Expr.h revision bebbe0d9b7568ce43a464286bee49429489ef483
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; 42f6a1648197562e0b133440d612d9af297d0a86ccJohn McCall class ObjCPropertyRefExpr; 43833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall class TemplateArgumentLoc; 44d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall class TemplateArgumentListInfo; 4588a3514f36de96b19cdf50141c640df1a5f13f6cDouglas Gregor 467ab9d574d27ecee1f130e5755aa403e5ab529b6bAnders Carlsson/// \brief A simple array of base specifiers. 47f871d0cc377a1367b519a6cce26be74607566ebaJohn McCalltypedef llvm::SmallVector<CXXBaseSpecifier*, 4> CXXCastPath; 487ab9d574d27ecee1f130e5755aa403e5ab529b6bAnders Carlsson 495f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// Expr - This represents one expression. Note that Expr's are subclasses of 505f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// Stmt. This allows an expression to be transparently used any place a Stmt 515f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// is required. 525f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 535f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass Expr : public Stmt { 545f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer QualType TR; 55898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor 56bef0efd11bc4430a3ee437a3213cec5c18af855aChris Lattner virtual void ANCHOR(); // key function. 575baba9d98364a3525d6afa15a04cdad82fd6dd30John McCall 588e6285af719adc6f86d6faa235d22a08eb68ee3aJohn McCallprotected: 59f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall Expr(StmtClass SC, QualType T, ExprValueKind VK, ExprObjectKind OK, 60bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor bool TD, bool VD, bool ContainsUnexpandedParameterPack) : Stmt(SC) { 618e6285af719adc6f86d6faa235d22a08eb68ee3aJohn McCall ExprBits.TypeDependent = TD; 628e6285af719adc6f86d6faa235d22a08eb68ee3aJohn McCall ExprBits.ValueDependent = VD; 63f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall ExprBits.ValueKind = VK; 64f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall ExprBits.ObjectKind = OK; 65bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor ExprBits.ContainsUnexpandedParameterPack = ContainsUnexpandedParameterPack; 66898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor setType(T); 67898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor } 68898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor 690b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor /// \brief Construct an empty expression. 700b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor explicit Expr(StmtClass SC, EmptyShell) : Stmt(SC) { } 710b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor 721eb4433ac451dc16f4133a88af2d002ac26c58efMike Stumppublic: 73f7c2aa0b049272d8f318988c1965760dcb852578Douglas Gregor QualType getType() const { return TR; } 741eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump void setType(QualType t) { 759d293dfc0ad7c44ae0b5eb9517f1ed8c8d8b7ff7Douglas Gregor // In C++, the type of an expression is always adjusted so that it 769d293dfc0ad7c44ae0b5eb9517f1ed8c8d8b7ff7Douglas Gregor // will not have reference type an expression will never have 779d293dfc0ad7c44ae0b5eb9517f1ed8c8d8b7ff7Douglas Gregor // reference type (C++ [expr]p6). Use 789d293dfc0ad7c44ae0b5eb9517f1ed8c8d8b7ff7Douglas Gregor // QualType::getNonReferenceType() to retrieve the non-reference 799d293dfc0ad7c44ae0b5eb9517f1ed8c8d8b7ff7Douglas Gregor // type. Additionally, inspect Expr::isLvalue to determine whether 809d293dfc0ad7c44ae0b5eb9517f1ed8c8d8b7ff7Douglas Gregor // an expression that is adjusted in this manner should be 819d293dfc0ad7c44ae0b5eb9517f1ed8c8d8b7ff7Douglas Gregor // considered an lvalue. 82905d11d53aeb6b26744f44fedc2b2820c7a62df6Douglas Gregor assert((t.isNull() || !t->isReferenceType()) && 838320aaaa01d931aa234fc3bce05b399ef41898d5Daniel Dunbar "Expressions can't have reference type"); 84f7c2aa0b049272d8f318988c1965760dcb852578Douglas Gregor 851eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump TR = t; 869d293dfc0ad7c44ae0b5eb9517f1ed8c8d8b7ff7Douglas Gregor } 8777ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek 88898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// isValueDependent - Determines whether this expression is 89898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// value-dependent (C++ [temp.dep.constexpr]). For example, the 90898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// array bound of "Chars" in the following example is 911eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /// value-dependent. 92898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// @code 93898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// template<int Size, char (&Chars)[Size]> struct meta_string; 94898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// @endcode 958e6285af719adc6f86d6faa235d22a08eb68ee3aJohn McCall bool isValueDependent() const { return ExprBits.ValueDependent; } 96898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor 970b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor /// \brief Set whether this expression is value-dependent or not. 988e6285af719adc6f86d6faa235d22a08eb68ee3aJohn McCall void setValueDependent(bool VD) { ExprBits.ValueDependent = VD; } 990b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor 100898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// isTypeDependent - Determines whether this expression is 101898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// type-dependent (C++ [temp.dep.expr]), which means that its type 102898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// could change from one template instantiation to the next. For 103898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// example, the expressions "x" and "x + y" are type-dependent in 104898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// the following code, but "y" is not type-dependent: 105898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// @code 1061eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /// template<typename T> 107898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// void add(T x, int y) { 108898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// x + y; 109898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// } 110898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor /// @endcode 1118e6285af719adc6f86d6faa235d22a08eb68ee3aJohn McCall bool isTypeDependent() const { return ExprBits.TypeDependent; } 112898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor 1130b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor /// \brief Set whether this expression is type-dependent or not. 1148e6285af719adc6f86d6faa235d22a08eb68ee3aJohn McCall void setTypeDependent(bool TD) { ExprBits.TypeDependent = TD; } 1150b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor 116d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor /// \brief Whether this expression contains an unexpanded parameter 117d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor /// pack (for C++0x variadic templates). 118d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor /// 119d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor /// Given the following function template: 120d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor /// 121d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor /// \code 122d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor /// template<typename F, typename ...Types> 123d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor /// void forward(const F &f, Types &&...args) { 124d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor /// f(static_cast<Types&&>(args)...); 125d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor /// } 126d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor /// \endcode 127d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor /// 128d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor /// The expressions \c args and \c static_cast<Types&&>(args) both 129d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor /// contain parameter packs. 130d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor bool containsUnexpandedParameterPack() const { 131d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor return ExprBits.ContainsUnexpandedParameterPack; 132d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor } 133d0937224f383c7cc72c947119380f9713a070c73Douglas Gregor 134bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor /// \brief Set the bit that describes whether this expression 135bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor /// contains an unexpanded parameter pack. 136bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor void setContainsUnexpandedParameterPack(bool PP = true) { 137bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor ExprBits.ContainsUnexpandedParameterPack = PP; 138bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor } 139bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor 1405f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// SourceLocation tokens are not useful in isolation - they are low level 1415f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// value objects created/interpreted by SourceManager. We assume AST 1425f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// clients will have a pointer to the respective SourceManager. 1435f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer virtual SourceRange getSourceRange() const = 0; 1445f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1455f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// getExprLoc - Return the preferred location for the arrow when diagnosing 1465f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// a problem with a generic expression. 1475f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer virtual SourceLocation getExprLoc() const { return getLocStart(); } 1481eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 149026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner /// isUnusedResultAWarning - Return true if this immediate expression should 150026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner /// be warned about if the result is unused. If so, fill in Loc and Ranges 151026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner /// with location to warn on and the source range[s] to report with the 152026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner /// warning. 153026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner bool isUnusedResultAWarning(SourceLocation &Loc, SourceRange &R1, 154df317bf71653eeb235da8337b1e8e790f9653aa4Mike Stump SourceRange &R2, ASTContext &Ctx) const; 1551eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1567eb0a9eb0cde8444b97f9c5b713d9be7a6f1e607John McCall /// isLValue - True if this expression is an "l-value" according to 1577eb0a9eb0cde8444b97f9c5b713d9be7a6f1e607John McCall /// the rules of the current language. C and C++ give somewhat 1587eb0a9eb0cde8444b97f9c5b713d9be7a6f1e607John McCall /// different rules for this concept, but in general, the result of 1597eb0a9eb0cde8444b97f9c5b713d9be7a6f1e607John McCall /// an l-value expression identifies a specific object whereas the 1607eb0a9eb0cde8444b97f9c5b713d9be7a6f1e607John McCall /// result of an r-value expression is a value detached from any 1617eb0a9eb0cde8444b97f9c5b713d9be7a6f1e607John McCall /// specific storage. 1625f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// 1637eb0a9eb0cde8444b97f9c5b713d9be7a6f1e607John McCall /// C++0x divides the concept of "r-value" into pure r-values 1647eb0a9eb0cde8444b97f9c5b713d9be7a6f1e607John McCall /// ("pr-values") and so-called expiring values ("x-values"), which 1657eb0a9eb0cde8444b97f9c5b713d9be7a6f1e607John McCall /// identify specific objects that can be safely cannibalized for 1667eb0a9eb0cde8444b97f9c5b713d9be7a6f1e607John McCall /// their resources. This is an unfortunate abuse of terminology on 1677eb0a9eb0cde8444b97f9c5b713d9be7a6f1e607John McCall /// the part of the C++ committee. In Clang, when we say "r-value", 1687eb0a9eb0cde8444b97f9c5b713d9be7a6f1e607John McCall /// we generally mean a pr-value. 1697eb0a9eb0cde8444b97f9c5b713d9be7a6f1e607John McCall bool isLValue() const { return getValueKind() == VK_LValue; } 1707eb0a9eb0cde8444b97f9c5b713d9be7a6f1e607John McCall bool isRValue() const { return getValueKind() == VK_RValue; } 1717eb0a9eb0cde8444b97f9c5b713d9be7a6f1e607John McCall bool isXValue() const { return getValueKind() == VK_XValue; } 1727eb0a9eb0cde8444b97f9c5b713d9be7a6f1e607John McCall bool isGLValue() const { return getValueKind() != VK_RValue; } 1737eb0a9eb0cde8444b97f9c5b713d9be7a6f1e607John McCall 1747eb0a9eb0cde8444b97f9c5b713d9be7a6f1e607John McCall enum LValueClassification { 1755f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer LV_Valid, 1765f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer LV_NotObjectType, 1775f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer LV_IncompleteVoidType, 178fec0b49c3fa621fbf63e420f3d54a5bb3a0265d2Steve Naroff LV_DuplicateVectorComponents, 17986f194083504938df72135b5b66bf0c5cafd9498Douglas Gregor LV_InvalidExpression, 1802514a309204341798f96912ce7a90841bea59727Fariborz Jahanian LV_MemberFunction, 181e9ff443040cb571ae2c5c2626c4dc9a9a812d84aFariborz Jahanian LV_SubObjCPropertySetting, 182e873fb74219f48407ae0b8fa083aa7f0b6ff1427Douglas Gregor LV_ClassTemporary 1835f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer }; 1847eb0a9eb0cde8444b97f9c5b713d9be7a6f1e607John McCall /// Reasons why an expression might not be an l-value. 1857eb0a9eb0cde8444b97f9c5b713d9be7a6f1e607John McCall LValueClassification ClassifyLValue(ASTContext &Ctx) const; 18653202857c60214d80950a975e6e52aebf30bd16aEli Friedman 1875f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// isModifiableLvalue - C99 6.3.2.1: an lvalue that does not have array type, 1885f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// does not have an incomplete type, does not have a const-qualified type, 1891eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /// and if it is a structure or union, does not have any member (including, 1905f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// recursively, any member or element of all contained aggregates or unions) 1915f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// with a const-qualified type. 19244e35f7b2b5da1eb338639e46bf0b5522e75c5f3Daniel Dunbar /// 19344e35f7b2b5da1eb338639e46bf0b5522e75c5f3Daniel Dunbar /// \param Loc [in] [out] - A source location which *may* be filled 19444e35f7b2b5da1eb338639e46bf0b5522e75c5f3Daniel Dunbar /// in with the location of the expression making this a 19544e35f7b2b5da1eb338639e46bf0b5522e75c5f3Daniel Dunbar /// non-modifiable lvalue, if specified. 1965f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer enum isModifiableLvalueResult { 1975f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer MLV_Valid, 1985f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer MLV_NotObjectType, 1995f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer MLV_IncompleteVoidType, 200fec0b49c3fa621fbf63e420f3d54a5bb3a0265d2Steve Naroff MLV_DuplicateVectorComponents, 2015f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer MLV_InvalidExpression, 202ca354faa7e9b99af17070c82b9662a5fca76422cChris Lattner MLV_LValueCast, // Specialized form of MLV_InvalidExpression. 2035f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer MLV_IncompleteType, 2045f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer MLV_ConstQualified, 2054f6a7d7ead09b439216c32f2de806a998aeb222aSteve Naroff MLV_ArrayType, 2065daf570d0ce027e18ed5f9d66e6b2a14a40b720dFariborz Jahanian MLV_NotBlockQualified, 207ba8d2d684e74a20bef03828c21c991d222c7e9e5Fariborz Jahanian MLV_ReadonlyProperty, 20886f194083504938df72135b5b66bf0c5cafd9498Douglas Gregor MLV_NoSetterProperty, 2092514a309204341798f96912ce7a90841bea59727Fariborz Jahanian MLV_MemberFunction, 210e9ff443040cb571ae2c5c2626c4dc9a9a812d84aFariborz Jahanian MLV_SubObjCPropertySetting, 211e873fb74219f48407ae0b8fa083aa7f0b6ff1427Douglas Gregor MLV_ClassTemporary 2125f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer }; 21344e35f7b2b5da1eb338639e46bf0b5522e75c5f3Daniel Dunbar isModifiableLvalueResult isModifiableLvalue(ASTContext &Ctx, 21444e35f7b2b5da1eb338639e46bf0b5522e75c5f3Daniel Dunbar SourceLocation *Loc = 0) const; 2151eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2162111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl /// \brief The return type of classify(). Represents the C++0x expression 2172111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl /// taxonomy. 2182111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl class Classification { 2192111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl public: 2202111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl /// \brief The various classification results. Most of these mean prvalue. 2212111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl enum Kinds { 2222111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl CL_LValue, 2232111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl CL_XValue, 2242111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl CL_Function, // Functions cannot be lvalues in C. 2252111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl CL_Void, // Void cannot be an lvalue in C. 2262111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl CL_DuplicateVectorComponents, // A vector shuffle with dupes. 2272111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl CL_MemberFunction, // An expression referring to a member function 2282111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl CL_SubObjCPropertySetting, 2292111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl CL_ClassTemporary, // A prvalue of class type 2302111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl CL_PRValue // A prvalue for any other reason, of any other type 2312111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl }; 2322111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl /// \brief The results of modification testing. 2332111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl enum ModifiableType { 2342111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl CM_Untested, // testModifiable was false. 2352111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl CM_Modifiable, 2362111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl CM_RValue, // Not modifiable because it's an rvalue 2372111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl CM_Function, // Not modifiable because it's a function; C++ only 2382111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl CM_LValueCast, // Same as CM_RValue, but indicates GCC cast-as-lvalue ext 2392111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl CM_NotBlockQualified, // Not captured in the closure 2402111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl CM_NoSetterProperty,// Implicit assignment to ObjC property without setter 2412111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl CM_ConstQualified, 2422111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl CM_ArrayType, 2432111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl CM_IncompleteType 2442111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl }; 2452111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl 2462111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl private: 2472111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl friend class Expr; 2482111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl 2492111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl unsigned short Kind; 2502111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl unsigned short Modifiable; 2512111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl 2522111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl explicit Classification(Kinds k, ModifiableType m) 2532111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl : Kind(k), Modifiable(m) 2542111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl {} 2552111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl 2562111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl public: 2572111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl Classification() {} 2582111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl 2592111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl Kinds getKind() const { return static_cast<Kinds>(Kind); } 2602111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl ModifiableType getModifiable() const { 2612111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl assert(Modifiable != CM_Untested && "Did not test for modifiability."); 2622111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl return static_cast<ModifiableType>(Modifiable); 2632111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl } 2642111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl bool isLValue() const { return Kind == CL_LValue; } 2652111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl bool isXValue() const { return Kind == CL_XValue; } 2662111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl bool isGLValue() const { return Kind <= CL_XValue; } 2672111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl bool isPRValue() const { return Kind >= CL_Function; } 2682111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl bool isRValue() const { return Kind >= CL_XValue; } 2692111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl bool isModifiable() const { return getModifiable() == CM_Modifiable; } 2702111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl }; 271369e51fa400aeb5835bb9af4634ea516c11429a7Sebastian Redl /// \brief Classify - Classify this expression according to the C++0x 2722111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl /// expression taxonomy. 2732111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl /// 2742111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl /// C++0x defines ([basic.lval]) a new taxonomy of expressions to replace the 2752111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl /// old lvalue vs rvalue. This function determines the type of expression this 2762111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl /// is. There are three expression types: 2772111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl /// - lvalues are classical lvalues as in C++03. 2782111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl /// - prvalues are equivalent to rvalues in C++03. 2792111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl /// - xvalues are expressions yielding unnamed rvalue references, e.g. a 2802111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl /// function returning an rvalue reference. 2812111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl /// lvalues and xvalues are collectively referred to as glvalues, while 2822111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl /// prvalues and xvalues together form rvalues. 2832111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl Classification Classify(ASTContext &Ctx) const { 2842111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl return ClassifyImpl(Ctx, 0); 2852111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl } 2862111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl 287369e51fa400aeb5835bb9af4634ea516c11429a7Sebastian Redl /// \brief ClassifyModifiable - Classify this expression according to the 2882111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl /// C++0x expression taxonomy, and see if it is valid on the left side 2892111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl /// of an assignment. 2902111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl /// 2912111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl /// This function extends classify in that it also tests whether the 2922111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl /// expression is modifiable (C99 6.3.2.1p1). 2932111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl /// \param Loc A source location that might be filled with a relevant location 2942111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl /// if the expression is not modifiable. 2952111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl Classification ClassifyModifiable(ASTContext &Ctx, SourceLocation &Loc) const{ 2962111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl return ClassifyImpl(Ctx, &Loc); 2972111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl } 2982111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl 299f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall /// getValueKindForType - Given a formal return or parameter type, 300f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall /// give its value kind. 301f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall static ExprValueKind getValueKindForType(QualType T) { 302f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall if (const ReferenceType *RT = T->getAs<ReferenceType>()) 3030943168ac126b8047f30f6bd215fbe7db14d61baJohn McCall return (isa<LValueReferenceType>(RT) 3040943168ac126b8047f30f6bd215fbe7db14d61baJohn McCall ? VK_LValue 3050943168ac126b8047f30f6bd215fbe7db14d61baJohn McCall : (RT->getPointeeType()->isFunctionType() 3060943168ac126b8047f30f6bd215fbe7db14d61baJohn McCall ? VK_LValue : VK_XValue)); 307f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall return VK_RValue; 308f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall } 309f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall 310f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall /// getValueKind - The value kind that this expression produces. 311f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall ExprValueKind getValueKind() const { 312f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall return static_cast<ExprValueKind>(ExprBits.ValueKind); 313f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall } 314f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall 315f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall /// getObjectKind - The object kind that this expression produces. 316f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall /// Object kinds are meaningful only for expressions that yield an 317f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall /// l-value or x-value. 318f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall ExprObjectKind getObjectKind() const { 319f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall return static_cast<ExprObjectKind>(ExprBits.ObjectKind); 320f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall } 321f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall 322f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall /// setValueKind - Set the value kind produced by this expression. 323f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall void setValueKind(ExprValueKind Cat) { ExprBits.ValueKind = Cat; } 324f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall 325f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall /// setObjectKind - Set the object kind produced by this expression. 326f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall void setObjectKind(ExprObjectKind Cat) { ExprBits.ObjectKind = Cat; } 327f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall 3282111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redlprivate: 3292111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl Classification ClassifyImpl(ASTContext &Ctx, SourceLocation *Loc) const; 3302111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl 3312111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redlpublic: 3322111c855343a0530e236bf0862358ec8d67b28f3Sebastian Redl 33333bbbc5ec8269bc2cde5b84f970fa49319a30267Douglas Gregor /// \brief If this expression refers to a bit-field, retrieve the 33433bbbc5ec8269bc2cde5b84f970fa49319a30267Douglas Gregor /// declaration of that bit-field. 33533bbbc5ec8269bc2cde5b84f970fa49319a30267Douglas Gregor FieldDecl *getBitField(); 3365f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 33738d068e8f13a119b89a3b8b0f79f35cab1ffd09aAnders Carlsson const FieldDecl *getBitField() const { 33838d068e8f13a119b89a3b8b0f79f35cab1ffd09aAnders Carlsson return const_cast<Expr*>(this)->getBitField(); 33938d068e8f13a119b89a3b8b0f79f35cab1ffd09aAnders Carlsson } 3401eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 341f6a1648197562e0b133440d612d9af297d0a86ccJohn McCall /// \brief If this expression is an l-value for an Objective C 342f6a1648197562e0b133440d612d9af297d0a86ccJohn McCall /// property, find the underlying property reference expression. 343f6a1648197562e0b133440d612d9af297d0a86ccJohn McCall const ObjCPropertyRefExpr *getObjCProperty() const; 344f6a1648197562e0b133440d612d9af297d0a86ccJohn McCall 345093802675b1548f2a5f44c29938d65cce00d58bbAnders Carlsson /// \brief Returns whether this expression refers to a vector element. 346093802675b1548f2a5f44c29938d65cce00d58bbAnders Carlsson bool refersToVectorElement() const; 347c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 3482b334bb3126a67895813e49e6228dad4aec0b4d6Chris Lattner /// isKnownToHaveBooleanValue - Return true if this is an integer expression 3492b334bb3126a67895813e49e6228dad4aec0b4d6Chris Lattner /// that is known to return 0 or 1. This happens for _Bool/bool expressions 3502b334bb3126a67895813e49e6228dad4aec0b4d6Chris Lattner /// but also int expressions which are produced by things like comparisons in 3512b334bb3126a67895813e49e6228dad4aec0b4d6Chris Lattner /// C. 3522b334bb3126a67895813e49e6228dad4aec0b4d6Chris Lattner bool isKnownToHaveBooleanValue() const; 353c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 3545f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// isIntegerConstantExpr - Return true if this expression is a valid integer 3555f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// constant expression, and, if so, return its value in Result. If not a 3565f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// valid i-c-e, return false and fill in Loc (if specified) with the location 3575f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// of the invalid expression. 358590b6646ef747d2f7b42e5f40487ff07642d7b6fChris Lattner bool isIntegerConstantExpr(llvm::APSInt &Result, ASTContext &Ctx, 359590b6646ef747d2f7b42e5f40487ff07642d7b6fChris Lattner SourceLocation *Loc = 0, 3605f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool isEvaluated = true) const; 361590b6646ef747d2f7b42e5f40487ff07642d7b6fChris Lattner bool isIntegerConstantExpr(ASTContext &Ctx, SourceLocation *Loc = 0) const { 3628070a8497c0fb3e6f70a557f788405d8945b1208Daniel Dunbar llvm::APSInt X; 363590b6646ef747d2f7b42e5f40487ff07642d7b6fChris Lattner return isIntegerConstantExpr(X, Ctx, Loc); 3645f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 365c9e8f606787b0bc0c3b08e566b87cc1751694168Eli Friedman /// isConstantInitializer - Returns true if this expression is a constant 366c9e8f606787b0bc0c3b08e566b87cc1751694168Eli Friedman /// initializer, which can be emitted at compile-time. 3674204f07fc8bffe6d320b2de95fea274ccf37a17bJohn McCall bool isConstantInitializer(ASTContext &Ctx, bool ForRef) const; 3681eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 36994deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson /// EvalResult is a struct with detailed info about an evaluated expression. 37094deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson struct EvalResult { 3712d6744ff04c1690a1485178d550d2fab84a0270bDaniel Dunbar /// Val - This is the value the expression can be folded to. 37294deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson APValue Val; 3731eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 37494deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson /// HasSideEffects - Whether the evaluated expression has side effects. 37594deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson /// For example, (f() && 0) can be folded, but it still has side effects. 37694deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson bool HasSideEffects; 3771eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 37894deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson /// Diag - If the expression is unfoldable, then Diag contains a note 37994deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson /// diagnostic indicating why it's not foldable. DiagLoc indicates a caret 38094deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson /// position for the error, and DiagExpr is the expression that caused 38194deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson /// the error. 38294deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson /// If the expression is foldable, but not an integer constant expression, 38394deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson /// Diag contains a note diagnostic that describes why it isn't an integer 38494deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson /// constant expression. If the expression *is* an integer constant 38594deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson /// expression, then Diag will be zero. 38694deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson unsigned Diag; 38794deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson const Expr *DiagExpr; 38894deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson SourceLocation DiagLoc; 3891eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 39094deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson EvalResult() : HasSideEffects(false), Diag(0), DiagExpr(0) {} 391e17a6436b429e4b18a5e157061fb13bbc677b3b0Abramo Bagnara 392e17a6436b429e4b18a5e157061fb13bbc677b3b0Abramo Bagnara // isGlobalLValue - Return true if the evaluated lvalue expression 393e17a6436b429e4b18a5e157061fb13bbc677b3b0Abramo Bagnara // is global. 394e17a6436b429e4b18a5e157061fb13bbc677b3b0Abramo Bagnara bool isGlobalLValue() const; 395e17a6436b429e4b18a5e157061fb13bbc677b3b0Abramo Bagnara // hasSideEffects - Return true if the evaluated expression has 396e17a6436b429e4b18a5e157061fb13bbc677b3b0Abramo Bagnara // side effects. 397e17a6436b429e4b18a5e157061fb13bbc677b3b0Abramo Bagnara bool hasSideEffects() const { 398e17a6436b429e4b18a5e157061fb13bbc677b3b0Abramo Bagnara return HasSideEffects; 399e17a6436b429e4b18a5e157061fb13bbc677b3b0Abramo Bagnara } 40094deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson }; 40194deaf675ae60e11c2d9475c6dbfd0c7123160f5Anders Carlsson 4026ee7aa154e8bbb21a21254293410b944f78b0bfeChris Lattner /// Evaluate - Return true if this is a constant which we can fold using 403019f4e858e78587f2241ff1a76c747d7bcd7578cChris Lattner /// any crazy technique (that has nothing to do with language standards) that 404019f4e858e78587f2241ff1a76c747d7bcd7578cChris Lattner /// we want to. If this function returns true, it returns the folded constant 405019f4e858e78587f2241ff1a76c747d7bcd7578cChris Lattner /// in Result. 4065b45d4ef1ea3f04ec863daf8aa29be6c6e021750Anders Carlsson bool Evaluate(EvalResult &Result, ASTContext &Ctx) const; 4075b45d4ef1ea3f04ec863daf8aa29be6c6e021750Anders Carlsson 408cd7a445c6b46c5585580dfb652300c8483c0cb6bJohn McCall /// EvaluateAsBooleanCondition - Return true if this is a constant 409cd7a445c6b46c5585580dfb652300c8483c0cb6bJohn McCall /// which we we can fold and convert to a boolean condition using 410cd7a445c6b46c5585580dfb652300c8483c0cb6bJohn McCall /// any crazy technique that we want to. 411cd7a445c6b46c5585580dfb652300c8483c0cb6bJohn McCall bool EvaluateAsBooleanCondition(bool &Result, ASTContext &Ctx) const; 412cd7a445c6b46c5585580dfb652300c8483c0cb6bJohn McCall 4136ee7aa154e8bbb21a21254293410b944f78b0bfeChris Lattner /// isEvaluatable - Call Evaluate to see if this expression can be constant 41445b6b9d080ac56917337d73d8f1cd6374b27b05dChris Lattner /// folded, but discard the result. 41545b6b9d080ac56917337d73d8f1cd6374b27b05dChris Lattner bool isEvaluatable(ASTContext &Ctx) const; 416c44eec6dd29ee9415cbd38a35deff4c8b67abb6aAnders Carlsson 4176ddf4784a22b994b954ed74c6061d4603d474639Fariborz Jahanian /// HasSideEffects - This routine returns true for all those expressions 418138d6a6890c171068ac60430431eaadb3fcef9abGabor Greif /// which must be evaluated each time and must not be optimized away 4196ddf4784a22b994b954ed74c6061d4603d474639Fariborz Jahanian /// or evaluated at compile time. Example is a function call, volatile 4206ddf4784a22b994b954ed74c6061d4603d474639Fariborz Jahanian /// variable read. 421393c247fe025ccb5f914e37e948192ea86faef8cFariborz Jahanian bool HasSideEffects(ASTContext &Ctx) const; 422c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 42351fe996231b1d7199f76e4005ff4c943d5deeecdAnders Carlsson /// EvaluateAsInt - Call Evaluate and return the folded integer. This 42451fe996231b1d7199f76e4005ff4c943d5deeecdAnders Carlsson /// must be called on an expression that constant folds to an integer. 42551fe996231b1d7199f76e4005ff4c943d5deeecdAnders Carlsson llvm::APSInt EvaluateAsInt(ASTContext &Ctx) const; 42651fe996231b1d7199f76e4005ff4c943d5deeecdAnders Carlsson 427b2f295c8050fb8c141bf2cf38eed0a56e99d0092Eli Friedman /// EvaluateAsLValue - Evaluate an expression to see if it's a lvalue 428b2f295c8050fb8c141bf2cf38eed0a56e99d0092Eli Friedman /// with link time known address. 4291b78276a75a5a0f496a82429c1ff9604d622a76dAnders Carlsson bool EvaluateAsLValue(EvalResult &Result, ASTContext &Ctx) const; 4301b78276a75a5a0f496a82429c1ff9604d622a76dAnders Carlsson 431e17a6436b429e4b18a5e157061fb13bbc677b3b0Abramo Bagnara /// EvaluateAsLValue - Evaluate an expression to see if it's a lvalue. 432e17a6436b429e4b18a5e157061fb13bbc677b3b0Abramo Bagnara bool EvaluateAsAnyLValue(EvalResult &Result, ASTContext &Ctx) const; 433e17a6436b429e4b18a5e157061fb13bbc677b3b0Abramo Bagnara 434ce94049b69f75b44c18584fe79cd238978b6b0d5Douglas Gregor /// \brief Enumeration used to describe how \c isNullPointerConstant() 435ce94049b69f75b44c18584fe79cd238978b6b0d5Douglas Gregor /// should cope with value-dependent expressions. 436ce94049b69f75b44c18584fe79cd238978b6b0d5Douglas Gregor enum NullPointerConstantValueDependence { 437ce94049b69f75b44c18584fe79cd238978b6b0d5Douglas Gregor /// \brief Specifies that the expression should never be value-dependent. 438ce94049b69f75b44c18584fe79cd238978b6b0d5Douglas Gregor NPC_NeverValueDependent = 0, 439c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 440ce94049b69f75b44c18584fe79cd238978b6b0d5Douglas Gregor /// \brief Specifies that a value-dependent expression of integral or 441ce94049b69f75b44c18584fe79cd238978b6b0d5Douglas Gregor /// dependent type should be considered a null pointer constant. 442ce94049b69f75b44c18584fe79cd238978b6b0d5Douglas Gregor NPC_ValueDependentIsNull, 443c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 444ce94049b69f75b44c18584fe79cd238978b6b0d5Douglas Gregor /// \brief Specifies that a value-dependent expression should be considered 445ce94049b69f75b44c18584fe79cd238978b6b0d5Douglas Gregor /// to never be a null pointer constant. 446ce94049b69f75b44c18584fe79cd238978b6b0d5Douglas Gregor NPC_ValueDependentIsNotNull 447ce94049b69f75b44c18584fe79cd238978b6b0d5Douglas Gregor }; 448c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 449efa9b3877ef298bcb792600ac33521827e1f7fafAnders Carlsson /// isNullPointerConstant - C99 6.3.2.3p3 - Return true if this is either an 450efa9b3877ef298bcb792600ac33521827e1f7fafAnders Carlsson /// integer constant expression with the value zero, or if this is one that is 451efa9b3877ef298bcb792600ac33521827e1f7fafAnders Carlsson /// cast to void*. 452ce94049b69f75b44c18584fe79cd238978b6b0d5Douglas Gregor bool isNullPointerConstant(ASTContext &Ctx, 453ce94049b69f75b44c18584fe79cd238978b6b0d5Douglas Gregor NullPointerConstantValueDependence NPC) const; 454efa9b3877ef298bcb792600ac33521827e1f7fafAnders Carlsson 45544baa8abba2a1552b6b50bf750a8750ab9da9f76Fariborz Jahanian /// isOBJCGCCandidate - Return true if this expression may be used in a read/ 4561eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /// write barrier. 457102e390bcb5a1fb1a8fdbc8505e6dfd905374bbdFariborz Jahanian bool isOBJCGCCandidate(ASTContext &Ctx) const; 4581eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 45911ab79030938209f50691acae0ddb65e72a58ca9Argyrios Kyrtzidis /// \brief Returns true if this expression is a bound member function. 46011ab79030938209f50691acae0ddb65e72a58ca9Argyrios Kyrtzidis bool isBoundMemberFunction(ASTContext &Ctx) const; 46111ab79030938209f50691acae0ddb65e72a58ca9Argyrios Kyrtzidis 462369e51fa400aeb5835bb9af4634ea516c11429a7Sebastian Redl /// \brief Result type of CanThrow(). 463369e51fa400aeb5835bb9af4634ea516c11429a7Sebastian Redl enum CanThrowResult { 464369e51fa400aeb5835bb9af4634ea516c11429a7Sebastian Redl CT_Cannot, 465369e51fa400aeb5835bb9af4634ea516c11429a7Sebastian Redl CT_Dependent, 466369e51fa400aeb5835bb9af4634ea516c11429a7Sebastian Redl CT_Can 467369e51fa400aeb5835bb9af4634ea516c11429a7Sebastian Redl }; 468369e51fa400aeb5835bb9af4634ea516c11429a7Sebastian Redl /// \brief Test if this expression, if evaluated, might throw, according to 469369e51fa400aeb5835bb9af4634ea516c11429a7Sebastian Redl /// the rules of C++ [expr.unary.noexcept]. 470369e51fa400aeb5835bb9af4634ea516c11429a7Sebastian Redl CanThrowResult CanThrow(ASTContext &C) const; 471369e51fa400aeb5835bb9af4634ea516c11429a7Sebastian Redl 4724e99a5fc3b203397a91136c6e695e405fb8fc606Ted Kremenek /// IgnoreParens - Ignore parentheses. If this Expr is a ParenExpr, return 4731eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /// its subexpression. If that subexpression is also a ParenExpr, 4744e99a5fc3b203397a91136c6e695e405fb8fc606Ted Kremenek /// then this method recursively returns its subexpression, and so forth. 