16ab3524f72a6e64aa04973fa9433b5559abb3525Douglas Gregor//===-- DeclBase.h - Base Classes for representing declarations -*- C++ -*-===// 20ed844b04ea4387caa4e1cf3dc375d269657536bChris Lattner// 30ed844b04ea4387caa4e1cf3dc375d269657536bChris Lattner// The LLVM Compiler Infrastructure 40ed844b04ea4387caa4e1cf3dc375d269657536bChris Lattner// 50ed844b04ea4387caa4e1cf3dc375d269657536bChris Lattner// This file is distributed under the University of Illinois Open Source 60ed844b04ea4387caa4e1cf3dc375d269657536bChris Lattner// License. See LICENSE.TXT for details. 70ed844b04ea4387caa4e1cf3dc375d269657536bChris Lattner// 80ed844b04ea4387caa4e1cf3dc375d269657536bChris Lattner//===----------------------------------------------------------------------===// 90ed844b04ea4387caa4e1cf3dc375d269657536bChris Lattner// 10b048c9835969c4f7fe06264748be18ed4b442116Chris Lattner// This file defines the Decl and DeclContext interfaces. 110ed844b04ea4387caa4e1cf3dc375d269657536bChris Lattner// 120ed844b04ea4387caa4e1cf3dc375d269657536bChris Lattner//===----------------------------------------------------------------------===// 130ed844b04ea4387caa4e1cf3dc375d269657536bChris Lattner 140ed844b04ea4387caa4e1cf3dc375d269657536bChris Lattner#ifndef LLVM_CLANG_AST_DECLBASE_H 150ed844b04ea4387caa4e1cf3dc375d269657536bChris Lattner#define LLVM_CLANG_AST_DECLBASE_H 160ed844b04ea4387caa4e1cf3dc375d269657536bChris Lattner 172fa67efeaf66a9332c30a026dc1c21bef6c33a6cBenjamin Kramer#include "clang/AST/AttrIterator.h" 18514d3b6b93c83c0841d2f9dd7af8ecc2877fe921Douglas Gregor#include "clang/AST/DeclarationName.h" 19ad2b804faf29042e6c4e331d0987f103f1e2fd31John McCall#include "clang/Basic/Specifiers.h" 20ee219fd5f2776d8dd39d857f87304297b5ed743aChris Lattner#include "llvm/ADT/PointerUnion.h" 21651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines#include "llvm/ADT/iterator_range.h" 22aa49a7d70e58dac2aeb40664ba16d2ea571b8c95Daniel Dunbar#include "llvm/Support/Compiler.h" 23aa49a7d70e58dac2aeb40664ba16d2ea571b8c95Daniel Dunbar#include "llvm/Support/PrettyStackTrace.h" 240ed844b04ea4387caa4e1cf3dc375d269657536bChris Lattner 250ed844b04ea4387caa4e1cf3dc375d269657536bChris Lattnernamespace clang { 269852f58f50b4fc20914fbce5b4454135a42343f4Benjamin Kramerclass ASTMutationListener; 279852f58f50b4fc20914fbce5b4454135a42343f4Benjamin Kramerclass BlockDecl; 28d3bb44f0f1a83cb208d3e61ee80afe6a4d20d2d8Argyrios Kyrtzidisclass CXXRecordDecl; 299852f58f50b4fc20914fbce5b4454135a42343f4Benjamin Kramerclass CompoundStmt; 309852f58f50b4fc20914fbce5b4454135a42343f4Benjamin Kramerclass DeclContext; 319852f58f50b4fc20914fbce5b4454135a42343f4Benjamin Kramerclass DeclarationName; 329852f58f50b4fc20914fbce5b4454135a42343f4Benjamin Kramerclass DependentDiagnostic; 33b048c9835969c4f7fe06264748be18ed4b442116Chris Lattnerclass EnumDecl; 349852f58f50b4fc20914fbce5b4454135a42343f4Benjamin Kramerclass FunctionDecl; 35651f13cea278ec967336033dd032faef0e9fc2ecStephen Hinesclass FunctionType; 366bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hinesenum Linkage : unsigned char; 37dc0705645276258afddb06cdf0fd7c8840251ee0Rafael Espindolaclass LinkageComputer; 389852f58f50b4fc20914fbce5b4454135a42343f4Benjamin Kramerclass LinkageSpecDecl; 39ca2ab45341c448284cf93770018c717810575f86Douglas Gregorclass Module; 409852f58f50b4fc20914fbce5b4454135a42343f4Benjamin Kramerclass NamedDecl; 419852f58f50b4fc20914fbce5b4454135a42343f4Benjamin Kramerclass NamespaceDecl; 420701bbb228dfd87e1fe82a0a4b7b9facfecb43daSteve Naroffclass ObjCCategoryDecl; 430701bbb228dfd87e1fe82a0a4b7b9facfecb43daSteve Naroffclass ObjCCategoryImplDecl; 449852f58f50b4fc20914fbce5b4454135a42343f4Benjamin Kramerclass ObjCContainerDecl; 45bfb498d0996ef049efe9476f2802976fd145cd60Argyrios Kyrtzidisclass ObjCImplDecl; 469852f58f50b4fc20914fbce5b4454135a42343f4Benjamin Kramerclass ObjCImplementationDecl; 479852f58f50b4fc20914fbce5b4454135a42343f4Benjamin Kramerclass ObjCInterfaceDecl; 489852f58f50b4fc20914fbce5b4454135a42343f4Benjamin Kramerclass ObjCMethodDecl; 499852f58f50b4fc20914fbce5b4454135a42343f4Benjamin Kramerclass ObjCProtocolDecl; 509852f58f50b4fc20914fbce5b4454135a42343f4Benjamin Kramerstruct PrintingPolicy; 519852f58f50b4fc20914fbce5b4454135a42343f4Benjamin Kramerclass Stmt; 520c01d18094100db92d38daa923c95661512db203John McCallclass StoredDeclsMap; 539852f58f50b4fc20914fbce5b4454135a42343f4Benjamin Kramerclass TranslationUnitDecl; 549852f58f50b4fc20914fbce5b4454135a42343f4Benjamin Kramerclass UsingDirectiveDecl; 550eda3b31a672ea486fa92b9bc49a2c91be856b53Chris Lattner} 560eda3b31a672ea486fa92b9bc49a2c91be856b53Chris Lattner 570eda3b31a672ea486fa92b9bc49a2c91be856b53Chris Lattnernamespace clang { 580ed844b04ea4387caa4e1cf3dc375d269657536bChris Lattner 590a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor /// \brief Captures the result of checking the availability of a 600a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor /// declaration. 610a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor enum AvailabilityResult { 620a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor AR_Available = 0, 630a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor AR_NotYetIntroduced, 640a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor AR_Deprecated, 650a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor AR_Unavailable 660a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor }; 670a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor 681eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// Decl - This represents one declaration (or definition), e.g. a variable, 691eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump/// typedef, function, struct, etc. 700ed844b04ea4387caa4e1cf3dc375d269657536bChris Lattner/// 710ed844b04ea4387caa4e1cf3dc375d269657536bChris Lattnerclass Decl { 720ed844b04ea4387caa4e1cf3dc375d269657536bChris Lattnerpublic: 7364650af7cc4352c6c67b9bd1bf8ef3ce7471b910Douglas Gregor /// \brief Lists the kind of concrete classes of Decl. 740ed844b04ea4387caa4e1cf3dc375d269657536bChris Lattner enum Kind { 759a55591af3e5506b95a9718e15380129fbfc5ebcSean Hunt#define DECL(DERIVED, BASE) DERIVED, 769a55591af3e5506b95a9718e15380129fbfc5ebcSean Hunt#define ABSTRACT_DECL(DECL) 779a55591af3e5506b95a9718e15380129fbfc5ebcSean Hunt#define DECL_RANGE(BASE, START, END) \ 789a55591af3e5506b95a9718e15380129fbfc5ebcSean Hunt first##BASE = START, last##BASE = END, 799a55591af3e5506b95a9718e15380129fbfc5ebcSean Hunt#define LAST_DECL_RANGE(BASE, START, END) \ 809a55591af3e5506b95a9718e15380129fbfc5ebcSean Hunt first##BASE = START, last##BASE = END 819a55591af3e5506b95a9718e15380129fbfc5ebcSean Hunt#include "clang/AST/DeclNodes.inc" 820ed844b04ea4387caa4e1cf3dc375d269657536bChris Lattner }; 830ed844b04ea4387caa4e1cf3dc375d269657536bChris Lattner 846ad9ac097918fbdeb443ea7b99d4db9e49b28534Chris Lattner /// \brief A placeholder type used to construct an empty shell of a 856ad9ac097918fbdeb443ea7b99d4db9e49b28534Chris Lattner /// decl-derived type that will be filled in later (e.g., by some 866ad9ac097918fbdeb443ea7b99d4db9e49b28534Chris Lattner /// deserialization method). 876ad9ac097918fbdeb443ea7b99d4db9e49b28534Chris Lattner struct EmptyShell { }; 886ad9ac097918fbdeb443ea7b99d4db9e49b28534Chris Lattner 890d6b1640eb4d1a4a0203235cfdfcdaf3335af36dJohn McCall /// IdentifierNamespace - The different namespaces in which 900d6b1640eb4d1a4a0203235cfdfcdaf3335af36dJohn McCall /// declarations may appear. According to C99 6.2.3, there are 910d6b1640eb4d1a4a0203235cfdfcdaf3335af36dJohn McCall /// four namespaces, labels, tags, members and ordinary 920d6b1640eb4d1a4a0203235cfdfcdaf3335af36dJohn McCall /// identifiers. C++ describes lookup completely differently: 930d6b1640eb4d1a4a0203235cfdfcdaf3335af36dJohn McCall /// certain lookups merely "ignore" certain kinds of declarations, 940d6b1640eb4d1a4a0203235cfdfcdaf3335af36dJohn McCall /// usually based on whether the declaration is of a type, etc. 95ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie /// 960d6b1640eb4d1a4a0203235cfdfcdaf3335af36dJohn McCall /// These are meant as bitmasks, so that searches in 970d6b1640eb4d1a4a0203235cfdfcdaf3335af36dJohn McCall /// C++ can look into the "tag" namespace during ordinary lookup. 980d6b1640eb4d1a4a0203235cfdfcdaf3335af36dJohn McCall /// 9907a353c2af3a3c557205466d4f4ed2513462ebfeSebastian Redl /// Decl currently provides 15 bits of IDNS bits. 1000ed844b04ea4387caa4e1cf3dc375d269657536bChris Lattner enum IdentifierNamespace { 1010d6b1640eb4d1a4a0203235cfdfcdaf3335af36dJohn McCall /// Labels, declared with 'x:' and referenced with 'goto x'. 1020d6b1640eb4d1a4a0203235cfdfcdaf3335af36dJohn McCall IDNS_Label = 0x0001, 1030d6b1640eb4d1a4a0203235cfdfcdaf3335af36dJohn McCall 1040d6b1640eb4d1a4a0203235cfdfcdaf3335af36dJohn McCall /// Tags, declared with 'struct foo;' and referenced with 1050d6b1640eb4d1a4a0203235cfdfcdaf3335af36dJohn McCall /// 'struct foo'. All tags are also types. This is what 1060d6b1640eb4d1a4a0203235cfdfcdaf3335af36dJohn McCall /// elaborated-type-specifiers look for in C. 1070d6b1640eb4d1a4a0203235cfdfcdaf3335af36dJohn McCall IDNS_Tag = 0x0002, 1080d6b1640eb4d1a4a0203235cfdfcdaf3335af36dJohn McCall 1090d6b1640eb4d1a4a0203235cfdfcdaf3335af36dJohn McCall /// Types, declared with 'struct foo', typedefs, etc. 1100d6b1640eb4d1a4a0203235cfdfcdaf3335af36dJohn McCall /// This is what elaborated-type-specifiers look for in C++, 1110d6b1640eb4d1a4a0203235cfdfcdaf3335af36dJohn McCall /// but note that it's ill-formed to find a non-tag. 1120d6b1640eb4d1a4a0203235cfdfcdaf3335af36dJohn McCall IDNS_Type = 0x0004, 1130d6b1640eb4d1a4a0203235cfdfcdaf3335af36dJohn McCall 1140d6b1640eb4d1a4a0203235cfdfcdaf3335af36dJohn McCall /// Members, declared with object declarations within tag 1150d6b1640eb4d1a4a0203235cfdfcdaf3335af36dJohn McCall /// definitions. In C, these can only be found by "qualified" 1160d6b1640eb4d1a4a0203235cfdfcdaf3335af36dJohn McCall /// lookup in member expressions. In C++, they're found by 1170d6b1640eb4d1a4a0203235cfdfcdaf3335af36dJohn McCall /// normal lookup. 1180d6b1640eb4d1a4a0203235cfdfcdaf3335af36dJohn McCall IDNS_Member = 0x0008, 1190d6b1640eb4d1a4a0203235cfdfcdaf3335af36dJohn McCall 1200d6b1640eb4d1a4a0203235cfdfcdaf3335af36dJohn McCall /// Namespaces, declared with 'namespace foo {}'. 1210d6b1640eb4d1a4a0203235cfdfcdaf3335af36dJohn McCall /// Lookup for nested-name-specifiers find these. 1220d6b1640eb4d1a4a0203235cfdfcdaf3335af36dJohn McCall IDNS_Namespace = 0x0010, 1230d6b1640eb4d1a4a0203235cfdfcdaf3335af36dJohn McCall 1240d6b1640eb4d1a4a0203235cfdfcdaf3335af36dJohn McCall /// Ordinary names. In C, everything that's not a label, tag, 1250d6b1640eb4d1a4a0203235cfdfcdaf3335af36dJohn McCall /// or member ends up here. 1260d6b1640eb4d1a4a0203235cfdfcdaf3335af36dJohn McCall IDNS_Ordinary = 0x0020, 1270d6b1640eb4d1a4a0203235cfdfcdaf3335af36dJohn McCall 128d4582b8e6d056f5d991f1b8372e89a6aae58feaeJordan Rose /// Objective C \@protocol. 1290d6b1640eb4d1a4a0203235cfdfcdaf3335af36dJohn McCall IDNS_ObjCProtocol = 0x0040, 1300d6b1640eb4d1a4a0203235cfdfcdaf3335af36dJohn McCall 1310d6b1640eb4d1a4a0203235cfdfcdaf3335af36dJohn McCall /// This declaration is a friend function. A friend function 1320d6b1640eb4d1a4a0203235cfdfcdaf3335af36dJohn McCall /// declaration is always in this namespace but may also be in 1330d6b1640eb4d1a4a0203235cfdfcdaf3335af36dJohn McCall /// IDNS_Ordinary if it was previously declared. 1340d6b1640eb4d1a4a0203235cfdfcdaf3335af36dJohn McCall IDNS_OrdinaryFriend = 0x0080, 1350d6b1640eb4d1a4a0203235cfdfcdaf3335af36dJohn McCall 1360d6b1640eb4d1a4a0203235cfdfcdaf3335af36dJohn McCall /// This declaration is a friend class. A friend class 1370d6b1640eb4d1a4a0203235cfdfcdaf3335af36dJohn McCall /// declaration is always in this namespace but may also be in 1380d6b1640eb4d1a4a0203235cfdfcdaf3335af36dJohn McCall /// IDNS_Tag|IDNS_Type if it was previously declared. 1390d6b1640eb4d1a4a0203235cfdfcdaf3335af36dJohn McCall IDNS_TagFriend = 0x0100, 1400d6b1640eb4d1a4a0203235cfdfcdaf3335af36dJohn McCall 1410d6b1640eb4d1a4a0203235cfdfcdaf3335af36dJohn McCall /// This declaration is a using declaration. A using declaration 1420d6b1640eb4d1a4a0203235cfdfcdaf3335af36dJohn McCall /// *introduces* a number of other declarations into the current 1430d6b1640eb4d1a4a0203235cfdfcdaf3335af36dJohn McCall /// scope, and those declarations use the IDNS of their targets, 1440d6b1640eb4d1a4a0203235cfdfcdaf3335af36dJohn McCall /// but the actual using declarations go in this namespace. 14576d326448d7e4c10b2896edc2ee855d1e68d1b88John McCall IDNS_Using = 0x0200, 14676d326448d7e4c10b2896edc2ee855d1e68d1b88John McCall 14776d326448d7e4c10b2896edc2ee855d1e68d1b88John McCall /// This declaration is a C++ operator declared in a non-class 14876d326448d7e4c10b2896edc2ee855d1e68d1b88John McCall /// context. All such operators are also in IDNS_Ordinary. 14976d326448d7e4c10b2896edc2ee855d1e68d1b88John McCall /// C++ lexical operator lookup looks for these. 150a41c97a5d1912ffd184381d269fd8e5a25ee5e59Richard Smith IDNS_NonMemberOperator = 0x0400, 151a41c97a5d1912ffd184381d269fd8e5a25ee5e59Richard Smith 152a41c97a5d1912ffd184381d269fd8e5a25ee5e59Richard Smith /// This declaration is a function-local extern declaration of a 153a41c97a5d1912ffd184381d269fd8e5a25ee5e59Richard Smith /// variable or function. This may also be IDNS_Ordinary if it 154a41c97a5d1912ffd184381d269fd8e5a25ee5e59Richard Smith /// has been declared outside any function. 155a41c97a5d1912ffd184381d269fd8e5a25ee5e59Richard Smith IDNS_LocalExtern = 0x0800 1560ed844b04ea4387caa4e1cf3dc375d269657536bChris Lattner }; 1571eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 15809e2c524a18435211cfbc2fb355f91e1ac43ea89John McCall /// ObjCDeclQualifier - 'Qualifiers' written next to the return and 15909e2c524a18435211cfbc2fb355f91e1ac43ea89John McCall /// parameter types in method declarations. Other than remembering 16009e2c524a18435211cfbc2fb355f91e1ac43ea89John McCall /// them and mangling them into the method's signature string, these 16109e2c524a18435211cfbc2fb355f91e1ac43ea89John McCall /// are ignored by the compiler; they are consumed by certain 16209e2c524a18435211cfbc2fb355f91e1ac43ea89John McCall /// remote-messaging frameworks. 16309e2c524a18435211cfbc2fb355f91e1ac43ea89John McCall /// 16409e2c524a18435211cfbc2fb355f91e1ac43ea89John McCall /// in, inout, and out are mutually exclusive and apply only to 16509e2c524a18435211cfbc2fb355f91e1ac43ea89John McCall /// method parameters. bycopy and byref are mutually exclusive and 16609e2c524a18435211cfbc2fb355f91e1ac43ea89John McCall /// apply only to method parameters (?). oneway applies only to 16709e2c524a18435211cfbc2fb355f91e1ac43ea89John McCall /// results. All of these expect their corresponding parameter to 16809e2c524a18435211cfbc2fb355f91e1ac43ea89John McCall /// have a particular type. None of this is currently enforced by 16909e2c524a18435211cfbc2fb355f91e1ac43ea89John McCall /// clang. 17009e2c524a18435211cfbc2fb355f91e1ac43ea89John McCall /// 17109e2c524a18435211cfbc2fb355f91e1ac43ea89John McCall /// This should be kept in sync with ObjCDeclSpec::ObjCDeclQualifier. 1720ed844b04ea4387caa4e1cf3dc375d269657536bChris Lattner enum ObjCDeclQualifier { 1730ed844b04ea4387caa4e1cf3dc375d269657536bChris Lattner OBJC_TQ_None = 0x0, 1740ed844b04ea4387caa4e1cf3dc375d269657536bChris Lattner OBJC_TQ_In = 0x1, 1750ed844b04ea4387caa4e1cf3dc375d269657536bChris Lattner OBJC_TQ_Inout = 0x2, 1760ed844b04ea4387caa4e1cf3dc375d269657536bChris Lattner OBJC_TQ_Out = 0x4, 1770ed844b04ea4387caa4e1cf3dc375d269657536bChris Lattner OBJC_TQ_Bycopy = 0x8, 1780ed844b04ea4387caa4e1cf3dc375d269657536bChris Lattner OBJC_TQ_Byref = 0x10, 1790ed844b04ea4387caa4e1cf3dc375d269657536bChris Lattner OBJC_TQ_Oneway = 0x20 1800ed844b04ea4387caa4e1cf3dc375d269657536bChris Lattner }; 1811eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 18246cd2186bddc3e046140cb2d56932ee7faf7e3aeDouglas Gregorprotected: 18346cd2186bddc3e046140cb2d56932ee7faf7e3aeDouglas Gregor // Enumeration values used in the bits stored in NextInContextAndBits. 18446cd2186bddc3e046140cb2d56932ee7faf7e3aeDouglas Gregor enum { 18546cd2186bddc3e046140cb2d56932ee7faf7e3aeDouglas Gregor /// \brief Whether this declaration is a top-level declaration (function, 18646cd2186bddc3e046140cb2d56932ee7faf7e3aeDouglas Gregor /// global variable, etc.) that is lexically inside an objc container 18746cd2186bddc3e046140cb2d56932ee7faf7e3aeDouglas Gregor /// definition. 18846cd2186bddc3e046140cb2d56932ee7faf7e3aeDouglas Gregor TopLevelDeclInObjCContainerFlag = 0x01, 18946cd2186bddc3e046140cb2d56932ee7faf7e3aeDouglas Gregor 19046cd2186bddc3e046140cb2d56932ee7faf7e3aeDouglas Gregor /// \brief Whether this declaration is private to the module in which it was 19146cd2186bddc3e046140cb2d56932ee7faf7e3aeDouglas Gregor /// defined. 19246cd2186bddc3e046140cb2d56932ee7faf7e3aeDouglas Gregor ModulePrivateFlag = 0x02 19346cd2186bddc3e046140cb2d56932ee7faf7e3aeDouglas Gregor }; 19446cd2186bddc3e046140cb2d56932ee7faf7e3aeDouglas Gregor 19546cd2186bddc3e046140cb2d56932ee7faf7e3aeDouglas Gregor /// \brief The next declaration within the same lexical 1964afa39deaa245592977136d367251ee2c173dd8dDouglas Gregor /// DeclContext. These pointers form the linked list that is 1974afa39deaa245592977136d367251ee2c173dd8dDouglas Gregor /// traversed via DeclContext's decls_begin()/decls_end(). 19846cd2186bddc3e046140cb2d56932ee7faf7e3aeDouglas Gregor /// 19946cd2186bddc3e046140cb2d56932ee7faf7e3aeDouglas Gregor /// The extra two bits are used for the TopLevelDeclInObjCContainer and 20046cd2186bddc3e046140cb2d56932ee7faf7e3aeDouglas Gregor /// ModulePrivate bits. 20146cd2186bddc3e046140cb2d56932ee7faf7e3aeDouglas Gregor llvm::PointerIntPair<Decl *, 2, unsigned> NextInContextAndBits; 2024afa39deaa245592977136d367251ee2c173dd8dDouglas Gregor 20346cd2186bddc3e046140cb2d56932ee7faf7e3aeDouglas Gregorprivate: 2044afa39deaa245592977136d367251ee2c173dd8dDouglas Gregor friend class DeclContext; 2054afa39deaa245592977136d367251ee2c173dd8dDouglas Gregor 206ee219fd5f2776d8dd39d857f87304297b5ed743aChris Lattner struct MultipleDC { 207ee219fd5f2776d8dd39d857f87304297b5ed743aChris Lattner DeclContext *SemanticDC; 208ee219fd5f2776d8dd39d857f87304297b5ed743aChris Lattner DeclContext *LexicalDC; 209ee219fd5f2776d8dd39d857f87304297b5ed743aChris Lattner }; 2101eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2111eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2124afa39deaa245592977136d367251ee2c173dd8dDouglas Gregor /// DeclCtx - Holds either a DeclContext* or a MultipleDC*. 2134afa39deaa245592977136d367251ee2c173dd8dDouglas Gregor /// For declarations that don't contain C++ scope specifiers, it contains 2144afa39deaa245592977136d367251ee2c173dd8dDouglas Gregor /// the DeclContext where the Decl was declared. 2154afa39deaa245592977136d367251ee2c173dd8dDouglas Gregor /// For declarations with C++ scope specifiers, it contains a MultipleDC* 2164afa39deaa245592977136d367251ee2c173dd8dDouglas Gregor /// with the context where it semantically belongs (SemanticDC) and the 2174afa39deaa245592977136d367251ee2c173dd8dDouglas Gregor /// context where it was lexically declared (LexicalDC). 2184afa39deaa245592977136d367251ee2c173dd8dDouglas Gregor /// e.g.: 2194afa39deaa245592977136d367251ee2c173dd8dDouglas Gregor /// 2204afa39deaa245592977136d367251ee2c173dd8dDouglas Gregor /// namespace A { 2214afa39deaa245592977136d367251ee2c173dd8dDouglas Gregor /// void f(); // SemanticDC == LexicalDC == 'namespace A' 2224afa39deaa245592977136d367251ee2c173dd8dDouglas Gregor /// } 2234afa39deaa245592977136d367251ee2c173dd8dDouglas Gregor /// void A::f(); // SemanticDC == namespace 'A' 2244afa39deaa245592977136d367251ee2c173dd8dDouglas Gregor /// // LexicalDC == global namespace 225ee219fd5f2776d8dd39d857f87304297b5ed743aChris Lattner llvm::PointerUnion<DeclContext*, MultipleDC*> DeclCtx; 2264afa39deaa245592977136d367251ee2c173dd8dDouglas Gregor 227ee219fd5f2776d8dd39d857f87304297b5ed743aChris Lattner inline bool isInSemaDC() const { return DeclCtx.is<DeclContext*>(); } 228ee219fd5f2776d8dd39d857f87304297b5ed743aChris Lattner inline bool isOutOfSemaDC() const { return DeclCtx.is<MultipleDC*>(); } 2294afa39deaa245592977136d367251ee2c173dd8dDouglas Gregor inline MultipleDC *getMultipleDC() const { 230ee219fd5f2776d8dd39d857f87304297b5ed743aChris Lattner return DeclCtx.get<MultipleDC*>(); 2314afa39deaa245592977136d367251ee2c173dd8dDouglas Gregor } 23210d8379676f32b493740a5509e2cd7f0d6433139Chris Lattner inline DeclContext *getSemanticDC() const { 233ee219fd5f2776d8dd39d857f87304297b5ed743aChris Lattner return DeclCtx.get<DeclContext*>(); 23410d8379676f32b493740a5509e2cd7f0d6433139Chris Lattner } 2351eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 236381d34e0b205ca27bcc7e7c1652561941c437965Douglas Gregor /// Loc - The location of this decl. 23739d7650656fdd1be879ed7d0c722cfeae95e56d5Daniel Dunbar SourceLocation Loc; 2381eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2390ed844b04ea4387caa4e1cf3dc375d269657536bChris Lattner /// DeclKind - This indicates which class this is. 240838dc597e25614c653a062a124b06a04d6b7f5ebRafael Espindola unsigned DeclKind : 8; 2411eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2420ed844b04ea4387caa4e1cf3dc375d269657536bChris Lattner /// InvalidDecl - This indicates a semantic error occurred. 