Expr.h revision 558d2abc7f9fd6801cc7677200992313ae90b5d8
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 }; 256369e51fa400aeb5835bb9af4634ea516c11429a7Sebastian 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 272369e51fa400aeb5835bb9af4634ea516c11429a7Sebastian 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 411369e51fa400aeb5835bb9af4634ea516c11429a7Sebastian Redl /// \brief Result type of CanThrow(). 412369e51fa400aeb5835bb9af4634ea516c11429a7Sebastian Redl enum CanThrowResult { 413369e51fa400aeb5835bb9af4634ea516c11429a7Sebastian Redl CT_Cannot, 414369e51fa400aeb5835bb9af4634ea516c11429a7Sebastian Redl CT_Dependent, 415369e51fa400aeb5835bb9af4634ea516c11429a7Sebastian Redl CT_Can 416369e51fa400aeb5835bb9af4634ea516c11429a7Sebastian Redl }; 417369e51fa400aeb5835bb9af4634ea516c11429a7Sebastian Redl /// \brief Test if this expression, if evaluated, might throw, according to 418369e51fa400aeb5835bb9af4634ea516c11429a7Sebastian Redl /// the rules of C++ [expr.unary.noexcept]. 419369e51fa400aeb5835bb9af4634ea516c11429a7Sebastian Redl CanThrowResult CanThrow(ASTContext &C) const; 420369e51fa400aeb5835bb9af4634ea516c11429a7Sebastian Redl 4214e99a5fc3b203397a91136c6e695e405fb8fc606Ted Kremenek /// IgnoreParens - Ignore parentheses. If this Expr is a ParenExpr, return 4221eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /// its subexpression. If that subexpression is also a ParenExpr, 4234e99a5fc3b203397a91136c6e695e405fb8fc606Ted Kremenek /// then this method recursively returns its subexpression, and so forth. 4244e99a5fc3b203397a91136c6e695e405fb8fc606Ted Kremenek /// Otherwise, the method returns the current Expr. 4252b334bb3126a67895813e49e6228dad4aec0b4d6Chris Lattner Expr *IgnoreParens(); 42656f349400c5932a196509c0480ff6f99a9a0b48fChris Lattner 42756f349400c5932a196509c0480ff6f99a9a0b48fChris Lattner /// IgnoreParenCasts - Ignore parentheses and casts. Strip off any ParenExpr 42827c8dc06f65d7abcf6a7e7f64a7960c9a150ca01Douglas Gregor /// or CastExprs, returning their operand. 42956f349400c5932a196509c0480ff6f99a9a0b48fChris Lattner Expr *IgnoreParenCasts(); 4301eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4312fc46bf1a9bc31d50f82de37c70ea257d3cded27John McCall /// IgnoreParenImpCasts - Ignore parentheses and implicit casts. Strip off any 4322fc46bf1a9bc31d50f82de37c70ea257d3cded27John McCall /// ParenExpr or ImplicitCastExprs, returning their operand. 4332fc46bf1a9bc31d50f82de37c70ea257d3cded27John McCall Expr *IgnoreParenImpCasts(); 4342fc46bf1a9bc31d50f82de37c70ea257d3cded27John McCall 4354d3175c1e5a44251ea97b0c81e80f060629d9c08Ted Kremenek const Expr *IgnoreParenImpCasts() const { 4364d3175c1e5a44251ea97b0c81e80f060629d9c08Ted Kremenek return const_cast<Expr*>(this)->IgnoreParenImpCasts(); 4374d3175c1e5a44251ea97b0c81e80f060629d9c08Ted Kremenek } 4384d3175c1e5a44251ea97b0c81e80f060629d9c08Ted Kremenek 439ecdd84147c0765caa999ddc22dde25b42712bb4dChris Lattner /// IgnoreParenNoopCasts - Ignore parentheses and casts that do not change the 440ecdd84147c0765caa999ddc22dde25b42712bb4dChris Lattner /// value (including ptr->int casts of the same size). Strip off any 441ecdd84147c0765caa999ddc22dde25b42712bb4dChris Lattner /// ParenExpr or CastExprs, returning their operand. 442ecdd84147c0765caa999ddc22dde25b42712bb4dChris Lattner Expr *IgnoreParenNoopCasts(ASTContext &Ctx); 4431eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4446eef519fc8a97bb7ca6066f23d35e10f06b2c1b5Douglas Gregor /// \brief Determine whether this expression is a default function argument. 4456eef519fc8a97bb7ca6066f23d35e10f06b2c1b5Douglas Gregor /// 4466eef519fc8a97bb7ca6066f23d35e10f06b2c1b5Douglas Gregor /// Default arguments are implicitly generated in the abstract syntax tree 447c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt /// by semantic analysis for function calls, object constructions, etc. in 4486eef519fc8a97bb7ca6066f23d35e10f06b2c1b5Douglas Gregor /// C++. Default arguments are represented by \c CXXDefaultArgExpr nodes; 4496eef519fc8a97bb7ca6066f23d35e10f06b2c1b5Douglas Gregor /// this routine also looks through any implicit casts to determine whether 4506eef519fc8a97bb7ca6066f23d35e10f06b2c1b5Douglas Gregor /// the expression is a default argument. 4516eef519fc8a97bb7ca6066f23d35e10f06b2c1b5Douglas Gregor bool isDefaultArgument() const; 452c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 453558d2abc7f9fd6801cc7677200992313ae90b5d8John McCall /// \brief Determine whether the result of this expression is a 454558d2abc7f9fd6801cc7677200992313ae90b5d8John McCall /// temporary object of the given class type. 455558d2abc7f9fd6801cc7677200992313ae90b5d8John McCall bool isTemporaryObject(ASTContext &Ctx, const CXXRecordDecl *TempTy) const; 4562f59979a7cc7929f53c9984423b0abeb83113442Douglas Gregor 4572b334bb3126a67895813e49e6228dad4aec0b4d6Chris Lattner const Expr *IgnoreParens() const { 4584e99a5fc3b203397a91136c6e695e405fb8fc606Ted Kremenek return const_cast<Expr*>(this)->IgnoreParens(); 4594e99a5fc3b203397a91136c6e695e405fb8fc606Ted Kremenek } 46056f349400c5932a196509c0480ff6f99a9a0b48fChris Lattner const Expr *IgnoreParenCasts() const { 46156f349400c5932a196509c0480ff6f99a9a0b48fChris Lattner return const_cast<Expr*>(this)->IgnoreParenCasts(); 46256f349400c5932a196509c0480ff6f99a9a0b48fChris Lattner } 463ecdd84147c0765caa999ddc22dde25b42712bb4dChris Lattner const Expr *IgnoreParenNoopCasts(ASTContext &Ctx) const { 464ecdd84147c0765caa999ddc22dde25b42712bb4dChris Lattner return const_cast<Expr*>(this)->IgnoreParenNoopCasts(Ctx); 465ecdd84147c0765caa999ddc22dde25b42712bb4dChris Lattner } 4661eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 467898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor static bool hasAnyTypeDependentArguments(Expr** Exprs, unsigned NumExprs); 468898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor static bool hasAnyValueDependentArguments(Expr** Exprs, unsigned NumExprs); 469898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor 4701eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 4715f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return T->getStmtClass() >= firstExprConstant && 4721eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump T->getStmtClass() <= lastExprConstant; 4735f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 4745f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const Expr *) { return true; } 4755f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 4765f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 4771eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4785549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek//===----------------------------------------------------------------------===// 4795f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// Primary Expressions. 4805f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer//===----------------------------------------------------------------------===// 4815f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 482a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor/// \brief Represents the qualifier that may precede a C++ name, e.g., the 483a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor/// "std::" in "std::sort". 484a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregorstruct NameQualifier { 485a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// \brief The nested name specifier. 486a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor NestedNameSpecifier *NNS; 487c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 488a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// \brief The source range covered by the nested name specifier. 489a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor SourceRange Range; 490a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor}; 491a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor 492a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor/// \brief Represents an explicit template argument list in C++, e.g., 493a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor/// the "<int>" in "sort<int>". 494a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregorstruct ExplicitTemplateArgumentList { 495a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// \brief The source location of the left angle bracket ('<'); 496a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor SourceLocation LAngleLoc; 497c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 498a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// \brief The source location of the right angle bracket ('>'); 499a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor SourceLocation RAngleLoc; 500c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 501a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// \brief The number of template arguments in TemplateArgs. 502a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// The actual template arguments (if any) are stored after the 503a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// ExplicitTemplateArgumentList structure. 504a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor unsigned NumTemplateArgs; 505c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 506a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// \brief Retrieve the template arguments 507833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall TemplateArgumentLoc *getTemplateArgs() { 508833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall return reinterpret_cast<TemplateArgumentLoc *> (this + 1); 509a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor } 510c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 511a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// \brief Retrieve the template arguments 512833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall const TemplateArgumentLoc *getTemplateArgs() const { 513833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall return reinterpret_cast<const TemplateArgumentLoc *> (this + 1); 514a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor } 515d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall 516d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall void initializeFrom(const TemplateArgumentListInfo &List); 517d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall void copyInto(TemplateArgumentListInfo &List) const; 5188dfbd8b252ba4e6cf4b7a3422f6ef0ca21312dfeArgyrios Kyrtzidis static std::size_t sizeFor(unsigned NumTemplateArgs); 519d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall static std::size_t sizeFor(const TemplateArgumentListInfo &List); 520a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor}; 521c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 5225f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// DeclRefExpr - [C99 6.5.1p2] - A reference to a declared variable, function, 5235f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// enum, etc. 5245f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass DeclRefExpr : public Expr { 525a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor enum { 526c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt // Flag on DecoratedD that specifies when this declaration reference 527a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor // expression has a C++ nested-name-specifier. 528a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor HasQualifierFlag = 0x01, 529c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt // Flag on DecoratedD that specifies when this declaration reference 530a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor // expression has an explicit C++ template argument list. 531a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor HasExplicitTemplateArgumentListFlag = 0x02 532a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor }; 533c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 534c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt // DecoratedD - The declaration that we are referencing, plus two bits to 535a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor // indicate whether (1) the declaration's name was explicitly qualified and 536c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt // (2) the declaration's name was followed by an explicit template 537a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor // argument list. 538dbd872f273a8dbf22e089b3def6c09f0a460965dJohn McCall llvm::PointerIntPair<ValueDecl *, 2> DecoratedD; 5392577743c5650c646fb705df01403707e94f2df04Abramo Bagnara 540a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor // Loc - The location of the declaration name itself. 5415f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation Loc; 5429e922b1663ecb95dc7eee03002fd66ed18fb3192Argyrios Kyrtzidis 5432577743c5650c646fb705df01403707e94f2df04Abramo Bagnara /// DNLoc - Provides source/type location info for the 5442577743c5650c646fb705df01403707e94f2df04Abramo Bagnara /// declaration name embedded in DecoratedD. 5452577743c5650c646fb705df01403707e94f2df04Abramo Bagnara DeclarationNameLoc DNLoc; 5462577743c5650c646fb705df01403707e94f2df04Abramo Bagnara 547a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// \brief Retrieve the qualifier that preceded the declaration name, if any. 548a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor NameQualifier *getNameQualifier() { 5492cf719c3c3d805f630dfc6b1255e52647820888eSebastian Redl if ((DecoratedD.getInt() & HasQualifierFlag) == 0) 550a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor return 0; 551c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 552a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor return reinterpret_cast<NameQualifier *> (this + 1); 553a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor } 554c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 555a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// \brief Retrieve the qualifier that preceded the member name, if any. 556a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor const NameQualifier *getNameQualifier() const { 557a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor return const_cast<DeclRefExpr *>(this)->getNameQualifier(); 558a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor } 559096832c5ed5b9106fa177ebc148489760c3bc496John McCall 560a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor DeclRefExpr(NestedNameSpecifier *Qualifier, SourceRange QualifierRange, 561dbd872f273a8dbf22e089b3def6c09f0a460965dJohn McCall ValueDecl *D, SourceLocation NameLoc, 562d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall const TemplateArgumentListInfo *TemplateArgs, 5630da76df9218d7c27b471b0a4d83a5b29fe24e5b4Douglas Gregor QualType T); 564663e380d7b2de2bbf20e886e05371195bea9adc4Argyrios Kyrtzidis 5652577743c5650c646fb705df01403707e94f2df04Abramo Bagnara DeclRefExpr(NestedNameSpecifier *Qualifier, SourceRange QualifierRange, 5662577743c5650c646fb705df01403707e94f2df04Abramo Bagnara ValueDecl *D, const DeclarationNameInfo &NameInfo, 5672577743c5650c646fb705df01403707e94f2df04Abramo Bagnara const TemplateArgumentListInfo *TemplateArgs, 5682577743c5650c646fb705df01403707e94f2df04Abramo Bagnara QualType T); 5692577743c5650c646fb705df01403707e94f2df04Abramo Bagnara 570663e380d7b2de2bbf20e886e05371195bea9adc4Argyrios Kyrtzidis /// \brief Construct an empty declaration reference expression. 571663e380d7b2de2bbf20e886e05371195bea9adc4Argyrios Kyrtzidis explicit DeclRefExpr(EmptyShell Empty) 572663e380d7b2de2bbf20e886e05371195bea9adc4Argyrios Kyrtzidis : Expr(DeclRefExprClass, Empty) { } 573c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 5740da76df9218d7c27b471b0a4d83a5b29fe24e5b4Douglas Gregor /// \brief Computes the type- and value-dependence flags for this 5750da76df9218d7c27b471b0a4d83a5b29fe24e5b4Douglas Gregor /// declaration reference expression. 5760da76df9218d7c27b471b0a4d83a5b29fe24e5b4Douglas Gregor void computeDependence(); 5779e922b1663ecb95dc7eee03002fd66ed18fb3192Argyrios Kyrtzidis 5785f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 579dbd872f273a8dbf22e089b3def6c09f0a460965dJohn McCall DeclRefExpr(ValueDecl *d, QualType t, SourceLocation l) : 5800da76df9218d7c27b471b0a4d83a5b29fe24e5b4Douglas Gregor Expr(DeclRefExprClass, t, false, false), DecoratedD(d, 0), Loc(l) { 5810da76df9218d7c27b471b0a4d83a5b29fe24e5b4Douglas Gregor computeDependence(); 5820da76df9218d7c27b471b0a4d83a5b29fe24e5b4Douglas Gregor } 5831eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 584a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor static DeclRefExpr *Create(ASTContext &Context, 585a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor NestedNameSpecifier *Qualifier, 586a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor SourceRange QualifierRange, 587dbd872f273a8dbf22e089b3def6c09f0a460965dJohn McCall ValueDecl *D, 588a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor SourceLocation NameLoc, 5890da76df9218d7c27b471b0a4d83a5b29fe24e5b4Douglas Gregor QualType T, 5900da76df9218d7c27b471b0a4d83a5b29fe24e5b4Douglas Gregor const TemplateArgumentListInfo *TemplateArgs = 0); 591663e380d7b2de2bbf20e886e05371195bea9adc4Argyrios Kyrtzidis 5922577743c5650c646fb705df01403707e94f2df04Abramo Bagnara static DeclRefExpr *Create(ASTContext &Context, 5932577743c5650c646fb705df01403707e94f2df04Abramo Bagnara NestedNameSpecifier *Qualifier, 5942577743c5650c646fb705df01403707e94f2df04Abramo Bagnara SourceRange QualifierRange, 5952577743c5650c646fb705df01403707e94f2df04Abramo Bagnara ValueDecl *D, 5962577743c5650c646fb705df01403707e94f2df04Abramo Bagnara const DeclarationNameInfo &NameInfo, 5972577743c5650c646fb705df01403707e94f2df04Abramo Bagnara QualType T, 5982577743c5650c646fb705df01403707e94f2df04Abramo Bagnara const TemplateArgumentListInfo *TemplateArgs = 0); 5992577743c5650c646fb705df01403707e94f2df04Abramo Bagnara 600663e380d7b2de2bbf20e886e05371195bea9adc4Argyrios Kyrtzidis /// \brief Construct an empty declaration reference expression. 601663e380d7b2de2bbf20e886e05371195bea9adc4Argyrios Kyrtzidis static DeclRefExpr *CreateEmpty(ASTContext &Context, 602663e380d7b2de2bbf20e886e05371195bea9adc4Argyrios Kyrtzidis bool HasQualifier, unsigned NumTemplateArgs); 603c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 604dbd872f273a8dbf22e089b3def6c09f0a460965dJohn McCall ValueDecl *getDecl() { return DecoratedD.getPointer(); } 605dbd872f273a8dbf22e089b3def6c09f0a460965dJohn McCall const ValueDecl *getDecl() const { return DecoratedD.getPointer(); } 606dbd872f273a8dbf22e089b3def6c09f0a460965dJohn McCall void setDecl(ValueDecl *NewD) { DecoratedD.setPointer(NewD); } 607904eed3f6148758d39a2d3c88f3133274460d645Douglas Gregor 6082577743c5650c646fb705df01403707e94f2df04Abramo Bagnara DeclarationNameInfo getNameInfo() const { 6092577743c5650c646fb705df01403707e94f2df04Abramo Bagnara return DeclarationNameInfo(getDecl()->getDeclName(), Loc, DNLoc); 6102577743c5650c646fb705df01403707e94f2df04Abramo Bagnara } 6112577743c5650c646fb705df01403707e94f2df04Abramo Bagnara 6129e922b1663ecb95dc7eee03002fd66ed18fb3192Argyrios Kyrtzidis SourceLocation getLocation() const { return Loc; } 6130b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor void setLocation(SourceLocation L) { Loc = L; } 614a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor virtual SourceRange getSourceRange() const; 6151eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 616a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// \brief Determine whether this declaration reference was preceded by a 617a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// C++ nested-name-specifier, e.g., \c N::foo. 618a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor bool hasQualifier() const { return DecoratedD.getInt() & HasQualifierFlag; } 619c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 620a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// \brief If the name was qualified, retrieves the source range of 621a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// the nested-name-specifier that precedes the name. Otherwise, 622a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// returns an empty source range. 623a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor SourceRange getQualifierRange() const { 624a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor if (!hasQualifier()) 625a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor return SourceRange(); 626c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 627a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor return getNameQualifier()->Range; 628a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor } 629c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 630c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt /// \brief If the name was qualified, retrieves the nested-name-specifier 631a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// that precedes the name. Otherwise, returns NULL. 632a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor NestedNameSpecifier *getQualifier() const { 633a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor if (!hasQualifier()) 634a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor return 0; 635c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 636a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor return getNameQualifier()->NNS; 637a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor } 638c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 639096832c5ed5b9106fa177ebc148489760c3bc496John McCall bool hasExplicitTemplateArgs() const { 640096832c5ed5b9106fa177ebc148489760c3bc496John McCall return (DecoratedD.getInt() & HasExplicitTemplateArgumentListFlag); 641096832c5ed5b9106fa177ebc148489760c3bc496John McCall } 642096832c5ed5b9106fa177ebc148489760c3bc496John McCall 643096832c5ed5b9106fa177ebc148489760c3bc496John McCall /// \brief Retrieve the explicit template argument list that followed the 644096832c5ed5b9106fa177ebc148489760c3bc496John McCall /// member template name. 645096832c5ed5b9106fa177ebc148489760c3bc496John McCall ExplicitTemplateArgumentList &getExplicitTemplateArgs() { 646096832c5ed5b9106fa177ebc148489760c3bc496John McCall assert(hasExplicitTemplateArgs()); 647096832c5ed5b9106fa177ebc148489760c3bc496John McCall 648096832c5ed5b9106fa177ebc148489760c3bc496John McCall if ((DecoratedD.getInt() & HasQualifierFlag) == 0) 649096832c5ed5b9106fa177ebc148489760c3bc496John McCall return *reinterpret_cast<ExplicitTemplateArgumentList *>(this + 1); 650096832c5ed5b9106fa177ebc148489760c3bc496John McCall 651096832c5ed5b9106fa177ebc148489760c3bc496John McCall return *reinterpret_cast<ExplicitTemplateArgumentList *>( 652096832c5ed5b9106fa177ebc148489760c3bc496John McCall getNameQualifier() + 1); 653096832c5ed5b9106fa177ebc148489760c3bc496John McCall } 654096832c5ed5b9106fa177ebc148489760c3bc496John McCall 655096832c5ed5b9106fa177ebc148489760c3bc496John McCall /// \brief Retrieve the explicit template argument list that followed the 656096832c5ed5b9106fa177ebc148489760c3bc496John McCall /// member template name. 657096832c5ed5b9106fa177ebc148489760c3bc496John McCall const ExplicitTemplateArgumentList &getExplicitTemplateArgs() const { 658096832c5ed5b9106fa177ebc148489760c3bc496John McCall return const_cast<DeclRefExpr *>(this)->getExplicitTemplateArgs(); 659a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor } 660d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall 661096832c5ed5b9106fa177ebc148489760c3bc496John McCall /// \brief Retrieves the optional explicit template arguments. 662096832c5ed5b9106fa177ebc148489760c3bc496John McCall /// This points to the same data as getExplicitTemplateArgs(), but 663096832c5ed5b9106fa177ebc148489760c3bc496John McCall /// returns null if there are no explicit template arguments. 664096832c5ed5b9106fa177ebc148489760c3bc496John McCall const ExplicitTemplateArgumentList *getExplicitTemplateArgsOpt() const { 665096832c5ed5b9106fa177ebc148489760c3bc496John McCall if (!hasExplicitTemplateArgs()) return 0; 666096832c5ed5b9106fa177ebc148489760c3bc496John McCall return &getExplicitTemplateArgs(); 667096832c5ed5b9106fa177ebc148489760c3bc496John McCall } 668096832c5ed5b9106fa177ebc148489760c3bc496John McCall 669d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall /// \brief Copies the template arguments (if present) into the given 670d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall /// structure. 671d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall void copyTemplateArgumentsInto(TemplateArgumentListInfo &List) const { 672096832c5ed5b9106fa177ebc148489760c3bc496John McCall if (hasExplicitTemplateArgs()) 673096832c5ed5b9106fa177ebc148489760c3bc496John McCall getExplicitTemplateArgs().copyInto(List); 674d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall } 675c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 676a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// \brief Retrieve the location of the left angle bracket following the 677a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// member name ('<'), if any. 678a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor SourceLocation getLAngleLoc() const { 679096832c5ed5b9106fa177ebc148489760c3bc496John McCall if (!hasExplicitTemplateArgs()) 680a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor return SourceLocation(); 681c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 682096832c5ed5b9106fa177ebc148489760c3bc496John McCall return getExplicitTemplateArgs().LAngleLoc; 683a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor } 684c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 685a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// \brief Retrieve the template arguments provided as part of this 686a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// template-id. 687833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall const TemplateArgumentLoc *getTemplateArgs() const { 688096832c5ed5b9106fa177ebc148489760c3bc496John McCall if (!hasExplicitTemplateArgs()) 689a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor return 0; 690c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 691096832c5ed5b9106fa177ebc148489760c3bc496John McCall return getExplicitTemplateArgs().getTemplateArgs(); 692a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor } 693c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 694a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// \brief Retrieve the number of template arguments provided as part of this 695a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// template-id. 696a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor unsigned getNumTemplateArgs() const { 697096832c5ed5b9106fa177ebc148489760c3bc496John McCall if (!hasExplicitTemplateArgs()) 698a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor return 0; 699c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 700096832c5ed5b9106fa177ebc148489760c3bc496John McCall return getExplicitTemplateArgs().NumTemplateArgs; 701a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor } 702c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 703a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// \brief Retrieve the location of the right angle bracket following the 704a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// template arguments ('>'). 705a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor SourceLocation getRAngleLoc() const { 706096832c5ed5b9106fa177ebc148489760c3bc496John McCall if (!hasExplicitTemplateArgs()) 707a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor return SourceLocation(); 708c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 709096832c5ed5b9106fa177ebc148489760c3bc496John McCall return getExplicitTemplateArgs().RAngleLoc; 710a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor } 711c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 7121eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 71399e9b4d172f6877e6ba5ebe75bb8238721f5e01cDouglas Gregor return T->getStmtClass() == DeclRefExprClass; 7145f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 7155f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const DeclRefExpr *) { return true; } 7161eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 71777ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek // Iterators 71877ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_begin(); 71977ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_end(); 720663e380d7b2de2bbf20e886e05371195bea9adc4Argyrios Kyrtzidis 72160adf4acf40b72227740bf966fb87eebddff3f37Sebastian Redl friend class ASTStmtReader; 7223397c5570369f19b2d6c52e898f708d75ceede1fSebastian Redl friend class ASTStmtWriter; 7235f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 7245f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 725d9f6910f4ef37c0e8eeee2a01287d9572c3176efChris Lattner/// PredefinedExpr - [C99 6.4.2.2] - A predefined identifier such as __func__. 726d9f6910f4ef37c0e8eeee2a01287d9572c3176efChris Lattnerclass PredefinedExpr : public Expr { 727227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlssonpublic: 728227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson enum IdentType { 729227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson Func, 730227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson Function, 731848fa64143fbe5ae62a601ad61277f741e54dfabAnders Carlsson PrettyFunction, 732848fa64143fbe5ae62a601ad61277f741e54dfabAnders Carlsson /// PrettyFunctionNoVirtual - The same as PrettyFunction, except that the 733848fa64143fbe5ae62a601ad61277f741e54dfabAnders Carlsson /// 'virtual' keyword is omitted for virtual member functions. 734848fa64143fbe5ae62a601ad61277f741e54dfabAnders Carlsson PrettyFunctionNoVirtual 735227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson }; 7361eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 737227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlssonprivate: 738227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson SourceLocation Loc; 739227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson IdentType Type; 740227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlssonpublic: 7411eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump PredefinedExpr(SourceLocation l, QualType type, IdentType IT) 742c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt : Expr(PredefinedExprClass, type, type->isDependentType(), 743773f3973cf5e2b6b8788e895967dcb3c1e6ffe79Anders Carlsson type->isDependentType()), Loc(l), Type(IT) {} 7441eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 74517fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor /// \brief Construct an empty predefined expression. 7461eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump explicit PredefinedExpr(EmptyShell Empty) 74717fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor : Expr(PredefinedExprClass, Empty) { } 74817fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor 749227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson IdentType getIdentType() const { return Type; } 75017fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor void setIdentType(IdentType IT) { Type = IT; } 75117fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor 75217fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor SourceLocation getLocation() const { return Loc; } 75317fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor void setLocation(SourceLocation L) { Loc = L; } 75417fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor 755848fa64143fbe5ae62a601ad61277f741e54dfabAnders Carlsson static std::string ComputeName(IdentType IT, const Decl *CurrentDecl); 7563a082d81006e7a2e01a6e431a22e21c78490ff8fAnders Carlsson 757227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson virtual SourceRange getSourceRange() const { return SourceRange(Loc); } 758227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson 7591eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 7601eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == PredefinedExprClass; 761227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson } 762d9f6910f4ef37c0e8eeee2a01287d9572c3176efChris Lattner static bool classof(const PredefinedExpr *) { return true; } 7631eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 76477ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek // Iterators 76577ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_begin(); 76677ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_end(); 767227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson}; 768227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson 7699996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis/// \brief Used by IntegerLiteral/FloatingLiteral to store the numeric without 7709996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis/// leaking memory. 7719996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis/// 7729996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis/// For large floats/integers, APFloat/APInt will allocate memory from the heap 7739996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis/// to represent these numbers. Unfortunately, when we use a BumpPtrAllocator 7749996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis/// to allocate IntegerLiteral/FloatingLiteral nodes the memory associated with 7759996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis/// the APFloat/APInt values will never get freed. APNumericStorage uses 7769996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis/// ASTContext's allocator for memory allocation. 7779996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidisclass APNumericStorage { 7789996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis unsigned BitWidth; 7799996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis union { 7809996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis uint64_t VAL; ///< Used to store the <= 64 bits integer value. 7819996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis uint64_t *pVal; ///< Used to store the >64 bits integer value. 7829996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis }; 7839996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis 7849996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis bool hasAllocation() const { return llvm::APInt::getNumWords(BitWidth) > 1; } 7859996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis 7869996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis APNumericStorage(const APNumericStorage&); // do not implement 7879996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis APNumericStorage& operator=(const APNumericStorage&); // do not implement 7889996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis 7899996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidisprotected: 7909996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis APNumericStorage() : BitWidth(0), VAL(0) { } 7919996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis 7929996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis llvm::APInt getIntValue() const { 7939996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis unsigned NumWords = llvm::APInt::getNumWords(BitWidth); 7949996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis if (NumWords > 1) 7959996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis return llvm::APInt(BitWidth, NumWords, pVal); 7969996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis else 7979996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis return llvm::APInt(BitWidth, VAL); 7989996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis } 7999996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis void setIntValue(ASTContext &C, const llvm::APInt &Val); 8009996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis}; 8019996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis 8029996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidisclass APIntStorage : public APNumericStorage { 8039996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidispublic: 8049996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis llvm::APInt getValue() const { return getIntValue(); } 8059996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis void setValue(ASTContext &C, const llvm::APInt &Val) { setIntValue(C, Val); } 8069996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis}; 8079996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis 8089996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidisclass APFloatStorage : public APNumericStorage { 8099996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidispublic: 8109996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis llvm::APFloat getValue() const { return llvm::APFloat(getIntValue()); } 8119996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis void setValue(ASTContext &C, const llvm::APFloat &Val) { 8129996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis setIntValue(C, Val.bitcastToAPInt()); 8139996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis } 8149996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis}; 8159996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis 8165f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass IntegerLiteral : public Expr { 8179996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis APIntStorage Num; 8185f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation Loc; 8199996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis 8209996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis /// \brief Construct an empty integer literal. 