forked from OSchip/llvm-project
4257 lines
159 KiB
C++
4257 lines
159 KiB
C++
//===--- ASTReaderDecl.cpp - Decl Deserialization ---------------*- C++ -*-===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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//
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// This file implements the ASTReader::ReadDeclRecord method, which is the
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// entrypoint for loading a decl.
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//
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//===----------------------------------------------------------------------===//
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#include "ASTCommon.h"
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#include "ASTReaderInternals.h"
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#include "clang/AST/ASTContext.h"
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#include "clang/AST/DeclCXX.h"
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#include "clang/AST/DeclGroup.h"
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#include "clang/AST/DeclTemplate.h"
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#include "clang/AST/DeclVisitor.h"
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#include "clang/AST/Expr.h"
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#include "clang/Sema/IdentifierResolver.h"
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#include "clang/Sema/SemaDiagnostic.h"
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#include "clang/Serialization/ASTReader.h"
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#include "llvm/Support/SaveAndRestore.h"
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using namespace clang;
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using namespace clang::serialization;
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//===----------------------------------------------------------------------===//
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// Declaration deserialization
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//===----------------------------------------------------------------------===//
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namespace clang {
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class ASTDeclReader : public DeclVisitor<ASTDeclReader, void> {
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ASTReader &Reader;
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ASTRecordReader &Record;
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ASTReader::RecordLocation Loc;
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const DeclID ThisDeclID;
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const SourceLocation ThisDeclLoc;
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typedef ASTReader::RecordData RecordData;
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TypeID TypeIDForTypeDecl;
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unsigned AnonymousDeclNumber;
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GlobalDeclID NamedDeclForTagDecl;
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IdentifierInfo *TypedefNameForLinkage;
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bool HasPendingBody;
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///\brief A flag to carry the information for a decl from the entity is
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/// used. We use it to delay the marking of the canonical decl as used until
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/// the entire declaration is deserialized and merged.
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bool IsDeclMarkedUsed;
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uint64_t GetCurrentCursorOffset();
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uint64_t ReadLocalOffset() {
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uint64_t LocalOffset = Record.readInt();
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assert(LocalOffset < Loc.Offset && "offset point after current record");
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return LocalOffset ? Loc.Offset - LocalOffset : 0;
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}
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uint64_t ReadGlobalOffset() {
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uint64_t Local = ReadLocalOffset();
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return Local ? Record.getGlobalBitOffset(Local) : 0;
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}
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SourceLocation ReadSourceLocation() {
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return Record.readSourceLocation();
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}
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SourceRange ReadSourceRange() {
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return Record.readSourceRange();
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}
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TypeSourceInfo *GetTypeSourceInfo() {
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return Record.getTypeSourceInfo();
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}
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serialization::DeclID ReadDeclID() {
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return Record.readDeclID();
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}
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std::string ReadString() {
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return Record.readString();
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}
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void ReadDeclIDList(SmallVectorImpl<DeclID> &IDs) {
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for (unsigned I = 0, Size = Record.readInt(); I != Size; ++I)
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IDs.push_back(ReadDeclID());
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}
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Decl *ReadDecl() {
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return Record.readDecl();
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}
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template<typename T>
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T *ReadDeclAs() {
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return Record.readDeclAs<T>();
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}
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void ReadQualifierInfo(QualifierInfo &Info) {
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Record.readQualifierInfo(Info);
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}
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void ReadDeclarationNameLoc(DeclarationNameLoc &DNLoc, DeclarationName Name) {
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Record.readDeclarationNameLoc(DNLoc, Name);
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}
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serialization::SubmoduleID readSubmoduleID() {
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if (Record.getIdx() == Record.size())
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return 0;
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return Record.getGlobalSubmoduleID(Record.readInt());
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}
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Module *readModule() {
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return Record.getSubmodule(readSubmoduleID());
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}
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void ReadCXXRecordDefinition(CXXRecordDecl *D, bool Update);
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void ReadCXXDefinitionData(struct CXXRecordDecl::DefinitionData &Data,
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const CXXRecordDecl *D);
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void MergeDefinitionData(CXXRecordDecl *D,
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struct CXXRecordDecl::DefinitionData &&NewDD);
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void ReadObjCDefinitionData(struct ObjCInterfaceDecl::DefinitionData &Data);
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void MergeDefinitionData(ObjCInterfaceDecl *D,
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struct ObjCInterfaceDecl::DefinitionData &&NewDD);
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void ReadObjCDefinitionData(struct ObjCProtocolDecl::DefinitionData &Data);
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void MergeDefinitionData(ObjCProtocolDecl *D,
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struct ObjCProtocolDecl::DefinitionData &&NewDD);
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static NamedDecl *getAnonymousDeclForMerging(ASTReader &Reader,
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DeclContext *DC,
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unsigned Index);
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static void setAnonymousDeclForMerging(ASTReader &Reader, DeclContext *DC,
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unsigned Index, NamedDecl *D);
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/// Results from loading a RedeclarableDecl.
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class RedeclarableResult {
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Decl *MergeWith;
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GlobalDeclID FirstID;
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bool IsKeyDecl;
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public:
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RedeclarableResult(Decl *MergeWith, GlobalDeclID FirstID, bool IsKeyDecl)
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: MergeWith(MergeWith), FirstID(FirstID), IsKeyDecl(IsKeyDecl) {}
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/// \brief Retrieve the first ID.
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GlobalDeclID getFirstID() const { return FirstID; }
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/// \brief Is this declaration a key declaration?
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bool isKeyDecl() const { return IsKeyDecl; }
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/// \brief Get a known declaration that this should be merged with, if
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/// any.
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Decl *getKnownMergeTarget() const { return MergeWith; }
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};
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/// \brief Class used to capture the result of searching for an existing
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/// declaration of a specific kind and name, along with the ability
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/// to update the place where this result was found (the declaration
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/// chain hanging off an identifier or the DeclContext we searched in)
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/// if requested.
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class FindExistingResult {
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ASTReader &Reader;
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NamedDecl *New;
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NamedDecl *Existing;
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bool AddResult;
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unsigned AnonymousDeclNumber;
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IdentifierInfo *TypedefNameForLinkage;
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void operator=(FindExistingResult &&) = delete;
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public:
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FindExistingResult(ASTReader &Reader)
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: Reader(Reader), New(nullptr), Existing(nullptr), AddResult(false),
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AnonymousDeclNumber(0), TypedefNameForLinkage(nullptr) {}
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FindExistingResult(ASTReader &Reader, NamedDecl *New, NamedDecl *Existing,
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unsigned AnonymousDeclNumber,
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IdentifierInfo *TypedefNameForLinkage)
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: Reader(Reader), New(New), Existing(Existing), AddResult(true),
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AnonymousDeclNumber(AnonymousDeclNumber),
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TypedefNameForLinkage(TypedefNameForLinkage) {}
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FindExistingResult(FindExistingResult &&Other)
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: Reader(Other.Reader), New(Other.New), Existing(Other.Existing),
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AddResult(Other.AddResult),
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AnonymousDeclNumber(Other.AnonymousDeclNumber),
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TypedefNameForLinkage(Other.TypedefNameForLinkage) {
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Other.AddResult = false;
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}
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~FindExistingResult();
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/// \brief Suppress the addition of this result into the known set of
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/// names.
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void suppress() { AddResult = false; }
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operator NamedDecl*() const { return Existing; }
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template<typename T>
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operator T*() const { return dyn_cast_or_null<T>(Existing); }
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};
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static DeclContext *getPrimaryContextForMerging(ASTReader &Reader,
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DeclContext *DC);
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FindExistingResult findExisting(NamedDecl *D);
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public:
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ASTDeclReader(ASTReader &Reader, ASTRecordReader &Record,
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ASTReader::RecordLocation Loc,
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DeclID thisDeclID, SourceLocation ThisDeclLoc)
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: Reader(Reader), Record(Record), Loc(Loc),
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ThisDeclID(thisDeclID), ThisDeclLoc(ThisDeclLoc),
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TypeIDForTypeDecl(0), NamedDeclForTagDecl(0),
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TypedefNameForLinkage(nullptr), HasPendingBody(false),
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IsDeclMarkedUsed(false) {}
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template <typename T> static
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void AddLazySpecializations(T *D,
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SmallVectorImpl<serialization::DeclID>& IDs) {
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if (IDs.empty())
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return;
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// FIXME: We should avoid this pattern of getting the ASTContext.
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ASTContext &C = D->getASTContext();
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auto *&LazySpecializations = D->getCommonPtr()->LazySpecializations;
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if (auto &Old = LazySpecializations) {
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IDs.insert(IDs.end(), Old + 1, Old + 1 + Old[0]);
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std::sort(IDs.begin(), IDs.end());
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IDs.erase(std::unique(IDs.begin(), IDs.end()), IDs.end());
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}
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auto *Result = new (C) serialization::DeclID[1 + IDs.size()];
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*Result = IDs.size();
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std::copy(IDs.begin(), IDs.end(), Result + 1);
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LazySpecializations = Result;
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}
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template <typename DeclT>
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static Decl *getMostRecentDeclImpl(Redeclarable<DeclT> *D);
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static Decl *getMostRecentDeclImpl(...);
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static Decl *getMostRecentDecl(Decl *D);
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template <typename DeclT>
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static void attachPreviousDeclImpl(ASTReader &Reader,
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Redeclarable<DeclT> *D, Decl *Previous,
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Decl *Canon);
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static void attachPreviousDeclImpl(ASTReader &Reader, ...);
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static void attachPreviousDecl(ASTReader &Reader, Decl *D, Decl *Previous,
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Decl *Canon);
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template <typename DeclT>
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static void attachLatestDeclImpl(Redeclarable<DeclT> *D, Decl *Latest);
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static void attachLatestDeclImpl(...);
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static void attachLatestDecl(Decl *D, Decl *latest);
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template <typename DeclT>
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static void markIncompleteDeclChainImpl(Redeclarable<DeclT> *D);
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static void markIncompleteDeclChainImpl(...);
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/// \brief Determine whether this declaration has a pending body.
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bool hasPendingBody() const { return HasPendingBody; }
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void ReadFunctionDefinition(FunctionDecl *FD);
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void Visit(Decl *D);
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void UpdateDecl(Decl *D, llvm::SmallVectorImpl<serialization::DeclID>&);
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static void setNextObjCCategory(ObjCCategoryDecl *Cat,
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ObjCCategoryDecl *Next) {
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Cat->NextClassCategory = Next;
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}
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void VisitDecl(Decl *D);
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void VisitPragmaCommentDecl(PragmaCommentDecl *D);
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void VisitPragmaDetectMismatchDecl(PragmaDetectMismatchDecl *D);
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void VisitTranslationUnitDecl(TranslationUnitDecl *TU);
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void VisitNamedDecl(NamedDecl *ND);
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void VisitLabelDecl(LabelDecl *LD);
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void VisitNamespaceDecl(NamespaceDecl *D);
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void VisitUsingDirectiveDecl(UsingDirectiveDecl *D);
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void VisitNamespaceAliasDecl(NamespaceAliasDecl *D);
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void VisitTypeDecl(TypeDecl *TD);
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RedeclarableResult VisitTypedefNameDecl(TypedefNameDecl *TD);
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void VisitTypedefDecl(TypedefDecl *TD);
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void VisitTypeAliasDecl(TypeAliasDecl *TD);
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void VisitUnresolvedUsingTypenameDecl(UnresolvedUsingTypenameDecl *D);
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RedeclarableResult VisitTagDecl(TagDecl *TD);
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void VisitEnumDecl(EnumDecl *ED);
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RedeclarableResult VisitRecordDeclImpl(RecordDecl *RD);
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void VisitRecordDecl(RecordDecl *RD) { VisitRecordDeclImpl(RD); }
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RedeclarableResult VisitCXXRecordDeclImpl(CXXRecordDecl *D);
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void VisitCXXRecordDecl(CXXRecordDecl *D) { VisitCXXRecordDeclImpl(D); }
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RedeclarableResult VisitClassTemplateSpecializationDeclImpl(
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ClassTemplateSpecializationDecl *D);
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void VisitClassTemplateSpecializationDecl(
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ClassTemplateSpecializationDecl *D) {
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VisitClassTemplateSpecializationDeclImpl(D);
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}
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void VisitClassTemplatePartialSpecializationDecl(
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ClassTemplatePartialSpecializationDecl *D);
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void VisitClassScopeFunctionSpecializationDecl(
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ClassScopeFunctionSpecializationDecl *D);
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RedeclarableResult
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VisitVarTemplateSpecializationDeclImpl(VarTemplateSpecializationDecl *D);
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void VisitVarTemplateSpecializationDecl(VarTemplateSpecializationDecl *D) {
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VisitVarTemplateSpecializationDeclImpl(D);
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}
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void VisitVarTemplatePartialSpecializationDecl(
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VarTemplatePartialSpecializationDecl *D);
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void VisitTemplateTypeParmDecl(TemplateTypeParmDecl *D);
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void VisitValueDecl(ValueDecl *VD);
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void VisitEnumConstantDecl(EnumConstantDecl *ECD);
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void VisitUnresolvedUsingValueDecl(UnresolvedUsingValueDecl *D);
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void VisitDeclaratorDecl(DeclaratorDecl *DD);
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void VisitFunctionDecl(FunctionDecl *FD);
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void VisitCXXDeductionGuideDecl(CXXDeductionGuideDecl *GD);
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void VisitCXXMethodDecl(CXXMethodDecl *D);
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void VisitCXXConstructorDecl(CXXConstructorDecl *D);
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void VisitCXXDestructorDecl(CXXDestructorDecl *D);
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void VisitCXXConversionDecl(CXXConversionDecl *D);
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void VisitFieldDecl(FieldDecl *FD);
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void VisitMSPropertyDecl(MSPropertyDecl *FD);
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void VisitIndirectFieldDecl(IndirectFieldDecl *FD);
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RedeclarableResult VisitVarDeclImpl(VarDecl *D);
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void VisitVarDecl(VarDecl *VD) { VisitVarDeclImpl(VD); }
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void VisitImplicitParamDecl(ImplicitParamDecl *PD);
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void VisitParmVarDecl(ParmVarDecl *PD);
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void VisitDecompositionDecl(DecompositionDecl *DD);
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void VisitBindingDecl(BindingDecl *BD);
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void VisitNonTypeTemplateParmDecl(NonTypeTemplateParmDecl *D);
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DeclID VisitTemplateDecl(TemplateDecl *D);
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RedeclarableResult VisitRedeclarableTemplateDecl(RedeclarableTemplateDecl *D);
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void VisitClassTemplateDecl(ClassTemplateDecl *D);
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void VisitBuiltinTemplateDecl(BuiltinTemplateDecl *D);
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void VisitVarTemplateDecl(VarTemplateDecl *D);
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void VisitFunctionTemplateDecl(FunctionTemplateDecl *D);
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void VisitTemplateTemplateParmDecl(TemplateTemplateParmDecl *D);
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void VisitTypeAliasTemplateDecl(TypeAliasTemplateDecl *D);
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void VisitUsingDecl(UsingDecl *D);
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void VisitUsingPackDecl(UsingPackDecl *D);
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void VisitUsingShadowDecl(UsingShadowDecl *D);
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void VisitConstructorUsingShadowDecl(ConstructorUsingShadowDecl *D);
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void VisitLinkageSpecDecl(LinkageSpecDecl *D);
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void VisitExportDecl(ExportDecl *D);
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void VisitFileScopeAsmDecl(FileScopeAsmDecl *AD);
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void VisitImportDecl(ImportDecl *D);
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void VisitAccessSpecDecl(AccessSpecDecl *D);
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void VisitFriendDecl(FriendDecl *D);
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void VisitFriendTemplateDecl(FriendTemplateDecl *D);
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void VisitStaticAssertDecl(StaticAssertDecl *D);
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void VisitBlockDecl(BlockDecl *BD);
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void VisitCapturedDecl(CapturedDecl *CD);
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void VisitEmptyDecl(EmptyDecl *D);
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std::pair<uint64_t, uint64_t> VisitDeclContext(DeclContext *DC);
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template<typename T>
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RedeclarableResult VisitRedeclarable(Redeclarable<T> *D);
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template<typename T>
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void mergeRedeclarable(Redeclarable<T> *D, RedeclarableResult &Redecl,
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DeclID TemplatePatternID = 0);
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template<typename T>
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void mergeRedeclarable(Redeclarable<T> *D, T *Existing,
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RedeclarableResult &Redecl,
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DeclID TemplatePatternID = 0);
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template<typename T>
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void mergeMergeable(Mergeable<T> *D);
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void mergeTemplatePattern(RedeclarableTemplateDecl *D,
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RedeclarableTemplateDecl *Existing,
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DeclID DsID, bool IsKeyDecl);
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ObjCTypeParamList *ReadObjCTypeParamList();
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// FIXME: Reorder according to DeclNodes.td?
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void VisitObjCMethodDecl(ObjCMethodDecl *D);
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void VisitObjCTypeParamDecl(ObjCTypeParamDecl *D);
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void VisitObjCContainerDecl(ObjCContainerDecl *D);
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void VisitObjCInterfaceDecl(ObjCInterfaceDecl *D);
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void VisitObjCIvarDecl(ObjCIvarDecl *D);
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void VisitObjCProtocolDecl(ObjCProtocolDecl *D);
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void VisitObjCAtDefsFieldDecl(ObjCAtDefsFieldDecl *D);
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void VisitObjCCategoryDecl(ObjCCategoryDecl *D);
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void VisitObjCImplDecl(ObjCImplDecl *D);
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void VisitObjCCategoryImplDecl(ObjCCategoryImplDecl *D);
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void VisitObjCImplementationDecl(ObjCImplementationDecl *D);
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void VisitObjCCompatibleAliasDecl(ObjCCompatibleAliasDecl *D);
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void VisitObjCPropertyDecl(ObjCPropertyDecl *D);
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void VisitObjCPropertyImplDecl(ObjCPropertyImplDecl *D);
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void VisitOMPThreadPrivateDecl(OMPThreadPrivateDecl *D);
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void VisitOMPDeclareReductionDecl(OMPDeclareReductionDecl *D);
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void VisitOMPCapturedExprDecl(OMPCapturedExprDecl *D);
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};
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} // end namespace clang
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namespace {
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/// Iterator over the redeclarations of a declaration that have already
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/// been merged into the same redeclaration chain.
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template<typename DeclT>
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class MergedRedeclIterator {
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DeclT *Start, *Canonical, *Current;
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public:
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MergedRedeclIterator() : Current(nullptr) {}
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MergedRedeclIterator(DeclT *Start)
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: Start(Start), Canonical(nullptr), Current(Start) {}
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DeclT *operator*() { return Current; }
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MergedRedeclIterator &operator++() {
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if (Current->isFirstDecl()) {
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Canonical = Current;
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Current = Current->getMostRecentDecl();
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} else
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Current = Current->getPreviousDecl();
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// If we started in the merged portion, we'll reach our start position
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// eventually. Otherwise, we'll never reach it, but the second declaration
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// we reached was the canonical declaration, so stop when we see that one
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// again.
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if (Current == Start || Current == Canonical)
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Current = nullptr;
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return *this;
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}
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friend bool operator!=(const MergedRedeclIterator &A,
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const MergedRedeclIterator &B) {
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return A.Current != B.Current;
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}
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};
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} // end anonymous namespace
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template <typename DeclT>
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static llvm::iterator_range<MergedRedeclIterator<DeclT>>
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merged_redecls(DeclT *D) {
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return llvm::make_range(MergedRedeclIterator<DeclT>(D),
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MergedRedeclIterator<DeclT>());
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}
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uint64_t ASTDeclReader::GetCurrentCursorOffset() {
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return Loc.F->DeclsCursor.GetCurrentBitNo() + Loc.F->GlobalBitOffset;
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}
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void ASTDeclReader::ReadFunctionDefinition(FunctionDecl *FD) {
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if (Record.readInt())
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Reader.DefinitionSource[FD] = Loc.F->Kind == ModuleKind::MK_MainFile;
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if (auto *CD = dyn_cast<CXXConstructorDecl>(FD)) {
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CD->NumCtorInitializers = Record.readInt();
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if (CD->NumCtorInitializers)
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CD->CtorInitializers = ReadGlobalOffset();
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}
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// Store the offset of the body so we can lazily load it later.
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Reader.PendingBodies[FD] = GetCurrentCursorOffset();
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HasPendingBody = true;
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}
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void ASTDeclReader::Visit(Decl *D) {
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DeclVisitor<ASTDeclReader, void>::Visit(D);
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// At this point we have deserialized and merged the decl and it is safe to
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// update its canonical decl to signal that the entire entity is used.
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D->getCanonicalDecl()->Used |= IsDeclMarkedUsed;
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IsDeclMarkedUsed = false;
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if (DeclaratorDecl *DD = dyn_cast<DeclaratorDecl>(D)) {
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if (DD->DeclInfo) {
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DeclaratorDecl::ExtInfo *Info =
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DD->DeclInfo.get<DeclaratorDecl::ExtInfo *>();
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Info->TInfo = GetTypeSourceInfo();
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}
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else {
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DD->DeclInfo = GetTypeSourceInfo();
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}
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}
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if (TypeDecl *TD = dyn_cast<TypeDecl>(D)) {
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// We have a fully initialized TypeDecl. Read its type now.
|
|
TD->setTypeForDecl(Reader.GetType(TypeIDForTypeDecl).getTypePtrOrNull());
|
|
|
|
// If this is a tag declaration with a typedef name for linkage, it's safe
|
|
// to load that typedef now.
|
|
if (NamedDeclForTagDecl)
|
|
cast<TagDecl>(D)->TypedefNameDeclOrQualifier =
|
|
cast<TypedefNameDecl>(Reader.GetDecl(NamedDeclForTagDecl));
|
|
} else if (ObjCInterfaceDecl *ID = dyn_cast<ObjCInterfaceDecl>(D)) {
|
|
// if we have a fully initialized TypeDecl, we can safely read its type now.
|
|
ID->TypeForDecl = Reader.GetType(TypeIDForTypeDecl).getTypePtrOrNull();
|
|
} else if (FunctionDecl *FD = dyn_cast<FunctionDecl>(D)) {
|
|
// FunctionDecl's body was written last after all other Stmts/Exprs.
|
|
// We only read it if FD doesn't already have a body (e.g., from another
|
|
// module).
|
|
// FIXME: Can we diagnose ODR violations somehow?
|
|
if (Record.readInt())
|
|
ReadFunctionDefinition(FD);
|
|
}
|
|
}
|
|
|
|
void ASTDeclReader::VisitDecl(Decl *D) {
|
|
if (D->isTemplateParameter() || D->isTemplateParameterPack() ||
|
|
isa<ParmVarDecl>(D)) {
|
|
// We don't want to deserialize the DeclContext of a template
|
|
// parameter or of a parameter of a function template immediately. These
|
|
// entities might be used in the formulation of its DeclContext (for
|
|
// example, a function parameter can be used in decltype() in trailing
|
|
// return type of the function). Use the translation unit DeclContext as a
|
|
// placeholder.
|
|
GlobalDeclID SemaDCIDForTemplateParmDecl = ReadDeclID();
|
|
GlobalDeclID LexicalDCIDForTemplateParmDecl = ReadDeclID();
|
|
if (!LexicalDCIDForTemplateParmDecl)
|
|
LexicalDCIDForTemplateParmDecl = SemaDCIDForTemplateParmDecl;
|
|
Reader.addPendingDeclContextInfo(D,
|
|
SemaDCIDForTemplateParmDecl,
|
|
LexicalDCIDForTemplateParmDecl);
|
|
D->setDeclContext(Reader.getContext().getTranslationUnitDecl());
|
|
} else {
|
|
DeclContext *SemaDC = ReadDeclAs<DeclContext>();
|
|
DeclContext *LexicalDC = ReadDeclAs<DeclContext>();
|
|
if (!LexicalDC)
|
|
LexicalDC = SemaDC;
|
|
DeclContext *MergedSemaDC = Reader.MergedDeclContexts.lookup(SemaDC);
|
|
// Avoid calling setLexicalDeclContext() directly because it uses
|
|
// Decl::getASTContext() internally which is unsafe during derialization.
|
|
D->setDeclContextsImpl(MergedSemaDC ? MergedSemaDC : SemaDC, LexicalDC,
|
|
Reader.getContext());
|
|
}
|
|
D->setLocation(ThisDeclLoc);
|
|
D->setInvalidDecl(Record.readInt());
|
|
if (Record.readInt()) { // hasAttrs
|
|
AttrVec Attrs;
|
|
Record.readAttributes(Attrs);
|
|
// Avoid calling setAttrs() directly because it uses Decl::getASTContext()
|
|
// internally which is unsafe during derialization.