4754e99a5fc3b203397a91136c6e695e405fb8fc606Ted Kremenek /// Otherwise, the method returns the current Expr. 4762b334bb3126a67895813e49e6228dad4aec0b4d6Chris Lattner Expr *IgnoreParens(); 47756f349400c5932a196509c0480ff6f99a9a0b48fChris Lattner 47856f349400c5932a196509c0480ff6f99a9a0b48fChris Lattner /// IgnoreParenCasts - Ignore parentheses and casts. Strip off any ParenExpr 47927c8dc06f65d7abcf6a7e7f64a7960c9a150ca01Douglas Gregor /// or CastExprs, returning their operand. 48056f349400c5932a196509c0480ff6f99a9a0b48fChris Lattner Expr *IgnoreParenCasts(); 4811eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4822fc46bf1a9bc31d50f82de37c70ea257d3cded27John McCall /// IgnoreParenImpCasts - Ignore parentheses and implicit casts. Strip off any 4832fc46bf1a9bc31d50f82de37c70ea257d3cded27John McCall /// ParenExpr or ImplicitCastExprs, returning their operand. 4842fc46bf1a9bc31d50f82de37c70ea257d3cded27John McCall Expr *IgnoreParenImpCasts(); 4852fc46bf1a9bc31d50f82de37c70ea257d3cded27John McCall 4864d3175c1e5a44251ea97b0c81e80f060629d9c08Ted Kremenek const Expr *IgnoreParenImpCasts() const { 4874d3175c1e5a44251ea97b0c81e80f060629d9c08Ted Kremenek return const_cast<Expr*>(this)->IgnoreParenImpCasts(); 4884d3175c1e5a44251ea97b0c81e80f060629d9c08Ted Kremenek } 489f6a1648197562e0b133440d612d9af297d0a86ccJohn McCall 490f6a1648197562e0b133440d612d9af297d0a86ccJohn McCall /// Ignore parentheses and lvalue casts. Strip off any ParenExpr and 491f6a1648197562e0b133440d612d9af297d0a86ccJohn McCall /// CastExprs that represent lvalue casts, returning their operand. 492f6a1648197562e0b133440d612d9af297d0a86ccJohn McCall Expr *IgnoreParenLValueCasts(); 493f6a1648197562e0b133440d612d9af297d0a86ccJohn McCall 494f6a1648197562e0b133440d612d9af297d0a86ccJohn McCall const Expr *IgnoreParenLValueCasts() const { 495f6a1648197562e0b133440d612d9af297d0a86ccJohn McCall return const_cast<Expr*>(this)->IgnoreParenLValueCasts(); 496f6a1648197562e0b133440d612d9af297d0a86ccJohn McCall } 4974d3175c1e5a44251ea97b0c81e80f060629d9c08Ted Kremenek 498ecdd84147c0765caa999ddc22dde25b42712bb4dChris Lattner /// IgnoreParenNoopCasts - Ignore parentheses and casts that do not change the 499ecdd84147c0765caa999ddc22dde25b42712bb4dChris Lattner /// value (including ptr->int casts of the same size). Strip off any 500ecdd84147c0765caa999ddc22dde25b42712bb4dChris Lattner /// ParenExpr or CastExprs, returning their operand. 501ecdd84147c0765caa999ddc22dde25b42712bb4dChris Lattner Expr *IgnoreParenNoopCasts(ASTContext &Ctx); 5021eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 5036eef519fc8a97bb7ca6066f23d35e10f06b2c1b5Douglas Gregor /// \brief Determine whether this expression is a default function argument. 5046eef519fc8a97bb7ca6066f23d35e10f06b2c1b5Douglas Gregor /// 5056eef519fc8a97bb7ca6066f23d35e10f06b2c1b5Douglas Gregor /// Default arguments are implicitly generated in the abstract syntax tree 506c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt /// by semantic analysis for function calls, object constructions, etc. in 5076eef519fc8a97bb7ca6066f23d35e10f06b2c1b5Douglas Gregor /// C++. Default arguments are represented by \c CXXDefaultArgExpr nodes; 5086eef519fc8a97bb7ca6066f23d35e10f06b2c1b5Douglas Gregor /// this routine also looks through any implicit casts to determine whether 5096eef519fc8a97bb7ca6066f23d35e10f06b2c1b5Douglas Gregor /// the expression is a default argument. 5106eef519fc8a97bb7ca6066f23d35e10f06b2c1b5Douglas Gregor bool isDefaultArgument() const; 511c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 512558d2abc7f9fd6801cc7677200992313ae90b5d8John McCall /// \brief Determine whether the result of this expression is a 513558d2abc7f9fd6801cc7677200992313ae90b5d8John McCall /// temporary object of the given class type. 514558d2abc7f9fd6801cc7677200992313ae90b5d8John McCall bool isTemporaryObject(ASTContext &Ctx, const CXXRecordDecl *TempTy) const; 5152f59979a7cc7929f53c9984423b0abeb83113442Douglas Gregor 5162b334bb3126a67895813e49e6228dad4aec0b4d6Chris Lattner const Expr *IgnoreParens() const { 5174e99a5fc3b203397a91136c6e695e405fb8fc606Ted Kremenek return const_cast<Expr*>(this)->IgnoreParens(); 5184e99a5fc3b203397a91136c6e695e405fb8fc606Ted Kremenek } 51956f349400c5932a196509c0480ff6f99a9a0b48fChris Lattner const Expr *IgnoreParenCasts() const { 52056f349400c5932a196509c0480ff6f99a9a0b48fChris Lattner return const_cast<Expr*>(this)->IgnoreParenCasts(); 52156f349400c5932a196509c0480ff6f99a9a0b48fChris Lattner } 522ecdd84147c0765caa999ddc22dde25b42712bb4dChris Lattner const Expr *IgnoreParenNoopCasts(ASTContext &Ctx) const { 523ecdd84147c0765caa999ddc22dde25b42712bb4dChris Lattner return const_cast<Expr*>(this)->IgnoreParenNoopCasts(Ctx); 524ecdd84147c0765caa999ddc22dde25b42712bb4dChris Lattner } 5251eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 526898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor static bool hasAnyTypeDependentArguments(Expr** Exprs, unsigned NumExprs); 527898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor static bool hasAnyValueDependentArguments(Expr** Exprs, unsigned NumExprs); 528898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor 5291eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 5305f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return T->getStmtClass() >= firstExprConstant && 5311eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump T->getStmtClass() <= lastExprConstant; 5325f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 5335f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const Expr *) { return true; } 5345f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 5355f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 5361eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 5375549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek//===----------------------------------------------------------------------===// 5385f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// Primary Expressions. 5395f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer//===----------------------------------------------------------------------===// 5405f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 541a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor/// \brief Represents the qualifier that may precede a C++ name, e.g., the 542a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor/// "std::" in "std::sort". 543a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregorstruct NameQualifier { 544a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// \brief The nested name specifier. 545a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor NestedNameSpecifier *NNS; 546c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 547a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// \brief The source range covered by the nested name specifier. 548a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor SourceRange Range; 549a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor}; 550a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor 551a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor/// \brief Represents an explicit template argument list in C++, e.g., 552a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor/// the "<int>" in "sort<int>". 553a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregorstruct ExplicitTemplateArgumentList { 554a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// \brief The source location of the left angle bracket ('<'); 555a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor SourceLocation LAngleLoc; 556c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 557a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// \brief The source location of the right angle bracket ('>'); 558a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor SourceLocation RAngleLoc; 559c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 560a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// \brief The number of template arguments in TemplateArgs. 561a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// The actual template arguments (if any) are stored after the 562a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// ExplicitTemplateArgumentList structure. 563a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor unsigned NumTemplateArgs; 564c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 565a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// \brief Retrieve the template arguments 566833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall TemplateArgumentLoc *getTemplateArgs() { 567833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall return reinterpret_cast<TemplateArgumentLoc *> (this + 1); 568a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor } 569c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 570a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// \brief Retrieve the template arguments 571833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall const TemplateArgumentLoc *getTemplateArgs() const { 572833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall return reinterpret_cast<const TemplateArgumentLoc *> (this + 1); 573a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor } 574d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall 575d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall void initializeFrom(const TemplateArgumentListInfo &List); 576bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor void initializeFrom(const TemplateArgumentListInfo &List, 577bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor bool &Dependent, bool &ContainsUnexpandedParameterPack); 578d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall void copyInto(TemplateArgumentListInfo &List) const; 5798dfbd8b252ba4e6cf4b7a3422f6ef0ca21312dfeArgyrios Kyrtzidis static std::size_t sizeFor(unsigned NumTemplateArgs); 580d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall static std::size_t sizeFor(const TemplateArgumentListInfo &List); 581a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor}; 582c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 5835f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// DeclRefExpr - [C99 6.5.1p2] - A reference to a declared variable, function, 5845f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// enum, etc. 5855f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass DeclRefExpr : public Expr { 586a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor enum { 587c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt // Flag on DecoratedD that specifies when this declaration reference 588a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor // expression has a C++ nested-name-specifier. 589a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor HasQualifierFlag = 0x01, 590c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt // Flag on DecoratedD that specifies when this declaration reference 591a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor // expression has an explicit C++ template argument list. 592a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor HasExplicitTemplateArgumentListFlag = 0x02 593a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor }; 594c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 595c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt // DecoratedD - The declaration that we are referencing, plus two bits to 596a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor // indicate whether (1) the declaration's name was explicitly qualified and 597c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt // (2) the declaration's name was followed by an explicit template 598a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor // argument list. 599dbd872f273a8dbf22e089b3def6c09f0a460965dJohn McCall llvm::PointerIntPair<ValueDecl *, 2> DecoratedD; 6002577743c5650c646fb705df01403707e94f2df04Abramo Bagnara 601a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor // Loc - The location of the declaration name itself. 6025f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation Loc; 6039e922b1663ecb95dc7eee03002fd66ed18fb3192Argyrios Kyrtzidis 6042577743c5650c646fb705df01403707e94f2df04Abramo Bagnara /// DNLoc - Provides source/type location info for the 6052577743c5650c646fb705df01403707e94f2df04Abramo Bagnara /// declaration name embedded in DecoratedD. 6062577743c5650c646fb705df01403707e94f2df04Abramo Bagnara DeclarationNameLoc DNLoc; 6072577743c5650c646fb705df01403707e94f2df04Abramo Bagnara 608a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// \brief Retrieve the qualifier that preceded the declaration name, if any. 609a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor NameQualifier *getNameQualifier() { 6102cf719c3c3d805f630dfc6b1255e52647820888eSebastian Redl if ((DecoratedD.getInt() & HasQualifierFlag) == 0) 611a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor return 0; 612c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 613a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor return reinterpret_cast<NameQualifier *> (this + 1); 614a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor } 615c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 616a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// \brief Retrieve the qualifier that preceded the member name, if any. 617a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor const NameQualifier *getNameQualifier() const { 618a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor return const_cast<DeclRefExpr *>(this)->getNameQualifier(); 619a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor } 620096832c5ed5b9106fa177ebc148489760c3bc496John McCall 621a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor DeclRefExpr(NestedNameSpecifier *Qualifier, SourceRange QualifierRange, 622dbd872f273a8dbf22e089b3def6c09f0a460965dJohn McCall ValueDecl *D, SourceLocation NameLoc, 623d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall const TemplateArgumentListInfo *TemplateArgs, 624f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall QualType T, ExprValueKind VK); 625663e380d7b2de2bbf20e886e05371195bea9adc4Argyrios Kyrtzidis 6262577743c5650c646fb705df01403707e94f2df04Abramo Bagnara DeclRefExpr(NestedNameSpecifier *Qualifier, SourceRange QualifierRange, 6272577743c5650c646fb705df01403707e94f2df04Abramo Bagnara ValueDecl *D, const DeclarationNameInfo &NameInfo, 6282577743c5650c646fb705df01403707e94f2df04Abramo Bagnara const TemplateArgumentListInfo *TemplateArgs, 629f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall QualType T, ExprValueKind VK); 6302577743c5650c646fb705df01403707e94f2df04Abramo Bagnara 631663e380d7b2de2bbf20e886e05371195bea9adc4Argyrios Kyrtzidis /// \brief Construct an empty declaration reference expression. 632663e380d7b2de2bbf20e886e05371195bea9adc4Argyrios Kyrtzidis explicit DeclRefExpr(EmptyShell Empty) 633663e380d7b2de2bbf20e886e05371195bea9adc4Argyrios Kyrtzidis : Expr(DeclRefExprClass, Empty) { } 634c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 6350da76df9218d7c27b471b0a4d83a5b29fe24e5b4Douglas Gregor /// \brief Computes the type- and value-dependence flags for this 6360da76df9218d7c27b471b0a4d83a5b29fe24e5b4Douglas Gregor /// declaration reference expression. 6370da76df9218d7c27b471b0a4d83a5b29fe24e5b4Douglas Gregor void computeDependence(); 6389e922b1663ecb95dc7eee03002fd66ed18fb3192Argyrios Kyrtzidis 6395f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 640f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall DeclRefExpr(ValueDecl *d, QualType t, ExprValueKind VK, SourceLocation l) : 641bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor Expr(DeclRefExprClass, t, VK, OK_Ordinary, false, false, false), 642f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall DecoratedD(d, 0), Loc(l) { 6430da76df9218d7c27b471b0a4d83a5b29fe24e5b4Douglas Gregor computeDependence(); 6440da76df9218d7c27b471b0a4d83a5b29fe24e5b4Douglas Gregor } 6451eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 646a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor static DeclRefExpr *Create(ASTContext &Context, 647a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor NestedNameSpecifier *Qualifier, 648a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor SourceRange QualifierRange, 649dbd872f273a8dbf22e089b3def6c09f0a460965dJohn McCall ValueDecl *D, 650a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor SourceLocation NameLoc, 651f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall QualType T, ExprValueKind VK, 6520da76df9218d7c27b471b0a4d83a5b29fe24e5b4Douglas Gregor const TemplateArgumentListInfo *TemplateArgs = 0); 653663e380d7b2de2bbf20e886e05371195bea9adc4Argyrios Kyrtzidis 6542577743c5650c646fb705df01403707e94f2df04Abramo Bagnara static DeclRefExpr *Create(ASTContext &Context, 6552577743c5650c646fb705df01403707e94f2df04Abramo Bagnara NestedNameSpecifier *Qualifier, 6562577743c5650c646fb705df01403707e94f2df04Abramo Bagnara SourceRange QualifierRange, 6572577743c5650c646fb705df01403707e94f2df04Abramo Bagnara ValueDecl *D, 6582577743c5650c646fb705df01403707e94f2df04Abramo Bagnara const DeclarationNameInfo &NameInfo, 659f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall QualType T, ExprValueKind VK, 6602577743c5650c646fb705df01403707e94f2df04Abramo Bagnara const TemplateArgumentListInfo *TemplateArgs = 0); 6612577743c5650c646fb705df01403707e94f2df04Abramo Bagnara 662663e380d7b2de2bbf20e886e05371195bea9adc4Argyrios Kyrtzidis /// \brief Construct an empty declaration reference expression. 663663e380d7b2de2bbf20e886e05371195bea9adc4Argyrios Kyrtzidis static DeclRefExpr *CreateEmpty(ASTContext &Context, 664663e380d7b2de2bbf20e886e05371195bea9adc4Argyrios Kyrtzidis bool HasQualifier, unsigned NumTemplateArgs); 665c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 666dbd872f273a8dbf22e089b3def6c09f0a460965dJohn McCall ValueDecl *getDecl() { return DecoratedD.getPointer(); } 667dbd872f273a8dbf22e089b3def6c09f0a460965dJohn McCall const ValueDecl *getDecl() const { return DecoratedD.getPointer(); } 668dbd872f273a8dbf22e089b3def6c09f0a460965dJohn McCall void setDecl(ValueDecl *NewD) { DecoratedD.setPointer(NewD); } 669904eed3f6148758d39a2d3c88f3133274460d645Douglas Gregor 6702577743c5650c646fb705df01403707e94f2df04Abramo Bagnara DeclarationNameInfo getNameInfo() const { 6712577743c5650c646fb705df01403707e94f2df04Abramo Bagnara return DeclarationNameInfo(getDecl()->getDeclName(), Loc, DNLoc); 6722577743c5650c646fb705df01403707e94f2df04Abramo Bagnara } 6732577743c5650c646fb705df01403707e94f2df04Abramo Bagnara 6749e922b1663ecb95dc7eee03002fd66ed18fb3192Argyrios Kyrtzidis SourceLocation getLocation() const { return Loc; } 6750b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor void setLocation(SourceLocation L) { Loc = L; } 676a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor virtual SourceRange getSourceRange() const; 6771eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 678a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// \brief Determine whether this declaration reference was preceded by a 679a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// C++ nested-name-specifier, e.g., \c N::foo. 680a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor bool hasQualifier() const { return DecoratedD.getInt() & HasQualifierFlag; } 681c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 682a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// \brief If the name was qualified, retrieves the source range of 683a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// the nested-name-specifier that precedes the name. Otherwise, 684a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// returns an empty source range. 685a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor SourceRange getQualifierRange() const { 686a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor if (!hasQualifier()) 687a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor return SourceRange(); 688c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 689a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor return getNameQualifier()->Range; 690a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor } 691c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 692c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt /// \brief If the name was qualified, retrieves the nested-name-specifier 693a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// that precedes the name. Otherwise, returns NULL. 694a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor NestedNameSpecifier *getQualifier() const { 695a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor if (!hasQualifier()) 696a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor return 0; 697c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 698a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor return getNameQualifier()->NNS; 699a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor } 700c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 701096832c5ed5b9106fa177ebc148489760c3bc496John McCall bool hasExplicitTemplateArgs() const { 702096832c5ed5b9106fa177ebc148489760c3bc496John McCall return (DecoratedD.getInt() & HasExplicitTemplateArgumentListFlag); 703096832c5ed5b9106fa177ebc148489760c3bc496John McCall } 704096832c5ed5b9106fa177ebc148489760c3bc496John McCall 705096832c5ed5b9106fa177ebc148489760c3bc496John McCall /// \brief Retrieve the explicit template argument list that followed the 706096832c5ed5b9106fa177ebc148489760c3bc496John McCall /// member template name. 707096832c5ed5b9106fa177ebc148489760c3bc496John McCall ExplicitTemplateArgumentList &getExplicitTemplateArgs() { 708096832c5ed5b9106fa177ebc148489760c3bc496John McCall assert(hasExplicitTemplateArgs()); 709096832c5ed5b9106fa177ebc148489760c3bc496John McCall 710096832c5ed5b9106fa177ebc148489760c3bc496John McCall if ((DecoratedD.getInt() & HasQualifierFlag) == 0) 711096832c5ed5b9106fa177ebc148489760c3bc496John McCall return *reinterpret_cast<ExplicitTemplateArgumentList *>(this + 1); 712096832c5ed5b9106fa177ebc148489760c3bc496John McCall 713096832c5ed5b9106fa177ebc148489760c3bc496John McCall return *reinterpret_cast<ExplicitTemplateArgumentList *>( 714096832c5ed5b9106fa177ebc148489760c3bc496John McCall getNameQualifier() + 1); 715096832c5ed5b9106fa177ebc148489760c3bc496John McCall } 716096832c5ed5b9106fa177ebc148489760c3bc496John McCall 717096832c5ed5b9106fa177ebc148489760c3bc496John McCall /// \brief Retrieve the explicit template argument list that followed the 718096832c5ed5b9106fa177ebc148489760c3bc496John McCall /// member template name. 719096832c5ed5b9106fa177ebc148489760c3bc496John McCall const ExplicitTemplateArgumentList &getExplicitTemplateArgs() const { 720096832c5ed5b9106fa177ebc148489760c3bc496John McCall return const_cast<DeclRefExpr *>(this)->getExplicitTemplateArgs(); 721a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor } 722d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall 723096832c5ed5b9106fa177ebc148489760c3bc496John McCall /// \brief Retrieves the optional explicit template arguments. 724096832c5ed5b9106fa177ebc148489760c3bc496John McCall /// This points to the same data as getExplicitTemplateArgs(), but 725096832c5ed5b9106fa177ebc148489760c3bc496John McCall /// returns null if there are no explicit template arguments. 726096832c5ed5b9106fa177ebc148489760c3bc496John McCall const ExplicitTemplateArgumentList *getExplicitTemplateArgsOpt() const { 727096832c5ed5b9106fa177ebc148489760c3bc496John McCall if (!hasExplicitTemplateArgs()) return 0; 728096832c5ed5b9106fa177ebc148489760c3bc496John McCall return &getExplicitTemplateArgs(); 729096832c5ed5b9106fa177ebc148489760c3bc496John McCall } 730096832c5ed5b9106fa177ebc148489760c3bc496John McCall 731d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall /// \brief Copies the template arguments (if present) into the given 732d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall /// structure. 733d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall void copyTemplateArgumentsInto(TemplateArgumentListInfo &List) const { 734096832c5ed5b9106fa177ebc148489760c3bc496John McCall if (hasExplicitTemplateArgs()) 735096832c5ed5b9106fa177ebc148489760c3bc496John McCall getExplicitTemplateArgs().copyInto(List); 736d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall } 737c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 738a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// \brief Retrieve the location of the left angle bracket following the 739a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// member name ('<'), if any. 740a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor SourceLocation getLAngleLoc() const { 741096832c5ed5b9106fa177ebc148489760c3bc496John McCall if (!hasExplicitTemplateArgs()) 742a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor return SourceLocation(); 743c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 744096832c5ed5b9106fa177ebc148489760c3bc496John McCall return getExplicitTemplateArgs().LAngleLoc; 745a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor } 746c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 747a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// \brief Retrieve the template arguments provided as part of this 748a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// template-id. 749833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall const TemplateArgumentLoc *getTemplateArgs() const { 750096832c5ed5b9106fa177ebc148489760c3bc496John McCall if (!hasExplicitTemplateArgs()) 751a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor return 0; 752c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 753096832c5ed5b9106fa177ebc148489760c3bc496John McCall return getExplicitTemplateArgs().getTemplateArgs(); 754a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor } 755c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 756a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// \brief Retrieve the number of template arguments provided as part of this 757a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// template-id. 758a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor unsigned getNumTemplateArgs() const { 759096832c5ed5b9106fa177ebc148489760c3bc496John McCall if (!hasExplicitTemplateArgs()) 760a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor return 0; 761c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 762096832c5ed5b9106fa177ebc148489760c3bc496John McCall return getExplicitTemplateArgs().NumTemplateArgs; 763a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor } 764c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 765a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// \brief Retrieve the location of the right angle bracket following the 766a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor /// template arguments ('>'). 767a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor SourceLocation getRAngleLoc() const { 768096832c5ed5b9106fa177ebc148489760c3bc496John McCall if (!hasExplicitTemplateArgs()) 769a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor return SourceLocation(); 770c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 771096832c5ed5b9106fa177ebc148489760c3bc496John McCall return getExplicitTemplateArgs().RAngleLoc; 772a2813cec2605ce7878d1b13471d685f689b251afDouglas Gregor } 773c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 7741eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 77599e9b4d172f6877e6ba5ebe75bb8238721f5e01cDouglas Gregor return T->getStmtClass() == DeclRefExprClass; 7765f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 7775f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const DeclRefExpr *) { return true; } 7781eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 77977ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek // Iterators 78077ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_begin(); 78177ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_end(); 782663e380d7b2de2bbf20e886e05371195bea9adc4Argyrios Kyrtzidis 78360adf4acf40b72227740bf966fb87eebddff3f37Sebastian Redl friend class ASTStmtReader; 7843397c5570369f19b2d6c52e898f708d75ceede1fSebastian Redl friend class ASTStmtWriter; 7855f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 7865f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 787d9f6910f4ef37c0e8eeee2a01287d9572c3176efChris Lattner/// PredefinedExpr - [C99 6.4.2.2] - A predefined identifier such as __func__. 788d9f6910f4ef37c0e8eeee2a01287d9572c3176efChris Lattnerclass PredefinedExpr : public Expr { 789227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlssonpublic: 790227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson enum IdentType { 791227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson Func, 792227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson Function, 793848fa64143fbe5ae62a601ad61277f741e54dfabAnders Carlsson PrettyFunction, 794848fa64143fbe5ae62a601ad61277f741e54dfabAnders Carlsson /// PrettyFunctionNoVirtual - The same as PrettyFunction, except that the 795848fa64143fbe5ae62a601ad61277f741e54dfabAnders Carlsson /// 'virtual' keyword is omitted for virtual member functions. 796848fa64143fbe5ae62a601ad61277f741e54dfabAnders Carlsson PrettyFunctionNoVirtual 797227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson }; 7981eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 799227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlssonprivate: 800227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson SourceLocation Loc; 801227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson IdentType Type; 802227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlssonpublic: 8031eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump PredefinedExpr(SourceLocation l, QualType type, IdentType IT) 804f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall : Expr(PredefinedExprClass, type, VK_LValue, OK_Ordinary, 805bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor type->isDependentType(), type->isDependentType(), 806bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor /*ContainsUnexpandedParameterPack=*/false), 807f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall Loc(l), Type(IT) {} 8081eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 80917fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor /// \brief Construct an empty predefined expression. 8101eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump explicit PredefinedExpr(EmptyShell Empty) 81117fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor : Expr(PredefinedExprClass, Empty) { } 81217fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor 813227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson IdentType getIdentType() const { return Type; } 81417fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor void setIdentType(IdentType IT) { Type = IT; } 81517fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor 81617fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor SourceLocation getLocation() const { return Loc; } 81717fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor void setLocation(SourceLocation L) { Loc = L; } 81817fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor 819848fa64143fbe5ae62a601ad61277f741e54dfabAnders Carlsson static std::string ComputeName(IdentType IT, const Decl *CurrentDecl); 8203a082d81006e7a2e01a6e431a22e21c78490ff8fAnders Carlsson 821227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson virtual SourceRange getSourceRange() const { return SourceRange(Loc); } 822227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson 8231eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 8241eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == PredefinedExprClass; 825227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson } 826d9f6910f4ef37c0e8eeee2a01287d9572c3176efChris Lattner static bool classof(const PredefinedExpr *) { return true; } 8271eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 82877ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek // Iterators 82977ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_begin(); 83077ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_end(); 831227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson}; 832227426661be33ff3e21f2b6b9f97971da2da044fAnders Carlsson 8339996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis/// \brief Used by IntegerLiteral/FloatingLiteral to store the numeric without 8349996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis/// leaking memory. 8359996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis/// 8369996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis/// For large floats/integers, APFloat/APInt will allocate memory from the heap 8379996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis/// to represent these numbers. Unfortunately, when we use a BumpPtrAllocator 8389996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis/// to allocate IntegerLiteral/FloatingLiteral nodes the memory associated with 8399996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis/// the APFloat/APInt values will never get freed. APNumericStorage uses 8409996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis/// ASTContext's allocator for memory allocation. 8419996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidisclass APNumericStorage { 8429996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis unsigned BitWidth; 8439996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis union { 8449996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis uint64_t VAL; ///< Used to store the <= 64 bits integer value. 8459996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis uint64_t *pVal; ///< Used to store the >64 bits integer value. 8469996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis }; 8479996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis 8489996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis bool hasAllocation() const { return llvm::APInt::getNumWords(BitWidth) > 1; } 8499996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis 8509996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis APNumericStorage(const APNumericStorage&); // do not implement 8519996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis APNumericStorage& operator=(const APNumericStorage&); // do not implement 8529996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis 8539996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidisprotected: 8549996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis APNumericStorage() : BitWidth(0), VAL(0) { } 8559996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis 8569996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis llvm::APInt getIntValue() const { 8579996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis unsigned NumWords = llvm::APInt::getNumWords(BitWidth); 8589996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis if (NumWords > 1) 8599996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis return llvm::APInt(BitWidth, NumWords, pVal); 8609996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis else 8619996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis return llvm::APInt(BitWidth, VAL); 8629996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis } 8639996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis void setIntValue(ASTContext &C, const llvm::APInt &Val); 8649996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis}; 8659996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis 8669996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidisclass APIntStorage : public APNumericStorage { 8679996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidispublic: 8689996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis llvm::APInt getValue() const { return getIntValue(); } 8699996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis void setValue(ASTContext &C, const llvm::APInt &Val) { setIntValue(C, Val); } 8709996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis}; 8719996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis 8729996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidisclass APFloatStorage : public APNumericStorage { 8739996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidispublic: 8749996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis llvm::APFloat getValue() const { return llvm::APFloat(getIntValue()); } 8759996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis void setValue(ASTContext &C, const llvm::APFloat &Val) { 8769996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis setIntValue(C, Val.bitcastToAPInt()); 8779996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis } 8789996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis}; 8799996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis 8805f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass IntegerLiteral : public Expr { 8819996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis APIntStorage Num; 8825f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation Loc; 8839996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis 8849996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis /// \brief Construct an empty integer literal. 8859996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis explicit IntegerLiteral(EmptyShell Empty) 8869996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis : Expr(IntegerLiteralClass, Empty) { } 8879996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis 8885f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 8891eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump // type should be IntTy, LongTy, LongLongTy, UnsignedIntTy, UnsignedLongTy, 8905f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // or UnsignedLongLongTy 8919996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis IntegerLiteral(ASTContext &C, const llvm::APInt &V, 8929996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis QualType type, SourceLocation l) 893bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor : Expr(IntegerLiteralClass, type, VK_RValue, OK_Ordinary, false, false, 894bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor false), 895f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall Loc(l) { 8965f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer assert(type->isIntegerType() && "Illegal type in IntegerLiteral"); 8979996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis setValue(C, V); 8985f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 899a135fb43eb94524a6529768596a4533eed9aa70dAnders Carlsson 9009996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis // type should be IntTy, LongTy, LongLongTy, UnsignedIntTy, UnsignedLongTy, 9019996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis // or UnsignedLongLongTy 9029996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis static IntegerLiteral *Create(ASTContext &C, const llvm::APInt &V, 9039996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis QualType type, SourceLocation l); 9049996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis static IntegerLiteral *Create(ASTContext &C, EmptyShell Empty); 9050b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor 9069996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis llvm::APInt getValue() const { return Num.getValue(); } 9075f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer virtual SourceRange getSourceRange() const { return SourceRange(Loc); } 9085f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 909313a81dd820c9b2c0203bdcd974c781a81e4f0cfDouglas Gregor /// \brief Retrieve the location of the literal. 910313a81dd820c9b2c0203bdcd974c781a81e4f0cfDouglas Gregor SourceLocation getLocation() const { return Loc; } 911313a81dd820c9b2c0203bdcd974c781a81e4f0cfDouglas Gregor 9129996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis void setValue(ASTContext &C, const llvm::APInt &Val) { Num.setValue(C, Val); } 9130b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor void setLocation(SourceLocation Location) { Loc = Location; } 9140b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor 9151eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 9161eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == IntegerLiteralClass; 9175f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 9185f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const IntegerLiteral *) { return true; } 9191eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 92077ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek // Iterators 92177ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_begin(); 92277ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_end(); 9235f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 9245f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 9255f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass CharacterLiteral : public Expr { 9265f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer unsigned Value; 9275f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation Loc; 928c250aae4f645833aed3a6321bc8598f7330dce8dChris Lattner bool IsWide; 9295f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 9305f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer // type should be IntTy 931c250aae4f645833aed3a6321bc8598f7330dce8dChris Lattner CharacterLiteral(unsigned value, bool iswide, QualType type, SourceLocation l) 932bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor : Expr(CharacterLiteralClass, type, VK_RValue, OK_Ordinary, false, false, 933bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor false), 934f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall Value(value), Loc(l), IsWide(iswide) { 9355f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 9360b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor 9370b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor /// \brief Construct an empty character literal. 