8219996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis explicit IntegerLiteral(EmptyShell Empty) 8229996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis : Expr(IntegerLiteralClass, Empty) { } 8239996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis 8245f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 8251eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // type should be IntTy, LongTy, LongLongTy, UnsignedIntTy, UnsignedLongTy, 8265f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // or UnsignedLongLongTy 8279996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis IntegerLiteral(ASTContext &C, const llvm::APInt &V, 8289996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis QualType type, SourceLocation l) 8299996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis : Expr(IntegerLiteralClass, type, false, false), Loc(l) { 8305f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer assert(type->isIntegerType() && "Illegal type in IntegerLiteral"); 8319996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis setValue(C, V); 8325f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 833a135fb43eb94524a6529768596a4533eed9aa70dAnders Carlsson 8349996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis // type should be IntTy, LongTy, LongLongTy, UnsignedIntTy, UnsignedLongTy, 8359996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis // or UnsignedLongLongTy 8369996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis static IntegerLiteral *Create(ASTContext &C, const llvm::APInt &V, 8379996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis QualType type, SourceLocation l); 8389996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis static IntegerLiteral *Create(ASTContext &C, EmptyShell Empty); 8390b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor 8409996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis llvm::APInt getValue() const { return Num.getValue(); } 8415f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer virtual SourceRange getSourceRange() const { return SourceRange(Loc); } 8425f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 843313a81dd820c9b2c0203bdcd974c781a81e4f0cfDouglas Gregor /// \brief Retrieve the location of the literal. 844313a81dd820c9b2c0203bdcd974c781a81e4f0cfDouglas Gregor SourceLocation getLocation() const { return Loc; } 845313a81dd820c9b2c0203bdcd974c781a81e4f0cfDouglas Gregor 8469996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis void setValue(ASTContext &C, const llvm::APInt &Val) { Num.setValue(C, Val); } 8470b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor void setLocation(SourceLocation Location) { Loc = Location; } 8480b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor 8491eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 8501eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == IntegerLiteralClass; 8515f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 8525f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const IntegerLiteral *) { return true; } 8531eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 85477ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek // Iterators 85577ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_begin(); 85677ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_end(); 8575f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 8585f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 8595f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass CharacterLiteral : public Expr { 8605f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer unsigned Value; 8615f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation Loc; 862c250aae4f645833aed3a6321bc8598f7330dce8dChris Lattner bool IsWide; 8635f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 8645f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // type should be IntTy 865c250aae4f645833aed3a6321bc8598f7330dce8dChris Lattner CharacterLiteral(unsigned value, bool iswide, QualType type, SourceLocation l) 8662333f7727f97018d6742e1e0938133bcfad967abEli Friedman : Expr(CharacterLiteralClass, type, false, false), Value(value), Loc(l), 8672333f7727f97018d6742e1e0938133bcfad967abEli Friedman IsWide(iswide) { 8685f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 8690b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor 8700b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor /// \brief Construct an empty character literal. 8710b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor CharacterLiteral(EmptyShell Empty) : Expr(CharacterLiteralClass, Empty) { } 8720b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor 873018d8e0596dd57401eeddcf11ac84ff0a065fbbeChris Lattner SourceLocation getLocation() const { return Loc; } 874c250aae4f645833aed3a6321bc8598f7330dce8dChris Lattner bool isWide() const { return IsWide; } 8751eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 8765f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer virtual SourceRange getSourceRange() const { return SourceRange(Loc); } 8771eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 8785f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer unsigned getValue() const { return Value; } 8795f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 8800b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor void setLocation(SourceLocation Location) { Loc = Location; } 8810b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor void setWide(bool W) { IsWide = W; } 8820b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor void setValue(unsigned Val) { Value = Val; } 8830b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor 8841eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 8851eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == CharacterLiteralClass; 8865f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 8875f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const CharacterLiteral *) { return true; } 88877ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek 88977ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek // Iterators 89077ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_begin(); 89177ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_end(); 8925f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 8935f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 8945f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass FloatingLiteral : public Expr { 8959996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis APFloatStorage Num; 896720c4ec57b6110873cd533ad434853a27e7c3f4aTed Kremenek bool IsExact : 1; 8975f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation Loc; 8989996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis 8999996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis FloatingLiteral(ASTContext &C, const llvm::APFloat &V, bool isexact, 900720c4ec57b6110873cd533ad434853a27e7c3f4aTed Kremenek QualType Type, SourceLocation L) 9019996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis : Expr(FloatingLiteralClass, Type, false, false), 9029996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis IsExact(isexact), Loc(L) { 9039996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis setValue(C, V); 9049996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis } 9055f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 90617fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor /// \brief Construct an empty floating-point literal. 9071eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump explicit FloatingLiteral(EmptyShell Empty) 9089996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis : Expr(FloatingLiteralClass, Empty), IsExact(false) { } 90917fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor 9109996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidispublic: 9119996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis static FloatingLiteral *Create(ASTContext &C, const llvm::APFloat &V, 9129996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis bool isexact, QualType Type, SourceLocation L); 9139996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis static FloatingLiteral *Create(ASTContext &C, EmptyShell Empty); 9149996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis 9159996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis llvm::APFloat getValue() const { return Num.getValue(); } 9169996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis void setValue(ASTContext &C, const llvm::APFloat &Val) { 9179996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis Num.setValue(C, Val); 9189996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis } 91917fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor 920720c4ec57b6110873cd533ad434853a27e7c3f4aTed Kremenek bool isExact() const { return IsExact; } 92117fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor void setExact(bool E) { IsExact = E; } 922c9bec4bfea9090a08dd83a7b213f0c8adf8d78ecChris Lattner 923da8249e57f3badecf925571881fe57243935c6c1Chris Lattner /// getValueAsApproximateDouble - This returns the value as an inaccurate 924da8249e57f3badecf925571881fe57243935c6c1Chris Lattner /// double. Note that this may cause loss of precision, but is useful for 925da8249e57f3badecf925571881fe57243935c6c1Chris Lattner /// debugging dumps, etc. 926da8249e57f3badecf925571881fe57243935c6c1Chris Lattner double getValueAsApproximateDouble() const; 9271eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 92817fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor SourceLocation getLocation() const { return Loc; } 92917fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor void setLocation(SourceLocation L) { Loc = L; } 93017fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor 9315f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer virtual SourceRange getSourceRange() const { return SourceRange(Loc); } 9325f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 9331eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 9341eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == FloatingLiteralClass; 9355f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 9365f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const FloatingLiteral *) { return true; } 9371eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 93877ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek // Iterators 93977ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_begin(); 94077ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_end(); 9415f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 9425f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 9435d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner/// ImaginaryLiteral - We support imaginary integer and floating point literals, 9445d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner/// like "1.0i". We represent these as a wrapper around FloatingLiteral and 9455d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner/// IntegerLiteral classes. Instances of this class always have a Complex type 9465d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner/// whose element type matches the subexpression. 9475d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner/// 9485d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattnerclass ImaginaryLiteral : public Expr { 9495549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Stmt *Val; 9505d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattnerpublic: 9515d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner ImaginaryLiteral(Expr *val, QualType Ty) 9522333f7727f97018d6742e1e0938133bcfad967abEli Friedman : Expr(ImaginaryLiteralClass, Ty, false, false), Val(val) {} 9531eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 954cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor /// \brief Build an empty imaginary literal. 9551eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump explicit ImaginaryLiteral(EmptyShell Empty) 956cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor : Expr(ImaginaryLiteralClass, Empty) { } 957cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor 9585549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek const Expr *getSubExpr() const { return cast<Expr>(Val); } 9595549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getSubExpr() { return cast<Expr>(Val); } 960cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor void setSubExpr(Expr *E) { Val = E; } 961cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor 9625d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner virtual SourceRange getSourceRange() const { return Val->getSourceRange(); } 9631eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 9641eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == ImaginaryLiteralClass; 9655d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner } 9665d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner static bool classof(const ImaginaryLiteral *) { return true; } 9671eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 9685d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner // Iterators 9695d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner virtual child_iterator child_begin(); 9705d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner virtual child_iterator child_end(); 9715d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner}; 9725d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner 973e6a82b2c29ad05534841e5f8fd033fb17b6f61e2Ted Kremenek/// StringLiteral - This represents a string literal expression, e.g. "foo" 974e6a82b2c29ad05534841e5f8fd033fb17b6f61e2Ted Kremenek/// or L"bar" (wide strings). The actual string is returned by getStrData() 975e6a82b2c29ad05534841e5f8fd033fb17b6f61e2Ted Kremenek/// is NOT null-terminated, and the length of the string is determined by 976a7ad98ff0919d6a24ea7c46634ea29bea551c1a0Chris Lattner/// calling getByteLength(). The C type for a string is always a 977c4a09c189981b4561428e4b56fd250718e2717bbChris Lattner/// ConstantArrayType. In C++, the char type is const qualified, in C it is 978c4a09c189981b4561428e4b56fd250718e2717bbChris Lattner/// not. 979690398188ea5b428f06aa13c7d4ce6eb741ad4f9Chris Lattner/// 980690398188ea5b428f06aa13c7d4ce6eb741ad4f9Chris Lattner/// Note that strings in C can be formed by concatenation of multiple string 9818bea7c0ee44c71c817de7dc2be932b73bec90c9fChris Lattner/// literal pptokens in translation phase #6. This keeps track of the locations 982690398188ea5b428f06aa13c7d4ce6eb741ad4f9Chris Lattner/// of each of these pieces. 983c4a09c189981b4561428e4b56fd250718e2717bbChris Lattner/// 984c4a09c189981b4561428e4b56fd250718e2717bbChris Lattner/// Strings in C can also be truncated and extended by assigning into arrays, 985c4a09c189981b4561428e4b56fd250718e2717bbChris Lattner/// e.g. with constructs like: 986c4a09c189981b4561428e4b56fd250718e2717bbChris Lattner/// char X[2] = "foobar"; 987c4a09c189981b4561428e4b56fd250718e2717bbChris Lattner/// In this case, getByteLength() will return 6, but the string literal will 988c4a09c189981b4561428e4b56fd250718e2717bbChris Lattner/// have type "char[2]". 9895f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass StringLiteral : public Expr { 9905f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer const char *StrData; 9915f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer unsigned ByteLength; 9925f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool IsWide; 993726e168dc09fb23f53c7b004f8e919421ee91806Chris Lattner unsigned NumConcatenated; 994726e168dc09fb23f53c7b004f8e919421ee91806Chris Lattner SourceLocation TokLocs[1]; 9952085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner 9962333f7727f97018d6742e1e0938133bcfad967abEli Friedman StringLiteral(QualType Ty) : Expr(StringLiteralClass, Ty, false, false) {} 9971eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 9985f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 9992085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner /// This is the "fully general" constructor that allows representation of 10002085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner /// strings formed from multiple concatenated tokens. 10012085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner static StringLiteral *Create(ASTContext &C, const char *StrData, 10022085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner unsigned ByteLength, bool Wide, QualType Ty, 1003a135fb43eb94524a6529768596a4533eed9aa70dAnders Carlsson const SourceLocation *Loc, unsigned NumStrs); 10042085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner 10052085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner /// Simple constructor for string literals made from one token. 10061eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static StringLiteral *Create(ASTContext &C, const char *StrData, 10072085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner unsigned ByteLength, 10082085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner bool Wide, QualType Ty, SourceLocation Loc) { 10092085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner return Create(C, StrData, ByteLength, Wide, Ty, &Loc, 1); 10102085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner } 1011a135fb43eb94524a6529768596a4533eed9aa70dAnders Carlsson 1012673ecd6a4a9f7c12fb6f76f84f654dbdcdc89e76Douglas Gregor /// \brief Construct an empty string literal. 1013673ecd6a4a9f7c12fb6f76f84f654dbdcdc89e76Douglas Gregor static StringLiteral *CreateEmpty(ASTContext &C, unsigned NumStrs); 1014673ecd6a4a9f7c12fb6f76f84f654dbdcdc89e76Douglas Gregor 1015b648023da23e8b227cdda57a241db4c6f368726bDaniel Dunbar llvm::StringRef getString() const { 1016b648023da23e8b227cdda57a241db4c6f368726bDaniel Dunbar return llvm::StringRef(StrData, ByteLength); 1017b648023da23e8b227cdda57a241db4c6f368726bDaniel Dunbar } 10182f4eaef37476ae6891ede8ba215d0f6fd093629bBenjamin Kramer 10195f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer unsigned getByteLength() const { return ByteLength; } 1020673ecd6a4a9f7c12fb6f76f84f654dbdcdc89e76Douglas Gregor 1021673ecd6a4a9f7c12fb6f76f84f654dbdcdc89e76Douglas Gregor /// \brief Sets the string data to the given string data. 1022b648023da23e8b227cdda57a241db4c6f368726bDaniel Dunbar void setString(ASTContext &C, llvm::StringRef Str); 1023673ecd6a4a9f7c12fb6f76f84f654dbdcdc89e76Douglas Gregor 10245f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool isWide() const { return IsWide; } 1025673ecd6a4a9f7c12fb6f76f84f654dbdcdc89e76Douglas Gregor void setWide(bool W) { IsWide = W; } 1026673ecd6a4a9f7c12fb6f76f84f654dbdcdc89e76Douglas Gregor 10278d4141f83d9de379547cf05bd75d4c6cf894b189Steve Naroff bool containsNonAsciiOrNull() const { 1028b648023da23e8b227cdda57a241db4c6f368726bDaniel Dunbar llvm::StringRef Str = getString(); 1029b648023da23e8b227cdda57a241db4c6f368726bDaniel Dunbar for (unsigned i = 0, e = Str.size(); i != e; ++i) 1030b648023da23e8b227cdda57a241db4c6f368726bDaniel Dunbar if (!isascii(Str[i]) || !Str[i]) 103133fdb738a6c125f4c788733897021b7c1a062b0cSteve Naroff return true; 103233fdb738a6c125f4c788733897021b7c1a062b0cSteve Naroff return false; 103333fdb738a6c125f4c788733897021b7c1a062b0cSteve Naroff } 1034726e168dc09fb23f53c7b004f8e919421ee91806Chris Lattner /// getNumConcatenated - Get the number of string literal tokens that were 1035726e168dc09fb23f53c7b004f8e919421ee91806Chris Lattner /// concatenated in translation phase #6 to form this string literal. 1036726e168dc09fb23f53c7b004f8e919421ee91806Chris Lattner unsigned getNumConcatenated() const { return NumConcatenated; } 10371eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1038726e168dc09fb23f53c7b004f8e919421ee91806Chris Lattner SourceLocation getStrTokenLoc(unsigned TokNum) const { 1039726e168dc09fb23f53c7b004f8e919421ee91806Chris Lattner assert(TokNum < NumConcatenated && "Invalid tok number"); 1040726e168dc09fb23f53c7b004f8e919421ee91806Chris Lattner return TokLocs[TokNum]; 1041726e168dc09fb23f53c7b004f8e919421ee91806Chris Lattner } 10421eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump void setStrTokenLoc(unsigned TokNum, SourceLocation L) { 1043673ecd6a4a9f7c12fb6f76f84f654dbdcdc89e76Douglas Gregor assert(TokNum < NumConcatenated && "Invalid tok number"); 1044673ecd6a4a9f7c12fb6f76f84f654dbdcdc89e76Douglas Gregor TokLocs[TokNum] = L; 1045673ecd6a4a9f7c12fb6f76f84f654dbdcdc89e76Douglas Gregor } 1046673ecd6a4a9f7c12fb6f76f84f654dbdcdc89e76Douglas Gregor 1047b137299ce5bb6c36fbba651858600857fda4dd50Chris Lattner typedef const SourceLocation *tokloc_iterator; 1048b137299ce5bb6c36fbba651858600857fda4dd50Chris Lattner tokloc_iterator tokloc_begin() const { return TokLocs; } 1049b137299ce5bb6c36fbba651858600857fda4dd50Chris Lattner tokloc_iterator tokloc_end() const { return TokLocs+NumConcatenated; } 10505f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 10511eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump virtual SourceRange getSourceRange() const { 10521eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return SourceRange(TokLocs[0], TokLocs[NumConcatenated-1]); 10535f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 10541eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 10551eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == StringLiteralClass; 10565f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 10575f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const StringLiteral *) { return true; } 10581eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 105977ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek // Iterators 106077ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_begin(); 106177ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_end(); 10625f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 10635f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 10645f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// ParenExpr - This represents a parethesized expression, e.g. "(1)". This 10655f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// AST node is only formed if full location information is requested. 10665f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass ParenExpr : public Expr { 10675f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation L, R; 10685549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Stmt *Val; 10695f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 10705f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ParenExpr(SourceLocation l, SourceLocation r, Expr *val) 1071898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor : Expr(ParenExprClass, val->getType(), 10721eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump val->isTypeDependent(), val->isValueDependent()), 1073898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor L(l), R(r), Val(val) {} 10741eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1075c04db4feefa2b0dbbc6876cb4eeeee108aa6791dDouglas Gregor /// \brief Construct an empty parenthesized expression. 10761eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump explicit ParenExpr(EmptyShell Empty) 1077c04db4feefa2b0dbbc6876cb4eeeee108aa6791dDouglas Gregor : Expr(ParenExprClass, Empty) { } 1078c04db4feefa2b0dbbc6876cb4eeeee108aa6791dDouglas Gregor 10795549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek const Expr *getSubExpr() const { return cast<Expr>(Val); } 10805549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getSubExpr() { return cast<Expr>(Val); } 1081c04db4feefa2b0dbbc6876cb4eeeee108aa6791dDouglas Gregor void setSubExpr(Expr *E) { Val = E; } 1082c04db4feefa2b0dbbc6876cb4eeeee108aa6791dDouglas Gregor 1083866b5c03e3b9c01cf496ad97b85a05afc917345bTed Kremenek virtual SourceRange getSourceRange() const { return SourceRange(L, R); } 10845f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1085313a81dd820c9b2c0203bdcd974c781a81e4f0cfDouglas Gregor /// \brief Get the location of the left parentheses '('. 1086313a81dd820c9b2c0203bdcd974c781a81e4f0cfDouglas Gregor SourceLocation getLParen() const { return L; } 1087c04db4feefa2b0dbbc6876cb4eeeee108aa6791dDouglas Gregor void setLParen(SourceLocation Loc) { L = Loc; } 1088313a81dd820c9b2c0203bdcd974c781a81e4f0cfDouglas Gregor 1089313a81dd820c9b2c0203bdcd974c781a81e4f0cfDouglas Gregor /// \brief Get the location of the right parentheses ')'. 1090313a81dd820c9b2c0203bdcd974c781a81e4f0cfDouglas Gregor SourceLocation getRParen() const { return R; } 1091c04db4feefa2b0dbbc6876cb4eeeee108aa6791dDouglas Gregor void setRParen(SourceLocation Loc) { R = Loc; } 1092313a81dd820c9b2c0203bdcd974c781a81e4f0cfDouglas Gregor 10931eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 10941eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == ParenExprClass; 10955f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 10965f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const ParenExpr *) { return true; } 10971eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 109877ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek // Iterators 109977ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_begin(); 110077ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_end(); 11015f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 11025f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 11035f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 11040518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl/// UnaryOperator - This represents the unary-expression's (except sizeof and 11050518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl/// alignof), the postinc/postdec operators from postfix-expression, and various 11065f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// extensions. 1107dbb36971c68ea944ac4b1fbe2d97fe7cca3b20acChris Lattner/// 1108dbb36971c68ea944ac4b1fbe2d97fe7cca3b20acChris Lattner/// Notes on various nodes: 1109dbb36971c68ea944ac4b1fbe2d97fe7cca3b20acChris Lattner/// 1110dbb36971c68ea944ac4b1fbe2d97fe7cca3b20acChris Lattner/// Real/Imag - These return the real/imag part of a complex operand. If 1111dbb36971c68ea944ac4b1fbe2d97fe7cca3b20acChris Lattner/// applied to a non-complex value, the former returns its operand and the 1112dbb36971c68ea944ac4b1fbe2d97fe7cca3b20acChris Lattner/// later returns zero in the type of the operand. 1113dbb36971c68ea944ac4b1fbe2d97fe7cca3b20acChris Lattner/// 11145f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass UnaryOperator : public Expr { 11155f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 11165baba9d98364a3525d6afa15a04cdad82fd6dd30John McCall typedef UnaryOperatorKind Opcode; 11175baba9d98364a3525d6afa15a04cdad82fd6dd30John McCall 11185f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerprivate: 11190799c53fc2bb7acf937c8a8e165033dba1a5aba3John McCall unsigned Opc : 5; 11205f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation Loc; 11210799c53fc2bb7acf937c8a8e165033dba1a5aba3John McCall Stmt *Val; 11221eb4433ac451dc16f4133a88af2d002ac26c58efMike Stumppublic: 11235f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 11245f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer UnaryOperator(Expr *input, Opcode opc, QualType type, SourceLocation l) 11259103bb27f4eefa0e0d7935387750e3aca24abc49Douglas Gregor : Expr(UnaryOperatorClass, type, 1126de7e66256b1bdfcf6526994825a8c8fced52a31cEli Friedman input->isTypeDependent() || type->isDependentType(), 11271eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump input->isValueDependent()), 11280799c53fc2bb7acf937c8a8e165033dba1a5aba3John McCall Opc(opc), Loc(l), Val(input) {} 11295f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 11300b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor /// \brief Build an empty unary operator. 11311eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump explicit UnaryOperator(EmptyShell Empty) 11322de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall : Expr(UnaryOperatorClass, Empty), Opc(UO_AddrOf) { } 11330b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor 11340799c53fc2bb7acf937c8a8e165033dba1a5aba3John McCall Opcode getOpcode() const { return static_cast<Opcode>(Opc); } 11350b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor void setOpcode(Opcode O) { Opc = O; } 11360b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor 11375549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getSubExpr() const { return cast<Expr>(Val); } 11380b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor void setSubExpr(Expr *E) { Val = E; } 11390b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor 11405f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// getOperatorLoc - Return the location of the operator. 11415f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation getOperatorLoc() const { return Loc; } 11420b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor void setOperatorLoc(SourceLocation L) { Loc = L; } 11430b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor 11445f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// isPostfix - Return true if this is a postfix operation, like x++. 11452085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner static bool isPostfix(Opcode Op) { 11462de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall return Op == UO_PostInc || Op == UO_PostDec; 11472085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner } 11485f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 11495a56ac30d04e8f0431a08980885662a47a6308aaTed Kremenek /// isPostfix - Return true if this is a prefix operation, like --x. 11502085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner static bool isPrefix(Opcode Op) { 11512de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall return Op == UO_PreInc || Op == UO_PreDec; 11522085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner } 11535a56ac30d04e8f0431a08980885662a47a6308aaTed Kremenek 11540799c53fc2bb7acf937c8a8e165033dba1a5aba3John McCall bool isPrefix() const { return isPrefix(getOpcode()); } 11550799c53fc2bb7acf937c8a8e165033dba1a5aba3John McCall bool isPostfix() const { return isPostfix(getOpcode()); } 11562de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall bool isIncrementOp() const { 1157993cdca0fed7deb646e4654dfb2607227a497faaBenjamin Kramer return Opc == UO_PreInc || Opc == UO_PostInc; 11582de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall } 11592de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall bool isIncrementDecrementOp() const { 1160993cdca0fed7deb646e4654dfb2607227a497faaBenjamin Kramer return Opc <= UO_PreDec; 11612de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall } 11622de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall static bool isArithmeticOp(Opcode Op) { 11632de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall return Op >= UO_Plus && Op <= UO_LNot; 11642de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall } 11650799c53fc2bb7acf937c8a8e165033dba1a5aba3John McCall bool isArithmeticOp() const { return isArithmeticOp(getOpcode()); } 11661eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 11675f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// getOpcodeStr - Turn an Opcode enum value into the punctuation char it 11685f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// corresponds to, e.g. "sizeof" or "[pre]++" 11695f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static const char *getOpcodeStr(Opcode Op); 11705f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1171bc736fceca6f0bca31d16003a7587857190408fbDouglas Gregor /// \brief Retrieve the unary opcode that corresponds to the given 1172bc736fceca6f0bca31d16003a7587857190408fbDouglas Gregor /// overloaded operator. 1173bc736fceca6f0bca31d16003a7587857190408fbDouglas Gregor static Opcode getOverloadedOpcode(OverloadedOperatorKind OO, bool Postfix); 1174bc736fceca6f0bca31d16003a7587857190408fbDouglas Gregor 1175bc736fceca6f0bca31d16003a7587857190408fbDouglas Gregor /// \brief Retrieve the overloaded operator kind that corresponds to 1176bc736fceca6f0bca31d16003a7587857190408fbDouglas Gregor /// the given unary opcode. 1177bc736fceca6f0bca31d16003a7587857190408fbDouglas Gregor static OverloadedOperatorKind getOverloadedOperator(Opcode Opc); 1178bc736fceca6f0bca31d16003a7587857190408fbDouglas Gregor 11795f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer virtual SourceRange getSourceRange() const { 11805f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (isPostfix()) 11815f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return SourceRange(Val->getLocStart(), Loc); 11825f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer else 11835f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return SourceRange(Loc, Val->getLocEnd()); 11845f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 11855f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer virtual SourceLocation getExprLoc() const { return Loc; } 11861eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 11871eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 11881eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == UnaryOperatorClass; 11895f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 11905f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const UnaryOperator *) { return true; } 11911eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 119277ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek // Iterators 119377ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_begin(); 119477ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_end(); 11955f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 11965f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 11978ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor/// OffsetOfExpr - [C99 7.17] - This represents an expression of the form 11988ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor/// offsetof(record-type, member-designator). For example, given: 11998ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor/// @code 12008ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor/// struct S { 12018ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor/// float f; 1202c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt/// double d; 12038ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor/// }; 12048ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor/// struct T { 12058ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor/// int i; 12068ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor/// struct S s[10]; 12078ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor/// }; 12088ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor/// @endcode 1209c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt/// we can represent and evaluate the expression @c offsetof(struct T, s[2].d). 