|
|
D->setAttrsImpl(Attrs, Reader.getContext());
|
|
}
|
|
D->setImplicit(Record.readInt());
|
|
D->Used = Record.readInt();
|
|
IsDeclMarkedUsed |= D->Used;
|
|
D->setReferenced(Record.readInt());
|
|
D->setTopLevelDeclInObjCContainer(Record.readInt());
|
|
D->setAccess((AccessSpecifier)Record.readInt());
|
|
D->FromASTFile = true;
|
|
bool ModulePrivate = Record.readInt();
|
|
|
|
// Determine whether this declaration is part of a (sub)module. If so, it
|
|
// may not yet be visible.
|
|
if (unsigned SubmoduleID = readSubmoduleID()) {
|
|
// Store the owning submodule ID in the declaration.
|
|
D->setModuleOwnershipKind(
|
|
ModulePrivate ? Decl::ModuleOwnershipKind::ModulePrivate
|
|
: Decl::ModuleOwnershipKind::VisibleWhenImported);
|
|
D->setOwningModuleID(SubmoduleID);
|
|
|
|
if (ModulePrivate) {
|
|
// Module-private declarations are never visible, so there is no work to
|
|
// do.
|
|
} else if (Reader.getContext().getLangOpts().ModulesLocalVisibility) {
|
|
// If local visibility is being tracked, this declaration will become
|
|
// hidden and visible as the owning module does.
|
|
} else if (Module *Owner = Reader.getSubmodule(SubmoduleID)) {
|
|
// Mark the declaration as visible when its owning module becomes visible.
|
|
if (Owner->NameVisibility == Module::AllVisible)
|
|
D->setVisibleDespiteOwningModule();
|
|
else
|
|
Reader.HiddenNamesMap[Owner].push_back(D);
|
|
}
|
|
} else if (ModulePrivate) {
|
|
D->setModuleOwnershipKind(Decl::ModuleOwnershipKind::ModulePrivate);
|
|
}
|
|
}
|
|
|
|
void ASTDeclReader::VisitPragmaCommentDecl(PragmaCommentDecl *D) {
|
|
VisitDecl(D);
|
|
D->setLocation(ReadSourceLocation());
|
|
D->CommentKind = (PragmaMSCommentKind)Record.readInt();
|
|
std::string Arg = ReadString();
|
|
memcpy(D->getTrailingObjects<char>(), Arg.data(), Arg.size());
|
|
D->getTrailingObjects<char>()[Arg.size()] = '\0';
|
|
}
|
|
|
|
void ASTDeclReader::VisitPragmaDetectMismatchDecl(PragmaDetectMismatchDecl *D) {
|
|
VisitDecl(D);
|
|
D->setLocation(ReadSourceLocation());
|
|
std::string Name = ReadString();
|
|
memcpy(D->getTrailingObjects<char>(), Name.data(), Name.size());
|
|
D->getTrailingObjects<char>()[Name.size()] = '\0';
|
|
|
|
D->ValueStart = Name.size() + 1;
|
|
std::string Value = ReadString();
|
|
memcpy(D->getTrailingObjects<char>() + D->ValueStart, Value.data(),
|
|
Value.size());
|
|
D->getTrailingObjects<char>()[D->ValueStart + Value.size()] = '\0';
|
|
}
|
|
|
|
void ASTDeclReader::VisitTranslationUnitDecl(TranslationUnitDecl *TU) {
|
|
llvm_unreachable("Translation units are not serialized");
|
|
}
|
|
|
|
void ASTDeclReader::VisitNamedDecl(NamedDecl *ND) {
|
|
VisitDecl(ND);
|
|
ND->setDeclName(Record.readDeclarationName());
|
|
AnonymousDeclNumber = Record.readInt();
|
|
}
|
|
|
|
void ASTDeclReader::VisitTypeDecl(TypeDecl *TD) {
|
|
VisitNamedDecl(TD);
|
|
TD->setLocStart(ReadSourceLocation());
|
|
// Delay type reading until after we have fully initialized the decl.
|
|
TypeIDForTypeDecl = Record.getGlobalTypeID(Record.readInt());
|
|
}
|
|
|
|
ASTDeclReader::RedeclarableResult
|
|
ASTDeclReader::VisitTypedefNameDecl(TypedefNameDecl *TD) {
|
|
RedeclarableResult Redecl = VisitRedeclarable(TD);
|
|
VisitTypeDecl(TD);
|
|
TypeSourceInfo *TInfo = GetTypeSourceInfo();
|
|
if (Record.readInt()) { // isModed
|
|
QualType modedT = Record.readType();
|
|
TD->setModedTypeSourceInfo(TInfo, modedT);
|
|
} else
|
|
TD->setTypeSourceInfo(TInfo);
|
|
// Read and discard the declaration for which this is a typedef name for
|
|
// linkage, if it exists. We cannot rely on our type to pull in this decl,
|
|
// because it might have been merged with a type from another module and
|
|
// thus might not refer to our version of the declaration.
|
|
ReadDecl();
|
|
return Redecl;
|
|
}
|
|
|
|
void ASTDeclReader::VisitTypedefDecl(TypedefDecl *TD) {
|
|
RedeclarableResult Redecl = VisitTypedefNameDecl(TD);
|
|
mergeRedeclarable(TD, Redecl);
|
|
}
|
|
|
|
void ASTDeclReader::VisitTypeAliasDecl(TypeAliasDecl *TD) {
|
|
RedeclarableResult Redecl = VisitTypedefNameDecl(TD);
|
|
if (auto *Template = ReadDeclAs<TypeAliasTemplateDecl>())
|
|
// Merged when we merge the template.
|
|
TD->setDescribedAliasTemplate(Template);
|
|
else
|
|
mergeRedeclarable(TD, Redecl);
|
|
}
|
|
|
|
ASTDeclReader::RedeclarableResult ASTDeclReader::VisitTagDecl(TagDecl *TD) {
|
|
RedeclarableResult Redecl = VisitRedeclarable(TD);
|
|
VisitTypeDecl(TD);
|
|
|
|
TD->IdentifierNamespace = Record.readInt();
|
|
TD->setTagKind((TagDecl::TagKind)Record.readInt());
|
|
if (!isa<CXXRecordDecl>(TD))
|
|
TD->setCompleteDefinition(Record.readInt());
|
|
TD->setEmbeddedInDeclarator(Record.readInt());
|
|
TD->setFreeStanding(Record.readInt());
|
|
TD->setCompleteDefinitionRequired(Record.readInt());
|
|
TD->setBraceRange(ReadSourceRange());
|
|
|
|
switch (Record.readInt()) {
|
|
case 0:
|
|
break;
|
|
case 1: { // ExtInfo
|
|
TagDecl::ExtInfo *Info = new (Reader.getContext()) TagDecl::ExtInfo();
|
|
ReadQualifierInfo(*Info);
|
|
TD->TypedefNameDeclOrQualifier = Info;
|
|
break;
|
|
}
|
|
case 2: // TypedefNameForAnonDecl
|
|
NamedDeclForTagDecl = ReadDeclID();
|
|
TypedefNameForLinkage = Record.getIdentifierInfo();
|
|
break;
|
|
default:
|
|
llvm_unreachable("unexpected tag info kind");
|
|
}
|
|
|
|
if (!isa<CXXRecordDecl>(TD))
|
|
mergeRedeclarable(TD, Redecl);
|
|
return Redecl;
|
|
}
|
|
|
|
void ASTDeclReader::VisitEnumDecl(EnumDecl *ED) {
|
|
VisitTagDecl(ED);
|
|
if (TypeSourceInfo *TI = GetTypeSourceInfo())
|
|
ED->setIntegerTypeSourceInfo(TI);
|
|
else
|
|
ED->setIntegerType(Record.readType());
|
|
ED->setPromotionType(Record.readType());
|
|
ED->setNumPositiveBits(Record.readInt());
|
|
ED->setNumNegativeBits(Record.readInt());
|
|
ED->IsScoped = Record.readInt();
|
|
ED->IsScopedUsingClassTag = Record.readInt();
|
|
ED->IsFixed = Record.readInt();
|
|
|
|
// If this is a definition subject to the ODR, and we already have a
|
|
// definition, merge this one into it.
|
|
if (ED->IsCompleteDefinition &&
|
|
Reader.getContext().getLangOpts().Modules &&
|
|
Reader.getContext().getLangOpts().CPlusPlus) {
|
|
EnumDecl *&OldDef = Reader.EnumDefinitions[ED->getCanonicalDecl()];
|
|
if (!OldDef) {
|
|
// This is the first time we've seen an imported definition. Look for a
|
|
// local definition before deciding that we are the first definition.
|
|
for (auto *D : merged_redecls(ED->getCanonicalDecl())) {
|
|
if (!D->isFromASTFile() && D->isCompleteDefinition()) {
|
|
OldDef = D;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
if (OldDef) {
|
|
Reader.MergedDeclContexts.insert(std::make_pair(ED, OldDef));
|
|
ED->IsCompleteDefinition = false;
|
|
Reader.mergeDefinitionVisibility(OldDef, ED);
|
|
} else {
|
|
OldDef = ED;
|
|
}
|
|
}
|
|
|
|
if (EnumDecl *InstED = ReadDeclAs<EnumDecl>()) {
|
|
TemplateSpecializationKind TSK =
|
|
(TemplateSpecializationKind)Record.readInt();
|
|
SourceLocation POI = ReadSourceLocation();
|
|
ED->setInstantiationOfMemberEnum(Reader.getContext(), InstED, TSK);
|
|
ED->getMemberSpecializationInfo()->setPointOfInstantiation(POI);
|
|
}
|
|
}
|
|
|
|
ASTDeclReader::RedeclarableResult
|
|
ASTDeclReader::VisitRecordDeclImpl(RecordDecl *RD) {
|
|
RedeclarableResult Redecl = VisitTagDecl(RD);
|
|
RD->setHasFlexibleArrayMember(Record.readInt());
|
|
RD->setAnonymousStructOrUnion(Record.readInt());
|
|
RD->setHasObjectMember(Record.readInt());
|
|
RD->setHasVolatileMember(Record.readInt());
|
|
return Redecl;
|
|
}
|
|
|
|
void ASTDeclReader::VisitValueDecl(ValueDecl *VD) {
|
|
VisitNamedDecl(VD);
|
|
VD->setType(Record.readType());
|
|
}
|
|
|
|
void ASTDeclReader::VisitEnumConstantDecl(EnumConstantDecl *ECD) {
|
|
VisitValueDecl(ECD);
|
|
if (Record.readInt())
|
|
ECD->setInitExpr(Record.readExpr());
|
|
ECD->setInitVal(Record.readAPSInt());
|
|
mergeMergeable(ECD);
|
|
}
|
|
|
|
void ASTDeclReader::VisitDeclaratorDecl(DeclaratorDecl *DD) {
|
|
VisitValueDecl(DD);
|
|
DD->setInnerLocStart(ReadSourceLocation());
|
|
if (Record.readInt()) { // hasExtInfo
|
|
DeclaratorDecl::ExtInfo *Info
|
|
= new (Reader.getContext()) DeclaratorDecl::ExtInfo();
|
|
ReadQualifierInfo(*Info);
|
|
DD->DeclInfo = Info;
|
|
}
|
|
}
|
|
|
|
void ASTDeclReader::VisitFunctionDecl(FunctionDecl *FD) {
|
|
RedeclarableResult Redecl = VisitRedeclarable(FD);
|
|
VisitDeclaratorDecl(FD);
|
|
|
|
ReadDeclarationNameLoc(FD->DNLoc, FD->getDeclName());
|
|
FD->IdentifierNamespace = Record.readInt();
|
|
|
|
// FunctionDecl's body is handled last at ASTDeclReader::Visit,
|
|
// after everything else is read.
|
|
|
|
FD->SClass = (StorageClass)Record.readInt();
|
|
FD->IsInline = Record.readInt();
|
|
FD->IsInlineSpecified = Record.readInt();
|
|
FD->IsExplicitSpecified = Record.readInt();
|
|
FD->IsVirtualAsWritten = Record.readInt();
|
|
FD->IsPure = Record.readInt();
|
|
FD->HasInheritedPrototype = Record.readInt();
|
|
FD->HasWrittenPrototype = Record.readInt();
|
|
FD->IsDeleted = Record.readInt();
|
|
FD->IsTrivial = Record.readInt();
|
|
FD->IsDefaulted = Record.readInt();
|
|
FD->IsExplicitlyDefaulted = Record.readInt();
|
|
FD->HasImplicitReturnZero = Record.readInt();
|
|
FD->IsConstexpr = Record.readInt();
|
|
FD->UsesSEHTry = Record.readInt();
|
|
FD->HasSkippedBody = Record.readInt();
|
|
FD->IsMultiVersion = Record.readInt();
|
|
FD->IsLateTemplateParsed = Record.readInt();
|
|
FD->setCachedLinkage(Linkage(Record.readInt()));
|
|
FD->EndRangeLoc = ReadSourceLocation();
|
|
|
|
FD->ODRHash = Record.readInt();
|
|
FD->HasODRHash = true;
|
|
|
|
switch ((FunctionDecl::TemplatedKind)Record.readInt()) {
|
|
case FunctionDecl::TK_NonTemplate:
|
|
mergeRedeclarable(FD, Redecl);
|
|
break;
|
|
case FunctionDecl::TK_FunctionTemplate:
|
|
// Merged when we merge the template.
|
|
FD->setDescribedFunctionTemplate(ReadDeclAs<FunctionTemplateDecl>());
|
|
break;
|
|
case FunctionDecl::TK_MemberSpecialization: {
|
|
FunctionDecl *InstFD = ReadDeclAs<FunctionDecl>();
|
|
TemplateSpecializationKind TSK =
|
|
(TemplateSpecializationKind)Record.readInt();
|
|
SourceLocation POI = ReadSourceLocation();
|
|
FD->setInstantiationOfMemberFunction(Reader.getContext(), InstFD, TSK);
|
|
FD->getMemberSpecializationInfo()->setPointOfInstantiation(POI);
|
|
mergeRedeclarable(FD, Redecl);
|
|
break;
|
|
}
|
|
case FunctionDecl::TK_FunctionTemplateSpecialization: {
|
|
FunctionTemplateDecl *Template = ReadDeclAs<FunctionTemplateDecl>();
|
|
TemplateSpecializationKind TSK =
|
|
(TemplateSpecializationKind)Record.readInt();
|
|
|
|
// Template arguments.
|
|
SmallVector<TemplateArgument, 8> TemplArgs;
|
|
Record.readTemplateArgumentList(TemplArgs, /*Canonicalize*/ true);
|
|
|
|
// Template args as written.
|
|
SmallVector<TemplateArgumentLoc, 8> TemplArgLocs;
|
|
SourceLocation LAngleLoc, RAngleLoc;
|
|
bool HasTemplateArgumentsAsWritten = Record.readInt();
|
|
if (HasTemplateArgumentsAsWritten) {
|
|
unsigned NumTemplateArgLocs = Record.readInt();
|
|
TemplArgLocs.reserve(NumTemplateArgLocs);
|
|
for (unsigned i=0; i != NumTemplateArgLocs; ++i)
|
|
TemplArgLocs.push_back(Record.readTemplateArgumentLoc());
|
|
|
|
LAngleLoc = ReadSourceLocation();
|
|
RAngleLoc = ReadSourceLocation();
|
|
}
|
|
|
|
SourceLocation POI = ReadSourceLocation();
|
|
|
|
ASTContext &C = Reader.getContext();
|
|
TemplateArgumentList *TemplArgList
|
|
= TemplateArgumentList::CreateCopy(C, TemplArgs);
|
|
TemplateArgumentListInfo TemplArgsInfo(LAngleLoc, RAngleLoc);
|
|
for (unsigned i=0, e = TemplArgLocs.size(); i != e; ++i)
|
|
TemplArgsInfo.addArgument(TemplArgLocs[i]);
|
|
FunctionTemplateSpecializationInfo *FTInfo
|
|
= FunctionTemplateSpecializationInfo::Create(C, FD, Template, TSK,
|
|
TemplArgList,
|
|
HasTemplateArgumentsAsWritten ? &TemplArgsInfo
|
|
: nullptr,
|
|
POI);
|
|
FD->TemplateOrSpecialization = FTInfo;
|
|
|
|
if (FD->isCanonicalDecl()) { // if canonical add to template's set.
|
|
// The template that contains the specializations set. It's not safe to
|
|
// use getCanonicalDecl on Template since it may still be initializing.
|
|
FunctionTemplateDecl *CanonTemplate = ReadDeclAs<FunctionTemplateDecl>();
|
|
// Get the InsertPos by FindNodeOrInsertPos() instead of calling
|
|
// InsertNode(FTInfo) directly to avoid the getASTContext() call in
|
|
// FunctionTemplateSpecializationInfo's Profile().
|
|
// We avoid getASTContext because a decl in the parent hierarchy may
|
|
// be initializing.
|
|
llvm::FoldingSetNodeID ID;
|
|
FunctionTemplateSpecializationInfo::Profile(ID, TemplArgs, C);
|
|
void *InsertPos = nullptr;
|
|
FunctionTemplateDecl::Common *CommonPtr = CanonTemplate->getCommonPtr();
|
|
FunctionTemplateSpecializationInfo *ExistingInfo =
|
|
CommonPtr->Specializations.FindNodeOrInsertPos(ID, InsertPos);
|
|
if (InsertPos)
|
|
CommonPtr->Specializations.InsertNode(FTInfo, InsertPos);
|
|
else {
|
|
assert(Reader.getContext().getLangOpts().Modules &&
|
|
"already deserialized this template specialization");
|
|
mergeRedeclarable(FD, ExistingInfo->Function, Redecl);
|
|
}
|
|
}
|
|
break;
|
|
}
|
|
case FunctionDecl::TK_DependentFunctionTemplateSpecialization: {
|
|
// Templates.
|
|
UnresolvedSet<8> TemplDecls;
|
|
unsigned NumTemplates = Record.readInt();
|
|
while (NumTemplates--)
|
|
TemplDecls.addDecl(ReadDeclAs<NamedDecl>());
|
|
|
|
// Templates args.
|
|
TemplateArgumentListInfo TemplArgs;
|
|
unsigned NumArgs = Record.readInt();
|
|
while (NumArgs--)
|
|
TemplArgs.addArgument(Record.readTemplateArgumentLoc());
|
|
TemplArgs.setLAngleLoc(ReadSourceLocation());
|
|
TemplArgs.setRAngleLoc(ReadSourceLocation());
|
|
|
|
FD->setDependentTemplateSpecialization(Reader.getContext(),
|
|
TemplDecls, TemplArgs);
|
|
// These are not merged; we don't need to merge redeclarations of dependent
|
|
// template friends.
|
|
break;
|
|
}
|
|
}
|
|
|
|
// Read in the parameters.
|
|
unsigned NumParams = Record.readInt();
|
|
SmallVector<ParmVarDecl *, 16> Params;
|
|
Params.reserve(NumParams);
|
|
for (unsigned I = 0; I != NumParams; ++I)
|
|
Params.push_back(ReadDeclAs<ParmVarDecl>());
|
|
FD->setParams(Reader.getContext(), Params);
|
|
}
|
|
|
|
void ASTDeclReader::VisitObjCMethodDecl(ObjCMethodDecl *MD) {
|
|
VisitNamedDecl(MD);
|
|
if (Record.readInt()) {
|
|
// Load the body on-demand. Most clients won't care, because method
|
|
// definitions rarely show up in headers.
|
|
Reader.PendingBodies[MD] = GetCurrentCursorOffset();
|
|
HasPendingBody = true;
|
|
MD->setSelfDecl(ReadDeclAs<ImplicitParamDecl>());
|
|
MD->setCmdDecl(ReadDeclAs<ImplicitParamDecl>());
|
|
}
|
|
MD->setInstanceMethod(Record.readInt());
|
|
MD->setVariadic(Record.readInt());
|
|
MD->setPropertyAccessor(Record.readInt());
|
|
MD->setDefined(Record.readInt());
|
|
MD->IsOverriding = Record.readInt();
|
|
MD->HasSkippedBody = Record.readInt();
|
|
|
|
MD->IsRedeclaration = Record.readInt();
|
|
MD->HasRedeclaration = Record.readInt();
|
|
if (MD->HasRedeclaration)
|
|
Reader.getContext().setObjCMethodRedeclaration(MD,
|
|
ReadDeclAs<ObjCMethodDecl>());
|
|
|
|
MD->setDeclImplementation((ObjCMethodDecl::ImplementationControl)Record.readInt());
|
|
MD->setObjCDeclQualifier((Decl::ObjCDeclQualifier)Record.readInt());
|
|
MD->SetRelatedResultType(Record.readInt());
|
|
MD->setReturnType(Record.readType());
|
|
MD->setReturnTypeSourceInfo(GetTypeSourceInfo());
|
|
MD->DeclEndLoc = ReadSourceLocation();
|
|
unsigned NumParams = Record.readInt();
|
|
SmallVector<ParmVarDecl *, 16> Params;
|
|
Params.reserve(NumParams);
|
|
for (unsigned I = 0; I != NumParams; ++I)
|
|
Params.push_back(ReadDeclAs<ParmVarDecl>());
|
|
|
|
MD->SelLocsKind = Record.readInt();
|
|
unsigned NumStoredSelLocs = Record.readInt();
|
|
SmallVector<SourceLocation, 16> SelLocs;
|
|
SelLocs.reserve(NumStoredSelLocs);
|
|
for (unsigned i = 0; i != NumStoredSelLocs; ++i)
|
|
SelLocs.push_back(ReadSourceLocation());
|
|
|
|
MD->setParamsAndSelLocs(Reader.getContext(), Params, SelLocs);
|
|
}
|
|
|
|
void ASTDeclReader::VisitObjCTypeParamDecl(ObjCTypeParamDecl *D) {
|
|
VisitTypedefNameDecl(D);
|
|
|
|
D->Variance = Record.readInt();
|
|
D->Index = Record.readInt();
|
|
D->VarianceLoc = ReadSourceLocation();
|
|
D->ColonLoc = ReadSourceLocation();
|
|
}
|
|
|
|
void ASTDeclReader::VisitObjCContainerDecl(ObjCContainerDecl *CD) {
|
|
VisitNamedDecl(CD);
|
|
CD->setAtStartLoc(ReadSourceLocation());
|
|
CD->setAtEndRange(ReadSourceRange());
|
|
}
|
|
|
|
ObjCTypeParamList *ASTDeclReader::ReadObjCTypeParamList() {
|
|
unsigned numParams = Record.readInt();
|
|
if (numParams == 0)
|
|
return nullptr;
|
|
|
|
SmallVector<ObjCTypeParamDecl *, 4> typeParams;
|
|
typeParams.reserve(numParams);
|
|
for (unsigned i = 0; i != numParams; ++i) {
|
|
auto typeParam = ReadDeclAs<ObjCTypeParamDecl>();
|
|
if (!typeParam)
|
|
return nullptr;
|
|
|
|
typeParams.push_back(typeParam);
|
|
}
|
|
|
|
SourceLocation lAngleLoc = ReadSourceLocation();
|
|
SourceLocation rAngleLoc = ReadSourceLocation();
|
|
|
|
return ObjCTypeParamList::create(Reader.getContext(), lAngleLoc,
|
|
typeParams, rAngleLoc);
|
|
}
|
|
|
|
void ASTDeclReader::ReadObjCDefinitionData(
|
|
struct ObjCInterfaceDecl::DefinitionData &Data) {
|
|
// Read the superclass.
|
|
Data.SuperClassTInfo = GetTypeSourceInfo();
|
|
|
|
Data.EndLoc = ReadSourceLocation();
|
|
Data.HasDesignatedInitializers = Record.readInt();
|
|
|
|
// Read the directly referenced protocols and their SourceLocations.
|
|
unsigned NumProtocols = Record.readInt();
|
|
SmallVector<ObjCProtocolDecl *, 16> Protocols;
|
|
Protocols.reserve(NumProtocols);
|
|
for (unsigned I = 0; I != NumProtocols; ++I)
|
|
Protocols.push_back(ReadDeclAs<ObjCProtocolDecl>());
|
|
SmallVector<SourceLocation, 16> ProtoLocs;
|
|
ProtoLocs.reserve(NumProtocols);
|
|
for (unsigned I = 0; I != NumProtocols; ++I)
|
|
ProtoLocs.push_back(ReadSourceLocation());
|
|
Data.ReferencedProtocols.set(Protocols.data(), NumProtocols, ProtoLocs.data(),
|
|
Reader.getContext());
|
|
|
|
// Read the transitive closure of protocols referenced by this class.
