ValueKind = VK; 20275baba9d98364a3525d6afa15a04cdad82fd6dd30John McCall } 202890045e8ebabf50d6f1b3a67081a621b20b5e5341Steve Naroff 2029087fd536809ebe754d91c641a98917e02dd7452dDouglas Gregor /// \brief Construct an empty implicit cast. 2030f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall explicit ImplicitCastExpr(EmptyShell Shell, unsigned PathSize) 2031f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall : CastExpr(ImplicitCastExprClass, Shell, PathSize) { } 2032f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall 2033f871d0cc377a1367b519a6cce26be74607566ebaJohn McCallpublic: 2034f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall enum OnStack_t { OnStack }; 2035f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall ImplicitCastExpr(OnStack_t _, QualType ty, CastKind kind, Expr *op, 20365baba9d98364a3525d6afa15a04cdad82fd6dd30John McCall ExprValueKind VK) 20375baba9d98364a3525d6afa15a04cdad82fd6dd30John McCall : CastExpr(ImplicitCastExprClass, ty, kind, op, 0) { 20385baba9d98364a3525d6afa15a04cdad82fd6dd30John McCall ValueKind = VK; 20395baba9d98364a3525d6afa15a04cdad82fd6dd30John McCall } 2040f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall 2041f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall static ImplicitCastExpr *Create(ASTContext &Context, QualType T, 2042f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall CastKind Kind, Expr *Operand, 2043f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall const CXXCastPath *BasePath, 20445baba9d98364a3525d6afa15a04cdad82fd6dd30John McCall ExprValueKind Cat); 2045f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall 2046f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall static ImplicitCastExpr *CreateEmpty(ASTContext &Context, unsigned PathSize); 2047087fd536809ebe754d91c641a98917e02dd7452dDouglas Gregor 20480835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis virtual SourceRange getSourceRange() const { 20490835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis return getSubExpr()->getSourceRange(); 20500835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis } 205190045e8ebabf50d6f1b3a67081a621b20b5e5341Steve Naroff 20525baba9d98364a3525d6afa15a04cdad82fd6dd30John McCall /// getValueKind - The value kind that this cast produces. 20535baba9d98364a3525d6afa15a04cdad82fd6dd30John McCall ExprValueKind getValueKind() const { 20545baba9d98364a3525d6afa15a04cdad82fd6dd30John McCall return static_cast<ExprValueKind>(ValueKind); 20555baba9d98364a3525d6afa15a04cdad82fd6dd30John McCall } 2056eb8f3063257a392f15aea48d42fb73ec51afc548Douglas Gregor 20575baba9d98364a3525d6afa15a04cdad82fd6dd30John McCall /// setValueKind - Set the value kind this cast produces. 20585baba9d98364a3525d6afa15a04cdad82fd6dd30John McCall void setValueKind(ExprValueKind Cat) { ValueKind = Cat; } 2059eb8f3063257a392f15aea48d42fb73ec51afc548Douglas Gregor 20601eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 20611eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == ImplicitCastExprClass; 206249b4526992a8c8a6a290aa3efa9828154a24af8dSteve Naroff } 206349b4526992a8c8a6a290aa3efa9828154a24af8dSteve Naroff static bool classof(const ImplicitCastExpr *) { return true; } 206449b4526992a8c8a6a290aa3efa9828154a24af8dSteve Naroff}; 206549b4526992a8c8a6a290aa3efa9828154a24af8dSteve Naroff 206649badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// ExplicitCastExpr - An explicit cast written in the source 20671eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// code. 206849badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// 206949badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// This class is effectively an abstract class, because it provides 207049badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// the basic representation of an explicitly-written cast without 207149badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// specifying which kind of cast (C cast, functional cast, static 207249badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// cast, etc.) was written; specific derived classes represent the 207349badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// particular style of cast and its location information. 20745f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 207549badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// Unlike implicit casts, explicit cast nodes have two different 207649badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// types: the type that was written into the source code, and the 207749badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// actual type of the expression as determined by semantic 207849badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// analysis. These types may differ slightly. For example, in C++ one 207949badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// can cast to a reference type, which indicates that the resulting 2080906082edf2aea1c6de2926f93a8d7121e49d2a54Sebastian Redl/// expression will be an lvalue or xvalue. The reference type, however, 2081906082edf2aea1c6de2926f93a8d7121e49d2a54Sebastian Redl/// will not be used as the type of the expression. 20820835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidisclass ExplicitCastExpr : public CastExpr { 20839d125033a9853f3b572a4c9e2f9e2d4e5e346973John McCall /// TInfo - Source type info for the (written) type 20849d125033a9853f3b572a4c9e2f9e2d4e5e346973John McCall /// this expression is casting to. 20859d125033a9853f3b572a4c9e2f9e2d4e5e346973John McCall TypeSourceInfo *TInfo; 208649badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor 208749badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregorprotected: 2088c0a2fd8f092722c8f78b566ac4506a21437040e9Anders Carlsson ExplicitCastExpr(StmtClass SC, QualType exprTy, CastKind kind, 2089f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall Expr *op, unsigned PathSize, TypeSourceInfo *writtenTy) 2090f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall : CastExpr(SC, exprTy, kind, op, PathSize), TInfo(writtenTy) {} 209149badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor 2092db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor /// \brief Construct an empty explicit cast. 2093f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall ExplicitCastExpr(StmtClass SC, EmptyShell Shell, unsigned PathSize) 2094f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall : CastExpr(SC, Shell, PathSize) { } 2095db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor 209649badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregorpublic: 20979d125033a9853f3b572a4c9e2f9e2d4e5e346973John McCall /// getTypeInfoAsWritten - Returns the type source info for the type 20989d125033a9853f3b572a4c9e2f9e2d4e5e346973John McCall /// that this expression is casting to. 20999d125033a9853f3b572a4c9e2f9e2d4e5e346973John McCall TypeSourceInfo *getTypeInfoAsWritten() const { return TInfo; } 21009d125033a9853f3b572a4c9e2f9e2d4e5e346973John McCall void setTypeInfoAsWritten(TypeSourceInfo *writtenTy) { TInfo = writtenTy; } 21019d125033a9853f3b572a4c9e2f9e2d4e5e346973John McCall 210249badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor /// getTypeAsWritten - Returns the type that this expression is 210349badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor /// casting to, as written in the source code. 21049d125033a9853f3b572a4c9e2f9e2d4e5e346973John McCall QualType getTypeAsWritten() const { return TInfo->getType(); } 210549badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor 21061eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 21074bfe1968410ea8ffe3b4f629addd7c4bcf484765Sean Hunt return T->getStmtClass() >= firstExplicitCastExprConstant && 21084bfe1968410ea8ffe3b4f629addd7c4bcf484765Sean Hunt T->getStmtClass() <= lastExplicitCastExprConstant; 210949badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor } 211049badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor static bool classof(const ExplicitCastExpr *) { return true; } 211149badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor}; 211249badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor 21136eec8e883de118b431e3ead5b1e604a6ac68ff6bDouglas Gregor/// CStyleCastExpr - An explicit cast in C (C99 6.5.4) or a C-style 211449badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// cast in C++ (C++ [expr.cast]), which uses the syntax 211549badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// (Type)expr. For example: @c (int)f. 21166eec8e883de118b431e3ead5b1e604a6ac68ff6bDouglas Gregorclass CStyleCastExpr : public ExplicitCastExpr { 2117b2f9e516327310d95840d442416084508f80c183Steve Naroff SourceLocation LPLoc; // the location of the left paren 2118b2f9e516327310d95840d442416084508f80c183Steve Naroff SourceLocation RPLoc; // the location of the right paren 2119f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall 21209d125033a9853f3b572a4c9e2f9e2d4e5e346973John McCall CStyleCastExpr(QualType exprTy, CastKind kind, Expr *op, 2121f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall unsigned PathSize, TypeSourceInfo *writtenTy, 212241b2dcd465f1e438502c420effc9d0c747f9db8fAnders Carlsson SourceLocation l, SourceLocation r) 2123f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall : ExplicitCastExpr(CStyleCastExprClass, exprTy, kind, op, PathSize, 212441b2dcd465f1e438502c420effc9d0c747f9db8fAnders Carlsson writtenTy), LPLoc(l), RPLoc(r) {} 212549b4526992a8c8a6a290aa3efa9828154a24af8dSteve Naroff 2126db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor /// \brief Construct an empty C-style explicit cast. 2127f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall explicit CStyleCastExpr(EmptyShell Shell, unsigned PathSize) 2128f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall : ExplicitCastExpr(CStyleCastExprClass, Shell, PathSize) { } 2129f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall 2130f871d0cc377a1367b519a6cce26be74607566ebaJohn McCallpublic: 2131f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall static CStyleCastExpr *Create(ASTContext &Context, QualType T, CastKind K, 2132f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall Expr *Op, const CXXCastPath *BasePath, 2133f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall TypeSourceInfo *WrittenTy, SourceLocation L, 2134f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall SourceLocation R); 2135f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall 2136f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall static CStyleCastExpr *CreateEmpty(ASTContext &Context, unsigned PathSize); 2137db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor 2138b2f9e516327310d95840d442416084508f80c183Steve Naroff SourceLocation getLParenLoc() const { return LPLoc; } 2139db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor void setLParenLoc(SourceLocation L) { LPLoc = L; } 2140db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor 2141b2f9e516327310d95840d442416084508f80c183Steve Naroff SourceLocation getRParenLoc() const { return RPLoc; } 2142db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor void setRParenLoc(SourceLocation L) { RPLoc = L; } 2143db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor 21445f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer virtual SourceRange getSourceRange() const { 2145b2f9e516327310d95840d442416084508f80c183Steve Naroff return SourceRange(LPLoc, getSubExpr()->getSourceRange().getEnd()); 21465f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 21471eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 21481eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == CStyleCastExprClass; 21495f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 21506eec8e883de118b431e3ead5b1e604a6ac68ff6bDouglas Gregor static bool classof(const CStyleCastExpr *) { return true; } 21515f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 21525f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 21533fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// \brief A builtin binary operation expression such as "x + y" or "x <= y". 21543fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// 21553fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// This expression node kind describes a builtin binary operation, 21563fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// such as "x + y" for integer values "x" and "y". The operands will 21573fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// already have been converted to appropriate types (e.g., by 21583fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// performing promotions or conversions). 21593fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// 21603fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// In C++, where operators may be overloaded, a different kind of 21613fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// expression node (CXXOperatorCallExpr) is used to express the 21623fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// invocation of an overloaded operator with operator syntax. Within 21633fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// a C++ template, whether BinaryOperator or CXXOperatorCallExpr is 21643fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// used to store an expression "x + y" depends on the subexpressions 21653fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// for x and y. If neither x or y is type-dependent, and the "+" 21663fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// operator resolves to a built-in operation, BinaryOperator will be 21673fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// used to express the computation (x and y may still be 21683fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// value-dependent). If either x or y is type-dependent, or if the 21693fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// "+" resolves to an overloaded operator, CXXOperatorCallExpr will 21703fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// be used to express the computation. 21715f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass BinaryOperator : public Expr { 21725f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 21735baba9d98364a3525d6afa15a04cdad82fd6dd30John McCall typedef BinaryOperatorKind Opcode; 21745baba9d98364a3525d6afa15a04cdad82fd6dd30John McCall 217517d1b2ac9f8371a0a2e79d4f8e0008658164f080Chris Lattnerprivate: 21760799c53fc2bb7acf937c8a8e165033dba1a5aba3John McCall unsigned Opc : 6; 21770799c53fc2bb7acf937c8a8e165033dba1a5aba3John McCall SourceLocation OpLoc; 21780799c53fc2bb7acf937c8a8e165033dba1a5aba3John McCall 217917d1b2ac9f8371a0a2e79d4f8e0008658164f080Chris Lattner enum { LHS, RHS, END_EXPR }; 21805549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Stmt* SubExprs[END_EXPR]; 21811eb4433ac451dc16f4133a88af2d002ac26c58efMike Stumppublic: 21821eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 218317d1b2ac9f8371a0a2e79d4f8e0008658164f080Chris Lattner BinaryOperator(Expr *lhs, Expr *rhs, Opcode opc, QualType ResTy, 218417d1b2ac9f8371a0a2e79d4f8e0008658164f080Chris Lattner SourceLocation opLoc) 2185898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor : Expr(BinaryOperatorClass, ResTy, 2186898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor lhs->isTypeDependent() || rhs->isTypeDependent(), 21871eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump lhs->isValueDependent() || rhs->isValueDependent()), 2188898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor Opc(opc), OpLoc(opLoc) { 21891237c673c07f9d827129ba02720108816abde562Ted Kremenek SubExprs[LHS] = lhs; 21901237c673c07f9d827129ba02720108816abde562Ted Kremenek SubExprs[RHS] = rhs; 21911eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump assert(!isCompoundAssignmentOp() && 21925f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer "Use ArithAssignBinaryOperator for compound assignments"); 21935f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 21945f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 2195db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor /// \brief Construct an empty binary operator. 