12108ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor 12118ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregorclass OffsetOfExpr : public Expr { 12128ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregorpublic: 12138ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor // __builtin_offsetof(type, identifier(.identifier|[expr])*) 12148ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor class OffsetOfNode { 12158ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor public: 12168ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// \brief The kind of offsetof node we have. 12178ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor enum Kind { 1218cc8a5d5f90bbbbcb46f342117b851b7e07ec34f1Douglas Gregor /// \brief An index into an array. 12198ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor Array = 0x00, 1220cc8a5d5f90bbbbcb46f342117b851b7e07ec34f1Douglas Gregor /// \brief A field. 12218ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor Field = 0x01, 1222cc8a5d5f90bbbbcb46f342117b851b7e07ec34f1Douglas Gregor /// \brief A field in a dependent type, known only by its name. 1223cc8a5d5f90bbbbcb46f342117b851b7e07ec34f1Douglas Gregor Identifier = 0x02, 1224cc8a5d5f90bbbbcb46f342117b851b7e07ec34f1Douglas Gregor /// \brief An implicit indirection through a C++ base class, when the 1225cc8a5d5f90bbbbcb46f342117b851b7e07ec34f1Douglas Gregor /// field found is in a base class. 1226cc8a5d5f90bbbbcb46f342117b851b7e07ec34f1Douglas Gregor Base = 0x03 12278ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor }; 12288ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor 12298ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor private: 12308ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor enum { MaskBits = 2, Mask = 0x03 }; 1231c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 12328ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// \brief The source range that covers this part of the designator. 12338ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor SourceRange Range; 1234c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 12358ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// \brief The data describing the designator, which comes in three 12368ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// different forms, depending on the lower two bits. 1237c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt /// - An unsigned index into the array of Expr*'s stored after this node 12388ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// in memory, for [constant-expression] designators. 12398ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// - A FieldDecl*, for references to a known field. 12408ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// - An IdentifierInfo*, for references to a field with a given name 12418ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// when the class type is dependent. 1242c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt /// - A CXXBaseSpecifier*, for references that look at a field in a 1243cc8a5d5f90bbbbcb46f342117b851b7e07ec34f1Douglas Gregor /// base class. 12448ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor uintptr_t Data; 1245c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 12468ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor public: 12478ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// \brief Create an offsetof node that refers to an array element. 1248c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt OffsetOfNode(SourceLocation LBracketLoc, unsigned Index, 12498ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor SourceLocation RBracketLoc) 12508ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor : Range(LBracketLoc, RBracketLoc), Data((Index << 2) | Array) { } 1251c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 12528ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// \brief Create an offsetof node that refers to a field. 1253c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt OffsetOfNode(SourceLocation DotLoc, FieldDecl *Field, 12548ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor SourceLocation NameLoc) 1255c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt : Range(DotLoc.isValid()? DotLoc : NameLoc, NameLoc), 12568ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor Data(reinterpret_cast<uintptr_t>(Field) | OffsetOfNode::Field) { } 1257c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 12588ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// \brief Create an offsetof node that refers to an identifier. 12598ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor OffsetOfNode(SourceLocation DotLoc, IdentifierInfo *Name, 12608ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor SourceLocation NameLoc) 1261c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt : Range(DotLoc.isValid()? DotLoc : NameLoc, NameLoc), 12628ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor Data(reinterpret_cast<uintptr_t>(Name) | Identifier) { } 1263cc8a5d5f90bbbbcb46f342117b851b7e07ec34f1Douglas Gregor 1264cc8a5d5f90bbbbcb46f342117b851b7e07ec34f1Douglas Gregor /// \brief Create an offsetof node that refers into a C++ base class. 1265cc8a5d5f90bbbbcb46f342117b851b7e07ec34f1Douglas Gregor explicit OffsetOfNode(const CXXBaseSpecifier *Base) 1266cc8a5d5f90bbbbcb46f342117b851b7e07ec34f1Douglas Gregor : Range(), Data(reinterpret_cast<uintptr_t>(Base) | OffsetOfNode::Base) {} 1267c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 12688ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// \brief Determine what kind of offsetof node this is. 1269c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt Kind getKind() const { 12708ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor return static_cast<Kind>(Data & Mask); 12718ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor } 1272c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 12738ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// \brief For an array element node, returns the index into the array 12748ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// of expressions. 12758ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor unsigned getArrayExprIndex() const { 12768ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor assert(getKind() == Array); 12778ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor return Data >> 2; 12788ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor } 12798ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor 12808ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// \brief For a field offsetof node, returns the field. 12818ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor FieldDecl *getField() const { 12828ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor assert(getKind() == Field); 1283cc8a5d5f90bbbbcb46f342117b851b7e07ec34f1Douglas Gregor return reinterpret_cast<FieldDecl *>(Data & ~(uintptr_t)Mask); 12848ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor } 1285c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 12868ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// \brief For a field or identifier offsetof node, returns the name of 12878ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// the field. 12888ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor IdentifierInfo *getFieldName() const; 1289c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 1290cc8a5d5f90bbbbcb46f342117b851b7e07ec34f1Douglas Gregor /// \brief For a base class node, returns the base specifier. 1291cc8a5d5f90bbbbcb46f342117b851b7e07ec34f1Douglas Gregor CXXBaseSpecifier *getBase() const { 1292cc8a5d5f90bbbbcb46f342117b851b7e07ec34f1Douglas Gregor assert(getKind() == Base); 1293c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt return reinterpret_cast<CXXBaseSpecifier *>(Data & ~(uintptr_t)Mask); 1294cc8a5d5f90bbbbcb46f342117b851b7e07ec34f1Douglas Gregor } 1295c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 12968ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// \brief Retrieve the source range that covers this offsetof node. 12978ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// 12988ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// For an array element node, the source range contains the locations of 12998ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// the square brackets. For a field or identifier node, the source range 1300c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt /// contains the location of the period (if there is one) and the 13018ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// identifier. 13028ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor SourceRange getRange() const { return Range; } 13038ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor }; 13048ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor 13058ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregorprivate: 1306c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 13078ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor SourceLocation OperatorLoc, RParenLoc; 13088ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor // Base type; 13098ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor TypeSourceInfo *TSInfo; 13108ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor // Number of sub-components (i.e. instances of OffsetOfNode). 13118ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor unsigned NumComps; 13128ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor // Number of sub-expressions (i.e. array subscript expressions). 13138ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor unsigned NumExprs; 1314c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 1315c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt OffsetOfExpr(ASTContext &C, QualType type, 13168ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor SourceLocation OperatorLoc, TypeSourceInfo *tsi, 1317c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt OffsetOfNode* compsPtr, unsigned numComps, 13188ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor Expr** exprsPtr, unsigned numExprs, 13198ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor SourceLocation RParenLoc); 13208ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor 13218ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor explicit OffsetOfExpr(unsigned numComps, unsigned numExprs) 13228ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor : Expr(OffsetOfExprClass, EmptyShell()), 1323c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt TSInfo(0), NumComps(numComps), NumExprs(numExprs) {} 13248ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor 13258ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregorpublic: 1326c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 1327c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt static OffsetOfExpr *Create(ASTContext &C, QualType type, 1328c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt SourceLocation OperatorLoc, TypeSourceInfo *tsi, 1329c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt OffsetOfNode* compsPtr, unsigned numComps, 13308ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor Expr** exprsPtr, unsigned numExprs, 13318ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor SourceLocation RParenLoc); 13328ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor 1333c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt static OffsetOfExpr *CreateEmpty(ASTContext &C, 13348ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor unsigned NumComps, unsigned NumExprs); 13358ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor 13368ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// getOperatorLoc - Return the location of the operator. 13378ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor SourceLocation getOperatorLoc() const { return OperatorLoc; } 13388ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor void setOperatorLoc(SourceLocation L) { OperatorLoc = L; } 13398ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor 13408ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// \brief Return the location of the right parentheses. 13418ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor SourceLocation getRParenLoc() const { return RParenLoc; } 13428ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor void setRParenLoc(SourceLocation R) { RParenLoc = R; } 1343c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 13448ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor TypeSourceInfo *getTypeSourceInfo() const { 13458ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor return TSInfo; 13468ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor } 13478ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor void setTypeSourceInfo(TypeSourceInfo *tsi) { 13488ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor TSInfo = tsi; 13498ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor } 1350c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 13518ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor const OffsetOfNode &getComponent(unsigned Idx) { 13528ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor assert(Idx < NumComps && "Subscript out of range"); 13538ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor return reinterpret_cast<OffsetOfNode *> (this + 1)[Idx]; 13548ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor } 13558ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor 13568ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor void setComponent(unsigned Idx, OffsetOfNode ON) { 13578ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor assert(Idx < NumComps && "Subscript out of range"); 13588ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor reinterpret_cast<OffsetOfNode *> (this + 1)[Idx] = ON; 13598ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor } 1360c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 13618ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor unsigned getNumComponents() const { 13628ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor return NumComps; 13638ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor } 13648ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor 13658ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor Expr* getIndexExpr(unsigned Idx) { 13668ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor assert(Idx < NumExprs && "Subscript out of range"); 13678ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor return reinterpret_cast<Expr **>( 13688ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor reinterpret_cast<OffsetOfNode *>(this+1) + NumComps)[Idx]; 13698ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor } 13708ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor 13718ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor void setIndexExpr(unsigned Idx, Expr* E) { 13728ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor assert(Idx < NumComps && "Subscript out of range"); 13738ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor reinterpret_cast<Expr **>( 13748ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor reinterpret_cast<OffsetOfNode *>(this+1) + NumComps)[Idx] = E; 13758ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor } 1376c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 13778ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor unsigned getNumExpressions() const { 13788ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor return NumExprs; 13798ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor } 13808ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor 13818ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor virtual SourceRange getSourceRange() const { 13828ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor return SourceRange(OperatorLoc, RParenLoc); 13838ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor } 13848ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor 13858ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor static bool classof(const Stmt *T) { 13868ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor return T->getStmtClass() == OffsetOfExprClass; 13878ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor } 13888ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor 13898ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor static bool classof(const OffsetOfExpr *) { return true; } 13908ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor 13918ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor // Iterators 13928ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor virtual child_iterator child_begin(); 13938ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor virtual child_iterator child_end(); 13948ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor}; 13958ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor 13960518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl/// SizeOfAlignOfExpr - [C99 6.5.3.4] - This is for sizeof/alignof, both of 13970518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl/// types and expressions. 13980518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redlclass SizeOfAlignOfExpr : public Expr { 13990518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl bool isSizeof : 1; // true if sizeof, false if alignof. 14000518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl bool isType : 1; // true if operand is a type, false if an expression 1401d457589fc69dc7a9c80cd74d317c0b81a35a27c9Sebastian Redl union { 1402a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall TypeSourceInfo *Ty; 1403d457589fc69dc7a9c80cd74d317c0b81a35a27c9Sebastian Redl Stmt *Ex; 1404d457589fc69dc7a9c80cd74d317c0b81a35a27c9Sebastian Redl } Argument; 14055f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation OpLoc, RParenLoc; 140642602bb40aefcc2751d4078ba88aacf4d965c9bdDouglas Gregor 14075f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 1408a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall SizeOfAlignOfExpr(bool issizeof, TypeSourceInfo *TInfo, 14090518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl QualType resultType, SourceLocation op, 14100518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl SourceLocation rp) : 14112850784bda09416fc7e9d57f5baa36c9351c757cSebastian Redl Expr(SizeOfAlignOfExprClass, resultType, 1412ba49817c5b9f502602672861cf369fd0e53966e8Douglas Gregor false, // Never type-dependent (C++ [temp.dep.expr]p3). 14132850784bda09416fc7e9d57f5baa36c9351c757cSebastian Redl // Value-dependent if the argument is type-dependent. 1414a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall TInfo->getType()->isDependentType()), 1415ba49817c5b9f502602672861cf369fd0e53966e8Douglas Gregor isSizeof(issizeof), isType(true), OpLoc(op), RParenLoc(rp) { 1416a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall Argument.Ty = TInfo; 1417ba49817c5b9f502602672861cf369fd0e53966e8Douglas Gregor } 1418ba49817c5b9f502602672861cf369fd0e53966e8Douglas Gregor 14191eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump SizeOfAlignOfExpr(bool issizeof, Expr *E, 1420ba49817c5b9f502602672861cf369fd0e53966e8Douglas Gregor QualType resultType, SourceLocation op, 1421ba49817c5b9f502602672861cf369fd0e53966e8Douglas Gregor SourceLocation rp) : 1422ba49817c5b9f502602672861cf369fd0e53966e8Douglas Gregor Expr(SizeOfAlignOfExprClass, resultType, 1423ba49817c5b9f502602672861cf369fd0e53966e8Douglas Gregor false, // Never type-dependent (C++ [temp.dep.expr]p3). 1424ba49817c5b9f502602672861cf369fd0e53966e8Douglas Gregor // Value-dependent if the argument is type-dependent. 1425ba49817c5b9f502602672861cf369fd0e53966e8Douglas Gregor E->isTypeDependent()), 1426ba49817c5b9f502602672861cf369fd0e53966e8Douglas Gregor isSizeof(issizeof), isType(false), OpLoc(op), RParenLoc(rp) { 1427ba49817c5b9f502602672861cf369fd0e53966e8Douglas Gregor Argument.Ex = E; 1428d457589fc69dc7a9c80cd74d317c0b81a35a27c9Sebastian Redl } 14290518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl 14300b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor /// \brief Construct an empty sizeof/alignof expression. 14310b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor explicit SizeOfAlignOfExpr(EmptyShell Empty) 14320b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor : Expr(SizeOfAlignOfExprClass, Empty) { } 14330b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor 14345f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool isSizeOf() const { return isSizeof; } 14350b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor void setSizeof(bool S) { isSizeof = S; } 14360b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor 14370518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl bool isArgumentType() const { return isType; } 14380518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl QualType getArgumentType() const { 14395ab75172051a6d2ea71a80a79e81c65519fd3462John McCall return getArgumentTypeInfo()->getType(); 14405ab75172051a6d2ea71a80a79e81c65519fd3462John McCall } 1441a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall TypeSourceInfo *getArgumentTypeInfo() const { 14420518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl assert(isArgumentType() && "calling getArgumentType() when arg is expr"); 14435ab75172051a6d2ea71a80a79e81c65519fd3462John McCall return Argument.Ty; 14440518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl } 1445caae7b099a0324b7c15dc89a9b70969d5d7ce996Chris Lattner Expr *getArgumentExpr() { 14460518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl assert(!isArgumentType() && "calling getArgumentExpr() when arg is type"); 1447d457589fc69dc7a9c80cd74d317c0b81a35a27c9Sebastian Redl return static_cast<Expr*>(Argument.Ex); 14480518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl } 1449caae7b099a0324b7c15dc89a9b70969d5d7ce996Chris Lattner const Expr *getArgumentExpr() const { 1450caae7b099a0324b7c15dc89a9b70969d5d7ce996Chris Lattner return const_cast<SizeOfAlignOfExpr*>(this)->getArgumentExpr(); 1451caae7b099a0324b7c15dc89a9b70969d5d7ce996Chris Lattner } 14520b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor 14530b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor void setArgument(Expr *E) { Argument.Ex = E; isType = false; } 1454a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall void setArgument(TypeSourceInfo *TInfo) { 1455a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall Argument.Ty = TInfo; 14561eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump isType = true; 14570b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor } 14580b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor 14590518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl /// Gets the argument type, or the type of the argument expression, whichever 14600518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl /// is appropriate. 14610518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl QualType getTypeOfArgument() const { 14620518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl return isArgumentType() ? getArgumentType() : getArgumentExpr()->getType(); 14630518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl } 14640518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl 146576e773a443be9f006610f46529e07d4c8d857680Chris Lattner SourceLocation getOperatorLoc() const { return OpLoc; } 14660b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor void setOperatorLoc(SourceLocation L) { OpLoc = L; } 14670b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor 14680b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor SourceLocation getRParenLoc() const { return RParenLoc; } 14690b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor void setRParenLoc(SourceLocation L) { RParenLoc = L; } 1470866b5c03e3b9c01cf496ad97b85a05afc917345bTed Kremenek 1471866b5c03e3b9c01cf496ad97b85a05afc917345bTed Kremenek virtual SourceRange getSourceRange() const { 1472866b5c03e3b9c01cf496ad97b85a05afc917345bTed Kremenek return SourceRange(OpLoc, RParenLoc); 1473866b5c03e3b9c01cf496ad97b85a05afc917345bTed Kremenek } 14745f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 14751eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 14761eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == SizeOfAlignOfExprClass; 14775f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 14780518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl static bool classof(const SizeOfAlignOfExpr *) { return true; } 14791eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 148077ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek // Iterators 148177ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_begin(); 148277ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_end(); 14835f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 14845f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 14855f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer//===----------------------------------------------------------------------===// 14865f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// Postfix Operators. 14875f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer//===----------------------------------------------------------------------===// 14885f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 14895f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// ArraySubscriptExpr - [C99 6.5.2.1] Array Subscripting. 14905f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass ArraySubscriptExpr : public Expr { 149177ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek enum { LHS, RHS, END_EXPR=2 }; 14921eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump Stmt* SubExprs[END_EXPR]; 14935f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation RBracketLoc; 14945f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 14952324512285caac0332bbbc6e4cab6245d2a370a1Ted Kremenek ArraySubscriptExpr(Expr *lhs, Expr *rhs, QualType t, 149673d0d4fac161ed12926e010dcf8b448a8de6a2ecChris Lattner SourceLocation rbracketloc) 14972850784bda09416fc7e9d57f5baa36c9351c757cSebastian Redl : Expr(ArraySubscriptExprClass, t, 14982850784bda09416fc7e9d57f5baa36c9351c757cSebastian Redl lhs->isTypeDependent() || rhs->isTypeDependent(), 14992850784bda09416fc7e9d57f5baa36c9351c757cSebastian Redl lhs->isValueDependent() || rhs->isValueDependent()), 15002850784bda09416fc7e9d57f5baa36c9351c757cSebastian Redl RBracketLoc(rbracketloc) { 150173d0d4fac161ed12926e010dcf8b448a8de6a2ecChris Lattner SubExprs[LHS] = lhs; 150273d0d4fac161ed12926e010dcf8b448a8de6a2ecChris Lattner SubExprs[RHS] = rhs; 150373d0d4fac161ed12926e010dcf8b448a8de6a2ecChris Lattner } 15041eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1505cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor /// \brief Create an empty array subscript expression. 1506cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor explicit ArraySubscriptExpr(EmptyShell Shell) 1507cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor : Expr(ArraySubscriptExprClass, Shell) { } 1508cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor 15092324512285caac0332bbbc6e4cab6245d2a370a1Ted Kremenek /// An array access can be written A[4] or 4[A] (both are equivalent). 15102324512285caac0332bbbc6e4cab6245d2a370a1Ted Kremenek /// - getBase() and getIdx() always present the normalized view: A[4]. 15112324512285caac0332bbbc6e4cab6245d2a370a1Ted Kremenek /// In this case getBase() returns "A" and getIdx() returns "4". 15122324512285caac0332bbbc6e4cab6245d2a370a1Ted Kremenek /// - getLHS() and getRHS() present the syntactic view. e.g. for 15132324512285caac0332bbbc6e4cab6245d2a370a1Ted Kremenek /// 4[A] getLHS() returns "4". 151433fd5c124aac15bab7cad95e4e0e7761356d2c06Christopher Lamb /// Note: Because vector element access is also written A[4] we must 151533fd5c124aac15bab7cad95e4e0e7761356d2c06Christopher Lamb /// predicate the format conversion in getBase and getIdx only on the 151633fd5c124aac15bab7cad95e4e0e7761356d2c06Christopher Lamb /// the type of the RHS, as it is possible for the LHS to be a vector of 151733fd5c124aac15bab7cad95e4e0e7761356d2c06Christopher Lamb /// integer type 15185549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getLHS() { return cast<Expr>(SubExprs[LHS]); } 15195549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek const Expr *getLHS() const { return cast<Expr>(SubExprs[LHS]); } 1520cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor void setLHS(Expr *E) { SubExprs[LHS] = E; } 1521cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor 15225549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getRHS() { return cast<Expr>(SubExprs[RHS]); } 15235549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek const Expr *getRHS() const { return cast<Expr>(SubExprs[RHS]); } 1524cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor void setRHS(Expr *E) { SubExprs[RHS] = E; } 15251eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 15261eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump Expr *getBase() { 15275549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek return cast<Expr>(getRHS()->getType()->isIntegerType() ? getLHS():getRHS()); 152877ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek } 15291eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 15301eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump const Expr *getBase() const { 15315549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek return cast<Expr>(getRHS()->getType()->isIntegerType() ? getLHS():getRHS()); 15322324512285caac0332bbbc6e4cab6245d2a370a1Ted Kremenek } 15331eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 15341eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump Expr *getIdx() { 15355549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek return cast<Expr>(getRHS()->getType()->isIntegerType() ? getRHS():getLHS()); 15362324512285caac0332bbbc6e4cab6245d2a370a1Ted Kremenek } 15371eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 153877ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek const Expr *getIdx() const { 15395549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek return cast<Expr>(getRHS()->getType()->isIntegerType() ? getRHS():getLHS()); 15401eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump } 15411eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 15421eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump virtual SourceRange getSourceRange() const { 154377ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek return SourceRange(getLHS()->getLocStart(), RBracketLoc); 15445f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 15451eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1546026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner SourceLocation getRBracketLoc() const { return RBracketLoc; } 1547cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor void setRBracketLoc(SourceLocation L) { RBracketLoc = L; } 1548cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor 15495cd9d6daf3acd4cc87fecebd81d9495b9e4ba9cdChris Lattner virtual SourceLocation getExprLoc() const { return getBase()->getExprLoc(); } 15505f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 15511eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 15521eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == ArraySubscriptExprClass; 15535f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 15545f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const ArraySubscriptExpr *) { return true; } 15551eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 155677ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek // Iterators 155777ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_begin(); 155877ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_end(); 15595f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 15605f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 15615f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1562b4609806e9232593ece09ce08b630836e825865cDouglas Gregor/// CallExpr - Represents a function call (C99 6.5.2.2, C++ [expr.call]). 15631eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// CallExpr itself represents a normal function call, e.g., "f(x, 2)", 1564b4609806e9232593ece09ce08b630836e825865cDouglas Gregor/// while its subclasses may represent alternative syntax that (semantically) 15651eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// results in a function call. For example, CXXOperatorCallExpr is 1566b4609806e9232593ece09ce08b630836e825865cDouglas Gregor/// a subclass for overloaded operator calls that use operator syntax, e.g., 1567b4609806e9232593ece09ce08b630836e825865cDouglas Gregor/// "str1 + str2" to resolve to a function call. 15685f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass CallExpr : public Expr { 156977ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek enum { FN=0, ARGS_START=1 }; 15705549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Stmt **SubExprs; 15715f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer unsigned NumArgs; 15725f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation RParenLoc; 15731eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1574b4609806e9232593ece09ce08b630836e825865cDouglas Gregorprotected: 1575b4609806e9232593ece09ce08b630836e825865cDouglas Gregor // This version of the constructor is for derived classes. 1576668bf91d31265b6ea8c3eb854ba450857701f269Ted Kremenek CallExpr(ASTContext& C, StmtClass SC, Expr *fn, Expr **args, unsigned numargs, 1577668bf91d31265b6ea8c3eb854ba450857701f269Ted Kremenek QualType t, SourceLocation rparenloc); 157842602bb40aefcc2751d4078ba88aacf4d965c9bdDouglas Gregor 15795f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 15801eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump CallExpr(ASTContext& C, Expr *fn, Expr **args, unsigned numargs, QualType t, 15815f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation rparenloc); 15821eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 15831f0d0133b0e8d1f01f63951ee04927796b34740dDouglas Gregor /// \brief Build an empty call expression. 1584ba0a9006dbc4814e1e35f82812cb5a1dad65e8b8Argyrios Kyrtzidis CallExpr(ASTContext &C, StmtClass SC, EmptyShell Empty); 15851f0d0133b0e8d1f01f63951ee04927796b34740dDouglas Gregor 15865549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek const Expr *getCallee() const { return cast<Expr>(SubExprs[FN]); } 15875549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getCallee() { return cast<Expr>(SubExprs[FN]); } 158818b2515e1bf8c86a4900792692e42fe1296be28dChris Lattner void setCallee(Expr *F) { SubExprs[FN] = F; } 1589a00425414e8c209cabc25d1826b200aeb94259afZhongxing Xu 1590d20254f2875d0004c57ee766f258dbcee29f4841Nuno Lopes Decl *getCalleeDecl(); 1591d20254f2875d0004c57ee766f258dbcee29f4841Nuno Lopes const Decl *getCalleeDecl() const { 1592d20254f2875d0004c57ee766f258dbcee29f4841Nuno Lopes return const_cast<CallExpr*>(this)->getCalleeDecl(); 1593d20254f2875d0004c57ee766f258dbcee29f4841Nuno Lopes } 1594d20254f2875d0004c57ee766f258dbcee29f4841Nuno Lopes 1595a00425414e8c209cabc25d1826b200aeb94259afZhongxing Xu /// \brief If the callee is a FunctionDecl, return it. Otherwise return 0. 