|
|
NumProtocols = Record.readInt();
|
|
Protocols.clear();
|
|
Protocols.reserve(NumProtocols);
|
|
for (unsigned I = 0; I != NumProtocols; ++I)
|
|
Protocols.push_back(ReadDeclAs<ObjCProtocolDecl>());
|
|
Data.AllReferencedProtocols.set(Protocols.data(), NumProtocols,
|
|
Reader.getContext());
|
|
}
|
|
|
|
void ASTDeclReader::MergeDefinitionData(ObjCInterfaceDecl *D,
|
|
struct ObjCInterfaceDecl::DefinitionData &&NewDD) {
|
|
// FIXME: odr checking?
|
|
}
|
|
|
|
void ASTDeclReader::VisitObjCInterfaceDecl(ObjCInterfaceDecl *ID) {
|
|
RedeclarableResult Redecl = VisitRedeclarable(ID);
|
|
VisitObjCContainerDecl(ID);
|
|
TypeIDForTypeDecl = Record.getGlobalTypeID(Record.readInt());
|
|
mergeRedeclarable(ID, Redecl);
|
|
|
|
ID->TypeParamList = ReadObjCTypeParamList();
|
|
if (Record.readInt()) {
|
|
// Read the definition.
|
|
ID->allocateDefinitionData();
|
|
|
|
ReadObjCDefinitionData(ID->data());
|
|
ObjCInterfaceDecl *Canon = ID->getCanonicalDecl();
|
|
if (Canon->Data.getPointer()) {
|
|
// If we already have a definition, keep the definition invariant and
|
|
// merge the data.
|
|
MergeDefinitionData(Canon, std::move(ID->data()));
|
|
ID->Data = Canon->Data;
|
|
} else {
|
|
// Set the definition data of the canonical declaration, so other
|
|
// redeclarations will see it.
|
|
ID->getCanonicalDecl()->Data = ID->Data;
|
|
|
|
// We will rebuild this list lazily.
|
|
ID->setIvarList(nullptr);
|
|
}
|
|
|
|
// Note that we have deserialized a definition.
|
|
Reader.PendingDefinitions.insert(ID);
|
|
|
|
// Note that we've loaded this Objective-C class.
|
|
Reader.ObjCClassesLoaded.push_back(ID);
|
|
} else {
|
|
ID->Data = ID->getCanonicalDecl()->Data;
|
|
}
|
|
}
|
|
|
|
void ASTDeclReader::VisitObjCIvarDecl(ObjCIvarDecl *IVD) {
|
|
VisitFieldDecl(IVD);
|
|
IVD->setAccessControl((ObjCIvarDecl::AccessControl)Record.readInt());
|
|
// This field will be built lazily.
|
|
IVD->setNextIvar(nullptr);
|
|
bool synth = Record.readInt();
|
|
IVD->setSynthesize(synth);
|
|
}
|
|
|
|
void ASTDeclReader::ReadObjCDefinitionData(
|
|
struct ObjCProtocolDecl::DefinitionData &Data) {
|
|
|
|
unsigned NumProtoRefs = Record.readInt();
|
|
SmallVector<ObjCProtocolDecl *, 16> ProtoRefs;
|
|
ProtoRefs.reserve(NumProtoRefs);
|
|
for (unsigned I = 0; I != NumProtoRefs; ++I)
|
|
ProtoRefs.push_back(ReadDeclAs<ObjCProtocolDecl>());
|
|
SmallVector<SourceLocation, 16> ProtoLocs;
|
|
ProtoLocs.reserve(NumProtoRefs);
|
|
for (unsigned I = 0; I != NumProtoRefs; ++I)
|
|
ProtoLocs.push_back(ReadSourceLocation());
|
|
Data.ReferencedProtocols.set(ProtoRefs.data(), NumProtoRefs,
|
|
ProtoLocs.data(), Reader.getContext());
|
|
}
|
|
|
|
void ASTDeclReader::MergeDefinitionData(ObjCProtocolDecl *D,
|
|
struct ObjCProtocolDecl::DefinitionData &&NewDD) {
|
|
// FIXME: odr checking?
|
|
}
|
|
|
|
void ASTDeclReader::VisitObjCProtocolDecl(ObjCProtocolDecl *PD) {
|
|
RedeclarableResult Redecl = VisitRedeclarable(PD);
|
|
VisitObjCContainerDecl(PD);
|
|
mergeRedeclarable(PD, Redecl);
|
|
|
|
if (Record.readInt()) {
|
|
// Read the definition.
|
|
PD->allocateDefinitionData();
|
|
|
|
ReadObjCDefinitionData(PD->data());
|
|
|
|
ObjCProtocolDecl *Canon = PD->getCanonicalDecl();
|
|
if (Canon->Data.getPointer()) {
|
|
// If we already have a definition, keep the definition invariant and
|
|
// merge the data.
|
|
MergeDefinitionData(Canon, std::move(PD->data()));
|
|
PD->Data = Canon->Data;
|
|
} else {
|
|
// Set the definition data of the canonical declaration, so other
|
|
// redeclarations will see it.
|
|
PD->getCanonicalDecl()->Data = PD->Data;
|
|
}
|
|
// Note that we have deserialized a definition.
|
|
Reader.PendingDefinitions.insert(PD);
|
|
} else {
|
|
PD->Data = PD->getCanonicalDecl()->Data;
|
|
}
|
|
}
|
|
|
|
void ASTDeclReader::VisitObjCAtDefsFieldDecl(ObjCAtDefsFieldDecl *FD) {
|
|
VisitFieldDecl(FD);
|
|
}
|
|
|
|
void ASTDeclReader::VisitObjCCategoryDecl(ObjCCategoryDecl *CD) {
|
|
VisitObjCContainerDecl(CD);
|
|
CD->setCategoryNameLoc(ReadSourceLocation());
|
|
CD->setIvarLBraceLoc(ReadSourceLocation());
|
|
CD->setIvarRBraceLoc(ReadSourceLocation());
|
|
|
|
// Note that this category has been deserialized. We do this before
|
|
// deserializing the interface declaration, so that it will consider this
|
|
/// category.
|
|
Reader.CategoriesDeserialized.insert(CD);
|
|
|
|
CD->ClassInterface = ReadDeclAs<ObjCInterfaceDecl>();
|
|
CD->TypeParamList = ReadObjCTypeParamList();
|
|
unsigned NumProtoRefs = Record.readInt();
|
|
SmallVector<ObjCProtocolDecl *, 16> ProtoRefs;
|
|
ProtoRefs.reserve(NumProtoRefs);
|
|
for (unsigned I = 0; I != NumProtoRefs; ++I)
|
|
ProtoRefs.push_back(ReadDeclAs<ObjCProtocolDecl>());
|
|
SmallVector<SourceLocation, 16> ProtoLocs;
|
|
ProtoLocs.reserve(NumProtoRefs);
|
|
for (unsigned I = 0; I != NumProtoRefs; ++I)
|
|
ProtoLocs.push_back(ReadSourceLocation());
|
|
CD->setProtocolList(ProtoRefs.data(), NumProtoRefs, ProtoLocs.data(),
|
|
Reader.getContext());
|
|
}
|
|
|
|
void ASTDeclReader::VisitObjCCompatibleAliasDecl(ObjCCompatibleAliasDecl *CAD) {
|
|
VisitNamedDecl(CAD);
|
|
CAD->setClassInterface(ReadDeclAs<ObjCInterfaceDecl>());
|
|
}
|
|
|
|
void ASTDeclReader::VisitObjCPropertyDecl(ObjCPropertyDecl *D) {
|
|
VisitNamedDecl(D);
|
|
D->setAtLoc(ReadSourceLocation());
|
|
D->setLParenLoc(ReadSourceLocation());
|
|
QualType T = Record.readType();
|
|
TypeSourceInfo *TSI = GetTypeSourceInfo();
|
|
D->setType(T, TSI);
|
|
D->setPropertyAttributes(
|
|
(ObjCPropertyDecl::PropertyAttributeKind)Record.readInt());
|
|
D->setPropertyAttributesAsWritten(
|
|
(ObjCPropertyDecl::PropertyAttributeKind)Record.readInt());
|
|
D->setPropertyImplementation(
|
|
(ObjCPropertyDecl::PropertyControl)Record.readInt());
|
|
DeclarationName GetterName = Record.readDeclarationName();
|
|
SourceLocation GetterLoc = ReadSourceLocation();
|
|
D->setGetterName(GetterName.getObjCSelector(), GetterLoc);
|
|
DeclarationName SetterName = Record.readDeclarationName();
|
|
SourceLocation SetterLoc = ReadSourceLocation();
|
|
D->setSetterName(SetterName.getObjCSelector(), SetterLoc);
|
|
D->setGetterMethodDecl(ReadDeclAs<ObjCMethodDecl>());
|
|
D->setSetterMethodDecl(ReadDeclAs<ObjCMethodDecl>());
|
|
D->setPropertyIvarDecl(ReadDeclAs<ObjCIvarDecl>());
|
|
}
|
|
|
|
void ASTDeclReader::VisitObjCImplDecl(ObjCImplDecl *D) {
|
|
VisitObjCContainerDecl(D);
|
|
D->setClassInterface(ReadDeclAs<ObjCInterfaceDecl>());
|
|
}
|
|
|
|
void ASTDeclReader::VisitObjCCategoryImplDecl(ObjCCategoryImplDecl *D) {
|
|
VisitObjCImplDecl(D);
|
|
D->CategoryNameLoc = ReadSourceLocation();
|
|
}
|
|
|
|
void ASTDeclReader::VisitObjCImplementationDecl(ObjCImplementationDecl *D) {
|
|
VisitObjCImplDecl(D);
|
|
D->setSuperClass(ReadDeclAs<ObjCInterfaceDecl>());
|
|
D->SuperLoc = ReadSourceLocation();
|
|
D->setIvarLBraceLoc(ReadSourceLocation());
|
|
D->setIvarRBraceLoc(ReadSourceLocation());
|
|
D->setHasNonZeroConstructors(Record.readInt());
|
|
D->setHasDestructors(Record.readInt());
|
|
D->NumIvarInitializers = Record.readInt();
|
|
if (D->NumIvarInitializers)
|
|
D->IvarInitializers = ReadGlobalOffset();
|
|
}
|
|
|
|
void ASTDeclReader::VisitObjCPropertyImplDecl(ObjCPropertyImplDecl *D) {
|
|
VisitDecl(D);
|
|
D->setAtLoc(ReadSourceLocation());
|
|
D->setPropertyDecl(ReadDeclAs<ObjCPropertyDecl>());
|
|
D->PropertyIvarDecl = ReadDeclAs<ObjCIvarDecl>();
|
|
D->IvarLoc = ReadSourceLocation();
|
|
D->setGetterCXXConstructor(Record.readExpr());
|
|
D->setSetterCXXAssignment(Record.readExpr());
|
|
}
|
|
|
|
void ASTDeclReader::VisitFieldDecl(FieldDecl *FD) {
|
|
VisitDeclaratorDecl(FD);
|
|
FD->Mutable = Record.readInt();
|
|
|
|
if (auto ISK = static_cast<FieldDecl::InitStorageKind>(Record.readInt())) {
|
|
FD->InitStorage.setInt(ISK);
|
|
FD->InitStorage.setPointer(ISK == FieldDecl::ISK_CapturedVLAType
|
|
? Record.readType().getAsOpaquePtr()
|
|
: Record.readExpr());
|
|
}
|
|
|
|
if (auto *BW = Record.readExpr())
|
|
FD->setBitWidth(BW);
|
|
|
|
if (!FD->getDeclName()) {
|
|
if (FieldDecl *Tmpl = ReadDeclAs<FieldDecl>())
|
|
Reader.getContext().setInstantiatedFromUnnamedFieldDecl(FD, Tmpl);
|
|
}
|
|
mergeMergeable(FD);
|
|
}
|
|
|
|
void ASTDeclReader::VisitMSPropertyDecl(MSPropertyDecl *PD) {
|
|
VisitDeclaratorDecl(PD);
|
|
PD->GetterId = Record.getIdentifierInfo();
|
|
PD->SetterId = Record.getIdentifierInfo();
|
|
}
|
|
|
|
void ASTDeclReader::VisitIndirectFieldDecl(IndirectFieldDecl *FD) {
|
|
VisitValueDecl(FD);
|
|
|
|
FD->ChainingSize = Record.readInt();
|
|
assert(FD->ChainingSize >= 2 && "Anonymous chaining must be >= 2");
|
|
FD->Chaining = new (Reader.getContext())NamedDecl*[FD->ChainingSize];
|
|
|
|
for (unsigned I = 0; I != FD->ChainingSize; ++I)
|
|
FD->Chaining[I] = ReadDeclAs<NamedDecl>();
|
|
|
|
mergeMergeable(FD);
|
|
}
|
|
|
|
ASTDeclReader::RedeclarableResult ASTDeclReader::VisitVarDeclImpl(VarDecl *VD) {
|
|
RedeclarableResult Redecl = VisitRedeclarable(VD);
|
|
VisitDeclaratorDecl(VD);
|
|
|
|
VD->VarDeclBits.SClass = (StorageClass)Record.readInt();
|
|
VD->VarDeclBits.TSCSpec = Record.readInt();
|
|
VD->VarDeclBits.InitStyle = Record.readInt();
|
|
if (!isa<ParmVarDecl>(VD)) {
|
|
VD->NonParmVarDeclBits.IsThisDeclarationADemotedDefinition =
|
|
Record.readInt();
|
|
VD->NonParmVarDeclBits.ExceptionVar = Record.readInt();
|
|
VD->NonParmVarDeclBits.NRVOVariable = Record.readInt();
|
|
VD->NonParmVarDeclBits.CXXForRangeDecl = Record.readInt();
|
|
VD->NonParmVarDeclBits.ARCPseudoStrong = Record.readInt();
|
|
VD->NonParmVarDeclBits.IsInline = Record.readInt();
|
|
VD->NonParmVarDeclBits.IsInlineSpecified = Record.readInt();
|
|
VD->NonParmVarDeclBits.IsConstexpr = Record.readInt();
|
|
VD->NonParmVarDeclBits.IsInitCapture = Record.readInt();
|
|
VD->NonParmVarDeclBits.PreviousDeclInSameBlockScope = Record.readInt();
|
|
VD->NonParmVarDeclBits.ImplicitParamKind = Record.readInt();
|
|
}
|
|
Linkage VarLinkage = Linkage(Record.readInt());
|
|
VD->setCachedLinkage(VarLinkage);
|
|
|
|
// Reconstruct the one piece of the IdentifierNamespace that we need.
|
|
if (VD->getStorageClass() == SC_Extern && VarLinkage != NoLinkage &&
|
|
VD->getLexicalDeclContext()->isFunctionOrMethod())
|
|
VD->setLocalExternDecl();
|
|
|
|
if (uint64_t Val = Record.readInt()) {
|
|
VD->setInit(Record.readExpr());
|
|
if (Val > 1) { // IsInitKnownICE = 1, IsInitNotICE = 2, IsInitICE = 3
|
|
EvaluatedStmt *Eval = VD->ensureEvaluatedStmt();
|
|
Eval->CheckedICE = true;
|
|
Eval->IsICE = Val == 3;
|
|
}
|
|
}
|
|
|
|
if (VD->getStorageDuration() == SD_Static && Record.readInt())
|
|
Reader.DefinitionSource[VD] = Loc.F->Kind == ModuleKind::MK_MainFile;
|
|
|
|
enum VarKind {
|
|
VarNotTemplate = 0, VarTemplate, StaticDataMemberSpecialization
|
|
};
|
|
switch ((VarKind)Record.readInt()) {
|
|
case VarNotTemplate:
|
|
// Only true variables (not parameters or implicit parameters) can be
|
|
// merged; the other kinds are not really redeclarable at all.
|
|
if (!isa<ParmVarDecl>(VD) && !isa<ImplicitParamDecl>(VD) &&
|
|
!isa<VarTemplateSpecializationDecl>(VD))
|
|
mergeRedeclarable(VD, Redecl);
|
|
break;
|
|
case VarTemplate:
|
|
// Merged when we merge the template.
|
|
VD->setDescribedVarTemplate(ReadDeclAs<VarTemplateDecl>());
|
|
break;
|
|
case StaticDataMemberSpecialization: { // HasMemberSpecializationInfo.
|
|
VarDecl *Tmpl = ReadDeclAs<VarDecl>();
|
|
TemplateSpecializationKind TSK =
|
|
(TemplateSpecializationKind)Record.readInt();
|
|
SourceLocation POI = ReadSourceLocation();
|
|
Reader.getContext().setInstantiatedFromStaticDataMember(VD, Tmpl, TSK,POI);
|
|
mergeRedeclarable(VD, Redecl);
|
|
break;
|
|
}
|
|
}
|
|
|
|
return Redecl;
|
|
}
|
|
|
|
void ASTDeclReader::VisitImplicitParamDecl(ImplicitParamDecl *PD) {
|
|
VisitVarDecl(PD);
|
|
}
|
|
|
|
void ASTDeclReader::VisitParmVarDecl(ParmVarDecl *PD) {
|
|
VisitVarDecl(PD);
|
|
unsigned isObjCMethodParam = Record.readInt();
|
|
unsigned scopeDepth = Record.readInt();
|
|
unsigned scopeIndex = Record.readInt();
|
|
unsigned declQualifier = Record.readInt();
|
|
if (isObjCMethodParam) {
|
|
assert(scopeDepth == 0);
|
|
PD->setObjCMethodScopeInfo(scopeIndex);
|
|
PD->ParmVarDeclBits.ScopeDepthOrObjCQuals = declQualifier;
|
|
} else {
|
|
PD->setScopeInfo(scopeDepth, scopeIndex);
|
|
}
|
|
PD->ParmVarDeclBits.IsKNRPromoted = Record.readInt();
|
|
PD->ParmVarDeclBits.HasInheritedDefaultArg = Record.readInt();
|
|
if (Record.readInt()) // hasUninstantiatedDefaultArg.
|
|
PD->setUninstantiatedDefaultArg(Record.readExpr());
|
|
|
|
// FIXME: If this is a redeclaration of a function from another module, handle
|
|
// inheritance of default arguments.
|
|
}
|
|
|
|
void ASTDeclReader::VisitDecompositionDecl(DecompositionDecl *DD) {
|
|
VisitVarDecl(DD);
|
|
BindingDecl **BDs = DD->getTrailingObjects<BindingDecl*>();
|
|
for (unsigned I = 0; I != DD->NumBindings; ++I)
|
|
BDs[I] = ReadDeclAs<BindingDecl>();
|
|
}
|
|
|
|
void ASTDeclReader::VisitBindingDecl(BindingDecl *BD) {
|
|
VisitValueDecl(BD);
|
|
BD->Binding = Record.readExpr();
|
|
}
|
|
|
|
void ASTDeclReader::VisitFileScopeAsmDecl(FileScopeAsmDecl *AD) {
|
|
VisitDecl(AD);
|
|
AD->setAsmString(cast<StringLiteral>(Record.readExpr()));
|
|
AD->setRParenLoc(ReadSourceLocation());
|
|
}
|
|
|
|
void ASTDeclReader::VisitBlockDecl(BlockDecl *BD) {
|
|
VisitDecl(BD);
|
|
BD->setBody(cast_or_null<CompoundStmt>(Record.readStmt()));
|
|
BD->setSignatureAsWritten(GetTypeSourceInfo());
|
|
unsigned NumParams = Record.readInt();
|
|
SmallVector<ParmVarDecl *, 16> Params;
|
|
Params.reserve(NumParams);
|
|
for (unsigned I = 0; I != NumParams; ++I)
|
|
Params.push_back(ReadDeclAs<ParmVarDecl>());
|
|
BD->setParams(Params);
|
|
|
|
BD->setIsVariadic(Record.readInt());
|
|
BD->setBlockMissingReturnType(Record.readInt());
|
|
BD->setIsConversionFromLambda(Record.readInt());
|
|
|
|
bool capturesCXXThis = Record.readInt();
|
|
unsigned numCaptures = Record.readInt();
|
|
SmallVector<BlockDecl::Capture, 16> captures;
|
|
captures.reserve(numCaptures);
|
|
for (unsigned i = 0; i != numCaptures; ++i) {
|
|
VarDecl *decl = ReadDeclAs<VarDecl>();
|
|
unsigned flags = Record.readInt();
|
|
bool byRef = (flags & 1);
|
|
bool nested = (flags & 2);
|
|
Expr *copyExpr = ((flags & 4) ? Record.readExpr() : nullptr);
|
|
|
|
captures.push_back(BlockDecl::Capture(decl, byRef, nested, copyExpr));
|
|
}
|
|
BD->setCaptures(Reader.getContext(), captures, capturesCXXThis);
|
|
}
|
|
|
|
void ASTDeclReader::VisitCapturedDecl(CapturedDecl *CD) {
|
|
VisitDecl(CD);
|
|
unsigned ContextParamPos = Record.readInt();
|
|
CD->setNothrow(Record.readInt() != 0);
|
|
// Body is set by VisitCapturedStmt.
|
|
for (unsigned I = 0; I < CD->NumParams; ++I) {
|
|
if (I != ContextParamPos)
|
|
CD->setParam(I, ReadDeclAs<ImplicitParamDecl>());
|
|
else
|
|
CD->setContextParam(I, ReadDeclAs<ImplicitParamDecl>());
|
|
}
|
|
}
|
|
|
|
void ASTDeclReader::VisitLinkageSpecDecl(LinkageSpecDecl *D) {
|
|
VisitDecl(D);
|
|
D->setLanguage((LinkageSpecDecl::LanguageIDs)Record.readInt());
|
|
D->setExternLoc(ReadSourceLocation());
|
|
D->setRBraceLoc(ReadSourceLocation());
|
|
}
|
|
|
|
void ASTDeclReader::VisitExportDecl(ExportDecl *D) {
|
|
VisitDecl(D);
|
|
D->RBraceLoc = ReadSourceLocation();
|
|
}
|
|
|
|
void ASTDeclReader::VisitLabelDecl(LabelDecl *D) {
|
|
VisitNamedDecl(D);
|
|
D->setLocStart(ReadSourceLocation());
|
|
}
|
|
|
|
void ASTDeclReader::VisitNamespaceDecl(NamespaceDecl *D) {
|
|
RedeclarableResult Redecl = VisitRedeclarable(D);
|
|
VisitNamedDecl(D);
|
|
D->setInline(Record.readInt());
|
|
D->LocStart = ReadSourceLocation();
|
|
D->RBraceLoc = ReadSourceLocation();
|
|
|
|
// Defer loading the anonymous namespace until we've finished merging
|
|
// this namespace; loading it might load a later declaration of the
|
|
// same namespace, and we have an invariant that older declarations
|
|
// get merged before newer ones try to merge.
|
|
GlobalDeclID AnonNamespace = 0;
|
|
if (Redecl.getFirstID() == ThisDeclID) {
|
|
AnonNamespace = ReadDeclID();
|
|
} else {
|
|
// Link this namespace back to the first declaration, which has already
|
|
// been deserialized.
|
|
D->AnonOrFirstNamespaceAndInline.setPointer(D->getFirstDecl());
|
|
}
|
|
|
|
mergeRedeclarable(D, Redecl);
|
|
|
|
if (AnonNamespace) {
|
|
// Each module has its own anonymous namespace, which is disjoint from
|
|
// any other module's anonymous namespaces, so don't attach the anonymous
|
|
// namespace at all.