21961eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump explicit BinaryOperator(EmptyShell Empty) 21972de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall : Expr(BinaryOperatorClass, Empty), Opc(BO_Comma) { } 2198db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor 219917d1b2ac9f8371a0a2e79d4f8e0008658164f080Chris Lattner SourceLocation getOperatorLoc() const { return OpLoc; } 2200db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor void setOperatorLoc(SourceLocation L) { OpLoc = L; } 2201db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor 22020799c53fc2bb7acf937c8a8e165033dba1a5aba3John McCall Opcode getOpcode() const { return static_cast<Opcode>(Opc); } 2203db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor void setOpcode(Opcode O) { Opc = O; } 2204db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor 22055549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getLHS() const { return cast<Expr>(SubExprs[LHS]); } 2206db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor void setLHS(Expr *E) { SubExprs[LHS] = E; } 22075549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getRHS() const { return cast<Expr>(SubExprs[RHS]); } 2208db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor void setRHS(Expr *E) { SubExprs[RHS] = E; } 2209db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor 22105f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer virtual SourceRange getSourceRange() const { 22115f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return SourceRange(getLHS()->getLocStart(), getRHS()->getLocEnd()); 22125f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 22131eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 22145f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// getOpcodeStr - Turn an Opcode enum value into the punctuation char it 22155f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// corresponds to, e.g. "<<=". 22165f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static const char *getOpcodeStr(Opcode Op); 22175f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 22180799c53fc2bb7acf937c8a8e165033dba1a5aba3John McCall const char *getOpcodeStr() const { return getOpcodeStr(getOpcode()); } 2219a84c02d0f4d63975a1c52b9bb8308d88e9d79352Ted Kremenek 2220063daf6e196c51f162e0485478355d8e280eef5cDouglas Gregor /// \brief Retrieve the binary opcode that corresponds to the given 2221063daf6e196c51f162e0485478355d8e280eef5cDouglas Gregor /// overloaded operator. 2222063daf6e196c51f162e0485478355d8e280eef5cDouglas Gregor static Opcode getOverloadedOpcode(OverloadedOperatorKind OO); 2223063daf6e196c51f162e0485478355d8e280eef5cDouglas Gregor 2224063daf6e196c51f162e0485478355d8e280eef5cDouglas Gregor /// \brief Retrieve the overloaded operator kind that corresponds to 2225063daf6e196c51f162e0485478355d8e280eef5cDouglas Gregor /// the given binary opcode. 2226063daf6e196c51f162e0485478355d8e280eef5cDouglas Gregor static OverloadedOperatorKind getOverloadedOperator(Opcode Opc); 2227063daf6e196c51f162e0485478355d8e280eef5cDouglas Gregor 22285f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// predicates to categorize the respective opcodes. 22292de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall bool isMultiplicativeOp() const { return Opc >= BO_Mul && Opc <= BO_Rem; } 22302de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall static bool isAdditiveOp(Opcode Opc) { return Opc == BO_Add || Opc==BO_Sub; } 22310799c53fc2bb7acf937c8a8e165033dba1a5aba3John McCall bool isAdditiveOp() const { return isAdditiveOp(getOpcode()); } 22322de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall static bool isShiftOp(Opcode Opc) { return Opc == BO_Shl || Opc == BO_Shr; } 22330799c53fc2bb7acf937c8a8e165033dba1a5aba3John McCall bool isShiftOp() const { return isShiftOp(getOpcode()); } 2234aee3c9375f97a49edef2a36f15df6abd9748e2a1Sebastian Redl 22352de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall static bool isBitwiseOp(Opcode Opc) { return Opc >= BO_And && Opc <= BO_Or; } 22360799c53fc2bb7acf937c8a8e165033dba1a5aba3John McCall bool isBitwiseOp() const { return isBitwiseOp(getOpcode()); } 2237f2da7a06f6b98c3886d9b871ab839f5085b1c238Ted Kremenek 22382de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall static bool isRelationalOp(Opcode Opc) { return Opc >= BO_LT && Opc<=BO_GE; } 22390799c53fc2bb7acf937c8a8e165033dba1a5aba3John McCall bool isRelationalOp() const { return isRelationalOp(getOpcode()); } 2240f2da7a06f6b98c3886d9b871ab839f5085b1c238Ted Kremenek 22412de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall static bool isEqualityOp(Opcode Opc) { return Opc == BO_EQ || Opc == BO_NE; } 22420799c53fc2bb7acf937c8a8e165033dba1a5aba3John McCall bool isEqualityOp() const { return isEqualityOp(getOpcode()); } 22431eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 22442de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall static bool isComparisonOp(Opcode Opc) { return Opc >= BO_LT && Opc<=BO_NE; } 22450799c53fc2bb7acf937c8a8e165033dba1a5aba3John McCall bool isComparisonOp() const { return isComparisonOp(getOpcode()); } 2246aee3c9375f97a49edef2a36f15df6abd9748e2a1Sebastian Redl 22472de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall static bool isLogicalOp(Opcode Opc) { return Opc == BO_LAnd || Opc==BO_LOr; } 22480799c53fc2bb7acf937c8a8e165033dba1a5aba3John McCall bool isLogicalOp() const { return isLogicalOp(getOpcode()); } 2249f2da7a06f6b98c3886d9b871ab839f5085b1c238Ted Kremenek 22502de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall bool isAssignmentOp() const { return Opc >= BO_Assign && Opc <= BO_OrAssign; } 22512de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall bool isCompoundAssignmentOp() const { 22522de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall return Opc > BO_Assign && Opc <= BO_OrAssign; 22532de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall } 22542de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall bool isShiftAssignOp() const { 22552de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall return Opc == BO_ShlAssign || Opc == BO_ShrAssign; 22562de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall } 22571eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 22581eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *S) { 22594bfe1968410ea8ffe3b4f629addd7c4bcf484765Sean Hunt return S->getStmtClass() >= firstBinaryOperatorConstant && 22604bfe1968410ea8ffe3b4f629addd7c4bcf484765Sean Hunt S->getStmtClass() <= lastBinaryOperatorConstant; 22615f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 22625f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const BinaryOperator *) { return true; } 22631237c673c07f9d827129ba02720108816abde562Ted Kremenek 22641237c673c07f9d827129ba02720108816abde562Ted Kremenek // Iterators 22651237c673c07f9d827129ba02720108816abde562Ted Kremenek virtual child_iterator child_begin(); 22661237c673c07f9d827129ba02720108816abde562Ted Kremenek virtual child_iterator child_end(); 22671237c673c07f9d827129ba02720108816abde562Ted Kremenek 22685f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerprotected: 226917d1b2ac9f8371a0a2e79d4f8e0008658164f080Chris Lattner BinaryOperator(Expr *lhs, Expr *rhs, Opcode opc, QualType ResTy, 22702333f7727f97018d6742e1e0938133bcfad967abEli Friedman SourceLocation opLoc, bool dead) 22712333f7727f97018d6742e1e0938133bcfad967abEli Friedman : Expr(CompoundAssignOperatorClass, ResTy, 22722333f7727f97018d6742e1e0938133bcfad967abEli Friedman lhs->isTypeDependent() || rhs->isTypeDependent(), 22732333f7727f97018d6742e1e0938133bcfad967abEli Friedman lhs->isValueDependent() || rhs->isValueDependent()), 22742333f7727f97018d6742e1e0938133bcfad967abEli Friedman Opc(opc), OpLoc(opLoc) { 22751237c673c07f9d827129ba02720108816abde562Ted Kremenek SubExprs[LHS] = lhs; 22761237c673c07f9d827129ba02720108816abde562Ted Kremenek SubExprs[RHS] = rhs; 22775f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 2278ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor 22791eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump BinaryOperator(StmtClass SC, EmptyShell Empty) 22802de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall : Expr(SC, Empty), Opc(BO_MulAssign) { } 22815f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 22825f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 22835f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// CompoundAssignOperator - For compound assignments (e.g. +=), we keep 22845f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// track of the type the operation is performed in. Due to the semantics of 22855f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// these operators, the operands are promoted, the aritmetic performed, an 22865f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// implicit conversion back to the result type done, then the assignment takes 22875f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// place. This captures the intermediate type which the computation is done 22885f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// in. 22895f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass CompoundAssignOperator : public BinaryOperator { 2290ab3a852ae713189444dcbf75e70accf1e8c2b7f2Eli Friedman QualType ComputationLHSType; 2291ab3a852ae713189444dcbf75e70accf1e8c2b7f2Eli Friedman QualType ComputationResultType; 22925f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 22935f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer CompoundAssignOperator(Expr *lhs, Expr *rhs, Opcode opc, 2294ab3a852ae713189444dcbf75e70accf1e8c2b7f2Eli Friedman QualType ResType, QualType CompLHSType, 2295ab3a852ae713189444dcbf75e70accf1e8c2b7f2Eli Friedman QualType CompResultType, 229617d1b2ac9f8371a0a2e79d4f8e0008658164f080Chris Lattner SourceLocation OpLoc) 229717d1b2ac9f8371a0a2e79d4f8e0008658164f080Chris Lattner : BinaryOperator(lhs, rhs, opc, ResType, OpLoc, true), 2298ab3a852ae713189444dcbf75e70accf1e8c2b7f2Eli Friedman ComputationLHSType(CompLHSType), 2299ab3a852ae713189444dcbf75e70accf1e8c2b7f2Eli Friedman ComputationResultType(CompResultType) { 23001eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump assert(isCompoundAssignmentOp() && 23015f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer "Only should be used for compound assignments"); 23025f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 23035f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 2304ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor /// \brief Build an empty compound assignment operator expression. 2305ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor explicit CompoundAssignOperator(EmptyShell Empty) 2306ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor : BinaryOperator(CompoundAssignOperatorClass, Empty) { } 2307ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor 2308ab3a852ae713189444dcbf75e70accf1e8c2b7f2Eli Friedman // The two computation types are the type the LHS is converted 2309ab3a852ae713189444dcbf75e70accf1e8c2b7f2Eli Friedman // to for the computation and the type of the result; the two are 2310ab3a852ae713189444dcbf75e70accf1e8c2b7f2Eli Friedman // distinct in a few cases (specifically, int+=ptr and ptr-=ptr). 2311ab3a852ae713189444dcbf75e70accf1e8c2b7f2Eli Friedman QualType getComputationLHSType() const { return ComputationLHSType; } 2312ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor void setComputationLHSType(QualType T) { ComputationLHSType = T; } 2313ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor 2314ab3a852ae713189444dcbf75e70accf1e8c2b7f2Eli Friedman QualType getComputationResultType() const { return ComputationResultType; } 2315ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor void setComputationResultType(QualType T) { ComputationResultType = T; } 2316ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor 23175f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const CompoundAssignOperator *) { return true; } 23181eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *S) { 23191eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return S->getStmtClass() == CompoundAssignOperatorClass; 23205f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 23215f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 23225f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 23235f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// ConditionalOperator - The ?: operator. Note that LHS may be null when the 23245f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// GNU "missing LHS" extension is in use. 23255f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 23265f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass ConditionalOperator : public Expr { 23271237c673c07f9d827129ba02720108816abde562Ted Kremenek enum { COND, LHS, RHS, END_EXPR }; 23285549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Stmt* SubExprs[END_EXPR]; // Left/Middle/Right hand sides. 232947e1f7c68bf375cac470fdb2b599ddbb395aeb52Douglas Gregor SourceLocation QuestionLoc, ColonLoc; 23305f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 233147e1f7c68bf375cac470fdb2b599ddbb395aeb52Douglas Gregor ConditionalOperator(Expr *cond, SourceLocation QLoc, Expr *lhs, 233247e1f7c68bf375cac470fdb2b599ddbb395aeb52Douglas Gregor SourceLocation CLoc, Expr *rhs, QualType t) 2333898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor : Expr(ConditionalOperatorClass, t, 2334898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // FIXME: the type of the conditional operator doesn't 2335898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // depend on the type of the conditional, but the standard 2336898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // seems to imply that it could. File a bug! 2337898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor ((lhs && lhs->isTypeDependent()) || (rhs && rhs->isTypeDependent())), 23381eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump (cond->isValueDependent() || 2339898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor (lhs && lhs->isValueDependent()) || 234047e1f7c68bf375cac470fdb2b599ddbb395aeb52Douglas Gregor (rhs && rhs->isValueDependent()))), 234147e1f7c68bf375cac470fdb2b599ddbb395aeb52Douglas Gregor QuestionLoc(QLoc), 234247e1f7c68bf375cac470fdb2b599ddbb395aeb52Douglas Gregor ColonLoc(CLoc) { 23431237c673c07f9d827129ba02720108816abde562Ted Kremenek SubExprs[COND] = cond; 23441237c673c07f9d827129ba02720108816abde562Ted Kremenek SubExprs[LHS] = lhs; 23451237c673c07f9d827129ba02720108816abde562Ted Kremenek SubExprs[RHS] = rhs; 23461237c673c07f9d827129ba02720108816abde562Ted Kremenek } 23475f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 2348ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor /// \brief Build an empty conditional operator. 2349ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor explicit ConditionalOperator(EmptyShell Empty) 2350ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor : Expr(ConditionalOperatorClass, Empty) { } 2351ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor 2352395a2abf0028968d85958610e393e067885dc14fTed Kremenek // getCond - Return the expression representing the condition for 2353395a2abf0028968d85958610e393e067885dc14fTed Kremenek // the ?: operator. 23545549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getCond() const { return cast<Expr>(SubExprs[COND]); } 2355ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor void setCond(Expr *E) { SubExprs[COND] = E; } 2356395a2abf0028968d85958610e393e067885dc14fTed Kremenek 2357395a2abf0028968d85958610e393e067885dc14fTed Kremenek // getTrueExpr - Return the subexpression representing the value of the ?: 2358395a2abf0028968d85958610e393e067885dc14fTed Kremenek // expression if the condition evaluates to true. In most cases this value 2359395a2abf0028968d85958610e393e067885dc14fTed Kremenek // will be the same as getLHS() except a GCC extension allows the left 2360395a2abf0028968d85958610e393e067885dc14fTed Kremenek // subexpression to be omitted, and instead of the condition be returned. 2361395a2abf0028968d85958610e393e067885dc14fTed Kremenek // e.g: x ?: y is shorthand for x ? x : y, except that the expression "x" 23621eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // is only evaluated once. 2363395a2abf0028968d85958610e393e067885dc14fTed Kremenek Expr *getTrueExpr() const { 23645549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek return cast<Expr>(SubExprs[LHS] ? SubExprs[LHS] : SubExprs[COND]); 2365395a2abf0028968d85958610e393e067885dc14fTed Kremenek } 23661eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2367395a2abf0028968d85958610e393e067885dc14fTed Kremenek // getTrueExpr - Return the subexpression representing the value of the ?: 2368395a2abf0028968d85958610e393e067885dc14fTed Kremenek // expression if the condition evaluates to false. This is the same as getRHS. 