1596a00425414e8c209cabc25d1826b200aeb94259afZhongxing Xu FunctionDecl *getDirectCallee(); 1597bc8d42c6f1565c0b2f93ad524edebfd7a4e6cac6Chris Lattner const FunctionDecl *getDirectCallee() const { 1598bc8d42c6f1565c0b2f93ad524edebfd7a4e6cac6Chris Lattner return const_cast<CallExpr*>(this)->getDirectCallee(); 1599bc8d42c6f1565c0b2f93ad524edebfd7a4e6cac6Chris Lattner } 1600a00425414e8c209cabc25d1826b200aeb94259afZhongxing Xu 16015f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// getNumArgs - Return the number of actual arguments to this call. 16025f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// 16035f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer unsigned getNumArgs() const { return NumArgs; } 16041eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 16055f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// getArg - Return the specified argument. 16065f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Expr *getArg(unsigned Arg) { 16075f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer assert(Arg < NumArgs && "Arg access out of range!"); 16085549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek return cast<Expr>(SubExprs[Arg+ARGS_START]); 16095f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 16105f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer const Expr *getArg(unsigned Arg) const { 16115f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer assert(Arg < NumArgs && "Arg access out of range!"); 16125549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek return cast<Expr>(SubExprs[Arg+ARGS_START]); 16135f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 16141eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1615934f276cc5b45e19cd12ebb2d04fd7972a23865cSteve Naroff /// setArg - Set the specified argument. 1616934f276cc5b45e19cd12ebb2d04fd7972a23865cSteve Naroff void setArg(unsigned Arg, Expr *ArgExpr) { 1617934f276cc5b45e19cd12ebb2d04fd7972a23865cSteve Naroff assert(Arg < NumArgs && "Arg access out of range!"); 1618934f276cc5b45e19cd12ebb2d04fd7972a23865cSteve Naroff SubExprs[Arg+ARGS_START] = ArgExpr; 1619934f276cc5b45e19cd12ebb2d04fd7972a23865cSteve Naroff } 16201eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1621d18b3299debb7b0dbd9d34d9369189dc98c87f53Chris Lattner /// setNumArgs - This changes the number of arguments present in this call. 1622d18b3299debb7b0dbd9d34d9369189dc98c87f53Chris Lattner /// Any orphaned expressions are deleted by this, and any new operands are set 1623d18b3299debb7b0dbd9d34d9369189dc98c87f53Chris Lattner /// to null. 16248189cde56b4f6f938cd65f53c932fe1860d0204cTed Kremenek void setNumArgs(ASTContext& C, unsigned NumArgs); 16251eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 16265549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek typedef ExprIterator arg_iterator; 16275549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek typedef ConstExprIterator const_arg_iterator; 16281eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1629d18b3299debb7b0dbd9d34d9369189dc98c87f53Chris Lattner arg_iterator arg_begin() { return SubExprs+ARGS_START; } 1630d18b3299debb7b0dbd9d34d9369189dc98c87f53Chris Lattner arg_iterator arg_end() { return SubExprs+ARGS_START+getNumArgs(); } 16315549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek const_arg_iterator arg_begin() const { return SubExprs+ARGS_START; } 16325549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek const_arg_iterator arg_end() const { return SubExprs+ARGS_START+getNumArgs();} 16331eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 16345f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// getNumCommas - Return the number of commas that must have been present in 16355f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// this function call. 16365f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer unsigned getNumCommas() const { return NumArgs ? NumArgs - 1 : 0; } 16375f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1638cb888967400a03504c88acedd5248d6778a82f46Chris Lattner /// isBuiltinCall - If this is a call to a builtin, return the builtin ID. If 1639cb888967400a03504c88acedd5248d6778a82f46Chris Lattner /// not, return 0. 16403c385e5f8d9008fff18597ca302be19fa86e51f6Douglas Gregor unsigned isBuiltinCall(ASTContext &Context) const; 16411eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 16421eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /// getCallReturnType - Get the return type of the call expr. This is not 16431eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /// always the type of the expr itself, if the return type is a reference 16446dde78f744382a5627a04f984a97049e0c4b5e73Anders Carlsson /// type. 16456dde78f744382a5627a04f984a97049e0c4b5e73Anders Carlsson QualType getCallReturnType() const; 16461eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1647d18b3299debb7b0dbd9d34d9369189dc98c87f53Chris Lattner SourceLocation getRParenLoc() const { return RParenLoc; } 16481f0d0133b0e8d1f01f63951ee04927796b34740dDouglas Gregor void setRParenLoc(SourceLocation L) { RParenLoc = L; } 1649866b5c03e3b9c01cf496ad97b85a05afc917345bTed Kremenek 16501eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump virtual SourceRange getSourceRange() const { 165177ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek return SourceRange(getCallee()->getLocStart(), RParenLoc); 16525f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 16531eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 16541eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 16554bfe1968410ea8ffe3b4f629addd7c4bcf484765Sean Hunt return T->getStmtClass() >= firstCallExprConstant && 16564bfe1968410ea8ffe3b4f629addd7c4bcf484765Sean Hunt T->getStmtClass() <= lastCallExprConstant; 16575f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 16585f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const CallExpr *) { return true; } 165988a3514f36de96b19cdf50141c640df1a5f13f6cDouglas Gregor 166077ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek // Iterators 166177ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_begin(); 166277ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_end(); 16635f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 16645f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1665ddca44e86281bb7dcf5fdcaf1563434c524e3861Chris Lattner/// MemberExpr - [C99 6.5.2.3] Structure and Union Members. X->F and X.F. 16665f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 16675f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass MemberExpr : public Expr { 16686bb8017bb9e828d118e15e59d71c66bba323c364John McCall /// Extra data stored in some member expressions. 16696bb8017bb9e828d118e15e59d71c66bba323c364John McCall struct MemberNameQualifier : public NameQualifier { 1670161755a09898c95d21bfff33707da9ca41cd53c5John McCall DeclAccessPair FoundDecl; 16716bb8017bb9e828d118e15e59d71c66bba323c364John McCall }; 16726bb8017bb9e828d118e15e59d71c66bba323c364John McCall 1673ddca44e86281bb7dcf5fdcaf1563434c524e3861Chris Lattner /// Base - the expression for the base pointer or structure references. In 1674ddca44e86281bb7dcf5fdcaf1563434c524e3861Chris Lattner /// X.F, this is "X". 16755549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Stmt *Base; 16761eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1677ddca44e86281bb7dcf5fdcaf1563434c524e3861Chris Lattner /// MemberDecl - This is the decl being referenced by the field/member name. 1678ddca44e86281bb7dcf5fdcaf1563434c524e3861Chris Lattner /// In X.F, this is the decl referenced by F. 1679f595cc41c4d95fe323f8a2b209523de9956f874dEli Friedman ValueDecl *MemberDecl; 16801eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1681ddca44e86281bb7dcf5fdcaf1563434c524e3861Chris Lattner /// MemberLoc - This is the location of the member name. 16825f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation MemberLoc; 16831eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 16842577743c5650c646fb705df01403707e94f2df04Abramo Bagnara /// MemberDNLoc - Provides source/type location info for the 16852577743c5650c646fb705df01403707e94f2df04Abramo Bagnara /// declaration name embedded in MemberDecl. 16862577743c5650c646fb705df01403707e94f2df04Abramo Bagnara DeclarationNameLoc MemberDNLoc; 16872577743c5650c646fb705df01403707e94f2df04Abramo Bagnara 1688ddca44e86281bb7dcf5fdcaf1563434c524e3861Chris Lattner /// IsArrow - True if this is "X->F", false if this is "X.F". 168983f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor bool IsArrow : 1; 16901eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 169183f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor /// \brief True if this member expression used a nested-name-specifier to 16926bb8017bb9e828d118e15e59d71c66bba323c364John McCall /// refer to the member, e.g., "x->Base::f", or found its member via a using 16936bb8017bb9e828d118e15e59d71c66bba323c364John McCall /// declaration. When true, a MemberNameQualifier 1694c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor /// structure is allocated immediately after the MemberExpr. 16956bb8017bb9e828d118e15e59d71c66bba323c364John McCall bool HasQualifierOrFoundDecl : 1; 16961eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1697c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor /// \brief True if this member expression specified a template argument list 1698c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor /// explicitly, e.g., x->f<int>. When true, an ExplicitTemplateArgumentList 1699c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor /// structure (and its TemplateArguments) are allocated immediately after 1700c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor /// the MemberExpr or, if the member expression also has a qualifier, after 17016bb8017bb9e828d118e15e59d71c66bba323c364John McCall /// the MemberNameQualifier structure. 1702c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor bool HasExplicitTemplateArgumentList : 1; 17031eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 170483f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor /// \brief Retrieve the qualifier that preceded the member name, if any. 17056bb8017bb9e828d118e15e59d71c66bba323c364John McCall MemberNameQualifier *getMemberQualifier() { 17066bb8017bb9e828d118e15e59d71c66bba323c364John McCall assert(HasQualifierOrFoundDecl); 17076bb8017bb9e828d118e15e59d71c66bba323c364John McCall return reinterpret_cast<MemberNameQualifier *> (this + 1); 170883f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor } 170983f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor 171083f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor /// \brief Retrieve the qualifier that preceded the member name, if any. 17116bb8017bb9e828d118e15e59d71c66bba323c364John McCall const MemberNameQualifier *getMemberQualifier() const { 1712c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor return const_cast<MemberExpr *>(this)->getMemberQualifier(); 1713c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor } 17141eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 17155f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 1716f595cc41c4d95fe323f8a2b209523de9956f874dEli Friedman MemberExpr(Expr *base, bool isarrow, ValueDecl *memberdecl, 17172577743c5650c646fb705df01403707e94f2df04Abramo Bagnara const DeclarationNameInfo &NameInfo, QualType ty) 17182577743c5650c646fb705df01403707e94f2df04Abramo Bagnara : Expr(MemberExprClass, ty, 17192577743c5650c646fb705df01403707e94f2df04Abramo Bagnara base->isTypeDependent(), base->isValueDependent()), 17202577743c5650c646fb705df01403707e94f2df04Abramo Bagnara Base(base), MemberDecl(memberdecl), MemberLoc(NameInfo.getLoc()), 17212577743c5650c646fb705df01403707e94f2df04Abramo Bagnara MemberDNLoc(NameInfo.getInfo()), IsArrow(isarrow), 17222577743c5650c646fb705df01403707e94f2df04Abramo Bagnara HasQualifierOrFoundDecl(false), HasExplicitTemplateArgumentList(false) { 17232577743c5650c646fb705df01403707e94f2df04Abramo Bagnara assert(memberdecl->getDeclName() == NameInfo.getName()); 17242577743c5650c646fb705df01403707e94f2df04Abramo Bagnara } 17252577743c5650c646fb705df01403707e94f2df04Abramo Bagnara 17262577743c5650c646fb705df01403707e94f2df04Abramo Bagnara // NOTE: this constructor should be used only when it is known that 17272577743c5650c646fb705df01403707e94f2df04Abramo Bagnara // the member name can not provide additional syntactic info 17282577743c5650c646fb705df01403707e94f2df04Abramo Bagnara // (i.e., source locations for C++ operator names or type source info 17292577743c5650c646fb705df01403707e94f2df04Abramo Bagnara // for constructors, destructors and conversion oeprators). 17302577743c5650c646fb705df01403707e94f2df04Abramo Bagnara MemberExpr(Expr *base, bool isarrow, ValueDecl *memberdecl, 1731f595cc41c4d95fe323f8a2b209523de9956f874dEli Friedman SourceLocation l, QualType ty) 17321eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump : Expr(MemberExprClass, ty, 1733ffce2df6ae280d354d51371282a579df1eb86876Anders Carlsson base->isTypeDependent(), base->isValueDependent()), 17342577743c5650c646fb705df01403707e94f2df04Abramo Bagnara Base(base), MemberDecl(memberdecl), MemberLoc(l), MemberDNLoc(), 17352577743c5650c646fb705df01403707e94f2df04Abramo Bagnara IsArrow(isarrow), 17366bb8017bb9e828d118e15e59d71c66bba323c364John McCall HasQualifierOrFoundDecl(false), HasExplicitTemplateArgumentList(false) {} 1737510190777c4bd53e960eea4665b204778fec1b64Eli Friedman 17381eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static MemberExpr *Create(ASTContext &C, Expr *base, bool isarrow, 173983f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor NestedNameSpecifier *qual, SourceRange qualrange, 1740161755a09898c95d21bfff33707da9ca41cd53c5John McCall ValueDecl *memberdecl, DeclAccessPair founddecl, 17412577743c5650c646fb705df01403707e94f2df04Abramo Bagnara DeclarationNameInfo MemberNameInfo, 1742d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall const TemplateArgumentListInfo *targs, 1743c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor QualType ty); 17441eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 174588a3514f36de96b19cdf50141c640df1a5f13f6cDouglas Gregor void setBase(Expr *E) { Base = E; } 17465549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getBase() const { return cast<Expr>(Base); } 174757e8b05fe9ba03d410db9c161e032cb79c9ab5baDouglas Gregor 174857e8b05fe9ba03d410db9c161e032cb79c9ab5baDouglas Gregor /// \brief Retrieve the member declaration to which this expression refers. 174957e8b05fe9ba03d410db9c161e032cb79c9ab5baDouglas Gregor /// 175057e8b05fe9ba03d410db9c161e032cb79c9ab5baDouglas Gregor /// The returned declaration will either be a FieldDecl or (in C++) 175157e8b05fe9ba03d410db9c161e032cb79c9ab5baDouglas Gregor /// a CXXMethodDecl. 1752f595cc41c4d95fe323f8a2b209523de9956f874dEli Friedman ValueDecl *getMemberDecl() const { return MemberDecl; } 1753f595cc41c4d95fe323f8a2b209523de9956f874dEli Friedman void setMemberDecl(ValueDecl *D) { MemberDecl = D; } 17541f0d0133b0e8d1f01f63951ee04927796b34740dDouglas Gregor 17556bb8017bb9e828d118e15e59d71c66bba323c364John McCall /// \brief Retrieves the declaration found by lookup. 1756161755a09898c95d21bfff33707da9ca41cd53c5John McCall DeclAccessPair getFoundDecl() const { 17576bb8017bb9e828d118e15e59d71c66bba323c364John McCall if (!HasQualifierOrFoundDecl) 1758161755a09898c95d21bfff33707da9ca41cd53c5John McCall return DeclAccessPair::make(getMemberDecl(), 1759161755a09898c95d21bfff33707da9ca41cd53c5John McCall getMemberDecl()->getAccess()); 17606bb8017bb9e828d118e15e59d71c66bba323c364John McCall return getMemberQualifier()->FoundDecl; 17616bb8017bb9e828d118e15e59d71c66bba323c364John McCall } 17626bb8017bb9e828d118e15e59d71c66bba323c364John McCall 17631eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /// \brief Determines whether this member expression actually had 17640979c805475d1ba49b5d6ef93c4d2ce6d2eab6edDouglas Gregor /// a C++ nested-name-specifier prior to the name of the member, e.g., 17650979c805475d1ba49b5d6ef93c4d2ce6d2eab6edDouglas Gregor /// x->Base::foo. 17666bb8017bb9e828d118e15e59d71c66bba323c364John McCall bool hasQualifier() const { return getQualifier() != 0; } 17671eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 176883f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor /// \brief If the member name was qualified, retrieves the source range of 176983f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor /// the nested-name-specifier that precedes the member name. Otherwise, 177083f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor /// returns an empty source range. 17711eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump SourceRange getQualifierRange() const { 17726bb8017bb9e828d118e15e59d71c66bba323c364John McCall if (!HasQualifierOrFoundDecl) 177383f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor return SourceRange(); 17741eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 177583f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor return getMemberQualifier()->Range; 177683f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor } 17771eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 17781eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /// \brief If the member name was qualified, retrieves the 177983f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor /// nested-name-specifier that precedes the member name. Otherwise, returns 178083f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor /// NULL. 17811eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump NestedNameSpecifier *getQualifier() const { 17826bb8017bb9e828d118e15e59d71c66bba323c364John McCall if (!HasQualifierOrFoundDecl) 178383f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor return 0; 17841eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 178583f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor return getMemberQualifier()->NNS; 178683f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor } 1787c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor 1788c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor /// \brief Determines whether this member expression actually had a C++ 1789c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor /// template argument list explicitly specified, e.g., x.f<int>. 1790096832c5ed5b9106fa177ebc148489760c3bc496John McCall bool hasExplicitTemplateArgs() const { 17911eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return HasExplicitTemplateArgumentList; 1792c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor } 17931eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1794d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall /// \brief Copies the template arguments (if present) into the given 1795d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall /// structure. 1796d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall void copyTemplateArgumentsInto(TemplateArgumentListInfo &List) const { 1797096832c5ed5b9106fa177ebc148489760c3bc496John McCall if (hasExplicitTemplateArgs()) 1798096832c5ed5b9106fa177ebc148489760c3bc496John McCall getExplicitTemplateArgs().copyInto(List); 1799096832c5ed5b9106fa177ebc148489760c3bc496John McCall } 1800096832c5ed5b9106fa177ebc148489760c3bc496John McCall 1801096832c5ed5b9106fa177ebc148489760c3bc496John McCall /// \brief Retrieve the explicit template argument list that 1802096832c5ed5b9106fa177ebc148489760c3bc496John McCall /// follow the member template name. This must only be called on an 1803096832c5ed5b9106fa177ebc148489760c3bc496John McCall /// expression with explicit template arguments. 1804096832c5ed5b9106fa177ebc148489760c3bc496John McCall ExplicitTemplateArgumentList &getExplicitTemplateArgs() { 1805096832c5ed5b9106fa177ebc148489760c3bc496John McCall assert(HasExplicitTemplateArgumentList); 1806096832c5ed5b9106fa177ebc148489760c3bc496John McCall if (!HasQualifierOrFoundDecl) 1807096832c5ed5b9106fa177ebc148489760c3bc496John McCall return *reinterpret_cast<ExplicitTemplateArgumentList *>(this + 1); 1808096832c5ed5b9106fa177ebc148489760c3bc496John McCall 1809096832c5ed5b9106fa177ebc148489760c3bc496John McCall return *reinterpret_cast<ExplicitTemplateArgumentList *>( 1810096832c5ed5b9106fa177ebc148489760c3bc496John McCall getMemberQualifier() + 1); 1811096832c5ed5b9106fa177ebc148489760c3bc496John McCall } 1812096832c5ed5b9106fa177ebc148489760c3bc496John McCall 1813096832c5ed5b9106fa177ebc148489760c3bc496John McCall /// \brief Retrieve the explicit template argument list that 1814096832c5ed5b9106fa177ebc148489760c3bc496John McCall /// followed the member template name. This must only be called on 1815096832c5ed5b9106fa177ebc148489760c3bc496John McCall /// an expression with explicit template arguments. 1816096832c5ed5b9106fa177ebc148489760c3bc496John McCall const ExplicitTemplateArgumentList &getExplicitTemplateArgs() const { 1817096832c5ed5b9106fa177ebc148489760c3bc496John McCall return const_cast<MemberExpr *>(this)->getExplicitTemplateArgs(); 1818096832c5ed5b9106fa177ebc148489760c3bc496John McCall } 1819096832c5ed5b9106fa177ebc148489760c3bc496John McCall 1820096832c5ed5b9106fa177ebc148489760c3bc496John McCall /// \brief Retrieves the optional explicit template arguments. 1821096832c5ed5b9106fa177ebc148489760c3bc496John McCall /// This points to the same data as getExplicitTemplateArgs(), but 1822096832c5ed5b9106fa177ebc148489760c3bc496John McCall /// returns null if there are no explicit template arguments. 1823096832c5ed5b9106fa177ebc148489760c3bc496John McCall const ExplicitTemplateArgumentList *getOptionalExplicitTemplateArgs() const { 1824096832c5ed5b9106fa177ebc148489760c3bc496John McCall if (!hasExplicitTemplateArgs()) return 0; 1825096832c5ed5b9106fa177ebc148489760c3bc496John McCall return &getExplicitTemplateArgs(); 1826d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall } 1827c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 18281eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /// \brief Retrieve the location of the left angle bracket following the 1829c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor /// member name ('<'), if any. 18301eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump SourceLocation getLAngleLoc() const { 1831c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor if (!HasExplicitTemplateArgumentList) 1832c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor return SourceLocation(); 18331eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1834096832c5ed5b9106fa177ebc148489760c3bc496John McCall return getExplicitTemplateArgs().LAngleLoc; 1835c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor } 18361eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1837c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor /// \brief Retrieve the template arguments provided as part of this 1838c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor /// template-id. 1839833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall const TemplateArgumentLoc *getTemplateArgs() const { 1840c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor if (!HasExplicitTemplateArgumentList) 18411eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return 0; 18421eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1843096832c5ed5b9106fa177ebc148489760c3bc496John McCall return getExplicitTemplateArgs().getTemplateArgs(); 1844c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor } 18451eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1846c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor /// \brief Retrieve the number of template arguments provided as part of this 1847c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor /// template-id. 18481eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump unsigned getNumTemplateArgs() const { 1849c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor if (!HasExplicitTemplateArgumentList) 18501eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return 0; 18511eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1852096832c5ed5b9106fa177ebc148489760c3bc496John McCall return getExplicitTemplateArgs().NumTemplateArgs; 1853c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor } 18541eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 18551eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /// \brief Retrieve the location of the right angle bracket following the 1856c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor /// template arguments ('>'). 18571eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump SourceLocation getRAngleLoc() const { 1858c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor if (!HasExplicitTemplateArgumentList) 1859c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor return SourceLocation(); 18601eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1861096832c5ed5b9106fa177ebc148489760c3bc496John McCall return getExplicitTemplateArgs().RAngleLoc; 1862c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor } 18631eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 18642577743c5650c646fb705df01403707e94f2df04Abramo Bagnara /// \brief Retrieve the member declaration name info. 18652577743c5650c646fb705df01403707e94f2df04Abramo Bagnara DeclarationNameInfo getMemberNameInfo() const { 18662577743c5650c646fb705df01403707e94f2df04Abramo Bagnara return DeclarationNameInfo(MemberDecl->getDeclName(), 18672577743c5650c646fb705df01403707e94f2df04Abramo Bagnara MemberLoc, MemberDNLoc); 18682577743c5650c646fb705df01403707e94f2df04Abramo Bagnara } 18692577743c5650c646fb705df01403707e94f2df04Abramo Bagnara 18705f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool isArrow() const { return IsArrow; } 18711f0d0133b0e8d1f01f63951ee04927796b34740dDouglas Gregor void setArrow(bool A) { IsArrow = A; } 18721f0d0133b0e8d1f01f63951ee04927796b34740dDouglas Gregor 1873ddca44e86281bb7dcf5fdcaf1563434c524e3861Chris Lattner /// getMemberLoc - Return the location of the "member", in X->F, it is the 1874ddca44e86281bb7dcf5fdcaf1563434c524e3861Chris Lattner /// location of 'F'. 1875026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner SourceLocation getMemberLoc() const { return MemberLoc; } 18761f0d0133b0e8d1f01f63951ee04927796b34740dDouglas Gregor void setMemberLoc(SourceLocation L) { MemberLoc = L; } 18775f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 18785f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer virtual SourceRange getSourceRange() const { 187972527137c521ad9330ecb81ccd841159719dc8cdEli Friedman // If we have an implicit base (like a C++ implicit this), 188072527137c521ad9330ecb81ccd841159719dc8cdEli Friedman // make sure not to return its location 18812577743c5650c646fb705df01403707e94f2df04Abramo Bagnara SourceLocation EndLoc = (HasExplicitTemplateArgumentList) 18822577743c5650c646fb705df01403707e94f2df04Abramo Bagnara ? getRAngleLoc() : getMemberNameInfo().getEndLoc(); 18831eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 188472527137c521ad9330ecb81ccd841159719dc8cdEli Friedman SourceLocation BaseLoc = getBase()->getLocStart(); 188572527137c521ad9330ecb81ccd841159719dc8cdEli Friedman if (BaseLoc.isInvalid()) 1886c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor return SourceRange(MemberLoc, EndLoc); 1887c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor return SourceRange(BaseLoc, EndLoc); 18885f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 18891eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 18905f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer virtual SourceLocation getExprLoc() const { return MemberLoc; } 18915f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 18921eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 189383f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor return T->getStmtClass() == MemberExprClass; 18945f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 18955f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const MemberExpr *) { return true; } 18961eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 18971237c673c07f9d827129ba02720108816abde562Ted Kremenek // Iterators 18981237c673c07f9d827129ba02720108816abde562Ted Kremenek virtual child_iterator child_begin(); 18991237c673c07f9d827129ba02720108816abde562Ted Kremenek virtual child_iterator child_end(); 19005f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 19015f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 19021eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// CompoundLiteralExpr - [C99 6.5.2.5] 1903aff1edd84aaafef15b737acd8ec61abcca6d6bc3Steve Naroff/// 1904aff1edd84aaafef15b737acd8ec61abcca6d6bc3Steve Naroffclass CompoundLiteralExpr : public Expr { 19050fc53dfc7a33f68e71ef245389c4e7cd34a62a39Chris Lattner /// LParenLoc - If non-null, this is the location of the left paren in a 19060fc53dfc7a33f68e71ef245389c4e7cd34a62a39Chris Lattner /// compound literal like "(int){4}". This can be null if this is a 19070fc53dfc7a33f68e71ef245389c4e7cd34a62a39Chris Lattner /// synthesized compound expression. 19080fc53dfc7a33f68e71ef245389c4e7cd34a62a39Chris Lattner SourceLocation LParenLoc; 19091d7d8d66eff7ed0f3e957d330930cc9ab8047addJohn McCall 19101d7d8d66eff7ed0f3e957d330930cc9ab8047addJohn McCall /// The type as written. This can be an incomplete array type, in 19111d7d8d66eff7ed0f3e957d330930cc9ab8047addJohn McCall /// which case the actual expression type will be different. 191242f56b50062cd3b3c6b23fdb9053578ae9145664John McCall TypeSourceInfo *TInfo; 19135549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Stmt *Init; 1914e9b12198c4cc7f5687960100351b4af006c14469Steve Naroff bool FileScope; 1915aff1edd84aaafef15b737acd8ec61abcca6d6bc3Steve Naroffpublic: 19162333f7727f97018d6742e1e0938133bcfad967abEli Friedman // FIXME: Can compound literals be value-dependent? 191742f56b50062cd3b3c6b23fdb9053578ae9145664John McCall CompoundLiteralExpr(SourceLocation lparenloc, TypeSourceInfo *tinfo, 19181d7d8d66eff7ed0f3e957d330930cc9ab8047addJohn McCall QualType T, Expr *init, bool fileScope) 19191d7d8d66eff7ed0f3e957d330930cc9ab8047addJohn McCall : Expr(CompoundLiteralExprClass, T, 192042f56b50062cd3b3c6b23fdb9053578ae9145664John McCall tinfo->getType()->isDependentType(), false), 192142f56b50062cd3b3c6b23fdb9053578ae9145664John McCall LParenLoc(lparenloc), TInfo(tinfo), Init(init), FileScope(fileScope) {} 19221eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1923ba6d7e7fa5f79959d3eef39adb5620d845ba5198Douglas Gregor /// \brief Construct an empty compound literal. 1924ba6d7e7fa5f79959d3eef39adb5620d845ba5198Douglas Gregor explicit CompoundLiteralExpr(EmptyShell Empty) 1925ba6d7e7fa5f79959d3eef39adb5620d845ba5198Douglas Gregor : Expr(CompoundLiteralExprClass, Empty) { } 1926ba6d7e7fa5f79959d3eef39adb5620d845ba5198Douglas Gregor 19275549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek const Expr *getInitializer() const { return cast<Expr>(Init); } 19285549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getInitializer() { return cast<Expr>(Init); } 1929ba6d7e7fa5f79959d3eef39adb5620d845ba5198Douglas Gregor void setInitializer(Expr *E) { Init = E; } 1930e9b12198c4cc7f5687960100351b4af006c14469Steve Naroff 1931e9b12198c4cc7f5687960100351b4af006c14469Steve Naroff bool isFileScope() const { return FileScope; } 1932ba6d7e7fa5f79959d3eef39adb5620d845ba5198Douglas Gregor void setFileScope(bool FS) { FileScope = FS; } 1933ba6d7e7fa5f79959d3eef39adb5620d845ba5198Douglas Gregor 19340fc53dfc7a33f68e71ef245389c4e7cd34a62a39Chris Lattner SourceLocation getLParenLoc() const { return LParenLoc; } 1935ba6d7e7fa5f79959d3eef39adb5620d845ba5198Douglas Gregor void setLParenLoc(SourceLocation L) { LParenLoc = L; } 1936ba6d7e7fa5f79959d3eef39adb5620d845ba5198Douglas Gregor 193742f56b50062cd3b3c6b23fdb9053578ae9145664John McCall TypeSourceInfo *getTypeSourceInfo() const { return TInfo; } 193842f56b50062cd3b3c6b23fdb9053578ae9145664John McCall void setTypeSourceInfo(TypeSourceInfo* tinfo) { TInfo = tinfo; } 193942f56b50062cd3b3c6b23fdb9053578ae9145664John McCall 194073d0d4fac161ed12926e010dcf8b448a8de6a2ecChris Lattner virtual SourceRange getSourceRange() const { 19410fc53dfc7a33f68e71ef245389c4e7cd34a62a39Chris Lattner // FIXME: Init should never be null. 19420fc53dfc7a33f68e71ef245389c4e7cd34a62a39Chris Lattner if (!Init) 19430fc53dfc7a33f68e71ef245389c4e7cd34a62a39Chris Lattner return SourceRange(); 19440fc53dfc7a33f68e71ef245389c4e7cd34a62a39Chris Lattner if (LParenLoc.isInvalid()) 194573d0d4fac161ed12926e010dcf8b448a8de6a2ecChris Lattner return Init->getSourceRange(); 19460fc53dfc7a33f68e71ef245389c4e7cd34a62a39Chris Lattner return SourceRange(LParenLoc, Init->getLocEnd()); 194773d0d4fac161ed12926e010dcf8b448a8de6a2ecChris Lattner } 1948aff1edd84aaafef15b737acd8ec61abcca6d6bc3Steve Naroff 19491eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 19501eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == CompoundLiteralExprClass; 1951aff1edd84aaafef15b737acd8ec61abcca6d6bc3Steve Naroff } 1952aff1edd84aaafef15b737acd8ec61abcca6d6bc3Steve Naroff static bool classof(const CompoundLiteralExpr *) { return true; } 19531eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 19541237c673c07f9d827129ba02720108816abde562Ted Kremenek // Iterators 19551237c673c07f9d827129ba02720108816abde562Ted Kremenek virtual child_iterator child_begin(); 19561237c673c07f9d827129ba02720108816abde562Ted Kremenek virtual child_iterator child_end(); 1957aff1edd84aaafef15b737acd8ec61abcca6d6bc3Steve Naroff}; 1958aff1edd84aaafef15b737acd8ec61abcca6d6bc3Steve Naroff 195949badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// CastExpr - Base class for type casts, including both implicit 196049badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// casts (ImplicitCastExpr) and explicit casts that have some 196149badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// representation in the source code (ExplicitCastExpr's derived 196249badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// classes). 