24335043e56150dc4eda882acd5ddfe0f8e3c0a8cb1John McCall unsigned InvalidDecl : 1; 2441eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 2450ed844b04ea4387caa4e1cf3dc375d269657536bChris Lattner /// HasAttrs - This indicates whether the decl has attributes or not. 24635043e56150dc4eda882acd5ddfe0f8e3c0a8cb1John McCall unsigned HasAttrs : 1; 247d3bb44f0f1a83cb208d3e61ee80afe6a4d20d2d8Argyrios Kyrtzidis 2486b3945f4bc757bdadd3e443180cf32c2cccb52a0Douglas Gregor /// Implicit - Whether this declaration was implicitly generated by 2496b3945f4bc757bdadd3e443180cf32c2cccb52a0Douglas Gregor /// the implementation rather than explicitly written by the user. 25035043e56150dc4eda882acd5ddfe0f8e3c0a8cb1John McCall unsigned Implicit : 1; 2516b3945f4bc757bdadd3e443180cf32c2cccb52a0Douglas Gregor 252e0762c92110dfdcdd207db461a4ea17afd168f1eDouglas Gregor /// \brief Whether this declaration was "used", meaning that a definition is 253e0762c92110dfdcdd207db461a4ea17afd168f1eDouglas Gregor /// required. 25435043e56150dc4eda882acd5ddfe0f8e3c0a8cb1John McCall unsigned Used : 1; 2559cfbe48a7a20a217fdb2920b29b67ae7941cb116Douglas Gregor 2566b6b42aed07726178f61954ac6e51f47da00275cArgyrios Kyrtzidis /// \brief Whether this declaration was "referenced". 2576b6b42aed07726178f61954ac6e51f47da00275cArgyrios Kyrtzidis /// The difference with 'Used' is whether the reference appears in a 2586b6b42aed07726178f61954ac6e51f47da00275cArgyrios Kyrtzidis /// evaluated context or not, e.g. functions used in uninstantiated templates 2596b6b42aed07726178f61954ac6e51f47da00275cArgyrios Kyrtzidis /// are regarded as "referenced" but not "used". 2606b6b42aed07726178f61954ac6e51f47da00275cArgyrios Kyrtzidis unsigned Referenced : 1; 261ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie 26202892a65b18875a04c7ed5eadb3a13be801ab477Daniel Dunbar /// \brief Whether statistic collection is enabled. 26302892a65b18875a04c7ed5eadb3a13be801ab477Daniel Dunbar static bool StatisticsEnabled; 26402892a65b18875a04c7ed5eadb3a13be801ab477Daniel Dunbar 2659cfbe48a7a20a217fdb2920b29b67ae7941cb116Douglas Gregorprotected: 2667d1d49d2971b20a97b3c2a301470b9eaaa130137Douglas Gregor /// Access - Used by C++ decls for the access specifier. 2677d1d49d2971b20a97b3c2a301470b9eaaa130137Douglas Gregor // NOTE: VC++ treats enums as signed, avoid using the AccessSpecifier enum 2687d1d49d2971b20a97b3c2a301470b9eaaa130137Douglas Gregor unsigned Access : 2; 2697d1d49d2971b20a97b3c2a301470b9eaaa130137Douglas Gregor friend class CXXClassMemberWrapper; 2700b17c61e8f143901ce11b4a6e5129ac63aaeee04Sebastian Redl 27108e0bc16b3312c27e87d33be7dcf3d4fe5bdd2e2Douglas Gregor /// \brief Whether this declaration was loaded from an AST file. 27208e0bc16b3312c27e87d33be7dcf3d4fe5bdd2e2Douglas Gregor unsigned FromASTFile : 1; 273ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie 274f143ffc4a9af79ac1d822fea6995af4bf45d17dcDouglas Gregor /// \brief Whether this declaration is hidden from normal name lookup, e.g., 275f143ffc4a9af79ac1d822fea6995af4bf45d17dcDouglas Gregor /// because it is was loaded from an AST file is either module-private or 276f143ffc4a9af79ac1d822fea6995af4bf45d17dcDouglas Gregor /// because its submodule has not been made visible. 277f143ffc4a9af79ac1d822fea6995af4bf45d17dcDouglas Gregor unsigned Hidden : 1; 278f143ffc4a9af79ac1d822fea6995af4bf45d17dcDouglas Gregor 279769dbdf467681f6020ff248b969c2d41a4fdccd3Chris Lattner /// IdentifierNamespace - This specifies what IDNS_* namespace this lives in. 280381d34e0b205ca27bcc7e7c1652561941c437965Douglas Gregor unsigned IdentifierNamespace : 12; 2811eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 282a99ecbcc4c431d52df0b01539035ab5281d54656Rafael Espindola /// \brief If 0, we have not computed the linkage of this declaration. 283a99ecbcc4c431d52df0b01539035ab5281d54656Rafael Espindola /// Otherwise, it is the linkage + 1. 284a99ecbcc4c431d52df0b01539035ab5281d54656Rafael Espindola mutable unsigned CacheValidAndLinkage : 3; 285ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie 2868d267c57afb3af418ed5281b7a9bb4555d701a82Douglas Gregor friend class ASTDeclWriter; 2878d267c57afb3af418ed5281b7a9bb4555d701a82Douglas Gregor friend class ASTDeclReader; 288ecc2c090e7146c029dd9ee9a5a2fd66b275c01c0Douglas Gregor friend class ASTReader; 289dc0705645276258afddb06cdf0fd7c8840251ee0Rafael Espindola friend class LinkageComputer; 2908d267c57afb3af418ed5281b7a9bb4555d701a82Douglas Gregor 29122050f25e34ba0cd21ee2dc3d765951c48e27cdeRichard Smith template<typename decl_type> friend class Redeclarable; 29222050f25e34ba0cd21ee2dc3d765951c48e27cdeRichard Smith 293651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines /// \brief Allocate memory for a deserialized declaration. 294651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines /// 295651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines /// This routine must be used to allocate memory for any declaration that is 296651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines /// deserialized from a module file. 297651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines /// 298651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines /// \param Size The size of the allocated object. 299651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines /// \param Ctx The context in which we will allocate memory. 300651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines /// \param ID The global ID of the deserialized declaration. 301651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines /// \param Extra The amount of extra space to allocate after the object. 302651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines void *operator new(std::size_t Size, const ASTContext &Ctx, unsigned ID, 303651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines std::size_t Extra = 0); 304651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines 305651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines /// \brief Allocate memory for a non-deserialized declaration. 306651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines void *operator new(std::size_t Size, const ASTContext &Ctx, 307651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines DeclContext *Parent, std::size_t Extra = 0); 308651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines 3099cfbe48a7a20a217fdb2920b29b67ae7941cb116Douglas Gregorprivate: 310651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines bool AccessDeclContextSanity() const; 3111eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 3124afa39deaa245592977136d367251ee2c173dd8dDouglas Gregorprotected: 313d3bb44f0f1a83cb208d3e61ee80afe6a4d20d2d8Argyrios Kyrtzidis 3141eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump Decl(Kind DK, DeclContext *DC, SourceLocation L) 31546cd2186bddc3e046140cb2d56932ee7faf7e3aeDouglas Gregor : NextInContextAndBits(), DeclCtx(DC), 31639d7650656fdd1be879ed7d0c722cfeae95e56d5Daniel Dunbar Loc(L), DeclKind(DK), InvalidDecl(0), 3176b6b42aed07726178f61954ac6e51f47da00275cArgyrios Kyrtzidis HasAttrs(false), Implicit(false), Used(false), Referenced(false), 31846cd2186bddc3e046140cb2d56932ee7faf7e3aeDouglas Gregor Access(AS_none), FromASTFile(0), Hidden(0), 319381d34e0b205ca27bcc7e7c1652561941c437965Douglas Gregor IdentifierNamespace(getIdentifierNamespaceForKind(DK)), 320a99ecbcc4c431d52df0b01539035ab5281d54656Rafael Espindola CacheValidAndLinkage(0) 321381d34e0b205ca27bcc7e7c1652561941c437965Douglas Gregor { 32202892a65b18875a04c7ed5eadb3a13be801ab477Daniel Dunbar if (StatisticsEnabled) add(DK); 3230ed844b04ea4387caa4e1cf3dc375d269657536bChris Lattner } 3241bb19638f2ec0d63ed131b51ca8d9542d1a9afeeSam Bishop 3256764334dfa73d67cbbb1b1fc8fe00440aad00f2aArgyrios Kyrtzidis Decl(Kind DK, EmptyShell Empty) 32646cd2186bddc3e046140cb2d56932ee7faf7e3aeDouglas Gregor : NextInContextAndBits(), DeclKind(DK), InvalidDecl(0), 3276b6b42aed07726178f61954ac6e51f47da00275cArgyrios Kyrtzidis HasAttrs(false), Implicit(false), Used(false), Referenced(false), 32846cd2186bddc3e046140cb2d56932ee7faf7e3aeDouglas Gregor Access(AS_none), FromASTFile(0), Hidden(0), 329381d34e0b205ca27bcc7e7c1652561941c437965Douglas Gregor IdentifierNamespace(getIdentifierNamespaceForKind(DK)), 330a99ecbcc4c431d52df0b01539035ab5281d54656Rafael Espindola CacheValidAndLinkage(0) 331381d34e0b205ca27bcc7e7c1652561941c437965Douglas Gregor { 33202892a65b18875a04c7ed5eadb3a13be801ab477Daniel Dunbar if (StatisticsEnabled) add(DK); 3336764334dfa73d67cbbb1b1fc8fe00440aad00f2aArgyrios Kyrtzidis } 3346764334dfa73d67cbbb1b1fc8fe00440aad00f2aArgyrios Kyrtzidis 335da2142f2e2b3a02ee6eb5de9f9e6ed6f7eb5a0c0Douglas Gregor virtual ~Decl(); 336da2142f2e2b3a02ee6eb5de9f9e6ed6f7eb5a0c0Douglas Gregor 3376bd992946bda92193fadce7e4890d4465d2702f4Douglas Gregor /// \brief Update a potentially out-of-date declaration. 3386bd992946bda92193fadce7e4890d4465d2702f4Douglas Gregor void updateOutOfDate(IdentifierInfo &II) const; 3396bd992946bda92193fadce7e4890d4465d2702f4Douglas Gregor 340a99ecbcc4c431d52df0b01539035ab5281d54656Rafael Espindola Linkage getCachedLinkage() const { 341a99ecbcc4c431d52df0b01539035ab5281d54656Rafael Espindola return Linkage(CacheValidAndLinkage - 1); 342a99ecbcc4c431d52df0b01539035ab5281d54656Rafael Espindola } 343a99ecbcc4c431d52df0b01539035ab5281d54656Rafael Espindola 344a99ecbcc4c431d52df0b01539035ab5281d54656Rafael Espindola void setCachedLinkage(Linkage L) const { 345a99ecbcc4c431d52df0b01539035ab5281d54656Rafael Espindola CacheValidAndLinkage = L + 1; 346a99ecbcc4c431d52df0b01539035ab5281d54656Rafael Espindola } 347a99ecbcc4c431d52df0b01539035ab5281d54656Rafael Espindola 348a99ecbcc4c431d52df0b01539035ab5281d54656Rafael Espindola bool hasCachedLinkage() const { 349a99ecbcc4c431d52df0b01539035ab5281d54656Rafael Espindola return CacheValidAndLinkage; 350a99ecbcc4c431d52df0b01539035ab5281d54656Rafael Espindola } 351a99ecbcc4c431d52df0b01539035ab5281d54656Rafael Espindola 3521bb19638f2ec0d63ed131b51ca8d9542d1a9afeeSam Bishoppublic: 35355d608cbadf1e9c05064f9287c057d50b7df65b4Argyrios Kyrtzidis 35455d608cbadf1e9c05064f9287c057d50b7df65b4Argyrios Kyrtzidis /// \brief Source range that this declaration covers. 355aa49a7d70e58dac2aeb40664ba16d2ea571b8c95Daniel Dunbar virtual SourceRange getSourceRange() const LLVM_READONLY { 356da2142f2e2b3a02ee6eb5de9f9e6ed6f7eb5a0c0Douglas Gregor return SourceRange(getLocation(), getLocation()); 357da2142f2e2b3a02ee6eb5de9f9e6ed6f7eb5a0c0Douglas Gregor } 358aa49a7d70e58dac2aeb40664ba16d2ea571b8c95Daniel Dunbar SourceLocation getLocStart() const LLVM_READONLY { 359aa49a7d70e58dac2aeb40664ba16d2ea571b8c95Daniel Dunbar return getSourceRange().getBegin(); 360aa49a7d70e58dac2aeb40664ba16d2ea571b8c95Daniel Dunbar } 361aa49a7d70e58dac2aeb40664ba16d2ea571b8c95Daniel Dunbar SourceLocation getLocEnd() const LLVM_READONLY { 362aa49a7d70e58dac2aeb40664ba16d2ea571b8c95Daniel Dunbar return getSourceRange().getEnd(); 363aa49a7d70e58dac2aeb40664ba16d2ea571b8c95Daniel Dunbar } 36455d608cbadf1e9c05064f9287c057d50b7df65b4Argyrios Kyrtzidis 3650ed844b04ea4387caa4e1cf3dc375d269657536bChris Lattner SourceLocation getLocation() const { return Loc; } 3660ed844b04ea4387caa4e1cf3dc375d269657536bChris Lattner void setLocation(SourceLocation L) { Loc = L; } 3670ed844b04ea4387caa4e1cf3dc375d269657536bChris Lattner 36835043e56150dc4eda882acd5ddfe0f8e3c0a8cb1John McCall Kind getKind() const { return static_cast<Kind>(DeclKind); } 3690ed844b04ea4387caa4e1cf3dc375d269657536bChris Lattner const char *getDeclKindName() const; 3701eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 37146cd2186bddc3e046140cb2d56932ee7faf7e3aeDouglas Gregor Decl *getNextDeclInContext() { return NextInContextAndBits.getPointer(); } 37246cd2186bddc3e046140cb2d56932ee7faf7e3aeDouglas Gregor const Decl *getNextDeclInContext() const {return NextInContextAndBits.getPointer();} 37396f4468b6b1bf69bb01c1207f716a3ffaeb4a8d3Chris Lattner 3744afa39deaa245592977136d367251ee2c173dd8dDouglas Gregor DeclContext *getDeclContext() { 37510d8379676f32b493740a5509e2cd7f0d6433139Chris Lattner if (isInSemaDC()) 37610d8379676f32b493740a5509e2cd7f0d6433139Chris Lattner return getSemanticDC(); 37710d8379676f32b493740a5509e2cd7f0d6433139Chris Lattner return getMultipleDC()->SemanticDC; 3784afa39deaa245592977136d367251ee2c173dd8dDouglas Gregor } 3790cf2b1990c82121d03a004dafe498ba43bf4b42aChris Lattner const DeclContext *getDeclContext() const { 3800cf2b1990c82121d03a004dafe498ba43bf4b42aChris Lattner return const_cast<Decl*>(this)->getDeclContext(); 3810cf2b1990c82121d03a004dafe498ba43bf4b42aChris Lattner } 3823708b3df2e86998dca4c006939014ea1174da834Argyrios Kyrtzidis 383f5ebf9bf1df10ac15ba32a4b24dfe171b7848c58John McCall /// Find the innermost non-closure ancestor of this declaration, 384f5ebf9bf1df10ac15ba32a4b24dfe171b7848c58John McCall /// walking up through blocks, lambdas, etc. If that ancestor is 385f5ebf9bf1df10ac15ba32a4b24dfe171b7848c58John McCall /// not a code context (!isFunctionOrMethod()), returns null. 386f5ebf9bf1df10ac15ba32a4b24dfe171b7848c58John McCall /// 387f5ebf9bf1df10ac15ba32a4b24dfe171b7848c58John McCall /// A declaration may be its own non-closure context. 388f5ebf9bf1df10ac15ba32a4b24dfe171b7848c58John McCall Decl *getNonClosureContext(); 389f5ebf9bf1df10ac15ba32a4b24dfe171b7848c58John McCall const Decl *getNonClosureContext() const { 390aab9e315184d344bbd733f13b68915d02db7b32bJohn McCall return const_cast<Decl*>(this)->getNonClosureContext(); 391aab9e315184d344bbd733f13b68915d02db7b32bJohn McCall } 392aab9e315184d344bbd733f13b68915d02db7b32bJohn McCall 3933708b3df2e86998dca4c006939014ea1174da834Argyrios Kyrtzidis TranslationUnitDecl *getTranslationUnitDecl(); 3943708b3df2e86998dca4c006939014ea1174da834Argyrios Kyrtzidis const TranslationUnitDecl *getTranslationUnitDecl() const { 3953708b3df2e86998dca4c006939014ea1174da834Argyrios Kyrtzidis return const_cast<Decl*>(this)->getTranslationUnitDecl(); 3963708b3df2e86998dca4c006939014ea1174da834Argyrios Kyrtzidis } 3973708b3df2e86998dca4c006939014ea1174da834Argyrios Kyrtzidis 3989aeed32282fe8a775c24c01c923717ca86695685John McCall bool isInAnonymousNamespace() const; 3999aeed32282fe8a775c24c01c923717ca86695685John McCall 4006bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines bool isInStdNamespace() const; 4016bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines 402aa49a7d70e58dac2aeb40664ba16d2ea571b8c95Daniel Dunbar ASTContext &getASTContext() const LLVM_READONLY; 4031eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4041329c274628cc8c4e8ad472b41d1a78c8123f611Anders Carlsson void setAccess(AccessSpecifier AS) { 4051eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump Access = AS; 406651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines assert(AccessDeclContextSanity()); 4071329c274628cc8c4e8ad472b41d1a78c8123f611Anders Carlsson } 4081eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4091eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump AccessSpecifier getAccess() const { 410651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines assert(AccessDeclContextSanity()); 4111eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump return AccessSpecifier(Access); 412b8547e800f9553a72c2f3635ae2371692bd4411aAnders Carlsson } 4134afa39deaa245592977136d367251ee2c173dd8dDouglas Gregor 414109f5fc8dff6f3bd707e0e4140dc99ef7d4f3e88Douglas Gregor /// \brief Retrieve the access specifier for this declaration, even though 415109f5fc8dff6f3bd707e0e4140dc99ef7d4f3e88Douglas Gregor /// it may not yet have been properly set. 416109f5fc8dff6f3bd707e0e4140dc99ef7d4f3e88Douglas Gregor AccessSpecifier getAccessUnsafe() const { 417109f5fc8dff6f3bd707e0e4140dc99ef7d4f3e88Douglas Gregor return AccessSpecifier(Access); 418109f5fc8dff6f3bd707e0e4140dc99ef7d4f3e88Douglas Gregor } 419109f5fc8dff6f3bd707e0e4140dc99ef7d4f3e88Douglas Gregor 42076a642ff4fce7a0648c79a1f01324a8c3880e251Chris Lattner bool hasAttrs() const { return HasAttrs; } 4214bbb8501d9db2ae72b1e39afaafa5795d67ffe03Argyrios Kyrtzidis void setAttrs(const AttrVec& Attrs) { 4224bbb8501d9db2ae72b1e39afaafa5795d67ffe03Argyrios Kyrtzidis return setAttrsImpl(Attrs, getASTContext()); 4234bbb8501d9db2ae72b1e39afaafa5795d67ffe03Argyrios Kyrtzidis } 424ad8dcf4a9df0e24051dc31bf9e6f3cd138a34298Chris Lattner AttrVec &getAttrs() { 425cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt return const_cast<AttrVec&>(const_cast<const Decl*>(this)->getAttrs()); 42681abbdd848aa02c30242bd22dcc6ffe024ae2957Chris Lattner } 427cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt const AttrVec &getAttrs() const; 428cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt void dropAttrs(); 4290ed844b04ea4387caa4e1cf3dc375d269657536bChris Lattner 430b5f35bae05f1ce3ae62ca52b266a086fd019e89bDouglas Gregor void addAttr(Attr *A) { 431b5f35bae05f1ce3ae62ca52b266a086fd019e89bDouglas Gregor if (hasAttrs()) 432b5f35bae05f1ce3ae62ca52b266a086fd019e89bDouglas Gregor getAttrs().push_back(A); 433b5f35bae05f1ce3ae62ca52b266a086fd019e89bDouglas Gregor else 434b5f35bae05f1ce3ae62ca52b266a086fd019e89bDouglas Gregor setAttrs(AttrVec(1, A)); 435b5f35bae05f1ce3ae62ca52b266a086fd019e89bDouglas Gregor } 4361eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 437cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt typedef AttrVec::const_iterator attr_iterator; 438651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines typedef llvm::iterator_range<attr_iterator> attr_range; 439651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines 440651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines attr_range attrs() const { 441651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines return attr_range(attr_begin(), attr_end()); 442651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines } 443cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt 444cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt attr_iterator attr_begin() const { 4456bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines return hasAttrs() ? getAttrs().begin() : nullptr; 446cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt } 447cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt attr_iterator attr_end() const { 4486bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines return hasAttrs() ? getAttrs().end() : nullptr; 449cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt } 450ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie 451c3ca14d13741889a9b924d0ca32e818f07a9834aFariborz Jahanian template <typename T> 4528cf0f52037e0c4bf656953ae63a07e8156aeb5fbFariborz Jahanian void dropAttr() { 4538cf0f52037e0c4bf656953ae63a07e8156aeb5fbFariborz Jahanian if (!HasAttrs) return; 454ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie 45510be5bad483cfe66bb5eb5ff948c03c4628ce774Benjamin Kramer AttrVec &Vec = getAttrs(); 45610be5bad483cfe66bb5eb5ff948c03c4628ce774Benjamin Kramer Vec.erase(std::remove_if(Vec.begin(), Vec.end(), isa<T, Attr*>), Vec.end()); 45710be5bad483cfe66bb5eb5ff948c03c4628ce774Benjamin Kramer 45810be5bad483cfe66bb5eb5ff948c03c4628ce774Benjamin Kramer if (Vec.empty()) 4598cf0f52037e0c4bf656953ae63a07e8156aeb5fbFariborz Jahanian HasAttrs = false; 4608cf0f52037e0c4bf656953ae63a07e8156aeb5fbFariborz Jahanian } 461ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie 462cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt template <typename T> 463651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines llvm::iterator_range<specific_attr_iterator<T>> specific_attrs() const { 464651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines return llvm::iterator_range<specific_attr_iterator<T>>( 465651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines specific_attr_begin<T>(), specific_attr_end<T>()); 466651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines } 467651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines 468651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines template <typename T> 469cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt specific_attr_iterator<T> specific_attr_begin() const { 470cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt return specific_attr_iterator<T>(attr_begin()); 471cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt } 472cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt template <typename T> 473cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt specific_attr_iterator<T> specific_attr_end() const { 474cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt return specific_attr_iterator<T>(attr_end()); 475cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt } 476cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt 477cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt template<typename T> T *getAttr() const { 4786bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines return hasAttrs() ? getSpecificAttr<T>(getAttrs()) : nullptr; 479cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt } 48040b598eea1310ec9ed554d56ce3e25b34c585458Argyrios Kyrtzidis template<typename T> bool hasAttr() const { 481cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt return hasAttrs() && hasSpecificAttr<T>(getAttrs()); 482cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt } 483cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt 484cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt /// getMaxAlignment - return the maximum alignment specified by attributes 485cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt /// on this decl, 0 if there are none. 4862fa67efeaf66a9332c30a026dc1c21bef6c33a6cBenjamin Kramer unsigned getMaxAlignment() const; 4871eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 4880ed844b04ea4387caa4e1cf3dc375d269657536bChris Lattner /// setInvalidDecl - Indicates the Decl had a semantic error. This 4890ed844b04ea4387caa4e1cf3dc375d269657536bChris Lattner /// allows for graceful error recovery. 