|
|
NamespaceDecl *Anon = cast<NamespaceDecl>(Reader.GetDecl(AnonNamespace));
|
|
if (!Record.isModule())
|
|
D->setAnonymousNamespace(Anon);
|
|
}
|
|
}
|
|
|
|
void ASTDeclReader::VisitNamespaceAliasDecl(NamespaceAliasDecl *D) {
|
|
RedeclarableResult Redecl = VisitRedeclarable(D);
|
|
VisitNamedDecl(D);
|
|
D->NamespaceLoc = ReadSourceLocation();
|
|
D->IdentLoc = ReadSourceLocation();
|
|
D->QualifierLoc = Record.readNestedNameSpecifierLoc();
|
|
D->Namespace = ReadDeclAs<NamedDecl>();
|
|
mergeRedeclarable(D, Redecl);
|
|
}
|
|
|
|
void ASTDeclReader::VisitUsingDecl(UsingDecl *D) {
|
|
VisitNamedDecl(D);
|
|
D->setUsingLoc(ReadSourceLocation());
|
|
D->QualifierLoc = Record.readNestedNameSpecifierLoc();
|
|
ReadDeclarationNameLoc(D->DNLoc, D->getDeclName());
|
|
D->FirstUsingShadow.setPointer(ReadDeclAs<UsingShadowDecl>());
|
|
D->setTypename(Record.readInt());
|
|
if (NamedDecl *Pattern = ReadDeclAs<NamedDecl>())
|
|
Reader.getContext().setInstantiatedFromUsingDecl(D, Pattern);
|
|
mergeMergeable(D);
|
|
}
|
|
|
|
void ASTDeclReader::VisitUsingPackDecl(UsingPackDecl *D) {
|
|
VisitNamedDecl(D);
|
|
D->InstantiatedFrom = ReadDeclAs<NamedDecl>();
|
|
NamedDecl **Expansions = D->getTrailingObjects<NamedDecl*>();
|
|
for (unsigned I = 0; I != D->NumExpansions; ++I)
|
|
Expansions[I] = ReadDeclAs<NamedDecl>();
|
|
mergeMergeable(D);
|
|
}
|
|
|
|
void ASTDeclReader::VisitUsingShadowDecl(UsingShadowDecl *D) {
|
|
RedeclarableResult Redecl = VisitRedeclarable(D);
|
|
VisitNamedDecl(D);
|
|
D->Underlying = ReadDeclAs<NamedDecl>();
|
|
D->IdentifierNamespace = Record.readInt();
|
|
D->UsingOrNextShadow = ReadDeclAs<NamedDecl>();
|
|
UsingShadowDecl *Pattern = ReadDeclAs<UsingShadowDecl>();
|
|
if (Pattern)
|
|
Reader.getContext().setInstantiatedFromUsingShadowDecl(D, Pattern);
|
|
mergeRedeclarable(D, Redecl);
|
|
}
|
|
|
|
void ASTDeclReader::VisitConstructorUsingShadowDecl(
|
|
ConstructorUsingShadowDecl *D) {
|
|
VisitUsingShadowDecl(D);
|
|
D->NominatedBaseClassShadowDecl = ReadDeclAs<ConstructorUsingShadowDecl>();
|
|
D->ConstructedBaseClassShadowDecl = ReadDeclAs<ConstructorUsingShadowDecl>();
|
|
D->IsVirtual = Record.readInt();
|
|
}
|
|
|
|
void ASTDeclReader::VisitUsingDirectiveDecl(UsingDirectiveDecl *D) {
|
|
VisitNamedDecl(D);
|
|
D->UsingLoc = ReadSourceLocation();
|
|
D->NamespaceLoc = ReadSourceLocation();
|
|
D->QualifierLoc = Record.readNestedNameSpecifierLoc();
|
|
D->NominatedNamespace = ReadDeclAs<NamedDecl>();
|
|
D->CommonAncestor = ReadDeclAs<DeclContext>();
|
|
}
|
|
|
|
void ASTDeclReader::VisitUnresolvedUsingValueDecl(UnresolvedUsingValueDecl *D) {
|
|
VisitValueDecl(D);
|
|
D->setUsingLoc(ReadSourceLocation());
|
|
D->QualifierLoc = Record.readNestedNameSpecifierLoc();
|
|
ReadDeclarationNameLoc(D->DNLoc, D->getDeclName());
|
|
D->EllipsisLoc = ReadSourceLocation();
|
|
mergeMergeable(D);
|
|
}
|
|
|
|
void ASTDeclReader::VisitUnresolvedUsingTypenameDecl(
|
|
UnresolvedUsingTypenameDecl *D) {
|
|
VisitTypeDecl(D);
|
|
D->TypenameLocation = ReadSourceLocation();
|
|
D->QualifierLoc = Record.readNestedNameSpecifierLoc();
|
|
D->EllipsisLoc = ReadSourceLocation();
|
|
mergeMergeable(D);
|
|
}
|
|
|
|
void ASTDeclReader::ReadCXXDefinitionData(
|
|
struct CXXRecordDecl::DefinitionData &Data, const CXXRecordDecl *D) {
|
|
// Note: the caller has deserialized the IsLambda bit already.
|
|
Data.UserDeclaredConstructor = Record.readInt();
|
|
Data.UserDeclaredSpecialMembers = Record.readInt();
|
|
Data.Aggregate = Record.readInt();
|
|
Data.PlainOldData = Record.readInt();
|
|
Data.Empty = Record.readInt();
|
|
Data.Polymorphic = Record.readInt();
|
|
Data.Abstract = Record.readInt();
|
|
Data.IsStandardLayout = Record.readInt();
|
|
Data.HasNoNonEmptyBases = Record.readInt();
|
|
Data.HasPrivateFields = Record.readInt();
|
|
Data.HasProtectedFields = Record.readInt();
|
|
Data.HasPublicFields = Record.readInt();
|
|
Data.HasMutableFields = Record.readInt();
|
|
Data.HasVariantMembers = Record.readInt();
|
|
Data.HasOnlyCMembers = Record.readInt();
|
|
Data.HasInClassInitializer = Record.readInt();
|
|
Data.HasUninitializedReferenceMember = Record.readInt();
|
|
Data.HasUninitializedFields = Record.readInt();
|
|
Data.HasInheritedConstructor = Record.readInt();
|
|
Data.HasInheritedAssignment = Record.readInt();
|
|
Data.NeedOverloadResolutionForCopyConstructor = Record.readInt();
|
|
Data.NeedOverloadResolutionForMoveConstructor = Record.readInt();
|
|
Data.NeedOverloadResolutionForMoveAssignment = Record.readInt();
|
|
Data.NeedOverloadResolutionForDestructor = Record.readInt();
|
|
Data.DefaultedCopyConstructorIsDeleted = Record.readInt();
|
|
Data.DefaultedMoveConstructorIsDeleted = Record.readInt();
|
|
Data.DefaultedMoveAssignmentIsDeleted = Record.readInt();
|
|
Data.DefaultedDestructorIsDeleted = Record.readInt();
|
|
Data.HasTrivialSpecialMembers = Record.readInt();
|
|
Data.DeclaredNonTrivialSpecialMembers = Record.readInt();
|
|
Data.HasIrrelevantDestructor = Record.readInt();
|
|
Data.HasConstexprNonCopyMoveConstructor = Record.readInt();
|
|
Data.HasDefaultedDefaultConstructor = Record.readInt();
|
|
Data.CanPassInRegisters = Record.readInt();
|
|
Data.DefaultedDefaultConstructorIsConstexpr = Record.readInt();
|
|
Data.HasConstexprDefaultConstructor = Record.readInt();
|
|
Data.HasNonLiteralTypeFieldsOrBases = Record.readInt();
|
|
Data.ComputedVisibleConversions = Record.readInt();
|
|
Data.UserProvidedDefaultConstructor = Record.readInt();
|
|
Data.DeclaredSpecialMembers = Record.readInt();
|
|
Data.ImplicitCopyConstructorCanHaveConstParamForVBase = Record.readInt();
|
|
Data.ImplicitCopyConstructorCanHaveConstParamForNonVBase = Record.readInt();
|
|
Data.ImplicitCopyAssignmentHasConstParam = Record.readInt();
|
|
Data.HasDeclaredCopyConstructorWithConstParam = Record.readInt();
|
|
Data.HasDeclaredCopyAssignmentWithConstParam = Record.readInt();
|
|
Data.ODRHash = Record.readInt();
|
|
Data.HasODRHash = true;
|
|
|
|
if (Record.readInt())
|
|
Reader.DefinitionSource[D] = Loc.F->Kind == ModuleKind::MK_MainFile;
|
|
|
|
Data.NumBases = Record.readInt();
|
|
if (Data.NumBases)
|
|
Data.Bases = ReadGlobalOffset();
|
|
Data.NumVBases = Record.readInt();
|
|
if (Data.NumVBases)
|
|
Data.VBases = ReadGlobalOffset();
|
|
|
|
Record.readUnresolvedSet(Data.Conversions);
|
|
Record.readUnresolvedSet(Data.VisibleConversions);
|
|
assert(Data.Definition && "Data.Definition should be already set!");
|
|
Data.FirstFriend = ReadDeclID();
|
|
|
|
if (Data.IsLambda) {
|
|
typedef LambdaCapture Capture;
|
|
CXXRecordDecl::LambdaDefinitionData &Lambda
|
|
= static_cast<CXXRecordDecl::LambdaDefinitionData &>(Data);
|
|
Lambda.Dependent = Record.readInt();
|
|
Lambda.IsGenericLambda = Record.readInt();
|
|
Lambda.CaptureDefault = Record.readInt();
|
|
Lambda.NumCaptures = Record.readInt();
|
|
Lambda.NumExplicitCaptures = Record.readInt();
|
|
Lambda.ManglingNumber = Record.readInt();
|
|
Lambda.ContextDecl = ReadDeclID();
|
|
Lambda.Captures = (Capture *)Reader.getContext().Allocate(
|
|
sizeof(Capture) * Lambda.NumCaptures);
|
|
Capture *ToCapture = Lambda.Captures;
|
|
Lambda.MethodTyInfo = GetTypeSourceInfo();
|
|
for (unsigned I = 0, N = Lambda.NumCaptures; I != N; ++I) {
|
|
SourceLocation Loc = ReadSourceLocation();
|
|
bool IsImplicit = Record.readInt();
|
|
LambdaCaptureKind Kind = static_cast<LambdaCaptureKind>(Record.readInt());
|
|
switch (Kind) {
|
|
case LCK_StarThis:
|
|
case LCK_This:
|
|
case LCK_VLAType:
|
|
*ToCapture++ = Capture(Loc, IsImplicit, Kind, nullptr,SourceLocation());
|
|
break;
|
|
case LCK_ByCopy:
|
|
case LCK_ByRef:
|
|
VarDecl *Var = ReadDeclAs<VarDecl>();
|
|
SourceLocation EllipsisLoc = ReadSourceLocation();
|
|
*ToCapture++ = Capture(Loc, IsImplicit, Kind, Var, EllipsisLoc);
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
void ASTDeclReader::MergeDefinitionData(
|
|
CXXRecordDecl *D, struct CXXRecordDecl::DefinitionData &&MergeDD) {
|
|
assert(D->DefinitionData &&
|
|
"merging class definition into non-definition");
|
|
auto &DD = *D->DefinitionData;
|
|
|
|
if (DD.Definition != MergeDD.Definition) {
|
|
// Track that we merged the definitions.
|
|
Reader.MergedDeclContexts.insert(std::make_pair(MergeDD.Definition,
|
|
DD.Definition));
|
|
Reader.PendingDefinitions.erase(MergeDD.Definition);
|
|
MergeDD.Definition->IsCompleteDefinition = false;
|
|
Reader.mergeDefinitionVisibility(DD.Definition, MergeDD.Definition);
|
|
assert(Reader.Lookups.find(MergeDD.Definition) == Reader.Lookups.end() &&
|
|
"already loaded pending lookups for merged definition");
|
|
}
|
|
|
|
auto PFDI = Reader.PendingFakeDefinitionData.find(&DD);
|
|
if (PFDI != Reader.PendingFakeDefinitionData.end() &&
|
|
PFDI->second == ASTReader::PendingFakeDefinitionKind::Fake) {
|
|
// We faked up this definition data because we found a class for which we'd
|
|
// not yet loaded the definition. Replace it with the real thing now.
|
|
assert(!DD.IsLambda && !MergeDD.IsLambda && "faked up lambda definition?");
|
|
PFDI->second = ASTReader::PendingFakeDefinitionKind::FakeLoaded;
|
|
|
|
// Don't change which declaration is the definition; that is required
|
|
// to be invariant once we select it.
|
|
auto *Def = DD.Definition;
|
|
DD = std::move(MergeDD);
|
|
DD.Definition = Def;
|
|
return;
|
|
}
|
|
|
|
// FIXME: Move this out into a .def file?
|
|
bool DetectedOdrViolation = false;
|
|
#define OR_FIELD(Field) DD.Field |= MergeDD.Field;
|
|
#define MATCH_FIELD(Field) \
|
|
DetectedOdrViolation |= DD.Field != MergeDD.Field; \
|
|
OR_FIELD(Field)
|
|
MATCH_FIELD(UserDeclaredConstructor)
|
|
MATCH_FIELD(UserDeclaredSpecialMembers)
|
|
MATCH_FIELD(Aggregate)
|
|
MATCH_FIELD(PlainOldData)
|
|
MATCH_FIELD(Empty)
|
|
MATCH_FIELD(Polymorphic)
|
|
MATCH_FIELD(Abstract)
|
|
MATCH_FIELD(IsStandardLayout)
|
|
MATCH_FIELD(HasNoNonEmptyBases)
|
|
MATCH_FIELD(HasPrivateFields)
|
|
MATCH_FIELD(HasProtectedFields)
|
|
MATCH_FIELD(HasPublicFields)
|
|
MATCH_FIELD(HasMutableFields)
|
|
MATCH_FIELD(HasVariantMembers)
|
|
MATCH_FIELD(HasOnlyCMembers)
|
|
MATCH_FIELD(HasInClassInitializer)
|
|
MATCH_FIELD(HasUninitializedReferenceMember)
|
|
MATCH_FIELD(HasUninitializedFields)
|
|
MATCH_FIELD(HasInheritedConstructor)
|
|
MATCH_FIELD(HasInheritedAssignment)
|
|
MATCH_FIELD(NeedOverloadResolutionForCopyConstructor)
|
|
MATCH_FIELD(NeedOverloadResolutionForMoveConstructor)
|
|
MATCH_FIELD(NeedOverloadResolutionForMoveAssignment)
|
|
MATCH_FIELD(NeedOverloadResolutionForDestructor)
|
|
MATCH_FIELD(DefaultedCopyConstructorIsDeleted)
|
|
MATCH_FIELD(DefaultedMoveConstructorIsDeleted)
|
|
MATCH_FIELD(DefaultedMoveAssignmentIsDeleted)
|
|
MATCH_FIELD(DefaultedDestructorIsDeleted)
|
|
OR_FIELD(HasTrivialSpecialMembers)
|
|
OR_FIELD(DeclaredNonTrivialSpecialMembers)
|
|
MATCH_FIELD(HasIrrelevantDestructor)
|
|
OR_FIELD(HasConstexprNonCopyMoveConstructor)
|
|
OR_FIELD(HasDefaultedDefaultConstructor)
|
|
MATCH_FIELD(CanPassInRegisters)
|
|
MATCH_FIELD(DefaultedDefaultConstructorIsConstexpr)
|
|
OR_FIELD(HasConstexprDefaultConstructor)
|
|
MATCH_FIELD(HasNonLiteralTypeFieldsOrBases)
|
|
// ComputedVisibleConversions is handled below.
|
|
MATCH_FIELD(UserProvidedDefaultConstructor)
|
|
OR_FIELD(DeclaredSpecialMembers)
|
|
MATCH_FIELD(ImplicitCopyConstructorCanHaveConstParamForVBase)
|
|
MATCH_FIELD(ImplicitCopyConstructorCanHaveConstParamForNonVBase)
|
|
MATCH_FIELD(ImplicitCopyAssignmentHasConstParam)
|
|
OR_FIELD(HasDeclaredCopyConstructorWithConstParam)
|
|
OR_FIELD(HasDeclaredCopyAssignmentWithConstParam)
|
|
MATCH_FIELD(IsLambda)
|
|
#undef OR_FIELD
|
|
#undef MATCH_FIELD
|
|
|
|
if (DD.NumBases != MergeDD.NumBases || DD.NumVBases != MergeDD.NumVBases)
|
|
DetectedOdrViolation = true;
|
|
// FIXME: Issue a diagnostic if the base classes don't match when we come
|
|
// to lazily load them.
|
|
|
|
// FIXME: Issue a diagnostic if the list of conversion functions doesn't
|
|
// match when we come to lazily load them.
|
|
if (MergeDD.ComputedVisibleConversions && !DD.ComputedVisibleConversions) {
|
|
DD.VisibleConversions = std::move(MergeDD.VisibleConversions);
|
|
DD.ComputedVisibleConversions = true;
|
|
}
|
|
|
|
// FIXME: Issue a diagnostic if FirstFriend doesn't match when we come to
|
|
// lazily load it.
|
|
|
|
if (DD.IsLambda) {
|
|
// FIXME: ODR-checking for merging lambdas (this happens, for instance,
|
|
// when they occur within the body of a function template specialization).
|
|
}
|
|
|
|
if (D->getODRHash() != MergeDD.ODRHash) {
|
|
DetectedOdrViolation = true;
|
|
}
|
|
|
|
if (DetectedOdrViolation)
|
|
Reader.PendingOdrMergeFailures[DD.Definition].push_back(
|
|
{MergeDD.Definition, &MergeDD});
|
|
}
|
|
|
|
void ASTDeclReader::ReadCXXRecordDefinition(CXXRecordDecl *D, bool Update) {
|
|
struct CXXRecordDecl::DefinitionData *DD;
|
|
ASTContext &C = Reader.getContext();
|
|
|
|
// Determine whether this is a lambda closure type, so that we can
|
|
// allocate the appropriate DefinitionData structure.
|
|
bool IsLambda = Record.readInt();
|
|
if (IsLambda)
|
|
DD = new (C) CXXRecordDecl::LambdaDefinitionData(D, nullptr, false, false,
|
|
LCD_None);
|
|
else
|
|
DD = new (C) struct CXXRecordDecl::DefinitionData(D);
|
|
|
|
ReadCXXDefinitionData(*DD, D);
|
|
|
|
// We might already have a definition for this record. This can happen either
|
|
// because we're reading an update record, or because we've already done some
|
|
// merging. Either way, just merge into it.
|
|
CXXRecordDecl *Canon = D->getCanonicalDecl();
|
|
if (Canon->DefinitionData) {
|
|
MergeDefinitionData(Canon, std::move(*DD));
|
|
D->DefinitionData = Canon->DefinitionData;
|
|
return;
|
|
}
|
|
|
|
// Mark this declaration as being a definition.
|
|
D->IsCompleteDefinition = true;
|
|
D->DefinitionData = DD;
|
|
|
|
// If this is not the first declaration or is an update record, we can have
|
|
// other redeclarations already. Make a note that we need to propagate the
|
|
// DefinitionData pointer onto them.
|
|
if (Update || Canon != D) {
|
|
Canon->DefinitionData = D->DefinitionData;
|
|
Reader.PendingDefinitions.insert(D);
|
|
}
|
|
}
|
|
|
|
ASTDeclReader::RedeclarableResult
|
|
ASTDeclReader::VisitCXXRecordDeclImpl(CXXRecordDecl *D) {
|
|
RedeclarableResult Redecl = VisitRecordDeclImpl(D);
|
|
|
|
ASTContext &C = Reader.getContext();
|
|
|
|
enum CXXRecKind {
|
|
CXXRecNotTemplate = 0, CXXRecTemplate, CXXRecMemberSpecialization
|
|
};
|
|
switch ((CXXRecKind)Record.readInt()) {
|
|
case CXXRecNotTemplate:
|
|
// Merged when we merge the folding set entry in the primary template.
|
|
if (!isa<ClassTemplateSpecializationDecl>(D))
|
|
mergeRedeclarable(D, Redecl);
|
|
break;
|
|
case CXXRecTemplate: {
|
|
// Merged when we merge the template.
|
|
ClassTemplateDecl *Template = ReadDeclAs<ClassTemplateDecl>();
|
|
D->TemplateOrInstantiation = Template;
|
|
if (!Template->getTemplatedDecl()) {
|
|
// We've not actually loaded the ClassTemplateDecl yet, because we're
|
|
// currently being loaded as its pattern. Rely on it to set up our
|
|
// TypeForDecl (see VisitClassTemplateDecl).
|
|
//
|
|
// Beware: we do not yet know our canonical declaration, and may still
|
|
// get merged once the surrounding class template has got off the ground.
|
|
TypeIDForTypeDecl = 0;
|
|
}
|
|
break;
|
|
}
|
|
case CXXRecMemberSpecialization: {
|
|
CXXRecordDecl *RD = ReadDeclAs<CXXRecordDecl>();
|
|
TemplateSpecializationKind TSK =
|
|
(TemplateSpecializationKind)Record.readInt();
|
|
SourceLocation POI = ReadSourceLocation();
|
|
MemberSpecializationInfo *MSI = new (C) MemberSpecializationInfo(RD, TSK);
|
|
MSI->setPointOfInstantiation(POI);
|
|
D->TemplateOrInstantiation = MSI;
|
|
mergeRedeclarable(D, Redecl);
|
|
break;
|
|
}
|
|
}
|
|
|
|
bool WasDefinition = Record.readInt();
|
|
if (WasDefinition)
|
|
ReadCXXRecordDefinition(D, /*Update*/false);
|
|
else
|
|
// Propagate DefinitionData pointer from the canonical declaration.
|
|
D->DefinitionData = D->getCanonicalDecl()->DefinitionData;
|
|
|
|
// Lazily load the key function to avoid deserializing every method so we can
|
|
// compute it.
|
|
if (WasDefinition) {
|
|
DeclID KeyFn = ReadDeclID();
|
|
if (KeyFn && D->IsCompleteDefinition)
|
|
// FIXME: This is wrong for the ARM ABI, where some other module may have
|
|
// made this function no longer be a key function. We need an update
|
|
// record or similar for that case.
|
|
C.KeyFunctions[D] = KeyFn;
|
|
}
|
|
|
|
return Redecl;
|
|
}
|
|
|
|
void ASTDeclReader::VisitCXXDeductionGuideDecl(CXXDeductionGuideDecl *D) {
|
|
VisitFunctionDecl(D);
|
|
D->IsCopyDeductionCandidate = Record.readInt();
|
|
}
|
|
|
|
void ASTDeclReader::VisitCXXMethodDecl(CXXMethodDecl *D) {
|
|
VisitFunctionDecl(D);
|
|
|
|
unsigned NumOverridenMethods = Record.readInt();
|
|
if (D->isCanonicalDecl()) {
|
|
while (NumOverridenMethods--) {
|
|
// Avoid invariant checking of CXXMethodDecl::addOverriddenMethod,
|
|
// MD may be initializing.
|
|
if (CXXMethodDecl *MD = ReadDeclAs<CXXMethodDecl>())
|
|
Reader.getContext().addOverriddenMethod(D, MD->getCanonicalDecl());
|
|
}
|
|
} else {
|
|
// We don't care about which declarations this used to override; we get
|
|
// the relevant information from the canonical declaration.
|
|
Record.skipInts(NumOverridenMethods);
|
|
}
|
|
}
|
|
|
|
void ASTDeclReader::VisitCXXConstructorDecl(CXXConstructorDecl *D) {
|
|
// We need the inherited constructor information to merge the declaration,
|
|
// so we have to read it before we call VisitCXXMethodDecl.
|
|
if (D->isInheritingConstructor()) {
|
|
auto *Shadow = ReadDeclAs<ConstructorUsingShadowDecl>();
|
|
auto *Ctor = ReadDeclAs<CXXConstructorDecl>();
|
|
*D->getTrailingObjects<InheritedConstructor>() =
|
|
InheritedConstructor(Shadow, Ctor);
|
|
}
|
|
|
|
VisitCXXMethodDecl(D);
|
|
}
|
|
|
|
void ASTDeclReader::VisitCXXDestructorDecl(CXXDestructorDecl *D) {
|
|
VisitCXXMethodDecl(D);
|
|
|
|
if (auto *OperatorDelete = ReadDeclAs<FunctionDecl>()) {
|
|
auto *Canon = cast<CXXDestructorDecl>(D->getCanonicalDecl());
|
|
auto *ThisArg = Record.readExpr();
|
|
// FIXME: Check consistency if we have an old and new operator delete.
|
|
if (!Canon->OperatorDelete) {
|
|
Canon->OperatorDelete = OperatorDelete;
|
|
Canon->OperatorDeleteThisArg = ThisArg;
|
|
}
|
|
}
|
|
}
|
|
|
|
void ASTDeclReader::VisitCXXConversionDecl(CXXConversionDecl *D) {
|
|
VisitCXXMethodDecl(D);
|
|
}
|
|
|
|
void ASTDeclReader::VisitImportDecl(ImportDecl *D) {
|
|
VisitDecl(D);
|
|
D->ImportedAndComplete.setPointer(readModule());
|
|
D->ImportedAndComplete.setInt(Record.readInt());
|
|
SourceLocation *StoredLocs = D->getTrailingObjects<SourceLocation>();
|
|
for (unsigned I = 0, N = Record.back(); I != N; ++I)
|
|
StoredLocs[I] = ReadSourceLocation();
|
|
Record.skipInts(1); // The number of stored source locations.