19630835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidisclass CastExpr : public Expr { 1964cdef2b75aa60cde1ca00e0aa3f89139ac89c6ae4Anders Carlssonpublic: 19655baba9d98364a3525d6afa15a04cdad82fd6dd30John McCall typedef clang::CastKind CastKind; 19661eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1967cdef2b75aa60cde1ca00e0aa3f89139ac89c6ae4Anders Carlssonprivate: 1968f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall unsigned Kind : 5; 1969f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall unsigned BasePathSize : BitsRemaining - 5; 19700835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis Stmt *Op; 1971409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson 19727ab9d574d27ecee1f130e5755aa403e5ab529b6bAnders Carlsson void CheckBasePath() const { 1973409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson#ifndef NDEBUG 1974409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson switch (getCastKind()) { 19755cf86ba6b5a724bf91cb52feade1158f1fbeb605Anders Carlsson case CK_DerivedToBase: 1976cee22421929c91b481f4d1bb85cd48c0f6b7510bAnders Carlsson case CK_UncheckedDerivedToBase: 1977cee22421929c91b481f4d1bb85cd48c0f6b7510bAnders Carlsson case CK_DerivedToBaseMemberPointer: 1978409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson case CK_BaseToDerived: 1979409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson case CK_BaseToDerivedMemberPointer: 1980f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall assert(!path_empty() && "Cast kind should have a base path!"); 1981f9d68e1dd015972318b2448f75115ff4fc3d5008Anders Carlsson break; 1982409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson 1983409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson // These should not have an inheritance path. 1984409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson case CK_Unknown: 1985409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson case CK_BitCast: 1986e39a3894513349908cdb3beba2614e53cb288e6cDouglas Gregor case CK_LValueBitCast: 1987409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson case CK_NoOp: 1988409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson case CK_Dynamic: 1989409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson case CK_ToUnion: 1990409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson case CK_ArrayToPointerDecay: 1991409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson case CK_FunctionToPointerDecay: 1992409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson case CK_NullToMemberPointer: 1993409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson case CK_UserDefinedConversion: 1994409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson case CK_ConstructorConversion: 1995409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson case CK_IntegralToPointer: 1996409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson case CK_PointerToIntegral: 1997409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson case CK_ToVoid: 1998409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson case CK_VectorSplat: 1999409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson case CK_IntegralCast: 2000409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson case CK_IntegralToFloating: 2001409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson case CK_FloatingToIntegral: 2002409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson case CK_FloatingCast: 2003409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson case CK_MemberPointerToBoolean: 2004409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson case CK_AnyPointerToObjCPointerCast: 2005409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson case CK_AnyPointerToBlockPointerCast: 2006569c3166874324c24011f8ade6978421f0d39b3cDouglas Gregor case CK_ObjCObjectLValueCast: 2007f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall assert(path_empty() && "Cast kind should not have a base path!"); 2008409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson break; 2009409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson } 2010409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson#endif 2011409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson } 2012409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson 2013f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall const CXXBaseSpecifier * const *path_buffer() const { 2014f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall return const_cast<CastExpr*>(this)->path_buffer(); 2015f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall } 2016f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall CXXBaseSpecifier **path_buffer(); 2017f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall 20180835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidisprotected: 2019409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson CastExpr(StmtClass SC, QualType ty, const CastKind kind, Expr *op, 2020f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall unsigned BasePathSize) : 2021898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor Expr(SC, ty, 2022898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // Cast expressions are type-dependent if the type is 2023898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // dependent (C++ [temp.dep.expr]p3). 2024898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor ty->isDependentType(), 2025898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // Cast expressions are value-dependent if the type is 2026898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // dependent or if the subexpression is value-dependent. 20271eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump ty->isDependentType() || (op && op->isValueDependent())), 2028f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall Kind(kind), BasePathSize(BasePathSize), Op(op) { 2029f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall CheckBasePath(); 2030f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall } 20311eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2032087fd536809ebe754d91c641a98917e02dd7452dDouglas Gregor /// \brief Construct an empty cast. 2033f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall CastExpr(StmtClass SC, EmptyShell Empty, unsigned BasePathSize) 2034f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall : Expr(SC, Empty), BasePathSize(BasePathSize) { } 20351eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 20360835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidispublic: 2037f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall CastKind getCastKind() const { return static_cast<CastKind>(Kind); } 2038cdef2b75aa60cde1ca00e0aa3f89139ac89c6ae4Anders Carlsson void setCastKind(CastKind K) { Kind = K; } 2039f8ec55a104e55961f8666f773dce99bbc628298fAnders Carlsson const char *getCastKindName() const; 2040f8ec55a104e55961f8666f773dce99bbc628298fAnders Carlsson 20410835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis Expr *getSubExpr() { return cast<Expr>(Op); } 20420835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis const Expr *getSubExpr() const { return cast<Expr>(Op); } 2043087fd536809ebe754d91c641a98917e02dd7452dDouglas Gregor void setSubExpr(Expr *E) { Op = E; } 2044087fd536809ebe754d91c641a98917e02dd7452dDouglas Gregor 20456eef519fc8a97bb7ca6066f23d35e10f06b2c1b5Douglas Gregor /// \brief Retrieve the cast subexpression as it was written in the source 20466eef519fc8a97bb7ca6066f23d35e10f06b2c1b5Douglas Gregor /// code, looking through any implicit casts or other intermediate nodes 20476eef519fc8a97bb7ca6066f23d35e10f06b2c1b5Douglas Gregor /// introduced by semantic analysis. 20486eef519fc8a97bb7ca6066f23d35e10f06b2c1b5Douglas Gregor Expr *getSubExprAsWritten(); 20496eef519fc8a97bb7ca6066f23d35e10f06b2c1b5Douglas Gregor const Expr *getSubExprAsWritten() const { 20506eef519fc8a97bb7ca6066f23d35e10f06b2c1b5Douglas Gregor return const_cast<CastExpr *>(this)->getSubExprAsWritten(); 20516eef519fc8a97bb7ca6066f23d35e10f06b2c1b5Douglas Gregor } 205241b2dcd465f1e438502c420effc9d0c747f9db8fAnders Carlsson 2053f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall typedef CXXBaseSpecifier **path_iterator; 2054f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall typedef const CXXBaseSpecifier * const *path_const_iterator; 2055f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall bool path_empty() const { return BasePathSize == 0; } 2056f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall unsigned path_size() const { return BasePathSize; } 2057f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall path_iterator path_begin() { return path_buffer(); } 2058f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall path_iterator path_end() { return path_buffer() + path_size(); } 2059f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall path_const_iterator path_begin() const { return path_buffer(); } 2060f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall path_const_iterator path_end() const { return path_buffer() + path_size(); } 2061f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall 2062f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall void setCastPath(const CXXCastPath &Path); 206341b2dcd465f1e438502c420effc9d0c747f9db8fAnders Carlsson 20641eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 20654bfe1968410ea8ffe3b4f629addd7c4bcf484765Sean Hunt return T->getStmtClass() >= firstCastExprConstant && 20664bfe1968410ea8ffe3b4f629addd7c4bcf484765Sean Hunt T->getStmtClass() <= lastCastExprConstant; 20670835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis } 20680835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis static bool classof(const CastExpr *) { return true; } 20691eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 20700835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis // Iterators 20710835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis virtual child_iterator child_begin(); 20720835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis virtual child_iterator child_end(); 20730835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis}; 20740835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis 207549badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// ImplicitCastExpr - Allows us to explicitly represent implicit type 207649badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// conversions, which have no direct representation in the original 207749badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// source code. For example: converting T[]->T*, void f()->void 207849badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// (*f)(), float->double, short->int, etc. 207949b4526992a8c8a6a290aa3efa9828154a24af8dSteve Naroff/// 2080bf3af056289893f58d37b05a2c80970708781d61Douglas Gregor/// In C, implicit casts always produce rvalues. However, in C++, an 2081bf3af056289893f58d37b05a2c80970708781d61Douglas Gregor/// implicit cast whose result is being bound to a reference will be 2082906082edf2aea1c6de2926f93a8d7121e49d2a54Sebastian Redl/// an lvalue or xvalue. For example: 2083bf3af056289893f58d37b05a2c80970708781d61Douglas Gregor/// 2084bf3af056289893f58d37b05a2c80970708781d61Douglas Gregor/// @code 2085bf3af056289893f58d37b05a2c80970708781d61Douglas Gregor/// class Base { }; 2086bf3af056289893f58d37b05a2c80970708781d61Douglas Gregor/// class Derived : public Base { }; 2087906082edf2aea1c6de2926f93a8d7121e49d2a54Sebastian Redl/// Derived &&ref(); 20881eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// void f(Derived d) { 2089906082edf2aea1c6de2926f93a8d7121e49d2a54Sebastian Redl/// Base& b = d; // initializer is an ImplicitCastExpr 2090906082edf2aea1c6de2926f93a8d7121e49d2a54Sebastian Redl/// // to an lvalue of type Base 2091906082edf2aea1c6de2926f93a8d7121e49d2a54Sebastian Redl/// Base&& r = ref(); // initializer is an ImplicitCastExpr 2092906082edf2aea1c6de2926f93a8d7121e49d2a54Sebastian Redl/// // to an xvalue of type Base 2093bf3af056289893f58d37b05a2c80970708781d61Douglas Gregor/// } 2094bf3af056289893f58d37b05a2c80970708781d61Douglas Gregor/// @endcode 20950835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidisclass ImplicitCastExpr : public CastExpr { 2096906082edf2aea1c6de2926f93a8d7121e49d2a54Sebastian Redlprivate: 2097f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall ImplicitCastExpr(QualType ty, CastKind kind, Expr *op, 20985baba9d98364a3525d6afa15a04cdad82fd6dd30John McCall unsigned BasePathLength, ExprValueKind VK) 20995baba9d98364a3525d6afa15a04cdad82fd6dd30John McCall : CastExpr(ImplicitCastExprClass, ty, kind, op, BasePathLength) { 21005baba9d98364a3525d6afa15a04cdad82fd6dd30John McCall ValueKind = VK; 21015baba9d98364a3525d6afa15a04cdad82fd6dd30John McCall } 210290045e8ebabf50d6f1b3a67081a621b20b5e5341Steve Naroff 2103087fd536809ebe754d91c641a98917e02dd7452dDouglas Gregor /// \brief Construct an empty implicit cast. 2104f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall explicit ImplicitCastExpr(EmptyShell Shell, unsigned PathSize) 2105f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall : CastExpr(ImplicitCastExprClass, Shell, PathSize) { } 2106f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall 2107f871d0cc377a1367b519a6cce26be74607566ebaJohn McCallpublic: 2108f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall enum OnStack_t { OnStack }; 2109f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall ImplicitCastExpr(OnStack_t _, QualType ty, CastKind kind, Expr *op, 21105baba9d98364a3525d6afa15a04cdad82fd6dd30John McCall ExprValueKind VK) 21115baba9d98364a3525d6afa15a04cdad82fd6dd30John McCall : CastExpr(ImplicitCastExprClass, ty, kind, op, 0) { 21125baba9d98364a3525d6afa15a04cdad82fd6dd30John McCall ValueKind = VK; 21135baba9d98364a3525d6afa15a04cdad82fd6dd30John McCall } 2114f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall 2115f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall static ImplicitCastExpr *Create(ASTContext &Context, QualType T, 2116f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall CastKind Kind, Expr *Operand, 2117f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall const CXXCastPath *BasePath, 21185baba9d98364a3525d6afa15a04cdad82fd6dd30John McCall ExprValueKind Cat); 2119f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall 2120f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall static ImplicitCastExpr *CreateEmpty(ASTContext &Context, unsigned PathSize); 2121087fd536809ebe754d91c641a98917e02dd7452dDouglas Gregor 21220835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis virtual SourceRange getSourceRange() const { 21230835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis return getSubExpr()->getSourceRange(); 21240835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis } 212590045e8ebabf50d6f1b3a67081a621b20b5e5341Steve Naroff 21265baba9d98364a3525d6afa15a04cdad82fd6dd30John McCall /// getValueKind - The value kind that this cast produces. 21275baba9d98364a3525d6afa15a04cdad82fd6dd30John McCall ExprValueKind getValueKind() const { 21285baba9d98364a3525d6afa15a04cdad82fd6dd30John McCall return static_cast<ExprValueKind>(ValueKind); 21295baba9d98364a3525d6afa15a04cdad82fd6dd30John McCall } 2130eb8f3063257a392f15aea48d42fb73ec51afc548Douglas Gregor 21315baba9d98364a3525d6afa15a04cdad82fd6dd30John McCall /// setValueKind - Set the value kind this cast produces. 21325baba9d98364a3525d6afa15a04cdad82fd6dd30John McCall void setValueKind(ExprValueKind Cat) { ValueKind = Cat; } 2133eb8f3063257a392f15aea48d42fb73ec51afc548Douglas Gregor 21341eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 21351eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == ImplicitCastExprClass; 213649b4526992a8c8a6a290aa3efa9828154a24af8dSteve Naroff } 213749b4526992a8c8a6a290aa3efa9828154a24af8dSteve Naroff static bool classof(const ImplicitCastExpr *) { return true; } 213849b4526992a8c8a6a290aa3efa9828154a24af8dSteve Naroff}; 213949b4526992a8c8a6a290aa3efa9828154a24af8dSteve Naroff 214049badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// ExplicitCastExpr - An explicit cast written in the source 21411eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// code. 214249badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// 214349badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// This class is effectively an abstract class, because it provides 214449badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// the basic representation of an explicitly-written cast without 214549badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// specifying which kind of cast (C cast, functional cast, static 214649badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// cast, etc.) was written; specific derived classes represent the 214749badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// particular style of cast and its location information. 21485f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 214949badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// Unlike implicit casts, explicit cast nodes have two different 215049badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// types: the type that was written into the source code, and the 215149badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// actual type of the expression as determined by semantic 215249badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// analysis. These types may differ slightly. For example, in C++ one 215349badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// can cast to a reference type, which indicates that the resulting 2154906082edf2aea1c6de2926f93a8d7121e49d2a54Sebastian Redl/// expression will be an lvalue or xvalue. The reference type, however, 2155906082edf2aea1c6de2926f93a8d7121e49d2a54Sebastian Redl/// will not be used as the type of the expression. 21560835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidisclass ExplicitCastExpr : public CastExpr { 21579d125033a9853f3b572a4c9e2f9e2d4e5e346973John McCall /// TInfo - Source type info for the (written) type 21589d125033a9853f3b572a4c9e2f9e2d4e5e346973John McCall /// this expression is casting to. 21599d125033a9853f3b572a4c9e2f9e2d4e5e346973John McCall TypeSourceInfo *TInfo; 216049badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor 216149badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregorprotected: 2162c0a2fd8f092722c8f78b566ac4506a21437040e9Anders Carlsson ExplicitCastExpr(StmtClass SC, QualType exprTy, CastKind kind, 2163f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall Expr *op, unsigned PathSize, TypeSourceInfo *writtenTy) 2164f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall : CastExpr(SC, exprTy, kind, op, PathSize), TInfo(writtenTy) {} 216549badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor 2166db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor /// \brief Construct an empty explicit cast. 2167f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall ExplicitCastExpr(StmtClass SC, EmptyShell Shell, unsigned PathSize) 2168f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall : CastExpr(SC, Shell, PathSize) { } 2169db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor 217049badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregorpublic: 21719d125033a9853f3b572a4c9e2f9e2d4e5e346973John McCall /// getTypeInfoAsWritten - Returns the type source info for the type 21729d125033a9853f3b572a4c9e2f9e2d4e5e346973John McCall /// that this expression is casting to. 21739d125033a9853f3b572a4c9e2f9e2d4e5e346973John McCall TypeSourceInfo *getTypeInfoAsWritten() const { return TInfo; } 21749d125033a9853f3b572a4c9e2f9e2d4e5e346973John McCall void setTypeInfoAsWritten(TypeSourceInfo *writtenTy) { TInfo = writtenTy; } 21759d125033a9853f3b572a4c9e2f9e2d4e5e346973John McCall 217649badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor /// getTypeAsWritten - Returns the type that this expression is 217749badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor /// casting to, as written in the source code. 21789d125033a9853f3b572a4c9e2f9e2d4e5e346973John McCall QualType getTypeAsWritten() const { return TInfo->getType(); } 217949badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor 21801eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 21814bfe1968410ea8ffe3b4f629addd7c4bcf484765Sean Hunt return T->getStmtClass() >= firstExplicitCastExprConstant && 21824bfe1968410ea8ffe3b4f629addd7c4bcf484765Sean Hunt T->getStmtClass() <= lastExplicitCastExprConstant; 218349badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor } 218449badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor static bool classof(const ExplicitCastExpr *) { return true; } 218549badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor}; 218649badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor 21876eec8e883de118b431e3ead5b1e604a6ac68ff6bDouglas Gregor/// CStyleCastExpr - An explicit cast in C (C99 6.5.4) or a C-style 218849badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// cast in C++ (C++ [expr.cast]), which uses the syntax 218949badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// (Type)expr. For example: @c (int)f. 21906eec8e883de118b431e3ead5b1e604a6ac68ff6bDouglas Gregorclass CStyleCastExpr : public ExplicitCastExpr { 2191b2f9e516327310d95840d442416084508f80c183Steve Naroff SourceLocation LPLoc; // the location of the left paren 2192b2f9e516327310d95840d442416084508f80c183Steve Naroff SourceLocation RPLoc; // the location of the right paren 2193f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall 21949d125033a9853f3b572a4c9e2f9e2d4e5e346973John McCall CStyleCastExpr(QualType exprTy, CastKind kind, Expr *op, 2195f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall unsigned PathSize, TypeSourceInfo *writtenTy, 219641b2dcd465f1e438502c420effc9d0c747f9db8fAnders Carlsson SourceLocation l, SourceLocation r) 2197f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall : ExplicitCastExpr(CStyleCastExprClass, exprTy, kind, op, PathSize, 219841b2dcd465f1e438502c420effc9d0c747f9db8fAnders Carlsson writtenTy), LPLoc(l), RPLoc(r) {} 219949b4526992a8c8a6a290aa3efa9828154a24af8dSteve Naroff 2200db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor /// \brief Construct an empty C-style explicit cast. 2201f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall explicit CStyleCastExpr(EmptyShell Shell, unsigned PathSize) 2202f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall : ExplicitCastExpr(CStyleCastExprClass, Shell, PathSize) { } 2203f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall 2204f871d0cc377a1367b519a6cce26be74607566ebaJohn McCallpublic: 2205f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall static CStyleCastExpr *Create(ASTContext &Context, QualType T, CastKind K, 2206f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall Expr *Op, const CXXCastPath *BasePath, 2207f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall TypeSourceInfo *WrittenTy, SourceLocation L, 2208f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall SourceLocation R); 2209f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall 2210f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall static CStyleCastExpr *CreateEmpty(ASTContext &Context, unsigned PathSize); 2211db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor 2212b2f9e516327310d95840d442416084508f80c183Steve Naroff SourceLocation getLParenLoc() const { return LPLoc; } 2213db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor void setLParenLoc(SourceLocation L) { LPLoc = L; } 2214db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor 2215b2f9e516327310d95840d442416084508f80c183Steve Naroff SourceLocation getRParenLoc() const { return RPLoc; } 2216db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor void setRParenLoc(SourceLocation L) { RPLoc = L; } 2217db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor 22185f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer virtual SourceRange getSourceRange() const { 2219b2f9e516327310d95840d442416084508f80c183Steve Naroff return SourceRange(LPLoc, getSubExpr()->getSourceRange().getEnd()); 22205f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 22211eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 22221eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == CStyleCastExprClass; 22235f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 22246eec8e883de118b431e3ead5b1e604a6ac68ff6bDouglas Gregor static bool classof(const CStyleCastExpr *) { return true; } 22255f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 22265f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 22273fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// \brief A builtin binary operation expression such as "x + y" or "x <= y". 22283fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// 22293fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// This expression node kind describes a builtin binary operation, 22303fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// such as "x + y" for integer values "x" and "y". The operands will 22313fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// already have been converted to appropriate types (e.g., by 22323fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// performing promotions or conversions). 22333fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// 22343fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// In C++, where operators may be overloaded, a different kind of 22353fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// expression node (CXXOperatorCallExpr) is used to express the 22363fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// invocation of an overloaded operator with operator syntax. Within 22373fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// a C++ template, whether BinaryOperator or CXXOperatorCallExpr is 22383fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// used to store an expression "x + y" depends on the subexpressions 22393fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// for x and y. If neither x or y is type-dependent, and the "+" 22403fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// operator resolves to a built-in operation, BinaryOperator will be 22413fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// used to express the computation (x and y may still be 22423fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// value-dependent). If either x or y is type-dependent, or if the 22433fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// "+" resolves to an overloaded operator, CXXOperatorCallExpr will 22443fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// be used to express the computation. 22455f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass BinaryOperator : public Expr { 22465f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 22475baba9d98364a3525d6afa15a04cdad82fd6dd30John McCall typedef BinaryOperatorKind Opcode; 22485baba9d98364a3525d6afa15a04cdad82fd6dd30John McCall 224917d1b2ac9f8371a0a2e79d4f8e0008658164f080Chris Lattnerprivate: 22500799c53fc2bb7acf937c8a8e165033dba1a5aba3John McCall unsigned Opc : 6; 22510799c53fc2bb7acf937c8a8e165033dba1a5aba3John McCall SourceLocation OpLoc; 22520799c53fc2bb7acf937c8a8e165033dba1a5aba3John McCall 225317d1b2ac9f8371a0a2e79d4f8e0008658164f080Chris Lattner enum { LHS, RHS, END_EXPR }; 22545549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Stmt* SubExprs[END_EXPR]; 22551eb4433ac451dc16f4133a88af2d002ac26c58efMike Stumppublic: 22561eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 225717d1b2ac9f8371a0a2e79d4f8e0008658164f080Chris Lattner BinaryOperator(Expr *lhs, Expr *rhs, Opcode opc, QualType ResTy, 225817d1b2ac9f8371a0a2e79d4f8e0008658164f080Chris Lattner SourceLocation opLoc) 2259898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor : Expr(BinaryOperatorClass, ResTy, 2260898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor lhs->isTypeDependent() || rhs->isTypeDependent(), 22611eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump lhs->isValueDependent() || rhs->isValueDependent()), 2262898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor Opc(opc), OpLoc(opLoc) { 22631237c673c07f9d827129ba02720108816abde562Ted Kremenek SubExprs[LHS] = lhs; 22641237c673c07f9d827129ba02720108816abde562Ted Kremenek SubExprs[RHS] = rhs; 22651eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump assert(!isCompoundAssignmentOp() && 22665f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer "Use ArithAssignBinaryOperator for compound assignments"); 22675f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 22685f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 2269db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor /// \brief Construct an empty binary operator. 22701eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump explicit BinaryOperator(EmptyShell Empty) 22712de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall : Expr(BinaryOperatorClass, Empty), Opc(BO_Comma) { } 2272db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor 227317d1b2ac9f8371a0a2e79d4f8e0008658164f080Chris Lattner SourceLocation getOperatorLoc() const { return OpLoc; } 2274db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor void setOperatorLoc(SourceLocation L) { OpLoc = L; } 2275db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor 22760799c53fc2bb7acf937c8a8e165033dba1a5aba3John McCall Opcode getOpcode() const { return static_cast<Opcode>(Opc); } 2277db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor void setOpcode(Opcode O) { Opc = O; } 2278db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor 22795549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getLHS() const { return cast<Expr>(SubExprs[LHS]); } 2280db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor void setLHS(Expr *E) { SubExprs[LHS] = E; } 22815549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getRHS() const { return cast<Expr>(SubExprs[RHS]); } 2282db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor void setRHS(Expr *E) { SubExprs[RHS] = E; } 2283db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor 22845f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer virtual SourceRange getSourceRange() const { 22855f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return SourceRange(getLHS()->getLocStart(), getRHS()->getLocEnd()); 22865f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 22871eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 22885f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// getOpcodeStr - Turn an Opcode enum value into the punctuation char it 22895f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// corresponds to, e.g. "<<=". 22905f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static const char *getOpcodeStr(Opcode Op); 22915f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 22920799c53fc2bb7acf937c8a8e165033dba1a5aba3John McCall const char *getOpcodeStr() const { return getOpcodeStr(getOpcode()); } 2293a84c02d0f4d63975a1c52b9bb8308d88e9d79352Ted Kremenek 2294063daf6e196c51f162e0485478355d8e280eef5cDouglas Gregor /// \brief Retrieve the binary opcode that corresponds to the given 2295063daf6e196c51f162e0485478355d8e280eef5cDouglas Gregor /// overloaded operator. 2296063daf6e196c51f162e0485478355d8e280eef5cDouglas Gregor static Opcode getOverloadedOpcode(OverloadedOperatorKind OO); 2297063daf6e196c51f162e0485478355d8e280eef5cDouglas Gregor 2298063daf6e196c51f162e0485478355d8e280eef5cDouglas Gregor /// \brief Retrieve the overloaded operator kind that corresponds to 2299063daf6e196c51f162e0485478355d8e280eef5cDouglas Gregor /// the given binary opcode. 2300063daf6e196c51f162e0485478355d8e280eef5cDouglas Gregor static OverloadedOperatorKind getOverloadedOperator(Opcode Opc); 2301063daf6e196c51f162e0485478355d8e280eef5cDouglas Gregor 23025f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// predicates to categorize the respective opcodes. 2303200121569dc6cff10a1fb6ed7500098770b9dd25Sebastian Redl bool isPtrMemOp() const { return Opc == BO_PtrMemD || Opc == BO_PtrMemI; } 23042de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall bool isMultiplicativeOp() const { return Opc >= BO_Mul && Opc <= BO_Rem; } 23052de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall static bool isAdditiveOp(Opcode Opc) { return Opc == BO_Add || Opc==BO_Sub; } 23060799c53fc2bb7acf937c8a8e165033dba1a5aba3John McCall bool isAdditiveOp() const { return isAdditiveOp(getOpcode()); } 23072de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall static bool isShiftOp(Opcode Opc) { return Opc == BO_Shl || Opc == BO_Shr; } 23080799c53fc2bb7acf937c8a8e165033dba1a5aba3John McCall bool isShiftOp() const { return isShiftOp(getOpcode()); } 2309aee3c9375f97a49edef2a36f15df6abd9748e2a1Sebastian Redl 23102de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall static bool isBitwiseOp(Opcode Opc) { return Opc >= BO_And && Opc <= BO_Or; } 23110799c53fc2bb7acf937c8a8e165033dba1a5aba3John McCall bool isBitwiseOp() const { return isBitwiseOp(getOpcode()); } 2312f2da7a06f6b98c3886d9b871ab839f5085b1c238Ted Kremenek 23132de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall static bool isRelationalOp(Opcode Opc) { return Opc >= BO_LT && Opc<=BO_GE; } 23140799c53fc2bb7acf937c8a8e165033dba1a5aba3John McCall bool isRelationalOp() const { return isRelationalOp(getOpcode()); } 2315f2da7a06f6b98c3886d9b871ab839f5085b1c238Ted Kremenek 23162de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall static bool isEqualityOp(Opcode Opc) { return Opc == BO_EQ || Opc == BO_NE; } 23170799c53fc2bb7acf937c8a8e165033dba1a5aba3John McCall bool isEqualityOp() const { return isEqualityOp(getOpcode()); } 23181eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 23192de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall static bool isComparisonOp(Opcode Opc) { return Opc >= BO_LT && Opc<=BO_NE; } 23200799c53fc2bb7acf937c8a8e165033dba1a5aba3John McCall bool isComparisonOp() const { return isComparisonOp(getOpcode()); } 2321aee3c9375f97a49edef2a36f15df6abd9748e2a1Sebastian Redl 23222de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall static bool isLogicalOp(Opcode Opc) { return Opc == BO_LAnd || Opc==BO_LOr; } 23230799c53fc2bb7acf937c8a8e165033dba1a5aba3John McCall bool isLogicalOp() const { return isLogicalOp(getOpcode()); } 2324f2da7a06f6b98c3886d9b871ab839f5085b1c238Ted Kremenek 23252de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall bool isAssignmentOp() const { return Opc >= BO_Assign && Opc <= BO_OrAssign; } 23262de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall bool isCompoundAssignmentOp() const { 23272de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall return Opc > BO_Assign && Opc <= BO_OrAssign; 23282de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall } 23292de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall bool isShiftAssignOp() const { 23302de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall return Opc == BO_ShlAssign || Opc == BO_ShrAssign; 23312de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall } 23321eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 23331eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *S) { 23344bfe1968410ea8ffe3b4f629addd7c4bcf484765Sean Hunt return S->getStmtClass() >= firstBinaryOperatorConstant && 23354bfe1968410ea8ffe3b4f629addd7c4bcf484765Sean Hunt S->getStmtClass() <= lastBinaryOperatorConstant; 23365f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 23375f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const BinaryOperator *) { return true; } 23381237c673c07f9d827129ba02720108816abde562Ted Kremenek 23391237c673c07f9d827129ba02720108816abde562Ted Kremenek // Iterators 23401237c673c07f9d827129ba02720108816abde562Ted Kremenek virtual child_iterator child_begin(); 23411237c673c07f9d827129ba02720108816abde562Ted Kremenek virtual child_iterator child_end(); 23421237c673c07f9d827129ba02720108816abde562Ted Kremenek 23435f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerprotected: 234417d1b2ac9f8371a0a2e79d4f8e0008658164f080Chris Lattner BinaryOperator(Expr *lhs, Expr *rhs, Opcode opc, QualType ResTy, 23452333f7727f97018d6742e1e0938133bcfad967abEli Friedman SourceLocation opLoc, bool dead) 23462333f7727f97018d6742e1e0938133bcfad967abEli Friedman : Expr(CompoundAssignOperatorClass, ResTy, 23472333f7727f97018d6742e1e0938133bcfad967abEli Friedman lhs->isTypeDependent() || rhs->isTypeDependent(), 23482333f7727f97018d6742e1e0938133bcfad967abEli Friedman lhs->isValueDependent() || rhs->isValueDependent()), 23492333f7727f97018d6742e1e0938133bcfad967abEli Friedman Opc(opc), OpLoc(opLoc) { 23501237c673c07f9d827129ba02720108816abde562Ted Kremenek SubExprs[LHS] = lhs; 23511237c673c07f9d827129ba02720108816abde562Ted Kremenek SubExprs[RHS] = rhs; 23525f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 2353ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor 23541eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump BinaryOperator(StmtClass SC, EmptyShell Empty) 23552de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall : Expr(SC, Empty), Opc(BO_MulAssign) { } 23565f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 23575f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 23585f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// CompoundAssignOperator - For compound assignments (e.g. +=), we keep 23595f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// track of the type the operation is performed in. Due to the semantics of 23605f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// these operators, the operands are promoted, the aritmetic performed, an 23615f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// implicit conversion back to the result type done, then the assignment takes 23625f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// place. This captures the intermediate type which the computation is done 23635f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// in. 23645f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass CompoundAssignOperator : public BinaryOperator { 2365ab3a852ae713189444dcbf75e70accf1e8c2b7f2Eli Friedman QualType ComputationLHSType; 2366ab3a852ae713189444dcbf75e70accf1e8c2b7f2Eli Friedman QualType ComputationResultType; 23675f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 23685f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer CompoundAssignOperator(Expr *lhs, Expr *rhs, Opcode opc, 2369ab3a852ae713189444dcbf75e70accf1e8c2b7f2Eli Friedman QualType ResType, QualType CompLHSType, 2370ab3a852ae713189444dcbf75e70accf1e8c2b7f2Eli Friedman QualType CompResultType, 237117d1b2ac9f8371a0a2e79d4f8e0008658164f080Chris Lattner SourceLocation OpLoc) 237217d1b2ac9f8371a0a2e79d4f8e0008658164f080Chris Lattner : BinaryOperator(lhs, rhs, opc, ResType, OpLoc, true), 2373ab3a852ae713189444dcbf75e70accf1e8c2b7f2Eli Friedman ComputationLHSType(CompLHSType), 2374ab3a852ae713189444dcbf75e70accf1e8c2b7f2Eli Friedman ComputationResultType(CompResultType) { 23751eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump assert(isCompoundAssignmentOp() && 23765f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer "Only should be used for compound assignments"); 23775f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 23785f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 2379ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor /// \brief Build an empty compound assignment operator expression. 