49042738573253da1bd61f9c44f8d77f600d3b0cd1cDouglas Gregor void setInvalidDecl(bool Invalid = true); 4910ed844b04ea4387caa4e1cf3dc375d269657536bChris Lattner bool isInvalidDecl() const { return (bool) InvalidDecl; } 4926b3945f4bc757bdadd3e443180cf32c2cccb52a0Douglas Gregor 4936b3945f4bc757bdadd3e443180cf32c2cccb52a0Douglas Gregor /// isImplicit - Indicates whether the declaration was implicitly 4946b3945f4bc757bdadd3e443180cf32c2cccb52a0Douglas Gregor /// generated by the implementation. If false, this declaration 4956b3945f4bc757bdadd3e443180cf32c2cccb52a0Douglas Gregor /// was written explicitly in the source code. 4966b3945f4bc757bdadd3e443180cf32c2cccb52a0Douglas Gregor bool isImplicit() const { return Implicit; } 4976b3945f4bc757bdadd3e443180cf32c2cccb52a0Douglas Gregor void setImplicit(bool I = true) { Implicit = I; } 4981eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 499e0762c92110dfdcdd207db461a4ea17afd168f1eDouglas Gregor /// \brief Whether this declaration was used, meaning that a definition 500e0762c92110dfdcdd207db461a4ea17afd168f1eDouglas Gregor /// is required. 501c070cc602d6eefea881f71a60de09e05b54c3fddDouglas Gregor /// 502c070cc602d6eefea881f71a60de09e05b54c3fddDouglas Gregor /// \param CheckUsedAttr When true, also consider the "used" attribute 503c070cc602d6eefea881f71a60de09e05b54c3fddDouglas Gregor /// (in addition to the "used" bit set by \c setUsed()) when determining 504c070cc602d6eefea881f71a60de09e05b54c3fddDouglas Gregor /// whether the function is used. 505c070cc602d6eefea881f71a60de09e05b54c3fddDouglas Gregor bool isUsed(bool CheckUsedAttr = true) const; 506cf807c4dfdb23e8fa3f400e0b24ef5b79db7a530Sean Hunt 50786164e8f51fa89a3ec904607c3848dc4a21b12cfEli Friedman /// \brief Set whether the declaration is used, in the sense of odr-use. 50886164e8f51fa89a3ec904607c3848dc4a21b12cfEli Friedman /// 50986164e8f51fa89a3ec904607c3848dc4a21b12cfEli Friedman /// This should only be used immediately after creating a declaration. 510e7bd89af8aa96a779c0031baf1a21e960a51d0f0Rafael Espindola void setIsUsed() { Used = true; } 51186164e8f51fa89a3ec904607c3848dc4a21b12cfEli Friedman 51286164e8f51fa89a3ec904607c3848dc4a21b12cfEli Friedman /// \brief Mark the declaration used, in the sense of odr-use. 51386164e8f51fa89a3ec904607c3848dc4a21b12cfEli Friedman /// 51486164e8f51fa89a3ec904607c3848dc4a21b12cfEli Friedman /// This notifies any mutation listeners in addition to setting a bit 51586164e8f51fa89a3ec904607c3848dc4a21b12cfEli Friedman /// indicating the declaration is used. 51686164e8f51fa89a3ec904607c3848dc4a21b12cfEli Friedman void markUsed(ASTContext &C); 5171eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 5186b6b42aed07726178f61954ac6e51f47da00275cArgyrios Kyrtzidis /// \brief Whether this declaration was referenced. 5196b6b42aed07726178f61954ac6e51f47da00275cArgyrios Kyrtzidis bool isReferenced() const; 5206b6b42aed07726178f61954ac6e51f47da00275cArgyrios Kyrtzidis 5216b6b42aed07726178f61954ac6e51f47da00275cArgyrios Kyrtzidis void setReferenced(bool R = true) { Referenced = R; } 5226b6b42aed07726178f61954ac6e51f47da00275cArgyrios Kyrtzidis 523c14a03dffff69b5e1c55cc118fc52d8fd9f3a28dArgyrios Kyrtzidis /// \brief Whether this declaration is a top-level declaration (function, 524c14a03dffff69b5e1c55cc118fc52d8fd9f3a28dArgyrios Kyrtzidis /// global variable, etc.) that is lexically inside an objc container 525c14a03dffff69b5e1c55cc118fc52d8fd9f3a28dArgyrios Kyrtzidis /// definition. 526c14a03dffff69b5e1c55cc118fc52d8fd9f3a28dArgyrios Kyrtzidis bool isTopLevelDeclInObjCContainer() const { 52746cd2186bddc3e046140cb2d56932ee7faf7e3aeDouglas Gregor return NextInContextAndBits.getInt() & TopLevelDeclInObjCContainerFlag; 528c14a03dffff69b5e1c55cc118fc52d8fd9f3a28dArgyrios Kyrtzidis } 529c14a03dffff69b5e1c55cc118fc52d8fd9f3a28dArgyrios Kyrtzidis 530c14a03dffff69b5e1c55cc118fc52d8fd9f3a28dArgyrios Kyrtzidis void setTopLevelDeclInObjCContainer(bool V = true) { 53146cd2186bddc3e046140cb2d56932ee7faf7e3aeDouglas Gregor unsigned Bits = NextInContextAndBits.getInt(); 53246cd2186bddc3e046140cb2d56932ee7faf7e3aeDouglas Gregor if (V) 53346cd2186bddc3e046140cb2d56932ee7faf7e3aeDouglas Gregor Bits |= TopLevelDeclInObjCContainerFlag; 53446cd2186bddc3e046140cb2d56932ee7faf7e3aeDouglas Gregor else 53546cd2186bddc3e046140cb2d56932ee7faf7e3aeDouglas Gregor Bits &= ~TopLevelDeclInObjCContainerFlag; 53646cd2186bddc3e046140cb2d56932ee7faf7e3aeDouglas Gregor NextInContextAndBits.setInt(Bits); 53746cd2186bddc3e046140cb2d56932ee7faf7e3aeDouglas Gregor } 53846cd2186bddc3e046140cb2d56932ee7faf7e3aeDouglas Gregor 53946cd2186bddc3e046140cb2d56932ee7faf7e3aeDouglas Gregor /// \brief Whether this declaration was marked as being private to the 54046cd2186bddc3e046140cb2d56932ee7faf7e3aeDouglas Gregor /// module in which it was defined. 541b775100fea6d8955149897dae1adca50ca471d17Richard Smith bool isModulePrivate() const { 54246cd2186bddc3e046140cb2d56932ee7faf7e3aeDouglas Gregor return NextInContextAndBits.getInt() & ModulePrivateFlag; 54346cd2186bddc3e046140cb2d56932ee7faf7e3aeDouglas Gregor } 544b775100fea6d8955149897dae1adca50ca471d17Richard Smith 545b775100fea6d8955149897dae1adca50ca471d17Richard Smithprotected: 54646cd2186bddc3e046140cb2d56932ee7faf7e3aeDouglas Gregor /// \brief Specify whether this declaration was marked as being private 54746cd2186bddc3e046140cb2d56932ee7faf7e3aeDouglas Gregor /// to the module in which it was defined. 54846cd2186bddc3e046140cb2d56932ee7faf7e3aeDouglas Gregor void setModulePrivate(bool MP = true) { 54946cd2186bddc3e046140cb2d56932ee7faf7e3aeDouglas Gregor unsigned Bits = NextInContextAndBits.getInt(); 55046cd2186bddc3e046140cb2d56932ee7faf7e3aeDouglas Gregor if (MP) 55146cd2186bddc3e046140cb2d56932ee7faf7e3aeDouglas Gregor Bits |= ModulePrivateFlag; 55246cd2186bddc3e046140cb2d56932ee7faf7e3aeDouglas Gregor else 55346cd2186bddc3e046140cb2d56932ee7faf7e3aeDouglas Gregor Bits &= ~ModulePrivateFlag; 55446cd2186bddc3e046140cb2d56932ee7faf7e3aeDouglas Gregor NextInContextAndBits.setInt(Bits); 555c14a03dffff69b5e1c55cc118fc52d8fd9f3a28dArgyrios Kyrtzidis } 556c14a03dffff69b5e1c55cc118fc52d8fd9f3a28dArgyrios Kyrtzidis 557c6c8e0ec96bb64f1b9f543d7c8317c6090f80a30Douglas Gregor /// \brief Set the owning module ID. 558c6c8e0ec96bb64f1b9f543d7c8317c6090f80a30Douglas Gregor void setOwningModuleID(unsigned ID) { 559c6c8e0ec96bb64f1b9f543d7c8317c6090f80a30Douglas Gregor assert(isFromASTFile() && "Only works on a deserialized declaration"); 560c6c8e0ec96bb64f1b9f543d7c8317c6090f80a30Douglas Gregor *((unsigned*)this - 2) = ID; 561c6c8e0ec96bb64f1b9f543d7c8317c6090f80a30Douglas Gregor } 562c6c8e0ec96bb64f1b9f543d7c8317c6090f80a30Douglas Gregor 56346cd2186bddc3e046140cb2d56932ee7faf7e3aeDouglas Gregorpublic: 56446cd2186bddc3e046140cb2d56932ee7faf7e3aeDouglas Gregor 5650a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor /// \brief Determine the availability of the given declaration. 5660a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor /// 5670a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor /// This routine will determine the most restrictive availability of 5680a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor /// the given declaration (e.g., preferring 'unavailable' to 5690a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor /// 'deprecated'). 5700a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor /// 5710a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor /// \param Message If non-NULL and the result is not \c 5720a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor /// AR_Available, will be set to a (possibly empty) message 5730a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor /// describing why the declaration has not been introduced, is 5740a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor /// deprecated, or is unavailable. 5756bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines AvailabilityResult getAvailability(std::string *Message = nullptr) const; 5760a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor 5770a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor /// \brief Determine whether this declaration is marked 'deprecated'. 5780a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor /// 5790a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor /// \param Message If non-NULL and the declaration is deprecated, 5800a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor /// this will be set to the message describing why the declaration 5810a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor /// was deprecated (which may be empty). 5826bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines bool isDeprecated(std::string *Message = nullptr) const { 5830a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor return getAvailability(Message) == AR_Deprecated; 5840a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor } 5850a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor 5860a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor /// \brief Determine whether this declaration is marked 'unavailable'. 5870a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor /// 5880a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor /// \param Message If non-NULL and the declaration is unavailable, 5890a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor /// this will be set to the message describing why the declaration 5900a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor /// was made unavailable (which may be empty). 5916bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines bool isUnavailable(std::string *Message = nullptr) const { 5920a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor return getAvailability(Message) == AR_Unavailable; 5930a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor } 5940a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor 5950a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor /// \brief Determine whether this is a weak-imported symbol. 5960a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor /// 5970a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor /// Weak-imported symbols are typically marked with the 5987f3ad231bed2184694e407772689e8903068bdcaEli Friedman /// 'weak_import' attribute, but may also be marked with an 5990a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor /// 'availability' attribute where we're targing a platform prior to 6000a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor /// the introduction of this feature. 6010a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor bool isWeakImported() const; 6020a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor 6030a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor /// \brief Determines whether this symbol can be weak-imported, 6040a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor /// e.g., whether it would be well-formed to add the weak_import 6050a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor /// attribute. 6060a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor /// 6070a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor /// \param IsDefinition Set to \c true to indicate that this 6080a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor /// declaration cannot be weak-imported because it has a definition. 6090a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor bool canBeWeakImported(bool &IsDefinition) const; 6100a0d2b179085a52c10402feebeb6db8b4d96a140Douglas Gregor 611919814def90acecd25a35445862f0c0ff72a9b05Douglas Gregor /// \brief Determine whether this declaration came from an AST file (such as 612919814def90acecd25a35445862f0c0ff72a9b05Douglas Gregor /// a precompiled header or module) rather than having been parsed. 61308e0bc16b3312c27e87d33be7dcf3d4fe5bdd2e2Douglas Gregor bool isFromASTFile() const { return FromASTFile; } 614ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie 615b6b60c1521a2e65f60e93c5fd56c103cf027df63Douglas Gregor /// \brief Retrieve the global declaration ID associated with this 616b6b60c1521a2e65f60e93c5fd56c103cf027df63Douglas Gregor /// declaration, which specifies where in the 617b6b60c1521a2e65f60e93c5fd56c103cf027df63Douglas Gregor unsigned getGlobalID() const { 618b6b60c1521a2e65f60e93c5fd56c103cf027df63Douglas Gregor if (isFromASTFile()) 619b6b60c1521a2e65f60e93c5fd56c103cf027df63Douglas Gregor return *((const unsigned*)this - 1); 620b6b60c1521a2e65f60e93c5fd56c103cf027df63Douglas Gregor return 0; 621b6b60c1521a2e65f60e93c5fd56c103cf027df63Douglas Gregor } 622c6c8e0ec96bb64f1b9f543d7c8317c6090f80a30Douglas Gregor 623c6c8e0ec96bb64f1b9f543d7c8317c6090f80a30Douglas Gregor /// \brief Retrieve the global ID of the module that owns this particular 624c6c8e0ec96bb64f1b9f543d7c8317c6090f80a30Douglas Gregor /// declaration. 625c6c8e0ec96bb64f1b9f543d7c8317c6090f80a30Douglas Gregor unsigned getOwningModuleID() const { 626c6c8e0ec96bb64f1b9f543d7c8317c6090f80a30Douglas Gregor if (isFromASTFile()) 627c6c8e0ec96bb64f1b9f543d7c8317c6090f80a30Douglas Gregor return *((const unsigned*)this - 2); 628c6c8e0ec96bb64f1b9f543d7c8317c6090f80a30Douglas Gregor 629c6c8e0ec96bb64f1b9f543d7c8317c6090f80a30Douglas Gregor return 0; 630c6c8e0ec96bb64f1b9f543d7c8317c6090f80a30Douglas Gregor } 631ca2ab45341c448284cf93770018c717810575f86Douglas Gregor 632ca2ab45341c448284cf93770018c717810575f86Douglas Gregorprivate: 633ca2ab45341c448284cf93770018c717810575f86Douglas Gregor Module *getOwningModuleSlow() const; 634ca2ab45341c448284cf93770018c717810575f86Douglas Gregor 635ca2ab45341c448284cf93770018c717810575f86Douglas Gregorpublic: 636ca2ab45341c448284cf93770018c717810575f86Douglas Gregor Module *getOwningModule() const { 637ca2ab45341c448284cf93770018c717810575f86Douglas Gregor if (!isFromASTFile()) 6386bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines return nullptr; 639ca2ab45341c448284cf93770018c717810575f86Douglas Gregor 640ca2ab45341c448284cf93770018c717810575f86Douglas Gregor return getOwningModuleSlow(); 641ca2ab45341c448284cf93770018c717810575f86Douglas Gregor } 642ca2ab45341c448284cf93770018c717810575f86Douglas Gregor 643cc636688c4fd10b1732ce3e33b2b106024d545caDouglas Gregor unsigned getIdentifierNamespace() const { 644769dbdf467681f6020ff248b969c2d41a4fdccd3Chris Lattner return IdentifierNamespace; 6450ed844b04ea4387caa4e1cf3dc375d269657536bChris Lattner } 646d62fdc448b3ace606c8c9c9f13e43218fa204dbfChris Lattner bool isInIdentifierNamespace(unsigned NS) const { 647d62fdc448b3ace606c8c9c9f13e43218fa204dbfChris Lattner return getIdentifierNamespace() & NS; 648d62fdc448b3ace606c8c9c9f13e43218fa204dbfChris Lattner } 649769dbdf467681f6020ff248b969c2d41a4fdccd3Chris Lattner static unsigned getIdentifierNamespaceForKind(Kind DK); 650769dbdf467681f6020ff248b969c2d41a4fdccd3Chris Lattner 6510d6b1640eb4d1a4a0203235cfdfcdaf3335af36dJohn McCall bool hasTagIdentifierNamespace() const { 6520d6b1640eb4d1a4a0203235cfdfcdaf3335af36dJohn McCall return isTagIdentifierNamespace(getIdentifierNamespace()); 6530d6b1640eb4d1a4a0203235cfdfcdaf3335af36dJohn McCall } 6540d6b1640eb4d1a4a0203235cfdfcdaf3335af36dJohn McCall static bool isTagIdentifierNamespace(unsigned NS) { 6550d6b1640eb4d1a4a0203235cfdfcdaf3335af36dJohn McCall // TagDecls have Tag and Type set and may also have TagFriend. 6560d6b1640eb4d1a4a0203235cfdfcdaf3335af36dJohn McCall return (NS & ~IDNS_TagFriend) == (IDNS_Tag | IDNS_Type); 6570d6b1640eb4d1a4a0203235cfdfcdaf3335af36dJohn McCall } 6581eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 6594afa39deaa245592977136d367251ee2c173dd8dDouglas Gregor /// getLexicalDeclContext - The declaration context where this Decl was 6604afa39deaa245592977136d367251ee2c173dd8dDouglas Gregor /// lexically declared (LexicalDC). May be different from 6614afa39deaa245592977136d367251ee2c173dd8dDouglas Gregor /// getDeclContext() (SemanticDC). 6624afa39deaa245592977136d367251ee2c173dd8dDouglas Gregor /// e.g.: 6634afa39deaa245592977136d367251ee2c173dd8dDouglas Gregor /// 6644afa39deaa245592977136d367251ee2c173dd8dDouglas Gregor /// namespace A { 6654afa39deaa245592977136d367251ee2c173dd8dDouglas Gregor /// void f(); // SemanticDC == LexicalDC == 'namespace A' 6664afa39deaa245592977136d367251ee2c173dd8dDouglas Gregor /// } 6674afa39deaa245592977136d367251ee2c173dd8dDouglas Gregor /// void A::f(); // SemanticDC == namespace 'A' 6684afa39deaa245592977136d367251ee2c173dd8dDouglas Gregor /// // LexicalDC == global namespace 66910d8379676f32b493740a5509e2cd7f0d6433139Chris Lattner DeclContext *getLexicalDeclContext() { 6704afa39deaa245592977136d367251ee2c173dd8dDouglas Gregor if (isInSemaDC()) 67110d8379676f32b493740a5509e2cd7f0d6433139Chris Lattner return getSemanticDC(); 6724afa39deaa245592977136d367251ee2c173dd8dDouglas Gregor return getMultipleDC()->LexicalDC; 6734afa39deaa245592977136d367251ee2c173dd8dDouglas Gregor } 67410d8379676f32b493740a5509e2cd7f0d6433139Chris Lattner const DeclContext *getLexicalDeclContext() const { 67510d8379676f32b493740a5509e2cd7f0d6433139Chris Lattner return const_cast<Decl*>(this)->getLexicalDeclContext(); 6764afa39deaa245592977136d367251ee2c173dd8dDouglas Gregor } 677f5cecfbdcd20be224861f9e67c5973a9a2b61512Argyrios Kyrtzidis 678da2142f2e2b3a02ee6eb5de9f9e6ed6f7eb5a0c0Douglas Gregor virtual bool isOutOfLine() const { 679da2142f2e2b3a02ee6eb5de9f9e6ed6f7eb5a0c0Douglas Gregor return getLexicalDeclContext() != getDeclContext(); 680da2142f2e2b3a02ee6eb5de9f9e6ed6f7eb5a0c0Douglas Gregor } 6811eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 6826ab3524f72a6e64aa04973fa9433b5559abb3525Douglas Gregor /// setDeclContext - Set both the semantic and lexical DeclContext 6836ab3524f72a6e64aa04973fa9433b5559abb3525Douglas Gregor /// to DC. 6846ab3524f72a6e64aa04973fa9433b5559abb3525Douglas Gregor void setDeclContext(DeclContext *DC); 6856ab3524f72a6e64aa04973fa9433b5559abb3525Douglas Gregor 6864afa39deaa245592977136d367251ee2c173dd8dDouglas Gregor void setLexicalDeclContext(DeclContext *DC); 6874afa39deaa245592977136d367251ee2c173dd8dDouglas Gregor 6887a126a474fdde06382b315b4e3d8ef0a21d4dc31Sebastian Redl /// isDefinedOutsideFunctionOrMethod - This predicate returns true if this 6897a126a474fdde06382b315b4e3d8ef0a21d4dc31Sebastian Redl /// scoped decl is defined outside the current function or method. This is 6907a126a474fdde06382b315b4e3d8ef0a21d4dc31Sebastian Redl /// roughly global variables and functions, but also handles enums (which 6917a126a474fdde06382b315b4e3d8ef0a21d4dc31Sebastian Redl /// could be defined inside or outside a function etc). 