|
|
}
|
|
|
|
void ASTDeclReader::VisitAccessSpecDecl(AccessSpecDecl *D) {
|
|
VisitDecl(D);
|
|
D->setColonLoc(ReadSourceLocation());
|
|
}
|
|
|
|
void ASTDeclReader::VisitFriendDecl(FriendDecl *D) {
|
|
VisitDecl(D);
|
|
if (Record.readInt()) // hasFriendDecl
|
|
D->Friend = ReadDeclAs<NamedDecl>();
|
|
else
|
|
D->Friend = GetTypeSourceInfo();
|
|
for (unsigned i = 0; i != D->NumTPLists; ++i)
|
|
D->getTrailingObjects<TemplateParameterList *>()[i] =
|
|
Record.readTemplateParameterList();
|
|
D->NextFriend = ReadDeclID();
|
|
D->UnsupportedFriend = (Record.readInt() != 0);
|
|
D->FriendLoc = ReadSourceLocation();
|
|
}
|
|
|
|
void ASTDeclReader::VisitFriendTemplateDecl(FriendTemplateDecl *D) {
|
|
VisitDecl(D);
|
|
unsigned NumParams = Record.readInt();
|
|
D->NumParams = NumParams;
|
|
D->Params = new TemplateParameterList*[NumParams];
|
|
for (unsigned i = 0; i != NumParams; ++i)
|
|
D->Params[i] = Record.readTemplateParameterList();
|
|
if (Record.readInt()) // HasFriendDecl
|
|
D->Friend = ReadDeclAs<NamedDecl>();
|
|
else
|
|
D->Friend = GetTypeSourceInfo();
|
|
D->FriendLoc = ReadSourceLocation();
|
|
}
|
|
|
|
DeclID ASTDeclReader::VisitTemplateDecl(TemplateDecl *D) {
|
|
VisitNamedDecl(D);
|
|
|
|
DeclID PatternID = ReadDeclID();
|
|
NamedDecl *TemplatedDecl = cast_or_null<NamedDecl>(Reader.GetDecl(PatternID));
|
|
TemplateParameterList *TemplateParams = Record.readTemplateParameterList();
|
|
// FIXME handle associated constraints
|
|
D->init(TemplatedDecl, TemplateParams);
|
|
|
|
return PatternID;
|
|
}
|
|
|
|
ASTDeclReader::RedeclarableResult
|
|
ASTDeclReader::VisitRedeclarableTemplateDecl(RedeclarableTemplateDecl *D) {
|
|
RedeclarableResult Redecl = VisitRedeclarable(D);
|
|
|
|
// Make sure we've allocated the Common pointer first. We do this before
|
|
// VisitTemplateDecl so that getCommonPtr() can be used during initialization.
|
|
RedeclarableTemplateDecl *CanonD = D->getCanonicalDecl();
|
|
if (!CanonD->Common) {
|
|
CanonD->Common = CanonD->newCommon(Reader.getContext());
|
|
Reader.PendingDefinitions.insert(CanonD);
|
|
}
|
|
D->Common = CanonD->Common;
|
|
|
|
// If this is the first declaration of the template, fill in the information
|
|
// for the 'common' pointer.
|
|
if (ThisDeclID == Redecl.getFirstID()) {
|
|
if (RedeclarableTemplateDecl *RTD
|
|
= ReadDeclAs<RedeclarableTemplateDecl>()) {
|
|
assert(RTD->getKind() == D->getKind() &&
|
|
"InstantiatedFromMemberTemplate kind mismatch");
|
|
D->setInstantiatedFromMemberTemplate(RTD);
|
|
if (Record.readInt())
|
|
D->setMemberSpecialization();
|
|
}
|
|
}
|
|
|
|
DeclID PatternID = VisitTemplateDecl(D);
|
|
D->IdentifierNamespace = Record.readInt();
|
|
|
|
mergeRedeclarable(D, Redecl, PatternID);
|
|
|
|
// If we merged the template with a prior declaration chain, merge the common
|
|
// pointer.
|
|
// FIXME: Actually merge here, don't just overwrite.
|
|
D->Common = D->getCanonicalDecl()->Common;
|
|
|
|
return Redecl;
|
|
}
|
|
|
|
void ASTDeclReader::VisitClassTemplateDecl(ClassTemplateDecl *D) {
|
|
RedeclarableResult Redecl = VisitRedeclarableTemplateDecl(D);
|
|
|
|
if (ThisDeclID == Redecl.getFirstID()) {
|
|
// This ClassTemplateDecl owns a CommonPtr; read it to keep track of all of
|
|
// the specializations.
|
|
SmallVector<serialization::DeclID, 32> SpecIDs;
|
|
ReadDeclIDList(SpecIDs);
|
|
ASTDeclReader::AddLazySpecializations(D, SpecIDs);
|
|
}
|
|
|
|
if (D->getTemplatedDecl()->TemplateOrInstantiation) {
|
|
// We were loaded before our templated declaration was. We've not set up
|
|
// its corresponding type yet (see VisitCXXRecordDeclImpl), so reconstruct
|
|
// it now.
|
|
Reader.getContext().getInjectedClassNameType(
|
|
D->getTemplatedDecl(), D->getInjectedClassNameSpecialization());
|
|
}
|
|
}
|
|
|
|
void ASTDeclReader::VisitBuiltinTemplateDecl(BuiltinTemplateDecl *D) {
|
|
llvm_unreachable("BuiltinTemplates are not serialized");
|
|
}
|
|
|
|
/// TODO: Unify with ClassTemplateDecl version?
|
|
/// May require unifying ClassTemplateDecl and
|
|
/// VarTemplateDecl beyond TemplateDecl...
|
|
void ASTDeclReader::VisitVarTemplateDecl(VarTemplateDecl *D) {
|
|
RedeclarableResult Redecl = VisitRedeclarableTemplateDecl(D);
|
|
|
|
if (ThisDeclID == Redecl.getFirstID()) {
|
|
// This VarTemplateDecl owns a CommonPtr; read it to keep track of all of
|
|
// the specializations.
|
|
SmallVector<serialization::DeclID, 32> SpecIDs;
|
|
ReadDeclIDList(SpecIDs);
|
|
ASTDeclReader::AddLazySpecializations(D, SpecIDs);
|
|
}
|
|
}
|
|
|
|
ASTDeclReader::RedeclarableResult
|
|
ASTDeclReader::VisitClassTemplateSpecializationDeclImpl(
|
|
ClassTemplateSpecializationDecl *D) {
|
|
RedeclarableResult Redecl = VisitCXXRecordDeclImpl(D);
|
|
|
|
ASTContext &C = Reader.getContext();
|
|
if (Decl *InstD = ReadDecl()) {
|
|
if (ClassTemplateDecl *CTD = dyn_cast<ClassTemplateDecl>(InstD)) {
|
|
D->SpecializedTemplate = CTD;
|
|
} else {
|
|
SmallVector<TemplateArgument, 8> TemplArgs;
|
|
Record.readTemplateArgumentList(TemplArgs);
|
|
TemplateArgumentList *ArgList
|
|
= TemplateArgumentList::CreateCopy(C, TemplArgs);
|
|
ClassTemplateSpecializationDecl::SpecializedPartialSpecialization *PS
|
|
= new (C) ClassTemplateSpecializationDecl::
|
|
SpecializedPartialSpecialization();
|
|
PS->PartialSpecialization
|
|
= cast<ClassTemplatePartialSpecializationDecl>(InstD);
|
|
PS->TemplateArgs = ArgList;
|
|
D->SpecializedTemplate = PS;
|
|
}
|
|
}
|
|
|
|
SmallVector<TemplateArgument, 8> TemplArgs;
|
|
Record.readTemplateArgumentList(TemplArgs, /*Canonicalize*/ true);
|
|
D->TemplateArgs = TemplateArgumentList::CreateCopy(C, TemplArgs);
|
|
D->PointOfInstantiation = ReadSourceLocation();
|
|
D->SpecializationKind = (TemplateSpecializationKind)Record.readInt();
|
|
|
|
bool writtenAsCanonicalDecl = Record.readInt();
|
|
if (writtenAsCanonicalDecl) {
|
|
ClassTemplateDecl *CanonPattern = ReadDeclAs<ClassTemplateDecl>();
|
|
if (D->isCanonicalDecl()) { // It's kept in the folding set.
|
|
// Set this as, or find, the canonical declaration for this specialization
|
|
ClassTemplateSpecializationDecl *CanonSpec;
|
|
if (ClassTemplatePartialSpecializationDecl *Partial =
|
|
dyn_cast<ClassTemplatePartialSpecializationDecl>(D)) {
|
|
CanonSpec = CanonPattern->getCommonPtr()->PartialSpecializations
|
|
.GetOrInsertNode(Partial);
|
|
} else {
|
|
CanonSpec =
|
|
CanonPattern->getCommonPtr()->Specializations.GetOrInsertNode(D);
|
|
}
|
|
// If there was already a canonical specialization, merge into it.
|
|
if (CanonSpec != D) {
|
|
mergeRedeclarable<TagDecl>(D, CanonSpec, Redecl);
|
|
|
|
// This declaration might be a definition. Merge with any existing
|
|
// definition.
|
|
if (auto *DDD = D->DefinitionData) {
|
|
if (CanonSpec->DefinitionData)
|
|
MergeDefinitionData(CanonSpec, std::move(*DDD));
|
|
else
|
|
CanonSpec->DefinitionData = D->DefinitionData;
|
|
}
|
|
D->DefinitionData = CanonSpec->DefinitionData;
|
|
}
|
|
}
|
|
}
|
|
|
|
// Explicit info.
|
|
if (TypeSourceInfo *TyInfo = GetTypeSourceInfo()) {
|
|
ClassTemplateSpecializationDecl::ExplicitSpecializationInfo *ExplicitInfo
|
|
= new (C) ClassTemplateSpecializationDecl::ExplicitSpecializationInfo;
|
|
ExplicitInfo->TypeAsWritten = TyInfo;
|
|
ExplicitInfo->ExternLoc = ReadSourceLocation();
|
|
ExplicitInfo->TemplateKeywordLoc = ReadSourceLocation();
|
|
D->ExplicitInfo = ExplicitInfo;
|
|
}
|
|
|
|
return Redecl;
|
|
}
|
|
|
|
void ASTDeclReader::VisitClassTemplatePartialSpecializationDecl(
|
|
ClassTemplatePartialSpecializationDecl *D) {
|
|
RedeclarableResult Redecl = VisitClassTemplateSpecializationDeclImpl(D);
|
|
|
|
D->TemplateParams = Record.readTemplateParameterList();
|
|
D->ArgsAsWritten = Record.readASTTemplateArgumentListInfo();
|
|
|
|
// These are read/set from/to the first declaration.
|
|
if (ThisDeclID == Redecl.getFirstID()) {
|
|
D->InstantiatedFromMember.setPointer(
|
|
ReadDeclAs<ClassTemplatePartialSpecializationDecl>());
|
|
D->InstantiatedFromMember.setInt(Record.readInt());
|
|
}
|
|
}
|
|
|
|
void ASTDeclReader::VisitClassScopeFunctionSpecializationDecl(
|
|
ClassScopeFunctionSpecializationDecl *D) {
|
|
VisitDecl(D);
|
|
D->Specialization = ReadDeclAs<CXXMethodDecl>();
|
|
}
|
|
|
|
void ASTDeclReader::VisitFunctionTemplateDecl(FunctionTemplateDecl *D) {
|
|
RedeclarableResult Redecl = VisitRedeclarableTemplateDecl(D);
|
|
|
|
if (ThisDeclID == Redecl.getFirstID()) {
|
|
// This FunctionTemplateDecl owns a CommonPtr; read it.
|
|
SmallVector<serialization::DeclID, 32> SpecIDs;
|
|
ReadDeclIDList(SpecIDs);
|
|
ASTDeclReader::AddLazySpecializations(D, SpecIDs);
|
|
}
|
|
}
|
|
|
|
/// TODO: Unify with ClassTemplateSpecializationDecl version?
|
|
/// May require unifying ClassTemplate(Partial)SpecializationDecl and
|
|
/// VarTemplate(Partial)SpecializationDecl with a new data
|
|
/// structure Template(Partial)SpecializationDecl, and
|
|
/// using Template(Partial)SpecializationDecl as input type.
|
|
ASTDeclReader::RedeclarableResult
|
|
ASTDeclReader::VisitVarTemplateSpecializationDeclImpl(
|
|
VarTemplateSpecializationDecl *D) {
|
|
RedeclarableResult Redecl = VisitVarDeclImpl(D);
|
|
|
|
ASTContext &C = Reader.getContext();
|
|
if (Decl *InstD = ReadDecl()) {
|
|
if (VarTemplateDecl *VTD = dyn_cast<VarTemplateDecl>(InstD)) {
|
|
D->SpecializedTemplate = VTD;
|
|
} else {
|
|
SmallVector<TemplateArgument, 8> TemplArgs;
|
|
Record.readTemplateArgumentList(TemplArgs);
|
|
TemplateArgumentList *ArgList = TemplateArgumentList::CreateCopy(
|
|
C, TemplArgs);
|
|
VarTemplateSpecializationDecl::SpecializedPartialSpecialization *PS =
|
|
new (C)
|
|
VarTemplateSpecializationDecl::SpecializedPartialSpecialization();
|
|
PS->PartialSpecialization =
|
|
cast<VarTemplatePartialSpecializationDecl>(InstD);
|
|
PS->TemplateArgs = ArgList;
|
|
D->SpecializedTemplate = PS;
|
|
}
|
|
}
|
|
|
|
// Explicit info.
|
|
if (TypeSourceInfo *TyInfo = GetTypeSourceInfo()) {
|
|
VarTemplateSpecializationDecl::ExplicitSpecializationInfo *ExplicitInfo =
|
|
new (C) VarTemplateSpecializationDecl::ExplicitSpecializationInfo;
|
|
ExplicitInfo->TypeAsWritten = TyInfo;
|
|
ExplicitInfo->ExternLoc = ReadSourceLocation();
|
|
ExplicitInfo->TemplateKeywordLoc = ReadSourceLocation();
|
|
D->ExplicitInfo = ExplicitInfo;
|
|
}
|
|
|
|
SmallVector<TemplateArgument, 8> TemplArgs;
|
|
Record.readTemplateArgumentList(TemplArgs, /*Canonicalize*/ true);
|
|
D->TemplateArgs = TemplateArgumentList::CreateCopy(C, TemplArgs);
|
|
D->PointOfInstantiation = ReadSourceLocation();
|
|
D->SpecializationKind = (TemplateSpecializationKind)Record.readInt();
|
|
D->IsCompleteDefinition = Record.readInt();
|
|
|
|
bool writtenAsCanonicalDecl = Record.readInt();
|
|
if (writtenAsCanonicalDecl) {
|
|
VarTemplateDecl *CanonPattern = ReadDeclAs<VarTemplateDecl>();
|
|
if (D->isCanonicalDecl()) { // It's kept in the folding set.
|
|
// FIXME: If it's already present, merge it.
|
|
if (VarTemplatePartialSpecializationDecl *Partial =
|
|
dyn_cast<VarTemplatePartialSpecializationDecl>(D)) {
|
|
CanonPattern->getCommonPtr()->PartialSpecializations
|
|
.GetOrInsertNode(Partial);
|
|
} else {
|
|
CanonPattern->getCommonPtr()->Specializations.GetOrInsertNode(D);
|
|
}
|
|
}
|
|
}
|
|
|
|
return Redecl;
|
|
}
|
|
|
|
/// TODO: Unify with ClassTemplatePartialSpecializationDecl version?
|
|
/// May require unifying ClassTemplate(Partial)SpecializationDecl and
|
|
/// VarTemplate(Partial)SpecializationDecl with a new data
|
|
/// structure Template(Partial)SpecializationDecl, and
|
|
/// using Template(Partial)SpecializationDecl as input type.
|
|
void ASTDeclReader::VisitVarTemplatePartialSpecializationDecl(
|
|
VarTemplatePartialSpecializationDecl *D) {
|
|
RedeclarableResult Redecl = VisitVarTemplateSpecializationDeclImpl(D);
|
|
|
|
D->TemplateParams = Record.readTemplateParameterList();
|
|
D->ArgsAsWritten = Record.readASTTemplateArgumentListInfo();
|
|
|
|
// These are read/set from/to the first declaration.
|
|
if (ThisDeclID == Redecl.getFirstID()) {
|
|
D->InstantiatedFromMember.setPointer(
|
|
ReadDeclAs<VarTemplatePartialSpecializationDecl>());
|
|
D->InstantiatedFromMember.setInt(Record.readInt());
|
|
}
|
|
}
|
|
|
|
void ASTDeclReader::VisitTemplateTypeParmDecl(TemplateTypeParmDecl *D) {
|
|
VisitTypeDecl(D);
|
|
|
|
D->setDeclaredWithTypename(Record.readInt());
|
|
|
|
if (Record.readInt())
|
|
D->setDefaultArgument(GetTypeSourceInfo());
|
|
}
|
|
|
|
void ASTDeclReader::VisitNonTypeTemplateParmDecl(NonTypeTemplateParmDecl *D) {
|
|
VisitDeclaratorDecl(D);
|
|
// TemplateParmPosition.
|
|
D->setDepth(Record.readInt());
|
|
D->setPosition(Record.readInt());
|
|
if (D->isExpandedParameterPack()) {
|
|
auto TypesAndInfos =
|
|
D->getTrailingObjects<std::pair<QualType, TypeSourceInfo *>>();
|
|
for (unsigned I = 0, N = D->getNumExpansionTypes(); I != N; ++I) {
|
|
new (&TypesAndInfos[I].first) QualType(Record.readType());
|
|
TypesAndInfos[I].second = GetTypeSourceInfo();
|
|
}
|
|
} else {
|
|
// Rest of NonTypeTemplateParmDecl.
|
|
D->ParameterPack = Record.readInt();
|
|
if (Record.readInt())
|
|
D->setDefaultArgument(Record.readExpr());
|
|
}
|
|
}
|
|
|
|
void ASTDeclReader::VisitTemplateTemplateParmDecl(TemplateTemplateParmDecl *D) {
|
|
VisitTemplateDecl(D);
|
|
// TemplateParmPosition.
|
|
D->setDepth(Record.readInt());
|
|
D->setPosition(Record.readInt());
|
|
if (D->isExpandedParameterPack()) {
|
|
TemplateParameterList **Data =
|
|
D->getTrailingObjects<TemplateParameterList *>();
|
|
for (unsigned I = 0, N = D->getNumExpansionTemplateParameters();
|
|
I != N; ++I)
|
|
Data[I] = Record.readTemplateParameterList();
|
|
} else {
|
|
// Rest of TemplateTemplateParmDecl.
|
|
D->ParameterPack = Record.readInt();
|
|
if (Record.readInt())
|
|
D->setDefaultArgument(Reader.getContext(),
|
|
Record.readTemplateArgumentLoc());
|
|
}
|
|
}
|
|
|
|
void ASTDeclReader::VisitTypeAliasTemplateDecl(TypeAliasTemplateDecl *D) {
|
|
VisitRedeclarableTemplateDecl(D);
|
|
}
|
|
|
|
void ASTDeclReader::VisitStaticAssertDecl(StaticAssertDecl *D) {
|
|
VisitDecl(D);
|
|
D->AssertExprAndFailed.setPointer(Record.readExpr());
|
|
D->AssertExprAndFailed.setInt(Record.readInt());
|
|
D->Message = cast_or_null<StringLiteral>(Record.readExpr());
|
|
D->RParenLoc = ReadSourceLocation();
|
|
}
|
|
|
|
void ASTDeclReader::VisitEmptyDecl(EmptyDecl *D) {
|
|
VisitDecl(D);
|
|
}
|
|
|
|
std::pair<uint64_t, uint64_t>
|
|
ASTDeclReader::VisitDeclContext(DeclContext *DC) {
|
|
uint64_t LexicalOffset = ReadLocalOffset();
|
|
uint64_t VisibleOffset = ReadLocalOffset();
|
|
return std::make_pair(LexicalOffset, VisibleOffset);
|
|
}
|
|
|
|
template <typename T>
|
|
ASTDeclReader::RedeclarableResult
|
|
ASTDeclReader::VisitRedeclarable(Redeclarable<T> *D) {
|
|
DeclID FirstDeclID = ReadDeclID();
|
|
Decl *MergeWith = nullptr;
|
|
|
|
bool IsKeyDecl = ThisDeclID == FirstDeclID;
|
|
bool IsFirstLocalDecl = false;
|
|
|
|
uint64_t RedeclOffset = 0;
|
|
|
|
// 0 indicates that this declaration was the only declaration of its entity,
|
|
// and is used for space optimization.
|
|
if (FirstDeclID == 0) {
|
|
FirstDeclID = ThisDeclID;
|
|
IsKeyDecl = true;
|
|
IsFirstLocalDecl = true;
|
|
} else if (unsigned N = Record.readInt()) {
|
|
// This declaration was the first local declaration, but may have imported
|
|
// other declarations.
|
|
IsKeyDecl = N == 1;
|
|
IsFirstLocalDecl = true;
|
|
|
|
// We have some declarations that must be before us in our redeclaration
|
|
// chain. Read them now, and remember that we ought to merge with one of
|
|
// them.
|
|
// FIXME: Provide a known merge target to the second and subsequent such
|
|
// declaration.
|
|
for (unsigned I = 0; I != N - 1; ++I)
|
|
MergeWith = ReadDecl();
|
|
|
|
RedeclOffset = ReadLocalOffset();
|
|
} else {
|
|
// This declaration was not the first local declaration. Read the first
|
|
// local declaration now, to trigger the import of other redeclarations.
|
|
(void)ReadDecl();
|
|
}
|
|
|
|
T *FirstDecl = cast_or_null<T>(Reader.GetDecl(FirstDeclID));
|
|
if (FirstDecl != D) {
|
|
// We delay loading of the redeclaration chain to avoid deeply nested calls.
|
|
// We temporarily set the first (canonical) declaration as the previous one
|
|
// which is the one that matters and mark the real previous DeclID to be
|
|
// loaded & attached later on.
|
|
D->RedeclLink = Redeclarable<T>::PreviousDeclLink(FirstDecl);
|
|
D->First = FirstDecl->getCanonicalDecl();
|
|
}
|
|
|
|
T *DAsT = static_cast<T*>(D);
|
|
|
|
// Note that we need to load local redeclarations of this decl and build a
|
|
// decl chain for them. This must happen *after* we perform the preloading
|
|
// above; this ensures that the redeclaration chain is built in the correct
|
|
// order.
|
|
if (IsFirstLocalDecl)
|
|
Reader.PendingDeclChains.push_back(std::make_pair(DAsT, RedeclOffset));
|
|
|
|
return RedeclarableResult(MergeWith, FirstDeclID, IsKeyDecl);
|
|
}
|
|
|
|
/// \brief Attempts to merge the given declaration (D) with another declaration
|
|
/// of the same entity.
|
|
template<typename T>
|
|
void ASTDeclReader::mergeRedeclarable(Redeclarable<T> *DBase,
|
|
RedeclarableResult &Redecl,
|
|
DeclID TemplatePatternID) {
|
|
// If modules are not available, there is no reason to perform this merge.
|
|
if (!Reader.getContext().getLangOpts().Modules)
|
|
return;
|
|
|
|
// If we're not the canonical declaration, we don't need to merge.
|
|
if (!DBase->isFirstDecl())
|
|
return;
|
|
|
|
T *D = static_cast<T*>(DBase);
|
|
|
|
if (auto *Existing = Redecl.getKnownMergeTarget())
|
|
// We already know of an existing declaration we should merge with.
|
|
mergeRedeclarable(D, cast<T>(Existing), Redecl, TemplatePatternID);
|
|
else if (FindExistingResult ExistingRes = findExisting(D))
|
|
if (T *Existing = ExistingRes)
|
|
mergeRedeclarable(D, Existing, Redecl, TemplatePatternID);
|
|
}
|
|
|
|
/// \brief "Cast" to type T, asserting if we don't have an implicit conversion.
|
|
/// We use this to put code in a template that will only be valid for certain
|
|
/// instantiations.
|
|
template<typename T> static T assert_cast(T t) { return t; }
|
|
template<typename T> static T assert_cast(...) {
|
|
llvm_unreachable("bad assert_cast");
|
|
}
|
|
|
|
/// \brief Merge together the pattern declarations from two template
|
|
/// declarations.