2380ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor explicit CompoundAssignOperator(EmptyShell Empty) 2381ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor : BinaryOperator(CompoundAssignOperatorClass, Empty) { } 2382ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor 2383ab3a852ae713189444dcbf75e70accf1e8c2b7f2Eli Friedman // The two computation types are the type the LHS is converted 2384ab3a852ae713189444dcbf75e70accf1e8c2b7f2Eli Friedman // to for the computation and the type of the result; the two are 2385ab3a852ae713189444dcbf75e70accf1e8c2b7f2Eli Friedman // distinct in a few cases (specifically, int+=ptr and ptr-=ptr). 2386ab3a852ae713189444dcbf75e70accf1e8c2b7f2Eli Friedman QualType getComputationLHSType() const { return ComputationLHSType; } 2387ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor void setComputationLHSType(QualType T) { ComputationLHSType = T; } 2388ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor 2389ab3a852ae713189444dcbf75e70accf1e8c2b7f2Eli Friedman QualType getComputationResultType() const { return ComputationResultType; } 2390ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor void setComputationResultType(QualType T) { ComputationResultType = T; } 2391ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor 23925f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const CompoundAssignOperator *) { return true; } 23931eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *S) { 23941eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return S->getStmtClass() == CompoundAssignOperatorClass; 23955f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 23965f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 23975f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 23985f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// ConditionalOperator - The ?: operator. Note that LHS may be null when the 23995f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// GNU "missing LHS" extension is in use. 24005f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 24015f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass ConditionalOperator : public Expr { 24021237c673c07f9d827129ba02720108816abde562Ted Kremenek enum { COND, LHS, RHS, END_EXPR }; 24035549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Stmt* SubExprs[END_EXPR]; // Left/Middle/Right hand sides. 2404f9b949fecf339a2c9bd97dd11a272c4878f85ce4Fariborz Jahanian Stmt* Save; 240547e1f7c68bf375cac470fdb2b599ddbb395aeb52Douglas Gregor SourceLocation QuestionLoc, ColonLoc; 24065f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 240747e1f7c68bf375cac470fdb2b599ddbb395aeb52Douglas Gregor ConditionalOperator(Expr *cond, SourceLocation QLoc, Expr *lhs, 2408f9b949fecf339a2c9bd97dd11a272c4878f85ce4Fariborz Jahanian SourceLocation CLoc, Expr *rhs, Expr *save, QualType t) 2409898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor : Expr(ConditionalOperatorClass, t, 2410898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // FIXME: the type of the conditional operator doesn't 2411898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // depend on the type of the conditional, but the standard 2412898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // seems to imply that it could. File a bug! 2413898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor ((lhs && lhs->isTypeDependent()) || (rhs && rhs->isTypeDependent())), 24141eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump (cond->isValueDependent() || 2415898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor (lhs && lhs->isValueDependent()) || 241647e1f7c68bf375cac470fdb2b599ddbb395aeb52Douglas Gregor (rhs && rhs->isValueDependent()))), 241747e1f7c68bf375cac470fdb2b599ddbb395aeb52Douglas Gregor QuestionLoc(QLoc), 241847e1f7c68bf375cac470fdb2b599ddbb395aeb52Douglas Gregor ColonLoc(CLoc) { 24191237c673c07f9d827129ba02720108816abde562Ted Kremenek SubExprs[COND] = cond; 24201237c673c07f9d827129ba02720108816abde562Ted Kremenek SubExprs[LHS] = lhs; 24211237c673c07f9d827129ba02720108816abde562Ted Kremenek SubExprs[RHS] = rhs; 2422f9b949fecf339a2c9bd97dd11a272c4878f85ce4Fariborz Jahanian Save = save; 24231237c673c07f9d827129ba02720108816abde562Ted Kremenek } 24245f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 2425ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor /// \brief Build an empty conditional operator. 2426ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor explicit ConditionalOperator(EmptyShell Empty) 2427ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor : Expr(ConditionalOperatorClass, Empty) { } 2428ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor 2429395a2abf0028968d85958610e393e067885dc14fTed Kremenek // getCond - Return the expression representing the condition for 2430395a2abf0028968d85958610e393e067885dc14fTed Kremenek // the ?: operator. 24315549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getCond() const { return cast<Expr>(SubExprs[COND]); } 2432ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor void setCond(Expr *E) { SubExprs[COND] = E; } 2433395a2abf0028968d85958610e393e067885dc14fTed Kremenek 2434395a2abf0028968d85958610e393e067885dc14fTed Kremenek // getTrueExpr - Return the subexpression representing the value of the ?: 2435f9b949fecf339a2c9bd97dd11a272c4878f85ce4Fariborz Jahanian // expression if the condition evaluates to true. 2436395a2abf0028968d85958610e393e067885dc14fTed Kremenek Expr *getTrueExpr() const { 2437f9b949fecf339a2c9bd97dd11a272c4878f85ce4Fariborz Jahanian return cast<Expr>(!Save ? SubExprs[LHS] : SubExprs[COND]); 2438395a2abf0028968d85958610e393e067885dc14fTed Kremenek } 24391eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2440ae2777cfe7d21f73e5a4155082fe20197cec62bdNick Lewycky // getFalseExpr - Return the subexpression representing the value of the ?: 2441395a2abf0028968d85958610e393e067885dc14fTed Kremenek // expression if the condition evaluates to false. This is the same as getRHS. 24425549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getFalseExpr() const { return cast<Expr>(SubExprs[RHS]); } 2443f9b949fecf339a2c9bd97dd11a272c4878f85ce4Fariborz Jahanian 2444f9b949fecf339a2c9bd97dd11a272c4878f85ce4Fariborz Jahanian // getSaveExpr - In most cases this value will be null. Except a GCC extension 2445f9b949fecf339a2c9bd97dd11a272c4878f85ce4Fariborz Jahanian // allows the left subexpression to be omitted, and instead of that condition 2446f9b949fecf339a2c9bd97dd11a272c4878f85ce4Fariborz Jahanian // be returned. e.g: x ?: y is shorthand for x ? x : y, except that the 2447f9b949fecf339a2c9bd97dd11a272c4878f85ce4Fariborz Jahanian // expression "x" is only evaluated once. Under this senario, this function 2448f9b949fecf339a2c9bd97dd11a272c4878f85ce4Fariborz Jahanian // returns the original, non-converted condition expression for the ?:operator 2449f9b949fecf339a2c9bd97dd11a272c4878f85ce4Fariborz Jahanian Expr *getSaveExpr() const { return Save? cast<Expr>(Save) : (Expr*)0; } 2450f9b949fecf339a2c9bd97dd11a272c4878f85ce4Fariborz Jahanian 2451f9b949fecf339a2c9bd97dd11a272c4878f85ce4Fariborz Jahanian Expr *getLHS() const { return Save ? 0 : cast<Expr>(SubExprs[LHS]); } 2452ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor void setLHS(Expr *E) { SubExprs[LHS] = E; } 2453ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor 24545549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getRHS() const { return cast<Expr>(SubExprs[RHS]); } 2455ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor void setRHS(Expr *E) { SubExprs[RHS] = E; } 24565f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 2457f9b949fecf339a2c9bd97dd11a272c4878f85ce4Fariborz Jahanian Expr *getSAVE() const { return Save? cast<Expr>(Save) : (Expr*)0; } 2458f9b949fecf339a2c9bd97dd11a272c4878f85ce4Fariborz Jahanian void setSAVE(Expr *E) { Save = E; } 2459f9b949fecf339a2c9bd97dd11a272c4878f85ce4Fariborz Jahanian 246047e1f7c68bf375cac470fdb2b599ddbb395aeb52Douglas Gregor SourceLocation getQuestionLoc() const { return QuestionLoc; } 246147e1f7c68bf375cac470fdb2b599ddbb395aeb52Douglas Gregor void setQuestionLoc(SourceLocation L) { QuestionLoc = L; } 246247e1f7c68bf375cac470fdb2b599ddbb395aeb52Douglas Gregor 246347e1f7c68bf375cac470fdb2b599ddbb395aeb52Douglas Gregor SourceLocation getColonLoc() const { return ColonLoc; } 246447e1f7c68bf375cac470fdb2b599ddbb395aeb52Douglas Gregor void setColonLoc(SourceLocation L) { ColonLoc = L; } 246547e1f7c68bf375cac470fdb2b599ddbb395aeb52Douglas Gregor 24665f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer virtual SourceRange getSourceRange() const { 24675f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return SourceRange(getCond()->getLocStart(), getRHS()->getLocEnd()); 24685f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 24691eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 24701eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == ConditionalOperatorClass; 24715f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 24725f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const ConditionalOperator *) { return true; } 24731eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 24741237c673c07f9d827129ba02720108816abde562Ted Kremenek // Iterators 24751237c673c07f9d827129ba02720108816abde562Ted Kremenek virtual child_iterator child_begin(); 24761237c673c07f9d827129ba02720108816abde562Ted Kremenek virtual child_iterator child_end(); 24775f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 24785f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 24796481a57fefbf1a313ff439028470fe4c27a3b7a3Chris Lattner/// AddrLabelExpr - The GNU address of label extension, representing &&label. 24806481a57fefbf1a313ff439028470fe4c27a3b7a3Chris Lattnerclass AddrLabelExpr : public Expr { 24815f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation AmpAmpLoc, LabelLoc; 24825f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer LabelStmt *Label; 24835f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 24846481a57fefbf1a313ff439028470fe4c27a3b7a3Chris Lattner AddrLabelExpr(SourceLocation AALoc, SourceLocation LLoc, LabelStmt *L, 24856481a57fefbf1a313ff439028470fe4c27a3b7a3Chris Lattner QualType t) 24862333f7727f97018d6742e1e0938133bcfad967abEli Friedman : Expr(AddrLabelExprClass, t, false, false), 24872333f7727f97018d6742e1e0938133bcfad967abEli Friedman AmpAmpLoc(AALoc), LabelLoc(LLoc), Label(L) {} 24881eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 24897d5c2f241c74e5f8d9ec492e8f9f268e5e9ae41fDouglas Gregor /// \brief Build an empty address of a label expression. 24901eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump explicit AddrLabelExpr(EmptyShell Empty) 24917d5c2f241c74e5f8d9ec492e8f9f268e5e9ae41fDouglas Gregor : Expr(AddrLabelExprClass, Empty) { } 24927d5c2f241c74e5f8d9ec492e8f9f268e5e9ae41fDouglas Gregor 24937d5c2f241c74e5f8d9ec492e8f9f268e5e9ae41fDouglas Gregor SourceLocation getAmpAmpLoc() const { return AmpAmpLoc; } 24947d5c2f241c74e5f8d9ec492e8f9f268e5e9ae41fDouglas Gregor void setAmpAmpLoc(SourceLocation L) { AmpAmpLoc = L; } 24957d5c2f241c74e5f8d9ec492e8f9f268e5e9ae41fDouglas Gregor SourceLocation getLabelLoc() const { return LabelLoc; } 24967d5c2f241c74e5f8d9ec492e8f9f268e5e9ae41fDouglas Gregor void setLabelLoc(SourceLocation L) { LabelLoc = L; } 24977d5c2f241c74e5f8d9ec492e8f9f268e5e9ae41fDouglas Gregor 24985f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer virtual SourceRange getSourceRange() const { 24995f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return SourceRange(AmpAmpLoc, LabelLoc); 25005f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 25011eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 25025f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer LabelStmt *getLabel() const { return Label; } 25037d5c2f241c74e5f8d9ec492e8f9f268e5e9ae41fDouglas Gregor void setLabel(LabelStmt *S) { Label = S; } 25047d5c2f241c74e5f8d9ec492e8f9f268e5e9ae41fDouglas Gregor 25055f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const Stmt *T) { 25061eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == AddrLabelExprClass; 25075f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 25086481a57fefbf1a313ff439028470fe4c27a3b7a3Chris Lattner static bool classof(const AddrLabelExpr *) { return true; } 25091eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 25101237c673c07f9d827129ba02720108816abde562Ted Kremenek // Iterators 25111237c673c07f9d827129ba02720108816abde562Ted Kremenek virtual child_iterator child_begin(); 25121237c673c07f9d827129ba02720108816abde562Ted Kremenek virtual child_iterator child_end(); 25135f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 2514ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner 2515ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner/// StmtExpr - This is the GNU Statement Expression extension: ({int X=4; X;}). 2516ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner/// The StmtExpr contains a single CompoundStmt node, which it evaluates and 2517ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner/// takes the value of the last subexpression. 2518ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattnerclass StmtExpr : public Expr { 25195549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Stmt *SubStmt; 2520ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner SourceLocation LParenLoc, RParenLoc; 2521ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattnerpublic: 25222333f7727f97018d6742e1e0938133bcfad967abEli Friedman // FIXME: Does type-dependence need to be computed differently? 2523d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroff StmtExpr(CompoundStmt *substmt, QualType T, 2524d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroff SourceLocation lp, SourceLocation rp) : 25252333f7727f97018d6742e1e0938133bcfad967abEli Friedman Expr(StmtExprClass, T, T->isDependentType(), false), 25262333f7727f97018d6742e1e0938133bcfad967abEli Friedman SubStmt(substmt), LParenLoc(lp), RParenLoc(rp) { } 25271eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 25286a2dd55b0b3ae376d449a4b07bbb6b2d30b26330Douglas Gregor /// \brief Build an empty statement expression. 25296a2dd55b0b3ae376d449a4b07bbb6b2d30b26330Douglas Gregor explicit StmtExpr(EmptyShell Empty) : Expr(StmtExprClass, Empty) { } 25306a2dd55b0b3ae376d449a4b07bbb6b2d30b26330Douglas Gregor 25315549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek CompoundStmt *getSubStmt() { return cast<CompoundStmt>(SubStmt); } 25325549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek const CompoundStmt *getSubStmt() const { return cast<CompoundStmt>(SubStmt); } 25336a2dd55b0b3ae376d449a4b07bbb6b2d30b26330Douglas Gregor void setSubStmt(CompoundStmt *S) { SubStmt = S; } 25346a2dd55b0b3ae376d449a4b07bbb6b2d30b26330Douglas Gregor 2535ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner virtual SourceRange getSourceRange() const { 2536ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner return SourceRange(LParenLoc, RParenLoc); 2537ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner } 25381eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2539026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner SourceLocation getLParenLoc() const { return LParenLoc; } 25406a2dd55b0b3ae376d449a4b07bbb6b2d30b26330Douglas Gregor void setLParenLoc(SourceLocation L) { LParenLoc = L; } 2541026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner SourceLocation getRParenLoc() const { return RParenLoc; } 25426a2dd55b0b3ae376d449a4b07bbb6b2d30b26330Douglas Gregor void setRParenLoc(SourceLocation L) { RParenLoc = L; } 25431eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2544ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner static bool classof(const Stmt *T) { 25451eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == StmtExprClass; 2546ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner } 2547ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner static bool classof(const StmtExpr *) { return true; } 25481eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 25491237c673c07f9d827129ba02720108816abde562Ted Kremenek // Iterators 25501237c673c07f9d827129ba02720108816abde562Ted Kremenek virtual child_iterator child_begin(); 25511237c673c07f9d827129ba02720108816abde562Ted Kremenek virtual child_iterator child_end(); 2552ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner}; 2553ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner 2554dc241b42c7588f99027b035a09b71557a6db219eDouglas Gregor/// TypesCompatibleExpr - GNU builtin-in function __builtin_types_compatible_p. 2555d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroff/// This AST node represents a function that returns 1 if two *types* (not 2556d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroff/// expressions) are compatible. The result of this built-in function can be 2557d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroff/// used in integer constant expressions. 2558d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroffclass TypesCompatibleExpr : public Expr { 25593fcb73dae91be42b071cf0dde9222b7ec362146dAbramo Bagnara TypeSourceInfo *TInfo1; 25603fcb73dae91be42b071cf0dde9222b7ec362146dAbramo Bagnara TypeSourceInfo *TInfo2; 2561363bcff47df2fda3cfcfcd994b7888157df58c43Steve Naroff SourceLocation BuiltinLoc, RParenLoc; 2562d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroffpublic: 25631eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump TypesCompatibleExpr(QualType ReturnType, SourceLocation BLoc, 25643fcb73dae91be42b071cf0dde9222b7ec362146dAbramo Bagnara TypeSourceInfo *tinfo1, TypeSourceInfo *tinfo2, 25653fcb73dae91be42b071cf0dde9222b7ec362146dAbramo Bagnara SourceLocation RP) : 25662333f7727f97018d6742e1e0938133bcfad967abEli Friedman Expr(TypesCompatibleExprClass, ReturnType, false, false), 25673fcb73dae91be42b071cf0dde9222b7ec362146dAbramo Bagnara TInfo1(tinfo1), TInfo2(tinfo2), BuiltinLoc(BLoc), RParenLoc(RP) {} 2568d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroff 256944cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor /// \brief Build an empty __builtin_type_compatible_p expression. 257044cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor explicit TypesCompatibleExpr(EmptyShell Empty) 257144cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor : Expr(TypesCompatibleExprClass, Empty) { } 257244cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor 25733fcb73dae91be42b071cf0dde9222b7ec362146dAbramo Bagnara TypeSourceInfo *getArgTInfo1() const { return TInfo1; } 25743fcb73dae91be42b071cf0dde9222b7ec362146dAbramo Bagnara void setArgTInfo1(TypeSourceInfo *TInfo) { TInfo1 = TInfo; } 25753fcb73dae91be42b071cf0dde9222b7ec362146dAbramo Bagnara TypeSourceInfo *getArgTInfo2() const { return TInfo2; } 25763fcb73dae91be42b071cf0dde9222b7ec362146dAbramo Bagnara void setArgTInfo2(TypeSourceInfo *TInfo) { TInfo2 = TInfo; } 25773fcb73dae91be42b071cf0dde9222b7ec362146dAbramo Bagnara 25783fcb73dae91be42b071cf0dde9222b7ec362146dAbramo Bagnara QualType getArgType1() const { return TInfo1->getType(); } 25793fcb73dae91be42b071cf0dde9222b7ec362146dAbramo Bagnara QualType getArgType2() const { return TInfo2->getType(); } 25801eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 258144cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor SourceLocation getBuiltinLoc() const { return BuiltinLoc; } 258244cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor void setBuiltinLoc(SourceLocation L) { BuiltinLoc = L; } 25831eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 258444cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor SourceLocation getRParenLoc() const { return RParenLoc; } 258544cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor void setRParenLoc(SourceLocation L) { RParenLoc = L; } 25861eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2587d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroff virtual SourceRange getSourceRange() const { 2588363bcff47df2fda3cfcfcd994b7888157df58c43Steve Naroff return SourceRange(BuiltinLoc, RParenLoc); 2589d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroff } 2590d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroff static bool classof(const Stmt *T) { 25911eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == TypesCompatibleExprClass; 2592d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroff } 2593d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroff static bool classof(const TypesCompatibleExpr *) { return true; } 25941eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 25951237c673c07f9d827129ba02720108816abde562Ted Kremenek // Iterators 25961237c673c07f9d827129ba02720108816abde562Ted Kremenek virtual child_iterator child_begin(); 25971237c673c07f9d827129ba02720108816abde562Ted Kremenek virtual child_iterator child_end(); 2598d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroff}; 2599d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroff 2600d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman/// ShuffleVectorExpr - clang-specific builtin-in function 2601d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman/// __builtin_shufflevector. 2602d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman/// This AST node represents a operator that does a constant 2603d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman/// shuffle, similar to LLVM's shufflevector instruction. It takes 2604d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman/// two vectors and a variable number of constant indices, 2605d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman/// and returns the appropriately shuffled vector. 2606d38617c8a50f9729c254ab76cd359af797c6739bEli Friedmanclass ShuffleVectorExpr : public Expr { 2607d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman SourceLocation BuiltinLoc, RParenLoc; 2608d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman 2609d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman // SubExprs - the list of values passed to the __builtin_shufflevector 2610d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman // function. The first two are vectors, and the rest are constant 2611d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman // indices. The number of values in this list is always 2612d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman // 2+the number of indices in the vector type. 26135549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Stmt **SubExprs; 2614d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman unsigned NumExprs; 2615d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman 2616d38617c8a50f9729c254ab76cd359af797c6739bEli Friedmanpublic: 26172333f7727f97018d6742e1e0938133bcfad967abEli Friedman // FIXME: Can a shufflevector be value-dependent? Does type-dependence need 26182333f7727f97018d6742e1e0938133bcfad967abEli Friedman // to be computed differently? 2619a88dc3079bedf70a5cfc39791727e43a10383006Nate Begeman ShuffleVectorExpr(ASTContext &C, Expr **args, unsigned nexpr, 26201eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump QualType Type, SourceLocation BLoc, 26211eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump SourceLocation RP) : 26222333f7727f97018d6742e1e0938133bcfad967abEli Friedman Expr(ShuffleVectorExprClass, Type, Type->isDependentType(), false), 26232333f7727f97018d6742e1e0938133bcfad967abEli Friedman BuiltinLoc(BLoc), RParenLoc(RP), NumExprs(nexpr) { 26241eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2625a88dc3079bedf70a5cfc39791727e43a10383006Nate Begeman SubExprs = new (C) Stmt*[nexpr]; 2626d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman for (unsigned i = 0; i < nexpr; i++) 2627d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman SubExprs[i] = args[i]; 2628d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman } 262994cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor 263094cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor /// \brief Build an empty vector-shuffle expression. 26311eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump explicit ShuffleVectorExpr(EmptyShell Empty) 263294cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor : Expr(ShuffleVectorExprClass, Empty), SubExprs(0) { } 263394cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor 263494cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor SourceLocation getBuiltinLoc() const { return BuiltinLoc; } 263594cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor void setBuiltinLoc(SourceLocation L) { BuiltinLoc = L; } 26361eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 263794cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor SourceLocation getRParenLoc() const { return RParenLoc; } 263894cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor void setRParenLoc(SourceLocation L) { RParenLoc = L; } 263994cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor 2640d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman virtual SourceRange getSourceRange() const { 2641d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman return SourceRange(BuiltinLoc, RParenLoc); 2642d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman } 2643d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman static bool classof(const Stmt *T) { 26441eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == ShuffleVectorExprClass; 2645d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman } 2646d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman static bool classof(const ShuffleVectorExpr *) { return true; } 26471eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2648d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman /// getNumSubExprs - Return the size of the SubExprs array. This includes the 2649d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman /// constant expression, the actual arguments passed in, and the function 2650d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman /// pointers. 2651d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman unsigned getNumSubExprs() const { return NumExprs; } 26521eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2653d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman /// getExpr - Return the Expr at the specified index. 2654d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman Expr *getExpr(unsigned Index) { 2655d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman assert((Index < NumExprs) && "Arg access out of range!"); 26565549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek return cast<Expr>(SubExprs[Index]); 2657d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman } 2658d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman const Expr *getExpr(unsigned Index) const { 2659d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman assert((Index < NumExprs) && "Arg access out of range!"); 26605549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek return cast<Expr>(SubExprs[Index]); 2661d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman } 26621eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2663888376a2bbcfc2f047902249f8455918e2489ae1Nate Begeman void setExprs(ASTContext &C, Expr ** Exprs, unsigned NumExprs); 266494cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor 2665dde8c94873976632e3ada4d8d067e1e244184d51Eli Friedman unsigned getShuffleMaskIdx(ASTContext &Ctx, unsigned N) { 2666dde8c94873976632e3ada4d8d067e1e244184d51Eli Friedman assert((N < NumExprs - 2) && "Shuffle idx out of range!"); 26679a901bb63990574ff0bcc12ff851d7a71cff8ddbEli Friedman return getExpr(N+2)->EvaluateAsInt(Ctx).getZExtValue(); 2668d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman } 26691eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2670d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman // Iterators 2671d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman virtual child_iterator child_begin(); 2672d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman virtual child_iterator child_end(); 2673d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman}; 2674d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman 2675d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff/// ChooseExpr - GNU builtin-in function __builtin_choose_expr. 26761eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// This AST node is similar to the conditional operator (?:) in C, with 2677d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff/// the following exceptions: 26787976932a1c256d447316ffac58e9821417725e34Eli Friedman/// - the test expression must be a integer constant expression. 26797976932a1c256d447316ffac58e9821417725e34Eli Friedman/// - the expression returned acts like the chosen subexpression in every 26807976932a1c256d447316ffac58e9821417725e34Eli Friedman/// visible way: the type is the same as that of the chosen subexpression, 26817976932a1c256d447316ffac58e9821417725e34Eli Friedman/// and all predicates (whether it's an l-value, whether it's an integer 26827976932a1c256d447316ffac58e9821417725e34Eli Friedman/// constant expression, etc.) return the same result as for the chosen 26837976932a1c256d447316ffac58e9821417725e34Eli Friedman/// sub-expression. 2684d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroffclass ChooseExpr : public Expr { 26851237c673c07f9d827129ba02720108816abde562Ted Kremenek enum { COND, LHS, RHS, END_EXPR }; 26865549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Stmt* SubExprs[END_EXPR]; // Left/Middle/Right hand sides. 2687d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff SourceLocation BuiltinLoc, RParenLoc; 2688d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroffpublic: 2689d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff ChooseExpr(SourceLocation BLoc, Expr *cond, Expr *lhs, Expr *rhs, QualType t, 2690ce94049b69f75b44c18584fe79cd238978b6b0d5Douglas Gregor SourceLocation RP, bool TypeDependent, bool ValueDependent) 2691ce94049b69f75b44c18584fe79cd238978b6b0d5Douglas Gregor : Expr(ChooseExprClass, t, TypeDependent, ValueDependent), 26921237c673c07f9d827129ba02720108816abde562Ted Kremenek BuiltinLoc(BLoc), RParenLoc(RP) { 26931237c673c07f9d827129ba02720108816abde562Ted Kremenek SubExprs[COND] = cond; 26941237c673c07f9d827129ba02720108816abde562Ted Kremenek SubExprs[LHS] = lhs; 26951237c673c07f9d827129ba02720108816abde562Ted Kremenek SubExprs[RHS] = rhs; 26961eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump } 26977976932a1c256d447316ffac58e9821417725e34Eli Friedman 269844cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor /// \brief Build an empty __builtin_choose_expr. 269944cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor explicit ChooseExpr(EmptyShell Empty) : Expr(ChooseExprClass, Empty) { } 270044cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor 27017976932a1c256d447316ffac58e9821417725e34Eli Friedman /// isConditionTrue - Return whether the condition is true (i.e. not 27027976932a1c256d447316ffac58e9821417725e34Eli Friedman /// equal to zero). 270327437caadea35f84d550cd29f024fcf3ea240eecChris Lattner bool isConditionTrue(ASTContext &C) const; 27047976932a1c256d447316ffac58e9821417725e34Eli Friedman 27057976932a1c256d447316ffac58e9821417725e34Eli Friedman /// getChosenSubExpr - Return the subexpression chosen according to the 27067976932a1c256d447316ffac58e9821417725e34Eli Friedman /// condition. 27077976932a1c256d447316ffac58e9821417725e34Eli Friedman Expr *getChosenSubExpr(ASTContext &C) const { 27087976932a1c256d447316ffac58e9821417725e34Eli Friedman return isConditionTrue(C) ? getLHS() : getRHS(); 27097976932a1c256d447316ffac58e9821417725e34Eli Friedman } 27107976932a1c256d447316ffac58e9821417725e34Eli Friedman 27115549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getCond() const { return cast<Expr>(SubExprs[COND]); } 271244cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor void setCond(Expr *E) { SubExprs[COND] = E; } 27135549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getLHS() const { return cast<Expr>(SubExprs[LHS]); } 271444cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor void setLHS(Expr *E) { SubExprs[LHS] = E; } 27155549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getRHS() const { return cast<Expr>(SubExprs[RHS]); } 271644cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor void setRHS(Expr *E) { SubExprs[RHS] = E; } 271744cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor 271844cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor SourceLocation getBuiltinLoc() const { return BuiltinLoc; } 271944cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor void setBuiltinLoc(SourceLocation L) { BuiltinLoc = L; } 27201eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 272144cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor SourceLocation getRParenLoc() const { return RParenLoc; } 272244cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor void setRParenLoc(SourceLocation L) { RParenLoc = L; } 27231237c673c07f9d827129ba02720108816abde562Ted Kremenek 2724d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff virtual SourceRange getSourceRange() const { 2725d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff return SourceRange(BuiltinLoc, RParenLoc); 2726d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff } 2727d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff static bool classof(const Stmt *T) { 27281eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == ChooseExprClass; 2729d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff } 2730d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff static bool classof(const ChooseExpr *) { return true; } 27311eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 27321237c673c07f9d827129ba02720108816abde562Ted Kremenek // Iterators 27331237c673c07f9d827129ba02720108816abde562Ted Kremenek virtual child_iterator child_begin(); 27341237c673c07f9d827129ba02720108816abde562Ted Kremenek virtual child_iterator child_end(); 2735d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff}; 2736d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff 27372d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor/// GNUNullExpr - Implements the GNU __null extension, which is a name 27382d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor/// for a null pointer constant that has integral type (e.g., int or 27392d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor/// long) and is the same size and alignment as a pointer. The __null 27402d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor/// extension is typically only used by system headers, which define 27412d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor/// NULL as __null in C++ rather than using 0 (which is an integer 27422d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor/// that may not match the size of a pointer). 