692c8680f46970a5a53d07e05edd93657e64764da3cArgyrios Kyrtzidis bool isDefinedOutsideFunctionOrMethod() const { 6936bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines return getParentFunctionOrMethod() == nullptr; 694c8680f46970a5a53d07e05edd93657e64764da3cArgyrios Kyrtzidis } 695c8680f46970a5a53d07e05edd93657e64764da3cArgyrios Kyrtzidis 696c8680f46970a5a53d07e05edd93657e64764da3cArgyrios Kyrtzidis /// \brief If this decl is defined inside a function/method/block it returns 697c8680f46970a5a53d07e05edd93657e64764da3cArgyrios Kyrtzidis /// the corresponding DeclContext, otherwise it returns null. 698c8680f46970a5a53d07e05edd93657e64764da3cArgyrios Kyrtzidis const DeclContext *getParentFunctionOrMethod() const; 699fcc1e50ebcb441c6c610ccd539f57c57549bd66cArgyrios Kyrtzidis DeclContext *getParentFunctionOrMethod() { 700fcc1e50ebcb441c6c610ccd539f57c57549bd66cArgyrios Kyrtzidis return const_cast<DeclContext*>( 701fcc1e50ebcb441c6c610ccd539f57c57549bd66cArgyrios Kyrtzidis const_cast<const Decl*>(this)->getParentFunctionOrMethod()); 702fcc1e50ebcb441c6c610ccd539f57c57549bd66cArgyrios Kyrtzidis } 7034afa39deaa245592977136d367251ee2c173dd8dDouglas Gregor 704b57a4fe73b8227c0dba651818b8495dfca61e530Argyrios Kyrtzidis /// \brief Retrieves the "canonical" declaration of the given declaration. 705da2142f2e2b3a02ee6eb5de9f9e6ed6f7eb5a0c0Douglas Gregor virtual Decl *getCanonicalDecl() { return this; } 706b57a4fe73b8227c0dba651818b8495dfca61e530Argyrios Kyrtzidis const Decl *getCanonicalDecl() const { 707b57a4fe73b8227c0dba651818b8495dfca61e530Argyrios Kyrtzidis return const_cast<Decl*>(this)->getCanonicalDecl(); 708b57a4fe73b8227c0dba651818b8495dfca61e530Argyrios Kyrtzidis } 709fc7e2a8fbb08f0f496ac6cea0721fe72db8ce240Argyrios Kyrtzidis 710ac4e3794c60fc194fb2bd9764aa81d4cae530eccArgyrios Kyrtzidis /// \brief Whether this particular Decl is a canonical one. 711b57a4fe73b8227c0dba651818b8495dfca61e530Argyrios Kyrtzidis bool isCanonicalDecl() const { return getCanonicalDecl() == this; } 712c896ad064fd6ee73a7e0536d94df77b2cc7313b6Douglas Gregor 7131e4bc099882626059f14d687ed7a1a5518b7f3c2Argyrios Kyrtzidisprotected: 7141e4bc099882626059f14d687ed7a1a5518b7f3c2Argyrios Kyrtzidis /// \brief Returns the next redeclaration or itself if this is the only decl. 7151e4bc099882626059f14d687ed7a1a5518b7f3c2Argyrios Kyrtzidis /// 7161e4bc099882626059f14d687ed7a1a5518b7f3c2Argyrios Kyrtzidis /// Decl subclasses that can be redeclared should override this method so that 7171e4bc099882626059f14d687ed7a1a5518b7f3c2Argyrios Kyrtzidis /// Decl::redecl_iterator can iterate over them. 7186bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines virtual Decl *getNextRedeclarationImpl() { return this; } 7191e4bc099882626059f14d687ed7a1a5518b7f3c2Argyrios Kyrtzidis 720ef96ee0be5f100789f451641542a69cd719144d2Douglas Gregor /// \brief Implementation of getPreviousDecl(), to be overridden by any 721ef96ee0be5f100789f451641542a69cd719144d2Douglas Gregor /// subclass that has a redeclaration chain. 7226bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines virtual Decl *getPreviousDeclImpl() { return nullptr; } 7236bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines 724ef96ee0be5f100789f451641542a69cd719144d2Douglas Gregor /// \brief Implementation of getMostRecentDecl(), to be overridden by any 7256bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines /// subclass that has a redeclaration chain. 726ef96ee0be5f100789f451641542a69cd719144d2Douglas Gregor virtual Decl *getMostRecentDeclImpl() { return this; } 7276bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines 7281e4bc099882626059f14d687ed7a1a5518b7f3c2Argyrios Kyrtzidispublic: 7291e4bc099882626059f14d687ed7a1a5518b7f3c2Argyrios Kyrtzidis /// \brief Iterates through all the redeclarations of the same decl. 7301e4bc099882626059f14d687ed7a1a5518b7f3c2Argyrios Kyrtzidis class redecl_iterator { 7311e4bc099882626059f14d687ed7a1a5518b7f3c2Argyrios Kyrtzidis /// Current - The current declaration. 7321e4bc099882626059f14d687ed7a1a5518b7f3c2Argyrios Kyrtzidis Decl *Current; 7331e4bc099882626059f14d687ed7a1a5518b7f3c2Argyrios Kyrtzidis Decl *Starter; 7341e4bc099882626059f14d687ed7a1a5518b7f3c2Argyrios Kyrtzidis 7351e4bc099882626059f14d687ed7a1a5518b7f3c2Argyrios Kyrtzidis public: 736581deb3da481053c4993c7600f97acf7768caac5David Blaikie typedef Decl *value_type; 737581deb3da481053c4993c7600f97acf7768caac5David Blaikie typedef const value_type &reference; 738581deb3da481053c4993c7600f97acf7768caac5David Blaikie typedef const value_type *pointer; 7391e4bc099882626059f14d687ed7a1a5518b7f3c2Argyrios Kyrtzidis typedef std::forward_iterator_tag iterator_category; 740581deb3da481053c4993c7600f97acf7768caac5David Blaikie typedef std::ptrdiff_t difference_type; 7411e4bc099882626059f14d687ed7a1a5518b7f3c2Argyrios Kyrtzidis 7426bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines redecl_iterator() : Current(nullptr) { } 7431e4bc099882626059f14d687ed7a1a5518b7f3c2Argyrios Kyrtzidis explicit redecl_iterator(Decl *C) : Current(C), Starter(C) { } 7441e4bc099882626059f14d687ed7a1a5518b7f3c2Argyrios Kyrtzidis 745581deb3da481053c4993c7600f97acf7768caac5David Blaikie reference operator*() const { return Current; } 746581deb3da481053c4993c7600f97acf7768caac5David Blaikie value_type operator->() const { return Current; } 7471e4bc099882626059f14d687ed7a1a5518b7f3c2Argyrios Kyrtzidis 7481e4bc099882626059f14d687ed7a1a5518b7f3c2Argyrios Kyrtzidis redecl_iterator& operator++() { 7491e4bc099882626059f14d687ed7a1a5518b7f3c2Argyrios Kyrtzidis assert(Current && "Advancing while iterator has reached end"); 7501e4bc099882626059f14d687ed7a1a5518b7f3c2Argyrios Kyrtzidis // Get either previous decl or latest decl. 7516bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines Decl *Next = Current->getNextRedeclarationImpl(); 75222cbd2b794676c3b29c2b401c26730ed7047809eArgyrios Kyrtzidis assert(Next && "Should return next redeclaration or itself, never null!"); 7536bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines Current = (Next != Starter) ? Next : nullptr; 7541e4bc099882626059f14d687ed7a1a5518b7f3c2Argyrios Kyrtzidis return *this; 7551e4bc099882626059f14d687ed7a1a5518b7f3c2Argyrios Kyrtzidis } 7561e4bc099882626059f14d687ed7a1a5518b7f3c2Argyrios Kyrtzidis 7571e4bc099882626059f14d687ed7a1a5518b7f3c2Argyrios Kyrtzidis redecl_iterator operator++(int) { 7581e4bc099882626059f14d687ed7a1a5518b7f3c2Argyrios Kyrtzidis redecl_iterator tmp(*this); 7591e4bc099882626059f14d687ed7a1a5518b7f3c2Argyrios Kyrtzidis ++(*this); 7601e4bc099882626059f14d687ed7a1a5518b7f3c2Argyrios Kyrtzidis return tmp; 7611e4bc099882626059f14d687ed7a1a5518b7f3c2Argyrios Kyrtzidis } 7621e4bc099882626059f14d687ed7a1a5518b7f3c2Argyrios Kyrtzidis 7631eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump friend bool operator==(redecl_iterator x, redecl_iterator y) { 7641e4bc099882626059f14d687ed7a1a5518b7f3c2Argyrios Kyrtzidis return x.Current == y.Current; 7651e4bc099882626059f14d687ed7a1a5518b7f3c2Argyrios Kyrtzidis } 7661eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump friend bool operator!=(redecl_iterator x, redecl_iterator y) { 7671e4bc099882626059f14d687ed7a1a5518b7f3c2Argyrios Kyrtzidis return x.Current != y.Current; 7681e4bc099882626059f14d687ed7a1a5518b7f3c2Argyrios Kyrtzidis } 7691e4bc099882626059f14d687ed7a1a5518b7f3c2Argyrios Kyrtzidis }; 7701e4bc099882626059f14d687ed7a1a5518b7f3c2Argyrios Kyrtzidis 771651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines typedef llvm::iterator_range<redecl_iterator> redecl_range; 772651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines 773651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines /// \brief Returns an iterator range for all the redeclarations of the same 774651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines /// decl. It will iterate at least once (when this decl is the only one). 775651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines redecl_range redecls() const { 776651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines return redecl_range(redecls_begin(), redecls_end()); 777651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines } 778651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines 7791e4bc099882626059f14d687ed7a1a5518b7f3c2Argyrios Kyrtzidis redecl_iterator redecls_begin() const { 780651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines return redecl_iterator(const_cast<Decl *>(this)); 7811e4bc099882626059f14d687ed7a1a5518b7f3c2Argyrios Kyrtzidis } 7821e4bc099882626059f14d687ed7a1a5518b7f3c2Argyrios Kyrtzidis redecl_iterator redecls_end() const { return redecl_iterator(); } 783fc7e2a8fbb08f0f496ac6cea0721fe72db8ce240Argyrios Kyrtzidis 784f785a7d611404cf4747287a2bbc59b4d0e6a5a8cDouglas Gregor /// \brief Retrieve the previous declaration that declares the same entity 785f785a7d611404cf4747287a2bbc59b4d0e6a5a8cDouglas Gregor /// as this declaration, or NULL if there is no previous declaration. 786ef96ee0be5f100789f451641542a69cd719144d2Douglas Gregor Decl *getPreviousDecl() { return getPreviousDeclImpl(); } 787f785a7d611404cf4747287a2bbc59b4d0e6a5a8cDouglas Gregor 788f785a7d611404cf4747287a2bbc59b4d0e6a5a8cDouglas Gregor /// \brief Retrieve the most recent declaration that declares the same entity 789ef96ee0be5f100789f451641542a69cd719144d2Douglas Gregor /// as this declaration, or NULL if there is no previous declaration. 790ef96ee0be5f100789f451641542a69cd719144d2Douglas Gregor const Decl *getPreviousDecl() const { 791ef96ee0be5f100789f451641542a69cd719144d2Douglas Gregor return const_cast<Decl *>(this)->getPreviousDeclImpl(); 792ef96ee0be5f100789f451641542a69cd719144d2Douglas Gregor } 7937693b32af6863c63fcaf4de087760740ee675f71Rafael Espindola 794e6ddd7f610cf6caf3b5691b0f3d60e00e8c95741Rafael Espindola /// \brief True if this is the first declaration in its redeclaration chain. 7957693b32af6863c63fcaf4de087760740ee675f71Rafael Espindola bool isFirstDecl() const { 7966bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines return getPreviousDecl() == nullptr; 7977693b32af6863c63fcaf4de087760740ee675f71Rafael Espindola } 7987693b32af6863c63fcaf4de087760740ee675f71Rafael Espindola 799ef96ee0be5f100789f451641542a69cd719144d2Douglas Gregor /// \brief Retrieve the most recent declaration that declares the same entity 800ef96ee0be5f100789f451641542a69cd719144d2Douglas Gregor /// as this declaration (which may be this declaration). 801ef96ee0be5f100789f451641542a69cd719144d2Douglas Gregor Decl *getMostRecentDecl() { return getMostRecentDeclImpl(); } 802ef96ee0be5f100789f451641542a69cd719144d2Douglas Gregor 803ef96ee0be5f100789f451641542a69cd719144d2Douglas Gregor /// \brief Retrieve the most recent declaration that declares the same entity 804ef96ee0be5f100789f451641542a69cd719144d2Douglas Gregor /// as this declaration (which may be this declaration). 805ef96ee0be5f100789f451641542a69cd719144d2Douglas Gregor const Decl *getMostRecentDecl() const { 806ef96ee0be5f100789f451641542a69cd719144d2Douglas Gregor return const_cast<Decl *>(this)->getMostRecentDeclImpl(); 807ef96ee0be5f100789f451641542a69cd719144d2Douglas Gregor } 808ef96ee0be5f100789f451641542a69cd719144d2Douglas Gregor 809d3a413d3b8eb39bcee5944bc545d9997c1abe492Sebastian Redl /// getBody - If this Decl represents a declaration for a body of code, 810d3a413d3b8eb39bcee5944bc545d9997c1abe492Sebastian Redl /// such as a function or method definition, this method returns the 811d3a413d3b8eb39bcee5944bc545d9997c1abe492Sebastian Redl /// top-level Stmt* of that body. Otherwise this method returns null. 8126bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines virtual Stmt* getBody() const { return nullptr; } 813d3a413d3b8eb39bcee5944bc545d9997c1abe492Sebastian Redl 814a438e68ad7da48e7e4903785e5e96732abcdadfbManuel Klimek /// \brief Returns true if this \c Decl represents a declaration for a body of 81506a54a38be5054c910ffc92db60edab23f9ea105Argyrios Kyrtzidis /// code, such as a function or method definition. 816a438e68ad7da48e7e4903785e5e96732abcdadfbManuel Klimek /// Note that \c hasBody can also return true if any redeclaration of this 817a438e68ad7da48e7e4903785e5e96732abcdadfbManuel Klimek /// \c Decl represents a declaration for a body of code. 8186bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines virtual bool hasBody() const { return getBody() != nullptr; } 81906a54a38be5054c910ffc92db60edab23f9ea105Argyrios Kyrtzidis 820d3a413d3b8eb39bcee5944bc545d9997c1abe492Sebastian Redl /// getBodyRBrace - Gets the right brace of the body, if a body exists. 821d3a413d3b8eb39bcee5944bc545d9997c1abe492Sebastian Redl /// This works whether the body is a CompoundStmt or a CXXTryStmt. 8226fb0aee4f9dc261bbec72e1283ad8dc0557a6d96Argyrios Kyrtzidis SourceLocation getBodyRBrace() const; 823d3a413d3b8eb39bcee5944bc545d9997c1abe492Sebastian Redl 8240ed844b04ea4387caa4e1cf3dc375d269657536bChris Lattner // global temp stats (until we have a per-module visitor) 8259a55591af3e5506b95a9718e15380129fbfc5ebcSean Hunt static void add(Kind k); 82602892a65b18875a04c7ed5eadb3a13be801ab477Daniel Dunbar static void EnableStatistics(); 8270ed844b04ea4387caa4e1cf3dc375d269657536bChris Lattner static void PrintStats(); 8281eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 82967e332009c6e349dc34700f539747afcff990336Anders Carlsson /// isTemplateParameter - Determines whether this declaration is a 830f57172b24f08a68d179675989813d5479dc87829Douglas Gregor /// template parameter. 831f57172b24f08a68d179675989813d5479dc87829Douglas Gregor bool isTemplateParameter() const; 8321eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 83367e332009c6e349dc34700f539747afcff990336Anders Carlsson /// isTemplateParameter - Determines whether this declaration is a 83467e332009c6e349dc34700f539747afcff990336Anders Carlsson /// template parameter pack. 83567e332009c6e349dc34700f539747afcff990336Anders Carlsson bool isTemplateParameterPack() const; 836f57172b24f08a68d179675989813d5479dc87829Douglas Gregor 8371fe85ea697fb5c85acded3ac0ddbc19f89c2e181Douglas Gregor /// \brief Whether this declaration is a parameter pack. 8381fe85ea697fb5c85acded3ac0ddbc19f89c2e181Douglas Gregor bool isParameterPack() const; 839ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie 840ed9d84a2112e2bd56befb5f4fa8fc5bdf71fafa3Caitlin Sadowski /// \brief returns true if this declaration is a template 841ed9d84a2112e2bd56befb5f4fa8fc5bdf71fafa3Caitlin Sadowski bool isTemplateDecl() const; 842ed9d84a2112e2bd56befb5f4fa8fc5bdf71fafa3Caitlin Sadowski 843e53060fa78ad7e98352049f72787bdb7543e2a48Douglas Gregor /// \brief Whether this declaration is a function or function template. 844651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines bool isFunctionOrFunctionTemplate() const { 845651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines return (DeclKind >= Decl::firstFunction && 846651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines DeclKind <= Decl::lastFunction) || 847651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines DeclKind == FunctionTemplate; 848651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines } 849651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines 850651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines /// \brief Returns the function itself, or the templated function if this is a 851651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines /// function template. 852651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines FunctionDecl *getAsFunction() LLVM_READONLY; 853651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines 854651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines const FunctionDecl *getAsFunction() const { 855651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines return const_cast<Decl *>(this)->getAsFunction(); 856651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines } 85702cace78cf48cc26686bd5b07c78606abca13bcdJohn McCall 85802cace78cf48cc26686bd5b07c78606abca13bcdJohn McCall /// \brief Changes the namespace of this declaration to reflect that it's 859a41c97a5d1912ffd184381d269fd8e5a25ee5e59Richard Smith /// a function-local extern declaration. 860a41c97a5d1912ffd184381d269fd8e5a25ee5e59Richard Smith /// 861a41c97a5d1912ffd184381d269fd8e5a25ee5e59Richard Smith /// These declarations appear in the lexical context of the extern 862a41c97a5d1912ffd184381d269fd8e5a25ee5e59Richard Smith /// declaration, but in the semantic context of the enclosing namespace 863a41c97a5d1912ffd184381d269fd8e5a25ee5e59Richard Smith /// scope. 864a41c97a5d1912ffd184381d269fd8e5a25ee5e59Richard Smith void setLocalExternDecl() { 865a41c97a5d1912ffd184381d269fd8e5a25ee5e59Richard Smith assert((IdentifierNamespace == IDNS_Ordinary || 866a41c97a5d1912ffd184381d269fd8e5a25ee5e59Richard Smith IdentifierNamespace == IDNS_OrdinaryFriend) && 867a41c97a5d1912ffd184381d269fd8e5a25ee5e59Richard Smith "namespace is not ordinary"); 868a41c97a5d1912ffd184381d269fd8e5a25ee5e59Richard Smith 869a41c97a5d1912ffd184381d269fd8e5a25ee5e59Richard Smith Decl *Prev = getPreviousDecl(); 870a41c97a5d1912ffd184381d269fd8e5a25ee5e59Richard Smith IdentifierNamespace &= ~IDNS_Ordinary; 871a41c97a5d1912ffd184381d269fd8e5a25ee5e59Richard Smith 872a41c97a5d1912ffd184381d269fd8e5a25ee5e59Richard Smith IdentifierNamespace |= IDNS_LocalExtern; 873a41c97a5d1912ffd184381d269fd8e5a25ee5e59Richard Smith if (Prev && Prev->getIdentifierNamespace() & IDNS_Ordinary) 874a41c97a5d1912ffd184381d269fd8e5a25ee5e59Richard Smith IdentifierNamespace |= IDNS_Ordinary; 875a41c97a5d1912ffd184381d269fd8e5a25ee5e59Richard Smith } 876a41c97a5d1912ffd184381d269fd8e5a25ee5e59Richard Smith 877a41c97a5d1912ffd184381d269fd8e5a25ee5e59Richard Smith /// \brief Determine whether this is a block-scope declaration with linkage. 878a41c97a5d1912ffd184381d269fd8e5a25ee5e59Richard Smith /// This will either be a local variable declaration declared 'extern', or a 879a41c97a5d1912ffd184381d269fd8e5a25ee5e59Richard Smith /// local function declaration. 880a41c97a5d1912ffd184381d269fd8e5a25ee5e59Richard Smith bool isLocalExternDecl() { 881a41c97a5d1912ffd184381d269fd8e5a25ee5e59Richard Smith return IdentifierNamespace & IDNS_LocalExtern; 882a41c97a5d1912ffd184381d269fd8e5a25ee5e59Richard Smith } 883a41c97a5d1912ffd184381d269fd8e5a25ee5e59Richard Smith 884a41c97a5d1912ffd184381d269fd8e5a25ee5e59Richard Smith /// \brief Changes the namespace of this declaration to reflect that it's 88502cace78cf48cc26686bd5b07c78606abca13bcdJohn McCall /// the object of a friend declaration. 88602cace78cf48cc26686bd5b07c78606abca13bcdJohn McCall /// 88702cace78cf48cc26686bd5b07c78606abca13bcdJohn McCall /// These declarations appear in the lexical context of the friending 88802cace78cf48cc26686bd5b07c78606abca13bcdJohn McCall /// class, but in the semantic context of the actual entity. This property 88902cace78cf48cc26686bd5b07c78606abca13bcdJohn McCall /// applies only to a specific decl object; other redeclarations of the 89002cace78cf48cc26686bd5b07c78606abca13bcdJohn McCall /// same entity may not (and probably don't) share this property. 89122050f25e34ba0cd21ee2dc3d765951c48e27cdeRichard Smith void setObjectOfFriendDecl(bool PerformFriendInjection = false) { 89202cace78cf48cc26686bd5b07c78606abca13bcdJohn McCall unsigned OldNS = IdentifierNamespace; 893b0cb022daec8671406ab25f4b5d5a6d48d823bc4John McCall assert((OldNS & (IDNS_Tag | IDNS_Ordinary | 894a41c97a5d1912ffd184381d269fd8e5a25ee5e59Richard Smith IDNS_TagFriend | IDNS_OrdinaryFriend | 895a41c97a5d1912ffd184381d269fd8e5a25ee5e59Richard Smith IDNS_LocalExtern)) && 896b0cb022daec8671406ab25f4b5d5a6d48d823bc4John McCall "namespace includes neither ordinary nor tag"); 8970d6b1640eb4d1a4a0203235cfdfcdaf3335af36dJohn McCall assert(!