23695549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getFalseExpr() const { return cast<Expr>(SubExprs[RHS]); } 23701eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 23715549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getLHS() const { return cast_or_null<Expr>(SubExprs[LHS]); } 2372ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor void setLHS(Expr *E) { SubExprs[LHS] = E; } 2373ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor 23745549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getRHS() const { return cast<Expr>(SubExprs[RHS]); } 2375ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor void setRHS(Expr *E) { SubExprs[RHS] = E; } 23765f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 237747e1f7c68bf375cac470fdb2b599ddbb395aeb52Douglas Gregor SourceLocation getQuestionLoc() const { return QuestionLoc; } 237847e1f7c68bf375cac470fdb2b599ddbb395aeb52Douglas Gregor void setQuestionLoc(SourceLocation L) { QuestionLoc = L; } 237947e1f7c68bf375cac470fdb2b599ddbb395aeb52Douglas Gregor 238047e1f7c68bf375cac470fdb2b599ddbb395aeb52Douglas Gregor SourceLocation getColonLoc() const { return ColonLoc; } 238147e1f7c68bf375cac470fdb2b599ddbb395aeb52Douglas Gregor void setColonLoc(SourceLocation L) { ColonLoc = L; } 238247e1f7c68bf375cac470fdb2b599ddbb395aeb52Douglas Gregor 23835f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer virtual SourceRange getSourceRange() const { 23845f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return SourceRange(getCond()->getLocStart(), getRHS()->getLocEnd()); 23855f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 23861eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 23871eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == ConditionalOperatorClass; 23885f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 23895f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const ConditionalOperator *) { return true; } 23901eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 23911237c673c07f9d827129ba02720108816abde562Ted Kremenek // Iterators 23921237c673c07f9d827129ba02720108816abde562Ted Kremenek virtual child_iterator child_begin(); 23931237c673c07f9d827129ba02720108816abde562Ted Kremenek virtual child_iterator child_end(); 23945f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 23955f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 23966481a57fefbf1a313ff439028470fe4c27a3b7a3Chris Lattner/// AddrLabelExpr - The GNU address of label extension, representing &&label. 23976481a57fefbf1a313ff439028470fe4c27a3b7a3Chris Lattnerclass AddrLabelExpr : public Expr { 23985f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation AmpAmpLoc, LabelLoc; 23995f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer LabelStmt *Label; 24005f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 24016481a57fefbf1a313ff439028470fe4c27a3b7a3Chris Lattner AddrLabelExpr(SourceLocation AALoc, SourceLocation LLoc, LabelStmt *L, 24026481a57fefbf1a313ff439028470fe4c27a3b7a3Chris Lattner QualType t) 24032333f7727f97018d6742e1e0938133bcfad967abEli Friedman : Expr(AddrLabelExprClass, t, false, false), 24042333f7727f97018d6742e1e0938133bcfad967abEli Friedman AmpAmpLoc(AALoc), LabelLoc(LLoc), Label(L) {} 24051eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 24067d5c2f241c74e5f8d9ec492e8f9f268e5e9ae41fDouglas Gregor /// \brief Build an empty address of a label expression. 24071eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump explicit AddrLabelExpr(EmptyShell Empty) 24087d5c2f241c74e5f8d9ec492e8f9f268e5e9ae41fDouglas Gregor : Expr(AddrLabelExprClass, Empty) { } 24097d5c2f241c74e5f8d9ec492e8f9f268e5e9ae41fDouglas Gregor 24107d5c2f241c74e5f8d9ec492e8f9f268e5e9ae41fDouglas Gregor SourceLocation getAmpAmpLoc() const { return AmpAmpLoc; } 24117d5c2f241c74e5f8d9ec492e8f9f268e5e9ae41fDouglas Gregor void setAmpAmpLoc(SourceLocation L) { AmpAmpLoc = L; } 24127d5c2f241c74e5f8d9ec492e8f9f268e5e9ae41fDouglas Gregor SourceLocation getLabelLoc() const { return LabelLoc; } 24137d5c2f241c74e5f8d9ec492e8f9f268e5e9ae41fDouglas Gregor void setLabelLoc(SourceLocation L) { LabelLoc = L; } 24147d5c2f241c74e5f8d9ec492e8f9f268e5e9ae41fDouglas Gregor 24155f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer virtual SourceRange getSourceRange() const { 24165f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return SourceRange(AmpAmpLoc, LabelLoc); 24175f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 24181eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 24195f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer LabelStmt *getLabel() const { return Label; } 24207d5c2f241c74e5f8d9ec492e8f9f268e5e9ae41fDouglas Gregor void setLabel(LabelStmt *S) { Label = S; } 24217d5c2f241c74e5f8d9ec492e8f9f268e5e9ae41fDouglas Gregor 24225f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const Stmt *T) { 24231eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == AddrLabelExprClass; 24245f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 24256481a57fefbf1a313ff439028470fe4c27a3b7a3Chris Lattner static bool classof(const AddrLabelExpr *) { return true; } 24261eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 24271237c673c07f9d827129ba02720108816abde562Ted Kremenek // Iterators 24281237c673c07f9d827129ba02720108816abde562Ted Kremenek virtual child_iterator child_begin(); 24291237c673c07f9d827129ba02720108816abde562Ted Kremenek virtual child_iterator child_end(); 24305f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 2431ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner 2432ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner/// StmtExpr - This is the GNU Statement Expression extension: ({int X=4; X;}). 2433ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner/// The StmtExpr contains a single CompoundStmt node, which it evaluates and 2434ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner/// takes the value of the last subexpression. 2435ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattnerclass StmtExpr : public Expr { 24365549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Stmt *SubStmt; 2437ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner SourceLocation LParenLoc, RParenLoc; 2438ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattnerpublic: 24392333f7727f97018d6742e1e0938133bcfad967abEli Friedman // FIXME: Does type-dependence need to be computed differently? 2440d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroff StmtExpr(CompoundStmt *substmt, QualType T, 2441d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroff SourceLocation lp, SourceLocation rp) : 24422333f7727f97018d6742e1e0938133bcfad967abEli Friedman Expr(StmtExprClass, T, T->isDependentType(), false), 24432333f7727f97018d6742e1e0938133bcfad967abEli Friedman SubStmt(substmt), LParenLoc(lp), RParenLoc(rp) { } 24441eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 24456a2dd55b0b3ae376d449a4b07bbb6b2d30b26330Douglas Gregor /// \brief Build an empty statement expression. 24466a2dd55b0b3ae376d449a4b07bbb6b2d30b26330Douglas Gregor explicit StmtExpr(EmptyShell Empty) : Expr(StmtExprClass, Empty) { } 24476a2dd55b0b3ae376d449a4b07bbb6b2d30b26330Douglas Gregor 24485549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek CompoundStmt *getSubStmt() { return cast<CompoundStmt>(SubStmt); } 24495549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek const CompoundStmt *getSubStmt() const { return cast<CompoundStmt>(SubStmt); } 24506a2dd55b0b3ae376d449a4b07bbb6b2d30b26330Douglas Gregor void setSubStmt(CompoundStmt *S) { SubStmt = S; } 24516a2dd55b0b3ae376d449a4b07bbb6b2d30b26330Douglas Gregor 2452ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner virtual SourceRange getSourceRange() const { 2453ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner return SourceRange(LParenLoc, RParenLoc); 2454ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner } 24551eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2456026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner SourceLocation getLParenLoc() const { return LParenLoc; } 24576a2dd55b0b3ae376d449a4b07bbb6b2d30b26330Douglas Gregor void setLParenLoc(SourceLocation L) { LParenLoc = L; } 2458026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner SourceLocation getRParenLoc() const { return RParenLoc; } 24596a2dd55b0b3ae376d449a4b07bbb6b2d30b26330Douglas Gregor void setRParenLoc(SourceLocation L) { RParenLoc = L; } 24601eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2461ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner static bool classof(const Stmt *T) { 24621eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == StmtExprClass; 2463ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner } 2464ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner static bool classof(const StmtExpr *) { return true; } 24651eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 24661237c673c07f9d827129ba02720108816abde562Ted Kremenek // Iterators 24671237c673c07f9d827129ba02720108816abde562Ted Kremenek virtual child_iterator child_begin(); 24681237c673c07f9d827129ba02720108816abde562Ted Kremenek virtual child_iterator child_end(); 2469ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner}; 2470ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner 2471dc241b42c7588f99027b035a09b71557a6db219eDouglas Gregor/// TypesCompatibleExpr - GNU builtin-in function __builtin_types_compatible_p. 2472d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroff/// This AST node represents a function that returns 1 if two *types* (not 2473d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroff/// expressions) are compatible. The result of this built-in function can be 2474d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroff/// used in integer constant expressions. 2475d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroffclass TypesCompatibleExpr : public Expr { 24763fcb73dae91be42b071cf0dde9222b7ec362146dAbramo Bagnara TypeSourceInfo *TInfo1; 24773fcb73dae91be42b071cf0dde9222b7ec362146dAbramo Bagnara TypeSourceInfo *TInfo2; 2478363bcff47df2fda3cfcfcd994b7888157df58c43Steve Naroff SourceLocation BuiltinLoc, RParenLoc; 2479d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroffpublic: 24801eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump TypesCompatibleExpr(QualType ReturnType, SourceLocation BLoc, 24813fcb73dae91be42b071cf0dde9222b7ec362146dAbramo Bagnara TypeSourceInfo *tinfo1, TypeSourceInfo *tinfo2, 24823fcb73dae91be42b071cf0dde9222b7ec362146dAbramo Bagnara SourceLocation RP) : 24832333f7727f97018d6742e1e0938133bcfad967abEli Friedman Expr(TypesCompatibleExprClass, ReturnType, false, false), 24843fcb73dae91be42b071cf0dde9222b7ec362146dAbramo Bagnara TInfo1(tinfo1), TInfo2(tinfo2), BuiltinLoc(BLoc), RParenLoc(RP) {} 2485d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroff 248644cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor /// \brief Build an empty __builtin_type_compatible_p expression. 248744cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor explicit TypesCompatibleExpr(EmptyShell Empty) 248844cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor : Expr(TypesCompatibleExprClass, Empty) { } 248944cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor 24903fcb73dae91be42b071cf0dde9222b7ec362146dAbramo Bagnara TypeSourceInfo *getArgTInfo1() const { return TInfo1; } 24913fcb73dae91be42b071cf0dde9222b7ec362146dAbramo Bagnara void setArgTInfo1(TypeSourceInfo *TInfo) { TInfo1 = TInfo; } 24923fcb73dae91be42b071cf0dde9222b7ec362146dAbramo Bagnara TypeSourceInfo *getArgTInfo2() const { return TInfo2; } 24933fcb73dae91be42b071cf0dde9222b7ec362146dAbramo Bagnara void setArgTInfo2(TypeSourceInfo *TInfo) { TInfo2 = TInfo; } 24943fcb73dae91be42b071cf0dde9222b7ec362146dAbramo Bagnara 24953fcb73dae91be42b071cf0dde9222b7ec362146dAbramo Bagnara QualType getArgType1() const { return TInfo1->getType(); } 24963fcb73dae91be42b071cf0dde9222b7ec362146dAbramo Bagnara QualType getArgType2() const { return TInfo2->getType(); } 24971eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 249844cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor SourceLocation getBuiltinLoc() const { return BuiltinLoc; } 249944cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor void setBuiltinLoc(SourceLocation L) { BuiltinLoc = L; } 25001eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 250144cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor SourceLocation getRParenLoc() const { return RParenLoc; } 250244cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor void setRParenLoc(SourceLocation L) { RParenLoc = L; } 25031eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2504d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroff virtual SourceRange getSourceRange() const { 2505363bcff47df2fda3cfcfcd994b7888157df58c43Steve Naroff return SourceRange(BuiltinLoc, RParenLoc); 2506d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroff } 2507d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroff static bool classof(const Stmt *T) { 25081eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == TypesCompatibleExprClass; 2509d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroff } 2510d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroff static bool classof(const TypesCompatibleExpr *) { return true; } 25111eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 25121237c673c07f9d827129ba02720108816abde562Ted Kremenek // Iterators 25131237c673c07f9d827129ba02720108816abde562Ted Kremenek virtual child_iterator child_begin(); 25141237c673c07f9d827129ba02720108816abde562Ted Kremenek virtual child_iterator child_end(); 2515d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroff}; 2516d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroff 2517d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman/// ShuffleVectorExpr - clang-specific builtin-in function 2518d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman/// __builtin_shufflevector. 2519d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman/// This AST node represents a operator that does a constant 2520d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman/// shuffle, similar to LLVM's shufflevector instruction. It takes 2521d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman/// two vectors and a variable number of constant indices, 2522d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman/// and returns the appropriately shuffled vector. 2523d38617c8a50f9729c254ab76cd359af797c6739bEli Friedmanclass ShuffleVectorExpr : public Expr { 2524d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman SourceLocation BuiltinLoc, RParenLoc; 2525d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman 2526d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman // SubExprs - the list of values passed to the __builtin_shufflevector 2527d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman // function. The first two are vectors, and the rest are constant 2528d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman // indices. The number of values in this list is always 2529d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman // 2+the number of indices in the vector type. 25305549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Stmt **SubExprs; 2531d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman unsigned NumExprs; 2532d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman 2533d38617c8a50f9729c254ab76cd359af797c6739bEli Friedmanpublic: 25342333f7727f97018d6742e1e0938133bcfad967abEli Friedman // FIXME: Can a shufflevector be value-dependent? Does type-dependence need 25352333f7727f97018d6742e1e0938133bcfad967abEli Friedman // to be computed differently? 2536a88dc3079bedf70a5cfc39791727e43a10383006Nate Begeman ShuffleVectorExpr(ASTContext &C, Expr **args, unsigned nexpr, 25371eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump QualType Type, SourceLocation BLoc, 25381eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump SourceLocation RP) : 25392333f7727f97018d6742e1e0938133bcfad967abEli Friedman Expr(ShuffleVectorExprClass, Type, Type->isDependentType(), false), 25402333f7727f97018d6742e1e0938133bcfad967abEli Friedman BuiltinLoc(BLoc), RParenLoc(RP), NumExprs(nexpr) { 25411eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2542a88dc3079bedf70a5cfc39791727e43a10383006Nate Begeman SubExprs = new (C) Stmt*[nexpr]; 2543d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman for (unsigned i = 0; i < nexpr; i++) 2544d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman SubExprs[i] = args[i]; 2545d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman } 254694cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor 254794cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor /// \brief Build an empty vector-shuffle expression. 