27432d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregorclass GNUNullExpr : public Expr { 27442d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor /// TokenLoc - The location of the __null keyword. 27452d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor SourceLocation TokenLoc; 27462d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor 27472d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregorpublic: 27481eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump GNUNullExpr(QualType Ty, SourceLocation Loc) 27492333f7727f97018d6742e1e0938133bcfad967abEli Friedman : Expr(GNUNullExprClass, Ty, false, false), TokenLoc(Loc) { } 27502d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor 275144cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor /// \brief Build an empty GNU __null expression. 275244cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor explicit GNUNullExpr(EmptyShell Empty) : Expr(GNUNullExprClass, Empty) { } 275344cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor 27542d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor /// getTokenLocation - The location of the __null token. 27552d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor SourceLocation getTokenLocation() const { return TokenLoc; } 275644cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor void setTokenLocation(SourceLocation L) { TokenLoc = L; } 27572d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor 27582d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor virtual SourceRange getSourceRange() const { 27592d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor return SourceRange(TokenLoc); 27602d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor } 27612d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor static bool classof(const Stmt *T) { 27621eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == GNUNullExprClass; 27632d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor } 27642d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor static bool classof(const GNUNullExpr *) { return true; } 27651eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 27662d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor // Iterators 27672d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor virtual child_iterator child_begin(); 27682d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor virtual child_iterator child_end(); 27692d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor}; 27702d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor 277174626d6ef2e194fcc911e071556660ff331eb4a8Zhongxing Xu/// VAArgExpr, used for the builtin function __builtin_va_arg. 27727c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlssonclass VAArgExpr : public Expr { 27735549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Stmt *Val; 27742cad900202561cdda18ea6cc51ddbf3e20e3c23aAbramo Bagnara TypeSourceInfo *TInfo; 27757c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson SourceLocation BuiltinLoc, RParenLoc; 27767c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlssonpublic: 27772cad900202561cdda18ea6cc51ddbf3e20e3c23aAbramo Bagnara VAArgExpr(SourceLocation BLoc, Expr* e, TypeSourceInfo *TInfo, 27782cad900202561cdda18ea6cc51ddbf3e20e3c23aAbramo Bagnara SourceLocation RPLoc, QualType t) 27792333f7727f97018d6742e1e0938133bcfad967abEli Friedman : Expr(VAArgExprClass, t, t->isDependentType(), false), 27802cad900202561cdda18ea6cc51ddbf3e20e3c23aAbramo Bagnara Val(e), TInfo(TInfo), 27817c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson BuiltinLoc(BLoc), 27827c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson RParenLoc(RPLoc) { } 27831eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 278474626d6ef2e194fcc911e071556660ff331eb4a8Zhongxing Xu /// \brief Create an empty __builtin_va_arg expression. 2785d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor explicit VAArgExpr(EmptyShell Empty) : Expr(VAArgExprClass, Empty) { } 2786d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor 27875549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek const Expr *getSubExpr() const { return cast<Expr>(Val); } 27885549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getSubExpr() { return cast<Expr>(Val); } 2789d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor void setSubExpr(Expr *E) { Val = E; } 2790d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor 27912cad900202561cdda18ea6cc51ddbf3e20e3c23aAbramo Bagnara TypeSourceInfo *getWrittenTypeInfo() const { return TInfo; } 27922cad900202561cdda18ea6cc51ddbf3e20e3c23aAbramo Bagnara void setWrittenTypeInfo(TypeSourceInfo *TI) { TInfo = TI; } 27932cad900202561cdda18ea6cc51ddbf3e20e3c23aAbramo Bagnara 2794d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor SourceLocation getBuiltinLoc() const { return BuiltinLoc; } 2795d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor void setBuiltinLoc(SourceLocation L) { BuiltinLoc = L; } 27961eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2797d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor SourceLocation getRParenLoc() const { return RParenLoc; } 2798d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor void setRParenLoc(SourceLocation L) { RParenLoc = L; } 2799d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor 28007c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson virtual SourceRange getSourceRange() const { 28017c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson return SourceRange(BuiltinLoc, RParenLoc); 28021eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump } 28037c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson static bool classof(const Stmt *T) { 28047c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson return T->getStmtClass() == VAArgExprClass; 28057c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson } 28067c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson static bool classof(const VAArgExpr *) { return true; } 28071eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 28087c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson // Iterators 28097c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson virtual child_iterator child_begin(); 28101eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump virtual child_iterator child_end(); 28117c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson}; 28121eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 28134c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// @brief Describes an C or C++ initializer list. 28144c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// 28154c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// InitListExpr describes an initializer list, which can be used to 28164c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// initialize objects of different types, including 28174c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// struct/class/union types, arrays, and vectors. For example: 28184c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// 28194c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// @code 28204c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// struct foo x = { 1, { 2, 3 } }; 28214c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// @endcode 2822196ef51bc4d008ec1c69851fb3b0f8d036065931Chris Lattner/// 28234c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// Prior to semantic analysis, an initializer list will represent the 28244c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// initializer list as written by the user, but will have the 28254c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// placeholder type "void". This initializer list is called the 28264c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// syntactic form of the initializer, and may contain C99 designated 28274c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// initializers (represented as DesignatedInitExprs), initializations 28284c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// of subobject members without explicit braces, and so on. Clients 28294c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// interested in the original syntax of the initializer list should 28304c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// use the syntactic form of the initializer list. 2831196ef51bc4d008ec1c69851fb3b0f8d036065931Chris Lattner/// 28324c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// After semantic analysis, the initializer list will represent the 28334c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// semantic form of the initializer, where the initializations of all 28344c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// subobjects are made explicit with nested InitListExpr nodes and 28354c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// C99 designators have been eliminated by placing the designated 28364c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// initializations into the subobject they initialize. Additionally, 28374c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// any "holes" in the initialization, where no initializer has been 28384c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// specified for a particular subobject, will be replaced with 28393498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor/// implicitly-generated ImplicitValueInitExpr expressions that 28404c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// value-initialize the subobjects. Note, however, that the 28414c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// initializer lists may still have fewer initializers than there are 28424c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// elements to initialize within the object. 2843196ef51bc4d008ec1c69851fb3b0f8d036065931Chris Lattner/// 28444c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// Given the semantic form of the initializer list, one can retrieve 28454c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// the original syntactic form of that initializer list (if it 28464c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// exists) using getSyntacticForm(). Since many initializer lists 28474c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// have the same syntactic and semantic forms, getSyntacticForm() may 28484c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// return NULL, indicating that the current initializer list also 28494c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// serves as its syntactic form. 285066b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlssonclass InitListExpr : public Expr { 2851ba7bc5584b8d46f4e8deb3a9d363256908fa86eaTed Kremenek // FIXME: Eliminate this vector in favor of ASTContext allocation 2852709210feee317b8d6690dd1d15c2b74cfe55e261Ted Kremenek typedef ASTVector<Stmt *> InitExprsTy; 2853709210feee317b8d6690dd1d15c2b74cfe55e261Ted Kremenek InitExprsTy InitExprs; 285466b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson SourceLocation LBraceLoc, RBraceLoc; 28551eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 28564c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// Contains the initializer list that describes the syntactic form 28574c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// written in the source code. 28584c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor InitListExpr *SyntacticForm; 28594c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor 28600bb76897bedb8b747efc6523efb432fc24966118Douglas Gregor /// If this initializer list initializes a union, specifies which 28610bb76897bedb8b747efc6523efb432fc24966118Douglas Gregor /// field within the union will be initialized. 28620bb76897bedb8b747efc6523efb432fc24966118Douglas Gregor FieldDecl *UnionFieldInit; 28630bb76897bedb8b747efc6523efb432fc24966118Douglas Gregor 2864a9c878086036de36482cc21e35a33cabe9699b0aDouglas Gregor /// Whether this initializer list originally had a GNU array-range 2865a9c878086036de36482cc21e35a33cabe9699b0aDouglas Gregor /// designator in it. This is a temporary marker used by CodeGen. 2866a9c878086036de36482cc21e35a33cabe9699b0aDouglas Gregor bool HadArrayRangeDesignator; 2867a9c878086036de36482cc21e35a33cabe9699b0aDouglas Gregor 286866b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlssonpublic: 2869709210feee317b8d6690dd1d15c2b74cfe55e261Ted Kremenek InitListExpr(ASTContext &C, SourceLocation lbraceloc, 2870709210feee317b8d6690dd1d15c2b74cfe55e261Ted Kremenek Expr **initexprs, unsigned numinits, 2871ba7bc5584b8d46f4e8deb3a9d363256908fa86eaTed Kremenek SourceLocation rbraceloc); 2872d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor 2873d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor /// \brief Build an empty initializer list. 2874709210feee317b8d6690dd1d15c2b74cfe55e261Ted Kremenek explicit InitListExpr(ASTContext &C, EmptyShell Empty) 2875709210feee317b8d6690dd1d15c2b74cfe55e261Ted Kremenek : Expr(InitListExprClass, Empty), InitExprs(C) { } 28761eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2877ba7bc5584b8d46f4e8deb3a9d363256908fa86eaTed Kremenek unsigned getNumInits() const { return InitExprs.size(); } 28781eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 28791eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump const Expr* getInit(unsigned Init) const { 2880c5ae899b4bbf65488445316c63168079177db0edSteve Naroff assert(Init < getNumInits() && "Initializer access out of range!"); 28814c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor return cast_or_null<Expr>(InitExprs[Init]); 288266b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson } 28831eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 28841eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump Expr* getInit(unsigned Init) { 2885c5ae899b4bbf65488445316c63168079177db0edSteve Naroff assert(Init < getNumInits() && "Initializer access out of range!"); 28864c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor return cast_or_null<Expr>(InitExprs[Init]); 288766b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson } 28881eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 28891eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump void setInit(unsigned Init, Expr *expr) { 2890c5ae899b4bbf65488445316c63168079177db0edSteve Naroff assert(Init < getNumInits() && "Initializer access out of range!"); 28919e8925e72f53a9e2c4633b6b48e965ed01702fe4Steve Naroff InitExprs[Init] = expr; 28929e8925e72f53a9e2c4633b6b48e965ed01702fe4Steve Naroff } 2893c5ae899b4bbf65488445316c63168079177db0edSteve Naroff 2894fa2192042f223b5122a9e17719930f77634fd31fDouglas Gregor /// \brief Reserve space for some number of initializers. 2895709210feee317b8d6690dd1d15c2b74cfe55e261Ted Kremenek void reserveInits(ASTContext &C, unsigned NumInits); 28961eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 28974c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// @brief Specify the number of initializers 28984c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// 28994c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// If there are more than @p NumInits initializers, the remaining 29004c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// initializers will be destroyed. If there are fewer than @p 29014c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// NumInits initializers, NULL expressions will be added for the 29024c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// unknown initializers. 29034c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor void resizeInits(ASTContext &Context, unsigned NumInits); 29044c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor 29054c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// @brief Updates the initializer at index @p Init with the new 29064c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// expression @p expr, and returns the old expression at that 29074c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// location. 29084c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// 29094c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// When @p Init is out of range for this initializer list, the 29104c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// initializer list will be extended with NULL expressions to 29114c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// accomodate the new entry. 2912709210feee317b8d6690dd1d15c2b74cfe55e261Ted Kremenek Expr *updateInit(ASTContext &C, unsigned Init, Expr *expr); 2913c5ae899b4bbf65488445316c63168079177db0edSteve Naroff 29140bb76897bedb8b747efc6523efb432fc24966118Douglas Gregor /// \brief If this initializes a union, specifies which field in the 29150bb76897bedb8b747efc6523efb432fc24966118Douglas Gregor /// union to initialize. 29160bb76897bedb8b747efc6523efb432fc24966118Douglas Gregor /// 29170bb76897bedb8b747efc6523efb432fc24966118Douglas Gregor /// Typically, this field is the first named field within the 29180bb76897bedb8b747efc6523efb432fc24966118Douglas Gregor /// union. However, a designated initializer can specify the 29190bb76897bedb8b747efc6523efb432fc24966118Douglas Gregor /// initialization of a different field within the union. 29200bb76897bedb8b747efc6523efb432fc24966118Douglas Gregor FieldDecl *getInitializedFieldInUnion() { return UnionFieldInit; } 29210bb76897bedb8b747efc6523efb432fc24966118Douglas Gregor void setInitializedFieldInUnion(FieldDecl *FD) { UnionFieldInit = FD; } 29220bb76897bedb8b747efc6523efb432fc24966118Douglas Gregor 2923c5ae899b4bbf65488445316c63168079177db0edSteve Naroff // Explicit InitListExpr's originate from source code (and have valid source 2924c5ae899b4bbf65488445316c63168079177db0edSteve Naroff // locations). Implicit InitListExpr's are created by the semantic analyzer. 2925b3eef68111ffc220e449be96da1747998c057790Douglas Gregor bool isExplicit() { 2926b3eef68111ffc220e449be96da1747998c057790Douglas Gregor return LBraceLoc.isValid() && RBraceLoc.isValid(); 2927b3eef68111ffc220e449be96da1747998c057790Douglas Gregor } 29281eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2929d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor SourceLocation getLBraceLoc() const { return LBraceLoc; } 2930d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor void setLBraceLoc(SourceLocation Loc) { LBraceLoc = Loc; } 2931d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor SourceLocation getRBraceLoc() const { return RBraceLoc; } 293287fd703e097c27d63479cb83b687d4000a22bbb1Douglas Gregor void setRBraceLoc(SourceLocation Loc) { RBraceLoc = Loc; } 293387fd703e097c27d63479cb83b687d4000a22bbb1Douglas Gregor 29344c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// @brief Retrieve the initializer list that describes the 29354c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// syntactic form of the initializer. 29364c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// 29371eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /// 29384c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor InitListExpr *getSyntacticForm() const { return SyntacticForm; } 29394c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor void setSyntacticForm(InitListExpr *Init) { SyntacticForm = Init; } 29404c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor 2941a9c878086036de36482cc21e35a33cabe9699b0aDouglas Gregor bool hadArrayRangeDesignator() const { return HadArrayRangeDesignator; } 29421eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump void sawArrayRangeDesignator(bool ARD = true) { 2943d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor HadArrayRangeDesignator = ARD; 2944a9c878086036de36482cc21e35a33cabe9699b0aDouglas Gregor } 2945a9c878086036de36482cc21e35a33cabe9699b0aDouglas Gregor 294666b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson virtual SourceRange getSourceRange() const { 294766b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson return SourceRange(LBraceLoc, RBraceLoc); 29481eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump } 294966b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson static bool classof(const Stmt *T) { 29501eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == InitListExprClass; 295166b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson } 295266b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson static bool classof(const InitListExpr *) { return true; } 29531eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 295466b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson // Iterators 295566b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson virtual child_iterator child_begin(); 295666b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson virtual child_iterator child_end(); 29571eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2958709210feee317b8d6690dd1d15c2b74cfe55e261Ted Kremenek typedef InitExprsTy::iterator iterator; 29598111a6150cb68a238d55a31f9f4f90869a43f988Zhongxing Xu typedef InitExprsTy::const_iterator const_iterator; 2960709210feee317b8d6690dd1d15c2b74cfe55e261Ted Kremenek typedef InitExprsTy::reverse_iterator reverse_iterator; 29618111a6150cb68a238d55a31f9f4f90869a43f988Zhongxing Xu typedef InitExprsTy::const_reverse_iterator const_reverse_iterator; 29621eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2963ba7bc5584b8d46f4e8deb3a9d363256908fa86eaTed Kremenek iterator begin() { return InitExprs.begin(); } 29648111a6150cb68a238d55a31f9f4f90869a43f988Zhongxing Xu const_iterator begin() const { return InitExprs.begin(); } 2965ba7bc5584b8d46f4e8deb3a9d363256908fa86eaTed Kremenek iterator end() { return InitExprs.end(); } 29668111a6150cb68a238d55a31f9f4f90869a43f988Zhongxing Xu const_iterator end() const { return InitExprs.end(); } 2967ba7bc5584b8d46f4e8deb3a9d363256908fa86eaTed Kremenek reverse_iterator rbegin() { return InitExprs.rbegin(); } 29688111a6150cb68a238d55a31f9f4f90869a43f988Zhongxing Xu const_reverse_iterator rbegin() const { return InitExprs.rbegin(); } 2969ba7bc5584b8d46f4e8deb3a9d363256908fa86eaTed Kremenek reverse_iterator rend() { return InitExprs.rend(); } 29708111a6150cb68a238d55a31f9f4f90869a43f988Zhongxing Xu const_reverse_iterator rend() const { return InitExprs.rend(); } 297166b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson}; 297266b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson 297305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// @brief Represents a C99 designated initializer expression. 297405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// 297505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// A designated initializer expression (C99 6.7.8) contains one or 297605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// more designators (which can be field designators, array 297705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// designators, or GNU array-range designators) followed by an 297805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// expression that initializes the field or element(s) that the 297905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// designators refer to. For example, given: 29801eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// 298105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// @code 298205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// struct point { 298305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// double x; 298405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// double y; 298505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// }; 298605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// struct point ptarray[10] = { [2].y = 1.0, [2].x = 2.0, [0].x = 1.0 }; 298705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// @endcode 298805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// 298905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// The InitListExpr contains three DesignatedInitExprs, the first of 299005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// which covers @c [2].y=1.0. This DesignatedInitExpr will have two 299105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// designators, one array designator for @c [2] followed by one field 299205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// designator for @c .y. The initalization expression will be 1.0. 299305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregorclass DesignatedInitExpr : public Expr { 2994ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregorpublic: 2995ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor /// \brief Forward declaration of the Designator class. 2996ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor class Designator; 2997ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor 2998ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregorprivate: 299905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// The location of the '=' or ':' prior to the actual initializer 300005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// expression. 300105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor SourceLocation EqualOrColonLoc; 300205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 3003eeae8f072748affce25ab4064982626361293390Douglas Gregor /// Whether this designated initializer used the GNU deprecated 300405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// syntax rather than the C99 '=' syntax. 3005eeae8f072748affce25ab4064982626361293390Douglas Gregor bool GNUSyntax : 1; 300605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 300705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// The number of designators in this initializer expression. 300805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor unsigned NumDesignators : 15; 300905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 3010ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor /// \brief The designators in this designated initialization 3011ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor /// expression. 3012ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor Designator *Designators; 3013ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor 301405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// The number of subexpressions of this initializer expression, 301505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// which contains both the initializer and any additional 301605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// expressions used by array and array-range designators. 301705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor unsigned NumSubExprs : 16; 301805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 3019ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor 3020319d57f21600dd2c4d52ccc27bd12ce260b174e7Douglas Gregor DesignatedInitExpr(ASTContext &C, QualType Ty, unsigned NumDesignators, 3021ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor const Designator *Designators, 3022eeae8f072748affce25ab4064982626361293390Douglas Gregor SourceLocation EqualOrColonLoc, bool GNUSyntax, 30239ea62768fca25d829d80199cf4f8cf0f4dd39251Douglas Gregor Expr **IndexExprs, unsigned NumIndexExprs, 30249ea62768fca25d829d80199cf4f8cf0f4dd39251Douglas Gregor Expr *Init); 302505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 3026d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor explicit DesignatedInitExpr(unsigned NumSubExprs) 3027d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor : Expr(DesignatedInitExprClass, EmptyShell()), 3028d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor NumDesignators(0), Designators(0), NumSubExprs(NumSubExprs) { } 3029d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor 303005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregorpublic: 303105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// A field designator, e.g., ".x". 303205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor struct FieldDesignator { 303305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// Refers to the field that is being initialized. The low bit 303405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// of this field determines whether this is actually a pointer 303505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// to an IdentifierInfo (if 1) or a FieldDecl (if 0). When 303605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// initially constructed, a field designator will store an 303705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// IdentifierInfo*. After semantic analysis has resolved that 303805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// name, the field designator will instead store a FieldDecl*. 303905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor uintptr_t NameOrField; 30401eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 304105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// The location of the '.' in the designated initializer. 304205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor unsigned DotLoc; 30431eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 304405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// The location of the field name in the designated initializer. 304505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor unsigned FieldLoc; 304605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor }; 304705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 304805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// An array or GNU array-range designator, e.g., "[9]" or "[10..15]". 304905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor struct ArrayOrRangeDesignator { 305005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// Location of the first index expression within the designated 305105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// initializer expression's list of subexpressions. 305205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor unsigned Index; 305305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// The location of the '[' starting the array range designator. 305405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor unsigned LBracketLoc; 305505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// The location of the ellipsis separating the start and end 305605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// indices. Only valid for GNU array-range designators. 305705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor unsigned EllipsisLoc; 305805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// The location of the ']' terminating the array range designator. 30591eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump unsigned RBracketLoc; 306005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor }; 306105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 306205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// @brief Represents a single C99 designator. 306305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// 306405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// @todo This class is infuriatingly similar to clang::Designator, 306505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// but minor differences (storing indices vs. storing pointers) 306605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// keep us from reusing it. Try harder, later, to rectify these 306705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// differences. 306805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor class Designator { 306905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// @brief The kind of designator this describes. 307005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor enum { 307105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor FieldDesignator, 307205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor ArrayDesignator, 307305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor ArrayRangeDesignator 307405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } Kind; 307505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 307605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor union { 307705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// A field designator, e.g., ".x". 307805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor struct FieldDesignator Field; 307905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// An array or GNU array-range designator, e.g., "[9]" or "[10..15]". 308005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor struct ArrayOrRangeDesignator ArrayOrRange; 308105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor }; 308205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor friend class DesignatedInitExpr; 308305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 308405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor public: 3085ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor Designator() {} 3086ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor 308705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// @brief Initializes a field designator. 30881eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump Designator(const IdentifierInfo *FieldName, SourceLocation DotLoc, 30891eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump SourceLocation FieldLoc) 309005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor : Kind(FieldDesignator) { 309105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor Field.NameOrField = reinterpret_cast<uintptr_t>(FieldName) | 0x01; 309205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor Field.DotLoc = DotLoc.getRawEncoding(); 309305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor Field.FieldLoc = FieldLoc.getRawEncoding(); 309405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } 309505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 309605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// @brief Initializes an array designator. 30971eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump Designator(unsigned Index, SourceLocation LBracketLoc, 309805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor SourceLocation RBracketLoc) 309905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor : Kind(ArrayDesignator) { 310005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor ArrayOrRange.Index = Index; 310105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor ArrayOrRange.LBracketLoc = LBracketLoc.getRawEncoding(); 310205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor ArrayOrRange.EllipsisLoc = SourceLocation().getRawEncoding(); 310305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor ArrayOrRange.RBracketLoc = RBracketLoc.getRawEncoding(); 310405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } 310505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 310605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// @brief Initializes a GNU array-range designator. 