(OldNS & ~(IDNS_Tag | IDNS_Ordinary | IDNS_Type | 898a41c97a5d1912ffd184381d269fd8e5a25ee5e59Richard Smith IDNS_TagFriend | IDNS_OrdinaryFriend | 899a41c97a5d1912ffd184381d269fd8e5a25ee5e59Richard Smith IDNS_LocalExtern)) && 900b0cb022daec8671406ab25f4b5d5a6d48d823bc4John McCall "namespace includes other than ordinary or tag"); 901b0cb022daec8671406ab25f4b5d5a6d48d823bc4John McCall 90222050f25e34ba0cd21ee2dc3d765951c48e27cdeRichard Smith Decl *Prev = getPreviousDecl(); 903a41c97a5d1912ffd184381d269fd8e5a25ee5e59Richard Smith IdentifierNamespace &= ~(IDNS_Ordinary | IDNS_Tag | IDNS_Type); 904a41c97a5d1912ffd184381d269fd8e5a25ee5e59Richard Smith 905b0cb022daec8671406ab25f4b5d5a6d48d823bc4John McCall if (OldNS & (IDNS_Tag | IDNS_TagFriend)) { 90602cace78cf48cc26686bd5b07c78606abca13bcdJohn McCall IdentifierNamespace |= IDNS_TagFriend; 907a41c97a5d1912ffd184381d269fd8e5a25ee5e59Richard Smith if (PerformFriendInjection || 90822050f25e34ba0cd21ee2dc3d765951c48e27cdeRichard Smith (Prev && Prev->getIdentifierNamespace() & IDNS_Tag)) 90922050f25e34ba0cd21ee2dc3d765951c48e27cdeRichard Smith IdentifierNamespace |= IDNS_Tag | IDNS_Type; 910b0cb022daec8671406ab25f4b5d5a6d48d823bc4John McCall } 911b0cb022daec8671406ab25f4b5d5a6d48d823bc4John McCall 912a41c97a5d1912ffd184381d269fd8e5a25ee5e59Richard Smith if (OldNS & (IDNS_Ordinary | IDNS_OrdinaryFriend | IDNS_LocalExtern)) { 91302cace78cf48cc26686bd5b07c78606abca13bcdJohn McCall IdentifierNamespace |= IDNS_OrdinaryFriend; 91422050f25e34ba0cd21ee2dc3d765951c48e27cdeRichard Smith if (PerformFriendInjection || 91522050f25e34ba0cd21ee2dc3d765951c48e27cdeRichard Smith (Prev && Prev->getIdentifierNamespace() & IDNS_Ordinary)) 91622050f25e34ba0cd21ee2dc3d765951c48e27cdeRichard Smith IdentifierNamespace |= IDNS_Ordinary; 917b0cb022daec8671406ab25f4b5d5a6d48d823bc4John McCall } 91802cace78cf48cc26686bd5b07c78606abca13bcdJohn McCall } 91902cace78cf48cc26686bd5b07c78606abca13bcdJohn McCall 92002cace78cf48cc26686bd5b07c78606abca13bcdJohn McCall enum FriendObjectKind { 9217841abf94eb8653b26aa8d5bf67f4ad0ff074767David Majnemer FOK_None, ///< Not a friend object. 9227841abf94eb8653b26aa8d5bf67f4ad0ff074767David Majnemer FOK_Declared, ///< A friend of a previously-declared entity. 9237841abf94eb8653b26aa8d5bf67f4ad0ff074767David Majnemer FOK_Undeclared ///< A friend of a previously-undeclared entity. 92402cace78cf48cc26686bd5b07c78606abca13bcdJohn McCall }; 92502cace78cf48cc26686bd5b07c78606abca13bcdJohn McCall 92602cace78cf48cc26686bd5b07c78606abca13bcdJohn McCall /// \brief Determines whether this declaration is the object of a 92702cace78cf48cc26686bd5b07c78606abca13bcdJohn McCall /// friend declaration and, if so, what kind. 92802cace78cf48cc26686bd5b07c78606abca13bcdJohn McCall /// 92902cace78cf48cc26686bd5b07c78606abca13bcdJohn McCall /// There is currently no direct way to find the associated FriendDecl. 93002cace78cf48cc26686bd5b07c78606abca13bcdJohn McCall FriendObjectKind getFriendObjectKind() const { 9312946cebdf49d3a6eeba8df93be291a07b2d58cbcDavid Majnemer unsigned mask = 9322946cebdf49d3a6eeba8df93be291a07b2d58cbcDavid Majnemer (IdentifierNamespace & (IDNS_TagFriend | IDNS_OrdinaryFriend)); 93302cace78cf48cc26686bd5b07c78606abca13bcdJohn McCall if (!mask) return FOK_None; 9342946cebdf49d3a6eeba8df93be291a07b2d58cbcDavid Majnemer return (IdentifierNamespace & (IDNS_Tag | IDNS_Ordinary) ? FOK_Declared 9352946cebdf49d3a6eeba8df93be291a07b2d58cbcDavid Majnemer : FOK_Undeclared); 93602cace78cf48cc26686bd5b07c78606abca13bcdJohn McCall } 9371eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 93876d326448d7e4c10b2896edc2ee855d1e68d1b88John McCall /// Specifies that this declaration is a C++ overloaded non-member. 93976d326448d7e4c10b2896edc2ee855d1e68d1b88John McCall void setNonMemberOperator() { 94076d326448d7e4c10b2896edc2ee855d1e68d1b88John McCall assert(getKind() == Function || getKind() == FunctionTemplate); 94176d326448d7e4c10b2896edc2ee855d1e68d1b88John McCall assert((IdentifierNamespace & IDNS_Ordinary) && 94276d326448d7e4c10b2896edc2ee855d1e68d1b88John McCall "visible non-member operators should be in ordinary namespace"); 94376d326448d7e4c10b2896edc2ee855d1e68d1b88John McCall IdentifierNamespace |= IDNS_NonMemberOperator; 94476d326448d7e4c10b2896edc2ee855d1e68d1b88John McCall } 94576d326448d7e4c10b2896edc2ee855d1e68d1b88John McCall 94680cd64a8450d8e2c079dc134d9711cd45ba89d63John McCall static bool classofKind(Kind K) { return true; } 94742220c5432c141d47cc8ce786e472b49dc907378Argyrios Kyrtzidis static DeclContext *castToDeclContext(const Decl *); 94842220c5432c141d47cc8ce786e472b49dc907378Argyrios Kyrtzidis static Decl *castFromDeclContext(const DeclContext *); 9491eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 9505cb3d699f0e37de1767eb23d26d03953a46cf1ffRichard Trieu void print(raw_ostream &Out, unsigned Indentation = 0, 9515cb3d699f0e37de1767eb23d26d03953a46cf1ffRichard Trieu bool PrintInstantiation = false) const; 9528cc488fefb2fb04bc8d5398da29f0182f97934cfChris Lattner void print(raw_ostream &Out, const PrintingPolicy &Policy, 9535cb3d699f0e37de1767eb23d26d03953a46cf1ffRichard Trieu unsigned Indentation = 0, bool PrintInstantiation = false) const; 95442f42c0dd5cf71fbfc6fa282d03079a902f6e342Eli Friedman static void printGroup(Decl** Begin, unsigned NumDecls, 9558cc488fefb2fb04bc8d5398da29f0182f97934cfChris Lattner raw_ostream &Out, const PrintingPolicy &Policy, 95642f42c0dd5cf71fbfc6fa282d03079a902f6e342Eli Friedman unsigned Indentation = 0); 957559b928b05aeacc9c984a9d633ad586bbe858196Alexander Kornienko // Debuggers don't usually respect default arguments. 958651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines void dump() const; 9597ba443aa8cfb222737d3a964a19ad4fb1328c4b5Richard Trieu // Same as dump(), but forces color printing. 960651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines void dumpColor() const; 961559b928b05aeacc9c984a9d633ad586bbe858196Alexander Kornienko void dump(raw_ostream &Out) const; 9624fe0c8e9c76b96e7aff21696a40dacc09d0237bcDouglas Gregor 963651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines /// \brief Looks through the Decl's underlying type to extract a FunctionType 964651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines /// when possible. Will return null if the type underlying the Decl does not 965651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines /// have a FunctionType. 966651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines const FunctionType *getFunctionType(bool BlocksToo = true) const; 967651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines 96881abbdd848aa02c30242bd22dcc6ffe024ae2957Chris Lattnerprivate: 9694bbb8501d9db2ae72b1e39afaafa5795d67ffe03Argyrios Kyrtzidis void setAttrsImpl(const AttrVec& Attrs, ASTContext &Ctx); 9704bbb8501d9db2ae72b1e39afaafa5795d67ffe03Argyrios Kyrtzidis void setDeclContextsImpl(DeclContext *SemaDC, DeclContext *LexicalDC, 9714bbb8501d9db2ae72b1e39afaafa5795d67ffe03Argyrios Kyrtzidis ASTContext &Ctx); 97281abbdd848aa02c30242bd22dcc6ffe024ae2957Chris Lattner 9737b90340c9c7d07aef4e301e72b5e8a30d5f4f0c8Argyrios Kyrtzidisprotected: 9747b90340c9c7d07aef4e301e72b5e8a30d5f4f0c8Argyrios Kyrtzidis ASTMutationListener *getASTMutationListener() const; 9750ed844b04ea4387caa4e1cf3dc375d269657536bChris Lattner}; 9760ed844b04ea4387caa4e1cf3dc375d269657536bChris Lattner 977eaa9511dd2bcb0c7f90f47a236a91c82048f484eDouglas Gregor/// \brief Determine whether two declarations declare the same entity. 978eaa9511dd2bcb0c7f90f47a236a91c82048f484eDouglas Gregorinline bool declaresSameEntity(const Decl *D1, const Decl *D2) { 979eaa9511dd2bcb0c7f90f47a236a91c82048f484eDouglas Gregor if (!D1 || !D2) 980eaa9511dd2bcb0c7f90f47a236a91c82048f484eDouglas Gregor return false; 981eaa9511dd2bcb0c7f90f47a236a91c82048f484eDouglas Gregor 982dec1cc4ec73e96f315ab7dee51459700c0ad821dDouglas Gregor if (D1 == D2) 983dec1cc4ec73e96f315ab7dee51459700c0ad821dDouglas Gregor return true; 984dec1cc4ec73e96f315ab7dee51459700c0ad821dDouglas Gregor 985eaa9511dd2bcb0c7f90f47a236a91c82048f484eDouglas Gregor return D1->getCanonicalDecl() == D2->getCanonicalDecl(); 986eaa9511dd2bcb0c7f90f47a236a91c82048f484eDouglas Gregor} 987eaa9511dd2bcb0c7f90f47a236a91c82048f484eDouglas Gregor 98849f28ca787d8db7cac3c8898334f70ea55374c98Chris Lattner/// PrettyStackTraceDecl - If a crash occurs, indicate that it happened when 98949f28ca787d8db7cac3c8898334f70ea55374c98Chris Lattner/// doing something to a specific decl. 99049f28ca787d8db7cac3c8898334f70ea55374c98Chris Lattnerclass PrettyStackTraceDecl : public llvm::PrettyStackTraceEntry { 991c52365674b5b157a0486f75c12dd9f4cc41d8089Daniel Dunbar const Decl *TheDecl; 99249f28ca787d8db7cac3c8898334f70ea55374c98Chris Lattner SourceLocation Loc; 99349f28ca787d8db7cac3c8898334f70ea55374c98Chris Lattner SourceManager &SM; 99449f28ca787d8db7cac3c8898334f70ea55374c98Chris Lattner const char *Message; 99549f28ca787d8db7cac3c8898334f70ea55374c98Chris Lattnerpublic: 996c52365674b5b157a0486f75c12dd9f4cc41d8089Daniel Dunbar PrettyStackTraceDecl(const Decl *theDecl, SourceLocation L, 99749f28ca787d8db7cac3c8898334f70ea55374c98Chris Lattner SourceManager &sm, const char *Msg) 99849f28ca787d8db7cac3c8898334f70ea55374c98Chris Lattner : TheDecl(theDecl), Loc(L), SM(sm), Message(Msg) {} 9991eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1000651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines void print(raw_ostream &OS) const override; 10011eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump}; 10021eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1003ef8225444452a1486bd721f3285301fe84643b00Stephen Hinestypedef MutableArrayRef<NamedDecl *> DeclContextLookupResult; 1004ea318642072d3d94b5c3cff0fa6f4b33d2db0768John McCall 1005cfa88f893915ceb8ae4ce2f17c46c24a4d67502fDmitri Gribenkotypedef ArrayRef<NamedDecl *> DeclContextLookupConstResult; 100649f28ca787d8db7cac3c8898334f70ea55374c98Chris Lattner 1007b048c9835969c4f7fe06264748be18ed4b442116Chris Lattner/// DeclContext - This is used only as base class of specific decl types that 10081ad4dd78ec53c24ea9e752b216035d7aa666fe49Argyrios Kyrtzidis/// can act as declaration contexts. These decls are (only the top classes 10091ad4dd78ec53c24ea9e752b216035d7aa666fe49Argyrios Kyrtzidis/// that directly derive from DeclContext are mentioned, not their subclasses): 10100ed844b04ea4387caa4e1cf3dc375d269657536bChris Lattner/// 1011ef177820100ab583b08fd3056e2a5a52ee4b1629Argyrios Kyrtzidis/// TranslationUnitDecl 10122d1c5d313cd0c229cc614e74baa4c5756a4b46f4Argyrios Kyrtzidis/// NamespaceDecl 10130ed844b04ea4387caa4e1cf3dc375d269657536bChris Lattner/// FunctionDecl 10141ad4dd78ec53c24ea9e752b216035d7aa666fe49Argyrios Kyrtzidis/// TagDecl 1015d3bb44f0f1a83cb208d3e61ee80afe6a4d20d2d8Argyrios Kyrtzidis/// ObjCMethodDecl 10161ad4dd78ec53c24ea9e752b216035d7aa666fe49Argyrios Kyrtzidis/// ObjCContainerDecl 1017074149e11baf5f7db12f84efd5c34ba6e35d5cdfDouglas Gregor/// LinkageSpecDecl 101856ee6896f2efebffb4a2cce5a7610cdf1eddbbbeSteve Naroff/// BlockDecl 10191ad4dd78ec53c24ea9e752b216035d7aa666fe49Argyrios Kyrtzidis/// 1020b048c9835969c4f7fe06264748be18ed4b442116Chris Lattnerclass DeclContext { 10210ed844b04ea4387caa4e1cf3dc375d269657536bChris Lattner /// DeclKind - This indicates which class this is. 102235043e56150dc4eda882acd5ddfe0f8e3c0a8cb1John McCall unsigned DeclKind : 8; 10230ed844b04ea4387caa4e1cf3dc375d269657536bChris Lattner 10242cf2634ffdb4f7c8d46cef3f8e60a55993f1c57aDouglas Gregor /// \brief Whether this declaration context also has some external 10252cf2634ffdb4f7c8d46cef3f8e60a55993f1c57aDouglas Gregor /// storage that contains additional declarations that are lexically 10262cf2634ffdb4f7c8d46cef3f8e60a55993f1c57aDouglas Gregor /// part of this context. 1027bbcd0f3ba215d5a8857b224e32b0330586a00dc6Richard Smith mutable bool ExternalLexicalStorage : 1; 10282cf2634ffdb4f7c8d46cef3f8e60a55993f1c57aDouglas Gregor 10292cf2634ffdb4f7c8d46cef3f8e60a55993f1c57aDouglas Gregor /// \brief Whether this declaration context also has some external 10302cf2634ffdb4f7c8d46cef3f8e60a55993f1c57aDouglas Gregor /// storage that contains additional declarations that are visible 10312cf2634ffdb4f7c8d46cef3f8e60a55993f1c57aDouglas Gregor /// in this context. 1032bbcd0f3ba215d5a8857b224e32b0330586a00dc6Richard Smith mutable bool ExternalVisibleStorage : 1; 1033bbcd0f3ba215d5a8857b224e32b0330586a00dc6Richard Smith 1034bbcd0f3ba215d5a8857b224e32b0330586a00dc6Richard Smith /// \brief Whether this declaration context has had external visible 1035bbcd0f3ba215d5a8857b224e32b0330586a00dc6Richard Smith /// storage added since the last lookup. In this case, \c LookupPtr's 1036bbcd0f3ba215d5a8857b224e32b0330586a00dc6Richard Smith /// invariant may not hold and needs to be fixed before we perform 1037bbcd0f3ba215d5a8857b224e32b0330586a00dc6Richard Smith /// another lookup. 1038bbcd0f3ba215d5a8857b224e32b0330586a00dc6Richard Smith mutable bool NeedToReconcileExternalVisibleStorage : 1; 10392cf2634ffdb4f7c8d46cef3f8e60a55993f1c57aDouglas Gregor 1040c36c540c5bfce941f3d892919394d092491211f2Douglas Gregor /// \brief Pointer to the data structure used to lookup declarations 10410c01d18094100db92d38daa923c95661512db203John McCall /// within this context (or a DependentStoredDeclsMap if this is a 1042c5d3e80c64af9604ad798282cc6861f9cd2afc52Richard Smith /// dependent context), and a bool indicating whether we have lazily 1043c5d3e80c64af9604ad798282cc6861f9cd2afc52Richard Smith /// omitted any declarations from the map. We maintain the invariant 1044bbcd0f3ba215d5a8857b224e32b0330586a00dc6Richard Smith /// that, if the map contains an entry for a DeclarationName (and we 1045bbcd0f3ba215d5a8857b224e32b0330586a00dc6Richard Smith /// haven't lazily omitted anything), then it contains all relevant 1046bbcd0f3ba215d5a8857b224e32b0330586a00dc6Richard Smith /// entries for that name. 1047c5d3e80c64af9604ad798282cc6861f9cd2afc52Richard Smith mutable llvm::PointerIntPair<StoredDeclsMap*, 1, bool> LookupPtr; 104844b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor 1049eb5e9986e577b1e2bff3cca5973a2494fb593fbbArgyrios Kyrtzidisprotected: 10506037fcba3431b47de1a994c9b286feac17894effDouglas Gregor /// FirstDecl - The first declaration stored within this declaration 10516037fcba3431b47de1a994c9b286feac17894effDouglas Gregor /// context. 10522cf2634ffdb4f7c8d46cef3f8e60a55993f1c57aDouglas Gregor mutable Decl *FirstDecl; 10536037fcba3431b47de1a994c9b286feac17894effDouglas Gregor 10546037fcba3431b47de1a994c9b286feac17894effDouglas Gregor /// LastDecl - The last declaration stored within this declaration 10556037fcba3431b47de1a994c9b286feac17894effDouglas Gregor /// context. FIXME: We could probably cache this value somewhere 10566037fcba3431b47de1a994c9b286feac17894effDouglas Gregor /// outside of the DeclContext, to reduce the size of DeclContext by 10576037fcba3431b47de1a994c9b286feac17894effDouglas Gregor /// another pointer. 10582cf2634ffdb4f7c8d46cef3f8e60a55993f1c57aDouglas Gregor mutable Decl *LastDecl; 10597643536c36b0449256d5ee2efc03a7e4a784a0b3Argyrios Kyrtzidis 106076bd1f387e6a7b7abfe53f63b3bd429b97bb80f0John McCall friend class ExternalASTSource; 1061e7bae1597f4a7088f5048695c14a8f1013a86108Richard Smith friend class ASTDeclReader; 1062643586fe4fcd42b0978efd3566832ab4dce50367Argyrios Kyrtzidis friend class ASTWriter; 106376bd1f387e6a7b7abfe53f63b3bd429b97bb80f0John McCall 1064eb5e9986e577b1e2bff3cca5973a2494fb593fbbArgyrios Kyrtzidis /// \brief Build up a chain of declarations. 1065eb5e9986e577b1e2bff3cca5973a2494fb593fbbArgyrios Kyrtzidis /// 1066eb5e9986e577b1e2bff3cca5973a2494fb593fbbArgyrios Kyrtzidis /// \returns the first/last pair of declarations. 1067eb5e9986e577b1e2bff3cca5973a2494fb593fbbArgyrios Kyrtzidis static std::pair<Decl *, Decl *> 1068341785ec52f87c0803ba52dc88faac4e136f8593Bill Wendling BuildDeclChain(ArrayRef<Decl*> Decls, bool FieldsAlreadyLoaded); 1069eb5e9986e577b1e2bff3cca5973a2494fb593fbbArgyrios Kyrtzidis 1070bbcd0f3ba215d5a8857b224e32b0330586a00dc6Richard Smith DeclContext(Decl::Kind K) 1071bbcd0f3ba215d5a8857b224e32b0330586a00dc6Richard Smith : DeclKind(K), ExternalLexicalStorage(false), 1072bbcd0f3ba215d5a8857b224e32b0330586a00dc6Richard Smith ExternalVisibleStorage(false), 10736bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines NeedToReconcileExternalVisibleStorage(false), LookupPtr(nullptr, false), 10746bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines FirstDecl(nullptr), LastDecl(nullptr) {} 107544b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor 10760ed844b04ea4387caa4e1cf3dc375d269657536bChris Lattnerpublic: 107744b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor ~DeclContext(); 107844b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor 10799b9ca01ff3136a7539dc08a4c4e1a3dd8c8d3a7dArgyrios Kyrtzidis Decl::Kind getDeclKind() const { 108035043e56150dc4eda882acd5ddfe0f8e3c0a8cb1John McCall return static_cast<Decl::Kind>(DeclKind); 10819b9ca01ff3136a7539dc08a4c4e1a3dd8c8d3a7dArgyrios Kyrtzidis } 10820a4739305a984ef9b821cedad5f4fe235eb6ef7dSteve Naroff const char *getDeclKindName() const; 10839b9ca01ff3136a7539dc08a4c4e1a3dd8c8d3a7dArgyrios Kyrtzidis 1084305ec42f971a2b3e114eb35256c23e955c497a1cArgyrios Kyrtzidis /// getParent - Returns the containing DeclContext. 