9380b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor CharacterLiteral(EmptyShell Empty) : Expr(CharacterLiteralClass, Empty) { } 9390b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor 940018d8e0596dd57401eeddcf11ac84ff0a065fbbeChris Lattner SourceLocation getLocation() const { return Loc; } 941c250aae4f645833aed3a6321bc8598f7330dce8dChris Lattner bool isWide() const { return IsWide; } 9421eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 9435f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer virtual SourceRange getSourceRange() const { return SourceRange(Loc); } 9441eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 9455f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer unsigned getValue() const { return Value; } 9465f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 9470b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor void setLocation(SourceLocation Location) { Loc = Location; } 9480b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor void setWide(bool W) { IsWide = W; } 9490b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor void setValue(unsigned Val) { Value = Val; } 9500b7489194f9f89fac39d57211c1e7953ae50251fDouglas Gregor 9511eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 9521eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == CharacterLiteralClass; 9535f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 9545f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const CharacterLiteral *) { return true; } 95577ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek 95677ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek // Iterators 95777ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_begin(); 95877ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_end(); 9595f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 9605f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 9615f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass FloatingLiteral : public Expr { 9629996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis APFloatStorage Num; 963720c4ec57b6110873cd533ad434853a27e7c3f4aTed Kremenek bool IsExact : 1; 9645f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation Loc; 9659996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis 9669996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis FloatingLiteral(ASTContext &C, const llvm::APFloat &V, bool isexact, 967720c4ec57b6110873cd533ad434853a27e7c3f4aTed Kremenek QualType Type, SourceLocation L) 968bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor : Expr(FloatingLiteralClass, Type, VK_RValue, OK_Ordinary, false, false, 969bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor false), 9709996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis IsExact(isexact), Loc(L) { 9719996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis setValue(C, V); 9729996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis } 9735f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 97417fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor /// \brief Construct an empty floating-point literal. 9751eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump explicit FloatingLiteral(EmptyShell Empty) 9769996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis : Expr(FloatingLiteralClass, Empty), IsExact(false) { } 97717fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor 9789996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidispublic: 9799996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis static FloatingLiteral *Create(ASTContext &C, const llvm::APFloat &V, 9809996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis bool isexact, QualType Type, SourceLocation L); 9819996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis static FloatingLiteral *Create(ASTContext &C, EmptyShell Empty); 9829996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis 9839996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis llvm::APFloat getValue() const { return Num.getValue(); } 9849996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis void setValue(ASTContext &C, const llvm::APFloat &Val) { 9859996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis Num.setValue(C, Val); 9869996a7f06a3c5b4554692e7177930cf4e8ef09afArgyrios Kyrtzidis } 98717fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor 988720c4ec57b6110873cd533ad434853a27e7c3f4aTed Kremenek bool isExact() const { return IsExact; } 98917fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor void setExact(bool E) { IsExact = E; } 990c9bec4bfea9090a08dd83a7b213f0c8adf8d78ecChris Lattner 991da8249e57f3badecf925571881fe57243935c6c1Chris Lattner /// getValueAsApproximateDouble - This returns the value as an inaccurate 992da8249e57f3badecf925571881fe57243935c6c1Chris Lattner /// double. Note that this may cause loss of precision, but is useful for 993da8249e57f3badecf925571881fe57243935c6c1Chris Lattner /// debugging dumps, etc. 994da8249e57f3badecf925571881fe57243935c6c1Chris Lattner double getValueAsApproximateDouble() const; 9951eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 99617fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor SourceLocation getLocation() const { return Loc; } 99717fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor void setLocation(SourceLocation L) { Loc = L; } 99817fc223395d51be582fc666bb6ea21bd1dff26dcDouglas Gregor 9995f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer virtual SourceRange getSourceRange() const { return SourceRange(Loc); } 10005f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 10011eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 10021eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == FloatingLiteralClass; 10035f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 10045f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const FloatingLiteral *) { return true; } 10051eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 100677ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek // Iterators 100777ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_begin(); 100877ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_end(); 10095f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 10105f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 10115d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner/// ImaginaryLiteral - We support imaginary integer and floating point literals, 10125d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner/// like "1.0i". We represent these as a wrapper around FloatingLiteral and 10135d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner/// IntegerLiteral classes. Instances of this class always have a Complex type 10145d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner/// whose element type matches the subexpression. 10155d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner/// 10165d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattnerclass ImaginaryLiteral : public Expr { 10175549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Stmt *Val; 10185d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattnerpublic: 10195d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner ImaginaryLiteral(Expr *val, QualType Ty) 1020bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor : Expr(ImaginaryLiteralClass, Ty, VK_RValue, OK_Ordinary, false, false, 1021bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor false), 1022f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall Val(val) {} 10231eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1024cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor /// \brief Build an empty imaginary literal. 10251eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump explicit ImaginaryLiteral(EmptyShell Empty) 1026cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor : Expr(ImaginaryLiteralClass, Empty) { } 1027cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor 10285549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek const Expr *getSubExpr() const { return cast<Expr>(Val); } 10295549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getSubExpr() { return cast<Expr>(Val); } 1030cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor void setSubExpr(Expr *E) { Val = E; } 1031cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor 10325d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner virtual SourceRange getSourceRange() const { return Val->getSourceRange(); } 10331eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 10341eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == ImaginaryLiteralClass; 10355d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner } 10365d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner static bool classof(const ImaginaryLiteral *) { return true; } 10371eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 10385d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner // Iterators 10395d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner virtual child_iterator child_begin(); 10405d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner virtual child_iterator child_end(); 10415d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner}; 10425d66145eed1c319df5a69977cb8ff74f597ea544Chris Lattner 1043e6a82b2c29ad05534841e5f8fd033fb17b6f61e2Ted Kremenek/// StringLiteral - This represents a string literal expression, e.g. "foo" 1044e6a82b2c29ad05534841e5f8fd033fb17b6f61e2Ted Kremenek/// or L"bar" (wide strings). The actual string is returned by getStrData() 1045e6a82b2c29ad05534841e5f8fd033fb17b6f61e2Ted Kremenek/// is NOT null-terminated, and the length of the string is determined by 1046a7ad98ff0919d6a24ea7c46634ea29bea551c1a0Chris Lattner/// calling getByteLength(). The C type for a string is always a 1047c4a09c189981b4561428e4b56fd250718e2717bbChris Lattner/// ConstantArrayType. In C++, the char type is const qualified, in C it is 1048c4a09c189981b4561428e4b56fd250718e2717bbChris Lattner/// not. 1049690398188ea5b428f06aa13c7d4ce6eb741ad4f9Chris Lattner/// 1050690398188ea5b428f06aa13c7d4ce6eb741ad4f9Chris Lattner/// Note that strings in C can be formed by concatenation of multiple string 10518bea7c0ee44c71c817de7dc2be932b73bec90c9fChris Lattner/// literal pptokens in translation phase #6. This keeps track of the locations 1052690398188ea5b428f06aa13c7d4ce6eb741ad4f9Chris Lattner/// of each of these pieces. 1053c4a09c189981b4561428e4b56fd250718e2717bbChris Lattner/// 1054c4a09c189981b4561428e4b56fd250718e2717bbChris Lattner/// Strings in C can also be truncated and extended by assigning into arrays, 1055c4a09c189981b4561428e4b56fd250718e2717bbChris Lattner/// e.g. with constructs like: 1056c4a09c189981b4561428e4b56fd250718e2717bbChris Lattner/// char X[2] = "foobar"; 1057c4a09c189981b4561428e4b56fd250718e2717bbChris Lattner/// In this case, getByteLength() will return 6, but the string literal will 1058c4a09c189981b4561428e4b56fd250718e2717bbChris Lattner/// have type "char[2]". 10595f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass StringLiteral : public Expr { 10605f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer const char *StrData; 10615f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer unsigned ByteLength; 10625f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool IsWide; 1063726e168dc09fb23f53c7b004f8e919421ee91806Chris Lattner unsigned NumConcatenated; 1064726e168dc09fb23f53c7b004f8e919421ee91806Chris Lattner SourceLocation TokLocs[1]; 10652085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner 1066f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall StringLiteral(QualType Ty) : 1067bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor Expr(StringLiteralClass, Ty, VK_LValue, OK_Ordinary, false, false, false) {} 10681eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 10695f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 10702085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner /// This is the "fully general" constructor that allows representation of 10712085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner /// strings formed from multiple concatenated tokens. 10722085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner static StringLiteral *Create(ASTContext &C, const char *StrData, 10732085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner unsigned ByteLength, bool Wide, QualType Ty, 1074a135fb43eb94524a6529768596a4533eed9aa70dAnders Carlsson const SourceLocation *Loc, unsigned NumStrs); 10752085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner 10762085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner /// Simple constructor for string literals made from one token. 10771eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static StringLiteral *Create(ASTContext &C, const char *StrData, 10782085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner unsigned ByteLength, 10792085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner bool Wide, QualType Ty, SourceLocation Loc) { 10802085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner return Create(C, StrData, ByteLength, Wide, Ty, &Loc, 1); 10812085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner } 1082a135fb43eb94524a6529768596a4533eed9aa70dAnders Carlsson 1083673ecd6a4a9f7c12fb6f76f84f654dbdcdc89e76Douglas Gregor /// \brief Construct an empty string literal. 1084673ecd6a4a9f7c12fb6f76f84f654dbdcdc89e76Douglas Gregor static StringLiteral *CreateEmpty(ASTContext &C, unsigned NumStrs); 1085673ecd6a4a9f7c12fb6f76f84f654dbdcdc89e76Douglas Gregor 1086b648023da23e8b227cdda57a241db4c6f368726bDaniel Dunbar llvm::StringRef getString() const { 1087b648023da23e8b227cdda57a241db4c6f368726bDaniel Dunbar return llvm::StringRef(StrData, ByteLength); 1088b648023da23e8b227cdda57a241db4c6f368726bDaniel Dunbar } 10892f4eaef37476ae6891ede8ba215d0f6fd093629bBenjamin Kramer 10905f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer unsigned getByteLength() const { return ByteLength; } 1091673ecd6a4a9f7c12fb6f76f84f654dbdcdc89e76Douglas Gregor 1092673ecd6a4a9f7c12fb6f76f84f654dbdcdc89e76Douglas Gregor /// \brief Sets the string data to the given string data. 1093b648023da23e8b227cdda57a241db4c6f368726bDaniel Dunbar void setString(ASTContext &C, llvm::StringRef Str); 1094673ecd6a4a9f7c12fb6f76f84f654dbdcdc89e76Douglas Gregor 10955f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool isWide() const { return IsWide; } 1096673ecd6a4a9f7c12fb6f76f84f654dbdcdc89e76Douglas Gregor void setWide(bool W) { IsWide = W; } 1097673ecd6a4a9f7c12fb6f76f84f654dbdcdc89e76Douglas Gregor 10988d4141f83d9de379547cf05bd75d4c6cf894b189Steve Naroff bool containsNonAsciiOrNull() const { 1099b648023da23e8b227cdda57a241db4c6f368726bDaniel Dunbar llvm::StringRef Str = getString(); 1100b648023da23e8b227cdda57a241db4c6f368726bDaniel Dunbar for (unsigned i = 0, e = Str.size(); i != e; ++i) 1101b648023da23e8b227cdda57a241db4c6f368726bDaniel Dunbar if (!isascii(Str[i]) || !Str[i]) 110233fdb738a6c125f4c788733897021b7c1a062b0cSteve Naroff return true; 110333fdb738a6c125f4c788733897021b7c1a062b0cSteve Naroff return false; 110433fdb738a6c125f4c788733897021b7c1a062b0cSteve Naroff } 1105726e168dc09fb23f53c7b004f8e919421ee91806Chris Lattner /// getNumConcatenated - Get the number of string literal tokens that were 1106726e168dc09fb23f53c7b004f8e919421ee91806Chris Lattner /// concatenated in translation phase #6 to form this string literal. 1107726e168dc09fb23f53c7b004f8e919421ee91806Chris Lattner unsigned getNumConcatenated() const { return NumConcatenated; } 11081eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1109726e168dc09fb23f53c7b004f8e919421ee91806Chris Lattner SourceLocation getStrTokenLoc(unsigned TokNum) const { 1110726e168dc09fb23f53c7b004f8e919421ee91806Chris Lattner assert(TokNum < NumConcatenated && "Invalid tok number"); 1111726e168dc09fb23f53c7b004f8e919421ee91806Chris Lattner return TokLocs[TokNum]; 1112726e168dc09fb23f53c7b004f8e919421ee91806Chris Lattner } 11131eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump void setStrTokenLoc(unsigned TokNum, SourceLocation L) { 1114673ecd6a4a9f7c12fb6f76f84f654dbdcdc89e76Douglas Gregor assert(TokNum < NumConcatenated && "Invalid tok number"); 1115673ecd6a4a9f7c12fb6f76f84f654dbdcdc89e76Douglas Gregor TokLocs[TokNum] = L; 1116673ecd6a4a9f7c12fb6f76f84f654dbdcdc89e76Douglas Gregor } 111708f92e3a5dead1f1ee656678a7f06e43279d6e50Chris Lattner 111808f92e3a5dead1f1ee656678a7f06e43279d6e50Chris Lattner /// getLocationOfByte - Return a source location that points to the specified 111908f92e3a5dead1f1ee656678a7f06e43279d6e50Chris Lattner /// byte of this string literal. 112008f92e3a5dead1f1ee656678a7f06e43279d6e50Chris Lattner /// 112108f92e3a5dead1f1ee656678a7f06e43279d6e50Chris Lattner /// Strings are amazingly complex. They can be formed from multiple tokens 112208f92e3a5dead1f1ee656678a7f06e43279d6e50Chris Lattner /// and can have escape sequences in them in addition to the usual trigraph 112308f92e3a5dead1f1ee656678a7f06e43279d6e50Chris Lattner /// and escaped newline business. This routine handles this complexity. 112408f92e3a5dead1f1ee656678a7f06e43279d6e50Chris Lattner /// 112508f92e3a5dead1f1ee656678a7f06e43279d6e50Chris Lattner SourceLocation getLocationOfByte(unsigned ByteNo, const SourceManager &SM, 112608f92e3a5dead1f1ee656678a7f06e43279d6e50Chris Lattner const LangOptions &Features, 112708f92e3a5dead1f1ee656678a7f06e43279d6e50Chris Lattner const TargetInfo &Target) const; 1128673ecd6a4a9f7c12fb6f76f84f654dbdcdc89e76Douglas Gregor 1129b137299ce5bb6c36fbba651858600857fda4dd50Chris Lattner typedef const SourceLocation *tokloc_iterator; 1130b137299ce5bb6c36fbba651858600857fda4dd50Chris Lattner tokloc_iterator tokloc_begin() const { return TokLocs; } 1131b137299ce5bb6c36fbba651858600857fda4dd50Chris Lattner tokloc_iterator tokloc_end() const { return TokLocs+NumConcatenated; } 11325f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 11331eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump virtual SourceRange getSourceRange() const { 11341eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return SourceRange(TokLocs[0], TokLocs[NumConcatenated-1]); 11355f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 11361eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 11371eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == StringLiteralClass; 11385f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 11395f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const StringLiteral *) { return true; } 11401eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 114177ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek // Iterators 114277ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_begin(); 114377ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_end(); 11445f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 11455f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 11465f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// ParenExpr - This represents a parethesized expression, e.g. "(1)". This 11475f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// AST node is only formed if full location information is requested. 11485f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass ParenExpr : public Expr { 11495f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation L, R; 11505549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Stmt *Val; 11515f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 11525f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer ParenExpr(SourceLocation l, SourceLocation r, Expr *val) 1153898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor : Expr(ParenExprClass, val->getType(), 1154f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall val->getValueKind(), val->getObjectKind(), 1155bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor val->isTypeDependent(), val->isValueDependent(), 1156bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor val->containsUnexpandedParameterPack()), 1157898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor L(l), R(r), Val(val) {} 11581eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1159c04db4feefa2b0dbbc6876cb4eeeee108aa6791dDouglas Gregor /// \brief Construct an empty parenthesized expression. 11601eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump explicit ParenExpr(EmptyShell Empty) 1161c04db4feefa2b0dbbc6876cb4eeeee108aa6791dDouglas Gregor : Expr(ParenExprClass, Empty) { } 1162c04db4feefa2b0dbbc6876cb4eeeee108aa6791dDouglas Gregor 11635549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek const Expr *getSubExpr() const { return cast<Expr>(Val); } 11645549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getSubExpr() { return cast<Expr>(Val); } 1165c04db4feefa2b0dbbc6876cb4eeeee108aa6791dDouglas Gregor void setSubExpr(Expr *E) { Val = E; } 1166c04db4feefa2b0dbbc6876cb4eeeee108aa6791dDouglas Gregor 1167866b5c03e3b9c01cf496ad97b85a05afc917345bTed Kremenek virtual SourceRange getSourceRange() const { return SourceRange(L, R); } 11685f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1169313a81dd820c9b2c0203bdcd974c781a81e4f0cfDouglas Gregor /// \brief Get the location of the left parentheses '('. 1170313a81dd820c9b2c0203bdcd974c781a81e4f0cfDouglas Gregor SourceLocation getLParen() const { return L; } 1171c04db4feefa2b0dbbc6876cb4eeeee108aa6791dDouglas Gregor void setLParen(SourceLocation Loc) { L = Loc; } 1172313a81dd820c9b2c0203bdcd974c781a81e4f0cfDouglas Gregor 1173313a81dd820c9b2c0203bdcd974c781a81e4f0cfDouglas Gregor /// \brief Get the location of the right parentheses ')'. 1174313a81dd820c9b2c0203bdcd974c781a81e4f0cfDouglas Gregor SourceLocation getRParen() const { return R; } 1175c04db4feefa2b0dbbc6876cb4eeeee108aa6791dDouglas Gregor void setRParen(SourceLocation Loc) { R = Loc; } 1176313a81dd820c9b2c0203bdcd974c781a81e4f0cfDouglas Gregor 11771eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 11781eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == ParenExprClass; 11795f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 11805f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const ParenExpr *) { return true; } 11811eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 118277ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek // Iterators 118377ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_begin(); 118477ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_end(); 11855f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 11865f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 11875f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 11880518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl/// UnaryOperator - This represents the unary-expression's (except sizeof and 11890518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl/// alignof), the postinc/postdec operators from postfix-expression, and various 11905f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// extensions. 1191dbb36971c68ea944ac4b1fbe2d97fe7cca3b20acChris Lattner/// 1192dbb36971c68ea944ac4b1fbe2d97fe7cca3b20acChris Lattner/// Notes on various nodes: 1193dbb36971c68ea944ac4b1fbe2d97fe7cca3b20acChris Lattner/// 1194dbb36971c68ea944ac4b1fbe2d97fe7cca3b20acChris Lattner/// Real/Imag - These return the real/imag part of a complex operand. If 1195dbb36971c68ea944ac4b1fbe2d97fe7cca3b20acChris Lattner/// applied to a non-complex value, the former returns its operand and the 1196dbb36971c68ea944ac4b1fbe2d97fe7cca3b20acChris Lattner/// later returns zero in the type of the operand. 1197dbb36971c68ea944ac4b1fbe2d97fe7cca3b20acChris Lattner/// 11985f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass UnaryOperator : public Expr { 11995f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 12005baba9d98364a3525d6afa15a04cdad82fd6dd30John McCall typedef UnaryOperatorKind Opcode; 12015baba9d98364a3525d6afa15a04cdad82fd6dd30John McCall 12025f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerprivate: 12030799c53fc2bb7acf937c8a8e165033dba1a5aba3John McCall unsigned Opc : 5; 12045f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation Loc; 12050799c53fc2bb7acf937c8a8e165033dba1a5aba3John McCall Stmt *Val; 12061eb4433ac451dc16f4133a88af2d002ac26c58efMike Stumppublic: 12075f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1208f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall UnaryOperator(Expr *input, Opcode opc, QualType type, 1209f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall ExprValueKind VK, ExprObjectKind OK, SourceLocation l) 1210f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall : Expr(UnaryOperatorClass, type, VK, OK, 1211de7e66256b1bdfcf6526994825a8c8fced52a31cEli Friedman input->isTypeDependent() || type->isDependentType(), 1212bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor input->isValueDependent(), 1213bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor input->containsUnexpandedParameterPack()), 12140799c53fc2bb7acf937c8a8e165033dba1a5aba3John McCall Opc(opc), Loc(l), Val(input) {} 12155f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 12160b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor /// \brief Build an empty unary operator. 12171eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump explicit UnaryOperator(EmptyShell Empty) 12182de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall : Expr(UnaryOperatorClass, Empty), Opc(UO_AddrOf) { } 12190b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor 12200799c53fc2bb7acf937c8a8e165033dba1a5aba3John McCall Opcode getOpcode() const { return static_cast<Opcode>(Opc); } 12210b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor void setOpcode(Opcode O) { Opc = O; } 12220b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor 12235549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getSubExpr() const { return cast<Expr>(Val); } 12240b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor void setSubExpr(Expr *E) { Val = E; } 12250b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor 12265f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// getOperatorLoc - Return the location of the operator. 12275f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation getOperatorLoc() const { return Loc; } 12280b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor void setOperatorLoc(SourceLocation L) { Loc = L; } 12290b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor 12305f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// isPostfix - Return true if this is a postfix operation, like x++. 12312085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner static bool isPostfix(Opcode Op) { 12322de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall return Op == UO_PostInc || Op == UO_PostDec; 12332085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner } 12345f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1235cc7bd10c0de9449b795bda3c5dcc6d83cc48436bZhanyong Wan /// isPrefix - Return true if this is a prefix operation, like --x. 12362085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner static bool isPrefix(Opcode Op) { 12372de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall return Op == UO_PreInc || Op == UO_PreDec; 12382085fd6cd22ec5c268175251db10d7c60caf7aaaChris Lattner } 12395a56ac30d04e8f0431a08980885662a47a6308aaTed Kremenek 12400799c53fc2bb7acf937c8a8e165033dba1a5aba3John McCall bool isPrefix() const { return isPrefix(getOpcode()); } 12410799c53fc2bb7acf937c8a8e165033dba1a5aba3John McCall bool isPostfix() const { return isPostfix(getOpcode()); } 12422de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall bool isIncrementOp() const { 1243993cdca0fed7deb646e4654dfb2607227a497faaBenjamin Kramer return Opc == UO_PreInc || Opc == UO_PostInc; 12442de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall } 12452de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall bool isIncrementDecrementOp() const { 1246993cdca0fed7deb646e4654dfb2607227a497faaBenjamin Kramer return Opc <= UO_PreDec; 12472de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall } 12482de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall static bool isArithmeticOp(Opcode Op) { 12492de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall return Op >= UO_Plus && Op <= UO_LNot; 12502de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall } 12510799c53fc2bb7acf937c8a8e165033dba1a5aba3John McCall bool isArithmeticOp() const { return isArithmeticOp(getOpcode()); } 12521eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 12535f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// getOpcodeStr - Turn an Opcode enum value into the punctuation char it 12545f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// corresponds to, e.g. "sizeof" or "[pre]++" 12555f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static const char *getOpcodeStr(Opcode Op); 12565f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1257bc736fceca6f0bca31d16003a7587857190408fbDouglas Gregor /// \brief Retrieve the unary opcode that corresponds to the given 1258bc736fceca6f0bca31d16003a7587857190408fbDouglas Gregor /// overloaded operator. 1259bc736fceca6f0bca31d16003a7587857190408fbDouglas Gregor static Opcode getOverloadedOpcode(OverloadedOperatorKind OO, bool Postfix); 1260bc736fceca6f0bca31d16003a7587857190408fbDouglas Gregor 1261bc736fceca6f0bca31d16003a7587857190408fbDouglas Gregor /// \brief Retrieve the overloaded operator kind that corresponds to 1262bc736fceca6f0bca31d16003a7587857190408fbDouglas Gregor /// the given unary opcode. 1263bc736fceca6f0bca31d16003a7587857190408fbDouglas Gregor static OverloadedOperatorKind getOverloadedOperator(Opcode Opc); 1264bc736fceca6f0bca31d16003a7587857190408fbDouglas Gregor 12655f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer virtual SourceRange getSourceRange() const { 12665f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer if (isPostfix()) 12675f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return SourceRange(Val->getLocStart(), Loc); 12685f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer else 12695f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return SourceRange(Loc, Val->getLocEnd()); 12705f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 12715f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer virtual SourceLocation getExprLoc() const { return Loc; } 12721eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 12731eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 12741eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == UnaryOperatorClass; 12755f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 12765f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const UnaryOperator *) { return true; } 12771eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 127877ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek // Iterators 127977ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_begin(); 128077ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_end(); 12815f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 12825f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 12838ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor/// OffsetOfExpr - [C99 7.17] - This represents an expression of the form 12848ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor/// offsetof(record-type, member-designator). For example, given: 12858ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor/// @code 12868ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor/// struct S { 12878ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor/// float f; 1288c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt/// double d; 12898ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor/// }; 12908ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor/// struct T { 12918ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor/// int i; 12928ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor/// struct S s[10]; 12938ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor/// }; 12948ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor/// @endcode 1295c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt/// we can represent and evaluate the expression @c offsetof(struct T, s[2].d). 12968ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor 12978ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregorclass OffsetOfExpr : public Expr { 12988ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregorpublic: 12998ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor // __builtin_offsetof(type, identifier(.identifier|[expr])*) 13008ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor class OffsetOfNode { 13018ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor public: 13028ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// \brief The kind of offsetof node we have. 13038ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor enum Kind { 1304cc8a5d5f90bbbbcb46f342117b851b7e07ec34f1Douglas Gregor /// \brief An index into an array. 13058ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor Array = 0x00, 1306cc8a5d5f90bbbbcb46f342117b851b7e07ec34f1Douglas Gregor /// \brief A field. 13078ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor Field = 0x01, 1308cc8a5d5f90bbbbcb46f342117b851b7e07ec34f1Douglas Gregor /// \brief A field in a dependent type, known only by its name. 1309cc8a5d5f90bbbbcb46f342117b851b7e07ec34f1Douglas Gregor Identifier = 0x02, 1310cc8a5d5f90bbbbcb46f342117b851b7e07ec34f1Douglas Gregor /// \brief An implicit indirection through a C++ base class, when the 1311cc8a5d5f90bbbbcb46f342117b851b7e07ec34f1Douglas Gregor /// field found is in a base class. 1312cc8a5d5f90bbbbcb46f342117b851b7e07ec34f1Douglas Gregor Base = 0x03 13138ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor }; 13148ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor 13158ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor private: 13168ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor enum { MaskBits = 2, Mask = 0x03 }; 1317c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 13188ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// \brief The source range that covers this part of the designator. 13198ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor SourceRange Range; 1320c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 13218ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// \brief The data describing the designator, which comes in three 13228ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// different forms, depending on the lower two bits. 1323c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt /// - An unsigned index into the array of Expr*'s stored after this node 13248ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// in memory, for [constant-expression] designators. 13258ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// - A FieldDecl*, for references to a known field. 13268ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// - An IdentifierInfo*, for references to a field with a given name 13278ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// when the class type is dependent. 1328c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt /// - A CXXBaseSpecifier*, for references that look at a field in a 1329cc8a5d5f90bbbbcb46f342117b851b7e07ec34f1Douglas Gregor /// base class. 13308ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor uintptr_t Data; 1331c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 13328ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor public: 13338ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// \brief Create an offsetof node that refers to an array element. 1334c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt OffsetOfNode(SourceLocation LBracketLoc, unsigned Index, 13358ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor SourceLocation RBracketLoc) 13368ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor : Range(LBracketLoc, RBracketLoc), Data((Index << 2) | Array) { } 1337c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 13388ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// \brief Create an offsetof node that refers to a field. 1339c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt OffsetOfNode(SourceLocation DotLoc, FieldDecl *Field, 13408ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor SourceLocation NameLoc) 1341c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt : Range(DotLoc.isValid()? DotLoc : NameLoc, NameLoc), 13428ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor Data(reinterpret_cast<uintptr_t>(Field) | OffsetOfNode::Field) { } 1343c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 13448ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// \brief Create an offsetof node that refers to an identifier. 13458ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor OffsetOfNode(SourceLocation DotLoc, IdentifierInfo *Name, 13468ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor SourceLocation NameLoc) 1347c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt : Range(DotLoc.isValid()? DotLoc : NameLoc, NameLoc), 13488ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor Data(reinterpret_cast<uintptr_t>(Name) | Identifier) { } 1349cc8a5d5f90bbbbcb46f342117b851b7e07ec34f1Douglas Gregor 1350cc8a5d5f90bbbbcb46f342117b851b7e07ec34f1Douglas Gregor /// \brief Create an offsetof node that refers into a C++ base class. 1351cc8a5d5f90bbbbcb46f342117b851b7e07ec34f1Douglas Gregor explicit OffsetOfNode(const CXXBaseSpecifier *Base) 1352cc8a5d5f90bbbbcb46f342117b851b7e07ec34f1Douglas Gregor : Range(), Data(reinterpret_cast<uintptr_t>(Base) | OffsetOfNode::Base) {} 1353c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 13548ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// \brief Determine what kind of offsetof node this is. 1355c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt Kind getKind() const { 13568ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor return static_cast<Kind>(Data & Mask); 13578ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor } 1358c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 13598ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// \brief For an array element node, returns the index into the array 13608ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// of expressions. 13618ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor unsigned getArrayExprIndex() const { 13628ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor assert(getKind() == Array); 13638ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor return Data >> 2; 13648ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor } 13658ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor 13668ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// \brief For a field offsetof node, returns the field. 13678ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor FieldDecl *getField() const { 13688ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor assert(getKind() == Field); 1369cc8a5d5f90bbbbcb46f342117b851b7e07ec34f1Douglas Gregor return reinterpret_cast<FieldDecl *>(Data & ~(uintptr_t)Mask); 13708ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor } 1371c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 13728ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// \brief For a field or identifier offsetof node, returns the name of 13738ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// the field. 13748ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor IdentifierInfo *getFieldName() const; 1375c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 1376cc8a5d5f90bbbbcb46f342117b851b7e07ec34f1Douglas Gregor /// \brief For a base class node, returns the base specifier. 1377cc8a5d5f90bbbbcb46f342117b851b7e07ec34f1Douglas Gregor CXXBaseSpecifier *getBase() const { 1378cc8a5d5f90bbbbcb46f342117b851b7e07ec34f1Douglas Gregor assert(getKind() == Base); 1379c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt return reinterpret_cast<CXXBaseSpecifier *>(Data & ~(uintptr_t)Mask); 1380cc8a5d5f90bbbbcb46f342117b851b7e07ec34f1Douglas Gregor } 1381c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 13828ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// \brief Retrieve the source range that covers this offsetof node. 13838ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// 13848ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// For an array element node, the source range contains the locations of 13858ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// the square brackets. For a field or identifier node, the source range 1386c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt /// contains the location of the period (if there is one) and the 13878ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// identifier. 13888ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor SourceRange getRange() const { return Range; } 13898ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor }; 13908ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor 13918ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregorprivate: 1392c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 13938ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor SourceLocation OperatorLoc, RParenLoc; 13948ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor // Base type; 13958ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor TypeSourceInfo *TSInfo; 13968ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor // Number of sub-components (i.e. instances of OffsetOfNode). 13978ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor unsigned NumComps; 13988ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor // Number of sub-expressions (i.e. array subscript expressions). 