|
|
void ASTDeclReader::mergeTemplatePattern(RedeclarableTemplateDecl *D,
|
|
RedeclarableTemplateDecl *Existing,
|
|
DeclID DsID, bool IsKeyDecl) {
|
|
auto *DPattern = D->getTemplatedDecl();
|
|
auto *ExistingPattern = Existing->getTemplatedDecl();
|
|
RedeclarableResult Result(/*MergeWith*/ ExistingPattern,
|
|
DPattern->getCanonicalDecl()->getGlobalID(),
|
|
IsKeyDecl);
|
|
|
|
if (auto *DClass = dyn_cast<CXXRecordDecl>(DPattern)) {
|
|
// Merge with any existing definition.
|
|
// FIXME: This is duplicated in several places. Refactor.
|
|
auto *ExistingClass =
|
|
cast<CXXRecordDecl>(ExistingPattern)->getCanonicalDecl();
|
|
if (auto *DDD = DClass->DefinitionData) {
|
|
if (ExistingClass->DefinitionData) {
|
|
MergeDefinitionData(ExistingClass, std::move(*DDD));
|
|
} else {
|
|
ExistingClass->DefinitionData = DClass->DefinitionData;
|
|
// We may have skipped this before because we thought that DClass
|
|
// was the canonical declaration.
|
|
Reader.PendingDefinitions.insert(DClass);
|
|
}
|
|
}
|
|
DClass->DefinitionData = ExistingClass->DefinitionData;
|
|
|
|
return mergeRedeclarable(DClass, cast<TagDecl>(ExistingPattern),
|
|
Result);
|
|
}
|
|
if (auto *DFunction = dyn_cast<FunctionDecl>(DPattern))
|
|
return mergeRedeclarable(DFunction, cast<FunctionDecl>(ExistingPattern),
|
|
Result);
|
|
if (auto *DVar = dyn_cast<VarDecl>(DPattern))
|
|
return mergeRedeclarable(DVar, cast<VarDecl>(ExistingPattern), Result);
|
|
if (auto *DAlias = dyn_cast<TypeAliasDecl>(DPattern))
|
|
return mergeRedeclarable(DAlias, cast<TypedefNameDecl>(ExistingPattern),
|
|
Result);
|
|
llvm_unreachable("merged an unknown kind of redeclarable template");
|
|
}
|
|
|
|
/// \brief Attempts to merge the given declaration (D) with another declaration
|
|
/// of the same entity.
|
|
template<typename T>
|
|
void ASTDeclReader::mergeRedeclarable(Redeclarable<T> *DBase, T *Existing,
|
|
RedeclarableResult &Redecl,
|
|
DeclID TemplatePatternID) {
|
|
T *D = static_cast<T*>(DBase);
|
|
T *ExistingCanon = Existing->getCanonicalDecl();
|
|
T *DCanon = D->getCanonicalDecl();
|
|
if (ExistingCanon != DCanon) {
|
|
assert(DCanon->getGlobalID() == Redecl.getFirstID() &&
|
|
"already merged this declaration");
|
|
|
|
// Have our redeclaration link point back at the canonical declaration
|
|
// of the existing declaration, so that this declaration has the
|
|
// appropriate canonical declaration.
|
|
D->RedeclLink = Redeclarable<T>::PreviousDeclLink(ExistingCanon);
|
|
D->First = ExistingCanon;
|
|
ExistingCanon->Used |= D->Used;
|
|
D->Used = false;
|
|
|
|
// When we merge a namespace, update its pointer to the first namespace.
|
|
// We cannot have loaded any redeclarations of this declaration yet, so
|
|
// there's nothing else that needs to be updated.
|
|
if (auto *Namespace = dyn_cast<NamespaceDecl>(D))
|
|
Namespace->AnonOrFirstNamespaceAndInline.setPointer(
|
|
assert_cast<NamespaceDecl*>(ExistingCanon));
|
|
|
|
// When we merge a template, merge its pattern.
|
|
if (auto *DTemplate = dyn_cast<RedeclarableTemplateDecl>(D))
|
|
mergeTemplatePattern(
|
|
DTemplate, assert_cast<RedeclarableTemplateDecl*>(ExistingCanon),
|
|
TemplatePatternID, Redecl.isKeyDecl());
|
|
|
|
// If this declaration is a key declaration, make a note of that.
|
|
if (Redecl.isKeyDecl())
|
|
Reader.KeyDecls[ExistingCanon].push_back(Redecl.getFirstID());
|
|
}
|
|
}
|
|
|
|
/// \brief Attempts to merge the given declaration (D) with another declaration
|
|
/// of the same entity, for the case where the entity is not actually
|
|
/// redeclarable. This happens, for instance, when merging the fields of
|
|
/// identical class definitions from two different modules.
|
|
template<typename T>
|
|
void ASTDeclReader::mergeMergeable(Mergeable<T> *D) {
|
|
// If modules are not available, there is no reason to perform this merge.
|
|
if (!Reader.getContext().getLangOpts().Modules)
|
|
return;
|
|
|
|
// ODR-based merging is only performed in C++. In C, identically-named things
|
|
// in different translation units are not redeclarations (but may still have
|
|
// compatible types).
|
|
if (!Reader.getContext().getLangOpts().CPlusPlus)
|
|
return;
|
|
|
|
if (FindExistingResult ExistingRes = findExisting(static_cast<T*>(D)))
|
|
if (T *Existing = ExistingRes)
|
|
Reader.getContext().setPrimaryMergedDecl(static_cast<T *>(D),
|
|
Existing->getCanonicalDecl());
|
|
}
|
|
|
|
void ASTDeclReader::VisitOMPThreadPrivateDecl(OMPThreadPrivateDecl *D) {
|
|
VisitDecl(D);
|
|
unsigned NumVars = D->varlist_size();
|
|
SmallVector<Expr *, 16> Vars;
|
|
Vars.reserve(NumVars);
|
|
for (unsigned i = 0; i != NumVars; ++i) {
|
|
Vars.push_back(Record.readExpr());
|
|
}
|
|
D->setVars(Vars);
|
|
}
|
|
|
|
void ASTDeclReader::VisitOMPDeclareReductionDecl(OMPDeclareReductionDecl *D) {
|
|
VisitValueDecl(D);
|
|
D->setLocation(ReadSourceLocation());
|
|
D->setCombiner(Record.readExpr());
|
|
D->setInitializer(
|
|
Record.readExpr(),
|
|
static_cast<OMPDeclareReductionDecl::InitKind>(Record.readInt()));
|
|
D->PrevDeclInScope = ReadDeclID();
|
|
}
|
|
|
|
void ASTDeclReader::VisitOMPCapturedExprDecl(OMPCapturedExprDecl *D) {
|
|
VisitVarDecl(D);
|
|
}
|
|
|
|
//===----------------------------------------------------------------------===//
|
|
// Attribute Reading
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
/// \brief Reads attributes from the current stream position.
|
|
void ASTReader::ReadAttributes(ASTRecordReader &Record, AttrVec &Attrs) {
|
|
for (unsigned i = 0, e = Record.readInt(); i != e; ++i) {
|
|
Attr *New = nullptr;
|
|
attr::Kind Kind = (attr::Kind)Record.readInt();
|
|
SourceRange Range = Record.readSourceRange();
|
|
ASTContext &Context = getContext();
|
|
|
|
#include "clang/Serialization/AttrPCHRead.inc"
|
|
|
|
assert(New && "Unable to decode attribute?");
|
|
Attrs.push_back(New);
|
|
}
|
|
}
|
|
|
|
//===----------------------------------------------------------------------===//
|
|
// ASTReader Implementation
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
/// \brief Note that we have loaded the declaration with the given
|
|
/// Index.
|
|
///
|
|
/// This routine notes that this declaration has already been loaded,
|
|
/// so that future GetDecl calls will return this declaration rather
|
|
/// than trying to load a new declaration.
|
|
inline void ASTReader::LoadedDecl(unsigned Index, Decl *D) {
|
|
assert(!DeclsLoaded[Index] && "Decl loaded twice?");
|
|
DeclsLoaded[Index] = D;
|
|
}
|
|
|
|
|
|
/// \brief Determine whether the consumer will be interested in seeing
|
|
/// this declaration (via HandleTopLevelDecl).
|
|
///
|
|
/// This routine should return true for anything that might affect
|
|
/// code generation, e.g., inline function definitions, Objective-C
|
|
/// declarations with metadata, etc.
|
|
static bool isConsumerInterestedIn(ASTContext &Ctx, Decl *D, bool HasBody) {
|
|
// An ObjCMethodDecl is never considered as "interesting" because its
|
|
// implementation container always is.
|
|
|
|
// An ImportDecl or VarDecl imported from a module map module will get
|
|
// emitted when we import the relevant module.
|
|
if (isa<ImportDecl>(D) || isa<VarDecl>(D)) {
|
|
auto *M = D->getImportedOwningModule();
|
|
if (M && M->Kind == Module::ModuleMapModule &&
|
|
Ctx.DeclMustBeEmitted(D))
|
|
return false;
|
|
}
|
|
|
|
if (isa<FileScopeAsmDecl>(D) ||
|
|
isa<ObjCProtocolDecl>(D) ||
|
|
isa<ObjCImplDecl>(D) ||
|
|
isa<ImportDecl>(D) ||
|
|
isa<PragmaCommentDecl>(D) ||
|
|
isa<PragmaDetectMismatchDecl>(D))
|
|
return true;
|
|
if (isa<OMPThreadPrivateDecl>(D) || isa<OMPDeclareReductionDecl>(D))
|
|
return !D->getDeclContext()->isFunctionOrMethod();
|
|
if (VarDecl *Var = dyn_cast<VarDecl>(D))
|
|
return Var->isFileVarDecl() &&
|
|
Var->isThisDeclarationADefinition() == VarDecl::Definition;
|
|
if (FunctionDecl *Func = dyn_cast<FunctionDecl>(D))
|
|
return Func->doesThisDeclarationHaveABody() || HasBody;
|
|
|
|
if (auto *ES = D->getASTContext().getExternalSource())
|
|
if (ES->hasExternalDefinitions(D) == ExternalASTSource::EK_Never)
|
|
return true;
|
|
|
|
return false;
|
|
}
|
|
|
|
/// \brief Get the correct cursor and offset for loading a declaration.
|
|
ASTReader::RecordLocation
|
|
ASTReader::DeclCursorForID(DeclID ID, SourceLocation &Loc) {
|
|
GlobalDeclMapType::iterator I = GlobalDeclMap.find(ID);
|
|
assert(I != GlobalDeclMap.end() && "Corrupted global declaration map");
|
|
ModuleFile *M = I->second;
|
|
const DeclOffset &DOffs =
|
|
M->DeclOffsets[ID - M->BaseDeclID - NUM_PREDEF_DECL_IDS];
|
|
Loc = TranslateSourceLocation(*M, DOffs.getLocation());
|
|
return RecordLocation(M, DOffs.BitOffset);
|
|
}
|
|
|
|
ASTReader::RecordLocation ASTReader::getLocalBitOffset(uint64_t GlobalOffset) {
|
|
ContinuousRangeMap<uint64_t, ModuleFile*, 4>::iterator I
|
|
= GlobalBitOffsetsMap.find(GlobalOffset);
|
|
|
|
assert(I != GlobalBitOffsetsMap.end() && "Corrupted global bit offsets map");
|
|
return RecordLocation(I->second, GlobalOffset - I->second->GlobalBitOffset);
|
|
}
|
|
|
|
uint64_t ASTReader::getGlobalBitOffset(ModuleFile &M, uint32_t LocalOffset) {
|
|
return LocalOffset + M.GlobalBitOffset;
|
|
}
|
|
|
|
static bool isSameTemplateParameterList(const TemplateParameterList *X,
|
|
const TemplateParameterList *Y);
|
|
|
|
/// \brief Determine whether two template parameters are similar enough
|
|
/// that they may be used in declarations of the same template.
|
|
static bool isSameTemplateParameter(const NamedDecl *X,
|
|
const NamedDecl *Y) {
|
|
if (X->getKind() != Y->getKind())
|
|
return false;
|
|
|
|
if (const TemplateTypeParmDecl *TX = dyn_cast<TemplateTypeParmDecl>(X)) {
|
|
const TemplateTypeParmDecl *TY = cast<TemplateTypeParmDecl>(Y);
|
|
return TX->isParameterPack() == TY->isParameterPack();
|
|
}
|
|
|
|
if (const NonTypeTemplateParmDecl *TX = dyn_cast<NonTypeTemplateParmDecl>(X)) {
|
|
const NonTypeTemplateParmDecl *TY = cast<NonTypeTemplateParmDecl>(Y);
|
|
return TX->isParameterPack() == TY->isParameterPack() &&
|
|
TX->getASTContext().hasSameType(TX->getType(), TY->getType());
|
|
}
|
|
|
|
const TemplateTemplateParmDecl *TX = cast<TemplateTemplateParmDecl>(X);
|
|
const TemplateTemplateParmDecl *TY = cast<TemplateTemplateParmDecl>(Y);
|
|
return TX->isParameterPack() == TY->isParameterPack() &&
|
|
isSameTemplateParameterList(TX->getTemplateParameters(),
|
|
TY->getTemplateParameters());
|
|
}
|
|
|
|
static NamespaceDecl *getNamespace(const NestedNameSpecifier *X) {
|
|
if (auto *NS = X->getAsNamespace())
|
|
return NS;
|
|
if (auto *NAS = X->getAsNamespaceAlias())
|
|
return NAS->getNamespace();
|
|
return nullptr;
|
|
}
|
|
|
|
static bool isSameQualifier(const NestedNameSpecifier *X,
|
|
const NestedNameSpecifier *Y) {
|
|
if (auto *NSX = getNamespace(X)) {
|
|
auto *NSY = getNamespace(Y);
|
|
if (!NSY || NSX->getCanonicalDecl() != NSY->getCanonicalDecl())
|
|
return false;
|
|
} else if (X->getKind() != Y->getKind())
|
|
return false;
|
|
|
|
// FIXME: For namespaces and types, we're permitted to check that the entity
|
|
// is named via the same tokens. We should probably do so.
|
|
switch (X->getKind()) {
|
|
case NestedNameSpecifier::Identifier:
|
|
if (X->getAsIdentifier() != Y->getAsIdentifier())
|
|
return false;
|
|
break;
|
|
case NestedNameSpecifier::Namespace:
|
|
case NestedNameSpecifier::NamespaceAlias:
|
|
// We've already checked that we named the same namespace.
|
|
break;
|
|
case NestedNameSpecifier::TypeSpec:
|
|
case NestedNameSpecifier::TypeSpecWithTemplate:
|
|
if (X->getAsType()->getCanonicalTypeInternal() !=
|
|
Y->getAsType()->getCanonicalTypeInternal())
|
|
return false;
|
|
break;
|
|
case NestedNameSpecifier::Global:
|
|
case NestedNameSpecifier::Super:
|
|
return true;
|
|
}
|
|
|
|
// Recurse into earlier portion of NNS, if any.
|
|
auto *PX = X->getPrefix();
|
|
auto *PY = Y->getPrefix();
|
|
if (PX && PY)
|
|
return isSameQualifier(PX, PY);
|
|
return !PX && !PY;
|
|
}
|
|
|
|
/// \brief Determine whether two template parameter lists are similar enough
|
|
/// that they may be used in declarations of the same template.
|
|
static bool isSameTemplateParameterList(const TemplateParameterList *X,
|
|
const TemplateParameterList *Y) {
|
|
if (X->size() != Y->size())
|
|
return false;
|
|
|
|
for (unsigned I = 0, N = X->size(); I != N; ++I)
|
|
if (!isSameTemplateParameter(X->getParam(I), Y->getParam(I)))
|
|
return false;
|
|
|
|
return true;
|
|
}
|
|
|
|
/// Determine whether the attributes we can overload on are identical for A and
|
|
/// B. Will ignore any overloadable attrs represented in the type of A and B.
|
|
static bool hasSameOverloadableAttrs(const FunctionDecl *A,
|
|
const FunctionDecl *B) {
|
|
// Note that pass_object_size attributes are represented in the function's
|
|
// ExtParameterInfo, so we don't need to check them here.
|
|
|
|
SmallVector<const EnableIfAttr *, 4> AEnableIfs;
|
|
// Since this is an equality check, we can ignore that enable_if attrs show up
|
|
// in reverse order.
|
|
for (const auto *EIA : A->specific_attrs<EnableIfAttr>())
|
|
AEnableIfs.push_back(EIA);
|
|
|
|
SmallVector<const EnableIfAttr *, 4> BEnableIfs;
|
|
for (const auto *EIA : B->specific_attrs<EnableIfAttr>())
|
|
BEnableIfs.push_back(EIA);
|
|
|
|
// Two very common cases: either we have 0 enable_if attrs, or we have an
|
|
// unequal number of enable_if attrs.
|
|
if (AEnableIfs.empty() && BEnableIfs.empty())
|
|
return true;
|
|
|
|
if (AEnableIfs.size() != BEnableIfs.size())
|
|
return false;
|
|
|
|
llvm::FoldingSetNodeID Cand1ID, Cand2ID;
|
|
for (unsigned I = 0, E = AEnableIfs.size(); I != E; ++I) {
|
|
Cand1ID.clear();
|
|
Cand2ID.clear();
|
|
|
|
AEnableIfs[I]->getCond()->Profile(Cand1ID, A->getASTContext(), true);
|
|
BEnableIfs[I]->getCond()->Profile(Cand2ID, B->getASTContext(), true);
|
|
if (Cand1ID != Cand2ID)
|
|
return false;
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
/// \brief Determine whether the two declarations refer to the same entity.
|
|
static bool isSameEntity(NamedDecl *X, NamedDecl *Y) {
|
|
assert(X->getDeclName() == Y->getDeclName() && "Declaration name mismatch!");
|
|
|
|
if (X == Y)
|
|
return true;
|
|
|
|
// Must be in the same context.
|
|
if (!X->getDeclContext()->getRedeclContext()->Equals(
|
|
Y->getDeclContext()->getRedeclContext()))
|
|
return false;
|
|
|
|
// Two typedefs refer to the same entity if they have the same underlying
|
|
// type.
|
|
if (TypedefNameDecl *TypedefX = dyn_cast<TypedefNameDecl>(X))
|
|
if (TypedefNameDecl *TypedefY = dyn_cast<TypedefNameDecl>(Y))
|
|
return X->getASTContext().hasSameType(TypedefX->getUnderlyingType(),
|
|
TypedefY->getUnderlyingType());
|
|
|
|
// Must have the same kind.
|
|
if (X->getKind() != Y->getKind())
|
|
return false;
|
|
|
|
// Objective-C classes and protocols with the same name always match.
|
|
if (isa<ObjCInterfaceDecl>(X) || isa<ObjCProtocolDecl>(X))
|
|
return true;
|
|
|
|
if (isa<ClassTemplateSpecializationDecl>(X)) {
|
|
// No need to handle these here: we merge them when adding them to the
|
|
// template.
|
|
return false;
|
|
}
|
|
|
|
// Compatible tags match.
|
|
if (TagDecl *TagX = dyn_cast<TagDecl>(X)) {
|
|
TagDecl *TagY = cast<TagDecl>(Y);
|
|
return (TagX->getTagKind() == TagY->getTagKind()) ||
|
|
((TagX->getTagKind() == TTK_Struct || TagX->getTagKind() == TTK_Class ||
|
|
TagX->getTagKind() == TTK_Interface) &&
|
|
(TagY->getTagKind() == TTK_Struct || TagY->getTagKind() == TTK_Class ||
|
|
TagY->getTagKind() == TTK_Interface));
|
|
}
|
|
|
|
// Functions with the same type and linkage match.
|
|
// FIXME: This needs to cope with merging of prototyped/non-prototyped
|
|
// functions, etc.
|
|
if (FunctionDecl *FuncX = dyn_cast<FunctionDecl>(X)) {
|
|
FunctionDecl *FuncY = cast<FunctionDecl>(Y);
|
|
if (CXXConstructorDecl *CtorX = dyn_cast<CXXConstructorDecl>(X)) {
|
|
CXXConstructorDecl *CtorY = cast<CXXConstructorDecl>(Y);
|
|
if (CtorX->getInheritedConstructor() &&
|
|
!isSameEntity(CtorX->getInheritedConstructor().getConstructor(),
|
|
CtorY->getInheritedConstructor().getConstructor()))
|
|
return false;
|
|
}
|
|
|
|
if (FuncX->isMultiVersion() != FuncY->isMultiVersion())
|
|
return false;
|
|
|
|
// Multiversioned functions with different feature strings are represented
|
|
// as separate declarations.
|
|
if (FuncX->isMultiVersion()) {
|
|
const auto *TAX = FuncX->getAttr<TargetAttr>();
|
|
const auto *TAY = FuncY->getAttr<TargetAttr>();
|
|
assert(TAX && TAY && "Multiversion Function without target attribute");
|
|
|
|
if (TAX->getFeaturesStr() != TAY->getFeaturesStr())
|
|
return false;
|
|
}
|
|
|
|
ASTContext &C = FuncX->getASTContext();
|
|
if (!C.hasSameType(FuncX->getType(), FuncY->getType())) {
|
|
// We can get functions with different types on the redecl chain in C++17
|
|
// if they have differing exception specifications and at least one of
|
|
// the excpetion specs is unresolved.
|
|
// FIXME: Do we need to check for C++14 deduced return types here too?
|
|
auto *XFPT = FuncX->getType()->getAs<FunctionProtoType>();
|
|
auto *YFPT = FuncY->getType()->getAs<FunctionProtoType>();
|
|
if (C.getLangOpts().CPlusPlus17 && XFPT && YFPT &&
|
|
(isUnresolvedExceptionSpec(XFPT->getExceptionSpecType()) ||
|
|
isUnresolvedExceptionSpec(YFPT->getExceptionSpecType())) &&
|
|
C.hasSameFunctionTypeIgnoringExceptionSpec(FuncX->getType(),
|
|
FuncY->getType()))
|
|
return true;
|
|
return false;
|
|
}
|
|
return FuncX->getLinkageInternal() == FuncY->getLinkageInternal() &&
|
|
hasSameOverloadableAttrs(FuncX, FuncY);
|
|
}
|
|
|
|
// Variables with the same type and linkage match.
|
|
if (VarDecl *VarX = dyn_cast<VarDecl>(X)) {
|
|
VarDecl *VarY = cast<VarDecl>(Y);
|
|
if (VarX->getLinkageInternal() == VarY->getLinkageInternal()) {
|
|
ASTContext &C = VarX->getASTContext();
|
|
if (C.hasSameType(VarX->getType(), VarY->getType()))
|
|
return true;
|
|
|
|
// We can get decls with different types on the redecl chain. Eg.
|
|
// template <typename T> struct S { static T Var[]; }; // #1
|
|
// template <typename T> T S<T>::Var[sizeof(T)]; // #2
|
|
// Only? happens when completing an incomplete array type. In this case
|
|
// when comparing #1 and #2 we should go through their element type.
|
|
const ArrayType *VarXTy = C.getAsArrayType(VarX->getType());
|
|
const ArrayType *VarYTy = C.getAsArrayType(VarY->getType());
|
|
if (!VarXTy || !VarYTy)
|
|
return false;
|
|
if (VarXTy->isIncompleteArrayType() || VarYTy->isIncompleteArrayType())
|
|
return C.hasSameType(VarXTy->getElementType(), VarYTy->getElementType());
|
|
}
|
|
return false;
|
|
}
|
|
|
|
// Namespaces with the same name and inlinedness match.
|
|
if (NamespaceDecl *NamespaceX = dyn_cast<NamespaceDecl>(X)) {
|
|
NamespaceDecl *NamespaceY = cast<NamespaceDecl>(Y);
|
|
return NamespaceX->isInline() == NamespaceY->isInline();
|
|
}
|
|
|
|
// Identical template names and kinds match if their template parameter lists
|
|
// and patterns match.
|
|
if (TemplateDecl *TemplateX = dyn_cast<TemplateDecl>(X)) {
|
|
TemplateDecl *TemplateY = cast<TemplateDecl>(Y);
|
|
return isSameEntity(TemplateX->getTemplatedDecl(),
|
|
TemplateY->getTemplatedDecl()) &&
|
|
isSameTemplateParameterList(TemplateX->getTemplateParameters(),
|
|
TemplateY->getTemplateParameters());
|
|
}
|
|
|
|
// Fields with the same name and the same type match.