31071eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump Designator(unsigned Index, SourceLocation LBracketLoc, 310805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor SourceLocation EllipsisLoc, SourceLocation RBracketLoc) 310905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor : Kind(ArrayRangeDesignator) { 311005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor ArrayOrRange.Index = Index; 311105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor ArrayOrRange.LBracketLoc = LBracketLoc.getRawEncoding(); 311205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor ArrayOrRange.EllipsisLoc = EllipsisLoc.getRawEncoding(); 311305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor ArrayOrRange.RBracketLoc = RBracketLoc.getRawEncoding(); 311405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } 311505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 311605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor bool isFieldDesignator() const { return Kind == FieldDesignator; } 311705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor bool isArrayDesignator() const { return Kind == ArrayDesignator; } 311805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor bool isArrayRangeDesignator() const { return Kind == ArrayRangeDesignator; } 311905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 312005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor IdentifierInfo * getFieldName(); 312105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 312205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor FieldDecl *getField() { 312305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor assert(Kind == FieldDesignator && "Only valid on a field designator"); 312405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor if (Field.NameOrField & 0x01) 312505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor return 0; 312605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor else 312705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor return reinterpret_cast<FieldDecl *>(Field.NameOrField); 312805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } 312905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 313005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor void setField(FieldDecl *FD) { 313105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor assert(Kind == FieldDesignator && "Only valid on a field designator"); 313205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor Field.NameOrField = reinterpret_cast<uintptr_t>(FD); 313305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } 313405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 313587f55cf59e82f246d8605733e9300d0c5f6830a6Douglas Gregor SourceLocation getDotLoc() const { 313687f55cf59e82f246d8605733e9300d0c5f6830a6Douglas Gregor assert(Kind == FieldDesignator && "Only valid on a field designator"); 313787f55cf59e82f246d8605733e9300d0c5f6830a6Douglas Gregor return SourceLocation::getFromRawEncoding(Field.DotLoc); 313887f55cf59e82f246d8605733e9300d0c5f6830a6Douglas Gregor } 313987f55cf59e82f246d8605733e9300d0c5f6830a6Douglas Gregor 314005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor SourceLocation getFieldLoc() const { 314105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor assert(Kind == FieldDesignator && "Only valid on a field designator"); 314205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor return SourceLocation::getFromRawEncoding(Field.FieldLoc); 314305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } 314405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 314505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor SourceLocation getLBracketLoc() const { 314605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor assert((Kind == ArrayDesignator || Kind == ArrayRangeDesignator) && 314705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor "Only valid on an array or array-range designator"); 314805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor return SourceLocation::getFromRawEncoding(ArrayOrRange.LBracketLoc); 314905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } 315005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 315105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor SourceLocation getRBracketLoc() const { 315205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor assert((Kind == ArrayDesignator || Kind == ArrayRangeDesignator) && 315305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor "Only valid on an array or array-range designator"); 315405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor return SourceLocation::getFromRawEncoding(ArrayOrRange.RBracketLoc); 315505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } 315605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 315705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor SourceLocation getEllipsisLoc() const { 315805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor assert(Kind == ArrayRangeDesignator && 315905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor "Only valid on an array-range designator"); 316005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor return SourceLocation::getFromRawEncoding(ArrayOrRange.EllipsisLoc); 316105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } 31624c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor 3163d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor unsigned getFirstExprIndex() const { 3164d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor assert((Kind == ArrayDesignator || Kind == ArrayRangeDesignator) && 3165d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor "Only valid on an array or array-range designator"); 3166d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor return ArrayOrRange.Index; 3167d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor } 3168d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor 31694c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor SourceLocation getStartLocation() const { 31704c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor if (Kind == FieldDesignator) 31714c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor return getDotLoc().isInvalid()? getFieldLoc() : getDotLoc(); 31724c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor else 31734c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor return getLBracketLoc(); 31744c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor } 317505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor }; 317605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 31771eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static DesignatedInitExpr *Create(ASTContext &C, Designator *Designators, 317805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor unsigned NumDesignators, 317905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor Expr **IndexExprs, unsigned NumIndexExprs, 318005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor SourceLocation EqualOrColonLoc, 3181eeae8f072748affce25ab4064982626361293390Douglas Gregor bool GNUSyntax, Expr *Init); 318205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 3183d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor static DesignatedInitExpr *CreateEmpty(ASTContext &C, unsigned NumIndexExprs); 3184d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor 318505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// @brief Returns the number of designators in this initializer. 318605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor unsigned size() const { return NumDesignators; } 318705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 318805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor // Iterator access to the designators. 318905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor typedef Designator* designators_iterator; 3190ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor designators_iterator designators_begin() { return Designators; } 31911eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump designators_iterator designators_end() { 31921eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return Designators + NumDesignators; 3193ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor } 319405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 3195711997184366d584c9c437102cae1e9d9927b986Douglas Gregor Designator *getDesignator(unsigned Idx) { return &designators_begin()[Idx]; } 3196711997184366d584c9c437102cae1e9d9927b986Douglas Gregor 3197c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt void setDesignators(ASTContext &C, const Designator *Desigs, 3198319d57f21600dd2c4d52ccc27bd12ce260b174e7Douglas Gregor unsigned NumDesigs); 3199d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor 320005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor Expr *getArrayIndex(const Designator& D); 320105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor Expr *getArrayRangeStart(const Designator& D); 320205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor Expr *getArrayRangeEnd(const Designator& D); 320305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 320405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// @brief Retrieve the location of the '=' that precedes the 320505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// initializer value itself, if present. 320605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor SourceLocation getEqualOrColonLoc() const { return EqualOrColonLoc; } 3207d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor void setEqualOrColonLoc(SourceLocation L) { EqualOrColonLoc = L; } 320805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 320905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// @brief Determines whether this designated initializer used the 3210eeae8f072748affce25ab4064982626361293390Douglas Gregor /// deprecated GNU syntax for designated initializers. 3211eeae8f072748affce25ab4064982626361293390Douglas Gregor bool usesGNUSyntax() const { return GNUSyntax; } 3212d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor void setGNUSyntax(bool GNU) { GNUSyntax = GNU; } 321305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 321405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// @brief Retrieve the initializer value. 32151eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump Expr *getInit() const { 321605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor return cast<Expr>(*const_cast<DesignatedInitExpr*>(this)->child_begin()); 321705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } 321805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 321905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor void setInit(Expr *init) { 322005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor *child_begin() = init; 322105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } 322205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 3223d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor /// \brief Retrieve the total number of subexpressions in this 3224d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor /// designated initializer expression, including the actual 3225d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor /// initialized value and any expressions that occur within array 3226d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor /// and array-range designators. 3227d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor unsigned getNumSubExprs() const { return NumSubExprs; } 3228d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor 3229d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor Expr *getSubExpr(unsigned Idx) { 3230d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor assert(Idx < NumSubExprs && "Subscript out of range"); 3231d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor char* Ptr = static_cast<char*>(static_cast<void *>(this)); 3232d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor Ptr += sizeof(DesignatedInitExpr); 3233d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor return reinterpret_cast<Expr**>(reinterpret_cast<void**>(Ptr))[Idx]; 3234d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor } 3235d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor 3236d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor void setSubExpr(unsigned Idx, Expr *E) { 3237d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor assert(Idx < NumSubExprs && "Subscript out of range"); 3238d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor char* Ptr = static_cast<char*>(static_cast<void *>(this)); 3239d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor Ptr += sizeof(DesignatedInitExpr); 3240d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor reinterpret_cast<Expr**>(reinterpret_cast<void**>(Ptr))[Idx] = E; 3241d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor } 3242d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor 3243ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor /// \brief Replaces the designator at index @p Idx with the series 3244ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor /// of designators in [First, Last). 3245319d57f21600dd2c4d52ccc27bd12ce260b174e7Douglas Gregor void ExpandDesignator(ASTContext &C, unsigned Idx, const Designator *First, 3246ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor const Designator *Last); 3247ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor 324805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor virtual SourceRange getSourceRange() const; 324905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 325005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor static bool classof(const Stmt *T) { 32511eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == DesignatedInitExprClass; 325205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } 325305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor static bool classof(const DesignatedInitExpr *) { return true; } 325405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 325505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor // Iterators 325605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor virtual child_iterator child_begin(); 32571eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump virtual child_iterator child_end(); 32583498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor}; 32593498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor 32603498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor/// \brief Represents an implicitly-generated value initialization of 32613498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor/// an object of a given type. 32623498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor/// 32631a51b4a11b7db25cac2134249711ecaaf9d1c0a8Douglas Gregor/// Implicit value initializations occur within semantic initializer 32641a51b4a11b7db25cac2134249711ecaaf9d1c0a8Douglas Gregor/// list expressions (InitListExpr) as placeholders for subobject 32653498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor/// initializations not explicitly specified by the user. 32661a51b4a11b7db25cac2134249711ecaaf9d1c0a8Douglas Gregor/// 32671a51b4a11b7db25cac2134249711ecaaf9d1c0a8Douglas Gregor/// \see InitListExpr 32681eb4433ac451dc16f4133a88af2d002ac26c58efMike Stumpclass ImplicitValueInitExpr : public Expr { 32693498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregorpublic: 32701eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump explicit ImplicitValueInitExpr(QualType ty) 32712333f7727f97018d6742e1e0938133bcfad967abEli Friedman : Expr(ImplicitValueInitExprClass, ty, false, false) { } 32723498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor 3273d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor /// \brief Construct an empty implicit value initialization. 3274d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor explicit ImplicitValueInitExpr(EmptyShell Empty) 3275d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor : Expr(ImplicitValueInitExprClass, Empty) { } 3276d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor 32771eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 32783498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor return T->getStmtClass() == ImplicitValueInitExprClass; 32793498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor } 32803498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor static bool classof(const ImplicitValueInitExpr *) { return true; } 32813498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor 32823498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor virtual SourceRange getSourceRange() const { 32833498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor return SourceRange(); 32843498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor } 32853498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor 32863498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor // Iterators 32873498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor virtual child_iterator child_begin(); 32881eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump virtual child_iterator child_end(); 328905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor}; 329005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 32912ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman 32922ef13e5abef0570a9f567b4671367275c05d4d34Nate Begemanclass ParenListExpr : public Expr { 32932ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman Stmt **Exprs; 32942ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman unsigned NumExprs; 32952ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman SourceLocation LParenLoc, RParenLoc; 32962ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman 32972ef13e5abef0570a9f567b4671367275c05d4d34Nate Begemanpublic: 32981eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump ParenListExpr(ASTContext& C, SourceLocation lparenloc, Expr **exprs, 32992ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman unsigned numexprs, SourceLocation rparenloc); 33002ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman 33012ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman /// \brief Build an empty paren list. 330237bdfe284ad365f753741d1d89c078c148b3f4afArgyrios Kyrtzidis explicit ParenListExpr(EmptyShell Empty) : Expr(ParenListExprClass, Empty) { } 33031eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 33042ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman unsigned getNumExprs() const { return NumExprs; } 33051eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 33061eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump const Expr* getExpr(unsigned Init) const { 33072ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman assert(Init < getNumExprs() && "Initializer access out of range!"); 33082ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman return cast_or_null<Expr>(Exprs[Init]); 33092ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman } 33101eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 33111eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump Expr* getExpr(unsigned Init) { 33122ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman assert(Init < getNumExprs() && "Initializer access out of range!"); 33132ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman return cast_or_null<Expr>(Exprs[Init]); 33142ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman } 33152ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman 331683ddad3ab513f5d73698cf9fbeb4ed3f011bc3b9Douglas Gregor Expr **getExprs() { return reinterpret_cast<Expr **>(Exprs); } 33171eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 33182ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman SourceLocation getLParenLoc() const { return LParenLoc; } 33192ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman SourceLocation getRParenLoc() const { return RParenLoc; } 33202ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman 33212ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman virtual SourceRange getSourceRange() const { 33222ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman return SourceRange(LParenLoc, RParenLoc); 33231eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump } 33242ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman static bool classof(const Stmt *T) { 33251eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == ParenListExprClass; 33262ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman } 33272ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman static bool classof(const ParenListExpr *) { return true; } 33281eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 33292ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman // Iterators 33302ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman virtual child_iterator child_begin(); 33312ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman virtual child_iterator child_end(); 333237bdfe284ad365f753741d1d89c078c148b3f4afArgyrios Kyrtzidis 333360adf4acf40b72227740bf966fb87eebddff3f37Sebastian Redl friend class ASTStmtReader; 33343397c5570369f19b2d6c52e898f708d75ceede1fSebastian Redl friend class ASTStmtWriter; 33352ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman}; 33362ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman 33371eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 33384eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff//===----------------------------------------------------------------------===// 33394eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff// Clang Extensions 33404eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff//===----------------------------------------------------------------------===// 33414eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff 3342a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner 3343a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner/// ExtVectorElementExpr - This represents access to specific elements of a 3344a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner/// vector, and may occur on the left hand side or right hand side. For example 3345a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner/// the following is legal: "V.xy = V.zw" if V is a 4 element extended vector. 3346a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner/// 334773525de7fd9bdd534382dc89a24f1f76db3e04b9Chris Lattner/// Note that the base may have either vector or pointer to vector type, just 334873525de7fd9bdd534382dc89a24f1f76db3e04b9Chris Lattner/// like a struct field reference. 334973525de7fd9bdd534382dc89a24f1f76db3e04b9Chris Lattner/// 3350a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattnerclass ExtVectorElementExpr : public Expr { 3351a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner Stmt *Base; 3352d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor IdentifierInfo *Accessor; 3353a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner SourceLocation AccessorLoc; 3354a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattnerpublic: 3355a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner ExtVectorElementExpr(QualType ty, Expr *base, IdentifierInfo &accessor, 3356a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner SourceLocation loc) 33572333f7727f97018d6742e1e0938133bcfad967abEli Friedman : Expr(ExtVectorElementExprClass, ty, base->isTypeDependent(), 33582333f7727f97018d6742e1e0938133bcfad967abEli Friedman base->isValueDependent()), 3359d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor Base(base), Accessor(&accessor), AccessorLoc(loc) {} 33601eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3361d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor /// \brief Build an empty vector element expression. 3362d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor explicit ExtVectorElementExpr(EmptyShell Empty) 3363d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor : Expr(ExtVectorElementExprClass, Empty) { } 3364d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor 3365a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner const Expr *getBase() const { return cast<Expr>(Base); } 3366a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner Expr *getBase() { return cast<Expr>(Base); } 3367d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor void setBase(Expr *E) { Base = E; } 3368d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor 3369d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor IdentifierInfo &getAccessor() const { return *Accessor; } 3370d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor void setAccessor(IdentifierInfo *II) { Accessor = II; } 3371d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor 3372d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor SourceLocation getAccessorLoc() const { return AccessorLoc; } 3373d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor void setAccessorLoc(SourceLocation L) { AccessorLoc = L; } 3374d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor 3375a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner /// getNumElements - Get the number of components being selected. 3376a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner unsigned getNumElements() const; 33771eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3378a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner /// containsDuplicateElements - Return true if any element access is 3379a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner /// repeated. 3380a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner bool containsDuplicateElements() const; 33811eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3382a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner /// getEncodedElementAccess - Encode the elements accessed into an llvm 3383a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner /// aggregate Constant of ConstantInt(s). 3384a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner void getEncodedElementAccess(llvm::SmallVectorImpl<unsigned> &Elts) const; 33851eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3386a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner virtual SourceRange getSourceRange() const { 3387a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner return SourceRange(getBase()->getLocStart(), AccessorLoc); 3388a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner } 33891eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 33902140e904dbe53657339cb5b1cc13de563ca0d1fcChris Lattner /// isArrow - Return true if the base expression is a pointer to vector, 33912140e904dbe53657339cb5b1cc13de563ca0d1fcChris Lattner /// return false if the base expression is a vector. 33922140e904dbe53657339cb5b1cc13de563ca0d1fcChris Lattner bool isArrow() const; 33931eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 33941eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 33951eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == ExtVectorElementExprClass; 3396a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner } 3397a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner static bool classof(const ExtVectorElementExpr *) { return true; } 33981eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3399a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner // Iterators 3400a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner virtual child_iterator child_begin(); 3401a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner virtual child_iterator child_end(); 3402a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner}; 3403a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner 3404a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner 340556ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroff/// BlockExpr - Adaptor class for mixing a BlockDecl with expressions. 34069c3c902835ef7d37300463ad47176ec21a67dc8bSteve Naroff/// ^{ statement-body } or ^(int arg1, float arg2){ statement-body } 34074eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroffclass BlockExpr : public Expr { 340856ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroffprotected: 340956ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroff BlockDecl *TheBlock; 3410b83d287bc7f47d36fb0751a481e2ef9308b37252Mike Stump bool HasBlockDeclRefExprs; 34114eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroffpublic: 3412b83d287bc7f47d36fb0751a481e2ef9308b37252Mike Stump BlockExpr(BlockDecl *BD, QualType ty, bool hasBlockDeclRefExprs) 34132333f7727f97018d6742e1e0938133bcfad967abEli Friedman : Expr(BlockExprClass, ty, ty->isDependentType(), false), 3414b83d287bc7f47d36fb0751a481e2ef9308b37252Mike Stump TheBlock(BD), HasBlockDeclRefExprs(hasBlockDeclRefExprs) {} 34159c3c902835ef7d37300463ad47176ec21a67dc8bSteve Naroff 341684af7c27cdc615ff917a501d61256b4049383c97Douglas Gregor /// \brief Build an empty block expression. 341784af7c27cdc615ff917a501d61256b4049383c97Douglas Gregor explicit BlockExpr(EmptyShell Empty) : Expr(BlockExprClass, Empty) { } 341884af7c27cdc615ff917a501d61256b4049383c97Douglas Gregor 3419d5cab5435371b8cc74a9e05ebd40b5995ebad149Anders Carlsson const BlockDecl *getBlockDecl() const { return TheBlock; } 342056ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroff BlockDecl *getBlockDecl() { return TheBlock; } 342184af7c27cdc615ff917a501d61256b4049383c97Douglas Gregor void setBlockDecl(BlockDecl *BD) { TheBlock = BD; } 342284af7c27cdc615ff917a501d61256b4049383c97Douglas Gregor 342356ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroff // Convenience functions for probing the underlying BlockDecl. 342456ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroff SourceLocation getCaretLocation() const; 342556ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroff const Stmt *getBody() const; 342656ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroff Stmt *getBody(); 34279c3c902835ef7d37300463ad47176ec21a67dc8bSteve Naroff 34289c3c902835ef7d37300463ad47176ec21a67dc8bSteve Naroff virtual SourceRange getSourceRange() const { 342956ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroff return SourceRange(getCaretLocation(), getBody()->getLocEnd()); 34309c3c902835ef7d37300463ad47176ec21a67dc8bSteve Naroff } 34319c3c902835ef7d37300463ad47176ec21a67dc8bSteve Naroff 343256ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroff /// getFunctionType - Return the underlying function type for this block. 343356ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroff const FunctionType *getFunctionType() const; 343456ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroff 3435b83d287bc7f47d36fb0751a481e2ef9308b37252Mike Stump /// hasBlockDeclRefExprs - Return true iff the block has BlockDeclRefExpr 34365b54b88c4082bb81b8b341b622fda9a85cbd5fadChris Lattner /// inside of the block that reference values outside the block. 3437b83d287bc7f47d36fb0751a481e2ef9308b37252Mike Stump bool hasBlockDeclRefExprs() const { return HasBlockDeclRefExprs; } 343884af7c27cdc615ff917a501d61256b4049383c97Douglas Gregor void setHasBlockDeclRefExprs(bool BDRE) { HasBlockDeclRefExprs = BDRE; } 3439b83d287bc7f47d36fb0751a481e2ef9308b37252Mike Stump 34401eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 34419c3c902835ef7d37300463ad47176ec21a67dc8bSteve Naroff return T->getStmtClass() == BlockExprClass; 34424eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff } 34434eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff static bool classof(const BlockExpr *) { return true; } 34441eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 34454eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff // Iterators 34464eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff virtual child_iterator child_begin(); 34474eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff virtual child_iterator child_end(); 34484eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff}; 34491eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 34504eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff/// BlockDeclRefExpr - A reference to a declared variable, function, 34514eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff/// enum, etc. 34524eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroffclass BlockDeclRefExpr : public Expr { 34531eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump ValueDecl *D; 34544eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff SourceLocation Loc; 34557d5c74ecbbd8719436c071f38657bc8e97ee4a24Fariborz Jahanian bool IsByRef : 1; 34567d5c74ecbbd8719436c071f38657bc8e97ee4a24Fariborz Jahanian bool ConstQualAdded : 1; 345789f9d3a7651d1225f3f56ae3387c83b98a26da00Fariborz Jahanian Stmt *CopyConstructorVal; 34584eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroffpublic: 34592333f7727f97018d6742e1e0938133bcfad967abEli Friedman // FIXME: Fix type/value dependence! 34601eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump BlockDeclRefExpr(ValueDecl *d, QualType t, SourceLocation l, bool ByRef, 346189f9d3a7651d1225f3f56ae3387c83b98a26da00Fariborz Jahanian bool constAdded = false, 346284ca008a462b515f63871253f494d53c9190363cFariborz Jahanian Stmt *copyConstructorVal = 0) 346384ca008a462b515f63871253f494d53c9190363cFariborz Jahanian : Expr(BlockDeclRefExprClass, t, (!t.isNull() && t->isDependentType()),false), 346452bc56a296b11b4fc6bf5ddf4ded5262f6484bdbFariborz Jahanian D(d), Loc(l), IsByRef(ByRef), 346589f9d3a7651d1225f3f56ae3387c83b98a26da00Fariborz Jahanian ConstQualAdded(constAdded), CopyConstructorVal(copyConstructorVal) {} 346694cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor 346794cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor // \brief Build an empty reference to a declared variable in a 346894cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor // block. 346994cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor explicit BlockDeclRefExpr(EmptyShell Empty) 347094cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor : Expr(BlockDeclRefExprClass, Empty) { } 34711eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 34724eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff ValueDecl *getDecl() { return D; } 34734eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff const ValueDecl *getDecl() const { return D; } 347494cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor void setDecl(ValueDecl *VD) { D = VD; } 347594cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor 347694cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor SourceLocation getLocation() const { return Loc; } 347794cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor void setLocation(SourceLocation L) { Loc = L; } 347894cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor 34794eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff virtual SourceRange getSourceRange() const { return SourceRange(Loc); } 34801eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 34814eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff bool isByRef() const { return IsByRef; } 348294cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor void setByRef(bool BR) { IsByRef = BR; } 34831eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 34847d5c74ecbbd8719436c071f38657bc8e97ee4a24Fariborz Jahanian bool isConstQualAdded() const { return ConstQualAdded; } 34857d5c74ecbbd8719436c071f38657bc8e97ee4a24Fariborz Jahanian void setConstQualAdded(bool C) { ConstQualAdded = C; } 348689f9d3a7651d1225f3f56ae3387c83b98a26da00Fariborz Jahanian 348789f9d3a7651d1225f3f56ae3387c83b98a26da00Fariborz Jahanian const Expr *getCopyConstructorExpr() const 348889f9d3a7651d1225f3f56ae3387c83b98a26da00Fariborz Jahanian { return cast_or_null<Expr>(CopyConstructorVal); } 348989f9d3a7651d1225f3f56ae3387c83b98a26da00Fariborz Jahanian Expr *getCopyConstructorExpr() 349089f9d3a7651d1225f3f56ae3387c83b98a26da00Fariborz Jahanian { return cast_or_null<Expr>(CopyConstructorVal); } 349189f9d3a7651d1225f3f56ae3387c83b98a26da00Fariborz Jahanian void setCopyConstructorExpr(Expr *E) { CopyConstructorVal = E; } 349294cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor 34931eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 34941eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == BlockDeclRefExprClass; 34954eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff } 34964eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff static bool classof(const BlockDeclRefExpr *) { return true; } 34971eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 34984eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff // Iterators 34994eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff virtual child_iterator child_begin(); 35004eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff virtual child_iterator child_end(); 35014eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff}; 35024eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff 35035f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} // end namespace clang 35045f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 35055f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer#endif 3506