13998ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor unsigned NumExprs; 1400c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 1401c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt OffsetOfExpr(ASTContext &C, QualType type, 14028ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor SourceLocation OperatorLoc, TypeSourceInfo *tsi, 1403c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt OffsetOfNode* compsPtr, unsigned numComps, 14048ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor Expr** exprsPtr, unsigned numExprs, 14058ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor SourceLocation RParenLoc); 14068ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor 14078ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor explicit OffsetOfExpr(unsigned numComps, unsigned numExprs) 14088ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor : Expr(OffsetOfExprClass, EmptyShell()), 1409c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt TSInfo(0), NumComps(numComps), NumExprs(numExprs) {} 14108ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor 14118ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregorpublic: 1412c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 1413c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt static OffsetOfExpr *Create(ASTContext &C, QualType type, 1414c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt SourceLocation OperatorLoc, TypeSourceInfo *tsi, 1415c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt OffsetOfNode* compsPtr, unsigned numComps, 14168ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor Expr** exprsPtr, unsigned numExprs, 14178ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor SourceLocation RParenLoc); 14188ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor 1419c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt static OffsetOfExpr *CreateEmpty(ASTContext &C, 14208ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor unsigned NumComps, unsigned NumExprs); 14218ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor 14228ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// getOperatorLoc - Return the location of the operator. 14238ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor SourceLocation getOperatorLoc() const { return OperatorLoc; } 14248ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor void setOperatorLoc(SourceLocation L) { OperatorLoc = L; } 14258ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor 14268ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor /// \brief Return the location of the right parentheses. 14278ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor SourceLocation getRParenLoc() const { return RParenLoc; } 14288ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor void setRParenLoc(SourceLocation R) { RParenLoc = R; } 1429c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 14308ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor TypeSourceInfo *getTypeSourceInfo() const { 14318ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor return TSInfo; 14328ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor } 14338ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor void setTypeSourceInfo(TypeSourceInfo *tsi) { 14348ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor TSInfo = tsi; 14358ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor } 1436c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 14378ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor const OffsetOfNode &getComponent(unsigned Idx) { 14388ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor assert(Idx < NumComps && "Subscript out of range"); 14398ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor return reinterpret_cast<OffsetOfNode *> (this + 1)[Idx]; 14408ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor } 14418ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor 14428ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor void setComponent(unsigned Idx, OffsetOfNode ON) { 14438ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor assert(Idx < NumComps && "Subscript out of range"); 14448ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor reinterpret_cast<OffsetOfNode *> (this + 1)[Idx] = ON; 14458ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor } 1446c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 14478ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor unsigned getNumComponents() const { 14488ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor return NumComps; 14498ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor } 14508ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor 14518ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor Expr* getIndexExpr(unsigned Idx) { 14528ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor assert(Idx < NumExprs && "Subscript out of range"); 14538ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor return reinterpret_cast<Expr **>( 14548ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor reinterpret_cast<OffsetOfNode *>(this+1) + NumComps)[Idx]; 14558ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor } 14568ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor 14578ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor void setIndexExpr(unsigned Idx, Expr* E) { 14588ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor assert(Idx < NumComps && "Subscript out of range"); 14598ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor reinterpret_cast<Expr **>( 14608ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor reinterpret_cast<OffsetOfNode *>(this+1) + NumComps)[Idx] = E; 14618ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor } 1462c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 14638ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor unsigned getNumExpressions() const { 14648ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor return NumExprs; 14658ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor } 14668ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor 14678ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor virtual SourceRange getSourceRange() const { 14688ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor return SourceRange(OperatorLoc, RParenLoc); 14698ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor } 14708ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor 14718ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor static bool classof(const Stmt *T) { 14728ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor return T->getStmtClass() == OffsetOfExprClass; 14738ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor } 14748ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor 14758ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor static bool classof(const OffsetOfExpr *) { return true; } 14768ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor 14778ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor // Iterators 14788ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor virtual child_iterator child_begin(); 14798ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor virtual child_iterator child_end(); 14808ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor}; 14818ecdb65716cd7914ffb2eeee993fa9039fcd31e8Douglas Gregor 14820518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl/// SizeOfAlignOfExpr - [C99 6.5.3.4] - This is for sizeof/alignof, both of 14830518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl/// types and expressions. 14840518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redlclass SizeOfAlignOfExpr : public Expr { 14850518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl bool isSizeof : 1; // true if sizeof, false if alignof. 14860518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl bool isType : 1; // true if operand is a type, false if an expression 1487d457589fc69dc7a9c80cd74d317c0b81a35a27c9Sebastian Redl union { 1488a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall TypeSourceInfo *Ty; 1489d457589fc69dc7a9c80cd74d317c0b81a35a27c9Sebastian Redl Stmt *Ex; 1490d457589fc69dc7a9c80cd74d317c0b81a35a27c9Sebastian Redl } Argument; 14915f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation OpLoc, RParenLoc; 149242602bb40aefcc2751d4078ba88aacf4d965c9bdDouglas Gregor 14935f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 1494a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall SizeOfAlignOfExpr(bool issizeof, TypeSourceInfo *TInfo, 14950518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl QualType resultType, SourceLocation op, 14960518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl SourceLocation rp) : 1497f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall Expr(SizeOfAlignOfExprClass, resultType, VK_RValue, OK_Ordinary, 1498ba49817c5b9f502602672861cf369fd0e53966e8Douglas Gregor false, // Never type-dependent (C++ [temp.dep.expr]p3). 14992850784bda09416fc7e9d57f5baa36c9351c757cSebastian Redl // Value-dependent if the argument is type-dependent. 1500bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor TInfo->getType()->isDependentType(), 1501bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor TInfo->getType()->containsUnexpandedParameterPack()), 1502ba49817c5b9f502602672861cf369fd0e53966e8Douglas Gregor isSizeof(issizeof), isType(true), OpLoc(op), RParenLoc(rp) { 1503a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall Argument.Ty = TInfo; 1504ba49817c5b9f502602672861cf369fd0e53966e8Douglas Gregor } 1505ba49817c5b9f502602672861cf369fd0e53966e8Douglas Gregor 15061eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump SizeOfAlignOfExpr(bool issizeof, Expr *E, 1507ba49817c5b9f502602672861cf369fd0e53966e8Douglas Gregor QualType resultType, SourceLocation op, 1508ba49817c5b9f502602672861cf369fd0e53966e8Douglas Gregor SourceLocation rp) : 1509f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall Expr(SizeOfAlignOfExprClass, resultType, VK_RValue, OK_Ordinary, 1510ba49817c5b9f502602672861cf369fd0e53966e8Douglas Gregor false, // Never type-dependent (C++ [temp.dep.expr]p3). 1511ba49817c5b9f502602672861cf369fd0e53966e8Douglas Gregor // Value-dependent if the argument is type-dependent. 1512bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor E->isTypeDependent(), 1513bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor E->containsUnexpandedParameterPack()), 1514ba49817c5b9f502602672861cf369fd0e53966e8Douglas Gregor isSizeof(issizeof), isType(false), OpLoc(op), RParenLoc(rp) { 1515ba49817c5b9f502602672861cf369fd0e53966e8Douglas Gregor Argument.Ex = E; 1516d457589fc69dc7a9c80cd74d317c0b81a35a27c9Sebastian Redl } 15170518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl 15180b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor /// \brief Construct an empty sizeof/alignof expression. 15190b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor explicit SizeOfAlignOfExpr(EmptyShell Empty) 15200b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor : Expr(SizeOfAlignOfExprClass, Empty) { } 15210b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor 15225f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool isSizeOf() const { return isSizeof; } 15230b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor void setSizeof(bool S) { isSizeof = S; } 15240b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor 15250518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl bool isArgumentType() const { return isType; } 15260518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl QualType getArgumentType() const { 15275ab75172051a6d2ea71a80a79e81c65519fd3462John McCall return getArgumentTypeInfo()->getType(); 15285ab75172051a6d2ea71a80a79e81c65519fd3462John McCall } 1529a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall TypeSourceInfo *getArgumentTypeInfo() const { 15300518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl assert(isArgumentType() && "calling getArgumentType() when arg is expr"); 15315ab75172051a6d2ea71a80a79e81c65519fd3462John McCall return Argument.Ty; 15320518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl } 1533caae7b099a0324b7c15dc89a9b70969d5d7ce996Chris Lattner Expr *getArgumentExpr() { 15340518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl assert(!isArgumentType() && "calling getArgumentExpr() when arg is type"); 1535d457589fc69dc7a9c80cd74d317c0b81a35a27c9Sebastian Redl return static_cast<Expr*>(Argument.Ex); 15360518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl } 1537caae7b099a0324b7c15dc89a9b70969d5d7ce996Chris Lattner const Expr *getArgumentExpr() const { 1538caae7b099a0324b7c15dc89a9b70969d5d7ce996Chris Lattner return const_cast<SizeOfAlignOfExpr*>(this)->getArgumentExpr(); 1539caae7b099a0324b7c15dc89a9b70969d5d7ce996Chris Lattner } 15400b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor 15410b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor void setArgument(Expr *E) { Argument.Ex = E; isType = false; } 1542a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall void setArgument(TypeSourceInfo *TInfo) { 1543a93c934af4fbf97cbe8e649d82e68ccacfe57c95John McCall Argument.Ty = TInfo; 15441eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump isType = true; 15450b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor } 15460b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor 15470518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl /// Gets the argument type, or the type of the argument expression, whichever 15480518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl /// is appropriate. 15490518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl QualType getTypeOfArgument() const { 15500518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl return isArgumentType() ? getArgumentType() : getArgumentExpr()->getType(); 15510518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl } 15520518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl 155376e773a443be9f006610f46529e07d4c8d857680Chris Lattner SourceLocation getOperatorLoc() const { return OpLoc; } 15540b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor void setOperatorLoc(SourceLocation L) { OpLoc = L; } 15550b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor 15560b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor SourceLocation getRParenLoc() const { return RParenLoc; } 15570b0b77fa29c74c99a77548ed86ca8a04f7cf6b02Douglas Gregor void setRParenLoc(SourceLocation L) { RParenLoc = L; } 1558866b5c03e3b9c01cf496ad97b85a05afc917345bTed Kremenek 1559866b5c03e3b9c01cf496ad97b85a05afc917345bTed Kremenek virtual SourceRange getSourceRange() const { 1560866b5c03e3b9c01cf496ad97b85a05afc917345bTed Kremenek return SourceRange(OpLoc, RParenLoc); 1561866b5c03e3b9c01cf496ad97b85a05afc917345bTed Kremenek } 15625f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 15631eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 15641eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == SizeOfAlignOfExprClass; 15655f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 15660518999d3adcc289997bd974dce90cc97f5c1c44Sebastian Redl static bool classof(const SizeOfAlignOfExpr *) { return true; } 15671eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 156877ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek // Iterators 156977ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_begin(); 157077ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_end(); 15715f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 15725f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 15735f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer//===----------------------------------------------------------------------===// 15745f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer// Postfix Operators. 15755f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer//===----------------------------------------------------------------------===// 15765f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 15775f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// ArraySubscriptExpr - [C99 6.5.2.1] Array Subscripting. 15785f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass ArraySubscriptExpr : public Expr { 157977ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek enum { LHS, RHS, END_EXPR=2 }; 15801eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump Stmt* SubExprs[END_EXPR]; 15815f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation RBracketLoc; 15825f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 15832324512285caac0332bbbc6e4cab6245d2a370a1Ted Kremenek ArraySubscriptExpr(Expr *lhs, Expr *rhs, QualType t, 1584f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall ExprValueKind VK, ExprObjectKind OK, 158573d0d4fac161ed12926e010dcf8b448a8de6a2ecChris Lattner SourceLocation rbracketloc) 1586f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall : Expr(ArraySubscriptExprClass, t, VK, OK, 15872850784bda09416fc7e9d57f5baa36c9351c757cSebastian Redl lhs->isTypeDependent() || rhs->isTypeDependent(), 1588bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor lhs->isValueDependent() || rhs->isValueDependent(), 1589bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor (lhs->containsUnexpandedParameterPack() || 1590bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor rhs->containsUnexpandedParameterPack())), 15912850784bda09416fc7e9d57f5baa36c9351c757cSebastian Redl RBracketLoc(rbracketloc) { 159273d0d4fac161ed12926e010dcf8b448a8de6a2ecChris Lattner SubExprs[LHS] = lhs; 159373d0d4fac161ed12926e010dcf8b448a8de6a2ecChris Lattner SubExprs[RHS] = rhs; 159473d0d4fac161ed12926e010dcf8b448a8de6a2ecChris Lattner } 15951eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1596cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor /// \brief Create an empty array subscript expression. 1597cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor explicit ArraySubscriptExpr(EmptyShell Shell) 1598cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor : Expr(ArraySubscriptExprClass, Shell) { } 1599cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor 16002324512285caac0332bbbc6e4cab6245d2a370a1Ted Kremenek /// An array access can be written A[4] or 4[A] (both are equivalent). 16012324512285caac0332bbbc6e4cab6245d2a370a1Ted Kremenek /// - getBase() and getIdx() always present the normalized view: A[4]. 16022324512285caac0332bbbc6e4cab6245d2a370a1Ted Kremenek /// In this case getBase() returns "A" and getIdx() returns "4". 16032324512285caac0332bbbc6e4cab6245d2a370a1Ted Kremenek /// - getLHS() and getRHS() present the syntactic view. e.g. for 16042324512285caac0332bbbc6e4cab6245d2a370a1Ted Kremenek /// 4[A] getLHS() returns "4". 160533fd5c124aac15bab7cad95e4e0e7761356d2c06Christopher Lamb /// Note: Because vector element access is also written A[4] we must 160633fd5c124aac15bab7cad95e4e0e7761356d2c06Christopher Lamb /// predicate the format conversion in getBase and getIdx only on the 160733fd5c124aac15bab7cad95e4e0e7761356d2c06Christopher Lamb /// the type of the RHS, as it is possible for the LHS to be a vector of 160833fd5c124aac15bab7cad95e4e0e7761356d2c06Christopher Lamb /// integer type 16095549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getLHS() { return cast<Expr>(SubExprs[LHS]); } 16105549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek const Expr *getLHS() const { return cast<Expr>(SubExprs[LHS]); } 1611cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor void setLHS(Expr *E) { SubExprs[LHS] = E; } 1612cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor 16135549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getRHS() { return cast<Expr>(SubExprs[RHS]); } 16145549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek const Expr *getRHS() const { return cast<Expr>(SubExprs[RHS]); } 1615cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor void setRHS(Expr *E) { SubExprs[RHS] = E; } 16161eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 16171eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump Expr *getBase() { 16185549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek return cast<Expr>(getRHS()->getType()->isIntegerType() ? getLHS():getRHS()); 161977ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek } 16201eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 16211eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump const Expr *getBase() const { 16225549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek return cast<Expr>(getRHS()->getType()->isIntegerType() ? getLHS():getRHS()); 16232324512285caac0332bbbc6e4cab6245d2a370a1Ted Kremenek } 16241eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 16251eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump Expr *getIdx() { 16265549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek return cast<Expr>(getRHS()->getType()->isIntegerType() ? getRHS():getLHS()); 16272324512285caac0332bbbc6e4cab6245d2a370a1Ted Kremenek } 16281eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 162977ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek const Expr *getIdx() const { 16305549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek return cast<Expr>(getRHS()->getType()->isIntegerType() ? getRHS():getLHS()); 16311eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump } 16321eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 16331eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump virtual SourceRange getSourceRange() const { 163477ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek return SourceRange(getLHS()->getLocStart(), RBracketLoc); 16355f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 16361eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1637026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner SourceLocation getRBracketLoc() const { return RBracketLoc; } 1638cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor void setRBracketLoc(SourceLocation L) { RBracketLoc = L; } 1639cb2ca73c1d7e76cc1358ce51457d2d5837d84f9bDouglas Gregor 16405cd9d6daf3acd4cc87fecebd81d9495b9e4ba9cdChris Lattner virtual SourceLocation getExprLoc() const { return getBase()->getExprLoc(); } 16415f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 16421eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 16431eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == ArraySubscriptExprClass; 16445f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 16455f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const ArraySubscriptExpr *) { return true; } 16461eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 164777ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek // Iterators 164877ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_begin(); 164977ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_end(); 16505f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 16515f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 16525f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1653b4609806e9232593ece09ce08b630836e825865cDouglas Gregor/// CallExpr - Represents a function call (C99 6.5.2.2, C++ [expr.call]). 16541eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// CallExpr itself represents a normal function call, e.g., "f(x, 2)", 1655b4609806e9232593ece09ce08b630836e825865cDouglas Gregor/// while its subclasses may represent alternative syntax that (semantically) 16561eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// results in a function call. For example, CXXOperatorCallExpr is 1657b4609806e9232593ece09ce08b630836e825865cDouglas Gregor/// a subclass for overloaded operator calls that use operator syntax, e.g., 1658b4609806e9232593ece09ce08b630836e825865cDouglas Gregor/// "str1 + str2" to resolve to a function call. 16595f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass CallExpr : public Expr { 166077ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek enum { FN=0, ARGS_START=1 }; 16615549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Stmt **SubExprs; 16625f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer unsigned NumArgs; 16635f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation RParenLoc; 16641eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1665b4609806e9232593ece09ce08b630836e825865cDouglas Gregorprotected: 1666b4609806e9232593ece09ce08b630836e825865cDouglas Gregor // This version of the constructor is for derived classes. 1667668bf91d31265b6ea8c3eb854ba450857701f269Ted Kremenek CallExpr(ASTContext& C, StmtClass SC, Expr *fn, Expr **args, unsigned numargs, 1668f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall QualType t, ExprValueKind VK, SourceLocation rparenloc); 166942602bb40aefcc2751d4078ba88aacf4d965c9bdDouglas Gregor 16705f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 16711eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump CallExpr(ASTContext& C, Expr *fn, Expr **args, unsigned numargs, QualType t, 1672f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall ExprValueKind VK, SourceLocation rparenloc); 16731eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 16741f0d0133b0e8d1f01f63951ee04927796b34740dDouglas Gregor /// \brief Build an empty call expression. 1675ba0a9006dbc4814e1e35f82812cb5a1dad65e8b8Argyrios Kyrtzidis CallExpr(ASTContext &C, StmtClass SC, EmptyShell Empty); 16761f0d0133b0e8d1f01f63951ee04927796b34740dDouglas Gregor 16775549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek const Expr *getCallee() const { return cast<Expr>(SubExprs[FN]); } 16785549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getCallee() { return cast<Expr>(SubExprs[FN]); } 167918b2515e1bf8c86a4900792692e42fe1296be28dChris Lattner void setCallee(Expr *F) { SubExprs[FN] = F; } 1680a00425414e8c209cabc25d1826b200aeb94259afZhongxing Xu 1681d20254f2875d0004c57ee766f258dbcee29f4841Nuno Lopes Decl *getCalleeDecl(); 1682d20254f2875d0004c57ee766f258dbcee29f4841Nuno Lopes const Decl *getCalleeDecl() const { 1683d20254f2875d0004c57ee766f258dbcee29f4841Nuno Lopes return const_cast<CallExpr*>(this)->getCalleeDecl(); 1684d20254f2875d0004c57ee766f258dbcee29f4841Nuno Lopes } 1685d20254f2875d0004c57ee766f258dbcee29f4841Nuno Lopes 1686a00425414e8c209cabc25d1826b200aeb94259afZhongxing Xu /// \brief If the callee is a FunctionDecl, return it. Otherwise return 0. 1687a00425414e8c209cabc25d1826b200aeb94259afZhongxing Xu FunctionDecl *getDirectCallee(); 1688bc8d42c6f1565c0b2f93ad524edebfd7a4e6cac6Chris Lattner const FunctionDecl *getDirectCallee() const { 1689bc8d42c6f1565c0b2f93ad524edebfd7a4e6cac6Chris Lattner return const_cast<CallExpr*>(this)->getDirectCallee(); 1690bc8d42c6f1565c0b2f93ad524edebfd7a4e6cac6Chris Lattner } 1691a00425414e8c209cabc25d1826b200aeb94259afZhongxing Xu 16925f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// getNumArgs - Return the number of actual arguments to this call. 16935f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// 16945f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer unsigned getNumArgs() const { return NumArgs; } 16951eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 16965f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// getArg - Return the specified argument. 16975f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer Expr *getArg(unsigned Arg) { 16985f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer assert(Arg < NumArgs && "Arg access out of range!"); 16995549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek return cast<Expr>(SubExprs[Arg+ARGS_START]); 17005f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 17015f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer const Expr *getArg(unsigned Arg) const { 17025f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer assert(Arg < NumArgs && "Arg access out of range!"); 17035549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek return cast<Expr>(SubExprs[Arg+ARGS_START]); 17045f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 17051eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1706934f276cc5b45e19cd12ebb2d04fd7972a23865cSteve Naroff /// setArg - Set the specified argument. 1707934f276cc5b45e19cd12ebb2d04fd7972a23865cSteve Naroff void setArg(unsigned Arg, Expr *ArgExpr) { 1708934f276cc5b45e19cd12ebb2d04fd7972a23865cSteve Naroff assert(Arg < NumArgs && "Arg access out of range!"); 1709934f276cc5b45e19cd12ebb2d04fd7972a23865cSteve Naroff SubExprs[Arg+ARGS_START] = ArgExpr; 1710934f276cc5b45e19cd12ebb2d04fd7972a23865cSteve Naroff } 17111eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1712d18b3299debb7b0dbd9d34d9369189dc98c87f53Chris Lattner /// setNumArgs - This changes the number of arguments present in this call. 1713d18b3299debb7b0dbd9d34d9369189dc98c87f53Chris Lattner /// Any orphaned expressions are deleted by this, and any new operands are set 1714d18b3299debb7b0dbd9d34d9369189dc98c87f53Chris Lattner /// to null. 17158189cde56b4f6f938cd65f53c932fe1860d0204cTed Kremenek void setNumArgs(ASTContext& C, unsigned NumArgs); 17161eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 17175549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek typedef ExprIterator arg_iterator; 17185549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek typedef ConstExprIterator const_arg_iterator; 17191eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1720d18b3299debb7b0dbd9d34d9369189dc98c87f53Chris Lattner arg_iterator arg_begin() { return SubExprs+ARGS_START; } 1721d18b3299debb7b0dbd9d34d9369189dc98c87f53Chris Lattner arg_iterator arg_end() { return SubExprs+ARGS_START+getNumArgs(); } 17225549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek const_arg_iterator arg_begin() const { return SubExprs+ARGS_START; } 17235549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek const_arg_iterator arg_end() const { return SubExprs+ARGS_START+getNumArgs();} 17241eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 17255f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// getNumCommas - Return the number of commas that must have been present in 17265f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// this function call. 17275f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer unsigned getNumCommas() const { return NumArgs ? NumArgs - 1 : 0; } 17285f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1729cb888967400a03504c88acedd5248d6778a82f46Chris Lattner /// isBuiltinCall - If this is a call to a builtin, return the builtin ID. If 1730cb888967400a03504c88acedd5248d6778a82f46Chris Lattner /// not, return 0. 17313c385e5f8d9008fff18597ca302be19fa86e51f6Douglas Gregor unsigned isBuiltinCall(ASTContext &Context) const; 17321eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 17331eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /// getCallReturnType - Get the return type of the call expr. This is not 17341eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /// always the type of the expr itself, if the return type is a reference 17356dde78f744382a5627a04f984a97049e0c4b5e73Anders Carlsson /// type. 17366dde78f744382a5627a04f984a97049e0c4b5e73Anders Carlsson QualType getCallReturnType() const; 17371eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1738d18b3299debb7b0dbd9d34d9369189dc98c87f53Chris Lattner SourceLocation getRParenLoc() const { return RParenLoc; } 17391f0d0133b0e8d1f01f63951ee04927796b34740dDouglas Gregor void setRParenLoc(SourceLocation L) { RParenLoc = L; } 1740866b5c03e3b9c01cf496ad97b85a05afc917345bTed Kremenek 17411eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump virtual SourceRange getSourceRange() const { 174277ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek return SourceRange(getCallee()->getLocStart(), RParenLoc); 17435f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 17441eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 17451eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 17464bfe1968410ea8ffe3b4f629addd7c4bcf484765Sean Hunt return T->getStmtClass() >= firstCallExprConstant && 17474bfe1968410ea8ffe3b4f629addd7c4bcf484765Sean Hunt T->getStmtClass() <= lastCallExprConstant; 17485f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 17495f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const CallExpr *) { return true; } 175088a3514f36de96b19cdf50141c640df1a5f13f6cDouglas Gregor 175177ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek // Iterators 175277ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_begin(); 175377ed8e4edf6ed78c53fb20ec3210aff2a59c9d87Ted Kremenek virtual child_iterator child_end(); 17545f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 17555f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 1756ddca44e86281bb7dcf5fdcaf1563434c524e3861Chris Lattner/// MemberExpr - [C99 6.5.2.3] Structure and Union Members. X->F and X.F. 17575f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 17585f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass MemberExpr : public Expr { 17596bb8017bb9e828d118e15e59d71c66bba323c364John McCall /// Extra data stored in some member expressions. 17606bb8017bb9e828d118e15e59d71c66bba323c364John McCall struct MemberNameQualifier : public NameQualifier { 1761161755a09898c95d21bfff33707da9ca41cd53c5John McCall DeclAccessPair FoundDecl; 17626bb8017bb9e828d118e15e59d71c66bba323c364John McCall }; 17636bb8017bb9e828d118e15e59d71c66bba323c364John McCall 1764ddca44e86281bb7dcf5fdcaf1563434c524e3861Chris Lattner /// Base - the expression for the base pointer or structure references. In 1765ddca44e86281bb7dcf5fdcaf1563434c524e3861Chris Lattner /// X.F, this is "X". 17665549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Stmt *Base; 17671eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1768ddca44e86281bb7dcf5fdcaf1563434c524e3861Chris Lattner /// MemberDecl - This is the decl being referenced by the field/member name. 1769ddca44e86281bb7dcf5fdcaf1563434c524e3861Chris Lattner /// In X.F, this is the decl referenced by F. 1770f595cc41c4d95fe323f8a2b209523de9956f874dEli Friedman ValueDecl *MemberDecl; 17711eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1772ddca44e86281bb7dcf5fdcaf1563434c524e3861Chris Lattner /// MemberLoc - This is the location of the member name. 17735f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation MemberLoc; 17741eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 17752577743c5650c646fb705df01403707e94f2df04Abramo Bagnara /// MemberDNLoc - Provides source/type location info for the 17762577743c5650c646fb705df01403707e94f2df04Abramo Bagnara /// declaration name embedded in MemberDecl. 17772577743c5650c646fb705df01403707e94f2df04Abramo Bagnara DeclarationNameLoc MemberDNLoc; 17782577743c5650c646fb705df01403707e94f2df04Abramo Bagnara 1779ddca44e86281bb7dcf5fdcaf1563434c524e3861Chris Lattner /// IsArrow - True if this is "X->F", false if this is "X.F". 178083f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor bool IsArrow : 1; 17811eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 178283f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor /// \brief True if this member expression used a nested-name-specifier to 17836bb8017bb9e828d118e15e59d71c66bba323c364John McCall /// refer to the member, e.g., "x->Base::f", or found its member via a using 17846bb8017bb9e828d118e15e59d71c66bba323c364John McCall /// declaration. When true, a MemberNameQualifier 1785c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor /// structure is allocated immediately after the MemberExpr. 17866bb8017bb9e828d118e15e59d71c66bba323c364John McCall bool HasQualifierOrFoundDecl : 1; 17871eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1788c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor /// \brief True if this member expression specified a template argument list 1789c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor /// explicitly, e.g., x->f<int>. When true, an ExplicitTemplateArgumentList 1790c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor /// structure (and its TemplateArguments) are allocated immediately after 1791c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor /// the MemberExpr or, if the member expression also has a qualifier, after 17926bb8017bb9e828d118e15e59d71c66bba323c364John McCall /// the MemberNameQualifier structure. 1793c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor bool HasExplicitTemplateArgumentList : 1; 17941eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 179583f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor /// \brief Retrieve the qualifier that preceded the member name, if any. 17966bb8017bb9e828d118e15e59d71c66bba323c364John McCall MemberNameQualifier *getMemberQualifier() { 17976bb8017bb9e828d118e15e59d71c66bba323c364John McCall assert(HasQualifierOrFoundDecl); 17986bb8017bb9e828d118e15e59d71c66bba323c364John McCall return reinterpret_cast<MemberNameQualifier *> (this + 1); 179983f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor } 180083f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor 180183f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor /// \brief Retrieve the qualifier that preceded the member name, if any. 18026bb8017bb9e828d118e15e59d71c66bba323c364John McCall const MemberNameQualifier *getMemberQualifier() const { 1803c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor return const_cast<MemberExpr *>(this)->getMemberQualifier(); 1804c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor } 18051eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 18065f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 1807f595cc41c4d95fe323f8a2b209523de9956f874dEli Friedman MemberExpr(Expr *base, bool isarrow, ValueDecl *memberdecl, 1808f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall const DeclarationNameInfo &NameInfo, QualType ty, 1809f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall ExprValueKind VK, ExprObjectKind OK) 1810f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall : Expr(MemberExprClass, ty, VK, OK, 1811bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor base->isTypeDependent(), base->isValueDependent(), 1812bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor base->containsUnexpandedParameterPack()), 18132577743c5650c646fb705df01403707e94f2df04Abramo Bagnara Base(base), MemberDecl(memberdecl), MemberLoc(NameInfo.getLoc()), 18142577743c5650c646fb705df01403707e94f2df04Abramo Bagnara MemberDNLoc(NameInfo.getInfo()), IsArrow(isarrow), 18152577743c5650c646fb705df01403707e94f2df04Abramo Bagnara HasQualifierOrFoundDecl(false), HasExplicitTemplateArgumentList(false) { 18162577743c5650c646fb705df01403707e94f2df04Abramo Bagnara assert(memberdecl->getDeclName() == NameInfo.getName()); 18172577743c5650c646fb705df01403707e94f2df04Abramo Bagnara } 18182577743c5650c646fb705df01403707e94f2df04Abramo Bagnara 18192577743c5650c646fb705df01403707e94f2df04Abramo Bagnara // NOTE: this constructor should be used only when it is known that 18202577743c5650c646fb705df01403707e94f2df04Abramo Bagnara // the member name can not provide additional syntactic info 18212577743c5650c646fb705df01403707e94f2df04Abramo Bagnara // (i.e., source locations for C++ operator names or type source info 18222577743c5650c646fb705df01403707e94f2df04Abramo Bagnara // for constructors, destructors and conversion oeprators). 18232577743c5650c646fb705df01403707e94f2df04Abramo Bagnara MemberExpr(Expr *base, bool isarrow, ValueDecl *memberdecl, 1824f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall SourceLocation l, QualType ty, 1825f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall ExprValueKind VK, ExprObjectKind OK) 1826f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall : Expr(MemberExprClass, ty, VK, OK, 1827bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor base->isTypeDependent(), base->isValueDependent(), 1828bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor base->containsUnexpandedParameterPack()), 18292577743c5650c646fb705df01403707e94f2df04Abramo Bagnara Base(base), MemberDecl(memberdecl), MemberLoc(l), MemberDNLoc(), 18302577743c5650c646fb705df01403707e94f2df04Abramo Bagnara IsArrow(isarrow), 18316bb8017bb9e828d118e15e59d71c66bba323c364John McCall HasQualifierOrFoundDecl(false), HasExplicitTemplateArgumentList(false) {} 1832510190777c4bd53e960eea4665b204778fec1b64Eli Friedman 18331eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static MemberExpr *Create(ASTContext &C, Expr *base, bool isarrow, 183483f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor NestedNameSpecifier *qual, SourceRange qualrange, 1835161755a09898c95d21bfff33707da9ca41cd53c5John McCall ValueDecl *memberdecl, DeclAccessPair founddecl, 18362577743c5650c646fb705df01403707e94f2df04Abramo Bagnara DeclarationNameInfo MemberNameInfo, 1837d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall const TemplateArgumentListInfo *targs, 1838f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall QualType ty, ExprValueKind VK, ExprObjectKind OK); 18391eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 184088a3514f36de96b19cdf50141c640df1a5f13f6cDouglas Gregor void setBase(Expr *E) { Base = E; } 18415549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getBase() const { return cast<Expr>(Base); } 184257e8b05fe9ba03d410db9c161e032cb79c9ab5baDouglas Gregor 184357e8b05fe9ba03d410db9c161e032cb79c9ab5baDouglas Gregor /// \brief Retrieve the member declaration to which this expression refers. 184457e8b05fe9ba03d410db9c161e032cb79c9ab5baDouglas Gregor /// 184557e8b05fe9ba03d410db9c161e032cb79c9ab5baDouglas Gregor /// The returned declaration will either be a FieldDecl or (in C++) 184657e8b05fe9ba03d410db9c161e032cb79c9ab5baDouglas Gregor /// a CXXMethodDecl. 1847f595cc41c4d95fe323f8a2b209523de9956f874dEli Friedman ValueDecl *getMemberDecl() const { return MemberDecl; } 1848f595cc41c4d95fe323f8a2b209523de9956f874dEli Friedman void setMemberDecl(ValueDecl *D) { MemberDecl = D; } 18491f0d0133b0e8d1f01f63951ee04927796b34740dDouglas Gregor 18506bb8017bb9e828d118e15e59d71c66bba323c364John McCall /// \brief Retrieves the declaration found by lookup. 