|
|
if (FieldDecl *FDX = dyn_cast<FieldDecl>(X)) {
|
|
FieldDecl *FDY = cast<FieldDecl>(Y);
|
|
// FIXME: Also check the bitwidth is odr-equivalent, if any.
|
|
return X->getASTContext().hasSameType(FDX->getType(), FDY->getType());
|
|
}
|
|
|
|
// Indirect fields with the same target field match.
|
|
if (auto *IFDX = dyn_cast<IndirectFieldDecl>(X)) {
|
|
auto *IFDY = cast<IndirectFieldDecl>(Y);
|
|
return IFDX->getAnonField()->getCanonicalDecl() ==
|
|
IFDY->getAnonField()->getCanonicalDecl();
|
|
}
|
|
|
|
// Enumerators with the same name match.
|
|
if (isa<EnumConstantDecl>(X))
|
|
// FIXME: Also check the value is odr-equivalent.
|
|
return true;
|
|
|
|
// Using shadow declarations with the same target match.
|
|
if (UsingShadowDecl *USX = dyn_cast<UsingShadowDecl>(X)) {
|
|
UsingShadowDecl *USY = cast<UsingShadowDecl>(Y);
|
|
return USX->getTargetDecl() == USY->getTargetDecl();
|
|
}
|
|
|
|
// Using declarations with the same qualifier match. (We already know that
|
|
// the name matches.)
|
|
if (auto *UX = dyn_cast<UsingDecl>(X)) {
|
|
auto *UY = cast<UsingDecl>(Y);
|
|
return isSameQualifier(UX->getQualifier(), UY->getQualifier()) &&
|
|
UX->hasTypename() == UY->hasTypename() &&
|
|
UX->isAccessDeclaration() == UY->isAccessDeclaration();
|
|
}
|
|
if (auto *UX = dyn_cast<UnresolvedUsingValueDecl>(X)) {
|
|
auto *UY = cast<UnresolvedUsingValueDecl>(Y);
|
|
return isSameQualifier(UX->getQualifier(), UY->getQualifier()) &&
|
|
UX->isAccessDeclaration() == UY->isAccessDeclaration();
|
|
}
|
|
if (auto *UX = dyn_cast<UnresolvedUsingTypenameDecl>(X))
|
|
return isSameQualifier(
|
|
UX->getQualifier(),
|
|
cast<UnresolvedUsingTypenameDecl>(Y)->getQualifier());
|
|
|
|
// Namespace alias definitions with the same target match.
|
|
if (auto *NAX = dyn_cast<NamespaceAliasDecl>(X)) {
|
|
auto *NAY = cast<NamespaceAliasDecl>(Y);
|
|
return NAX->getNamespace()->Equals(NAY->getNamespace());
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
/// Find the context in which we should search for previous declarations when
|
|
/// looking for declarations to merge.
|
|
DeclContext *ASTDeclReader::getPrimaryContextForMerging(ASTReader &Reader,
|
|
DeclContext *DC) {
|
|
if (NamespaceDecl *ND = dyn_cast<NamespaceDecl>(DC))
|
|
return ND->getOriginalNamespace();
|
|
|
|
if (CXXRecordDecl *RD = dyn_cast<CXXRecordDecl>(DC)) {
|
|
// Try to dig out the definition.
|
|
auto *DD = RD->DefinitionData;
|
|
if (!DD)
|
|
DD = RD->getCanonicalDecl()->DefinitionData;
|
|
|
|
// If there's no definition yet, then DC's definition is added by an update
|
|
// record, but we've not yet loaded that update record. In this case, we
|
|
// commit to DC being the canonical definition now, and will fix this when
|
|
// we load the update record.
|
|
if (!DD) {
|
|
DD = new (Reader.getContext()) struct CXXRecordDecl::DefinitionData(RD);
|
|
RD->IsCompleteDefinition = true;
|
|
RD->DefinitionData = DD;
|
|
RD->getCanonicalDecl()->DefinitionData = DD;
|
|
|
|
// Track that we did this horrible thing so that we can fix it later.
|
|
Reader.PendingFakeDefinitionData.insert(
|
|
std::make_pair(DD, ASTReader::PendingFakeDefinitionKind::Fake));
|
|
}
|
|
|
|
return DD->Definition;
|
|
}
|
|
|
|
if (EnumDecl *ED = dyn_cast<EnumDecl>(DC))
|
|
return ED->getASTContext().getLangOpts().CPlusPlus? ED->getDefinition()
|
|
: nullptr;
|
|
|
|
// We can see the TU here only if we have no Sema object. In that case,
|
|
// there's no TU scope to look in, so using the DC alone is sufficient.
|
|
if (auto *TU = dyn_cast<TranslationUnitDecl>(DC))
|
|
return TU;
|
|
|
|
return nullptr;
|
|
}
|
|
|
|
ASTDeclReader::FindExistingResult::~FindExistingResult() {
|
|
// Record that we had a typedef name for linkage whether or not we merge
|
|
// with that declaration.
|
|
if (TypedefNameForLinkage) {
|
|
DeclContext *DC = New->getDeclContext()->getRedeclContext();
|
|
Reader.ImportedTypedefNamesForLinkage.insert(
|
|
std::make_pair(std::make_pair(DC, TypedefNameForLinkage), New));
|
|
return;
|
|
}
|
|
|
|
if (!AddResult || Existing)
|
|
return;
|
|
|
|
DeclarationName Name = New->getDeclName();
|
|
DeclContext *DC = New->getDeclContext()->getRedeclContext();
|
|
if (needsAnonymousDeclarationNumber(New)) {
|
|
setAnonymousDeclForMerging(Reader, New->getLexicalDeclContext(),
|
|
AnonymousDeclNumber, New);
|
|
} else if (DC->isTranslationUnit() &&
|
|
!Reader.getContext().getLangOpts().CPlusPlus) {
|
|
if (Reader.getIdResolver().tryAddTopLevelDecl(New, Name))
|
|
Reader.PendingFakeLookupResults[Name.getAsIdentifierInfo()]
|
|
.push_back(New);
|
|
} else if (DeclContext *MergeDC = getPrimaryContextForMerging(Reader, DC)) {
|
|
// Add the declaration to its redeclaration context so later merging
|
|
// lookups will find it.
|
|
MergeDC->makeDeclVisibleInContextImpl(New, /*Internal*/true);
|
|
}
|
|
}
|
|
|
|
/// Find the declaration that should be merged into, given the declaration found
|
|
/// by name lookup. If we're merging an anonymous declaration within a typedef,
|
|
/// we need a matching typedef, and we merge with the type inside it.
|
|
static NamedDecl *getDeclForMerging(NamedDecl *Found,
|
|
bool IsTypedefNameForLinkage) {
|
|
if (!IsTypedefNameForLinkage)
|
|
return Found;
|
|
|
|
// If we found a typedef declaration that gives a name to some other
|
|
// declaration, then we want that inner declaration. Declarations from
|
|
// AST files are handled via ImportedTypedefNamesForLinkage.
|
|
if (Found->isFromASTFile())
|
|
return nullptr;
|
|
|
|
if (auto *TND = dyn_cast<TypedefNameDecl>(Found))
|
|
return TND->getAnonDeclWithTypedefName(/*AnyRedecl*/true);
|
|
|
|
return nullptr;
|
|
}
|
|
|
|
NamedDecl *ASTDeclReader::getAnonymousDeclForMerging(ASTReader &Reader,
|
|
DeclContext *DC,
|
|
unsigned Index) {
|
|
// If the lexical context has been merged, look into the now-canonical
|
|
// definition.
|
|
if (auto *Merged = Reader.MergedDeclContexts.lookup(DC))
|
|
DC = Merged;
|
|
|
|
// If we've seen this before, return the canonical declaration.
|
|
auto &Previous = Reader.AnonymousDeclarationsForMerging[DC];
|
|
if (Index < Previous.size() && Previous[Index])
|
|
return Previous[Index];
|
|
|
|
// If this is the first time, but we have parsed a declaration of the context,
|
|
// build the anonymous declaration list from the parsed declaration.
|
|
if (!cast<Decl>(DC)->isFromASTFile()) {
|
|
numberAnonymousDeclsWithin(DC, [&](NamedDecl *ND, unsigned Number) {
|
|
if (Previous.size() == Number)
|
|
Previous.push_back(cast<NamedDecl>(ND->getCanonicalDecl()));
|
|
else
|
|
Previous[Number] = cast<NamedDecl>(ND->getCanonicalDecl());
|
|
});
|
|
}
|
|
|
|
return Index < Previous.size() ? Previous[Index] : nullptr;
|
|
}
|
|
|
|
void ASTDeclReader::setAnonymousDeclForMerging(ASTReader &Reader,
|
|
DeclContext *DC, unsigned Index,
|
|
NamedDecl *D) {
|
|
if (auto *Merged = Reader.MergedDeclContexts.lookup(DC))
|
|
DC = Merged;
|
|
|
|
auto &Previous = Reader.AnonymousDeclarationsForMerging[DC];
|
|
if (Index >= Previous.size())
|
|
Previous.resize(Index + 1);
|
|
if (!Previous[Index])
|
|
Previous[Index] = D;
|
|
}
|
|
|
|
ASTDeclReader::FindExistingResult ASTDeclReader::findExisting(NamedDecl *D) {
|
|
DeclarationName Name = TypedefNameForLinkage ? TypedefNameForLinkage
|
|
: D->getDeclName();
|
|
|
|
if (!Name && !needsAnonymousDeclarationNumber(D)) {
|
|
// Don't bother trying to find unnamed declarations that are in
|
|
// unmergeable contexts.
|
|
FindExistingResult Result(Reader, D, /*Existing=*/nullptr,
|
|
AnonymousDeclNumber, TypedefNameForLinkage);
|
|
Result.suppress();
|
|
return Result;
|
|
}
|
|
|
|
DeclContext *DC = D->getDeclContext()->getRedeclContext();
|
|
if (TypedefNameForLinkage) {
|
|
auto It = Reader.ImportedTypedefNamesForLinkage.find(
|
|
std::make_pair(DC, TypedefNameForLinkage));
|
|
if (It != Reader.ImportedTypedefNamesForLinkage.end())
|
|
if (isSameEntity(It->second, D))
|
|
return FindExistingResult(Reader, D, It->second, AnonymousDeclNumber,
|
|
TypedefNameForLinkage);
|
|
// Go on to check in other places in case an existing typedef name
|
|
// was not imported.
|
|
}
|
|
|
|
if (needsAnonymousDeclarationNumber(D)) {
|
|
// This is an anonymous declaration that we may need to merge. Look it up
|
|
// in its context by number.
|
|
if (auto *Existing = getAnonymousDeclForMerging(
|
|
Reader, D->getLexicalDeclContext(), AnonymousDeclNumber))
|
|
if (isSameEntity(Existing, D))
|
|
return FindExistingResult(Reader, D, Existing, AnonymousDeclNumber,
|
|
TypedefNameForLinkage);
|
|
} else if (DC->isTranslationUnit() &&
|
|
!Reader.getContext().getLangOpts().CPlusPlus) {
|
|
IdentifierResolver &IdResolver = Reader.getIdResolver();
|
|
|
|
// Temporarily consider the identifier to be up-to-date. We don't want to
|
|
// cause additional lookups here.
|
|
class UpToDateIdentifierRAII {
|
|
IdentifierInfo *II;
|
|
bool WasOutToDate;
|
|
|
|
public:
|
|
explicit UpToDateIdentifierRAII(IdentifierInfo *II)
|
|
: II(II), WasOutToDate(false)
|
|
{
|
|
if (II) {
|
|
WasOutToDate = II->isOutOfDate();
|
|
if (WasOutToDate)
|
|
II->setOutOfDate(false);
|
|
}
|
|
}
|
|
|
|
~UpToDateIdentifierRAII() {
|
|
if (WasOutToDate)
|
|
II->setOutOfDate(true);
|
|
}
|
|
} UpToDate(Name.getAsIdentifierInfo());
|
|
|
|
for (IdentifierResolver::iterator I = IdResolver.begin(Name),
|
|
IEnd = IdResolver.end();
|
|
I != IEnd; ++I) {
|
|
if (NamedDecl *Existing = getDeclForMerging(*I, TypedefNameForLinkage))
|
|
if (isSameEntity(Existing, D))
|
|
return FindExistingResult(Reader, D, Existing, AnonymousDeclNumber,
|
|
TypedefNameForLinkage);
|
|
}
|
|
} else if (DeclContext *MergeDC = getPrimaryContextForMerging(Reader, DC)) {
|
|
DeclContext::lookup_result R = MergeDC->noload_lookup(Name);
|
|
for (DeclContext::lookup_iterator I = R.begin(), E = R.end(); I != E; ++I) {
|
|
if (NamedDecl *Existing = getDeclForMerging(*I, TypedefNameForLinkage))
|
|
if (isSameEntity(Existing, D))
|
|
return FindExistingResult(Reader, D, Existing, AnonymousDeclNumber,
|
|
TypedefNameForLinkage);
|
|
}
|
|
} else {
|
|
// Not in a mergeable context.
|
|
return FindExistingResult(Reader);
|
|
}
|
|
|
|
// If this declaration is from a merged context, make a note that we need to
|
|
// check that the canonical definition of that context contains the decl.
|
|
//
|
|
// FIXME: We should do something similar if we merge two definitions of the
|
|
// same template specialization into the same CXXRecordDecl.
|
|
auto MergedDCIt = Reader.MergedDeclContexts.find(D->getLexicalDeclContext());
|
|
if (MergedDCIt != Reader.MergedDeclContexts.end() &&
|
|
MergedDCIt->second == D->getDeclContext())
|
|
Reader.PendingOdrMergeChecks.push_back(D);
|
|
|
|
return FindExistingResult(Reader, D, /*Existing=*/nullptr,
|
|
AnonymousDeclNumber, TypedefNameForLinkage);
|
|
}
|
|
|
|
template<typename DeclT>
|
|
Decl *ASTDeclReader::getMostRecentDeclImpl(Redeclarable<DeclT> *D) {
|
|
return D->RedeclLink.getLatestNotUpdated();
|
|
}
|
|
Decl *ASTDeclReader::getMostRecentDeclImpl(...) {
|
|
llvm_unreachable("getMostRecentDecl on non-redeclarable declaration");
|
|
}
|
|
|
|
Decl *ASTDeclReader::getMostRecentDecl(Decl *D) {
|
|
assert(D);
|
|
|
|
switch (D->getKind()) {
|
|
#define ABSTRACT_DECL(TYPE)
|
|
#define DECL(TYPE, BASE) \
|
|
case Decl::TYPE: \
|
|
return getMostRecentDeclImpl(cast<TYPE##Decl>(D));
|
|
#include "clang/AST/DeclNodes.inc"
|
|
}
|
|
llvm_unreachable("unknown decl kind");
|
|
}
|
|
|
|
Decl *ASTReader::getMostRecentExistingDecl(Decl *D) {
|
|
return ASTDeclReader::getMostRecentDecl(D->getCanonicalDecl());
|
|
}
|
|
|
|
template<typename DeclT>
|
|
void ASTDeclReader::attachPreviousDeclImpl(ASTReader &Reader,
|
|
Redeclarable<DeclT> *D,
|
|
Decl *Previous, Decl *Canon) {
|
|
D->RedeclLink.setPrevious(cast<DeclT>(Previous));
|
|
D->First = cast<DeclT>(Previous)->First;
|
|
}
|
|
|
|
namespace clang {
|
|
template<>
|
|
void ASTDeclReader::attachPreviousDeclImpl(ASTReader &Reader,
|
|
Redeclarable<VarDecl> *D,
|
|
Decl *Previous, Decl *Canon) {
|
|
VarDecl *VD = static_cast<VarDecl*>(D);
|
|
VarDecl *PrevVD = cast<VarDecl>(Previous);
|
|
D->RedeclLink.setPrevious(PrevVD);
|
|
D->First = PrevVD->First;
|
|
|
|
// We should keep at most one definition on the chain.
|
|
// FIXME: Cache the definition once we've found it. Building a chain with
|
|
// N definitions currently takes O(N^2) time here.
|
|
if (VD->isThisDeclarationADefinition() == VarDecl::Definition) {
|
|
for (VarDecl *CurD = PrevVD; CurD; CurD = CurD->getPreviousDecl()) {
|
|
if (CurD->isThisDeclarationADefinition() == VarDecl::Definition) {
|
|
Reader.mergeDefinitionVisibility(CurD, VD);
|
|
VD->demoteThisDefinitionToDeclaration();
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
template<>
|
|
void ASTDeclReader::attachPreviousDeclImpl(ASTReader &Reader,
|
|
Redeclarable<FunctionDecl> *D,
|
|
Decl *Previous, Decl *Canon) {
|
|
FunctionDecl *FD = static_cast<FunctionDecl*>(D);
|
|
FunctionDecl *PrevFD = cast<FunctionDecl>(Previous);
|
|
|
|
FD->RedeclLink.setPrevious(PrevFD);
|
|
FD->First = PrevFD->First;
|
|
|
|
// If the previous declaration is an inline function declaration, then this
|
|
// declaration is too.
|
|
if (PrevFD->IsInline != FD->IsInline) {
|
|
// FIXME: [dcl.fct.spec]p4:
|
|
// If a function with external linkage is declared inline in one
|
|
// translation unit, it shall be declared inline in all translation
|
|
// units in which it appears.
|
|
//
|
|
// Be careful of this case:
|
|
//
|
|
// module A:
|
|
// template<typename T> struct X { void f(); };
|
|
// template<typename T> inline void X<T>::f() {}
|
|
//
|
|
// module B instantiates the declaration of X<int>::f
|
|
// module C instantiates the definition of X<int>::f
|
|
//
|
|
// If module B and C are merged, we do not have a violation of this rule.
|
|
FD->IsInline = true;
|
|
}
|
|
|
|
// If we need to propagate an exception specification along the redecl
|
|
// chain, make a note of that so that we can do so later.
|
|
auto *FPT = FD->getType()->getAs<FunctionProtoType>();
|
|
auto *PrevFPT = PrevFD->getType()->getAs<FunctionProtoType>();
|
|
if (FPT && PrevFPT) {
|
|
bool IsUnresolved = isUnresolvedExceptionSpec(FPT->getExceptionSpecType());
|
|
bool WasUnresolved =
|
|
isUnresolvedExceptionSpec(PrevFPT->getExceptionSpecType());
|
|
if (IsUnresolved != WasUnresolved)
|
|
Reader.PendingExceptionSpecUpdates.insert(
|
|
std::make_pair(Canon, IsUnresolved ? PrevFD : FD));
|
|
}
|
|
}
|
|
} // end namespace clang
|
|
|
|
void ASTDeclReader::attachPreviousDeclImpl(ASTReader &Reader, ...) {
|
|
llvm_unreachable("attachPreviousDecl on non-redeclarable declaration");
|
|
}
|
|
|
|
/// Inherit the default template argument from \p From to \p To. Returns
|
|
/// \c false if there is no default template for \p From.
|
|
template <typename ParmDecl>
|
|
static bool inheritDefaultTemplateArgument(ASTContext &Context, ParmDecl *From,
|
|
Decl *ToD) {
|
|
auto *To = cast<ParmDecl>(ToD);
|
|
if (!From->hasDefaultArgument())
|
|
return false;
|
|
To->setInheritedDefaultArgument(Context, From);
|
|
return true;
|
|
}
|
|
|
|
static void inheritDefaultTemplateArguments(ASTContext &Context,
|
|
TemplateDecl *From,
|
|
TemplateDecl *To) {
|
|
auto *FromTP = From->getTemplateParameters();
|
|
auto *ToTP = To->getTemplateParameters();
|
|
assert(FromTP->size() == ToTP->size() && "merged mismatched templates?");
|
|
|
|
for (unsigned I = 0, N = FromTP->size(); I != N; ++I) {
|
|
NamedDecl *FromParam = FromTP->getParam(N - I - 1);
|
|
if (FromParam->isParameterPack())
|
|
continue;
|
|
NamedDecl *ToParam = ToTP->getParam(N - I - 1);
|
|
|
|
if (auto *FTTP = dyn_cast<TemplateTypeParmDecl>(FromParam)) {
|
|
if (!inheritDefaultTemplateArgument(Context, FTTP, ToParam))
|
|
break;
|
|
} else if (auto *FNTTP = dyn_cast<NonTypeTemplateParmDecl>(FromParam)) {
|
|
if (!inheritDefaultTemplateArgument(Context, FNTTP, ToParam))
|
|
break;
|
|
} else {
|
|
if (!inheritDefaultTemplateArgument(
|
|
Context, cast<TemplateTemplateParmDecl>(FromParam), ToParam))
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
void ASTDeclReader::attachPreviousDecl(ASTReader &Reader, Decl *D,
|
|
Decl *Previous, Decl *Canon) {
|
|
assert(D && Previous);
|
|
|
|
switch (D->getKind()) {
|
|
#define ABSTRACT_DECL(TYPE)
|
|
#define DECL(TYPE, BASE) \
|
|
case Decl::TYPE: \
|
|
attachPreviousDeclImpl(Reader, cast<TYPE##Decl>(D), Previous, Canon); \
|
|
break;
|
|
#include "clang/AST/DeclNodes.inc"
|
|
}
|
|
|
|
// If the declaration was visible in one module, a redeclaration of it in
|
|
// another module remains visible even if it wouldn't be visible by itself.
|
|
//
|
|
// FIXME: In this case, the declaration should only be visible if a module
|
|
// that makes it visible has been imported.
|
|
D->IdentifierNamespace |=
|
|
Previous->IdentifierNamespace &
|
|
(Decl::IDNS_Ordinary | Decl::IDNS_Tag | Decl::IDNS_Type);
|
|
|
|
// If the declaration declares a template, it may inherit default arguments
|
|
// from the previous declaration.
|
|
if (TemplateDecl *TD = dyn_cast<TemplateDecl>(D))
|
|
inheritDefaultTemplateArguments(Reader.getContext(),
|
|
cast<TemplateDecl>(Previous), TD);
|
|
}
|
|
|
|
template<typename DeclT>
|
|
void ASTDeclReader::attachLatestDeclImpl(Redeclarable<DeclT> *D, Decl *Latest) {
|
|
D->RedeclLink.setLatest(cast<DeclT>(Latest));
|
|
}
|
|
void ASTDeclReader::attachLatestDeclImpl(...) {
|
|
llvm_unreachable("attachLatestDecl on non-redeclarable declaration");
|
|
}
|
|
|
|
void ASTDeclReader::attachLatestDecl(Decl *D, Decl *Latest) {
|
|
assert(D && Latest);
|
|
|
|
switch (D->getKind()) {
|
|
#define ABSTRACT_DECL(TYPE)
|
|
#define DECL(TYPE, BASE) \
|
|
case Decl::TYPE: \
|
|
attachLatestDeclImpl(cast<TYPE##Decl>(D), Latest); \
|
|
break;
|
|
#include "clang/AST/DeclNodes.inc"
|
|
}
|
|
}
|
|
|
|
template<typename DeclT>
|
|
void ASTDeclReader::markIncompleteDeclChainImpl(Redeclarable<DeclT> *D) {
|
|
D->RedeclLink.markIncomplete();
|
|
}
|
|
void ASTDeclReader::markIncompleteDeclChainImpl(...) {
|
|
llvm_unreachable("markIncompleteDeclChain on non-redeclarable declaration");
|
|
}
|
|
|
|
void ASTReader::markIncompleteDeclChain(Decl *D) {
|
|
switch (D->getKind()) {
|
|
#define ABSTRACT_DECL(TYPE)
|
|
#define DECL(TYPE, BASE) \
|
|
case Decl::TYPE: \
|
|
ASTDeclReader::markIncompleteDeclChainImpl(cast<TYPE##Decl>(D)); \
|
|
break;
|
|
#include "clang/AST/DeclNodes.inc"
|
|
}
|
|
}
|
|
|
|
/// \brief Read the declaration at the given offset from the AST file.
|
|
Decl *ASTReader::ReadDeclRecord(DeclID ID) {
|
|
unsigned Index = ID - NUM_PREDEF_DECL_IDS;
|
|
SourceLocation DeclLoc;
|
|
RecordLocation Loc = DeclCursorForID(ID, DeclLoc);
|
|
llvm::BitstreamCursor &DeclsCursor = Loc.F->DeclsCursor;
|
|
// Keep track of where we are in the stream, then jump back there
|
|
// after reading this declaration.
|
|
SavedStreamPosition SavedPosition(DeclsCursor);
|
|
|
|
ReadingKindTracker ReadingKind(Read_Decl, *this);
|
|
|
|
// Note that we are loading a declaration record.