10850cf2b1990c82121d03a004dafe498ba43bf4b42aChris Lattner DeclContext *getParent() { 1086305ec42f971a2b3e114eb35256c23e955c497a1cArgyrios Kyrtzidis return cast<Decl>(this)->getDeclContext(); 1087305ec42f971a2b3e114eb35256c23e955c497a1cArgyrios Kyrtzidis } 10880cf2b1990c82121d03a004dafe498ba43bf4b42aChris Lattner const DeclContext *getParent() const { 10890cf2b1990c82121d03a004dafe498ba43bf4b42aChris Lattner return const_cast<DeclContext*>(this)->getParent(); 1090d2595ecce5f8350e485c83bfe767549a522b2802Argyrios Kyrtzidis } 10911eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 109277407b802130b1c44b1f63b855722a5376f57bcaArgyrios Kyrtzidis /// getLexicalParent - Returns the containing lexical DeclContext. May be 109344b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor /// different from getParent, e.g.: 109444b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor /// 109544b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor /// namespace A { 109644b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor /// struct S; 109744b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor /// } 109844b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor /// struct A::S {}; // getParent() == namespace 'A' 109977407b802130b1c44b1f63b855722a5376f57bcaArgyrios Kyrtzidis /// // getLexicalParent() == translation unit 110077407b802130b1c44b1f63b855722a5376f57bcaArgyrios Kyrtzidis /// 110177407b802130b1c44b1f63b855722a5376f57bcaArgyrios Kyrtzidis DeclContext *getLexicalParent() { 11020cf2b1990c82121d03a004dafe498ba43bf4b42aChris Lattner return cast<Decl>(this)->getLexicalDeclContext(); 110377407b802130b1c44b1f63b855722a5376f57bcaArgyrios Kyrtzidis } 11040cf2b1990c82121d03a004dafe498ba43bf4b42aChris Lattner const DeclContext *getLexicalParent() const { 11050cf2b1990c82121d03a004dafe498ba43bf4b42aChris Lattner return const_cast<DeclContext*>(this)->getLexicalParent(); 11061eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump } 1107048f30a483ca352ee7f235a5be181b9dcc5f9d9cArgyrios Kyrtzidis 1108e942bbe02b6fb332d1f13d38c6e1980b416cf89aDouglas Gregor DeclContext *getLookupParent(); 1109ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie 1110e942bbe02b6fb332d1f13d38c6e1980b416cf89aDouglas Gregor const DeclContext *getLookupParent() const { 1111e942bbe02b6fb332d1f13d38c6e1980b416cf89aDouglas Gregor return const_cast<DeclContext*>(this)->getLookupParent(); 1112e942bbe02b6fb332d1f13d38c6e1980b416cf89aDouglas Gregor } 1113ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie 1114048f30a483ca352ee7f235a5be181b9dcc5f9d9cArgyrios Kyrtzidis ASTContext &getParentASTContext() const { 1115048f30a483ca352ee7f235a5be181b9dcc5f9d9cArgyrios Kyrtzidis return cast<Decl>(this)->getASTContext(); 1116048f30a483ca352ee7f235a5be181b9dcc5f9d9cArgyrios Kyrtzidis } 1117048f30a483ca352ee7f235a5be181b9dcc5f9d9cArgyrios Kyrtzidis 1118aab9e315184d344bbd733f13b68915d02db7b32bJohn McCall bool isClosure() const { 1119aab9e315184d344bbd733f13b68915d02db7b32bJohn McCall return DeclKind == Decl::Block; 1120aab9e315184d344bbd733f13b68915d02db7b32bJohn McCall } 1121aab9e315184d344bbd733f13b68915d02db7b32bJohn McCall 1122a28948f34817476d02412fa204cae038e228c827Fariborz Jahanian bool isObjCContainer() const { 112380f775359357f90f34b6adb8104506f13a816a67Fariborz Jahanian switch (DeclKind) { 112480f775359357f90f34b6adb8104506f13a816a67Fariborz Jahanian case Decl::ObjCCategory: 112580f775359357f90f34b6adb8104506f13a816a67Fariborz Jahanian case Decl::ObjCCategoryImpl: 112680f775359357f90f34b6adb8104506f13a816a67Fariborz Jahanian case Decl::ObjCImplementation: 112780f775359357f90f34b6adb8104506f13a816a67Fariborz Jahanian case Decl::ObjCInterface: 112880f775359357f90f34b6adb8104506f13a816a67Fariborz Jahanian case Decl::ObjCProtocol: 112980f775359357f90f34b6adb8104506f13a816a67Fariborz Jahanian return true; 113080f775359357f90f34b6adb8104506f13a816a67Fariborz Jahanian } 113180f775359357f90f34b6adb8104506f13a816a67Fariborz Jahanian return false; 1132a28948f34817476d02412fa204cae038e228c827Fariborz Jahanian } 1133a28948f34817476d02412fa204cae038e228c827Fariborz Jahanian 11340ed844b04ea4387caa4e1cf3dc375d269657536bChris Lattner bool isFunctionOrMethod() const { 11350ed844b04ea4387caa4e1cf3dc375d269657536bChris Lattner switch (DeclKind) { 11360cf2b1990c82121d03a004dafe498ba43bf4b42aChris Lattner case Decl::Block: 11376afcf8875d4e447645cd7bf3733dd8e2eb8455dcTareq A. Siraj case Decl::Captured: 11380cf2b1990c82121d03a004dafe498ba43bf4b42aChris Lattner case Decl::ObjCMethod: 11390cf2b1990c82121d03a004dafe498ba43bf4b42aChris Lattner return true; 11400cf2b1990c82121d03a004dafe498ba43bf4b42aChris Lattner default: 11419a55591af3e5506b95a9718e15380129fbfc5ebcSean Hunt return DeclKind >= Decl::firstFunction && DeclKind <= Decl::lastFunction; 11420ed844b04ea4387caa4e1cf3dc375d269657536bChris Lattner } 11430ed844b04ea4387caa4e1cf3dc375d269657536bChris Lattner } 11440ed844b04ea4387caa4e1cf3dc375d269657536bChris Lattner 1145ef6e647b8d3268a765c2c4dd7f8a73cad281a8e6Argyrios Kyrtzidis bool isFileContext() const { 1146ef6e647b8d3268a765c2c4dd7f8a73cad281a8e6Argyrios Kyrtzidis return DeclKind == Decl::TranslationUnit || DeclKind == Decl::Namespace; 1147ef6e647b8d3268a765c2c4dd7f8a73cad281a8e6Argyrios Kyrtzidis } 1148ef6e647b8d3268a765c2c4dd7f8a73cad281a8e6Argyrios Kyrtzidis 11495f2bfd4811996abb783aa6c7254c56baa6930e8cDouglas Gregor bool isTranslationUnit() const { 11505f2bfd4811996abb783aa6c7254c56baa6930e8cDouglas Gregor return DeclKind == Decl::TranslationUnit; 11515f2bfd4811996abb783aa6c7254c56baa6930e8cDouglas Gregor } 11525f2bfd4811996abb783aa6c7254c56baa6930e8cDouglas Gregor 1153bcbffc46f1ad3796c4582fa1e3a9113b5aa26061Douglas Gregor bool isRecord() const { 11549a55591af3e5506b95a9718e15380129fbfc5ebcSean Hunt return DeclKind >= Decl::firstRecord && DeclKind <= Decl::lastRecord; 1155c7ed9c60b8ee04b119e23441cae2cfec74536ba9Argyrios Kyrtzidis } 1156c7ed9c60b8ee04b119e23441cae2cfec74536ba9Argyrios Kyrtzidis 115744b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor bool isNamespace() const { 115844b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor return DeclKind == Decl::Namespace; 115944b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor } 116044b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor 11616bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines bool isStdNamespace() const; 11626bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines 1163410c4f2eb5e6a8c2318cacb9a6751f1b4fcff166Sebastian Redl bool isInlineNamespace() const; 1164410c4f2eb5e6a8c2318cacb9a6751f1b4fcff166Sebastian Redl 1165bc221637f5ed3538b8495dd13b831c11e821c712Douglas Gregor /// \brief Determines whether this context is dependent on a 1166bc221637f5ed3538b8495dd13b831c11e821c712Douglas Gregor /// template parameter. 1167bc221637f5ed3538b8495dd13b831c11e821c712Douglas Gregor bool isDependentContext() const; 1168bc221637f5ed3538b8495dd13b831c11e821c712Douglas Gregor 1169074149e11baf5f7db12f84efd5c34ba6e35d5cdfDouglas Gregor /// isTransparentContext - Determines whether this context is a 1170074149e11baf5f7db12f84efd5c34ba6e35d5cdfDouglas Gregor /// "transparent" context, meaning that the members declared in this 1171074149e11baf5f7db12f84efd5c34ba6e35d5cdfDouglas Gregor /// context are semantically declared in the nearest enclosing 1172074149e11baf5f7db12f84efd5c34ba6e35d5cdfDouglas Gregor /// non-transparent (opaque) context but are lexically declared in 1173074149e11baf5f7db12f84efd5c34ba6e35d5cdfDouglas Gregor /// this context. For example, consider the enumerators of an 11741eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /// enumeration type: 1175074149e11baf5f7db12f84efd5c34ba6e35d5cdfDouglas Gregor /// @code 1176074149e11baf5f7db12f84efd5c34ba6e35d5cdfDouglas Gregor /// enum E { 11771eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /// Val1 1178074149e11baf5f7db12f84efd5c34ba6e35d5cdfDouglas Gregor /// }; 1179074149e11baf5f7db12f84efd5c34ba6e35d5cdfDouglas Gregor /// @endcode 1180074149e11baf5f7db12f84efd5c34ba6e35d5cdfDouglas Gregor /// Here, E is a transparent context, so its enumerator (Val1) will 1181074149e11baf5f7db12f84efd5c34ba6e35d5cdfDouglas Gregor /// appear (semantically) that it is in the same context of E. 1182074149e11baf5f7db12f84efd5c34ba6e35d5cdfDouglas Gregor /// Examples of transparent contexts include: enumerations (except for 1183410c4f2eb5e6a8c2318cacb9a6751f1b4fcff166Sebastian Redl /// C++0x scoped enums), and C++ linkage specifications. 1184074149e11baf5f7db12f84efd5c34ba6e35d5cdfDouglas Gregor bool isTransparentContext() const; 1185074149e11baf5f7db12f84efd5c34ba6e35d5cdfDouglas Gregor 1186142ab06ffb2ec286917554aa5d945323a1ebf359Serge Pavlov /// \brief Determines whether this context or some of its ancestors is a 1187142ab06ffb2ec286917554aa5d945323a1ebf359Serge Pavlov /// linkage specification context that specifies C linkage. 1188142ab06ffb2ec286917554aa5d945323a1ebf359Serge Pavlov bool isExternCContext() const; 1189142ab06ffb2ec286917554aa5d945323a1ebf359Serge Pavlov 1190142ab06ffb2ec286917554aa5d945323a1ebf359Serge Pavlov /// \brief Determines whether this context or some of its ancestors is a 1191142ab06ffb2ec286917554aa5d945323a1ebf359Serge Pavlov /// linkage specification context that specifies C++ linkage. 1192142ab06ffb2ec286917554aa5d945323a1ebf359Serge Pavlov bool isExternCXXContext() const; 1193142ab06ffb2ec286917554aa5d945323a1ebf359Serge Pavlov 119461481dad22ebca3fba3fe4fb67a3b926d0895e9cDouglas Gregor /// \brief Determine whether this declaration context is equivalent 119561481dad22ebca3fba3fe4fb67a3b926d0895e9cDouglas Gregor /// to the declaration context DC. 11967a126a474fdde06382b315b4e3d8ef0a21d4dc31Sebastian Redl bool Equals(const DeclContext *DC) const { 1197dbdf5e7d0b6f1f8d8c496c1a0ada6f706cddf100Douglas Gregor return DC && this->getPrimaryContext() == DC->getPrimaryContext(); 119861481dad22ebca3fba3fe4fb67a3b926d0895e9cDouglas Gregor } 11991eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 12006dd38daf1495367db8fe9e9a5cacb7420cf08e27Douglas Gregor /// \brief Determine whether this declaration context encloses the 12016dd38daf1495367db8fe9e9a5cacb7420cf08e27Douglas Gregor /// declaration context DC. 12027a126a474fdde06382b315b4e3d8ef0a21d4dc31Sebastian Redl bool Encloses(const DeclContext *DC) const; 1203ef6e647b8d3268a765c2c4dd7f8a73cad281a8e6Argyrios Kyrtzidis 12044b9c2d235fb9449e249d74f48ecfec601650de93John McCall /// \brief Find the nearest non-closure ancestor of this context, 12054b9c2d235fb9449e249d74f48ecfec601650de93John McCall /// i.e. the innermost semantic parent of this context which is not 12064b9c2d235fb9449e249d74f48ecfec601650de93John McCall /// a closure. A context may be its own non-closure ancestor. 1207f5ebf9bf1df10ac15ba32a4b24dfe171b7848c58John McCall Decl *getNonClosureAncestor(); 1208f5ebf9bf1df10ac15ba32a4b24dfe171b7848c58John McCall const Decl *getNonClosureAncestor() const { 12094b9c2d235fb9449e249d74f48ecfec601650de93John McCall return const_cast<DeclContext*>(this)->getNonClosureAncestor(); 12104b9c2d235fb9449e249d74f48ecfec601650de93John McCall } 12114b9c2d235fb9449e249d74f48ecfec601650de93John McCall 121244b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor /// getPrimaryContext - There may be many different 121344b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor /// declarations of the same entity (including forward declarations 121444b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor /// of classes, multiple definitions of namespaces, etc.), each with 121544b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor /// a different set of declarations. This routine returns the 121644b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor /// "primary" DeclContext structure, which will contain the 121744b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor /// information needed to perform name lookup into this context. 12180701bbb228dfd87e1fe82a0a4b7b9facfecb43daSteve Naroff DeclContext *getPrimaryContext(); 12190c01d18094100db92d38daa923c95661512db203John McCall const DeclContext *getPrimaryContext() const { 12200c01d18094100db92d38daa923c95661512db203John McCall return const_cast<DeclContext*>(this)->getPrimaryContext(); 12210c01d18094100db92d38daa923c95661512db203John McCall } 122244b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor 12237a126a474fdde06382b315b4e3d8ef0a21d4dc31Sebastian Redl /// getRedeclContext - Retrieve the context in which an entity conflicts with 12247a126a474fdde06382b315b4e3d8ef0a21d4dc31Sebastian Redl /// other entities of the same name, or where it is a redeclaration if the 1225410c4f2eb5e6a8c2318cacb9a6751f1b4fcff166Sebastian Redl /// two entities are compatible. This skips through transparent contexts. 12267a126a474fdde06382b315b4e3d8ef0a21d4dc31Sebastian Redl DeclContext *getRedeclContext(); 12277a126a474fdde06382b315b4e3d8ef0a21d4dc31Sebastian Redl const DeclContext *getRedeclContext() const { 12287a126a474fdde06382b315b4e3d8ef0a21d4dc31Sebastian Redl return const_cast<DeclContext *>(this)->getRedeclContext(); 122917a9b9e3ee75f5dbb4819cc8ebf40eec8015f84aDouglas Gregor } 12301eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 123188b7094185b9d4fe9820c731b6936d8d37f6143eDouglas Gregor /// \brief Retrieve the nearest enclosing namespace context. 123288b7094185b9d4fe9820c731b6936d8d37f6143eDouglas Gregor DeclContext *getEnclosingNamespaceContext(); 123388b7094185b9d4fe9820c731b6936d8d37f6143eDouglas Gregor const DeclContext *getEnclosingNamespaceContext() const { 123488b7094185b9d4fe9820c731b6936d8d37f6143eDouglas Gregor return const_cast<DeclContext *>(this)->getEnclosingNamespaceContext(); 123588b7094185b9d4fe9820c731b6936d8d37f6143eDouglas Gregor } 123688b7094185b9d4fe9820c731b6936d8d37f6143eDouglas Gregor 12377a126a474fdde06382b315b4e3d8ef0a21d4dc31Sebastian Redl /// \brief Test if this context is part of the enclosing namespace set of 12387a126a474fdde06382b315b4e3d8ef0a21d4dc31Sebastian Redl /// the context NS, as defined in C++0x [namespace.def]p9. If either context 12397a126a474fdde06382b315b4e3d8ef0a21d4dc31Sebastian Redl /// isn't a namespace, this is equivalent to Equals(). 12407a126a474fdde06382b315b4e3d8ef0a21d4dc31Sebastian Redl /// 12417a126a474fdde06382b315b4e3d8ef0a21d4dc31Sebastian Redl /// The enclosing namespace set of a namespace is the namespace and, if it is 12427a126a474fdde06382b315b4e3d8ef0a21d4dc31Sebastian Redl /// inline, its enclosing namespace, recursively. 12437a126a474fdde06382b315b4e3d8ef0a21d4dc31Sebastian Redl bool InEnclosingNamespaceSetOf(const DeclContext *NS) const; 12447a126a474fdde06382b315b4e3d8ef0a21d4dc31Sebastian Redl 124518483f583333f8d940393e64ce111c6979639665James Dennett /// \brief Collects all of the declaration contexts that are semantically 1246f5c9f9fd6f5e2850b9b0f19283430245b696c6e5Douglas Gregor /// connected to this declaration context. 1247f5c9f9fd6f5e2850b9b0f19283430245b696c6e5Douglas Gregor /// 1248f5c9f9fd6f5e2850b9b0f19283430245b696c6e5Douglas Gregor /// For declaration contexts that have multiple semantically connected but 1249f5c9f9fd6f5e2850b9b0f19283430245b696c6e5Douglas Gregor /// syntactically distinct contexts, such as C++ namespaces, this routine 1250f5c9f9fd6f5e2850b9b0f19283430245b696c6e5Douglas Gregor /// retrieves the complete set of such declaration contexts in source order. 1251f5c9f9fd6f5e2850b9b0f19283430245b696c6e5Douglas Gregor /// For example, given: 1252f5c9f9fd6f5e2850b9b0f19283430245b696c6e5Douglas Gregor /// 1253f5c9f9fd6f5e2850b9b0f19283430245b696c6e5Douglas Gregor /// \code 125444b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor /// namespace N { 125544b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor /// int x; 125644b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor /// } 125744b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor /// namespace N { 125844b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor /// int y; 125944b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor /// } 1260f5c9f9fd6f5e2850b9b0f19283430245b696c6e5Douglas Gregor /// \endcode 1261f5c9f9fd6f5e2850b9b0f19283430245b696c6e5Douglas Gregor /// 1262f5c9f9fd6f5e2850b9b0f19283430245b696c6e5Douglas Gregor /// The \c Contexts parameter will contain both definitions of N. 1263f5c9f9fd6f5e2850b9b0f19283430245b696c6e5Douglas Gregor /// 1264f5c9f9fd6f5e2850b9b0f19283430245b696c6e5Douglas Gregor /// \param Contexts Will be cleared and set to the set of declaration 1265f5c9f9fd6f5e2850b9b0f19283430245b696c6e5Douglas Gregor /// contexts that are semanticaly connected to this declaration context, 1266f5c9f9fd6f5e2850b9b0f19283430245b696c6e5Douglas Gregor /// in source order, including this context (which may be the only result, 1267f5c9f9fd6f5e2850b9b0f19283430245b696c6e5Douglas Gregor /// for non-namespace contexts). 1268cfa88f893915ceb8ae4ce2f17c46c24a4d67502fDmitri Gribenko void collectAllContexts(SmallVectorImpl<DeclContext *> &Contexts); 126944b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor 127044b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor /// decl_iterator - Iterates through the declarations stored 127144b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor /// within this context. 12726037fcba3431b47de1a994c9b286feac17894effDouglas Gregor class decl_iterator { 12736037fcba3431b47de1a994c9b286feac17894effDouglas Gregor /// Current - The current declaration. 12744afa39deaa245592977136d367251ee2c173dd8dDouglas Gregor Decl *Current; 12756037fcba3431b47de1a994c9b286feac17894effDouglas Gregor 12766037fcba3431b47de1a994c9b286feac17894effDouglas Gregor public: 1277581deb3da481053c4993c7600f97acf7768caac5David Blaikie typedef Decl *value_type; 1278581deb3da481053c4993c7600f97acf7768caac5David Blaikie typedef const value_type &reference; 1279581deb3da481053c4993c7600f97acf7768caac5David Blaikie typedef const value_type *pointer; 12806037fcba3431b47de1a994c9b286feac17894effDouglas Gregor typedef std::forward_iterator_tag iterator_category; 12816037fcba3431b47de1a994c9b286feac17894effDouglas Gregor typedef std::ptrdiff_t difference_type; 12826037fcba3431b47de1a994c9b286feac17894effDouglas Gregor 12836bcf27bb9a4b5c3f79cb44c0e4654a6d7619ad89Stephen Hines decl_iterator() : Current(nullptr) { } 12844afa39deaa245592977136d367251ee2c173dd8dDouglas Gregor explicit decl_iterator(Decl *C) : Current(C) { } 12856037fcba3431b47de1a994c9b286feac17894effDouglas Gregor 12866037fcba3431b47de1a994c9b286feac17894effDouglas Gregor reference operator*() const { return Current; } 1287581deb3da481053c4993c7600f97acf7768caac5David Blaikie // This doesn't meet the iterator requirements, but it's convenient 1288581deb3da481053c4993c7600f97acf7768caac5David Blaikie value_type operator->() const { return Current; } 12896037fcba3431b47de1a994c9b286feac17894effDouglas Gregor 129096f4468b6b1bf69bb01c1207f716a3ffaeb4a8d3Chris Lattner decl_iterator& operator++() { 1291244a67d911d08c3757a18ad666e4a268cf3ee285Chris Lattner Current = Current->getNextDeclInContext(); 129296f4468b6b1bf69bb01c1207f716a3ffaeb4a8d3Chris Lattner return *this; 129396f4468b6b1bf69bb01c1207f716a3ffaeb4a8d3Chris Lattner } 12946037fcba3431b47de1a994c9b286feac17894effDouglas Gregor 12956037fcba3431b47de1a994c9b286feac17894effDouglas Gregor decl_iterator operator++(int) { 12966037fcba3431b47de1a994c9b286feac17894effDouglas Gregor decl_iterator tmp(*this); 12976037fcba3431b47de1a994c9b286feac17894effDouglas Gregor ++(*this); 12986037fcba3431b47de1a994c9b286feac17894effDouglas Gregor return tmp; 12996037fcba3431b47de1a994c9b286feac17894effDouglas Gregor } 13006037fcba3431b47de1a994c9b286feac17894effDouglas Gregor 13011eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump friend bool operator==(decl_iterator x, decl_iterator y) { 13026037fcba3431b47de1a994c9b286feac17894effDouglas Gregor return x.Current == y.Current; 13036037fcba3431b47de1a994c9b286feac17894effDouglas Gregor } 13041eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump friend bool operator!=(decl_iterator x, decl_iterator y) { 13056037fcba3431b47de1a994c9b286feac17894effDouglas Gregor return x.Current != y.Current; 13066037fcba3431b47de1a994c9b286feac17894effDouglas Gregor } 13076037fcba3431b47de1a994c9b286feac17894effDouglas Gregor }; 130844b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor 1309651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines typedef llvm::iterator_range<decl_iterator> decl_range; 1310651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines 131144b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor /// decls_begin/decls_end - Iterate over the declarations stored in 13121eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump /// this context. 1313651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines decl_range decls() const { return decl_range(decls_begin(), decls_end()); } 131417945a0f64fe03ff6ec0c2146005a87636e3ac12Argyrios Kyrtzidis decl_iterator decls_begin() const; 1315581deb3da481053c4993c7600f97acf7768caac5David Blaikie decl_iterator decls_end() const { return decl_iterator(); } 131617945a0f64fe03ff6ec0c2146005a87636e3ac12Argyrios Kyrtzidis bool decls_empty() const; 131744b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor 1318681d7237e1014bf64dd5ead6bf74ae55cdd19e61Sebastian Redl /// noload_decls_begin/end - Iterate over the declarations stored in this 1319681d7237e1014bf64dd5ead6bf74ae55cdd19e61Sebastian Redl /// context that are currently loaded; don't attempt to retrieve anything 1320681d7237e1014bf64dd5ead6bf74ae55cdd19e61Sebastian Redl /// from an external source. 1321651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines decl_range noload_decls() const { 1322651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines return decl_range(noload_decls_begin(), noload_decls_end()); 1323651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines } 1324651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines decl_iterator noload_decls_begin() const { return decl_iterator(FirstDecl); } 1325581deb3da481053c4993c7600f97acf7768caac5David Blaikie decl_iterator noload_decls_end() const { return decl_iterator(); } 1326681d7237e1014bf64dd5ead6bf74ae55cdd19e61Sebastian Redl 1327f8d49f64ef6ab7e632717a31631fc289aab69428Douglas Gregor /// specific_decl_iterator - Iterates over a subrange of 1328f8d49f64ef6ab7e632717a31631fc289aab69428Douglas Gregor /// declarations stored in a DeclContext, providing only those that 1329669c9a28fa4be35e6b6322aa7f2f3b2968189b80Douglas Gregor /// are of type SpecificDecl (or a class derived from it). This 1330f8d49f64ef6ab7e632717a31631fc289aab69428Douglas Gregor /// iterator is used, for example, to provide iteration over just 1331669c9a28fa4be35e6b6322aa7f2f3b2968189b80Douglas Gregor /// the fields within a RecordDecl (with SpecificDecl = FieldDecl). 1332f8d49f64ef6ab7e632717a31631fc289aab69428Douglas Gregor template<typename SpecificDecl> 1333f8d49f64ef6ab7e632717a31631fc289aab69428Douglas Gregor class specific_decl_iterator { 1334f8d49f64ef6ab7e632717a31631fc289aab69428Douglas Gregor /// Current - The current, underlying declaration iterator, which 1335d6f0b4e97e681ea5d165125960f34b3b8c19e1dcDouglas Gregor /// will either be NULL or will point to a declaration of 1336f8d49f64ef6ab7e632717a31631fc289aab69428Douglas Gregor /// type SpecificDecl. 