25481eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump explicit ShuffleVectorExpr(EmptyShell Empty) 254994cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor : Expr(ShuffleVectorExprClass, Empty), SubExprs(0) { } 255094cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor 255194cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor SourceLocation getBuiltinLoc() const { return BuiltinLoc; } 255294cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor void setBuiltinLoc(SourceLocation L) { BuiltinLoc = L; } 25531eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 255494cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor SourceLocation getRParenLoc() const { return RParenLoc; } 255594cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor void setRParenLoc(SourceLocation L) { RParenLoc = L; } 255694cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor 2557d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman virtual SourceRange getSourceRange() const { 2558d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman return SourceRange(BuiltinLoc, RParenLoc); 2559d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman } 2560d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman static bool classof(const Stmt *T) { 25611eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == ShuffleVectorExprClass; 2562d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman } 2563d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman static bool classof(const ShuffleVectorExpr *) { return true; } 25641eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2565d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman /// getNumSubExprs - Return the size of the SubExprs array. This includes the 2566d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman /// constant expression, the actual arguments passed in, and the function 2567d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman /// pointers. 2568d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman unsigned getNumSubExprs() const { return NumExprs; } 25691eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2570d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman /// getExpr - Return the Expr at the specified index. 2571d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman Expr *getExpr(unsigned Index) { 2572d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman assert((Index < NumExprs) && "Arg access out of range!"); 25735549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek return cast<Expr>(SubExprs[Index]); 2574d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman } 2575d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman const Expr *getExpr(unsigned Index) const { 2576d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman assert((Index < NumExprs) && "Arg access out of range!"); 25775549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek return cast<Expr>(SubExprs[Index]); 2578d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman } 25791eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2580888376a2bbcfc2f047902249f8455918e2489ae1Nate Begeman void setExprs(ASTContext &C, Expr ** Exprs, unsigned NumExprs); 258194cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor 2582dde8c94873976632e3ada4d8d067e1e244184d51Eli Friedman unsigned getShuffleMaskIdx(ASTContext &Ctx, unsigned N) { 2583dde8c94873976632e3ada4d8d067e1e244184d51Eli Friedman assert((N < NumExprs - 2) && "Shuffle idx out of range!"); 25849a901bb63990574ff0bcc12ff851d7a71cff8ddbEli Friedman return getExpr(N+2)->EvaluateAsInt(Ctx).getZExtValue(); 2585d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman } 25861eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2587d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman // Iterators 2588d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman virtual child_iterator child_begin(); 2589d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman virtual child_iterator child_end(); 2590d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman}; 2591d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman 2592d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff/// ChooseExpr - GNU builtin-in function __builtin_choose_expr. 25931eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// This AST node is similar to the conditional operator (?:) in C, with 2594d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff/// the following exceptions: 25957976932a1c256d447316ffac58e9821417725e34Eli Friedman/// - the test expression must be a integer constant expression. 25967976932a1c256d447316ffac58e9821417725e34Eli Friedman/// - the expression returned acts like the chosen subexpression in every 25977976932a1c256d447316ffac58e9821417725e34Eli Friedman/// visible way: the type is the same as that of the chosen subexpression, 25987976932a1c256d447316ffac58e9821417725e34Eli Friedman/// and all predicates (whether it's an l-value, whether it's an integer 25997976932a1c256d447316ffac58e9821417725e34Eli Friedman/// constant expression, etc.) return the same result as for the chosen 26007976932a1c256d447316ffac58e9821417725e34Eli Friedman/// sub-expression. 2601d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroffclass ChooseExpr : public Expr { 26021237c673c07f9d827129ba02720108816abde562Ted Kremenek enum { COND, LHS, RHS, END_EXPR }; 26035549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Stmt* SubExprs[END_EXPR]; // Left/Middle/Right hand sides. 2604d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff SourceLocation BuiltinLoc, RParenLoc; 2605d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroffpublic: 2606d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff ChooseExpr(SourceLocation BLoc, Expr *cond, Expr *lhs, Expr *rhs, QualType t, 2607ce94049b69f75b44c18584fe79cd238978b6b0d5Douglas Gregor SourceLocation RP, bool TypeDependent, bool ValueDependent) 2608ce94049b69f75b44c18584fe79cd238978b6b0d5Douglas Gregor : Expr(ChooseExprClass, t, TypeDependent, ValueDependent), 26091237c673c07f9d827129ba02720108816abde562Ted Kremenek BuiltinLoc(BLoc), RParenLoc(RP) { 26101237c673c07f9d827129ba02720108816abde562Ted Kremenek SubExprs[COND] = cond; 26111237c673c07f9d827129ba02720108816abde562Ted Kremenek SubExprs[LHS] = lhs; 26121237c673c07f9d827129ba02720108816abde562Ted Kremenek SubExprs[RHS] = rhs; 26131eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump } 26147976932a1c256d447316ffac58e9821417725e34Eli Friedman 261544cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor /// \brief Build an empty __builtin_choose_expr. 261644cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor explicit ChooseExpr(EmptyShell Empty) : Expr(ChooseExprClass, Empty) { } 261744cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor 26187976932a1c256d447316ffac58e9821417725e34Eli Friedman /// isConditionTrue - Return whether the condition is true (i.e. not 26197976932a1c256d447316ffac58e9821417725e34Eli Friedman /// equal to zero). 262027437caadea35f84d550cd29f024fcf3ea240eecChris Lattner bool isConditionTrue(ASTContext &C) const; 26217976932a1c256d447316ffac58e9821417725e34Eli Friedman 26227976932a1c256d447316ffac58e9821417725e34Eli Friedman /// getChosenSubExpr - Return the subexpression chosen according to the 26237976932a1c256d447316ffac58e9821417725e34Eli Friedman /// condition. 26247976932a1c256d447316ffac58e9821417725e34Eli Friedman Expr *getChosenSubExpr(ASTContext &C) const { 26257976932a1c256d447316ffac58e9821417725e34Eli Friedman return isConditionTrue(C) ? getLHS() : getRHS(); 26267976932a1c256d447316ffac58e9821417725e34Eli Friedman } 26277976932a1c256d447316ffac58e9821417725e34Eli Friedman 26285549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getCond() const { return cast<Expr>(SubExprs[COND]); } 262944cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor void setCond(Expr *E) { SubExprs[COND] = E; } 26305549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getLHS() const { return cast<Expr>(SubExprs[LHS]); } 263144cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor void setLHS(Expr *E) { SubExprs[LHS] = E; } 26325549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getRHS() const { return cast<Expr>(SubExprs[RHS]); } 263344cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor void setRHS(Expr *E) { SubExprs[RHS] = E; } 263444cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor 263544cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor SourceLocation getBuiltinLoc() const { return BuiltinLoc; } 263644cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor void setBuiltinLoc(SourceLocation L) { BuiltinLoc = L; } 26371eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 263844cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor SourceLocation getRParenLoc() const { return RParenLoc; } 263944cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor void setRParenLoc(SourceLocation L) { RParenLoc = L; } 26401237c673c07f9d827129ba02720108816abde562Ted Kremenek 2641d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff virtual SourceRange getSourceRange() const { 2642d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff return SourceRange(BuiltinLoc, RParenLoc); 2643d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff } 2644d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff static bool classof(const Stmt *T) { 26451eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == ChooseExprClass; 2646d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff } 2647d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff static bool classof(const ChooseExpr *) { return true; } 26481eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 26491237c673c07f9d827129ba02720108816abde562Ted Kremenek // Iterators 26501237c673c07f9d827129ba02720108816abde562Ted Kremenek virtual child_iterator child_begin(); 26511237c673c07f9d827129ba02720108816abde562Ted Kremenek virtual child_iterator child_end(); 2652d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff}; 2653d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff 26542d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor/// GNUNullExpr - Implements the GNU __null extension, which is a name 26552d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor/// for a null pointer constant that has integral type (e.g., int or 26562d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor/// long) and is the same size and alignment as a pointer. The __null 26572d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor/// extension is typically only used by system headers, which define 26582d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor/// NULL as __null in C++ rather than using 0 (which is an integer 26592d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor/// that may not match the size of a pointer). 26602d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregorclass GNUNullExpr : public Expr { 26612d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor /// TokenLoc - The location of the __null keyword. 26622d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor SourceLocation TokenLoc; 26632d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor 26642d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregorpublic: 26651eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump GNUNullExpr(QualType Ty, SourceLocation Loc) 26662333f7727f97018d6742e1e0938133bcfad967abEli Friedman : Expr(GNUNullExprClass, Ty, false, false), TokenLoc(Loc) { } 26672d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor 266844cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor /// \brief Build an empty GNU __null expression. 266944cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor explicit GNUNullExpr(EmptyShell Empty) : Expr(GNUNullExprClass, Empty) { } 267044cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor 26712d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor /// getTokenLocation - The location of the __null token. 26722d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor SourceLocation getTokenLocation() const { return TokenLoc; } 267344cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor void setTokenLocation(SourceLocation L) { TokenLoc = L; } 26742d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor 26752d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor virtual SourceRange getSourceRange() const { 26762d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor return SourceRange(TokenLoc); 26772d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor } 26782d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor static bool classof(const Stmt *T) { 26791eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == GNUNullExprClass; 26802d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor } 26812d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor static bool classof(const GNUNullExpr *) { return true; } 26821eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 26832d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor // Iterators 26842d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor virtual child_iterator child_begin(); 26852d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor virtual child_iterator child_end(); 26862d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor}; 26872d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor 268874626d6ef2e194fcc911e071556660ff331eb4a8Zhongxing Xu/// VAArgExpr, used for the builtin function __builtin_va_arg. 26897c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlssonclass VAArgExpr : public Expr { 26905549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Stmt *Val; 26912cad900202561cdda18ea6cc51ddbf3e20e3c23aAbramo Bagnara TypeSourceInfo *TInfo; 26927c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson SourceLocation BuiltinLoc, RParenLoc; 26937c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlssonpublic: 26942cad900202561cdda18ea6cc51ddbf3e20e3c23aAbramo Bagnara VAArgExpr(SourceLocation BLoc, Expr* e, TypeSourceInfo *TInfo, 26952cad900202561cdda18ea6cc51ddbf3e20e3c23aAbramo Bagnara SourceLocation RPLoc, QualType t) 26962333f7727f97018d6742e1e0938133bcfad967abEli Friedman : Expr(VAArgExprClass, t, t->isDependentType(), false), 26972cad900202561cdda18ea6cc51ddbf3e20e3c23aAbramo Bagnara Val(e), TInfo(TInfo), 26987c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson BuiltinLoc(BLoc), 26997c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson RParenLoc(RPLoc) { } 27001eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 270174626d6ef2e194fcc911e071556660ff331eb4a8Zhongxing Xu /// \brief Create an empty __builtin_va_arg expression. 