1851161755a09898c95d21bfff33707da9ca41cd53c5John McCall DeclAccessPair getFoundDecl() const { 18526bb8017bb9e828d118e15e59d71c66bba323c364John McCall if (!HasQualifierOrFoundDecl) 1853161755a09898c95d21bfff33707da9ca41cd53c5John McCall return DeclAccessPair::make(getMemberDecl(), 1854161755a09898c95d21bfff33707da9ca41cd53c5John McCall getMemberDecl()->getAccess()); 18556bb8017bb9e828d118e15e59d71c66bba323c364John McCall return getMemberQualifier()->FoundDecl; 18566bb8017bb9e828d118e15e59d71c66bba323c364John McCall } 18576bb8017bb9e828d118e15e59d71c66bba323c364John McCall 18581eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /// \brief Determines whether this member expression actually had 18590979c805475d1ba49b5d6ef93c4d2ce6d2eab6edDouglas Gregor /// a C++ nested-name-specifier prior to the name of the member, e.g., 18600979c805475d1ba49b5d6ef93c4d2ce6d2eab6edDouglas Gregor /// x->Base::foo. 18616bb8017bb9e828d118e15e59d71c66bba323c364John McCall bool hasQualifier() const { return getQualifier() != 0; } 18621eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 186383f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor /// \brief If the member name was qualified, retrieves the source range of 186483f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor /// the nested-name-specifier that precedes the member name. Otherwise, 186583f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor /// returns an empty source range. 18661eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump SourceRange getQualifierRange() const { 18676bb8017bb9e828d118e15e59d71c66bba323c364John McCall if (!HasQualifierOrFoundDecl) 186883f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor return SourceRange(); 18691eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 187083f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor return getMemberQualifier()->Range; 187183f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor } 18721eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 18731eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /// \brief If the member name was qualified, retrieves the 187483f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor /// nested-name-specifier that precedes the member name. Otherwise, returns 187583f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor /// NULL. 18761eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump NestedNameSpecifier *getQualifier() const { 18776bb8017bb9e828d118e15e59d71c66bba323c364John McCall if (!HasQualifierOrFoundDecl) 187883f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor return 0; 18791eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 188083f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor return getMemberQualifier()->NNS; 188183f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor } 1882c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor 1883c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor /// \brief Determines whether this member expression actually had a C++ 1884c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor /// template argument list explicitly specified, e.g., x.f<int>. 1885096832c5ed5b9106fa177ebc148489760c3bc496John McCall bool hasExplicitTemplateArgs() const { 18861eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return HasExplicitTemplateArgumentList; 1887c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor } 18881eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1889d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall /// \brief Copies the template arguments (if present) into the given 1890d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall /// structure. 1891d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall void copyTemplateArgumentsInto(TemplateArgumentListInfo &List) const { 1892096832c5ed5b9106fa177ebc148489760c3bc496John McCall if (hasExplicitTemplateArgs()) 1893096832c5ed5b9106fa177ebc148489760c3bc496John McCall getExplicitTemplateArgs().copyInto(List); 1894096832c5ed5b9106fa177ebc148489760c3bc496John McCall } 1895096832c5ed5b9106fa177ebc148489760c3bc496John McCall 1896096832c5ed5b9106fa177ebc148489760c3bc496John McCall /// \brief Retrieve the explicit template argument list that 1897096832c5ed5b9106fa177ebc148489760c3bc496John McCall /// follow the member template name. This must only be called on an 1898096832c5ed5b9106fa177ebc148489760c3bc496John McCall /// expression with explicit template arguments. 1899096832c5ed5b9106fa177ebc148489760c3bc496John McCall ExplicitTemplateArgumentList &getExplicitTemplateArgs() { 1900096832c5ed5b9106fa177ebc148489760c3bc496John McCall assert(HasExplicitTemplateArgumentList); 1901096832c5ed5b9106fa177ebc148489760c3bc496John McCall if (!HasQualifierOrFoundDecl) 1902096832c5ed5b9106fa177ebc148489760c3bc496John McCall return *reinterpret_cast<ExplicitTemplateArgumentList *>(this + 1); 1903096832c5ed5b9106fa177ebc148489760c3bc496John McCall 1904096832c5ed5b9106fa177ebc148489760c3bc496John McCall return *reinterpret_cast<ExplicitTemplateArgumentList *>( 1905096832c5ed5b9106fa177ebc148489760c3bc496John McCall getMemberQualifier() + 1); 1906096832c5ed5b9106fa177ebc148489760c3bc496John McCall } 1907096832c5ed5b9106fa177ebc148489760c3bc496John McCall 1908096832c5ed5b9106fa177ebc148489760c3bc496John McCall /// \brief Retrieve the explicit template argument list that 1909096832c5ed5b9106fa177ebc148489760c3bc496John McCall /// followed the member template name. This must only be called on 1910096832c5ed5b9106fa177ebc148489760c3bc496John McCall /// an expression with explicit template arguments. 1911096832c5ed5b9106fa177ebc148489760c3bc496John McCall const ExplicitTemplateArgumentList &getExplicitTemplateArgs() const { 1912096832c5ed5b9106fa177ebc148489760c3bc496John McCall return const_cast<MemberExpr *>(this)->getExplicitTemplateArgs(); 1913096832c5ed5b9106fa177ebc148489760c3bc496John McCall } 1914096832c5ed5b9106fa177ebc148489760c3bc496John McCall 1915096832c5ed5b9106fa177ebc148489760c3bc496John McCall /// \brief Retrieves the optional explicit template arguments. 1916096832c5ed5b9106fa177ebc148489760c3bc496John McCall /// This points to the same data as getExplicitTemplateArgs(), but 1917096832c5ed5b9106fa177ebc148489760c3bc496John McCall /// returns null if there are no explicit template arguments. 1918096832c5ed5b9106fa177ebc148489760c3bc496John McCall const ExplicitTemplateArgumentList *getOptionalExplicitTemplateArgs() const { 1919096832c5ed5b9106fa177ebc148489760c3bc496John McCall if (!hasExplicitTemplateArgs()) return 0; 1920096832c5ed5b9106fa177ebc148489760c3bc496John McCall return &getExplicitTemplateArgs(); 1921d5532b6cfff2977e0c59fa6ead7f7973984a620dJohn McCall } 1922c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt 19231eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /// \brief Retrieve the location of the left angle bracket following the 1924c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor /// member name ('<'), if any. 19251eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump SourceLocation getLAngleLoc() const { 1926c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor if (!HasExplicitTemplateArgumentList) 1927c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor return SourceLocation(); 19281eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1929096832c5ed5b9106fa177ebc148489760c3bc496John McCall return getExplicitTemplateArgs().LAngleLoc; 1930c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor } 19311eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1932c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor /// \brief Retrieve the template arguments provided as part of this 1933c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor /// template-id. 1934833ca991c1bfc967f0995974ca86f66ba1f666b5John McCall const TemplateArgumentLoc *getTemplateArgs() const { 1935c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor if (!HasExplicitTemplateArgumentList) 19361eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return 0; 19371eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1938096832c5ed5b9106fa177ebc148489760c3bc496John McCall return getExplicitTemplateArgs().getTemplateArgs(); 1939c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor } 19401eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1941c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor /// \brief Retrieve the number of template arguments provided as part of this 1942c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor /// template-id. 19431eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump unsigned getNumTemplateArgs() const { 1944c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor if (!HasExplicitTemplateArgumentList) 19451eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return 0; 19461eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1947096832c5ed5b9106fa177ebc148489760c3bc496John McCall return getExplicitTemplateArgs().NumTemplateArgs; 1948c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor } 19491eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 19501eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /// \brief Retrieve the location of the right angle bracket following the 1951c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor /// template arguments ('>'). 19521eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump SourceLocation getRAngleLoc() const { 1953c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor if (!HasExplicitTemplateArgumentList) 1954c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor return SourceLocation(); 19551eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1956096832c5ed5b9106fa177ebc148489760c3bc496John McCall return getExplicitTemplateArgs().RAngleLoc; 1957c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor } 19581eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 19592577743c5650c646fb705df01403707e94f2df04Abramo Bagnara /// \brief Retrieve the member declaration name info. 19602577743c5650c646fb705df01403707e94f2df04Abramo Bagnara DeclarationNameInfo getMemberNameInfo() const { 19612577743c5650c646fb705df01403707e94f2df04Abramo Bagnara return DeclarationNameInfo(MemberDecl->getDeclName(), 19622577743c5650c646fb705df01403707e94f2df04Abramo Bagnara MemberLoc, MemberDNLoc); 19632577743c5650c646fb705df01403707e94f2df04Abramo Bagnara } 19642577743c5650c646fb705df01403707e94f2df04Abramo Bagnara 19655f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer bool isArrow() const { return IsArrow; } 19661f0d0133b0e8d1f01f63951ee04927796b34740dDouglas Gregor void setArrow(bool A) { IsArrow = A; } 19671f0d0133b0e8d1f01f63951ee04927796b34740dDouglas Gregor 1968ddca44e86281bb7dcf5fdcaf1563434c524e3861Chris Lattner /// getMemberLoc - Return the location of the "member", in X->F, it is the 1969ddca44e86281bb7dcf5fdcaf1563434c524e3861Chris Lattner /// location of 'F'. 1970026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner SourceLocation getMemberLoc() const { return MemberLoc; } 19711f0d0133b0e8d1f01f63951ee04927796b34740dDouglas Gregor void setMemberLoc(SourceLocation L) { MemberLoc = L; } 19725f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 19735f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer virtual SourceRange getSourceRange() const { 197472527137c521ad9330ecb81ccd841159719dc8cdEli Friedman // If we have an implicit base (like a C++ implicit this), 197572527137c521ad9330ecb81ccd841159719dc8cdEli Friedman // make sure not to return its location 19762577743c5650c646fb705df01403707e94f2df04Abramo Bagnara SourceLocation EndLoc = (HasExplicitTemplateArgumentList) 19772577743c5650c646fb705df01403707e94f2df04Abramo Bagnara ? getRAngleLoc() : getMemberNameInfo().getEndLoc(); 19781eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 197972527137c521ad9330ecb81ccd841159719dc8cdEli Friedman SourceLocation BaseLoc = getBase()->getLocStart(); 198072527137c521ad9330ecb81ccd841159719dc8cdEli Friedman if (BaseLoc.isInvalid()) 1981c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor return SourceRange(MemberLoc, EndLoc); 1982c4bf26fbdff42967d660f505a83f75a4df2cc752Douglas Gregor return SourceRange(BaseLoc, EndLoc); 19835f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 19841eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 19855f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer virtual SourceLocation getExprLoc() const { return MemberLoc; } 19865f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 19871eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 198883f6faf37d9bf58986bedc9bc0ea897a56b4dbadDouglas Gregor return T->getStmtClass() == MemberExprClass; 19895f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 19905f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const MemberExpr *) { return true; } 19911eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 19921237c673c07f9d827129ba02720108816abde562Ted Kremenek // Iterators 19931237c673c07f9d827129ba02720108816abde562Ted Kremenek virtual child_iterator child_begin(); 19941237c673c07f9d827129ba02720108816abde562Ted Kremenek virtual child_iterator child_end(); 19954045107b7384fd68eed5e3e2f06fc2a47e7be0a6Argyrios Kyrtzidis 19964045107b7384fd68eed5e3e2f06fc2a47e7be0a6Argyrios Kyrtzidis friend class ASTReader; 19974045107b7384fd68eed5e3e2f06fc2a47e7be0a6Argyrios Kyrtzidis friend class ASTStmtWriter; 19985f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 19995f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 20001eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// CompoundLiteralExpr - [C99 6.5.2.5] 2001aff1edd84aaafef15b737acd8ec61abcca6d6bc3Steve Naroff/// 2002aff1edd84aaafef15b737acd8ec61abcca6d6bc3Steve Naroffclass CompoundLiteralExpr : public Expr { 20030fc53dfc7a33f68e71ef245389c4e7cd34a62a39Chris Lattner /// LParenLoc - If non-null, this is the location of the left paren in a 20040fc53dfc7a33f68e71ef245389c4e7cd34a62a39Chris Lattner /// compound literal like "(int){4}". This can be null if this is a 20050fc53dfc7a33f68e71ef245389c4e7cd34a62a39Chris Lattner /// synthesized compound expression. 20060fc53dfc7a33f68e71ef245389c4e7cd34a62a39Chris Lattner SourceLocation LParenLoc; 20071d7d8d66eff7ed0f3e957d330930cc9ab8047addJohn McCall 20081d7d8d66eff7ed0f3e957d330930cc9ab8047addJohn McCall /// The type as written. This can be an incomplete array type, in 20091d7d8d66eff7ed0f3e957d330930cc9ab8047addJohn McCall /// which case the actual expression type will be different. 201042f56b50062cd3b3c6b23fdb9053578ae9145664John McCall TypeSourceInfo *TInfo; 20115549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Stmt *Init; 2012e9b12198c4cc7f5687960100351b4af006c14469Steve Naroff bool FileScope; 2013aff1edd84aaafef15b737acd8ec61abcca6d6bc3Steve Naroffpublic: 201442f56b50062cd3b3c6b23fdb9053578ae9145664John McCall CompoundLiteralExpr(SourceLocation lparenloc, TypeSourceInfo *tinfo, 2015f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall QualType T, ExprValueKind VK, Expr *init, bool fileScope) 2016f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall : Expr(CompoundLiteralExprClass, T, VK, OK_Ordinary, 2017bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor tinfo->getType()->isDependentType(), 2018bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor init->isValueDependent(), 2019bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor init->containsUnexpandedParameterPack()), 202042f56b50062cd3b3c6b23fdb9053578ae9145664John McCall LParenLoc(lparenloc), TInfo(tinfo), Init(init), FileScope(fileScope) {} 20211eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2022ba6d7e7fa5f79959d3eef39adb5620d845ba5198Douglas Gregor /// \brief Construct an empty compound literal. 2023ba6d7e7fa5f79959d3eef39adb5620d845ba5198Douglas Gregor explicit CompoundLiteralExpr(EmptyShell Empty) 2024ba6d7e7fa5f79959d3eef39adb5620d845ba5198Douglas Gregor : Expr(CompoundLiteralExprClass, Empty) { } 2025ba6d7e7fa5f79959d3eef39adb5620d845ba5198Douglas Gregor 20265549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek const Expr *getInitializer() const { return cast<Expr>(Init); } 20275549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getInitializer() { return cast<Expr>(Init); } 2028ba6d7e7fa5f79959d3eef39adb5620d845ba5198Douglas Gregor void setInitializer(Expr *E) { Init = E; } 2029e9b12198c4cc7f5687960100351b4af006c14469Steve Naroff 2030e9b12198c4cc7f5687960100351b4af006c14469Steve Naroff bool isFileScope() const { return FileScope; } 2031ba6d7e7fa5f79959d3eef39adb5620d845ba5198Douglas Gregor void setFileScope(bool FS) { FileScope = FS; } 2032ba6d7e7fa5f79959d3eef39adb5620d845ba5198Douglas Gregor 20330fc53dfc7a33f68e71ef245389c4e7cd34a62a39Chris Lattner SourceLocation getLParenLoc() const { return LParenLoc; } 2034ba6d7e7fa5f79959d3eef39adb5620d845ba5198Douglas Gregor void setLParenLoc(SourceLocation L) { LParenLoc = L; } 2035ba6d7e7fa5f79959d3eef39adb5620d845ba5198Douglas Gregor 203642f56b50062cd3b3c6b23fdb9053578ae9145664John McCall TypeSourceInfo *getTypeSourceInfo() const { return TInfo; } 203742f56b50062cd3b3c6b23fdb9053578ae9145664John McCall void setTypeSourceInfo(TypeSourceInfo* tinfo) { TInfo = tinfo; } 203842f56b50062cd3b3c6b23fdb9053578ae9145664John McCall 203973d0d4fac161ed12926e010dcf8b448a8de6a2ecChris Lattner virtual SourceRange getSourceRange() const { 20400fc53dfc7a33f68e71ef245389c4e7cd34a62a39Chris Lattner // FIXME: Init should never be null. 20410fc53dfc7a33f68e71ef245389c4e7cd34a62a39Chris Lattner if (!Init) 20420fc53dfc7a33f68e71ef245389c4e7cd34a62a39Chris Lattner return SourceRange(); 20430fc53dfc7a33f68e71ef245389c4e7cd34a62a39Chris Lattner if (LParenLoc.isInvalid()) 204473d0d4fac161ed12926e010dcf8b448a8de6a2ecChris Lattner return Init->getSourceRange(); 20450fc53dfc7a33f68e71ef245389c4e7cd34a62a39Chris Lattner return SourceRange(LParenLoc, Init->getLocEnd()); 204673d0d4fac161ed12926e010dcf8b448a8de6a2ecChris Lattner } 2047aff1edd84aaafef15b737acd8ec61abcca6d6bc3Steve Naroff 20481eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 20491eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == CompoundLiteralExprClass; 2050aff1edd84aaafef15b737acd8ec61abcca6d6bc3Steve Naroff } 2051aff1edd84aaafef15b737acd8ec61abcca6d6bc3Steve Naroff static bool classof(const CompoundLiteralExpr *) { return true; } 20521eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 20531237c673c07f9d827129ba02720108816abde562Ted Kremenek // Iterators 20541237c673c07f9d827129ba02720108816abde562Ted Kremenek virtual child_iterator child_begin(); 20551237c673c07f9d827129ba02720108816abde562Ted Kremenek virtual child_iterator child_end(); 2056aff1edd84aaafef15b737acd8ec61abcca6d6bc3Steve Naroff}; 2057aff1edd84aaafef15b737acd8ec61abcca6d6bc3Steve Naroff 205849badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// CastExpr - Base class for type casts, including both implicit 205949badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// casts (ImplicitCastExpr) and explicit casts that have some 206049badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// representation in the source code (ExplicitCastExpr's derived 206149badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// classes). 20620835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidisclass CastExpr : public Expr { 2063cdef2b75aa60cde1ca00e0aa3f89139ac89c6ae4Anders Carlssonpublic: 20645baba9d98364a3525d6afa15a04cdad82fd6dd30John McCall typedef clang::CastKind CastKind; 20651eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2066cdef2b75aa60cde1ca00e0aa3f89139ac89c6ae4Anders Carlssonprivate: 20670835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis Stmt *Op; 2068409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson 2069daa8e4e888758d55a7a759dd4a91b83921cef222John McCall void CheckCastConsistency() const { 2070409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson#ifndef NDEBUG 2071409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson switch (getCastKind()) { 20725cf86ba6b5a724bf91cb52feade1158f1fbeb605Anders Carlsson case CK_DerivedToBase: 2073cee22421929c91b481f4d1bb85cd48c0f6b7510bAnders Carlsson case CK_UncheckedDerivedToBase: 2074cee22421929c91b481f4d1bb85cd48c0f6b7510bAnders Carlsson case CK_DerivedToBaseMemberPointer: 2075409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson case CK_BaseToDerived: 2076409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson case CK_BaseToDerivedMemberPointer: 2077f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall assert(!path_empty() && "Cast kind should have a base path!"); 2078f9d68e1dd015972318b2448f75115ff4fc3d5008Anders Carlsson break; 2079409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson 2080409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson // These should not have an inheritance path. 2081409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson case CK_BitCast: 2082409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson case CK_Dynamic: 2083409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson case CK_ToUnion: 2084409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson case CK_ArrayToPointerDecay: 2085409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson case CK_FunctionToPointerDecay: 2086409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson case CK_NullToMemberPointer: 2087404cd1669c3ba138a9ae0a619bd689cce5aae271John McCall case CK_NullToPointer: 2088409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson case CK_ConstructorConversion: 2089409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson case CK_IntegralToPointer: 2090409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson case CK_PointerToIntegral: 2091409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson case CK_ToVoid: 2092409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson case CK_VectorSplat: 2093409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson case CK_IntegralCast: 2094409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson case CK_IntegralToFloating: 2095409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson case CK_FloatingToIntegral: 2096409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson case CK_FloatingCast: 2097409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson case CK_AnyPointerToObjCPointerCast: 2098409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson case CK_AnyPointerToBlockPointerCast: 2099569c3166874324c24011f8ade6978421f0d39b3cDouglas Gregor case CK_ObjCObjectLValueCast: 21002bb5d00fcf71a7b4d478d478be778fff0494aff6John McCall case CK_FloatingRealToComplex: 2101f3ea8cfe6b1c2ef0702efe130561e9e66708d799John McCall case CK_FloatingComplexToReal: 21022bb5d00fcf71a7b4d478d478be778fff0494aff6John McCall case CK_FloatingComplexCast: 2103f3ea8cfe6b1c2ef0702efe130561e9e66708d799John McCall case CK_FloatingComplexToIntegralComplex: 21042bb5d00fcf71a7b4d478d478be778fff0494aff6John McCall case CK_IntegralRealToComplex: 2105f3ea8cfe6b1c2ef0702efe130561e9e66708d799John McCall case CK_IntegralComplexToReal: 21062bb5d00fcf71a7b4d478d478be778fff0494aff6John McCall case CK_IntegralComplexCast: 2107f3ea8cfe6b1c2ef0702efe130561e9e66708d799John McCall case CK_IntegralComplexToFloatingComplex: 2108daa8e4e888758d55a7a759dd4a91b83921cef222John McCall assert(!getType()->isBooleanType() && "unheralded conversion to bool"); 2109daa8e4e888758d55a7a759dd4a91b83921cef222John McCall // fallthrough to check for null base path 2110daa8e4e888758d55a7a759dd4a91b83921cef222John McCall 2111daa8e4e888758d55a7a759dd4a91b83921cef222John McCall case CK_Dependent: 21120ae287a498b8cec2086fe6b7e753cbb3df63e74aJohn McCall case CK_LValueToRValue: 2113f6a1648197562e0b133440d612d9af297d0a86ccJohn McCall case CK_GetObjCProperty: 2114daa8e4e888758d55a7a759dd4a91b83921cef222John McCall case CK_NoOp: 2115daa8e4e888758d55a7a759dd4a91b83921cef222John McCall case CK_PointerToBoolean: 2116daa8e4e888758d55a7a759dd4a91b83921cef222John McCall case CK_IntegralToBoolean: 2117daa8e4e888758d55a7a759dd4a91b83921cef222John McCall case CK_FloatingToBoolean: 2118daa8e4e888758d55a7a759dd4a91b83921cef222John McCall case CK_MemberPointerToBoolean: 2119daa8e4e888758d55a7a759dd4a91b83921cef222John McCall case CK_FloatingComplexToBoolean: 2120daa8e4e888758d55a7a759dd4a91b83921cef222John McCall case CK_IntegralComplexToBoolean: 21215082d34e4107a44ac7f07b62f7a6c917e0e6e71eJohn McCall case CK_LValueBitCast: // -> bool& 21225082d34e4107a44ac7f07b62f7a6c917e0e6e71eJohn McCall case CK_UserDefinedConversion: // operator bool() 2123f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall assert(path_empty() && "Cast kind should not have a base path!"); 2124409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson break; 2125409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson } 2126409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson#endif 2127409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson } 2128409c99edb8b623403fade6f3a9e9c86acda74455Anders Carlsson 2129f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall const CXXBaseSpecifier * const *path_buffer() const { 2130f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall return const_cast<CastExpr*>(this)->path_buffer(); 2131f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall } 2132f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall CXXBaseSpecifier **path_buffer(); 2133f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall 21340835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidisprotected: 2135f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall CastExpr(StmtClass SC, QualType ty, ExprValueKind VK, 2136f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall const CastKind kind, Expr *op, unsigned BasePathSize) : 2137f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall Expr(SC, ty, VK, OK_Ordinary, 2138898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // Cast expressions are type-dependent if the type is 2139898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // dependent (C++ [temp.dep.expr]p3). 2140898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor ty->isDependentType(), 2141898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // Cast expressions are value-dependent if the type is 2142898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // dependent or if the subexpression is value-dependent. 2143bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor ty->isDependentType() || (op && op->isValueDependent()), 2144bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor (ty->containsUnexpandedParameterPack() || 2145bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor op->containsUnexpandedParameterPack())), 21468e6285af719adc6f86d6faa235d22a08eb68ee3aJohn McCall Op(op) { 2147daa8e4e888758d55a7a759dd4a91b83921cef222John McCall assert(kind != CK_Invalid && "creating cast with invalid cast kind"); 21488e6285af719adc6f86d6faa235d22a08eb68ee3aJohn McCall CastExprBits.Kind = kind; 21498e6285af719adc6f86d6faa235d22a08eb68ee3aJohn McCall CastExprBits.BasePathSize = BasePathSize; 2150daa8e4e888758d55a7a759dd4a91b83921cef222John McCall CheckCastConsistency(); 2151f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall } 21521eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2153087fd536809ebe754d91c641a98917e02dd7452dDouglas Gregor /// \brief Construct an empty cast. 2154f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall CastExpr(StmtClass SC, EmptyShell Empty, unsigned BasePathSize) 21558e6285af719adc6f86d6faa235d22a08eb68ee3aJohn McCall : Expr(SC, Empty) { 21568e6285af719adc6f86d6faa235d22a08eb68ee3aJohn McCall CastExprBits.BasePathSize = BasePathSize; 21578e6285af719adc6f86d6faa235d22a08eb68ee3aJohn McCall } 21581eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 21590835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidispublic: 21608e6285af719adc6f86d6faa235d22a08eb68ee3aJohn McCall CastKind getCastKind() const { return (CastKind) CastExprBits.Kind; } 21618e6285af719adc6f86d6faa235d22a08eb68ee3aJohn McCall void setCastKind(CastKind K) { CastExprBits.Kind = K; } 2162f8ec55a104e55961f8666f773dce99bbc628298fAnders Carlsson const char *getCastKindName() const; 2163f8ec55a104e55961f8666f773dce99bbc628298fAnders Carlsson 21640835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis Expr *getSubExpr() { return cast<Expr>(Op); } 21650835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis const Expr *getSubExpr() const { return cast<Expr>(Op); } 2166087fd536809ebe754d91c641a98917e02dd7452dDouglas Gregor void setSubExpr(Expr *E) { Op = E; } 2167087fd536809ebe754d91c641a98917e02dd7452dDouglas Gregor 21686eef519fc8a97bb7ca6066f23d35e10f06b2c1b5Douglas Gregor /// \brief Retrieve the cast subexpression as it was written in the source 21696eef519fc8a97bb7ca6066f23d35e10f06b2c1b5Douglas Gregor /// code, looking through any implicit casts or other intermediate nodes 21706eef519fc8a97bb7ca6066f23d35e10f06b2c1b5Douglas Gregor /// introduced by semantic analysis. 21716eef519fc8a97bb7ca6066f23d35e10f06b2c1b5Douglas Gregor Expr *getSubExprAsWritten(); 21726eef519fc8a97bb7ca6066f23d35e10f06b2c1b5Douglas Gregor const Expr *getSubExprAsWritten() const { 21736eef519fc8a97bb7ca6066f23d35e10f06b2c1b5Douglas Gregor return const_cast<CastExpr *>(this)->getSubExprAsWritten(); 21746eef519fc8a97bb7ca6066f23d35e10f06b2c1b5Douglas Gregor } 217541b2dcd465f1e438502c420effc9d0c747f9db8fAnders Carlsson 2176f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall typedef CXXBaseSpecifier **path_iterator; 2177f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall typedef const CXXBaseSpecifier * const *path_const_iterator; 21788e6285af719adc6f86d6faa235d22a08eb68ee3aJohn McCall bool path_empty() const { return CastExprBits.BasePathSize == 0; } 21798e6285af719adc6f86d6faa235d22a08eb68ee3aJohn McCall unsigned path_size() const { return CastExprBits.BasePathSize; } 2180f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall path_iterator path_begin() { return path_buffer(); } 2181f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall path_iterator path_end() { return path_buffer() + path_size(); } 2182f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall path_const_iterator path_begin() const { return path_buffer(); } 2183f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall path_const_iterator path_end() const { return path_buffer() + path_size(); } 2184f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall 2185f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall void setCastPath(const CXXCastPath &Path); 218641b2dcd465f1e438502c420effc9d0c747f9db8fAnders Carlsson 21871eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 21884bfe1968410ea8ffe3b4f629addd7c4bcf484765Sean Hunt return T->getStmtClass() >= firstCastExprConstant && 21894bfe1968410ea8ffe3b4f629addd7c4bcf484765Sean Hunt T->getStmtClass() <= lastCastExprConstant; 21900835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis } 21910835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis static bool classof(const CastExpr *) { return true; } 21921eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 21930835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis // Iterators 21940835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis virtual child_iterator child_begin(); 21950835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis virtual child_iterator child_end(); 21960835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis}; 21970835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis 219849badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// ImplicitCastExpr - Allows us to explicitly represent implicit type 219949badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// conversions, which have no direct representation in the original 220049badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// source code. For example: converting T[]->T*, void f()->void 220149badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// (*f)(), float->double, short->int, etc. 220249b4526992a8c8a6a290aa3efa9828154a24af8dSteve Naroff/// 2203bf3af056289893f58d37b05a2c80970708781d61Douglas Gregor/// In C, implicit casts always produce rvalues. However, in C++, an 2204bf3af056289893f58d37b05a2c80970708781d61Douglas Gregor/// implicit cast whose result is being bound to a reference will be 2205906082edf2aea1c6de2926f93a8d7121e49d2a54Sebastian Redl/// an lvalue or xvalue. For example: 2206bf3af056289893f58d37b05a2c80970708781d61Douglas Gregor/// 2207bf3af056289893f58d37b05a2c80970708781d61Douglas Gregor/// @code 2208bf3af056289893f58d37b05a2c80970708781d61Douglas Gregor/// class Base { }; 2209bf3af056289893f58d37b05a2c80970708781d61Douglas Gregor/// class Derived : public Base { }; 2210906082edf2aea1c6de2926f93a8d7121e49d2a54Sebastian Redl/// Derived &&ref(); 22111eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// void f(Derived d) { 2212906082edf2aea1c6de2926f93a8d7121e49d2a54Sebastian Redl/// Base& b = d; // initializer is an ImplicitCastExpr 2213906082edf2aea1c6de2926f93a8d7121e49d2a54Sebastian Redl/// // to an lvalue of type Base 2214906082edf2aea1c6de2926f93a8d7121e49d2a54Sebastian Redl/// Base&& r = ref(); // initializer is an ImplicitCastExpr 2215906082edf2aea1c6de2926f93a8d7121e49d2a54Sebastian Redl/// // to an xvalue of type Base 2216bf3af056289893f58d37b05a2c80970708781d61Douglas Gregor/// } 2217bf3af056289893f58d37b05a2c80970708781d61Douglas Gregor/// @endcode 22180835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidisclass ImplicitCastExpr : public CastExpr { 2219906082edf2aea1c6de2926f93a8d7121e49d2a54Sebastian Redlprivate: 2220f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall ImplicitCastExpr(QualType ty, CastKind kind, Expr *op, 22215baba9d98364a3525d6afa15a04cdad82fd6dd30John McCall unsigned BasePathLength, ExprValueKind VK) 2222f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall : CastExpr(ImplicitCastExprClass, ty, VK, kind, op, BasePathLength) { 22235baba9d98364a3525d6afa15a04cdad82fd6dd30John McCall } 222490045e8ebabf50d6f1b3a67081a621b20b5e5341Steve Naroff 2225087fd536809ebe754d91c641a98917e02dd7452dDouglas Gregor /// \brief Construct an empty implicit cast. 2226f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall explicit ImplicitCastExpr(EmptyShell Shell, unsigned PathSize) 2227f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall : CastExpr(ImplicitCastExprClass, Shell, PathSize) { } 2228f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall 2229f871d0cc377a1367b519a6cce26be74607566ebaJohn McCallpublic: 2230f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall enum OnStack_t { OnStack }; 2231f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall ImplicitCastExpr(OnStack_t _, QualType ty, CastKind kind, Expr *op, 22325baba9d98364a3525d6afa15a04cdad82fd6dd30John McCall ExprValueKind VK) 2233f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall : CastExpr(ImplicitCastExprClass, ty, VK, kind, op, 0) { 22345baba9d98364a3525d6afa15a04cdad82fd6dd30John McCall } 2235f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall 2236f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall static ImplicitCastExpr *Create(ASTContext &Context, QualType T, 2237f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall CastKind Kind, Expr *Operand, 2238f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall const CXXCastPath *BasePath, 22395baba9d98364a3525d6afa15a04cdad82fd6dd30John McCall ExprValueKind Cat); 2240f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall 2241f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall static ImplicitCastExpr *CreateEmpty(ASTContext &Context, unsigned PathSize); 2242087fd536809ebe754d91c641a98917e02dd7452dDouglas Gregor 22430835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis virtual SourceRange getSourceRange() const { 22440835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis return getSubExpr()->getSourceRange(); 22450835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidis } 224690045e8ebabf50d6f1b3a67081a621b20b5e5341Steve Naroff 22471eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 22481eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == ImplicitCastExprClass; 224949b4526992a8c8a6a290aa3efa9828154a24af8dSteve Naroff } 225049b4526992a8c8a6a290aa3efa9828154a24af8dSteve Naroff static bool classof(const ImplicitCastExpr *) { return true; } 225149b4526992a8c8a6a290aa3efa9828154a24af8dSteve Naroff}; 225249b4526992a8c8a6a290aa3efa9828154a24af8dSteve Naroff 225349badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// ExplicitCastExpr - An explicit cast written in the source 22541eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// code. 225549badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// 225649badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// This class is effectively an abstract class, because it provides 225749badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// the basic representation of an explicitly-written cast without 225849badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// specifying which kind of cast (C cast, functional cast, static 225949badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// cast, etc.) was written; specific derived classes represent the 226049badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// particular style of cast and its location information. 22615f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 226249badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// Unlike implicit casts, explicit cast nodes have two different 226349badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// types: the type that was written into the source code, and the 226449badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// actual type of the expression as determined by semantic 226549badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// analysis. These types may differ slightly. For example, in C++ one 226649badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// can cast to a reference type, which indicates that the resulting 2267906082edf2aea1c6de2926f93a8d7121e49d2a54Sebastian Redl/// expression will be an lvalue or xvalue. The reference type, however, 2268906082edf2aea1c6de2926f93a8d7121e49d2a54Sebastian Redl/// will not be used as the type of the expression. 22690835a3cdeefe714b4959d31127ea155e56393125Argyrios Kyrtzidisclass ExplicitCastExpr : public CastExpr { 22709d125033a9853f3b572a4c9e2f9e2d4e5e346973John McCall /// TInfo - Source type info for the (written) type 22719d125033a9853f3b572a4c9e2f9e2d4e5e346973John McCall /// this expression is casting to. 22729d125033a9853f3b572a4c9e2f9e2d4e5e346973John McCall TypeSourceInfo *TInfo; 227349badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor 227449badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregorprotected: 2275f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall ExplicitCastExpr(StmtClass SC, QualType exprTy, ExprValueKind VK, 2276f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall CastKind kind, Expr *op, unsigned PathSize, 2277f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall TypeSourceInfo *writtenTy) 2278f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall : CastExpr(SC, exprTy, VK, kind, op, PathSize), TInfo(writtenTy) {} 227949badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor 2280db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor /// \brief Construct an empty explicit cast. 2281f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall ExplicitCastExpr(StmtClass SC, EmptyShell Shell, unsigned PathSize) 2282f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall : CastExpr(SC, Shell, PathSize) { } 2283db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor 228449badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregorpublic: 22859d125033a9853f3b572a4c9e2f9e2d4e5e346973John McCall /// getTypeInfoAsWritten - Returns the type source info for the type 22869d125033a9853f3b572a4c9e2f9e2d4e5e346973John McCall /// that this expression is casting to. 22879d125033a9853f3b572a4c9e2f9e2d4e5e346973John McCall TypeSourceInfo *getTypeInfoAsWritten() const { return TInfo; } 22889d125033a9853f3b572a4c9e2f9e2d4e5e346973John McCall void setTypeInfoAsWritten(TypeSourceInfo *writtenTy) { TInfo = writtenTy; } 22899d125033a9853f3b572a4c9e2f9e2d4e5e346973John McCall 229049badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor /// getTypeAsWritten - Returns the type that this expression is 229149badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor /// casting to, as written in the source code. 22929d125033a9853f3b572a4c9e2f9e2d4e5e346973John McCall QualType getTypeAsWritten() const { return TInfo->getType(); } 229349badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor 22941eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 22954bfe1968410ea8ffe3b4f629addd7c4bcf484765Sean Hunt return T->getStmtClass() >= firstExplicitCastExprConstant && 22964bfe1968410ea8ffe3b4f629addd7c4bcf484765Sean Hunt T->getStmtClass() <= lastExplicitCastExprConstant; 229749badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor } 229849badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor static bool classof(const ExplicitCastExpr *) { return true; } 229949badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor}; 230049badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor 23016eec8e883de118b431e3ead5b1e604a6ac68ff6bDouglas Gregor/// CStyleCastExpr - An explicit cast in C (C99 6.5.4) or a C-style 230249badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// cast in C++ (C++ [expr.cast]), which uses the syntax 230349badde06e066d058d6c7fcf4e628a72999b65a9Douglas Gregor/// (Type)expr. For example: @c (int)f. 23046eec8e883de118b431e3ead5b1e604a6ac68ff6bDouglas Gregorclass CStyleCastExpr : public ExplicitCastExpr { 2305b2f9e516327310d95840d442416084508f80c183Steve Naroff SourceLocation LPLoc; // the location of the left paren 2306b2f9e516327310d95840d442416084508f80c183Steve Naroff SourceLocation RPLoc; // the location of the right paren 2307f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall 2308f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall CStyleCastExpr(QualType exprTy, ExprValueKind vk, CastKind kind, Expr *op, 2309f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall unsigned PathSize, TypeSourceInfo *writtenTy, 231041b2dcd465f1e438502c420effc9d0c747f9db8fAnders Carlsson SourceLocation l, SourceLocation r) 2311f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall : ExplicitCastExpr(CStyleCastExprClass, exprTy, vk, kind, op, PathSize, 231241b2dcd465f1e438502c420effc9d0c747f9db8fAnders Carlsson writtenTy), LPLoc(l), RPLoc(r) {} 231349b4526992a8c8a6a290aa3efa9828154a24af8dSteve Naroff 2314db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor /// \brief Construct an empty C-style explicit cast. 2315f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall explicit CStyleCastExpr(EmptyShell Shell, unsigned PathSize) 2316f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall : ExplicitCastExpr(CStyleCastExprClass, Shell, PathSize) { } 2317f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall 2318f871d0cc377a1367b519a6cce26be74607566ebaJohn McCallpublic: 2319f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall static CStyleCastExpr *Create(ASTContext &Context, QualType T, 2320f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall ExprValueKind VK, CastKind K, 2321f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall Expr *Op, const CXXCastPath *BasePath, 2322f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall TypeSourceInfo *WrittenTy, SourceLocation L, 2323f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall SourceLocation R); 2324f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall 2325f871d0cc377a1367b519a6cce26be74607566ebaJohn McCall static CStyleCastExpr *CreateEmpty(ASTContext &Context, unsigned PathSize); 2326db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor 2327b2f9e516327310d95840d442416084508f80c183Steve Naroff SourceLocation getLParenLoc() const { return LPLoc; } 2328db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor void setLParenLoc(SourceLocation L) { LPLoc = L; } 2329db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor 2330b2f9e516327310d95840d442416084508f80c183Steve Naroff SourceLocation getRParenLoc() const { return RPLoc; } 2331db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor void setRParenLoc(SourceLocation L) { RPLoc = L; } 2332db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor 23335f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer virtual SourceRange getSourceRange() const { 2334b2f9e516327310d95840d442416084508f80c183Steve Naroff return SourceRange(LPLoc, getSubExpr()->getSourceRange().getEnd()); 23355f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 23361eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 23371eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == CStyleCastExprClass; 23385f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 23396eec8e883de118b431e3ead5b1e604a6ac68ff6bDouglas Gregor static bool classof(const CStyleCastExpr *) { return true; } 23405f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 23415f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 23423fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// \brief A builtin binary operation expression such as "x + y" or "x <= y". 