1337f8d49f64ef6ab7e632717a31631fc289aab69428Douglas Gregor DeclContext::decl_iterator Current; 13381eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1339f8d49f64ef6ab7e632717a31631fc289aab69428Douglas Gregor /// SkipToNextDecl - Advances the current position up to the next 1340f8d49f64ef6ab7e632717a31631fc289aab69428Douglas Gregor /// declaration of type SpecificDecl that also meets the criteria 1341f8d49f64ef6ab7e632717a31631fc289aab69428Douglas Gregor /// required by Acceptable. 1342f8d49f64ef6ab7e632717a31631fc289aab69428Douglas Gregor void SkipToNextDecl() { 1343669c9a28fa4be35e6b6322aa7f2f3b2968189b80Douglas Gregor while (*Current && !isa<SpecificDecl>(*Current)) 1344f8d49f64ef6ab7e632717a31631fc289aab69428Douglas Gregor ++Current; 1345f8d49f64ef6ab7e632717a31631fc289aab69428Douglas Gregor } 1346f8d49f64ef6ab7e632717a31631fc289aab69428Douglas Gregor 1347f8d49f64ef6ab7e632717a31631fc289aab69428Douglas Gregor public: 1348581deb3da481053c4993c7600f97acf7768caac5David Blaikie typedef SpecificDecl *value_type; 1349581deb3da481053c4993c7600f97acf7768caac5David Blaikie // TODO: Add reference and pointer typedefs (with some appropriate proxy 1350581deb3da481053c4993c7600f97acf7768caac5David Blaikie // type) if we ever have a need for them. 1351581deb3da481053c4993c7600f97acf7768caac5David Blaikie typedef void reference; 1352581deb3da481053c4993c7600f97acf7768caac5David Blaikie typedef void pointer; 1353f8d49f64ef6ab7e632717a31631fc289aab69428Douglas Gregor typedef std::iterator_traits<DeclContext::decl_iterator>::difference_type 1354f8d49f64ef6ab7e632717a31631fc289aab69428Douglas Gregor difference_type; 1355f8d49f64ef6ab7e632717a31631fc289aab69428Douglas Gregor typedef std::forward_iterator_tag iterator_category; 1356f8d49f64ef6ab7e632717a31631fc289aab69428Douglas Gregor 1357669c9a28fa4be35e6b6322aa7f2f3b2968189b80Douglas Gregor specific_decl_iterator() : Current() { } 1358f8d49f64ef6ab7e632717a31631fc289aab69428Douglas Gregor 1359f8d49f64ef6ab7e632717a31631fc289aab69428Douglas Gregor /// specific_decl_iterator - Construct a new iterator over a 1360d6f0b4e97e681ea5d165125960f34b3b8c19e1dcDouglas Gregor /// subset of the declarations the range [C, 1361d6f0b4e97e681ea5d165125960f34b3b8c19e1dcDouglas Gregor /// end-of-declarations). If A is non-NULL, it is a pointer to a 1362d6f0b4e97e681ea5d165125960f34b3b8c19e1dcDouglas Gregor /// member function of SpecificDecl that should return true for 1363d6f0b4e97e681ea5d165125960f34b3b8c19e1dcDouglas Gregor /// all of the SpecificDecl instances that will be in the subset 1364d6f0b4e97e681ea5d165125960f34b3b8c19e1dcDouglas Gregor /// of iterators. For example, if you want Objective-C instance 1365d6f0b4e97e681ea5d165125960f34b3b8c19e1dcDouglas Gregor /// methods, SpecificDecl will be ObjCMethodDecl and A will be 1366d6f0b4e97e681ea5d165125960f34b3b8c19e1dcDouglas Gregor /// &ObjCMethodDecl::isInstanceMethod. 1367669c9a28fa4be35e6b6322aa7f2f3b2968189b80Douglas Gregor explicit specific_decl_iterator(DeclContext::decl_iterator C) : Current(C) { 1368f8d49f64ef6ab7e632717a31631fc289aab69428Douglas Gregor SkipToNextDecl(); 1369f8d49f64ef6ab7e632717a31631fc289aab69428Douglas Gregor } 1370f8d49f64ef6ab7e632717a31631fc289aab69428Douglas Gregor 1371581deb3da481053c4993c7600f97acf7768caac5David Blaikie value_type operator*() const { return cast<SpecificDecl>(*Current); } 1372581deb3da481053c4993c7600f97acf7768caac5David Blaikie // This doesn't meet the iterator requirements, but it's convenient 1373581deb3da481053c4993c7600f97acf7768caac5David Blaikie value_type operator->() const { return **this; } 1374f8d49f64ef6ab7e632717a31631fc289aab69428Douglas Gregor 1375f8d49f64ef6ab7e632717a31631fc289aab69428Douglas Gregor specific_decl_iterator& operator++() { 1376f8d49f64ef6ab7e632717a31631fc289aab69428Douglas Gregor ++Current; 1377f8d49f64ef6ab7e632717a31631fc289aab69428Douglas Gregor SkipToNextDecl(); 1378f8d49f64ef6ab7e632717a31631fc289aab69428Douglas Gregor return *this; 1379f8d49f64ef6ab7e632717a31631fc289aab69428Douglas Gregor } 1380f8d49f64ef6ab7e632717a31631fc289aab69428Douglas Gregor 1381f8d49f64ef6ab7e632717a31631fc289aab69428Douglas Gregor specific_decl_iterator operator++(int) { 1382f8d49f64ef6ab7e632717a31631fc289aab69428Douglas Gregor specific_decl_iterator tmp(*this); 1383f8d49f64ef6ab7e632717a31631fc289aab69428Douglas Gregor ++(*this); 1384f8d49f64ef6ab7e632717a31631fc289aab69428Douglas Gregor return tmp; 1385f8d49f64ef6ab7e632717a31631fc289aab69428Douglas Gregor } 13861eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1387ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie friend bool operator==(const specific_decl_iterator& x, 1388ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie const specific_decl_iterator& y) { 1389f8d49f64ef6ab7e632717a31631fc289aab69428Douglas Gregor return x.Current == y.Current; 1390f8d49f64ef6ab7e632717a31631fc289aab69428Douglas Gregor } 13911eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1392ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie friend bool operator!=(const specific_decl_iterator& x, 1393ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie const specific_decl_iterator& y) { 1394f8d49f64ef6ab7e632717a31631fc289aab69428Douglas Gregor return x.Current != y.Current; 1395f8d49f64ef6ab7e632717a31631fc289aab69428Douglas Gregor } 1396f8d49f64ef6ab7e632717a31631fc289aab69428Douglas Gregor }; 1397f8d49f64ef6ab7e632717a31631fc289aab69428Douglas Gregor 1398669c9a28fa4be35e6b6322aa7f2f3b2968189b80Douglas Gregor /// \brief Iterates over a filtered subrange of declarations stored 1399669c9a28fa4be35e6b6322aa7f2f3b2968189b80Douglas Gregor /// in a DeclContext. 1400669c9a28fa4be35e6b6322aa7f2f3b2968189b80Douglas Gregor /// 1401669c9a28fa4be35e6b6322aa7f2f3b2968189b80Douglas Gregor /// This iterator visits only those declarations that are of type 1402669c9a28fa4be35e6b6322aa7f2f3b2968189b80Douglas Gregor /// SpecificDecl (or a class derived from it) and that meet some 1403669c9a28fa4be35e6b6322aa7f2f3b2968189b80Douglas Gregor /// additional run-time criteria. This iterator is used, for 1404669c9a28fa4be35e6b6322aa7f2f3b2968189b80Douglas Gregor /// example, to provide access to the instance methods within an 1405669c9a28fa4be35e6b6322aa7f2f3b2968189b80Douglas Gregor /// Objective-C interface (with SpecificDecl = ObjCMethodDecl and 1406669c9a28fa4be35e6b6322aa7f2f3b2968189b80Douglas Gregor /// Acceptable = ObjCMethodDecl::isInstanceMethod). 1407669c9a28fa4be35e6b6322aa7f2f3b2968189b80Douglas Gregor template<typename SpecificDecl, bool (SpecificDecl::*Acceptable)() const> 1408669c9a28fa4be35e6b6322aa7f2f3b2968189b80Douglas Gregor class filtered_decl_iterator { 1409669c9a28fa4be35e6b6322aa7f2f3b2968189b80Douglas Gregor /// Current - The current, underlying declaration iterator, which 1410669c9a28fa4be35e6b6322aa7f2f3b2968189b80Douglas Gregor /// will either be NULL or will point to a declaration of 1411669c9a28fa4be35e6b6322aa7f2f3b2968189b80Douglas Gregor /// type SpecificDecl. 1412669c9a28fa4be35e6b6322aa7f2f3b2968189b80Douglas Gregor DeclContext::decl_iterator Current; 14131eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1414669c9a28fa4be35e6b6322aa7f2f3b2968189b80Douglas Gregor /// SkipToNextDecl - Advances the current position up to the next 1415669c9a28fa4be35e6b6322aa7f2f3b2968189b80Douglas Gregor /// declaration of type SpecificDecl that also meets the criteria 1416669c9a28fa4be35e6b6322aa7f2f3b2968189b80Douglas Gregor /// required by Acceptable. 1417669c9a28fa4be35e6b6322aa7f2f3b2968189b80Douglas Gregor void SkipToNextDecl() { 1418669c9a28fa4be35e6b6322aa7f2f3b2968189b80Douglas Gregor while (*Current && 1419669c9a28fa4be35e6b6322aa7f2f3b2968189b80Douglas Gregor (!isa<SpecificDecl>(*Current) || 1420669c9a28fa4be35e6b6322aa7f2f3b2968189b80Douglas Gregor (Acceptable && !(cast<SpecificDecl>(*Current)->*Acceptable)()))) 1421669c9a28fa4be35e6b6322aa7f2f3b2968189b80Douglas Gregor ++Current; 1422669c9a28fa4be35e6b6322aa7f2f3b2968189b80Douglas Gregor } 1423669c9a28fa4be35e6b6322aa7f2f3b2968189b80Douglas Gregor 1424669c9a28fa4be35e6b6322aa7f2f3b2968189b80Douglas Gregor public: 1425581deb3da481053c4993c7600f97acf7768caac5David Blaikie typedef SpecificDecl *value_type; 1426581deb3da481053c4993c7600f97acf7768caac5David Blaikie // TODO: Add reference and pointer typedefs (with some appropriate proxy 1427581deb3da481053c4993c7600f97acf7768caac5David Blaikie // type) if we ever have a need for them. 1428581deb3da481053c4993c7600f97acf7768caac5David Blaikie typedef void reference; 1429581deb3da481053c4993c7600f97acf7768caac5David Blaikie typedef void pointer; 1430669c9a28fa4be35e6b6322aa7f2f3b2968189b80Douglas Gregor typedef std::iterator_traits<DeclContext::decl_iterator>::difference_type 1431669c9a28fa4be35e6b6322aa7f2f3b2968189b80Douglas Gregor difference_type; 1432669c9a28fa4be35e6b6322aa7f2f3b2968189b80Douglas Gregor typedef std::forward_iterator_tag iterator_category; 1433669c9a28fa4be35e6b6322aa7f2f3b2968189b80Douglas Gregor 1434669c9a28fa4be35e6b6322aa7f2f3b2968189b80Douglas Gregor filtered_decl_iterator() : Current() { } 1435669c9a28fa4be35e6b6322aa7f2f3b2968189b80Douglas Gregor 1436bd4fa45e7cf6a2f0adcb0ab66d5b3d338ec56c3cDavid Blaikie /// filtered_decl_iterator - Construct a new iterator over a 1437669c9a28fa4be35e6b6322aa7f2f3b2968189b80Douglas Gregor /// subset of the declarations the range [C, 1438669c9a28fa4be35e6b6322aa7f2f3b2968189b80Douglas Gregor /// end-of-declarations). If A is non-NULL, it is a pointer to a 1439669c9a28fa4be35e6b6322aa7f2f3b2968189b80Douglas Gregor /// member function of SpecificDecl that should return true for 1440669c9a28fa4be35e6b6322aa7f2f3b2968189b80Douglas Gregor /// all of the SpecificDecl instances that will be in the subset 1441669c9a28fa4be35e6b6322aa7f2f3b2968189b80Douglas Gregor /// of iterators. For example, if you want Objective-C instance 1442669c9a28fa4be35e6b6322aa7f2f3b2968189b80Douglas Gregor /// methods, SpecificDecl will be ObjCMethodDecl and A will be 1443669c9a28fa4be35e6b6322aa7f2f3b2968189b80Douglas Gregor /// &ObjCMethodDecl::isInstanceMethod. 1444669c9a28fa4be35e6b6322aa7f2f3b2968189b80Douglas Gregor explicit filtered_decl_iterator(DeclContext::decl_iterator C) : Current(C) { 1445669c9a28fa4be35e6b6322aa7f2f3b2968189b80Douglas Gregor SkipToNextDecl(); 1446669c9a28fa4be35e6b6322aa7f2f3b2968189b80Douglas Gregor } 1447669c9a28fa4be35e6b6322aa7f2f3b2968189b80Douglas Gregor 1448581deb3da481053c4993c7600f97acf7768caac5David Blaikie value_type operator*() const { return cast<SpecificDecl>(*Current); } 1449581deb3da481053c4993c7600f97acf7768caac5David Blaikie value_type operator->() const { return cast<SpecificDecl>(*Current); } 1450669c9a28fa4be35e6b6322aa7f2f3b2968189b80Douglas Gregor 1451669c9a28fa4be35e6b6322aa7f2f3b2968189b80Douglas Gregor filtered_decl_iterator& operator++() { 1452669c9a28fa4be35e6b6322aa7f2f3b2968189b80Douglas Gregor ++Current; 1453669c9a28fa4be35e6b6322aa7f2f3b2968189b80Douglas Gregor SkipToNextDecl(); 1454669c9a28fa4be35e6b6322aa7f2f3b2968189b80Douglas Gregor return *this; 1455669c9a28fa4be35e6b6322aa7f2f3b2968189b80Douglas Gregor } 1456669c9a28fa4be35e6b6322aa7f2f3b2968189b80Douglas Gregor 1457669c9a28fa4be35e6b6322aa7f2f3b2968189b80Douglas Gregor filtered_decl_iterator operator++(int) { 1458669c9a28fa4be35e6b6322aa7f2f3b2968189b80Douglas Gregor filtered_decl_iterator tmp(*this); 1459669c9a28fa4be35e6b6322aa7f2f3b2968189b80Douglas Gregor ++(*this); 1460669c9a28fa4be35e6b6322aa7f2f3b2968189b80Douglas Gregor return tmp; 1461669c9a28fa4be35e6b6322aa7f2f3b2968189b80Douglas Gregor } 14621eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1463ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie friend bool operator==(const filtered_decl_iterator& x, 1464ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie const filtered_decl_iterator& y) { 1465669c9a28fa4be35e6b6322aa7f2f3b2968189b80Douglas Gregor return x.Current == y.Current; 1466669c9a28fa4be35e6b6322aa7f2f3b2968189b80Douglas Gregor } 14671eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump 1468ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie friend bool operator!=(const filtered_decl_iterator& x, 1469ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie const filtered_decl_iterator& y) { 1470669c9a28fa4be35e6b6322aa7f2f3b2968189b80Douglas Gregor return x.Current != y.Current; 1471669c9a28fa4be35e6b6322aa7f2f3b2968189b80Douglas Gregor } 1472669c9a28fa4be35e6b6322aa7f2f3b2968189b80Douglas Gregor }; 1473669c9a28fa4be35e6b6322aa7f2f3b2968189b80Douglas Gregor 147440f4e69002af9623a1f959bd57b99afda186a6a7Douglas Gregor /// @brief Add the declaration D into this context. 147540f4e69002af9623a1f959bd57b99afda186a6a7Douglas Gregor /// 147640f4e69002af9623a1f959bd57b99afda186a6a7Douglas Gregor /// This routine should be invoked when the declaration D has first 147740f4e69002af9623a1f959bd57b99afda186a6a7Douglas Gregor /// been declared, to place D into the context where it was 147840f4e69002af9623a1f959bd57b99afda186a6a7Douglas Gregor /// (lexically) defined. Every declaration must be added to one 147940f4e69002af9623a1f959bd57b99afda186a6a7Douglas Gregor /// (and only one!) context, where it can be visited via 148040f4e69002af9623a1f959bd57b99afda186a6a7Douglas Gregor /// [decls_begin(), decls_end()). Once a declaration has been added 148140f4e69002af9623a1f959bd57b99afda186a6a7Douglas Gregor /// to its lexical context, the corresponding DeclContext owns the 148240f4e69002af9623a1f959bd57b99afda186a6a7Douglas Gregor /// declaration. 148340f4e69002af9623a1f959bd57b99afda186a6a7Douglas Gregor /// 148440f4e69002af9623a1f959bd57b99afda186a6a7Douglas Gregor /// If D is also a NamedDecl, it will be made visible within its 148540f4e69002af9623a1f959bd57b99afda186a6a7Douglas Gregor /// semantic context via makeDeclVisibleInContext. 148617945a0f64fe03ff6ec0c2146005a87636e3ac12Argyrios Kyrtzidis void addDecl(Decl *D); 1487381509ea9965ab6bde9b36b4131ad08bf851d9b4Sean Callanan 1488381509ea9965ab6bde9b36b4131ad08bf851d9b4Sean Callanan /// @brief Add the declaration D into this context, but suppress 1489381509ea9965ab6bde9b36b4131ad08bf851d9b4Sean Callanan /// searches for external declarations with the same name. 1490381509ea9965ab6bde9b36b4131ad08bf851d9b4Sean Callanan /// 1491381509ea9965ab6bde9b36b4131ad08bf851d9b4Sean Callanan /// Although analogous in function to addDecl, this removes an 1492381509ea9965ab6bde9b36b4131ad08bf851d9b4Sean Callanan /// important check. This is only useful if the Decl is being 1493381509ea9965ab6bde9b36b4131ad08bf851d9b4Sean Callanan /// added in response to an external search; in all other cases, 1494381509ea9965ab6bde9b36b4131ad08bf851d9b4Sean Callanan /// addDecl() is the right function to use. 1495381509ea9965ab6bde9b36b4131ad08bf851d9b4Sean Callanan /// See the ASTImporter for use cases. 14969faf810f08132aabb34a478297dfeea89c3bbe17Sean Callanan void addDeclInternal(Decl *D); 149744b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor 14983f9a8a60614b763785d54ad08821745d03a4af70John McCall /// @brief Add the declaration D to this context without modifying 14993f9a8a60614b763785d54ad08821745d03a4af70John McCall /// any lookup tables. 15003f9a8a60614b763785d54ad08821745d03a4af70John McCall /// 15013f9a8a60614b763785d54ad08821745d03a4af70John McCall /// This is useful for some operations in dependent contexts where 15023f9a8a60614b763785d54ad08821745d03a4af70John McCall /// the semantic context might not be dependent; this basically 15033f9a8a60614b763785d54ad08821745d03a4af70John McCall /// only happens with friends. 15043f9a8a60614b763785d54ad08821745d03a4af70John McCall void addHiddenDecl(Decl *D); 15053f9a8a60614b763785d54ad08821745d03a4af70John McCall 15069f54ad4381370c6b771424b53d219e661d6d6706John McCall /// @brief Removes a declaration from this context. 15079f54ad4381370c6b771424b53d219e661d6d6706John McCall void removeDecl(Decl *D); 1508cd904e8864637e427f5ea3bf35a26e79b3dbbadfSean Callanan 1509cd904e8864637e427f5ea3bf35a26e79b3dbbadfSean Callanan /// @brief Checks whether a declaration is in this context. 1510cd904e8864637e427f5ea3bf35a26e79b3dbbadfSean Callanan bool containsDecl(Decl *D) const; 15119f54ad4381370c6b771424b53d219e661d6d6706John McCall 151244b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor /// lookup_iterator - An iterator that provides access to the results 151344b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor /// of looking up a name within this context. 15144afa39deaa245592977136d367251ee2c173dd8dDouglas Gregor typedef NamedDecl **lookup_iterator; 151544b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor 151644b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor /// lookup_const_iterator - An iterator that provides non-mutable 151744b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor /// access to the results of lookup up a name within this context. 15184afa39deaa245592977136d367251ee2c173dd8dDouglas Gregor typedef NamedDecl * const * lookup_const_iterator; 151944b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor 1520ea318642072d3d94b5c3cff0fa6f4b33d2db0768John McCall typedef DeclContextLookupResult lookup_result; 1521ea318642072d3d94b5c3cff0fa6f4b33d2db0768John McCall typedef DeclContextLookupConstResult lookup_const_result; 152244b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor 152344b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor /// lookup - Find the declarations (if any) with the given Name in 152444b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor /// this context. Returns a range of iterators that contains all of 152540f4e69002af9623a1f959bd57b99afda186a6a7Douglas Gregor /// the declarations with this name, with object, function, member, 152640f4e69002af9623a1f959bd57b99afda186a6a7Douglas Gregor /// and enumerator names preceding any tag name. Note that this 152740f4e69002af9623a1f959bd57b99afda186a6a7Douglas Gregor /// routine will not look into parent contexts. 152817945a0f64fe03ff6ec0c2146005a87636e3ac12Argyrios Kyrtzidis lookup_result lookup(DeclarationName Name); 1529514d3b6b93c83c0841d2f9dd7af8ecc2877fe921Douglas Gregor lookup_const_result lookup(DeclarationName Name) const { 1530514d3b6b93c83c0841d2f9dd7af8ecc2877fe921Douglas Gregor return const_cast<DeclContext*>(this)->lookup(Name); 1531514d3b6b93c83c0841d2f9dd7af8ecc2877fe921Douglas Gregor } 153244b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor 1533e7bae1597f4a7088f5048695c14a8f1013a86108Richard Smith /// \brief Find the declarations with the given name that are visible 1534e7bae1597f4a7088f5048695c14a8f1013a86108Richard Smith /// within this context; don't attempt to retrieve anything from an 1535e7bae1597f4a7088f5048695c14a8f1013a86108Richard Smith /// external source. 1536e7bae1597f4a7088f5048695c14a8f1013a86108Richard Smith lookup_result noload_lookup(DeclarationName Name); 1537e7bae1597f4a7088f5048695c14a8f1013a86108Richard Smith 1538b75a3451bcae1301875282e73a13934c90b6574cDouglas Gregor /// \brief A simplistic name lookup mechanism that performs name lookup 1539b75a3451bcae1301875282e73a13934c90b6574cDouglas Gregor /// into this declaration context without consulting the external source. 1540b75a3451bcae1301875282e73a13934c90b6574cDouglas Gregor /// 1541ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie /// This function should almost never be used, because it subverts the 1542b75a3451bcae1301875282e73a13934c90b6574cDouglas Gregor /// usual relationship between a DeclContext and the external source. 1543b75a3451bcae1301875282e73a13934c90b6574cDouglas Gregor /// See the ASTImporter for the (few, but important) use cases. 1544e7bae1597f4a7088f5048695c14a8f1013a86108Richard Smith /// 1545e7bae1597f4a7088f5048695c14a8f1013a86108Richard Smith /// FIXME: This is very inefficient; replace uses of it with uses of 1546e7bae1597f4a7088f5048695c14a8f1013a86108Richard Smith /// noload_lookup. 1547ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie void localUncachedLookup(DeclarationName Name, 1548cfa88f893915ceb8ae4ce2f17c46c24a4d67502fDmitri Gribenko SmallVectorImpl<NamedDecl *> &Results); 1549ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie 155040f4e69002af9623a1f959bd57b99afda186a6a7Douglas Gregor /// @brief Makes a declaration visible within this context. 