2702d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor explicit VAArgExpr(EmptyShell Empty) : Expr(VAArgExprClass, Empty) { } 2703d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor 27045549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek const Expr *getSubExpr() const { return cast<Expr>(Val); } 27055549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getSubExpr() { return cast<Expr>(Val); } 2706d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor void setSubExpr(Expr *E) { Val = E; } 2707d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor 27082cad900202561cdda18ea6cc51ddbf3e20e3c23aAbramo Bagnara TypeSourceInfo *getWrittenTypeInfo() const { return TInfo; } 27092cad900202561cdda18ea6cc51ddbf3e20e3c23aAbramo Bagnara void setWrittenTypeInfo(TypeSourceInfo *TI) { TInfo = TI; } 27102cad900202561cdda18ea6cc51ddbf3e20e3c23aAbramo Bagnara 2711d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor SourceLocation getBuiltinLoc() const { return BuiltinLoc; } 2712d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor void setBuiltinLoc(SourceLocation L) { BuiltinLoc = L; } 27131eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2714d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor SourceLocation getRParenLoc() const { return RParenLoc; } 2715d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor void setRParenLoc(SourceLocation L) { RParenLoc = L; } 2716d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor 27177c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson virtual SourceRange getSourceRange() const { 27187c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson return SourceRange(BuiltinLoc, RParenLoc); 27191eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump } 27207c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson static bool classof(const Stmt *T) { 27217c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson return T->getStmtClass() == VAArgExprClass; 27227c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson } 27237c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson static bool classof(const VAArgExpr *) { return true; } 27241eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 27257c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson // Iterators 27267c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson virtual child_iterator child_begin(); 27271eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump virtual child_iterator child_end(); 27287c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson}; 27291eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 27304c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// @brief Describes an C or C++ initializer list. 27314c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// 27324c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// InitListExpr describes an initializer list, which can be used to 27334c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// initialize objects of different types, including 27344c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// struct/class/union types, arrays, and vectors. For example: 27354c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// 27364c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// @code 27374c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// struct foo x = { 1, { 2, 3 } }; 27384c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// @endcode 2739196ef51bc4d008ec1c69851fb3b0f8d036065931Chris Lattner/// 27404c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// Prior to semantic analysis, an initializer list will represent the 27414c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// initializer list as written by the user, but will have the 27424c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// placeholder type "void". This initializer list is called the 27434c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// syntactic form of the initializer, and may contain C99 designated 27444c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// initializers (represented as DesignatedInitExprs), initializations 27454c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// of subobject members without explicit braces, and so on. Clients 27464c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// interested in the original syntax of the initializer list should 27474c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// use the syntactic form of the initializer list. 2748196ef51bc4d008ec1c69851fb3b0f8d036065931Chris Lattner/// 27494c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// After semantic analysis, the initializer list will represent the 27504c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// semantic form of the initializer, where the initializations of all 27514c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// subobjects are made explicit with nested InitListExpr nodes and 27524c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// C99 designators have been eliminated by placing the designated 27534c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// initializations into the subobject they initialize. Additionally, 27544c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// any "holes" in the initialization, where no initializer has been 27554c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// specified for a particular subobject, will be replaced with 27563498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor/// implicitly-generated ImplicitValueInitExpr expressions that 27574c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// value-initialize the subobjects. Note, however, that the 27584c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// initializer lists may still have fewer initializers than there are 27594c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// elements to initialize within the object. 2760196ef51bc4d008ec1c69851fb3b0f8d036065931Chris Lattner/// 27614c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// Given the semantic form of the initializer list, one can retrieve 27624c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// the original syntactic form of that initializer list (if it 27634c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// exists) using getSyntacticForm(). Since many initializer lists 27644c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// have the same syntactic and semantic forms, getSyntacticForm() may 27654c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// return NULL, indicating that the current initializer list also 27664c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// serves as its syntactic form. 276766b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlssonclass InitListExpr : public Expr { 2768ba7bc5584b8d46f4e8deb3a9d363256908fa86eaTed Kremenek // FIXME: Eliminate this vector in favor of ASTContext allocation 2769709210feee317b8d6690dd1d15c2b74cfe55e261Ted Kremenek typedef ASTVector<Stmt *> InitExprsTy; 2770709210feee317b8d6690dd1d15c2b74cfe55e261Ted Kremenek InitExprsTy InitExprs; 277166b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson SourceLocation LBraceLoc, RBraceLoc; 27721eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 27734c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// Contains the initializer list that describes the syntactic form 27744c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// written in the source code. 27754c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor InitListExpr *SyntacticForm; 27764c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor 27770bb76897bedb8b747efc6523efb432fc24966118Douglas Gregor /// If this initializer list initializes a union, specifies which 27780bb76897bedb8b747efc6523efb432fc24966118Douglas Gregor /// field within the union will be initialized. 27790bb76897bedb8b747efc6523efb432fc24966118Douglas Gregor FieldDecl *UnionFieldInit; 27800bb76897bedb8b747efc6523efb432fc24966118Douglas Gregor 2781a9c878086036de36482cc21e35a33cabe9699b0aDouglas Gregor /// Whether this initializer list originally had a GNU array-range 2782a9c878086036de36482cc21e35a33cabe9699b0aDouglas Gregor /// designator in it. This is a temporary marker used by CodeGen. 2783a9c878086036de36482cc21e35a33cabe9699b0aDouglas Gregor bool HadArrayRangeDesignator; 2784a9c878086036de36482cc21e35a33cabe9699b0aDouglas Gregor 278566b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlssonpublic: 2786709210feee317b8d6690dd1d15c2b74cfe55e261Ted Kremenek InitListExpr(ASTContext &C, SourceLocation lbraceloc, 2787709210feee317b8d6690dd1d15c2b74cfe55e261Ted Kremenek Expr **initexprs, unsigned numinits, 2788ba7bc5584b8d46f4e8deb3a9d363256908fa86eaTed Kremenek SourceLocation rbraceloc); 2789d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor 2790d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor /// \brief Build an empty initializer list. 2791709210feee317b8d6690dd1d15c2b74cfe55e261Ted Kremenek explicit InitListExpr(ASTContext &C, EmptyShell Empty) 2792709210feee317b8d6690dd1d15c2b74cfe55e261Ted Kremenek : Expr(InitListExprClass, Empty), InitExprs(C) { } 27931eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2794ba7bc5584b8d46f4e8deb3a9d363256908fa86eaTed Kremenek unsigned getNumInits() const { return InitExprs.size(); } 27951eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 27961eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump const Expr* getInit(unsigned Init) const { 2797c5ae899b4bbf65488445316c63168079177db0edSteve Naroff assert(Init < getNumInits() && "Initializer access out of range!"); 27984c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor return cast_or_null<Expr>(InitExprs[Init]); 279966b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson } 28001eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 28011eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump Expr* getInit(unsigned Init) { 2802c5ae899b4bbf65488445316c63168079177db0edSteve Naroff assert(Init < getNumInits() && "Initializer access out of range!"); 28034c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor return cast_or_null<Expr>(InitExprs[Init]); 280466b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson } 28051eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 28061eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump void setInit(unsigned Init, Expr *expr) { 2807c5ae899b4bbf65488445316c63168079177db0edSteve Naroff assert(Init < getNumInits() && "Initializer access out of range!"); 28089e8925e72f53a9e2c4633b6b48e965ed01702fe4Steve Naroff InitExprs[Init] = expr; 28099e8925e72f53a9e2c4633b6b48e965ed01702fe4Steve Naroff } 2810c5ae899b4bbf65488445316c63168079177db0edSteve Naroff 2811fa2192042f223b5122a9e17719930f77634fd31fDouglas Gregor /// \brief Reserve space for some number of initializers. 2812709210feee317b8d6690dd1d15c2b74cfe55e261Ted Kremenek void reserveInits(ASTContext &C, unsigned NumInits); 28131eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 28144c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// @brief Specify the number of initializers 28154c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// 28164c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// If there are more than @p NumInits initializers, the remaining 28174c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// initializers will be destroyed. If there are fewer than @p 28184c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// NumInits initializers, NULL expressions will be added for the 28194c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// unknown initializers. 28204c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor void resizeInits(ASTContext &Context, unsigned NumInits); 28214c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor 28224c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// @brief Updates the initializer at index @p Init with the new 28234c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// expression @p expr, and returns the old expression at that 28244c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// location. 28254c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// 28264c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// When @p Init is out of range for this initializer list, the 28274c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// initializer list will be extended with NULL expressions to 28284c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// accomodate the new entry. 2829709210feee317b8d6690dd1d15c2b74cfe55e261Ted Kremenek Expr *updateInit(ASTContext &C, unsigned Init, Expr *expr); 2830c5ae899b4bbf65488445316c63168079177db0edSteve Naroff 28310bb76897bedb8b747efc6523efb432fc24966118Douglas Gregor /// \brief If this initializes a union, specifies which field in the 28320bb76897bedb8b747efc6523efb432fc24966118Douglas Gregor /// union to initialize. 28330bb76897bedb8b747efc6523efb432fc24966118Douglas Gregor /// 28340bb76897bedb8b747efc6523efb432fc24966118Douglas Gregor /// Typically, this field is the first named field within the 28350bb76897bedb8b747efc6523efb432fc24966118Douglas Gregor /// union. However, a designated initializer can specify the 28360bb76897bedb8b747efc6523efb432fc24966118Douglas Gregor /// initialization of a different field within the union. 28370bb76897bedb8b747efc6523efb432fc24966118Douglas Gregor FieldDecl *getInitializedFieldInUnion() { return UnionFieldInit; } 28380bb76897bedb8b747efc6523efb432fc24966118Douglas Gregor void setInitializedFieldInUnion(FieldDecl *FD) { UnionFieldInit = FD; } 28390bb76897bedb8b747efc6523efb432fc24966118Douglas Gregor 2840c5ae899b4bbf65488445316c63168079177db0edSteve Naroff // Explicit InitListExpr's originate from source code (and have valid source 2841c5ae899b4bbf65488445316c63168079177db0edSteve Naroff // locations). Implicit InitListExpr's are created by the semantic analyzer. 2842b3eef68111ffc220e449be96da1747998c057790Douglas Gregor bool isExplicit() { 2843b3eef68111ffc220e449be96da1747998c057790Douglas Gregor return LBraceLoc.isValid() && RBraceLoc.isValid(); 2844b3eef68111ffc220e449be96da1747998c057790Douglas Gregor } 28451eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2846d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor SourceLocation getLBraceLoc() const { return LBraceLoc; } 2847d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor void setLBraceLoc(SourceLocation Loc) { LBraceLoc = Loc; } 2848d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor SourceLocation getRBraceLoc() const { return RBraceLoc; } 284987fd703e097c27d63479cb83b687d4000a22bbb1Douglas Gregor void setRBraceLoc(SourceLocation Loc) { RBraceLoc = Loc; } 285087fd703e097c27d63479cb83b687d4000a22bbb1Douglas Gregor 28514c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// @brief Retrieve the initializer list that describes the 28524c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// syntactic form of the initializer. 28534c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// 28541eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /// 28554c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor InitListExpr *getSyntacticForm() const { return SyntacticForm; } 28564c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor void setSyntacticForm(InitListExpr *Init) { SyntacticForm = Init; } 28574c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor 2858a9c878086036de36482cc21e35a33cabe9699b0aDouglas Gregor bool hadArrayRangeDesignator() const { return HadArrayRangeDesignator; } 28591eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump void sawArrayRangeDesignator(bool ARD = true) { 2860d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor HadArrayRangeDesignator = ARD; 2861a9c878086036de36482cc21e35a33cabe9699b0aDouglas Gregor } 2862a9c878086036de36482cc21e35a33cabe9699b0aDouglas Gregor 286366b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson virtual SourceRange getSourceRange() const { 286466b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson return SourceRange(LBraceLoc, RBraceLoc); 28651eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump } 286666b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson static bool classof(const Stmt *T) { 28671eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == InitListExprClass; 286866b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson } 286966b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson static bool classof(const InitListExpr *) { return true; } 28701eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 287166b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson // Iterators 287266b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson virtual child_iterator child_begin(); 287366b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson virtual child_iterator child_end(); 28741eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2875709210feee317b8d6690dd1d15c2b74cfe55e261Ted Kremenek typedef InitExprsTy::iterator iterator; 28768111a6150cb68a238d55a31f9f4f90869a43f988Zhongxing Xu typedef InitExprsTy::const_iterator const_iterator; 2877709210feee317b8d6690dd1d15c2b74cfe55e261Ted Kremenek typedef InitExprsTy::reverse_iterator reverse_iterator; 28788111a6150cb68a238d55a31f9f4f90869a43f988Zhongxing Xu typedef InitExprsTy::const_reverse_iterator const_reverse_iterator; 28791eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2880ba7bc5584b8d46f4e8deb3a9d363256908fa86eaTed Kremenek iterator begin() { return InitExprs.begin(); } 28818111a6150cb68a238d55a31f9f4f90869a43f988Zhongxing Xu const_iterator begin() const { return InitExprs.begin(); } 2882ba7bc5584b8d46f4e8deb3a9d363256908fa86eaTed Kremenek iterator end() { return InitExprs.end(); } 28838111a6150cb68a238d55a31f9f4f90869a43f988Zhongxing Xu const_iterator end() const { return InitExprs.end(); } 2884ba7bc5584b8d46f4e8deb3a9d363256908fa86eaTed Kremenek reverse_iterator rbegin() { return InitExprs.rbegin(); } 28858111a6150cb68a238d55a31f9f4f90869a43f988Zhongxing Xu const_reverse_iterator rbegin() const { return InitExprs.rbegin(); } 2886ba7bc5584b8d46f4e8deb3a9d363256908fa86eaTed Kremenek reverse_iterator rend() { return InitExprs.rend(); } 28878111a6150cb68a238d55a31f9f4f90869a43f988Zhongxing Xu const_reverse_iterator rend() const { return InitExprs.rend(); } 288866b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson}; 288966b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson 289005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// @brief Represents a C99 designated initializer expression. 