23433fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// 23443fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// This expression node kind describes a builtin binary operation, 23453fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// such as "x + y" for integer values "x" and "y". The operands will 23463fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// already have been converted to appropriate types (e.g., by 23473fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// performing promotions or conversions). 23483fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// 23493fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// In C++, where operators may be overloaded, a different kind of 23503fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// expression node (CXXOperatorCallExpr) is used to express the 23513fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// invocation of an overloaded operator with operator syntax. Within 23523fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// a C++ template, whether BinaryOperator or CXXOperatorCallExpr is 23533fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// used to store an expression "x + y" depends on the subexpressions 23543fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// for x and y. If neither x or y is type-dependent, and the "+" 23553fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// operator resolves to a built-in operation, BinaryOperator will be 23563fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// used to express the computation (x and y may still be 23573fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// value-dependent). If either x or y is type-dependent, or if the 23583fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// "+" resolves to an overloaded operator, CXXOperatorCallExpr will 23593fd95ce225393fe4a3623e429766a8c3f487ff9dDouglas Gregor/// be used to express the computation. 23605f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass BinaryOperator : public Expr { 23615f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 23625baba9d98364a3525d6afa15a04cdad82fd6dd30John McCall typedef BinaryOperatorKind Opcode; 23635baba9d98364a3525d6afa15a04cdad82fd6dd30John McCall 236417d1b2ac9f8371a0a2e79d4f8e0008658164f080Chris Lattnerprivate: 23650799c53fc2bb7acf937c8a8e165033dba1a5aba3John McCall unsigned Opc : 6; 23660799c53fc2bb7acf937c8a8e165033dba1a5aba3John McCall SourceLocation OpLoc; 23670799c53fc2bb7acf937c8a8e165033dba1a5aba3John McCall 236817d1b2ac9f8371a0a2e79d4f8e0008658164f080Chris Lattner enum { LHS, RHS, END_EXPR }; 23695549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Stmt* SubExprs[END_EXPR]; 23701eb4433ac451dc16f4133a88af2d002ac26c58efMike Stumppublic: 23711eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 237217d1b2ac9f8371a0a2e79d4f8e0008658164f080Chris Lattner BinaryOperator(Expr *lhs, Expr *rhs, Opcode opc, QualType ResTy, 2373f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall ExprValueKind VK, ExprObjectKind OK, 237417d1b2ac9f8371a0a2e79d4f8e0008658164f080Chris Lattner SourceLocation opLoc) 2375f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall : Expr(BinaryOperatorClass, ResTy, VK, OK, 2376898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor lhs->isTypeDependent() || rhs->isTypeDependent(), 2377bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor lhs->isValueDependent() || rhs->isValueDependent(), 2378bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor (lhs->containsUnexpandedParameterPack() || 2379bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor rhs->containsUnexpandedParameterPack())), 2380898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor Opc(opc), OpLoc(opLoc) { 23811237c673c07f9d827129ba02720108816abde562Ted Kremenek SubExprs[LHS] = lhs; 23821237c673c07f9d827129ba02720108816abde562Ted Kremenek SubExprs[RHS] = rhs; 23831eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump assert(!isCompoundAssignmentOp() && 23845f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer "Use ArithAssignBinaryOperator for compound assignments"); 23855f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 23865f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 2387db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor /// \brief Construct an empty binary operator. 23881eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump explicit BinaryOperator(EmptyShell Empty) 23892de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall : Expr(BinaryOperatorClass, Empty), Opc(BO_Comma) { } 2390db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor 239117d1b2ac9f8371a0a2e79d4f8e0008658164f080Chris Lattner SourceLocation getOperatorLoc() const { return OpLoc; } 2392db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor void setOperatorLoc(SourceLocation L) { OpLoc = L; } 2393db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor 23940799c53fc2bb7acf937c8a8e165033dba1a5aba3John McCall Opcode getOpcode() const { return static_cast<Opcode>(Opc); } 2395db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor void setOpcode(Opcode O) { Opc = O; } 2396db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor 23975549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getLHS() const { return cast<Expr>(SubExprs[LHS]); } 2398db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor void setLHS(Expr *E) { SubExprs[LHS] = E; } 23995549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getRHS() const { return cast<Expr>(SubExprs[RHS]); } 2400db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor void setRHS(Expr *E) { SubExprs[RHS] = E; } 2401db600c330a37b1c3ab4533310729910ee188f900Douglas Gregor 24025f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer virtual SourceRange getSourceRange() const { 24035f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return SourceRange(getLHS()->getLocStart(), getRHS()->getLocEnd()); 24045f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 24051eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 24065f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// getOpcodeStr - Turn an Opcode enum value into the punctuation char it 24075f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// corresponds to, e.g. "<<=". 24085f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static const char *getOpcodeStr(Opcode Op); 24095f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 24100799c53fc2bb7acf937c8a8e165033dba1a5aba3John McCall const char *getOpcodeStr() const { return getOpcodeStr(getOpcode()); } 2411a84c02d0f4d63975a1c52b9bb8308d88e9d79352Ted Kremenek 2412063daf6e196c51f162e0485478355d8e280eef5cDouglas Gregor /// \brief Retrieve the binary opcode that corresponds to the given 2413063daf6e196c51f162e0485478355d8e280eef5cDouglas Gregor /// overloaded operator. 2414063daf6e196c51f162e0485478355d8e280eef5cDouglas Gregor static Opcode getOverloadedOpcode(OverloadedOperatorKind OO); 2415063daf6e196c51f162e0485478355d8e280eef5cDouglas Gregor 2416063daf6e196c51f162e0485478355d8e280eef5cDouglas Gregor /// \brief Retrieve the overloaded operator kind that corresponds to 2417063daf6e196c51f162e0485478355d8e280eef5cDouglas Gregor /// the given binary opcode. 2418063daf6e196c51f162e0485478355d8e280eef5cDouglas Gregor static OverloadedOperatorKind getOverloadedOperator(Opcode Opc); 2419063daf6e196c51f162e0485478355d8e280eef5cDouglas Gregor 24205f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer /// predicates to categorize the respective opcodes. 2421200121569dc6cff10a1fb6ed7500098770b9dd25Sebastian Redl bool isPtrMemOp() const { return Opc == BO_PtrMemD || Opc == BO_PtrMemI; } 24222de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall bool isMultiplicativeOp() const { return Opc >= BO_Mul && Opc <= BO_Rem; } 24232de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall static bool isAdditiveOp(Opcode Opc) { return Opc == BO_Add || Opc==BO_Sub; } 24240799c53fc2bb7acf937c8a8e165033dba1a5aba3John McCall bool isAdditiveOp() const { return isAdditiveOp(getOpcode()); } 24252de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall static bool isShiftOp(Opcode Opc) { return Opc == BO_Shl || Opc == BO_Shr; } 24260799c53fc2bb7acf937c8a8e165033dba1a5aba3John McCall bool isShiftOp() const { return isShiftOp(getOpcode()); } 2427aee3c9375f97a49edef2a36f15df6abd9748e2a1Sebastian Redl 24282de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall static bool isBitwiseOp(Opcode Opc) { return Opc >= BO_And && Opc <= BO_Or; } 24290799c53fc2bb7acf937c8a8e165033dba1a5aba3John McCall bool isBitwiseOp() const { return isBitwiseOp(getOpcode()); } 2430f2da7a06f6b98c3886d9b871ab839f5085b1c238Ted Kremenek 24312de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall static bool isRelationalOp(Opcode Opc) { return Opc >= BO_LT && Opc<=BO_GE; } 24320799c53fc2bb7acf937c8a8e165033dba1a5aba3John McCall bool isRelationalOp() const { return isRelationalOp(getOpcode()); } 2433f2da7a06f6b98c3886d9b871ab839f5085b1c238Ted Kremenek 24342de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall static bool isEqualityOp(Opcode Opc) { return Opc == BO_EQ || Opc == BO_NE; } 24350799c53fc2bb7acf937c8a8e165033dba1a5aba3John McCall bool isEqualityOp() const { return isEqualityOp(getOpcode()); } 24361eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 24372de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall static bool isComparisonOp(Opcode Opc) { return Opc >= BO_LT && Opc<=BO_NE; } 24380799c53fc2bb7acf937c8a8e165033dba1a5aba3John McCall bool isComparisonOp() const { return isComparisonOp(getOpcode()); } 2439aee3c9375f97a49edef2a36f15df6abd9748e2a1Sebastian Redl 24402de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall static bool isLogicalOp(Opcode Opc) { return Opc == BO_LAnd || Opc==BO_LOr; } 24410799c53fc2bb7acf937c8a8e165033dba1a5aba3John McCall bool isLogicalOp() const { return isLogicalOp(getOpcode()); } 2442f2da7a06f6b98c3886d9b871ab839f5085b1c238Ted Kremenek 24430e800c9c20d1a658a91096c756c4a4a9e90264fcJohn McCall static bool isAssignmentOp(Opcode Opc) { 24440e800c9c20d1a658a91096c756c4a4a9e90264fcJohn McCall return Opc >= BO_Assign && Opc <= BO_OrAssign; 24450e800c9c20d1a658a91096c756c4a4a9e90264fcJohn McCall } 24460e800c9c20d1a658a91096c756c4a4a9e90264fcJohn McCall bool isAssignmentOp() const { return isAssignmentOp(getOpcode()); } 24470e800c9c20d1a658a91096c756c4a4a9e90264fcJohn McCall 24480e800c9c20d1a658a91096c756c4a4a9e90264fcJohn McCall static bool isCompoundAssignmentOp(Opcode Opc) { 24492de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall return Opc > BO_Assign && Opc <= BO_OrAssign; 24502de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall } 24510e800c9c20d1a658a91096c756c4a4a9e90264fcJohn McCall bool isCompoundAssignmentOp() const { 24520e800c9c20d1a658a91096c756c4a4a9e90264fcJohn McCall return isCompoundAssignmentOp(getOpcode()); 24530e800c9c20d1a658a91096c756c4a4a9e90264fcJohn McCall } 24540e800c9c20d1a658a91096c756c4a4a9e90264fcJohn McCall 24550e800c9c20d1a658a91096c756c4a4a9e90264fcJohn McCall static bool isShiftAssignOp(Opcode Opc) { 24562de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall return Opc == BO_ShlAssign || Opc == BO_ShrAssign; 24572de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall } 24580e800c9c20d1a658a91096c756c4a4a9e90264fcJohn McCall bool isShiftAssignOp() const { 24590e800c9c20d1a658a91096c756c4a4a9e90264fcJohn McCall return isShiftAssignOp(getOpcode()); 24600e800c9c20d1a658a91096c756c4a4a9e90264fcJohn McCall } 24611eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 24621eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *S) { 24634bfe1968410ea8ffe3b4f629addd7c4bcf484765Sean Hunt return S->getStmtClass() >= firstBinaryOperatorConstant && 24644bfe1968410ea8ffe3b4f629addd7c4bcf484765Sean Hunt S->getStmtClass() <= lastBinaryOperatorConstant; 24655f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 24665f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const BinaryOperator *) { return true; } 24671237c673c07f9d827129ba02720108816abde562Ted Kremenek 24681237c673c07f9d827129ba02720108816abde562Ted Kremenek // Iterators 24691237c673c07f9d827129ba02720108816abde562Ted Kremenek virtual child_iterator child_begin(); 24701237c673c07f9d827129ba02720108816abde562Ted Kremenek virtual child_iterator child_end(); 24711237c673c07f9d827129ba02720108816abde562Ted Kremenek 24725f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerprotected: 247317d1b2ac9f8371a0a2e79d4f8e0008658164f080Chris Lattner BinaryOperator(Expr *lhs, Expr *rhs, Opcode opc, QualType ResTy, 2474f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall ExprValueKind VK, ExprObjectKind OK, 24752333f7727f97018d6742e1e0938133bcfad967abEli Friedman SourceLocation opLoc, bool dead) 2476f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall : Expr(CompoundAssignOperatorClass, ResTy, VK, OK, 24772333f7727f97018d6742e1e0938133bcfad967abEli Friedman lhs->isTypeDependent() || rhs->isTypeDependent(), 2478bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor lhs->isValueDependent() || rhs->isValueDependent(), 2479bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor (lhs->containsUnexpandedParameterPack() || 2480bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor rhs->containsUnexpandedParameterPack())), 24812333f7727f97018d6742e1e0938133bcfad967abEli Friedman Opc(opc), OpLoc(opLoc) { 24821237c673c07f9d827129ba02720108816abde562Ted Kremenek SubExprs[LHS] = lhs; 24831237c673c07f9d827129ba02720108816abde562Ted Kremenek SubExprs[RHS] = rhs; 24845f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 2485ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor 24861eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump BinaryOperator(StmtClass SC, EmptyShell Empty) 24872de56d1d0c3a504ad1529de2677628bdfbb95cd4John McCall : Expr(SC, Empty), Opc(BO_MulAssign) { } 24885f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 24895f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 24905f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// CompoundAssignOperator - For compound assignments (e.g. +=), we keep 24915f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// track of the type the operation is performed in. Due to the semantics of 24925f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// these operators, the operands are promoted, the aritmetic performed, an 24935f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// implicit conversion back to the result type done, then the assignment takes 24945f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// place. This captures the intermediate type which the computation is done 24955f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// in. 24965f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass CompoundAssignOperator : public BinaryOperator { 2497ab3a852ae713189444dcbf75e70accf1e8c2b7f2Eli Friedman QualType ComputationLHSType; 2498ab3a852ae713189444dcbf75e70accf1e8c2b7f2Eli Friedman QualType ComputationResultType; 24995f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 2500f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall CompoundAssignOperator(Expr *lhs, Expr *rhs, Opcode opc, QualType ResType, 2501f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall ExprValueKind VK, ExprObjectKind OK, 2502f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall QualType CompLHSType, QualType CompResultType, 250317d1b2ac9f8371a0a2e79d4f8e0008658164f080Chris Lattner SourceLocation OpLoc) 2504f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall : BinaryOperator(lhs, rhs, opc, ResType, VK, OK, OpLoc, true), 2505ab3a852ae713189444dcbf75e70accf1e8c2b7f2Eli Friedman ComputationLHSType(CompLHSType), 2506ab3a852ae713189444dcbf75e70accf1e8c2b7f2Eli Friedman ComputationResultType(CompResultType) { 25071eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump assert(isCompoundAssignmentOp() && 25085f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer "Only should be used for compound assignments"); 25095f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 25105f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 2511ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor /// \brief Build an empty compound assignment operator expression. 2512ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor explicit CompoundAssignOperator(EmptyShell Empty) 2513ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor : BinaryOperator(CompoundAssignOperatorClass, Empty) { } 2514ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor 2515ab3a852ae713189444dcbf75e70accf1e8c2b7f2Eli Friedman // The two computation types are the type the LHS is converted 2516ab3a852ae713189444dcbf75e70accf1e8c2b7f2Eli Friedman // to for the computation and the type of the result; the two are 2517ab3a852ae713189444dcbf75e70accf1e8c2b7f2Eli Friedman // distinct in a few cases (specifically, int+=ptr and ptr-=ptr). 2518ab3a852ae713189444dcbf75e70accf1e8c2b7f2Eli Friedman QualType getComputationLHSType() const { return ComputationLHSType; } 2519ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor void setComputationLHSType(QualType T) { ComputationLHSType = T; } 2520ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor 2521ab3a852ae713189444dcbf75e70accf1e8c2b7f2Eli Friedman QualType getComputationResultType() const { return ComputationResultType; } 2522ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor void setComputationResultType(QualType T) { ComputationResultType = T; } 2523ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor 25245f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const CompoundAssignOperator *) { return true; } 25251eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *S) { 25261eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return S->getStmtClass() == CompoundAssignOperatorClass; 25275f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 25285f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 25295f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 25305f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// ConditionalOperator - The ?: operator. Note that LHS may be null when the 25315f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// GNU "missing LHS" extension is in use. 25325f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer/// 25335f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerclass ConditionalOperator : public Expr { 25341237c673c07f9d827129ba02720108816abde562Ted Kremenek enum { COND, LHS, RHS, END_EXPR }; 25355549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Stmt* SubExprs[END_EXPR]; // Left/Middle/Right hand sides. 2536f9b949fecf339a2c9bd97dd11a272c4878f85ce4Fariborz Jahanian Stmt* Save; 253747e1f7c68bf375cac470fdb2b599ddbb395aeb52Douglas Gregor SourceLocation QuestionLoc, ColonLoc; 25385f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 253947e1f7c68bf375cac470fdb2b599ddbb395aeb52Douglas Gregor ConditionalOperator(Expr *cond, SourceLocation QLoc, Expr *lhs, 2540f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall SourceLocation CLoc, Expr *rhs, Expr *save, 25410943168ac126b8047f30f6bd215fbe7db14d61baJohn McCall QualType t, ExprValueKind VK, ExprObjectKind OK) 25420943168ac126b8047f30f6bd215fbe7db14d61baJohn McCall : Expr(ConditionalOperatorClass, t, VK, OK, 2543898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // FIXME: the type of the conditional operator doesn't 2544898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // depend on the type of the conditional, but the standard 2545898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor // seems to imply that it could. File a bug! 2546898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor ((lhs && lhs->isTypeDependent()) || (rhs && rhs->isTypeDependent())), 25471eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump (cond->isValueDependent() || 2548898574e7496ba8fd76290079d3a9d06954992734Douglas Gregor (lhs && lhs->isValueDependent()) || 2549bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor (rhs && rhs->isValueDependent())), 2550bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor (cond->containsUnexpandedParameterPack() || 2551bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor (lhs && lhs->containsUnexpandedParameterPack()) || 2552bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor (rhs && rhs->containsUnexpandedParameterPack()))), 255347e1f7c68bf375cac470fdb2b599ddbb395aeb52Douglas Gregor QuestionLoc(QLoc), 255447e1f7c68bf375cac470fdb2b599ddbb395aeb52Douglas Gregor ColonLoc(CLoc) { 25551237c673c07f9d827129ba02720108816abde562Ted Kremenek SubExprs[COND] = cond; 25561237c673c07f9d827129ba02720108816abde562Ted Kremenek SubExprs[LHS] = lhs; 25571237c673c07f9d827129ba02720108816abde562Ted Kremenek SubExprs[RHS] = rhs; 2558f9b949fecf339a2c9bd97dd11a272c4878f85ce4Fariborz Jahanian Save = save; 25591237c673c07f9d827129ba02720108816abde562Ted Kremenek } 25605f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 2561ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor /// \brief Build an empty conditional operator. 2562ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor explicit ConditionalOperator(EmptyShell Empty) 2563ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor : Expr(ConditionalOperatorClass, Empty) { } 2564ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor 2565395a2abf0028968d85958610e393e067885dc14fTed Kremenek // getCond - Return the expression representing the condition for 2566395a2abf0028968d85958610e393e067885dc14fTed Kremenek // the ?: operator. 25675549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getCond() const { return cast<Expr>(SubExprs[COND]); } 2568ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor void setCond(Expr *E) { SubExprs[COND] = E; } 2569395a2abf0028968d85958610e393e067885dc14fTed Kremenek 2570395a2abf0028968d85958610e393e067885dc14fTed Kremenek // getTrueExpr - Return the subexpression representing the value of the ?: 2571f9b949fecf339a2c9bd97dd11a272c4878f85ce4Fariborz Jahanian // expression if the condition evaluates to true. 2572395a2abf0028968d85958610e393e067885dc14fTed Kremenek Expr *getTrueExpr() const { 2573af9b96828f9126d993c3e155b8453be62013b735Fariborz Jahanian return cast<Expr>(SubExprs[LHS]); 2574395a2abf0028968d85958610e393e067885dc14fTed Kremenek } 25751eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2576ae2777cfe7d21f73e5a4155082fe20197cec62bdNick Lewycky // getFalseExpr - Return the subexpression representing the value of the ?: 2577395a2abf0028968d85958610e393e067885dc14fTed Kremenek // expression if the condition evaluates to false. This is the same as getRHS. 25785549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getFalseExpr() const { return cast<Expr>(SubExprs[RHS]); } 2579f9b949fecf339a2c9bd97dd11a272c4878f85ce4Fariborz Jahanian 2580f9b949fecf339a2c9bd97dd11a272c4878f85ce4Fariborz Jahanian // getSaveExpr - In most cases this value will be null. Except a GCC extension 2581f9b949fecf339a2c9bd97dd11a272c4878f85ce4Fariborz Jahanian // allows the left subexpression to be omitted, and instead of that condition 2582f9b949fecf339a2c9bd97dd11a272c4878f85ce4Fariborz Jahanian // be returned. e.g: x ?: y is shorthand for x ? x : y, except that the 2583f9b949fecf339a2c9bd97dd11a272c4878f85ce4Fariborz Jahanian // expression "x" is only evaluated once. Under this senario, this function 2584f9b949fecf339a2c9bd97dd11a272c4878f85ce4Fariborz Jahanian // returns the original, non-converted condition expression for the ?:operator 2585f9b949fecf339a2c9bd97dd11a272c4878f85ce4Fariborz Jahanian Expr *getSaveExpr() const { return Save? cast<Expr>(Save) : (Expr*)0; } 2586f9b949fecf339a2c9bd97dd11a272c4878f85ce4Fariborz Jahanian 2587f9b949fecf339a2c9bd97dd11a272c4878f85ce4Fariborz Jahanian Expr *getLHS() const { return Save ? 0 : cast<Expr>(SubExprs[LHS]); } 2588ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor void setLHS(Expr *E) { SubExprs[LHS] = E; } 2589ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor 25905549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getRHS() const { return cast<Expr>(SubExprs[RHS]); } 2591ad90e96fb7eed26d5217dd06ba50ecbbbebb59e6Douglas Gregor void setRHS(Expr *E) { SubExprs[RHS] = E; } 25925f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 2593f9b949fecf339a2c9bd97dd11a272c4878f85ce4Fariborz Jahanian Expr *getSAVE() const { return Save? cast<Expr>(Save) : (Expr*)0; } 2594f9b949fecf339a2c9bd97dd11a272c4878f85ce4Fariborz Jahanian void setSAVE(Expr *E) { Save = E; } 2595f9b949fecf339a2c9bd97dd11a272c4878f85ce4Fariborz Jahanian 259647e1f7c68bf375cac470fdb2b599ddbb395aeb52Douglas Gregor SourceLocation getQuestionLoc() const { return QuestionLoc; } 259747e1f7c68bf375cac470fdb2b599ddbb395aeb52Douglas Gregor void setQuestionLoc(SourceLocation L) { QuestionLoc = L; } 259847e1f7c68bf375cac470fdb2b599ddbb395aeb52Douglas Gregor 259947e1f7c68bf375cac470fdb2b599ddbb395aeb52Douglas Gregor SourceLocation getColonLoc() const { return ColonLoc; } 260047e1f7c68bf375cac470fdb2b599ddbb395aeb52Douglas Gregor void setColonLoc(SourceLocation L) { ColonLoc = L; } 260147e1f7c68bf375cac470fdb2b599ddbb395aeb52Douglas Gregor 26025f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer virtual SourceRange getSourceRange() const { 26035f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return SourceRange(getCond()->getLocStart(), getRHS()->getLocEnd()); 26045f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 26051eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 26061eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == ConditionalOperatorClass; 26075f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 26085f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const ConditionalOperator *) { return true; } 26091eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 26101237c673c07f9d827129ba02720108816abde562Ted Kremenek // Iterators 26111237c673c07f9d827129ba02720108816abde562Ted Kremenek virtual child_iterator child_begin(); 26121237c673c07f9d827129ba02720108816abde562Ted Kremenek virtual child_iterator child_end(); 26135f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 26145f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 26156481a57fefbf1a313ff439028470fe4c27a3b7a3Chris Lattner/// AddrLabelExpr - The GNU address of label extension, representing &&label. 26166481a57fefbf1a313ff439028470fe4c27a3b7a3Chris Lattnerclass AddrLabelExpr : public Expr { 26175f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer SourceLocation AmpAmpLoc, LabelLoc; 26185f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer LabelStmt *Label; 26195f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencerpublic: 26206481a57fefbf1a313ff439028470fe4c27a3b7a3Chris Lattner AddrLabelExpr(SourceLocation AALoc, SourceLocation LLoc, LabelStmt *L, 26216481a57fefbf1a313ff439028470fe4c27a3b7a3Chris Lattner QualType t) 2622bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor : Expr(AddrLabelExprClass, t, VK_RValue, OK_Ordinary, false, false, false), 26232333f7727f97018d6742e1e0938133bcfad967abEli Friedman AmpAmpLoc(AALoc), LabelLoc(LLoc), Label(L) {} 26241eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 26257d5c2f241c74e5f8d9ec492e8f9f268e5e9ae41fDouglas Gregor /// \brief Build an empty address of a label expression. 26261eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump explicit AddrLabelExpr(EmptyShell Empty) 26277d5c2f241c74e5f8d9ec492e8f9f268e5e9ae41fDouglas Gregor : Expr(AddrLabelExprClass, Empty) { } 26287d5c2f241c74e5f8d9ec492e8f9f268e5e9ae41fDouglas Gregor 26297d5c2f241c74e5f8d9ec492e8f9f268e5e9ae41fDouglas Gregor SourceLocation getAmpAmpLoc() const { return AmpAmpLoc; } 26307d5c2f241c74e5f8d9ec492e8f9f268e5e9ae41fDouglas Gregor void setAmpAmpLoc(SourceLocation L) { AmpAmpLoc = L; } 26317d5c2f241c74e5f8d9ec492e8f9f268e5e9ae41fDouglas Gregor SourceLocation getLabelLoc() const { return LabelLoc; } 26327d5c2f241c74e5f8d9ec492e8f9f268e5e9ae41fDouglas Gregor void setLabelLoc(SourceLocation L) { LabelLoc = L; } 26337d5c2f241c74e5f8d9ec492e8f9f268e5e9ae41fDouglas Gregor 26345f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer virtual SourceRange getSourceRange() const { 26355f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer return SourceRange(AmpAmpLoc, LabelLoc); 26365f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 26371eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 26385f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer LabelStmt *getLabel() const { return Label; } 26397d5c2f241c74e5f8d9ec492e8f9f268e5e9ae41fDouglas Gregor void setLabel(LabelStmt *S) { Label = S; } 26407d5c2f241c74e5f8d9ec492e8f9f268e5e9ae41fDouglas Gregor 26415f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer static bool classof(const Stmt *T) { 26421eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == AddrLabelExprClass; 26435f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer } 26446481a57fefbf1a313ff439028470fe4c27a3b7a3Chris Lattner static bool classof(const AddrLabelExpr *) { return true; } 26451eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 26461237c673c07f9d827129ba02720108816abde562Ted Kremenek // Iterators 26471237c673c07f9d827129ba02720108816abde562Ted Kremenek virtual child_iterator child_begin(); 26481237c673c07f9d827129ba02720108816abde562Ted Kremenek virtual child_iterator child_end(); 26495f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer}; 2650ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner 2651ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner/// StmtExpr - This is the GNU Statement Expression extension: ({int X=4; X;}). 2652ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner/// The StmtExpr contains a single CompoundStmt node, which it evaluates and 2653ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner/// takes the value of the last subexpression. 2654f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall/// 2655f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall/// A StmtExpr is always an r-value; values "returned" out of a 2656f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall/// StmtExpr will be copied. 2657ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattnerclass StmtExpr : public Expr { 26585549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Stmt *SubStmt; 2659ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner SourceLocation LParenLoc, RParenLoc; 2660ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattnerpublic: 26612333f7727f97018d6742e1e0938133bcfad967abEli Friedman // FIXME: Does type-dependence need to be computed differently? 2662d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroff StmtExpr(CompoundStmt *substmt, QualType T, 2663d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroff SourceLocation lp, SourceLocation rp) : 2664f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall Expr(StmtExprClass, T, VK_RValue, OK_Ordinary, 2665bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor T->isDependentType(), false, false), 26662333f7727f97018d6742e1e0938133bcfad967abEli Friedman SubStmt(substmt), LParenLoc(lp), RParenLoc(rp) { } 26671eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 26686a2dd55b0b3ae376d449a4b07bbb6b2d30b26330Douglas Gregor /// \brief Build an empty statement expression. 26696a2dd55b0b3ae376d449a4b07bbb6b2d30b26330Douglas Gregor explicit StmtExpr(EmptyShell Empty) : Expr(StmtExprClass, Empty) { } 26706a2dd55b0b3ae376d449a4b07bbb6b2d30b26330Douglas Gregor 26715549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek CompoundStmt *getSubStmt() { return cast<CompoundStmt>(SubStmt); } 26725549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek const CompoundStmt *getSubStmt() const { return cast<CompoundStmt>(SubStmt); } 26736a2dd55b0b3ae376d449a4b07bbb6b2d30b26330Douglas Gregor void setSubStmt(CompoundStmt *S) { SubStmt = S; } 26746a2dd55b0b3ae376d449a4b07bbb6b2d30b26330Douglas Gregor 2675ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner virtual SourceRange getSourceRange() const { 2676ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner return SourceRange(LParenLoc, RParenLoc); 2677ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner } 26781eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2679026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner SourceLocation getLParenLoc() const { return LParenLoc; } 26806a2dd55b0b3ae376d449a4b07bbb6b2d30b26330Douglas Gregor void setLParenLoc(SourceLocation L) { LParenLoc = L; } 2681026dc96ac6ece60da5e1b98e2a71bd0ff0939fd8Chris Lattner SourceLocation getRParenLoc() const { return RParenLoc; } 26826a2dd55b0b3ae376d449a4b07bbb6b2d30b26330Douglas Gregor void setRParenLoc(SourceLocation L) { RParenLoc = L; } 26831eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2684ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner static bool classof(const Stmt *T) { 26851eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == StmtExprClass; 2686ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner } 2687ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner static bool classof(const StmtExpr *) { return true; } 26881eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 26891237c673c07f9d827129ba02720108816abde562Ted Kremenek // Iterators 26901237c673c07f9d827129ba02720108816abde562Ted Kremenek virtual child_iterator child_begin(); 26911237c673c07f9d827129ba02720108816abde562Ted Kremenek virtual child_iterator child_end(); 2692ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner}; 2693ab18c4c0ac1a46a38aa84c2c8ea485612e21a614Chris Lattner 2694d34e915f33224c508ad55fbf975bd10b7876e197Steve Naroff 2695d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman/// ShuffleVectorExpr - clang-specific builtin-in function 2696d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman/// __builtin_shufflevector. 2697d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman/// This AST node represents a operator that does a constant 2698d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman/// shuffle, similar to LLVM's shufflevector instruction. It takes 2699d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman/// two vectors and a variable number of constant indices, 2700d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman/// and returns the appropriately shuffled vector. 2701d38617c8a50f9729c254ab76cd359af797c6739bEli Friedmanclass ShuffleVectorExpr : public Expr { 2702d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman SourceLocation BuiltinLoc, RParenLoc; 2703d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman 2704d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman // SubExprs - the list of values passed to the __builtin_shufflevector 2705d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman // function. The first two are vectors, and the rest are constant 2706d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman // indices. The number of values in this list is always 2707d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman // 2+the number of indices in the vector type. 27085549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Stmt **SubExprs; 2709d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman unsigned NumExprs; 2710d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman 2711d38617c8a50f9729c254ab76cd359af797c6739bEli Friedmanpublic: 2712a88dc3079bedf70a5cfc39791727e43a10383006Nate Begeman ShuffleVectorExpr(ASTContext &C, Expr **args, unsigned nexpr, 27131eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump QualType Type, SourceLocation BLoc, 2714bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor SourceLocation RP); 271594cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor 271694cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor /// \brief Build an empty vector-shuffle expression. 27171eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump explicit ShuffleVectorExpr(EmptyShell Empty) 271894cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor : Expr(ShuffleVectorExprClass, Empty), SubExprs(0) { } 271994cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor 272094cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor SourceLocation getBuiltinLoc() const { return BuiltinLoc; } 272194cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor void setBuiltinLoc(SourceLocation L) { BuiltinLoc = L; } 27221eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 272394cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor SourceLocation getRParenLoc() const { return RParenLoc; } 272494cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor void setRParenLoc(SourceLocation L) { RParenLoc = L; } 272594cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor 2726d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman virtual SourceRange getSourceRange() const { 2727d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman return SourceRange(BuiltinLoc, RParenLoc); 2728d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman } 2729d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman static bool classof(const Stmt *T) { 27301eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == ShuffleVectorExprClass; 2731d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman } 2732d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman static bool classof(const ShuffleVectorExpr *) { return true; } 27331eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2734d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman /// getNumSubExprs - Return the size of the SubExprs array. This includes the 2735d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman /// constant expression, the actual arguments passed in, and the function 2736d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman /// pointers. 2737d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman unsigned getNumSubExprs() const { return NumExprs; } 27381eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2739d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman /// getExpr - Return the Expr at the specified index. 