155140f4e69002af9623a1f959bd57b99afda186a6a7Douglas Gregor /// 155240f4e69002af9623a1f959bd57b99afda186a6a7Douglas Gregor /// This routine makes the declaration D visible to name lookup 155340f4e69002af9623a1f959bd57b99afda186a6a7Douglas Gregor /// within this context and, if this is a transparent context, 155440f4e69002af9623a1f959bd57b99afda186a6a7Douglas Gregor /// within its parent contexts up to the first enclosing 155540f4e69002af9623a1f959bd57b99afda186a6a7Douglas Gregor /// non-transparent context. Making a declaration visible within a 155640f4e69002af9623a1f959bd57b99afda186a6a7Douglas Gregor /// context does not transfer ownership of a declaration, and a 155740f4e69002af9623a1f959bd57b99afda186a6a7Douglas Gregor /// declaration can be visible in many contexts that aren't its 155840f4e69002af9623a1f959bd57b99afda186a6a7Douglas Gregor /// lexical context. 155940f4e69002af9623a1f959bd57b99afda186a6a7Douglas Gregor /// 156040f4e69002af9623a1f959bd57b99afda186a6a7Douglas Gregor /// If D is a redeclaration of an existing declaration that is 156140f4e69002af9623a1f959bd57b99afda186a6a7Douglas Gregor /// visible from this context, as determined by 156240f4e69002af9623a1f959bd57b99afda186a6a7Douglas Gregor /// NamedDecl::declarationReplaces, the previous declaration will be 156340f4e69002af9623a1f959bd57b99afda186a6a7Douglas Gregor /// replaced with D. 15641b7f9cbed1b96b58a6e5f7808ebc9345a76a0936Richard Smith void makeDeclVisibleInContext(NamedDecl *D); 15657643536c36b0449256d5ee2efc03a7e4a784a0b3Argyrios Kyrtzidis 1566173a37a57b79bd8f94b85c2273039e760b159922Nick Lewycky /// all_lookups_iterator - An iterator that provides a view over the results 1567173a37a57b79bd8f94b85c2273039e760b159922Nick Lewycky /// of looking up every possible name. 1568173a37a57b79bd8f94b85c2273039e760b159922Nick Lewycky class all_lookups_iterator; 1569173a37a57b79bd8f94b85c2273039e760b159922Nick Lewycky 1570651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines typedef llvm::iterator_range<all_lookups_iterator> lookups_range; 1571651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines 1572651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines lookups_range lookups() const; 1573651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines lookups_range noload_lookups() const; 1574651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines 15756e322c08b187ba93019732d2295c84c339813e0dRichard Smith /// \brief Iterators over all possible lookups within this context. 1576173a37a57b79bd8f94b85c2273039e760b159922Nick Lewycky all_lookups_iterator lookups_begin() const; 1577173a37a57b79bd8f94b85c2273039e760b159922Nick Lewycky all_lookups_iterator lookups_end() const; 1578173a37a57b79bd8f94b85c2273039e760b159922Nick Lewycky 15796e322c08b187ba93019732d2295c84c339813e0dRichard Smith /// \brief Iterators over all possible lookups within this context that are 15806e322c08b187ba93019732d2295c84c339813e0dRichard Smith /// currently loaded; don't attempt to retrieve anything from an external 15816e322c08b187ba93019732d2295c84c339813e0dRichard Smith /// source. 15826e322c08b187ba93019732d2295c84c339813e0dRichard Smith all_lookups_iterator noload_lookups_begin() const; 15836e322c08b187ba93019732d2295c84c339813e0dRichard Smith all_lookups_iterator noload_lookups_end() const; 15846e322c08b187ba93019732d2295c84c339813e0dRichard Smith 1585651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines typedef llvm::iterator_range<UsingDirectiveDecl * const *> udir_range; 15862a3009a432bdcec59e6383d7b2b17494d6f91649Douglas Gregor 1587651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines udir_range using_directives() const; 15882a3009a432bdcec59e6383d7b2b17494d6f91649Douglas Gregor 15890c01d18094100db92d38daa923c95661512db203John McCall // These are all defined in DependentDiagnostic.h. 15900c01d18094100db92d38daa923c95661512db203John McCall class ddiag_iterator; 1591651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines typedef llvm::iterator_range<DeclContext::ddiag_iterator> ddiag_range; 1592651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines 1593651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines inline ddiag_range ddiags() const; 15940c01d18094100db92d38daa923c95661512db203John McCall 1595c2ee10d79f70036af652a395ac1f8273f3d04e12Douglas Gregor // Low-level accessors 15965b8d0af4234252b38229a5bae1d615ac9769f73fRichard Smith 1597d5a20c19416d7143771b4d503fa808ae01c4e7adSean Callanan /// \brief Mark the lookup table as needing to be built. This should be 159863a9514a2330b144575a136e38875193760126f7Richard Smith /// used only if setHasExternalLexicalStorage() has been called on any 159963a9514a2330b144575a136e38875193760126f7Richard Smith /// decl context for which this is the primary context. 1600d5a20c19416d7143771b4d503fa808ae01c4e7adSean Callanan void setMustBuildLookupTable() { 1601d5a20c19416d7143771b4d503fa808ae01c4e7adSean Callanan LookupPtr.setInt(true); 1602d5a20c19416d7143771b4d503fa808ae01c4e7adSean Callanan } 1603c2ee10d79f70036af652a395ac1f8273f3d04e12Douglas Gregor 1604c2ee10d79f70036af652a395ac1f8273f3d04e12Douglas Gregor /// \brief Retrieve the internal representation of the lookup structure. 1605c5d3e80c64af9604ad798282cc6861f9cd2afc52Richard Smith /// This may omit some names if we are lazily building the structure. 1606c5d3e80c64af9604ad798282cc6861f9cd2afc52Richard Smith StoredDeclsMap *getLookupPtr() const { return LookupPtr.getPointer(); } 1607c5d3e80c64af9604ad798282cc6861f9cd2afc52Richard Smith 1608c5d3e80c64af9604ad798282cc6861f9cd2afc52Richard Smith /// \brief Ensure the lookup structure is fully-built and return it. 1609c5d3e80c64af9604ad798282cc6861f9cd2afc52Richard Smith StoredDeclsMap *buildLookup(); 1610c2ee10d79f70036af652a395ac1f8273f3d04e12Douglas Gregor 16112cf2634ffdb4f7c8d46cef3f8e60a55993f1c57aDouglas Gregor /// \brief Whether this DeclContext has external storage containing 16122cf2634ffdb4f7c8d46cef3f8e60a55993f1c57aDouglas Gregor /// additional declarations that are lexically in this context. 16132cf2634ffdb4f7c8d46cef3f8e60a55993f1c57aDouglas Gregor bool hasExternalLexicalStorage() const { return ExternalLexicalStorage; } 16142cf2634ffdb4f7c8d46cef3f8e60a55993f1c57aDouglas Gregor 16152cf2634ffdb4f7c8d46cef3f8e60a55993f1c57aDouglas Gregor /// \brief State whether this DeclContext has external storage for 16162cf2634ffdb4f7c8d46cef3f8e60a55993f1c57aDouglas Gregor /// declarations lexically in this context. 16171eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump void setHasExternalLexicalStorage(bool ES = true) { 16181eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump ExternalLexicalStorage = ES; 16192cf2634ffdb4f7c8d46cef3f8e60a55993f1c57aDouglas Gregor } 16202cf2634ffdb4f7c8d46cef3f8e60a55993f1c57aDouglas Gregor 16212cf2634ffdb4f7c8d46cef3f8e60a55993f1c57aDouglas Gregor /// \brief Whether this DeclContext has external storage containing 16222cf2634ffdb4f7c8d46cef3f8e60a55993f1c57aDouglas Gregor /// additional declarations that are visible in this context. 16232cf2634ffdb4f7c8d46cef3f8e60a55993f1c57aDouglas Gregor bool hasExternalVisibleStorage() const { return ExternalVisibleStorage; } 16242cf2634ffdb4f7c8d46cef3f8e60a55993f1c57aDouglas Gregor 16252cf2634ffdb4f7c8d46cef3f8e60a55993f1c57aDouglas Gregor /// \brief State whether this DeclContext has external storage for 16262cf2634ffdb4f7c8d46cef3f8e60a55993f1c57aDouglas Gregor /// declarations visible in this context. 16271eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump void setHasExternalVisibleStorage(bool ES = true) { 16281eb4433ac451dc16f4133a88af2d002ac26c58efMike Stump ExternalVisibleStorage = ES; 16298896339a3c654dc44877d52a926eb89ab3ef30b5Richard Smith if (ES && LookupPtr.getPointer()) 1630bbcd0f3ba215d5a8857b224e32b0330586a00dc6Richard Smith NeedToReconcileExternalVisibleStorage = true; 16312cf2634ffdb4f7c8d46cef3f8e60a55993f1c57aDouglas Gregor } 16322cf2634ffdb4f7c8d46cef3f8e60a55993f1c57aDouglas Gregor 16332ea054fbc59ed19b8e3304e7e7cbdd56a5a5120fDouglas Gregor /// \brief Determine whether the given declaration is stored in the list of 16342ea054fbc59ed19b8e3304e7e7cbdd56a5a5120fDouglas Gregor /// declarations lexically within this context. 16352ea054fbc59ed19b8e3304e7e7cbdd56a5a5120fDouglas Gregor bool isDeclInLexicalTraversal(const Decl *D) const { 163646cd2186bddc3e046140cb2d56932ee7faf7e3aeDouglas Gregor return D && (D->NextInContextAndBits.getPointer() || D == FirstDecl || 163746cd2186bddc3e046140cb2d56932ee7faf7e3aeDouglas Gregor D == LastDecl); 16382ea054fbc59ed19b8e3304e7e7cbdd56a5a5120fDouglas Gregor } 1639ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie 16403d7641e090cf113dec64306a1597d3e4523e2a55Argyrios Kyrtzidis static bool classof(const Decl *D); 1641b048c9835969c4f7fe06264748be18ed4b442116Chris Lattner static bool classof(const DeclContext *D) { return true; } 16427643536c36b0449256d5ee2efc03a7e4a784a0b3Argyrios Kyrtzidis 1643651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines void dumpDeclContext() const; 1644651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines void dumpLookups() const; 1645651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines void dumpLookups(llvm::raw_ostream &OS) const; 16462b7d8ddc746a9096f8af4bd0d8b07eae523864b5Anders Carlsson 16477643536c36b0449256d5ee2efc03a7e4a784a0b3Argyrios Kyrtzidisprivate: 1648651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines void reconcileExternalVisibleStorage() const; 164917945a0f64fe03ff6ec0c2146005a87636e3ac12Argyrios Kyrtzidis void LoadLexicalDeclsFromExternalStorage() const; 1650ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie 1651ba243b59a1074e0962f6abfa3bb9aa984eac1245David Blaikie /// @brief Makes a declaration visible within this context, but 1652381509ea9965ab6bde9b36b4131ad08bf851d9b4Sean Callanan /// suppresses searches for external declarations with the same 1653381509ea9965ab6bde9b36b4131ad08bf851d9b4Sean Callanan /// name. 1654381509ea9965ab6bde9b36b4131ad08bf851d9b4Sean Callanan /// 1655381509ea9965ab6bde9b36b4131ad08bf851d9b4Sean Callanan /// Analogous to makeDeclVisibleInContext, but for the exclusive 1656381509ea9965ab6bde9b36b4131ad08bf851d9b4Sean Callanan /// use of addDeclInternal(). 16571b7f9cbed1b96b58a6e5f7808ebc9345a76a0936Richard Smith void makeDeclVisibleInContextInternal(NamedDecl *D); 16582cf2634ffdb4f7c8d46cef3f8e60a55993f1c57aDouglas Gregor 16590c01d18094100db92d38daa923c95661512db203John McCall friend class DependentDiagnostic; 16600c01d18094100db92d38daa923c95661512db203John McCall StoredDeclsMap *CreateStoredDeclsMap(ASTContext &C) const; 16610c01d18094100db92d38daa923c95661512db203John McCall 1662e7bae1597f4a7088f5048695c14a8f1013a86108Richard Smith template<decl_iterator (DeclContext::*Begin)() const, 1663e7bae1597f4a7088f5048695c14a8f1013a86108Richard Smith decl_iterator (DeclContext::*End)() const> 1664c5d3e80c64af9604ad798282cc6861f9cd2afc52Richard Smith void buildLookupImpl(DeclContext *DCtx); 1665c5d3e80c64af9604ad798282cc6861f9cd2afc52Richard Smith void makeDeclVisibleInContextWithFlags(NamedDecl *D, bool Internal, 1666c5d3e80c64af9604ad798282cc6861f9cd2afc52Richard Smith bool Rediscoverable); 16679faf810f08132aabb34a478297dfeea89c3bbe17Sean Callanan void makeDeclVisibleInContextImpl(NamedDecl *D, bool Internal); 16680ed844b04ea4387caa4e1cf3dc375d269657536bChris Lattner}; 16690ed844b04ea4387caa4e1cf3dc375d269657536bChris Lattner 1670f57172b24f08a68d179675989813d5479dc87829Douglas Gregorinline bool Decl::isTemplateParameter() const { 167179c2278a66d8fc0943774d1b7c71a32f7764e1e2Douglas Gregor return getKind() == TemplateTypeParm || getKind() == NonTypeTemplateParm || 167279c2278a66d8fc0943774d1b7c71a32f7764e1e2Douglas Gregor getKind() == TemplateTemplateParm; 16734afa39deaa245592977136d367251ee2c173dd8dDouglas Gregor} 16744afa39deaa245592977136d367251ee2c173dd8dDouglas Gregor 167580cd64a8450d8e2c079dc134d9711cd45ba89d63John McCall// Specialization selected when ToTy is not a known subclass of DeclContext. 167680cd64a8450d8e2c079dc134d9711cd45ba89d63John McCalltemplate <class ToTy, 1677651f13cea278ec967336033dd032faef0e9fc2ecStephen Hines bool IsKnownSubtype = ::std::is_base_of<DeclContext, ToTy>::value> 167880cd64a8450d8e2c079dc134d9711cd45ba89d63John McCallstruct cast_convert_decl_context { 167980cd64a8450d8e2c079dc134d9711cd45ba89d63John McCall static const ToTy *doit(const DeclContext *Val) { 168080cd64a8450d8e2c079dc134d9711cd45ba89d63John McCall return static_cast<const ToTy*>(Decl::castFromDeclContext(Val)); 168180cd64a8450d8e2c079dc134d9711cd45ba89d63John McCall } 168280cd64a8450d8e2c079dc134d9711cd45ba89d63John McCall 168380cd64a8450d8e2c079dc134d9711cd45ba89d63John McCall static ToTy *doit(DeclContext *Val) { 168480cd64a8450d8e2c079dc134d9711cd45ba89d63John McCall return static_cast<ToTy*>(Decl::castFromDeclContext(Val)); 168580cd64a8450d8e2c079dc134d9711cd45ba89d63John McCall } 168680cd64a8450d8e2c079dc134d9711cd45ba89d63John McCall}; 168780cd64a8450d8e2c079dc134d9711cd45ba89d63John McCall 168880cd64a8450d8e2c079dc134d9711cd45ba89d63John McCall// Specialization selected when ToTy is a known subclass of DeclContext. 168980cd64a8450d8e2c079dc134d9711cd45ba89d63John McCalltemplate <class ToTy> 169080cd64a8450d8e2c079dc134d9711cd45ba89d63John McCallstruct cast_convert_decl_context<ToTy, true> { 169180cd64a8450d8e2c079dc134d9711cd45ba89d63John McCall static const ToTy *doit(const DeclContext *Val) { 169280cd64a8450d8e2c079dc134d9711cd45ba89d63John McCall return static_cast<const ToTy*>(Val); 169380cd64a8450d8e2c079dc134d9711cd45ba89d63John McCall } 169480cd64a8450d8e2c079dc134d9711cd45ba89d63John McCall 169580cd64a8450d8e2c079dc134d9711cd45ba89d63John McCall static ToTy *doit(DeclContext *Val) { 169680cd64a8450d8e2c079dc134d9711cd45ba89d63John McCall return static_cast<ToTy*>(Val); 169780cd64a8450d8e2c079dc134d9711cd45ba89d63John McCall } 169880cd64a8450d8e2c079dc134d9711cd45ba89d63John McCall}; 169980cd64a8450d8e2c079dc134d9711cd45ba89d63John McCall 170080cd64a8450d8e2c079dc134d9711cd45ba89d63John McCall 17010ed844b04ea4387caa4e1cf3dc375d269657536bChris Lattner} // end clang. 17020ed844b04ea4387caa4e1cf3dc375d269657536bChris Lattner 17030ed844b04ea4387caa4e1cf3dc375d269657536bChris Lattnernamespace llvm { 17040ed844b04ea4387caa4e1cf3dc375d269657536bChris Lattner 170580cd64a8450d8e2c079dc134d9711cd45ba89d63John McCall/// isa<T>(DeclContext*) 17064d509341bd5db06a517daa311379f52bb540bc34Eli Friedmantemplate <typename To> 17074d509341bd5db06a517daa311379f52bb540bc34Eli Friedmanstruct isa_impl<To, ::clang::DeclContext> { 170842220c5432c141d47cc8ce786e472b49dc907378Argyrios Kyrtzidis static bool doit(const ::clang::DeclContext &Val) { 17094d509341bd5db06a517daa311379f52bb540bc34Eli Friedman return To::classofKind(Val.getDeclKind()); 17100ed844b04ea4387caa4e1cf3dc375d269657536bChris Lattner } 17110ed844b04ea4387caa4e1cf3dc375d269657536bChris Lattner}; 17120ed844b04ea4387caa4e1cf3dc375d269657536bChris Lattner 171380cd64a8450d8e2c079dc134d9711cd45ba89d63John McCall/// cast<T>(DeclContext*) 171480cd64a8450d8e2c079dc134d9711cd45ba89d63John McCalltemplate<class ToTy> 171580cd64a8450d8e2c079dc134d9711cd45ba89d63John McCallstruct cast_convert_val<ToTy, 171680cd64a8450d8e2c079dc134d9711cd45ba89d63John McCall const ::clang::DeclContext,const ::clang::DeclContext> { 171780cd64a8450d8e2c079dc134d9711cd45ba89d63John McCall static const ToTy &doit(const ::clang::DeclContext &Val) { 171880cd64a8450d8e2c079dc134d9711cd45ba89d63John McCall return *::clang::cast_convert_decl_context<ToTy>::doit(&Val); 171980cd64a8450d8e2c079dc134d9711cd45ba89d63John McCall } 172080cd64a8450d8e2c079dc134d9711cd45ba89d63John McCall}; 172180cd64a8450d8e2c079dc134d9711cd45ba89d63John McCalltemplate<class ToTy> 172280cd64a8450d8e2c079dc134d9711cd45ba89d63John McCallstruct cast_convert_val<ToTy, ::clang::DeclContext, ::clang::DeclContext> { 172380cd64a8450d8e2c079dc134d9711cd45ba89d63John McCall static ToTy &doit(::clang::DeclContext &Val) { 172480cd64a8450d8e2c079dc134d9711cd45ba89d63John McCall return *::clang::cast_convert_decl_context<ToTy>::doit(&Val); 172580cd64a8450d8e2c079dc134d9711cd45ba89d63John McCall } 172680cd64a8450d8e2c079dc134d9711cd45ba89d63John McCall}; 172780cd64a8450d8e2c079dc134d9711cd45ba89d63John McCalltemplate<class ToTy> 172880cd64a8450d8e2c079dc134d9711cd45ba89d63John McCallstruct cast_convert_val<ToTy, 172980cd64a8450d8e2c079dc134d9711cd45ba89d63John McCall const ::clang::DeclContext*, const ::clang::DeclContext*> { 173080cd64a8450d8e2c079dc134d9711cd45ba89d63John McCall static const ToTy *doit(const ::clang::DeclContext *Val) { 173180cd64a8450d8e2c079dc134d9711cd45ba89d63John McCall return ::clang::cast_convert_decl_context<ToTy>::doit(Val); 173280cd64a8450d8e2c079dc134d9711cd45ba89d63John McCall } 173380cd64a8450d8e2c079dc134d9711cd45ba89d63John McCall}; 173480cd64a8450d8e2c079dc134d9711cd45ba89d63John McCalltemplate<class ToTy> 173580cd64a8450d8e2c079dc134d9711cd45ba89d63John McCallstruct cast_convert_val<ToTy, ::clang::DeclContext*, ::clang::DeclContext*> { 173680cd64a8450d8e2c079dc134d9711cd45ba89d63John McCall static ToTy *doit(::clang::DeclContext *Val) { 173780cd64a8450d8e2c079dc134d9711cd45ba89d63John McCall return ::clang::cast_convert_decl_context<ToTy>::doit(Val); 173880cd64a8450d8e2c079dc134d9711cd45ba89d63John McCall } 173980cd64a8450d8e2c079dc134d9711cd45ba89d63John McCall}; 174080cd64a8450d8e2c079dc134d9711cd45ba89d63John McCall 174142220c5432c141d47cc8ce786e472b49dc907378Argyrios Kyrtzidis/// Implement cast_convert_val for Decl -> DeclContext conversions. 17420ed844b04ea4387caa4e1cf3dc375d269657536bChris Lattnertemplate<class FromTy> 174342220c5432c141d47cc8ce786e472b49dc907378Argyrios Kyrtzidisstruct cast_convert_val< ::clang::DeclContext, FromTy, FromTy> { 1744b048c9835969c4f7fe06264748be18ed4b442116Chris Lattner static ::clang::DeclContext &doit(const FromTy &Val) { 174542220c5432c141d47cc8ce786e472b49dc907378Argyrios Kyrtzidis return *FromTy::castToDeclContext(&Val); 17460ed844b04ea4387caa4e1cf3dc375d269657536bChris Lattner } 17470ed844b04ea4387caa4e1cf3dc375d269657536bChris Lattner}; 17480ed844b04ea4387caa4e1cf3dc375d269657536bChris Lattner 17490ed844b04ea4387caa4e1cf3dc375d269657536bChris Lattnertemplate<class FromTy> 175042220c5432c141d47cc8ce786e472b49dc907378Argyrios Kyrtzidisstruct cast_convert_val< ::clang::DeclContext, FromTy*, FromTy*> { 1751b048c9835969c4f7fe06264748be18ed4b442116Chris Lattner static ::clang::DeclContext *doit(const FromTy *Val) { 175242220c5432c141d47cc8ce786e472b49dc907378Argyrios Kyrtzidis return FromTy::castToDeclContext(Val); 17530ed844b04ea4387caa4e1cf3dc375d269657536bChris Lattner } 17540ed844b04ea4387caa4e1cf3dc375d269657536bChris Lattner}; 175542220c5432c141d47cc8ce786e472b49dc907378Argyrios Kyrtzidis 175644b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregortemplate<class FromTy> 175744b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregorstruct cast_convert_val< const ::clang::DeclContext, FromTy, FromTy> { 175844b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor static const ::clang::DeclContext &doit(const FromTy &Val) { 175944b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor return *FromTy::castToDeclContext(&Val); 176044b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor } 176144b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor}; 176244b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor 176344b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregortemplate<class FromTy> 176444b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregorstruct cast_convert_val< const ::clang::DeclContext, FromTy*, FromTy*> { 176544b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor static const ::clang::DeclContext *doit(const FromTy *Val) { 176644b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor return FromTy::castToDeclContext(Val); 176744b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor } 176844b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor}; 176944b4321feab46299d3f5cfd404680884752a0fcfDouglas Gregor 17700ed844b04ea4387caa4e1cf3dc375d269657536bChris Lattner} // end namespace llvm 17710ed844b04ea4387caa4e1cf3dc375d269657536bChris Lattner 17720ed844b04ea4387caa4e1cf3dc375d269657536bChris Lattner#endif 1773