289105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// 289205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// A designated initializer expression (C99 6.7.8) contains one or 289305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// more designators (which can be field designators, array 289405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// designators, or GNU array-range designators) followed by an 289505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// expression that initializes the field or element(s) that the 289605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// designators refer to. For example, given: 28971eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// 289805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// @code 289905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// struct point { 290005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// double x; 290105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// double y; 290205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// }; 290305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// struct point ptarray[10] = { [2].y = 1.0, [2].x = 2.0, [0].x = 1.0 }; 290405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// @endcode 290505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// 290605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// The InitListExpr contains three DesignatedInitExprs, the first of 290705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// which covers @c [2].y=1.0. This DesignatedInitExpr will have two 290805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// designators, one array designator for @c [2] followed by one field 290905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// designator for @c .y. The initalization expression will be 1.0. 291005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregorclass DesignatedInitExpr : public Expr { 2911ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregorpublic: 2912ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor /// \brief Forward declaration of the Designator class. 2913ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor class Designator; 2914ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor 2915ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregorprivate: 291605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// The location of the '=' or ':' prior to the actual initializer 291705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// expression. 291805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor SourceLocation EqualOrColonLoc; 291905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 2920eeae8f072748affce25ab4064982626361293390Douglas Gregor /// Whether this designated initializer used the GNU deprecated 292105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// syntax rather than the C99 '=' syntax. 2922eeae8f072748affce25ab4064982626361293390Douglas Gregor bool GNUSyntax : 1; 292305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 292405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// The number of designators in this initializer expression. 292505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor unsigned NumDesignators : 15; 292605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 2927ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor /// \brief The designators in this designated initialization 2928ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor /// expression. 2929ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor Designator *Designators; 2930ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor 293105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// The number of subexpressions of this initializer expression, 293205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// which contains both the initializer and any additional 293305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// expressions used by array and array-range designators. 293405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor unsigned NumSubExprs : 16; 293505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 2936ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor 2937319d57f21600dd2c4d52ccc27bd12ce260b174e7Douglas Gregor DesignatedInitExpr(ASTContext &C, QualType Ty, unsigned NumDesignators, 2938ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor const Designator *Designators, 2939eeae8f072748affce25ab4064982626361293390Douglas Gregor SourceLocation EqualOrColonLoc, bool GNUSyntax, 29409ea62768fca25d829d80199cf4f8cf0f4dd39251Douglas Gregor Expr **IndexExprs, unsigned NumIndexExprs, 29419ea62768fca25d829d80199cf4f8cf0f4dd39251Douglas Gregor Expr *Init); 294205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 2943d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor explicit DesignatedInitExpr(unsigned NumSubExprs) 2944d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor : Expr(DesignatedInitExprClass, EmptyShell()), 2945d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor NumDesignators(0), Designators(0), NumSubExprs(NumSubExprs) { } 2946d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor 294705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregorpublic: 294805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// A field designator, e.g., ".x". 294905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor struct FieldDesignator { 295005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// Refers to the field that is being initialized. The low bit 295105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// of this field determines whether this is actually a pointer 295205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// to an IdentifierInfo (if 1) or a FieldDecl (if 0). When 295305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// initially constructed, a field designator will store an 295405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// IdentifierInfo*. After semantic analysis has resolved that 295505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// name, the field designator will instead store a FieldDecl*. 295605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor uintptr_t NameOrField; 29571eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 295805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// The location of the '.' in the designated initializer. 295905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor unsigned DotLoc; 29601eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 296105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// The location of the field name in the designated initializer. 296205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor unsigned FieldLoc; 296305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor }; 296405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 296505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// An array or GNU array-range designator, e.g., "[9]" or "[10..15]". 296605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor struct ArrayOrRangeDesignator { 296705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// Location of the first index expression within the designated 296805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// initializer expression's list of subexpressions. 296905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor unsigned Index; 297005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// The location of the '[' starting the array range designator. 297105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor unsigned LBracketLoc; 297205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// The location of the ellipsis separating the start and end 297305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// indices. Only valid for GNU array-range designators. 297405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor unsigned EllipsisLoc; 297505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// The location of the ']' terminating the array range designator. 29761eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump unsigned RBracketLoc; 297705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor }; 297805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 297905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// @brief Represents a single C99 designator. 298005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// 298105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// @todo This class is infuriatingly similar to clang::Designator, 298205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// but minor differences (storing indices vs. storing pointers) 298305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// keep us from reusing it. Try harder, later, to rectify these 298405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// differences. 298505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor class Designator { 298605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// @brief The kind of designator this describes. 298705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor enum { 298805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor FieldDesignator, 298905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor ArrayDesignator, 299005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor ArrayRangeDesignator 299105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } Kind; 299205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 299305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor union { 299405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// A field designator, e.g., ".x". 299505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor struct FieldDesignator Field; 299605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// An array or GNU array-range designator, e.g., "[9]" or "[10..15]". 299705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor struct ArrayOrRangeDesignator ArrayOrRange; 299805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor }; 299905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor friend class DesignatedInitExpr; 300005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 300105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor public: 3002ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor Designator() {} 3003ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor 300405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// @brief Initializes a field designator. 30051eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump Designator(const IdentifierInfo *FieldName, SourceLocation DotLoc, 30061eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump SourceLocation FieldLoc) 300705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor : Kind(FieldDesignator) { 300805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor Field.NameOrField = reinterpret_cast<uintptr_t>(FieldName) | 0x01; 300905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor Field.DotLoc = DotLoc.getRawEncoding(); 301005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor Field.FieldLoc = FieldLoc.getRawEncoding(); 301105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } 301205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 301305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// @brief Initializes an array designator. 30141eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump Designator(unsigned Index, SourceLocation LBracketLoc, 301505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor SourceLocation RBracketLoc) 301605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor : Kind(ArrayDesignator) { 301705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor ArrayOrRange.Index = Index; 301805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor ArrayOrRange.LBracketLoc = LBracketLoc.getRawEncoding(); 301905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor ArrayOrRange.EllipsisLoc = SourceLocation().getRawEncoding(); 302005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor ArrayOrRange.RBracketLoc = RBracketLoc.getRawEncoding(); 302105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } 302205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 302305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// @brief Initializes a GNU array-range designator. 30241eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump Designator(unsigned Index, SourceLocation LBracketLoc, 302505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor SourceLocation EllipsisLoc, SourceLocation RBracketLoc) 302605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor : Kind(ArrayRangeDesignator) { 302705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor ArrayOrRange.Index = Index; 302805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor ArrayOrRange.LBracketLoc = LBracketLoc.getRawEncoding(); 302905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor ArrayOrRange.EllipsisLoc = EllipsisLoc.getRawEncoding(); 303005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor ArrayOrRange.RBracketLoc = RBracketLoc.getRawEncoding(); 303105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } 303205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 303305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor bool isFieldDesignator() const { return Kind == FieldDesignator; } 303405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor bool isArrayDesignator() const { return Kind == ArrayDesignator; } 303505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor bool isArrayRangeDesignator() const { return Kind == ArrayRangeDesignator; } 303605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 303705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor IdentifierInfo * getFieldName(); 303805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 303905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor FieldDecl *getField() { 304005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor assert(Kind == FieldDesignator && "Only valid on a field designator"); 304105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor if (Field.NameOrField & 0x01) 304205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor return 0; 304305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor else 304405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor return reinterpret_cast<FieldDecl *>(Field.NameOrField); 304505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } 304605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 304705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor void setField(FieldDecl *FD) { 304805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor assert(Kind == FieldDesignator && "Only valid on a field designator"); 304905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor Field.NameOrField = reinterpret_cast<uintptr_t>(FD); 305005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } 305105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 305287f55cf59e82f246d8605733e9300d0c5f6830a6Douglas Gregor SourceLocation getDotLoc() const { 305387f55cf59e82f246d8605733e9300d0c5f6830a6Douglas Gregor assert(Kind == FieldDesignator && "Only valid on a field designator"); 305487f55cf59e82f246d8605733e9300d0c5f6830a6Douglas Gregor return SourceLocation::getFromRawEncoding(Field.DotLoc); 305587f55cf59e82f246d8605733e9300d0c5f6830a6Douglas Gregor } 305687f55cf59e82f246d8605733e9300d0c5f6830a6Douglas Gregor 305705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor SourceLocation getFieldLoc() const { 305805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor assert(Kind == FieldDesignator && "Only valid on a field designator"); 305905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor return SourceLocation::getFromRawEncoding(Field.FieldLoc); 306005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } 306105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 306205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor SourceLocation getLBracketLoc() const { 306305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor assert((Kind == ArrayDesignator || Kind == ArrayRangeDesignator) && 306405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor "Only valid on an array or array-range designator"); 