2740d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman Expr *getExpr(unsigned Index) { 2741d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman assert((Index < NumExprs) && "Arg access out of range!"); 27425549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek return cast<Expr>(SubExprs[Index]); 2743d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman } 2744d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman const Expr *getExpr(unsigned Index) const { 2745d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman assert((Index < NumExprs) && "Arg access out of range!"); 27465549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek return cast<Expr>(SubExprs[Index]); 2747d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman } 27481eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2749888376a2bbcfc2f047902249f8455918e2489ae1Nate Begeman void setExprs(ASTContext &C, Expr ** Exprs, unsigned NumExprs); 275094cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor 2751dde8c94873976632e3ada4d8d067e1e244184d51Eli Friedman unsigned getShuffleMaskIdx(ASTContext &Ctx, unsigned N) { 2752dde8c94873976632e3ada4d8d067e1e244184d51Eli Friedman assert((N < NumExprs - 2) && "Shuffle idx out of range!"); 27539a901bb63990574ff0bcc12ff851d7a71cff8ddbEli Friedman return getExpr(N+2)->EvaluateAsInt(Ctx).getZExtValue(); 2754d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman } 27551eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2756d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman // Iterators 2757d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman virtual child_iterator child_begin(); 2758d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman virtual child_iterator child_end(); 2759d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman}; 2760d38617c8a50f9729c254ab76cd359af797c6739bEli Friedman 2761d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff/// ChooseExpr - GNU builtin-in function __builtin_choose_expr. 27621eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// This AST node is similar to the conditional operator (?:) in C, with 2763d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff/// the following exceptions: 27647976932a1c256d447316ffac58e9821417725e34Eli Friedman/// - the test expression must be a integer constant expression. 27657976932a1c256d447316ffac58e9821417725e34Eli Friedman/// - the expression returned acts like the chosen subexpression in every 27667976932a1c256d447316ffac58e9821417725e34Eli Friedman/// visible way: the type is the same as that of the chosen subexpression, 27677976932a1c256d447316ffac58e9821417725e34Eli Friedman/// and all predicates (whether it's an l-value, whether it's an integer 27687976932a1c256d447316ffac58e9821417725e34Eli Friedman/// constant expression, etc.) return the same result as for the chosen 27697976932a1c256d447316ffac58e9821417725e34Eli Friedman/// sub-expression. 2770d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroffclass ChooseExpr : public Expr { 27711237c673c07f9d827129ba02720108816abde562Ted Kremenek enum { COND, LHS, RHS, END_EXPR }; 27725549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Stmt* SubExprs[END_EXPR]; // Left/Middle/Right hand sides. 2773d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff SourceLocation BuiltinLoc, RParenLoc; 2774d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroffpublic: 2775f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall ChooseExpr(SourceLocation BLoc, Expr *cond, Expr *lhs, Expr *rhs, 2776f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall QualType t, ExprValueKind VK, ExprObjectKind OK, 2777ce94049b69f75b44c18584fe79cd238978b6b0d5Douglas Gregor SourceLocation RP, bool TypeDependent, bool ValueDependent) 2778bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor : Expr(ChooseExprClass, t, VK, OK, TypeDependent, ValueDependent, 2779bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor (cond->containsUnexpandedParameterPack() || 2780bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor lhs->containsUnexpandedParameterPack() || 2781bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor rhs->containsUnexpandedParameterPack())), 27821237c673c07f9d827129ba02720108816abde562Ted Kremenek BuiltinLoc(BLoc), RParenLoc(RP) { 27831237c673c07f9d827129ba02720108816abde562Ted Kremenek SubExprs[COND] = cond; 27841237c673c07f9d827129ba02720108816abde562Ted Kremenek SubExprs[LHS] = lhs; 27851237c673c07f9d827129ba02720108816abde562Ted Kremenek SubExprs[RHS] = rhs; 27861eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump } 27877976932a1c256d447316ffac58e9821417725e34Eli Friedman 278844cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor /// \brief Build an empty __builtin_choose_expr. 278944cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor explicit ChooseExpr(EmptyShell Empty) : Expr(ChooseExprClass, Empty) { } 279044cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor 27917976932a1c256d447316ffac58e9821417725e34Eli Friedman /// isConditionTrue - Return whether the condition is true (i.e. not 27927976932a1c256d447316ffac58e9821417725e34Eli Friedman /// equal to zero). 279327437caadea35f84d550cd29f024fcf3ea240eecChris Lattner bool isConditionTrue(ASTContext &C) const; 27947976932a1c256d447316ffac58e9821417725e34Eli Friedman 27957976932a1c256d447316ffac58e9821417725e34Eli Friedman /// getChosenSubExpr - Return the subexpression chosen according to the 27967976932a1c256d447316ffac58e9821417725e34Eli Friedman /// condition. 27977976932a1c256d447316ffac58e9821417725e34Eli Friedman Expr *getChosenSubExpr(ASTContext &C) const { 27987976932a1c256d447316ffac58e9821417725e34Eli Friedman return isConditionTrue(C) ? getLHS() : getRHS(); 27997976932a1c256d447316ffac58e9821417725e34Eli Friedman } 28007976932a1c256d447316ffac58e9821417725e34Eli Friedman 28015549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getCond() const { return cast<Expr>(SubExprs[COND]); } 280244cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor void setCond(Expr *E) { SubExprs[COND] = E; } 28035549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getLHS() const { return cast<Expr>(SubExprs[LHS]); } 280444cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor void setLHS(Expr *E) { SubExprs[LHS] = E; } 28055549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getRHS() const { return cast<Expr>(SubExprs[RHS]); } 280644cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor void setRHS(Expr *E) { SubExprs[RHS] = E; } 280744cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor 280844cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor SourceLocation getBuiltinLoc() const { return BuiltinLoc; } 280944cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor void setBuiltinLoc(SourceLocation L) { BuiltinLoc = L; } 28101eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 281144cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor SourceLocation getRParenLoc() const { return RParenLoc; } 281244cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor void setRParenLoc(SourceLocation L) { RParenLoc = L; } 28131237c673c07f9d827129ba02720108816abde562Ted Kremenek 2814d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff virtual SourceRange getSourceRange() const { 2815d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff return SourceRange(BuiltinLoc, RParenLoc); 2816d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff } 2817d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff static bool classof(const Stmt *T) { 28181eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == ChooseExprClass; 2819d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff } 2820d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff static bool classof(const ChooseExpr *) { return true; } 28211eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 28221237c673c07f9d827129ba02720108816abde562Ted Kremenek // Iterators 28231237c673c07f9d827129ba02720108816abde562Ted Kremenek virtual child_iterator child_begin(); 28241237c673c07f9d827129ba02720108816abde562Ted Kremenek virtual child_iterator child_end(); 2825d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff}; 2826d04fdd5f99f985abf2e7b7d7d4d427eebe001e55Steve Naroff 28272d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor/// GNUNullExpr - Implements the GNU __null extension, which is a name 28282d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor/// for a null pointer constant that has integral type (e.g., int or 28292d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor/// long) and is the same size and alignment as a pointer. The __null 28302d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor/// extension is typically only used by system headers, which define 28312d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor/// NULL as __null in C++ rather than using 0 (which is an integer 28322d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor/// that may not match the size of a pointer). 28332d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregorclass GNUNullExpr : public Expr { 28342d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor /// TokenLoc - The location of the __null keyword. 28352d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor SourceLocation TokenLoc; 28362d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor 28372d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregorpublic: 28381eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump GNUNullExpr(QualType Ty, SourceLocation Loc) 2839bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor : Expr(GNUNullExprClass, Ty, VK_RValue, OK_Ordinary, false, false, false), 2840f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall TokenLoc(Loc) { } 28412d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor 284244cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor /// \brief Build an empty GNU __null expression. 284344cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor explicit GNUNullExpr(EmptyShell Empty) : Expr(GNUNullExprClass, Empty) { } 284444cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor 28452d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor /// getTokenLocation - The location of the __null token. 28462d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor SourceLocation getTokenLocation() const { return TokenLoc; } 284744cae0c8669cdf83618cbe7fd36ea7a8e51cf97fDouglas Gregor void setTokenLocation(SourceLocation L) { TokenLoc = L; } 28482d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor 28492d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor virtual SourceRange getSourceRange() const { 28502d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor return SourceRange(TokenLoc); 28512d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor } 28522d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor static bool classof(const Stmt *T) { 28531eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == GNUNullExprClass; 28542d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor } 28552d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor static bool classof(const GNUNullExpr *) { return true; } 28561eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 28572d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor // Iterators 28582d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor virtual child_iterator child_begin(); 28592d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor virtual child_iterator child_end(); 28602d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor}; 28612d8b273470684a9cd47f0ce24743cc1f71ef7cbcDouglas Gregor 286274626d6ef2e194fcc911e071556660ff331eb4a8Zhongxing Xu/// VAArgExpr, used for the builtin function __builtin_va_arg. 28637c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlssonclass VAArgExpr : public Expr { 28645549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Stmt *Val; 28652cad900202561cdda18ea6cc51ddbf3e20e3c23aAbramo Bagnara TypeSourceInfo *TInfo; 28667c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson SourceLocation BuiltinLoc, RParenLoc; 28677c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlssonpublic: 28682cad900202561cdda18ea6cc51ddbf3e20e3c23aAbramo Bagnara VAArgExpr(SourceLocation BLoc, Expr* e, TypeSourceInfo *TInfo, 28692cad900202561cdda18ea6cc51ddbf3e20e3c23aAbramo Bagnara SourceLocation RPLoc, QualType t) 2870f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall : Expr(VAArgExprClass, t, VK_RValue, OK_Ordinary, 2871bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor t->isDependentType(), false, 2872bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor (TInfo->getType()->containsUnexpandedParameterPack() || 2873bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor e->containsUnexpandedParameterPack())), 28742cad900202561cdda18ea6cc51ddbf3e20e3c23aAbramo Bagnara Val(e), TInfo(TInfo), 28757c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson BuiltinLoc(BLoc), 28767c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson RParenLoc(RPLoc) { } 28771eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 287874626d6ef2e194fcc911e071556660ff331eb4a8Zhongxing Xu /// \brief Create an empty __builtin_va_arg expression. 2879d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor explicit VAArgExpr(EmptyShell Empty) : Expr(VAArgExprClass, Empty) { } 2880d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor 28815549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek const Expr *getSubExpr() const { return cast<Expr>(Val); } 28825549976193e34417d4474a5f4a514268ef6666c7Ted Kremenek Expr *getSubExpr() { return cast<Expr>(Val); } 2883d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor void setSubExpr(Expr *E) { Val = E; } 2884d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor 28852cad900202561cdda18ea6cc51ddbf3e20e3c23aAbramo Bagnara TypeSourceInfo *getWrittenTypeInfo() const { return TInfo; } 28862cad900202561cdda18ea6cc51ddbf3e20e3c23aAbramo Bagnara void setWrittenTypeInfo(TypeSourceInfo *TI) { TInfo = TI; } 28872cad900202561cdda18ea6cc51ddbf3e20e3c23aAbramo Bagnara 2888d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor SourceLocation getBuiltinLoc() const { return BuiltinLoc; } 2889d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor void setBuiltinLoc(SourceLocation L) { BuiltinLoc = L; } 28901eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2891d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor SourceLocation getRParenLoc() const { return RParenLoc; } 2892d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor void setRParenLoc(SourceLocation L) { RParenLoc = L; } 2893d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor 28947c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson virtual SourceRange getSourceRange() const { 28957c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson return SourceRange(BuiltinLoc, RParenLoc); 28961eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump } 28977c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson static bool classof(const Stmt *T) { 28987c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson return T->getStmtClass() == VAArgExprClass; 28997c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson } 29007c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson static bool classof(const VAArgExpr *) { return true; } 29011eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 29027c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson // Iterators 29037c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson virtual child_iterator child_begin(); 29041eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump virtual child_iterator child_end(); 29057c50aca2fe36f6daa9bf1c8c428f30e72f96470aAnders Carlsson}; 29061eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 29074c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// @brief Describes an C or C++ initializer list. 29084c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// 29094c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// InitListExpr describes an initializer list, which can be used to 29104c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// initialize objects of different types, including 29114c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// struct/class/union types, arrays, and vectors. For example: 29124c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// 29134c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// @code 29144c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// struct foo x = { 1, { 2, 3 } }; 29154c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// @endcode 2916196ef51bc4d008ec1c69851fb3b0f8d036065931Chris Lattner/// 29174c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// Prior to semantic analysis, an initializer list will represent the 29184c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// initializer list as written by the user, but will have the 29194c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// placeholder type "void". This initializer list is called the 29204c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// syntactic form of the initializer, and may contain C99 designated 29214c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// initializers (represented as DesignatedInitExprs), initializations 29224c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// of subobject members without explicit braces, and so on. Clients 29234c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// interested in the original syntax of the initializer list should 29244c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// use the syntactic form of the initializer list. 2925196ef51bc4d008ec1c69851fb3b0f8d036065931Chris Lattner/// 29264c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// After semantic analysis, the initializer list will represent the 29274c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// semantic form of the initializer, where the initializations of all 29284c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// subobjects are made explicit with nested InitListExpr nodes and 29294c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// C99 designators have been eliminated by placing the designated 29304c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// initializations into the subobject they initialize. Additionally, 29314c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// any "holes" in the initialization, where no initializer has been 29324c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// specified for a particular subobject, will be replaced with 29333498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor/// implicitly-generated ImplicitValueInitExpr expressions that 29344c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// value-initialize the subobjects. Note, however, that the 29354c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// initializer lists may still have fewer initializers than there are 29364c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// elements to initialize within the object. 2937196ef51bc4d008ec1c69851fb3b0f8d036065931Chris Lattner/// 29384c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// Given the semantic form of the initializer list, one can retrieve 29394c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// the original syntactic form of that initializer list (if it 29404c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// exists) using getSyntacticForm(). Since many initializer lists 29414c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// have the same syntactic and semantic forms, getSyntacticForm() may 29424c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// return NULL, indicating that the current initializer list also 29434c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor/// serves as its syntactic form. 294466b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlssonclass InitListExpr : public Expr { 2945ba7bc5584b8d46f4e8deb3a9d363256908fa86eaTed Kremenek // FIXME: Eliminate this vector in favor of ASTContext allocation 2946709210feee317b8d6690dd1d15c2b74cfe55e261Ted Kremenek typedef ASTVector<Stmt *> InitExprsTy; 2947709210feee317b8d6690dd1d15c2b74cfe55e261Ted Kremenek InitExprsTy InitExprs; 294866b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson SourceLocation LBraceLoc, RBraceLoc; 29491eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 29504c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// Contains the initializer list that describes the syntactic form 29514c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// written in the source code. 29524c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor InitListExpr *SyntacticForm; 29534c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor 29540bb76897bedb8b747efc6523efb432fc24966118Douglas Gregor /// If this initializer list initializes a union, specifies which 29550bb76897bedb8b747efc6523efb432fc24966118Douglas Gregor /// field within the union will be initialized. 29560bb76897bedb8b747efc6523efb432fc24966118Douglas Gregor FieldDecl *UnionFieldInit; 29570bb76897bedb8b747efc6523efb432fc24966118Douglas Gregor 2958a9c878086036de36482cc21e35a33cabe9699b0aDouglas Gregor /// Whether this initializer list originally had a GNU array-range 2959a9c878086036de36482cc21e35a33cabe9699b0aDouglas Gregor /// designator in it. This is a temporary marker used by CodeGen. 2960a9c878086036de36482cc21e35a33cabe9699b0aDouglas Gregor bool HadArrayRangeDesignator; 2961a9c878086036de36482cc21e35a33cabe9699b0aDouglas Gregor 296266b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlssonpublic: 2963709210feee317b8d6690dd1d15c2b74cfe55e261Ted Kremenek InitListExpr(ASTContext &C, SourceLocation lbraceloc, 2964709210feee317b8d6690dd1d15c2b74cfe55e261Ted Kremenek Expr **initexprs, unsigned numinits, 2965ba7bc5584b8d46f4e8deb3a9d363256908fa86eaTed Kremenek SourceLocation rbraceloc); 2966d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor 2967d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor /// \brief Build an empty initializer list. 2968709210feee317b8d6690dd1d15c2b74cfe55e261Ted Kremenek explicit InitListExpr(ASTContext &C, EmptyShell Empty) 2969709210feee317b8d6690dd1d15c2b74cfe55e261Ted Kremenek : Expr(InitListExprClass, Empty), InitExprs(C) { } 29701eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2971ba7bc5584b8d46f4e8deb3a9d363256908fa86eaTed Kremenek unsigned getNumInits() const { return InitExprs.size(); } 29721eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 297316c5dea6c2d3e4cf529de9d9b37f6a40441acb2cChris Lattner const Expr *getInit(unsigned Init) const { 2974c5ae899b4bbf65488445316c63168079177db0edSteve Naroff assert(Init < getNumInits() && "Initializer access out of range!"); 29754c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor return cast_or_null<Expr>(InitExprs[Init]); 297666b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson } 29771eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 297816c5dea6c2d3e4cf529de9d9b37f6a40441acb2cChris Lattner Expr *getInit(unsigned Init) { 2979c5ae899b4bbf65488445316c63168079177db0edSteve Naroff assert(Init < getNumInits() && "Initializer access out of range!"); 29804c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor return cast_or_null<Expr>(InitExprs[Init]); 298166b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson } 29821eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 29831eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump void setInit(unsigned Init, Expr *expr) { 2984c5ae899b4bbf65488445316c63168079177db0edSteve Naroff assert(Init < getNumInits() && "Initializer access out of range!"); 29859e8925e72f53a9e2c4633b6b48e965ed01702fe4Steve Naroff InitExprs[Init] = expr; 29869e8925e72f53a9e2c4633b6b48e965ed01702fe4Steve Naroff } 2987c5ae899b4bbf65488445316c63168079177db0edSteve Naroff 2988fa2192042f223b5122a9e17719930f77634fd31fDouglas Gregor /// \brief Reserve space for some number of initializers. 2989709210feee317b8d6690dd1d15c2b74cfe55e261Ted Kremenek void reserveInits(ASTContext &C, unsigned NumInits); 29901eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 29914c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// @brief Specify the number of initializers 29924c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// 29934c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// If there are more than @p NumInits initializers, the remaining 29944c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// initializers will be destroyed. If there are fewer than @p 29954c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// NumInits initializers, NULL expressions will be added for the 29964c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// unknown initializers. 29974c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor void resizeInits(ASTContext &Context, unsigned NumInits); 29984c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor 29994c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// @brief Updates the initializer at index @p Init with the new 30004c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// expression @p expr, and returns the old expression at that 30014c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// location. 30024c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// 30034c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// When @p Init is out of range for this initializer list, the 30044c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// initializer list will be extended with NULL expressions to 30054c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// accomodate the new entry. 3006709210feee317b8d6690dd1d15c2b74cfe55e261Ted Kremenek Expr *updateInit(ASTContext &C, unsigned Init, Expr *expr); 3007c5ae899b4bbf65488445316c63168079177db0edSteve Naroff 30080bb76897bedb8b747efc6523efb432fc24966118Douglas Gregor /// \brief If this initializes a union, specifies which field in the 30090bb76897bedb8b747efc6523efb432fc24966118Douglas Gregor /// union to initialize. 30100bb76897bedb8b747efc6523efb432fc24966118Douglas Gregor /// 30110bb76897bedb8b747efc6523efb432fc24966118Douglas Gregor /// Typically, this field is the first named field within the 30120bb76897bedb8b747efc6523efb432fc24966118Douglas Gregor /// union. However, a designated initializer can specify the 30130bb76897bedb8b747efc6523efb432fc24966118Douglas Gregor /// initialization of a different field within the union. 30140bb76897bedb8b747efc6523efb432fc24966118Douglas Gregor FieldDecl *getInitializedFieldInUnion() { return UnionFieldInit; } 30150bb76897bedb8b747efc6523efb432fc24966118Douglas Gregor void setInitializedFieldInUnion(FieldDecl *FD) { UnionFieldInit = FD; } 30160bb76897bedb8b747efc6523efb432fc24966118Douglas Gregor 3017c5ae899b4bbf65488445316c63168079177db0edSteve Naroff // Explicit InitListExpr's originate from source code (and have valid source 3018c5ae899b4bbf65488445316c63168079177db0edSteve Naroff // locations). Implicit InitListExpr's are created by the semantic analyzer. 3019b3eef68111ffc220e449be96da1747998c057790Douglas Gregor bool isExplicit() { 3020b3eef68111ffc220e449be96da1747998c057790Douglas Gregor return LBraceLoc.isValid() && RBraceLoc.isValid(); 3021b3eef68111ffc220e449be96da1747998c057790Douglas Gregor } 30221eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3023d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor SourceLocation getLBraceLoc() const { return LBraceLoc; } 3024d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor void setLBraceLoc(SourceLocation Loc) { LBraceLoc = Loc; } 3025d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor SourceLocation getRBraceLoc() const { return RBraceLoc; } 302687fd703e097c27d63479cb83b687d4000a22bbb1Douglas Gregor void setRBraceLoc(SourceLocation Loc) { RBraceLoc = Loc; } 302787fd703e097c27d63479cb83b687d4000a22bbb1Douglas Gregor 30284c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// @brief Retrieve the initializer list that describes the 30294c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// syntactic form of the initializer. 30304c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor /// 30311eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /// 30324c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor InitListExpr *getSyntacticForm() const { return SyntacticForm; } 30334c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor void setSyntacticForm(InitListExpr *Init) { SyntacticForm = Init; } 30344c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor 3035a9c878086036de36482cc21e35a33cabe9699b0aDouglas Gregor bool hadArrayRangeDesignator() const { return HadArrayRangeDesignator; } 30361eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump void sawArrayRangeDesignator(bool ARD = true) { 3037d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor HadArrayRangeDesignator = ARD; 3038a9c878086036de36482cc21e35a33cabe9699b0aDouglas Gregor } 3039a9c878086036de36482cc21e35a33cabe9699b0aDouglas Gregor 3040c4ba51f365a3cd3374b3ef87272a9b3e517cd5d3Ted Kremenek virtual SourceRange getSourceRange() const; 3041c4ba51f365a3cd3374b3ef87272a9b3e517cd5d3Ted Kremenek 304266b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson static bool classof(const Stmt *T) { 30431eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == InitListExprClass; 304466b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson } 304566b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson static bool classof(const InitListExpr *) { return true; } 30461eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 304766b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson // Iterators 304866b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson virtual child_iterator child_begin(); 304966b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson virtual child_iterator child_end(); 30501eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3051709210feee317b8d6690dd1d15c2b74cfe55e261Ted Kremenek typedef InitExprsTy::iterator iterator; 30528111a6150cb68a238d55a31f9f4f90869a43f988Zhongxing Xu typedef InitExprsTy::const_iterator const_iterator; 3053709210feee317b8d6690dd1d15c2b74cfe55e261Ted Kremenek typedef InitExprsTy::reverse_iterator reverse_iterator; 30548111a6150cb68a238d55a31f9f4f90869a43f988Zhongxing Xu typedef InitExprsTy::const_reverse_iterator const_reverse_iterator; 30551eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3056ba7bc5584b8d46f4e8deb3a9d363256908fa86eaTed Kremenek iterator begin() { return InitExprs.begin(); } 30578111a6150cb68a238d55a31f9f4f90869a43f988Zhongxing Xu const_iterator begin() const { return InitExprs.begin(); } 3058ba7bc5584b8d46f4e8deb3a9d363256908fa86eaTed Kremenek iterator end() { return InitExprs.end(); } 30598111a6150cb68a238d55a31f9f4f90869a43f988Zhongxing Xu const_iterator end() const { return InitExprs.end(); } 3060ba7bc5584b8d46f4e8deb3a9d363256908fa86eaTed Kremenek reverse_iterator rbegin() { return InitExprs.rbegin(); } 30618111a6150cb68a238d55a31f9f4f90869a43f988Zhongxing Xu const_reverse_iterator rbegin() const { return InitExprs.rbegin(); } 3062ba7bc5584b8d46f4e8deb3a9d363256908fa86eaTed Kremenek reverse_iterator rend() { return InitExprs.rend(); } 30638111a6150cb68a238d55a31f9f4f90869a43f988Zhongxing Xu const_reverse_iterator rend() const { return InitExprs.rend(); } 306466b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson}; 306566b5a8a39088598c01a9fa6f032dc908612dc8ecAnders Carlsson 306605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// @brief Represents a C99 designated initializer expression. 306705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// 306805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// A designated initializer expression (C99 6.7.8) contains one or 306905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// more designators (which can be field designators, array 307005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// designators, or GNU array-range designators) followed by an 307105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// expression that initializes the field or element(s) that the 307205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// designators refer to. For example, given: 30731eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// 307405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// @code 307505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// struct point { 307605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// double x; 307705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// double y; 307805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// }; 307905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// struct point ptarray[10] = { [2].y = 1.0, [2].x = 2.0, [0].x = 1.0 }; 308005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// @endcode 308105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// 308205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// The InitListExpr contains three DesignatedInitExprs, the first of 308305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// which covers @c [2].y=1.0. This DesignatedInitExpr will have two 308405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// designators, one array designator for @c [2] followed by one field 308505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor/// designator for @c .y. The initalization expression will be 1.0. 308605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregorclass DesignatedInitExpr : public Expr { 3087ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregorpublic: 3088ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor /// \brief Forward declaration of the Designator class. 3089ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor class Designator; 3090ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor 3091ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregorprivate: 309205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// The location of the '=' or ':' prior to the actual initializer 309305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// expression. 309405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor SourceLocation EqualOrColonLoc; 309505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 3096eeae8f072748affce25ab4064982626361293390Douglas Gregor /// Whether this designated initializer used the GNU deprecated 309705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// syntax rather than the C99 '=' syntax. 3098eeae8f072748affce25ab4064982626361293390Douglas Gregor bool GNUSyntax : 1; 309905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 310005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// The number of designators in this initializer expression. 310105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor unsigned NumDesignators : 15; 310205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 3103ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor /// \brief The designators in this designated initialization 3104ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor /// expression. 3105ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor Designator *Designators; 3106ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor 310705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// The number of subexpressions of this initializer expression, 310805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// which contains both the initializer and any additional 310905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// expressions used by array and array-range designators. 311005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor unsigned NumSubExprs : 16; 311105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 3112ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor 3113319d57f21600dd2c4d52ccc27bd12ce260b174e7Douglas Gregor DesignatedInitExpr(ASTContext &C, QualType Ty, unsigned NumDesignators, 3114ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor const Designator *Designators, 3115eeae8f072748affce25ab4064982626361293390Douglas Gregor SourceLocation EqualOrColonLoc, bool GNUSyntax, 31169ea62768fca25d829d80199cf4f8cf0f4dd39251Douglas Gregor Expr **IndexExprs, unsigned NumIndexExprs, 31179ea62768fca25d829d80199cf4f8cf0f4dd39251Douglas Gregor Expr *Init); 311805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 3119d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor explicit DesignatedInitExpr(unsigned NumSubExprs) 3120d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor : Expr(DesignatedInitExprClass, EmptyShell()), 3121d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor NumDesignators(0), Designators(0), NumSubExprs(NumSubExprs) { } 3122d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor 312305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregorpublic: 312405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// A field designator, e.g., ".x". 312505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor struct FieldDesignator { 312605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// Refers to the field that is being initialized. The low bit 312705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// of this field determines whether this is actually a pointer 312805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// to an IdentifierInfo (if 1) or a FieldDecl (if 0). When 312905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// initially constructed, a field designator will store an 313005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// IdentifierInfo*. After semantic analysis has resolved that 313105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// name, the field designator will instead store a FieldDecl*. 313205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor uintptr_t NameOrField; 31331eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 313405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// The location of the '.' in the designated initializer. 313505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor unsigned DotLoc; 31361eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 313705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// The location of the field name in the designated initializer. 313805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor unsigned FieldLoc; 313905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor }; 314005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 314105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// An array or GNU array-range designator, e.g., "[9]" or "[10..15]". 314205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor struct ArrayOrRangeDesignator { 314305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// Location of the first index expression within the designated 314405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// initializer expression's list of subexpressions. 314505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor unsigned Index; 314605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// The location of the '[' starting the array range designator. 314705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor unsigned LBracketLoc; 314805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// The location of the ellipsis separating the start and end 314905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// indices. Only valid for GNU array-range designators. 315005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor unsigned EllipsisLoc; 315105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// The location of the ']' terminating the array range designator. 31521eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump unsigned RBracketLoc; 315305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor }; 315405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 315505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// @brief Represents a single C99 designator. 315605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// 315705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// @todo This class is infuriatingly similar to clang::Designator, 315805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// but minor differences (storing indices vs. storing pointers) 315905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// keep us from reusing it. Try harder, later, to rectify these 316005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// differences. 316105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor class Designator { 316205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// @brief The kind of designator this describes. 316305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor enum { 316405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor FieldDesignator, 316505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor ArrayDesignator, 316605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor ArrayRangeDesignator 316705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } Kind; 316805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 316905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor union { 317005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// A field designator, e.g., ".x". 317105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor struct FieldDesignator Field; 317205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// An array or GNU array-range designator, e.g., "[9]" or "[10..15]". 317305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor struct ArrayOrRangeDesignator ArrayOrRange; 317405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor }; 317505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor friend class DesignatedInitExpr; 317605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 317705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor public: 3178ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor Designator() {} 3179ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor 318005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// @brief Initializes a field designator. 31811eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump Designator(const IdentifierInfo *FieldName, SourceLocation DotLoc, 31821eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump SourceLocation FieldLoc) 318305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor : Kind(FieldDesignator) { 318405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor Field.NameOrField = reinterpret_cast<uintptr_t>(FieldName) | 0x01; 318505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor Field.DotLoc = DotLoc.getRawEncoding(); 318605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor Field.FieldLoc = FieldLoc.getRawEncoding(); 318705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } 318805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 318905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// @brief Initializes an array designator. 31901eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump Designator(unsigned Index, SourceLocation LBracketLoc, 319105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor SourceLocation RBracketLoc) 319205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor : Kind(ArrayDesignator) { 319305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor ArrayOrRange.Index = Index; 319405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor ArrayOrRange.LBracketLoc = LBracketLoc.getRawEncoding(); 319505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor ArrayOrRange.EllipsisLoc = SourceLocation().getRawEncoding(); 319605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor ArrayOrRange.RBracketLoc = RBracketLoc.getRawEncoding(); 319705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } 319805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 319905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// @brief Initializes a GNU array-range designator. 32001eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump Designator(unsigned Index, SourceLocation LBracketLoc, 320105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor SourceLocation EllipsisLoc, SourceLocation RBracketLoc) 320205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor : Kind(ArrayRangeDesignator) { 320305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor ArrayOrRange.Index = Index; 320405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor ArrayOrRange.LBracketLoc = LBracketLoc.getRawEncoding(); 320505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor ArrayOrRange.EllipsisLoc = EllipsisLoc.getRawEncoding(); 320605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor ArrayOrRange.RBracketLoc = RBracketLoc.getRawEncoding(); 320705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } 320805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 320905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor bool isFieldDesignator() const { return Kind == FieldDesignator; } 321005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor bool isArrayDesignator() const { return Kind == ArrayDesignator; } 321105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor bool isArrayRangeDesignator() const { return Kind == ArrayRangeDesignator; } 321205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 321305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor IdentifierInfo * getFieldName(); 321405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 321505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor FieldDecl *getField() { 321605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor assert(Kind == FieldDesignator && "Only valid on a field designator"); 321705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor if (Field.NameOrField & 0x01) 321805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor return 0; 321905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor else 322005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor return reinterpret_cast<FieldDecl *>(Field.NameOrField); 322105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } 322205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 322305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor void setField(FieldDecl *FD) { 322405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor assert(Kind == FieldDesignator && "Only valid on a field designator"); 322505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor Field.NameOrField = reinterpret_cast<uintptr_t>(FD); 322605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } 322705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 322887f55cf59e82f246d8605733e9300d0c5f6830a6Douglas Gregor SourceLocation getDotLoc() const { 322987f55cf59e82f246d8605733e9300d0c5f6830a6Douglas Gregor assert(Kind == FieldDesignator && "Only valid on a field designator"); 323087f55cf59e82f246d8605733e9300d0c5f6830a6Douglas Gregor return SourceLocation::getFromRawEncoding(Field.DotLoc); 323187f55cf59e82f246d8605733e9300d0c5f6830a6Douglas Gregor } 323287f55cf59e82f246d8605733e9300d0c5f6830a6Douglas Gregor 323305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor SourceLocation getFieldLoc() const { 323405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor assert(Kind == FieldDesignator && "Only valid on a field designator"); 323505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor return SourceLocation::getFromRawEncoding(Field.FieldLoc); 323605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } 323705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 323805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor SourceLocation getLBracketLoc() const { 323905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor assert((Kind == ArrayDesignator || Kind == ArrayRangeDesignator) && 324005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor "Only valid on an array or array-range designator"); 324105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor return SourceLocation::getFromRawEncoding(ArrayOrRange.LBracketLoc); 324205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } 324305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 324405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor SourceLocation getRBracketLoc() const { 324505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor assert((Kind == ArrayDesignator || Kind == ArrayRangeDesignator) && 324605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor "Only valid on an array or array-range designator"); 324705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor return SourceLocation::getFromRawEncoding(ArrayOrRange.RBracketLoc); 324805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } 324905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 325005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor SourceLocation getEllipsisLoc() const { 325105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor assert(Kind == ArrayRangeDesignator && 325205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor "Only valid on an array-range designator"); 325305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor return SourceLocation::getFromRawEncoding(ArrayOrRange.EllipsisLoc); 325405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } 32554c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor 3256d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor unsigned getFirstExprIndex() const { 3257d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor assert((Kind == ArrayDesignator || Kind == ArrayRangeDesignator) && 3258d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor "Only valid on an array or array-range designator"); 3259d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor return ArrayOrRange.Index; 3260d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor } 3261d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor 32624c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor SourceLocation getStartLocation() const { 32634c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor if (Kind == FieldDesignator) 32644c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor return getDotLoc().isInvalid()? getFieldLoc() : getDotLoc(); 32654c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor else 32664c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor return getLBracketLoc(); 32674c67834407ca6ab344dcf44fc599ad4938cfa96dDouglas Gregor } 326805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor }; 326905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 32701eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static DesignatedInitExpr *Create(ASTContext &C, Designator *Designators, 327105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor unsigned NumDesignators, 327205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor Expr **IndexExprs, unsigned NumIndexExprs, 327305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor SourceLocation EqualOrColonLoc, 3274eeae8f072748affce25ab4064982626361293390Douglas Gregor bool GNUSyntax, Expr *Init); 327505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 3276d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor static DesignatedInitExpr *CreateEmpty(ASTContext &C, unsigned NumIndexExprs); 3277d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor 327805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// @brief Returns the number of designators in this initializer. 327905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor unsigned size() const { return NumDesignators; } 328005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 328105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor // Iterator access to the designators. 328205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor typedef Designator* designators_iterator; 3283ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor designators_iterator designators_begin() { return Designators; } 32841eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump designators_iterator designators_end() { 32851eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return Designators + NumDesignators; 3286ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor } 328705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 3288cdba6595a61a7bd31f504260abf63c900a759d0fTed Kremenek typedef std::reverse_iterator<designators_iterator> 3289cdba6595a61a7bd31f504260abf63c900a759d0fTed Kremenek reverse_designators_iterator; 3290cdba6595a61a7bd31f504260abf63c900a759d0fTed Kremenek reverse_designators_iterator designators_rbegin() { 3291cdba6595a61a7bd31f504260abf63c900a759d0fTed Kremenek return reverse_designators_iterator(designators_end()); 3292cdba6595a61a7bd31f504260abf63c900a759d0fTed Kremenek } 3293cdba6595a61a7bd31f504260abf63c900a759d0fTed Kremenek reverse_designators_iterator designators_rend() { 3294cdba6595a61a7bd31f504260abf63c900a759d0fTed Kremenek return reverse_designators_iterator(designators_begin()); 3295cdba6595a61a7bd31f504260abf63c900a759d0fTed Kremenek } 3296cdba6595a61a7bd31f504260abf63c900a759d0fTed Kremenek 3297711997184366d584c9c437102cae1e9d9927b986Douglas Gregor Designator *getDesignator(unsigned Idx) { return &designators_begin()[Idx]; } 3298711997184366d584c9c437102cae1e9d9927b986Douglas Gregor 3299c302113179a1c2b1254224ea9b6f5316ceeb375cSean Hunt void setDesignators(ASTContext &C, const Designator *Desigs, 3300319d57f21600dd2c4d52ccc27bd12ce260b174e7Douglas Gregor unsigned NumDesigs); 3301d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor 330205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor Expr *getArrayIndex(const Designator& D); 330305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor Expr *getArrayRangeStart(const Designator& D); 330405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor Expr *getArrayRangeEnd(const Designator& D); 330505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 330605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// @brief Retrieve the location of the '=' that precedes the 330705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// initializer value itself, if present. 330805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor SourceLocation getEqualOrColonLoc() const { return EqualOrColonLoc; } 3309d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor void setEqualOrColonLoc(SourceLocation L) { EqualOrColonLoc = L; } 331005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 331105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// @brief Determines whether this designated initializer used the 3312eeae8f072748affce25ab4064982626361293390Douglas Gregor /// deprecated GNU syntax for designated initializers. 3313eeae8f072748affce25ab4064982626361293390Douglas Gregor bool usesGNUSyntax() const { return GNUSyntax; } 3314d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor void setGNUSyntax(bool GNU) { GNUSyntax = GNU; } 331505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 331605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor /// @brief Retrieve the initializer value. 33171eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump Expr *getInit() const { 331805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor return cast<Expr>(*const_cast<DesignatedInitExpr*>(this)->child_begin()); 331905c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } 332005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 332105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor void setInit(Expr *init) { 332205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor *child_begin() = init; 332305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } 332405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 3325d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor /// \brief Retrieve the total number of subexpressions in this 3326d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor /// designated initializer expression, including the actual 3327d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor /// initialized value and any expressions that occur within array 3328d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor /// and array-range designators. 3329d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor unsigned getNumSubExprs() const { return NumSubExprs; } 3330d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor 3331d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor Expr *getSubExpr(unsigned Idx) { 3332d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor assert(Idx < NumSubExprs && "Subscript out of range"); 3333d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor char* Ptr = static_cast<char*>(static_cast<void *>(this)); 3334d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor Ptr += sizeof(DesignatedInitExpr); 3335d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor return reinterpret_cast<Expr**>(reinterpret_cast<void**>(Ptr))[Idx]; 3336d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor } 3337d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor 3338d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor void setSubExpr(unsigned Idx, Expr *E) { 3339d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor assert(Idx < NumSubExprs && "Subscript out of range"); 3340d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor char* Ptr = static_cast<char*>(static_cast<void *>(this)); 3341d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor Ptr += sizeof(DesignatedInitExpr); 3342d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor reinterpret_cast<Expr**>(reinterpret_cast<void**>(Ptr))[Idx] = E; 3343d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor } 3344d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor 3345ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor /// \brief Replaces the designator at index @p Idx with the series 3346ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor /// of designators in [First, Last). 3347319d57f21600dd2c4d52ccc27bd12ce260b174e7Douglas Gregor void ExpandDesignator(ASTContext &C, unsigned Idx, const Designator *First, 3348ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor const Designator *Last); 3349ffb4b6e299069139908540ce97be4462e16b53a4Douglas Gregor 335005c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor virtual SourceRange getSourceRange() const; 335105c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 335205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor static bool classof(const Stmt *T) { 33531eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == DesignatedInitExprClass; 335405c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor } 335505c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor static bool classof(const DesignatedInitExpr *) { return true; } 335605c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 335705c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor // Iterators 335805c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor virtual child_iterator child_begin(); 33591eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump virtual child_iterator child_end(); 33603498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor}; 33613498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor 33623498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor/// \brief Represents an implicitly-generated value initialization of 33633498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor/// an object of a given type. 33643498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor/// 33651a51b4a11b7db25cac2134249711ecaaf9d1c0a8Douglas Gregor/// Implicit value initializations occur within semantic initializer 33661a51b4a11b7db25cac2134249711ecaaf9d1c0a8Douglas Gregor/// list expressions (InitListExpr) as placeholders for subobject 33673498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor/// initializations not explicitly specified by the user. 33681a51b4a11b7db25cac2134249711ecaaf9d1c0a8Douglas Gregor/// 33691a51b4a11b7db25cac2134249711ecaaf9d1c0a8Douglas Gregor/// \see InitListExpr 33701eb4433ac451dc16f4133a88af2d002ac26c58efMike Stumpclass ImplicitValueInitExpr : public Expr { 33713498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregorpublic: 33721eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump explicit ImplicitValueInitExpr(QualType ty) 3373f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall : Expr(ImplicitValueInitExprClass, ty, VK_RValue, OK_Ordinary, 3374bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor false, false, false) { } 33753498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor 3376d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor /// \brief Construct an empty implicit value initialization. 3377d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor explicit ImplicitValueInitExpr(EmptyShell Empty) 3378d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor : Expr(ImplicitValueInitExprClass, Empty) { } 3379d077d759d0c7fceee98f4e77b6423a3f11cfc849Douglas Gregor 33801eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 33813498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor return T->getStmtClass() == ImplicitValueInitExprClass; 33823498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor } 33833498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor static bool classof(const ImplicitValueInitExpr *) { return true; } 33843498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor 33853498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor virtual SourceRange getSourceRange() const { 33863498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor return SourceRange(); 33873498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor } 33883498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor 33893498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor // Iterators 33903498bdb9e9cb300de74c7b51c92608e2902b2348Douglas Gregor virtual child_iterator child_begin(); 33911eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump virtual child_iterator child_end(); 339205c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor}; 339305c13a3411782108d65aab3c77b1a231a4963bc0Douglas Gregor 33942ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman 33952ef13e5abef0570a9f567b4671367275c05d4d34Nate Begemanclass ParenListExpr : public Expr { 33962ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman Stmt **Exprs; 33972ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman unsigned NumExprs; 33982ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman SourceLocation LParenLoc, RParenLoc; 33992ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman 34002ef13e5abef0570a9f567b4671367275c05d4d34Nate Begemanpublic: 34011eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump ParenListExpr(ASTContext& C, SourceLocation lparenloc, Expr **exprs, 34022ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman unsigned numexprs, SourceLocation rparenloc); 34032ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman 34042ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman /// \brief Build an empty paren list. 340537bdfe284ad365f753741d1d89c078c148b3f4afArgyrios Kyrtzidis explicit ParenListExpr(EmptyShell Empty) : Expr(ParenListExprClass, Empty) { } 34061eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 34072ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman unsigned getNumExprs() const { return NumExprs; } 34081eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 34091eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump const Expr* getExpr(unsigned Init) const { 34102ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman assert(Init < getNumExprs() && "Initializer access out of range!"); 34112ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman return cast_or_null<Expr>(Exprs[Init]); 34122ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman } 34131eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 34141eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump Expr* getExpr(unsigned Init) { 34152ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman assert(Init < getNumExprs() && "Initializer access out of range!"); 34162ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman return cast_or_null<Expr>(Exprs[Init]); 34172ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman } 34182ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman 341983ddad3ab513f5d73698cf9fbeb4ed3f011bc3b9Douglas Gregor Expr **getExprs() { return reinterpret_cast<Expr **>(Exprs); } 34201eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 34212ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman SourceLocation getLParenLoc() const { return LParenLoc; } 34222ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman SourceLocation getRParenLoc() const { return RParenLoc; } 34232ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman 34242ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman virtual SourceRange getSourceRange() const { 34252ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman return SourceRange(LParenLoc, RParenLoc); 34261eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump } 34272ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman static bool classof(const Stmt *T) { 34281eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == ParenListExprClass; 34292ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman } 34302ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman static bool classof(const ParenListExpr *) { return true; } 34311eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 34322ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman // Iterators 34332ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman virtual child_iterator child_begin(); 34342ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman virtual child_iterator child_end(); 343537bdfe284ad365f753741d1d89c078c148b3f4afArgyrios Kyrtzidis 343660adf4acf40b72227740bf966fb87eebddff3f37Sebastian Redl friend class ASTStmtReader; 34373397c5570369f19b2d6c52e898f708d75ceede1fSebastian Redl friend class ASTStmtWriter; 34382ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman}; 34392ef13e5abef0570a9f567b4671367275c05d4d34Nate Begeman 34401eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 34414eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff//===----------------------------------------------------------------------===// 34424eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff// Clang Extensions 34434eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff//===----------------------------------------------------------------------===// 34444eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff 3445a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner 3446a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner/// ExtVectorElementExpr - This represents access to specific elements of a 3447a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner/// vector, and may occur on the left hand side or right hand side. For example 3448a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner/// the following is legal: "V.xy = V.zw" if V is a 4 element extended vector. 3449a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner/// 345073525de7fd9bdd534382dc89a24f1f76db3e04b9Chris Lattner/// Note that the base may have either vector or pointer to vector type, just 345173525de7fd9bdd534382dc89a24f1f76db3e04b9Chris Lattner/// like a struct field reference. 345273525de7fd9bdd534382dc89a24f1f76db3e04b9Chris Lattner/// 3453a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattnerclass ExtVectorElementExpr : public Expr { 3454a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner Stmt *Base; 3455d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor IdentifierInfo *Accessor; 3456a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner SourceLocation AccessorLoc; 3457a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattnerpublic: 3458f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall ExtVectorElementExpr(QualType ty, ExprValueKind VK, Expr *base, 3459f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall IdentifierInfo &accessor, SourceLocation loc) 34600943168ac126b8047f30f6bd215fbe7db14d61baJohn McCall : Expr(ExtVectorElementExprClass, ty, VK, 34610943168ac126b8047f30f6bd215fbe7db14d61baJohn McCall (VK == VK_RValue ? OK_Ordinary : OK_VectorComponent), 3462bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor base->isTypeDependent(), base->isValueDependent(), 3463bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor base->containsUnexpandedParameterPack()), 3464d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor Base(base), Accessor(&accessor), AccessorLoc(loc) {} 34651eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3466d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor /// \brief Build an empty vector element expression. 3467d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor explicit ExtVectorElementExpr(EmptyShell Empty) 3468d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor : Expr(ExtVectorElementExprClass, Empty) { } 3469d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor 3470a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner const Expr *getBase() const { return cast<Expr>(Base); } 3471a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner Expr *getBase() { return cast<Expr>(Base); } 3472d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor void setBase(Expr *E) { Base = E; } 3473d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor 3474d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor IdentifierInfo &getAccessor() const { return *Accessor; } 3475d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor void setAccessor(IdentifierInfo *II) { Accessor = II; } 3476d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor 3477d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor SourceLocation getAccessorLoc() const { return AccessorLoc; } 3478d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor void setAccessorLoc(SourceLocation L) { AccessorLoc = L; } 3479d3c98a02c73417689deaaa6671ea6df7f2a8a73cDouglas Gregor 3480a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner /// getNumElements - Get the number of components being selected. 3481a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner unsigned getNumElements() const; 34821eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3483a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner /// containsDuplicateElements - Return true if any element access is 3484a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner /// repeated. 3485a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner bool containsDuplicateElements() const; 34861eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3487a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner /// getEncodedElementAccess - Encode the elements accessed into an llvm 3488a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner /// aggregate Constant of ConstantInt(s). 3489a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner void getEncodedElementAccess(llvm::SmallVectorImpl<unsigned> &Elts) const; 34901eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3491a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner virtual SourceRange getSourceRange() const { 3492a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner return SourceRange(getBase()->getLocStart(), AccessorLoc); 3493a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner } 34941eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 34952140e904dbe53657339cb5b1cc13de563ca0d1fcChris Lattner /// isArrow - Return true if the base expression is a pointer to vector, 34962140e904dbe53657339cb5b1cc13de563ca0d1fcChris Lattner /// return false if the base expression is a vector. 34972140e904dbe53657339cb5b1cc13de563ca0d1fcChris Lattner bool isArrow() const; 34981eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 34991eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 35001eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == ExtVectorElementExprClass; 3501a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner } 3502a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner static bool classof(const ExtVectorElementExpr *) { return true; } 35031eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3504a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner // Iterators 3505a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner virtual child_iterator child_begin(); 3506a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner virtual child_iterator child_end(); 3507a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner}; 3508a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner 3509a09f585a7fdbb01b4bf9de3679fd37005379ca66Chris Lattner 351056ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroff/// BlockExpr - Adaptor class for mixing a BlockDecl with expressions. 35119c3c902835ef7d37300463ad47176ec21a67dc8bSteve Naroff/// ^{ statement-body } or ^(int arg1, float arg2){ statement-body } 35124eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroffclass BlockExpr : public Expr { 351356ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroffprotected: 351456ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroff BlockDecl *TheBlock; 3515b83d287bc7f47d36fb0751a481e2ef9308b37252Mike Stump bool HasBlockDeclRefExprs; 35164eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroffpublic: 3517b83d287bc7f47d36fb0751a481e2ef9308b37252Mike Stump BlockExpr(BlockDecl *BD, QualType ty, bool hasBlockDeclRefExprs) 3518f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall : Expr(BlockExprClass, ty, VK_RValue, OK_Ordinary, 3519bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor ty->isDependentType(), false, false), 3520b83d287bc7f47d36fb0751a481e2ef9308b37252Mike Stump TheBlock(BD), HasBlockDeclRefExprs(hasBlockDeclRefExprs) {} 35219c3c902835ef7d37300463ad47176ec21a67dc8bSteve Naroff 352284af7c27cdc615ff917a501d61256b4049383c97Douglas Gregor /// \brief Build an empty block expression. 352384af7c27cdc615ff917a501d61256b4049383c97Douglas Gregor explicit BlockExpr(EmptyShell Empty) : Expr(BlockExprClass, Empty) { } 352484af7c27cdc615ff917a501d61256b4049383c97Douglas Gregor 3525d5cab5435371b8cc74a9e05ebd40b5995ebad149Anders Carlsson const BlockDecl *getBlockDecl() const { return TheBlock; } 352656ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroff BlockDecl *getBlockDecl() { return TheBlock; } 352784af7c27cdc615ff917a501d61256b4049383c97Douglas Gregor void setBlockDecl(BlockDecl *BD) { TheBlock = BD; } 352884af7c27cdc615ff917a501d61256b4049383c97Douglas Gregor 352956ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroff // Convenience functions for probing the underlying BlockDecl. 353056ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroff SourceLocation getCaretLocation() const; 353156ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroff const Stmt *getBody() const; 353256ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroff Stmt *getBody(); 35339c3c902835ef7d37300463ad47176ec21a67dc8bSteve Naroff 35349c3c902835ef7d37300463ad47176ec21a67dc8bSteve Naroff virtual SourceRange getSourceRange() const { 353556ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroff return SourceRange(getCaretLocation(), getBody()->getLocEnd()); 35369c3c902835ef7d37300463ad47176ec21a67dc8bSteve Naroff } 35379c3c902835ef7d37300463ad47176ec21a67dc8bSteve Naroff 353856ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroff /// getFunctionType - Return the underlying function type for this block. 353956ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroff const FunctionType *getFunctionType() const; 354056ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroff 3541b83d287bc7f47d36fb0751a481e2ef9308b37252Mike Stump /// hasBlockDeclRefExprs - Return true iff the block has BlockDeclRefExpr 35425b54b88c4082bb81b8b341b622fda9a85cbd5fadChris Lattner /// inside of the block that reference values outside the block. 3543b83d287bc7f47d36fb0751a481e2ef9308b37252Mike Stump bool hasBlockDeclRefExprs() const { return HasBlockDeclRefExprs; } 354484af7c27cdc615ff917a501d61256b4049383c97Douglas Gregor void setHasBlockDeclRefExprs(bool BDRE) { HasBlockDeclRefExprs = BDRE; } 3545b83d287bc7f47d36fb0751a481e2ef9308b37252Mike Stump 35461eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 35479c3c902835ef7d37300463ad47176ec21a67dc8bSteve Naroff return T->getStmtClass() == BlockExprClass; 35484eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff } 35494eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff static bool classof(const BlockExpr *) { return true; } 35501eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 35514eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff // Iterators 35524eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff virtual child_iterator child_begin(); 35534eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff virtual child_iterator child_end(); 35544eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff}; 35551eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 35564eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff/// BlockDeclRefExpr - A reference to a declared variable, function, 35574eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff/// enum, etc. 35584eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroffclass BlockDeclRefExpr : public Expr { 35591eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump ValueDecl *D; 35604eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff SourceLocation Loc; 35617d5c74ecbbd8719436c071f38657bc8e97ee4a24Fariborz Jahanian bool IsByRef : 1; 35627d5c74ecbbd8719436c071f38657bc8e97ee4a24Fariborz Jahanian bool ConstQualAdded : 1; 356389f9d3a7651d1225f3f56ae3387c83b98a26da00Fariborz Jahanian Stmt *CopyConstructorVal; 35644eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroffpublic: 35652333f7727f97018d6742e1e0938133bcfad967abEli Friedman // FIXME: Fix type/value dependence! 3566f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall BlockDeclRefExpr(ValueDecl *d, QualType t, ExprValueKind VK, 3567f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall SourceLocation l, bool ByRef, bool constAdded = false, 356884ca008a462b515f63871253f494d53c9190363cFariborz Jahanian Stmt *copyConstructorVal = 0) 3569f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall : Expr(BlockDeclRefExprClass, t, VK, OK_Ordinary, 3570bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor (!t.isNull() && t->isDependentType()), false, false), 357152bc56a296b11b4fc6bf5ddf4ded5262f6484bdbFariborz Jahanian D(d), Loc(l), IsByRef(ByRef), 357289f9d3a7651d1225f3f56ae3387c83b98a26da00Fariborz Jahanian ConstQualAdded(constAdded), CopyConstructorVal(copyConstructorVal) {} 357394cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor 357494cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor // \brief Build an empty reference to a declared variable in a 357594cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor // block. 357694cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor explicit BlockDeclRefExpr(EmptyShell Empty) 357794cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor : Expr(BlockDeclRefExprClass, Empty) { } 35781eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 35794eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff ValueDecl *getDecl() { return D; } 35804eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff const ValueDecl *getDecl() const { return D; } 358194cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor void setDecl(ValueDecl *VD) { D = VD; } 358294cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor 358394cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor SourceLocation getLocation() const { return Loc; } 358494cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor void setLocation(SourceLocation L) { Loc = L; } 358594cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor 35864eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff virtual SourceRange getSourceRange() const { return SourceRange(Loc); } 35871eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 35884eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff bool isByRef() const { return IsByRef; } 358994cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor void setByRef(bool BR) { IsByRef = BR; } 35901eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 35917d5c74ecbbd8719436c071f38657bc8e97ee4a24Fariborz Jahanian bool isConstQualAdded() const { return ConstQualAdded; } 35927d5c74ecbbd8719436c071f38657bc8e97ee4a24Fariborz Jahanian void setConstQualAdded(bool C) { ConstQualAdded = C; } 359389f9d3a7651d1225f3f56ae3387c83b98a26da00Fariborz Jahanian 359489f9d3a7651d1225f3f56ae3387c83b98a26da00Fariborz Jahanian const Expr *getCopyConstructorExpr() const 359589f9d3a7651d1225f3f56ae3387c83b98a26da00Fariborz Jahanian { return cast_or_null<Expr>(CopyConstructorVal); } 359689f9d3a7651d1225f3f56ae3387c83b98a26da00Fariborz Jahanian Expr *getCopyConstructorExpr() 359789f9d3a7651d1225f3f56ae3387c83b98a26da00Fariborz Jahanian { return cast_or_null<Expr>(CopyConstructorVal); } 359889f9d3a7651d1225f3f56ae3387c83b98a26da00Fariborz Jahanian void setCopyConstructorExpr(Expr *E) { CopyConstructorVal = E; } 359994cd5d1397bb1a8bcd109602aa38dd787b164c22Douglas Gregor 36001eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump static bool classof(const Stmt *T) { 36011eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return T->getStmtClass() == BlockDeclRefExprClass; 36024eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff } 36034eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff static bool classof(const BlockDeclRefExpr *) { return true; } 36041eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 36054eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff // Iterators 36064eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff virtual child_iterator child_begin(); 36074eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff virtual child_iterator child_end(); 36084eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff}; 36094eb206bebcdab28ababe8df55c6185cec2cdc071Steve Naroff 36107cd7d1ad33fdf49eef83942e8855fe20d95aa1b9John McCall/// OpaqueValueExpr - An expression referring to an opaque object of a 36117cd7d1ad33fdf49eef83942e8855fe20d95aa1b9John McCall/// fixed type and value class. These don't correspond to concrete 36127cd7d1ad33fdf49eef83942e8855fe20d95aa1b9John McCall/// syntax; instead they're used to express operations (usually copy 36137cd7d1ad33fdf49eef83942e8855fe20d95aa1b9John McCall/// operations) on values whose source is generally obvious from 36147cd7d1ad33fdf49eef83942e8855fe20d95aa1b9John McCall/// context. 36157cd7d1ad33fdf49eef83942e8855fe20d95aa1b9John McCallclass OpaqueValueExpr : public Expr { 36167cd7d1ad33fdf49eef83942e8855fe20d95aa1b9John McCall friend class ASTStmtReader; 36177cd7d1ad33fdf49eef83942e8855fe20d95aa1b9John McCallpublic: 3618f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall OpaqueValueExpr(QualType T, ExprValueKind VK, ExprObjectKind OK = OK_Ordinary) 3619f89e55ab1bfb3ea997f8b02997c611a02254eb2dJohn McCall : Expr(OpaqueValueExprClass, T, VK, OK, 3620bebbe0d9b7568ce43a464286bee49429489ef483Douglas Gregor T->isDependentType(), T->isDependentType(), false) { 36217cd7d1ad33fdf49eef83942e8855fe20d95aa1b9John McCall } 36227cd7d1ad33fdf49eef83942e8855fe20d95aa1b9John McCall 36237cd7d1ad33fdf49eef83942e8855fe20d95aa1b9John McCall explicit OpaqueValueExpr(EmptyShell Empty) 36247cd7d1ad33fdf49eef83942e8855fe20d95aa1b9John McCall : Expr(OpaqueValueExprClass, Empty) { } 36257cd7d1ad33fdf49eef83942e8855fe20d95aa1b9John McCall 36267cd7d1ad33fdf49eef83942e8855fe20d95aa1b9John McCall virtual SourceRange getSourceRange() const; 36277cd7d1ad33fdf49eef83942e8855fe20d95aa1b9John McCall virtual child_iterator child_begin(); 36287cd7d1ad33fdf49eef83942e8855fe20d95aa1b9John McCall virtual child_iterator child_end(); 36297cd7d1ad33fdf49eef83942e8855fe20d95aa1b9John McCall 36307cd7d1ad33fdf49eef83942e8855fe20d95aa1b9John McCall static bool classof(const Stmt *T) { 36317cd7d1ad33fdf49eef83942e8855fe20d95aa1b9John McCall return T->getStmtClass() == OpaqueValueExprClass; 36327cd7d1ad33fdf49eef83942e8855fe20d95aa1b9John McCall } 36337cd7d1ad33fdf49eef83942e8855fe20d95aa1b9John McCall static bool classof(const OpaqueValueExpr *) { return true; } 36347cd7d1ad33fdf49eef83942e8855fe20d95aa1b9John McCall}; 36357cd7d1ad33fdf49eef83942e8855fe20d95aa1b9John McCall 36365f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer} // end namespace clang 36375f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer 36385f016e2cb5d11daeb237544de1c5d59f20fe1a6eReid Spencer#endif 3639