306505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor return SourceLocation::getFromRawEncoding(ArrayOrRange.LBracketLoc); 306605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } 306705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 306805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor SourceLocation getRBracketLoc() const { 306905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor assert((Kind == ArrayDesignator || Kind == ArrayRangeDesignator) && 307005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor "Only valid on an array or array-range designator"); 307105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor return SourceLocation::getFromRawEncoding(ArrayOrRange.RBracketLoc); 307205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } 307305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 307405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor SourceLocation getEllipsisLoc() const { 307505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor assert(Kind == ArrayRangeDesignator && 307605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor "Only valid on an array-range designator"); 307705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor return SourceLocation::getFromRawEncoding(ArrayOrRange.EllipsisLoc); 307805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } 30794c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor 3080d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor unsigned getFirstExprIndex() const { 3081d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor assert((Kind == ArrayDesignator || Kind == ArrayRangeDesignator) && 3082d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor "Only valid on an array or array-range designator"); 3083d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor return ArrayOrRange.Index; 3084d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor } 3085d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor 30864c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor SourceLocation getStartLocation() const { 30874c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor if (Kind == FieldDesignator) 30884c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor return getDotLoc().isInvalid()? getFieldLoc() : getDotLoc(); 30894c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor else 30904c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor return getLBracketLoc(); 30914c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor } 309205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor }; 309305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 30941eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static DesignatedInitExpr *Create(ASTContext &C, Designator *Designators, 309505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor unsigned NumDesignators, 309605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor Expr **IndexExprs, unsigned NumIndexExprs, 309705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor SourceLocation EqualOrColonLoc, 3098eeae8f072748affce25ab4064982626361293390Douglas Gregor bool GNUSyntax, Expr *Init); 309905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 3100d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor static DesignatedInitExpr *CreateEmpty(ASTContext &C, unsigned NumIndexExprs); 3101d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor 310205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// @brief Returns the number of designators in this initializer. 310305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor unsigned size() const { return NumDesignators; } 310405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 310505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor // Iterator access to the designators. 310605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor typedef Designator* designators_iterator; 3107ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor designators_iterator designators_begin() { return Designators; } 31081eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump designators_iterator designators_end() { 31091eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return Designators + NumDesignators; 3110ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor } 311105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 3112711997184366d584c9c437102cae1e9d9927b986Douglas Gregor Designator *getDesignator(unsigned Idx) { return &designators_begin()[Idx]; } 3113711997184366d584c9c437102cae1e9d9927b986Douglas Gregor 3114c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt void setDesignators(ASTContext &C, const Designator *Desigs, 3115319d57f21600dd2c4d52ccc27bd12ce260b174e7Douglas Gregor unsigned NumDesigs); 3116d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor 311705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor Expr *getArrayIndex(const Designator& D); 311805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor Expr *getArrayRangeStart(const Designator& D); 311905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor Expr *getArrayRangeEnd(const Designator& D); 312005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 312105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// @brief Retrieve the location of the '=' that precedes the 312205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// initializer value itself, if present. 312305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor SourceLocation getEqualOrColonLoc() const { return EqualOrColonLoc; } 3124d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor void setEqualOrColonLoc(SourceLocation L) { EqualOrColonLoc = L; } 312505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 312605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// @brief Determines whether this designated initializer used the 3127eeae8f072748affce25ab4064982626361293390Douglas Gregor /// deprecated GNU syntax for designated initializers. 3128eeae8f072748affce25ab4064982626361293390Douglas Gregor bool usesGNUSyntax() const { return GNUSyntax; } 3129d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor void setGNUSyntax(bool GNU) { GNUSyntax = GNU; } 313005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 313105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// @brief Retrieve the initializer value. 31321eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump Expr *getInit() const { 313305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor return cast<Expr>(*const_cast<DesignatedInitExpr*>(this)->child_begin()); 313405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } 313505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 313605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor void setInit(Expr *init) { 313705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor *child_begin() = init; 313805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } 313905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 3140d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor /// \brief Retrieve the total number of subexpressions in this 3141d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor /// designated initializer expression, including the actual 3142d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor /// initialized value and any expressions that occur within array 3143d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor /// and array-range designators. 3144d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor unsigned getNumSubExprs() const { return NumSubExprs; } 3145d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor 3146d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor Expr *getSubExpr(unsigned Idx) { 3147d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor assert(Idx < NumSubExprs && "Subscript out of range"); 3148d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor char* Ptr = static_cast<char*>(static_cast<void *>(this)); 3149d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor Ptr += sizeof(DesignatedInitExpr); 3150d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor return reinterpret_cast<Expr**>(reinterpret_cast<void**>(Ptr))[Idx]; 3151d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor } 3152d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor 3153d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor void setSubExpr(unsigned Idx, Expr *E) { 3154d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor assert(Idx < NumSubExprs && "Subscript out of range"); 3155d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor char* Ptr = static_cast<char*>(static_cast<void *>(this)); 3156d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor Ptr += sizeof(DesignatedInitExpr); 3157d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor reinterpret_cast<Expr**>(reinterpret_cast<void**>(Ptr))[Idx] = E; 3158d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor } 3159d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor 3160ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor /// \brief Replaces the designator at index @p Idx with the series 3161ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor /// of designators in [First, Last). 3162319d57f21600dd2c4d52ccc27bd12ce260b174e7Douglas Gregor void ExpandDesignator(ASTContext &C, unsigned Idx, const Designator *First, 3163ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor const Designator *Last); 3164ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor 316505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor virtual SourceRange getSourceRange() const; 316605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 316705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor static bool classof(const Stmt *T) { 31681eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == DesignatedInitExprClass; 316905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } 317005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor static bool classof(const DesignatedInitExpr *) { return true; } 317105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 317205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor // Iterators 317305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor virtual child_iterator child_begin(); 31741eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump virtual child_iterator child_end(); 31753498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor}; 31763498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor 31773498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor/// \brief Represents an implicitly-generated value initialization of 31783498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor/// an object of a given type. 31793498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor/// 31801a51b4a11b7db25cac2134249711ecaaf9d1c0a8Douglas Gregor/// Implicit value initializations occur within semantic initializer 31811a51b4a11b7db25cac2134249711ecaaf9d1c0a8Douglas Gregor/// list expressions (InitListExpr) as placeholders for subobject 31823498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor/// initializations not explicitly specified by the user. 31831a51b4a11b7db25cac2134249711ecaaf9d1c0a8Douglas Gregor/// 31841a51b4a11b7db25cac2134249711ecaaf9d1c0a8Douglas Gregor/// \see InitListExpr 31851eb4433ac451dc16f4133a88af2d002ac26c58efMike Stumpclass ImplicitValueInitExpr : public Expr { 31863498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregorpublic: 31871eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump explicit ImplicitValueInitExpr(QualType ty) 31882333f7727f97018d6742e1e0938133bcfad967abEli Friedman : Expr(ImplicitValueInitExprClass, ty, false, false) { } 31893498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor 3190d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor /// \brief Construct an empty implicit value initialization. 3191d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor explicit ImplicitValueInitExpr(EmptyShell Empty) 3192d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor : Expr(ImplicitValueInitExprClass, Empty) { } 3193d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor 31941eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 31953498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor return T->getStmtClass() == ImplicitValueInitExprClass; 31963498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor } 31973498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor static bool classof(const ImplicitValueInitExpr *) { return true; } 31983498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor 31993498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor virtual SourceRange getSourceRange() const { 32003498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor return SourceRange(); 32013498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor } 32023498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor 32033498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor // Iterators 32043498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor virtual child_iterator child_begin(); 32051eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump virtual child_iterator child_end(); 320605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor}; 320705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 32082ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman 32092ef13e5abef0570a9f567b4671367275c05d4d34Nate Begemanclass ParenListExpr : public Expr { 32102ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman Stmt **Exprs; 32112ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman unsigned NumExprs; 32122ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman SourceLocation LParenLoc, RParenLoc; 32132ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman 32142ef13e5abef0570a9f567b4671367275c05d4d34Nate Begemanpublic: 32151eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump ParenListExpr(ASTContext& C, SourceLocation lparenloc, Expr **exprs, 32162ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman unsigned numexprs, SourceLocation rparenloc); 32172ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman 32182ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman /// \brief Build an empty paren list. 321937bdfe284ad365f753741d1d89c078c148b3f4afArgyrios Kyrtzidis explicit ParenListExpr(EmptyShell Empty) : Expr(ParenListExprClass, Empty) { } 32201eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 32212ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman unsigned getNumExprs() const { return NumExprs; } 32221eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 32231eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump const Expr* getExpr(unsigned Init) const { 32242ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman assert(Init < getNumExprs() && "Initializer access out of range!"); 32252ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman return cast_or_null<Expr>(Exprs[Init]); 32262ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman } 32271eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 32281eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump Expr* getExpr(unsigned Init) { 32292ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman assert(Init < getNumExprs() && "Initializer access out of range!"); 32302ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman return cast_or_null<Expr>(Exprs[Init]); 32312ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman } 32322ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman 323383ddad3ab513f5d73698cf9fbeb4ed3f011bc3b9Douglas Gregor Expr **getExprs() { return reinterpret_cast<Expr **>(Exprs); } 32341eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 32352ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman SourceLocation getLParenLoc() const { return LParenLoc; } 32362ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman SourceLocation getRParenLoc() const { return RParenLoc; } 32372ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman 32382ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman virtual SourceRange getSourceRange() const { 32392ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman return SourceRange(LParenLoc, RParenLoc); 32401eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump } 32412ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman static bool classof(const Stmt *T) { 32421eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == ParenListExprClass; 32432ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman } 32442ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman static bool classof(const ParenListExpr *) { return true; } 32451eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 32462ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman // Iterators 32472ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman virtual child_iterator child_begin(); 32482ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman virtual child_iterator child_end(); 324937bdfe284ad365f753741d1d89c078c148b3f4afArgyrios Kyrtzidis 325060adf4acf40b72227740bf966fb87eebddff3f37Sebastian Redl friend class ASTStmtReader; 32513397c5570369f19b2d6c52e898f708d75ceede1fSebastian Redl friend class ASTStmtWriter; 32522ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman}; 32532ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman 32541eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 32554eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff//===----------------------------------------------------------------------===// 32564eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff// Clang Extensions 32574eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff//===----------------------------------------------------------------------===// 32584eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff 3259a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner 3260a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner/// ExtVectorElementExpr - This represents access to specific elements of a 3261a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner/// vector, and may occur on the left hand side or right hand side. For example 3262a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner/// the following is legal: "V.xy = V.zw" if V is a 4 element extended vector. 3263a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner/// 326473525de7fd9bdd534382dc89a24f1f76db3e04b9Chris Lattner/// Note that the base may have either vector or pointer to vector type, just 326573525de7fd9bdd534382dc89a24f1f76db3e04b9Chris Lattner/// like a struct field reference. 326673525de7fd9bdd534382dc89a24f1f76db3e04b9Chris Lattner/// 3267a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattnerclass ExtVectorElementExpr : public Expr { 3268a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner Stmt *Base; 3269d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor IdentifierInfo *Accessor; 3270a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner SourceLocation AccessorLoc; 3271a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattnerpublic: 3272a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner ExtVectorElementExpr(QualType ty, Expr *base, IdentifierInfo &accessor, 3273a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner SourceLocation loc) 32742333f7727f97018d6742e1e0938133bcfad967abEli Friedman : Expr(ExtVectorElementExprClass, ty, base->isTypeDependent(), 32752333f7727f97018d6742e1e0938133bcfad967abEli Friedman base->isValueDependent()), 3276d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor Base(base), Accessor(&accessor), AccessorLoc(loc) {} 32771eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3278d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor /// \brief Build an empty vector element expression. 3279d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor explicit ExtVectorElementExpr(EmptyShell Empty) 3280d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor : Expr(ExtVectorElementExprClass, Empty) { } 3281d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor 3282a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner const Expr *getBase() const { return cast<Expr>(Base); } 3283a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner Expr *getBase() { return cast<Expr>(Base); } 3284d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor void setBase(Expr *E) { Base = E; } 3285d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor 3286d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor IdentifierInfo &getAccessor() const { return *Accessor; } 3287d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor void setAccessor(IdentifierInfo *II) { Accessor = II; } 3288d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor 3289d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor SourceLocation getAccessorLoc() const { return AccessorLoc; } 3290d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor void setAccessorLoc(SourceLocation L) { AccessorLoc = L; } 3291d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor 3292a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner /// getNumElements - Get the number of components being selected. 3293a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner unsigned getNumElements() const; 32941eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3295a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner /// containsDuplicateElements - Return true if any element access is 3296a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner /// repeated. 3297a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner bool containsDuplicateElements() const; 32981eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3299a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner /// getEncodedElementAccess - Encode the elements accessed into an llvm 3300a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner /// aggregate Constant of ConstantInt(s). 3301a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner void getEncodedElementAccess(llvm::SmallVectorImpl<unsigned> &Elts) const; 33021eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3303a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner virtual SourceRange getSourceRange() const { 3304a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner return SourceRange(getBase()->getLocStart(), AccessorLoc); 3305a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner } 33061eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 33072140e904dbe53657339cb5b1cc13de563ca0d1fcChris Lattner /// isArrow - Return true if the base expression is a pointer to vector, 33082140e904dbe53657339cb5b1cc13de563ca0d1fcChris Lattner /// return false if the base expression is a vector. 33092140e904dbe53657339cb5b1cc13de563ca0d1fcChris Lattner bool isArrow() const; 33101eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 33111eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 33121eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == ExtVectorElementExprClass; 3313a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner } 3314a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner static bool classof(const ExtVectorElementExpr *) { return true; } 33151eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3316a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner // Iterators 3317a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner virtual child_iterator child_begin(); 3318a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner virtual child_iterator child_end(); 3319a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner}; 3320a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner 3321a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner 332256ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroff/// BlockExpr - Adaptor class for mixing a BlockDecl with expressions. 33239c3c902835ef7d37300463ad47176ec21a67dc8bSteve Naroff/// ^{ statement-body } or ^(int arg1, float arg2){ statement-body } 33244eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroffclass BlockExpr : public Expr { 332556ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroffprotected: 332656ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroff BlockDecl *TheBlock; 3327b83d287bc7f47d36fb0751a481e2ef9308b37252Mike Stump bool HasBlockDeclRefExprs; 33284eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroffpublic: 3329b83d287bc7f47d36fb0751a481e2ef9308b37252Mike Stump BlockExpr(BlockDecl *BD, QualType ty, bool hasBlockDeclRefExprs) 33302333f7727f97018d6742e1e0938133bcfad967abEli Friedman : Expr(BlockExprClass, ty, ty->isDependentType(), false), 3331b83d287bc7f47d36fb0751a481e2ef9308b37252Mike Stump TheBlock(BD), HasBlockDeclRefExprs(hasBlockDeclRefExprs) {} 33329c3c902835ef7d37300463ad47176ec21a67dc8bSteve Naroff 333384af7c27cdc615ff917a501d61256b4049383c97Douglas Gregor /// \brief Build an empty block expression. 333484af7c27cdc615ff917a501d61256b4049383c97Douglas Gregor explicit BlockExpr(EmptyShell Empty) : Expr(BlockExprClass, Empty) { } 333584af7c27cdc615ff917a501d61256b4049383c97Douglas Gregor 3336d5cab5435371b8cc74a9e05ebd40b5995ebad149Anders Carlsson const BlockDecl *getBlockDecl() const { return TheBlock; } 333756ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroff BlockDecl *getBlockDecl() { return TheBlock; } 333884af7c27cdc615ff917a501d61256b4049383c97Douglas Gregor void setBlockDecl(BlockDecl *BD) { TheBlock = BD; } 333984af7c27cdc615ff917a501d61256b4049383c97Douglas Gregor 334056ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroff // Convenience functions for probing the underlying BlockDecl. 334156ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroff SourceLocation getCaretLocation() const; 334256ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroff const Stmt *getBody() const; 334356ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroff Stmt *getBody(); 33449c3c902835ef7d37300463ad47176ec21a67dc8bSteve Naroff 33459c3c902835ef7d37300463ad47176ec21a67dc8bSteve Naroff virtual SourceRange getSourceRange() const { 334656ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroff return SourceRange(getCaretLocation(), getBody()->getLocEnd()); 33479c3c902835ef7d37300463ad47176ec21a67dc8bSteve Naroff } 33489c3c902835ef7d37300463ad47176ec21a67dc8bSteve Naroff 334956ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroff /// getFunctionType - Return the underlying function type for this block. 335056ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroff const FunctionType *getFunctionType() const; 335156ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroff 3352b83d287bc7f47d36fb0751a481e2ef9308b37252Mike Stump /// hasBlockDeclRefExprs - Return true iff the block has BlockDeclRefExpr 33535b54b88c4082bb81b8b341b622fda9a85cbd5fadChris Lattner /// inside of the block that reference values outside the block. 3354b83d287bc7f47d36fb0751a481e2ef9308b37252Mike Stump bool hasBlockDeclRefExprs() const { return HasBlockDeclRefExprs; } 335584af7c27cdc615ff917a501d61256b4049383c97Douglas Gregor void setHasBlockDeclRefExprs(bool BDRE) { HasBlockDeclRefExprs = BDRE; } 3356b83d287bc7f47d36fb0751a481e2ef9308b37252Mike Stump 33571eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 33589c3c902835ef7d37300463ad47176ec21a67dc8bSteve Naroff return T->getStmtClass() == BlockExprClass; 33594eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff } 33604eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff static bool classof(const BlockExpr *) { return true; } 33611eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 33624eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff // Iterators 33634eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff virtual child_iterator child_begin(); 33644eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff virtual child_iterator child_end(); 33654eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff}; 33661eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 33674eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff/// BlockDeclRefExpr - A reference to a declared variable, function, 33684eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff/// enum, etc. 33694eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroffclass BlockDeclRefExpr : public Expr { 33701eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump ValueDecl *D; 33714eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff SourceLocation Loc; 33727d5c74ecbbd8719436c071f38657bc8e97ee4a24Fariborz Jahanian bool IsByRef : 1; 33737d5c74ecbbd8719436c071f38657bc8e97ee4a24Fariborz Jahanian bool ConstQualAdded : 1; 337489f9d3a7651d1225f3f56ae3387c83b98a26da00Fariborz Jahanian Stmt *CopyConstructorVal; 33754eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroffpublic: 33762333f7727f97018d6742e1e0938133bcfad967abEli Friedman // FIXME: Fix type/value dependence! 33771eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump BlockDeclRefExpr(ValueDecl *d, QualType t, SourceLocation l, bool ByRef, 337889f9d3a7651d1225f3f56ae3387c83b98a26da00Fariborz Jahanian bool constAdded = false, 337984ca008a462b515f63871253f494d53c9190363cFariborz Jahanian Stmt *copyConstructorVal = 0) 338084ca008a462b515f63871253f494d53c9190363cFariborz Jahanian : Expr(BlockDeclRefExprClass, t, (!t.isNull() && t->isDependentType()),false), 338152bc56a296b11b4fc6bf5ddf4ded5262f6484bdbFariborz Jahanian D(d), Loc(l), IsByRef(ByRef), 338289f9d3a7651d1225f3f56ae3387c83b98a26da00Fariborz Jahanian ConstQualAdded(constAdded), CopyConstructorVal(copyConstructorVal) {} 338394cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor 338494cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor // \brief Build an empty reference to a declared variable in a 338594cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor // block. 338694cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor explicit BlockDeclRefExpr(EmptyShell Empty) 338794cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor : Expr(BlockDeclRefExprClass, Empty) { } 33881eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 33894eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff ValueDecl *getDecl() { return D; } 33904eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff const ValueDecl *getDecl() const { return D; } 339194cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor void setDecl(ValueDecl *VD) { D = VD; } 339294cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor 339394cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor SourceLocation getLocation() const { return Loc; } 339494cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor void setLocation(SourceLocation L) { Loc = L; } 339594cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor 33964eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff virtual SourceRange getSourceRange() const { return SourceRange(Loc); } 33971eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 33984eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff bool isByRef() const { return IsByRef; } 339994cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor void setByRef(bool BR) { IsByRef = BR; } 34001eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 34017d5c74ecbbd8719436c071f38657bc8e97ee4a24Fariborz Jahanian bool isConstQualAdded() const { return ConstQualAdded; } 34027d5c74ecbbd8719436c071f38657bc8e97ee4a24Fariborz Jahanian void setConstQualAdded(bool C) { ConstQualAdded = C; } 340389f9d3a7651d1225f3f56ae3387c83b98a26da00Fariborz Jahanian 340489f9d3a7651d1225f3f56ae3387c83b98a26da00Fariborz Jahanian const Expr *getCopyConstructorExpr() const 340589f9d3a7651d1225f3f56ae3387c83b98a26da00Fariborz Jahanian { return cast_or_null<Expr>(CopyConstructorVal); } 340689f9d3a7651d1225f3f56ae3387c83b98a26da00Fariborz Jahanian Expr *getCopyConstructorExpr() 340789f9d3a7651d1225f3f56ae3387c83b98a26da00Fariborz Jahanian { return cast_or_null<Expr>(CopyConstructorVal); } 340889f9d3a7651d1225f3f56ae3387c83b98a26da00Fariborz Jahanian void setCopyConstructorExpr(Expr *E) { CopyConstructorVal = E; } 340994cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor 34101eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 34111eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == BlockDeclRefExprClass; 34124eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff } 34134eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff static bool classof(const BlockDeclRefExpr *) { return true; } 34141eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 34154eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff // Iterators 34164eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff virtual child_iterator child_begin(); 34174eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff virtual child_iterator child_end(); 34184eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff}; 34194eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff 34205f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} // end namespace clang 34215f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 34225f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer#endif 3423