|
|
Deserializing ADecl(this);
|
|
|
|
DeclsCursor.JumpToBit(Loc.Offset);
|
|
ASTRecordReader Record(*this, *Loc.F);
|
|
ASTDeclReader Reader(*this, Record, Loc, ID, DeclLoc);
|
|
unsigned Code = DeclsCursor.ReadCode();
|
|
|
|
ASTContext &Context = getContext();
|
|
Decl *D = nullptr;
|
|
switch ((DeclCode)Record.readRecord(DeclsCursor, Code)) {
|
|
case DECL_CONTEXT_LEXICAL:
|
|
case DECL_CONTEXT_VISIBLE:
|
|
llvm_unreachable("Record cannot be de-serialized with ReadDeclRecord");
|
|
case DECL_TYPEDEF:
|
|
D = TypedefDecl::CreateDeserialized(Context, ID);
|
|
break;
|
|
case DECL_TYPEALIAS:
|
|
D = TypeAliasDecl::CreateDeserialized(Context, ID);
|
|
break;
|
|
case DECL_ENUM:
|
|
D = EnumDecl::CreateDeserialized(Context, ID);
|
|
break;
|
|
case DECL_RECORD:
|
|
D = RecordDecl::CreateDeserialized(Context, ID);
|
|
break;
|
|
case DECL_ENUM_CONSTANT:
|
|
D = EnumConstantDecl::CreateDeserialized(Context, ID);
|
|
break;
|
|
case DECL_FUNCTION:
|
|
D = FunctionDecl::CreateDeserialized(Context, ID);
|
|
break;
|
|
case DECL_LINKAGE_SPEC:
|
|
D = LinkageSpecDecl::CreateDeserialized(Context, ID);
|
|
break;
|
|
case DECL_EXPORT:
|
|
D = ExportDecl::CreateDeserialized(Context, ID);
|
|
break;
|
|
case DECL_LABEL:
|
|
D = LabelDecl::CreateDeserialized(Context, ID);
|
|
break;
|
|
case DECL_NAMESPACE:
|
|
D = NamespaceDecl::CreateDeserialized(Context, ID);
|
|
break;
|
|
case DECL_NAMESPACE_ALIAS:
|
|
D = NamespaceAliasDecl::CreateDeserialized(Context, ID);
|
|
break;
|
|
case DECL_USING:
|
|
D = UsingDecl::CreateDeserialized(Context, ID);
|
|
break;
|
|
case DECL_USING_PACK:
|
|
D = UsingPackDecl::CreateDeserialized(Context, ID, Record.readInt());
|
|
break;
|
|
case DECL_USING_SHADOW:
|
|
D = UsingShadowDecl::CreateDeserialized(Context, ID);
|
|
break;
|
|
case DECL_CONSTRUCTOR_USING_SHADOW:
|
|
D = ConstructorUsingShadowDecl::CreateDeserialized(Context, ID);
|
|
break;
|
|
case DECL_USING_DIRECTIVE:
|
|
D = UsingDirectiveDecl::CreateDeserialized(Context, ID);
|
|
break;
|
|
case DECL_UNRESOLVED_USING_VALUE:
|
|
D = UnresolvedUsingValueDecl::CreateDeserialized(Context, ID);
|
|
break;
|
|
case DECL_UNRESOLVED_USING_TYPENAME:
|
|
D = UnresolvedUsingTypenameDecl::CreateDeserialized(Context, ID);
|
|
break;
|
|
case DECL_CXX_RECORD:
|
|
D = CXXRecordDecl::CreateDeserialized(Context, ID);
|
|
break;
|
|
case DECL_CXX_DEDUCTION_GUIDE:
|
|
D = CXXDeductionGuideDecl::CreateDeserialized(Context, ID);
|
|
break;
|
|
case DECL_CXX_METHOD:
|
|
D = CXXMethodDecl::CreateDeserialized(Context, ID);
|
|
break;
|
|
case DECL_CXX_CONSTRUCTOR:
|
|
D = CXXConstructorDecl::CreateDeserialized(Context, ID, false);
|
|
break;
|
|
case DECL_CXX_INHERITED_CONSTRUCTOR:
|
|
D = CXXConstructorDecl::CreateDeserialized(Context, ID, true);
|
|
break;
|
|
case DECL_CXX_DESTRUCTOR:
|
|
D = CXXDestructorDecl::CreateDeserialized(Context, ID);
|
|
break;
|
|
case DECL_CXX_CONVERSION:
|
|
D = CXXConversionDecl::CreateDeserialized(Context, ID);
|
|
break;
|
|
case DECL_ACCESS_SPEC:
|
|
D = AccessSpecDecl::CreateDeserialized(Context, ID);
|
|
break;
|
|
case DECL_FRIEND:
|
|
D = FriendDecl::CreateDeserialized(Context, ID, Record.readInt());
|
|
break;
|
|
case DECL_FRIEND_TEMPLATE:
|
|
D = FriendTemplateDecl::CreateDeserialized(Context, ID);
|
|
break;
|
|
case DECL_CLASS_TEMPLATE:
|
|
D = ClassTemplateDecl::CreateDeserialized(Context, ID);
|
|
break;
|
|
case DECL_CLASS_TEMPLATE_SPECIALIZATION:
|
|
D = ClassTemplateSpecializationDecl::CreateDeserialized(Context, ID);
|
|
break;
|
|
case DECL_CLASS_TEMPLATE_PARTIAL_SPECIALIZATION:
|
|
D = ClassTemplatePartialSpecializationDecl::CreateDeserialized(Context, ID);
|
|
break;
|
|
case DECL_VAR_TEMPLATE:
|
|
D = VarTemplateDecl::CreateDeserialized(Context, ID);
|
|
break;
|
|
case DECL_VAR_TEMPLATE_SPECIALIZATION:
|
|
D = VarTemplateSpecializationDecl::CreateDeserialized(Context, ID);
|
|
break;
|
|
case DECL_VAR_TEMPLATE_PARTIAL_SPECIALIZATION:
|
|
D = VarTemplatePartialSpecializationDecl::CreateDeserialized(Context, ID);
|
|
break;
|
|
case DECL_CLASS_SCOPE_FUNCTION_SPECIALIZATION:
|
|
D = ClassScopeFunctionSpecializationDecl::CreateDeserialized(Context, ID);
|
|
break;
|
|
case DECL_FUNCTION_TEMPLATE:
|
|
D = FunctionTemplateDecl::CreateDeserialized(Context, ID);
|
|
break;
|
|
case DECL_TEMPLATE_TYPE_PARM:
|
|
D = TemplateTypeParmDecl::CreateDeserialized(Context, ID);
|
|
break;
|
|
case DECL_NON_TYPE_TEMPLATE_PARM:
|
|
D = NonTypeTemplateParmDecl::CreateDeserialized(Context, ID);
|
|
break;
|
|
case DECL_EXPANDED_NON_TYPE_TEMPLATE_PARM_PACK:
|
|
D = NonTypeTemplateParmDecl::CreateDeserialized(Context, ID,
|
|
Record.readInt());
|
|
break;
|
|
case DECL_TEMPLATE_TEMPLATE_PARM:
|
|
D = TemplateTemplateParmDecl::CreateDeserialized(Context, ID);
|
|
break;
|
|
case DECL_EXPANDED_TEMPLATE_TEMPLATE_PARM_PACK:
|
|
D = TemplateTemplateParmDecl::CreateDeserialized(Context, ID,
|
|
Record.readInt());
|
|
break;
|
|
case DECL_TYPE_ALIAS_TEMPLATE:
|
|
D = TypeAliasTemplateDecl::CreateDeserialized(Context, ID);
|
|
break;
|
|
case DECL_STATIC_ASSERT:
|
|
D = StaticAssertDecl::CreateDeserialized(Context, ID);
|
|
break;
|
|
case DECL_OBJC_METHOD:
|
|
D = ObjCMethodDecl::CreateDeserialized(Context, ID);
|
|
break;
|
|
case DECL_OBJC_INTERFACE:
|
|
D = ObjCInterfaceDecl::CreateDeserialized(Context, ID);
|
|
break;
|
|
case DECL_OBJC_IVAR:
|
|
D = ObjCIvarDecl::CreateDeserialized(Context, ID);
|
|
break;
|
|
case DECL_OBJC_PROTOCOL:
|
|
D = ObjCProtocolDecl::CreateDeserialized(Context, ID);
|
|
break;
|
|
case DECL_OBJC_AT_DEFS_FIELD:
|
|
D = ObjCAtDefsFieldDecl::CreateDeserialized(Context, ID);
|
|
break;
|
|
case DECL_OBJC_CATEGORY:
|
|
D = ObjCCategoryDecl::CreateDeserialized(Context, ID);
|
|
break;
|
|
case DECL_OBJC_CATEGORY_IMPL:
|
|
D = ObjCCategoryImplDecl::CreateDeserialized(Context, ID);
|
|
break;
|
|
case DECL_OBJC_IMPLEMENTATION:
|
|
D = ObjCImplementationDecl::CreateDeserialized(Context, ID);
|
|
break;
|
|
case DECL_OBJC_COMPATIBLE_ALIAS:
|
|
D = ObjCCompatibleAliasDecl::CreateDeserialized(Context, ID);
|
|
break;
|
|
case DECL_OBJC_PROPERTY:
|
|
D = ObjCPropertyDecl::CreateDeserialized(Context, ID);
|
|
break;
|
|
case DECL_OBJC_PROPERTY_IMPL:
|
|
D = ObjCPropertyImplDecl::CreateDeserialized(Context, ID);
|
|
break;
|
|
case DECL_FIELD:
|
|
D = FieldDecl::CreateDeserialized(Context, ID);
|
|
break;
|
|
case DECL_INDIRECTFIELD:
|
|
D = IndirectFieldDecl::CreateDeserialized(Context, ID);
|
|
break;
|
|
case DECL_VAR:
|
|
D = VarDecl::CreateDeserialized(Context, ID);
|
|
break;
|
|
case DECL_IMPLICIT_PARAM:
|
|
D = ImplicitParamDecl::CreateDeserialized(Context, ID);
|
|
break;
|
|
case DECL_PARM_VAR:
|
|
D = ParmVarDecl::CreateDeserialized(Context, ID);
|
|
break;
|
|
case DECL_DECOMPOSITION:
|
|
D = DecompositionDecl::CreateDeserialized(Context, ID, Record.readInt());
|
|
break;
|
|
case DECL_BINDING:
|
|
D = BindingDecl::CreateDeserialized(Context, ID);
|
|
break;
|
|
case DECL_FILE_SCOPE_ASM:
|
|
D = FileScopeAsmDecl::CreateDeserialized(Context, ID);
|
|
break;
|
|
case DECL_BLOCK:
|
|
D = BlockDecl::CreateDeserialized(Context, ID);
|
|
break;
|
|
case DECL_MS_PROPERTY:
|
|
D = MSPropertyDecl::CreateDeserialized(Context, ID);
|
|
break;
|
|
case DECL_CAPTURED:
|
|
D = CapturedDecl::CreateDeserialized(Context, ID, Record.readInt());
|
|
break;
|
|
case DECL_CXX_BASE_SPECIFIERS:
|
|
Error("attempt to read a C++ base-specifier record as a declaration");
|
|
return nullptr;
|
|
case DECL_CXX_CTOR_INITIALIZERS:
|
|
Error("attempt to read a C++ ctor initializer record as a declaration");
|
|
return nullptr;
|
|
case DECL_IMPORT:
|
|
// Note: last entry of the ImportDecl record is the number of stored source
|
|
// locations.
|
|
D = ImportDecl::CreateDeserialized(Context, ID, Record.back());
|
|
break;
|
|
case DECL_OMP_THREADPRIVATE:
|
|
D = OMPThreadPrivateDecl::CreateDeserialized(Context, ID, Record.readInt());
|
|
break;
|
|
case DECL_OMP_DECLARE_REDUCTION:
|
|
D = OMPDeclareReductionDecl::CreateDeserialized(Context, ID);
|
|
break;
|
|
case DECL_OMP_CAPTUREDEXPR:
|
|
D = OMPCapturedExprDecl::CreateDeserialized(Context, ID);
|
|
break;
|
|
case DECL_PRAGMA_COMMENT:
|
|
D = PragmaCommentDecl::CreateDeserialized(Context, ID, Record.readInt());
|
|
break;
|
|
case DECL_PRAGMA_DETECT_MISMATCH:
|
|
D = PragmaDetectMismatchDecl::CreateDeserialized(Context, ID,
|
|
Record.readInt());
|
|
break;
|
|
case DECL_EMPTY:
|
|
D = EmptyDecl::CreateDeserialized(Context, ID);
|
|
break;
|
|
case DECL_OBJC_TYPE_PARAM:
|
|
D = ObjCTypeParamDecl::CreateDeserialized(Context, ID);
|
|
break;
|
|
}
|
|
|
|
assert(D && "Unknown declaration reading AST file");
|
|
LoadedDecl(Index, D);
|
|
// Set the DeclContext before doing any deserialization, to make sure internal
|
|
// calls to Decl::getASTContext() by Decl's methods will find the
|
|
// TranslationUnitDecl without crashing.
|
|
D->setDeclContext(Context.getTranslationUnitDecl());
|
|
Reader.Visit(D);
|
|
|
|
// If this declaration is also a declaration context, get the
|
|
// offsets for its tables of lexical and visible declarations.
|
|
if (DeclContext *DC = dyn_cast<DeclContext>(D)) {
|
|
std::pair<uint64_t, uint64_t> Offsets = Reader.VisitDeclContext(DC);
|
|
if (Offsets.first &&
|
|
ReadLexicalDeclContextStorage(*Loc.F, DeclsCursor, Offsets.first, DC))
|
|
return nullptr;
|
|
if (Offsets.second &&
|
|
ReadVisibleDeclContextStorage(*Loc.F, DeclsCursor, Offsets.second, ID))
|
|
return nullptr;
|
|
}
|
|
assert(Record.getIdx() == Record.size());
|
|
|
|
// Load any relevant update records.
|
|
PendingUpdateRecords.push_back(
|
|
PendingUpdateRecord(ID, D, /*JustLoaded=*/true));
|
|
|
|
// Load the categories after recursive loading is finished.
|
|
if (ObjCInterfaceDecl *Class = dyn_cast<ObjCInterfaceDecl>(D))
|
|
// If we already have a definition when deserializing the ObjCInterfaceDecl,
|
|
// we put the Decl in PendingDefinitions so we can pull the categories here.
|
|
if (Class->isThisDeclarationADefinition() ||
|
|
PendingDefinitions.count(Class))
|
|
loadObjCCategories(ID, Class);
|
|
|
|
// If we have deserialized a declaration that has a definition the
|
|
// AST consumer might need to know about, queue it.
|
|
// We don't pass it to the consumer immediately because we may be in recursive
|
|
// loading, and some declarations may still be initializing.
|
|
PotentiallyInterestingDecls.push_back(
|
|
InterestingDecl(D, Reader.hasPendingBody()));
|
|
|
|
return D;
|
|
}
|
|
|
|
void ASTReader::PassInterestingDeclsToConsumer() {
|
|
assert(Consumer);
|
|
|
|
if (PassingDeclsToConsumer)
|
|
return;
|
|
|
|
// Guard variable to avoid recursively redoing the process of passing
|
|
// decls to consumer.
|
|
SaveAndRestore<bool> GuardPassingDeclsToConsumer(PassingDeclsToConsumer,
|
|
true);
|
|
|
|
// Ensure that we've loaded all potentially-interesting declarations
|
|
// that need to be eagerly loaded.
|
|
for (auto ID : EagerlyDeserializedDecls)
|
|
GetDecl(ID);
|
|
EagerlyDeserializedDecls.clear();
|
|
|
|
while (!PotentiallyInterestingDecls.empty()) {
|
|
InterestingDecl D = PotentiallyInterestingDecls.front();
|
|
PotentiallyInterestingDecls.pop_front();
|
|
if (isConsumerInterestedIn(getContext(), D.getDecl(), D.hasPendingBody()))
|
|
PassInterestingDeclToConsumer(D.getDecl());
|
|
}
|
|
}
|
|
|
|
void ASTReader::loadDeclUpdateRecords(PendingUpdateRecord &Record) {
|
|
// The declaration may have been modified by files later in the chain.
|
|
// If this is the case, read the record containing the updates from each file
|
|
// and pass it to ASTDeclReader to make the modifications.
|
|
serialization::GlobalDeclID ID = Record.ID;
|
|
Decl *D = Record.D;
|
|
ProcessingUpdatesRAIIObj ProcessingUpdates(*this);
|
|
DeclUpdateOffsetsMap::iterator UpdI = DeclUpdateOffsets.find(ID);
|
|
|
|
llvm::SmallVector<serialization::DeclID, 8> PendingLazySpecializationIDs;
|
|
|
|
if (UpdI != DeclUpdateOffsets.end()) {
|
|
auto UpdateOffsets = std::move(UpdI->second);
|
|
DeclUpdateOffsets.erase(UpdI);
|
|
|
|
// Check if this decl was interesting to the consumer. If we just loaded
|
|
// the declaration, then we know it was interesting and we skip the call
|
|
// to isConsumerInterestedIn because it is unsafe to call in the
|
|
// current ASTReader state.
|
|
bool WasInteresting =
|
|
Record.JustLoaded || isConsumerInterestedIn(getContext(), D, false);
|
|
for (auto &FileAndOffset : UpdateOffsets) {
|
|
ModuleFile *F = FileAndOffset.first;
|
|
uint64_t Offset = FileAndOffset.second;
|
|
llvm::BitstreamCursor &Cursor = F->DeclsCursor;
|
|
SavedStreamPosition SavedPosition(Cursor);
|
|
Cursor.JumpToBit(Offset);
|
|
unsigned Code = Cursor.ReadCode();
|
|
ASTRecordReader Record(*this, *F);
|
|
unsigned RecCode = Record.readRecord(Cursor, Code);
|
|
(void)RecCode;
|
|
assert(RecCode == DECL_UPDATES && "Expected DECL_UPDATES record!");
|
|
|
|
ASTDeclReader Reader(*this, Record, RecordLocation(F, Offset), ID,
|
|
SourceLocation());
|
|
Reader.UpdateDecl(D, PendingLazySpecializationIDs);
|
|
|
|
// We might have made this declaration interesting. If so, remember that
|
|
// we need to hand it off to the consumer.
|
|
if (!WasInteresting &&
|
|
isConsumerInterestedIn(getContext(), D, Reader.hasPendingBody())) {
|
|
PotentiallyInterestingDecls.push_back(
|
|
InterestingDecl(D, Reader.hasPendingBody()));
|
|
WasInteresting = true;
|
|
}
|
|
}
|
|
}
|
|
// Add the lazy specializations to the template.
|
|
assert((PendingLazySpecializationIDs.empty() || isa<ClassTemplateDecl>(D) ||
|
|
isa<FunctionTemplateDecl>(D) || isa<VarTemplateDecl>(D)) &&
|
|
"Must not have pending specializations");
|
|
if (auto *CTD = dyn_cast<ClassTemplateDecl>(D))
|
|
ASTDeclReader::AddLazySpecializations(CTD, PendingLazySpecializationIDs);
|
|
else if (auto *FTD = dyn_cast<FunctionTemplateDecl>(D))
|
|
ASTDeclReader::AddLazySpecializations(FTD, PendingLazySpecializationIDs);
|
|
else if (auto *VTD = dyn_cast<VarTemplateDecl>(D))
|
|
ASTDeclReader::AddLazySpecializations(VTD, PendingLazySpecializationIDs);
|
|
PendingLazySpecializationIDs.clear();
|
|
|
|
// Load the pending visible updates for this decl context, if it has any.
|
|
auto I = PendingVisibleUpdates.find(ID);
|
|
if (I != PendingVisibleUpdates.end()) {
|
|
auto VisibleUpdates = std::move(I->second);
|
|
PendingVisibleUpdates.erase(I);
|
|
|
|
auto *DC = cast<DeclContext>(D)->getPrimaryContext();
|
|
for (const PendingVisibleUpdate &Update : VisibleUpdates)
|
|
Lookups[DC].Table.add(
|
|
Update.Mod, Update.Data,
|
|
reader::ASTDeclContextNameLookupTrait(*this, *Update.Mod));
|
|
DC->setHasExternalVisibleStorage(true);
|
|
}
|
|
}
|
|
|
|
void ASTReader::loadPendingDeclChain(Decl *FirstLocal, uint64_t LocalOffset) {
|
|
// Attach FirstLocal to the end of the decl chain.
|
|
Decl *CanonDecl = FirstLocal->getCanonicalDecl();
|
|
if (FirstLocal != CanonDecl) {
|
|
Decl *PrevMostRecent = ASTDeclReader::getMostRecentDecl(CanonDecl);
|
|
ASTDeclReader::attachPreviousDecl(
|
|
*this, FirstLocal, PrevMostRecent ? PrevMostRecent : CanonDecl,
|
|
CanonDecl);
|
|
}
|
|
|
|
if (!LocalOffset) {
|
|
ASTDeclReader::attachLatestDecl(CanonDecl, FirstLocal);
|
|
return;
|
|
}
|
|
|
|
// Load the list of other redeclarations from this module file.
|
|
ModuleFile *M = getOwningModuleFile(FirstLocal);
|
|
assert(M && "imported decl from no module file");
|
|
|
|
llvm::BitstreamCursor &Cursor = M->DeclsCursor;
|
|
SavedStreamPosition SavedPosition(Cursor);
|
|
Cursor.JumpToBit(LocalOffset);
|
|
|
|
RecordData Record;
|
|
unsigned Code = Cursor.ReadCode();
|
|
unsigned RecCode = Cursor.readRecord(Code, Record);
|
|
(void)RecCode;
|
|
assert(RecCode == LOCAL_REDECLARATIONS && "expected LOCAL_REDECLARATIONS record!");
|
|
|
|
// FIXME: We have several different dispatches on decl kind here; maybe
|
|
// we should instead generate one loop per kind and dispatch up-front?
|
|
Decl *MostRecent = FirstLocal;
|
|
for (unsigned I = 0, N = Record.size(); I != N; ++I) {
|
|
auto *D = GetLocalDecl(*M, Record[N - I - 1]);
|
|
ASTDeclReader::attachPreviousDecl(*this, D, MostRecent, CanonDecl);
|
|
MostRecent = D;
|
|
}
|
|
ASTDeclReader::attachLatestDecl(CanonDecl, MostRecent);
|
|
}
|
|
|
|
namespace {
|
|
/// \brief Given an ObjC interface, goes through the modules and links to the
|
|
/// interface all the categories for it.
|
|
class ObjCCategoriesVisitor {
|
|
ASTReader &Reader;
|
|
ObjCInterfaceDecl *Interface;
|
|
llvm::SmallPtrSetImpl<ObjCCategoryDecl *> &Deserialized;
|
|
ObjCCategoryDecl *Tail;
|
|
llvm::DenseMap<DeclarationName, ObjCCategoryDecl *> NameCategoryMap;
|
|
serialization::GlobalDeclID InterfaceID;
|
|
unsigned PreviousGeneration;
|
|
|
|
void add(ObjCCategoryDecl *Cat) {
|
|
// Only process each category once.
|
|
if (!Deserialized.erase(Cat))
|
|
return;
|
|
|
|
// Check for duplicate categories.
|
|
if (Cat->getDeclName()) {
|
|
ObjCCategoryDecl *&Existing = NameCategoryMap[Cat->getDeclName()];
|
|
if (Existing &&
|
|
Reader.getOwningModuleFile(Existing)
|
|
!= Reader.getOwningModuleFile(Cat)) {
|
|
// FIXME: We should not warn for duplicates in diamond:
|
|
//
|
|
// MT //
|
|
// / \ //
|
|
// ML MR //
|
|
// \ / //
|
|
// MB //
|
|
//
|
|
// If there are duplicates in ML/MR, there will be warning when
|
|
// creating MB *and* when importing MB. We should not warn when
|
|
// importing.
|
|
Reader.Diag(Cat->getLocation(), diag::warn_dup_category_def)
|
|
<< Interface->getDeclName() << Cat->getDeclName();
|
|
Reader.Diag(Existing->getLocation(), diag::note_previous_definition);
|
|
} else if (!Existing) {
|
|
// Record this category.
|
|
Existing = Cat;
|
|
}
|
|
}
|
|
|
|
// Add this category to the end of the chain.
|
|
if (Tail)
|
|
ASTDeclReader::setNextObjCCategory(Tail, Cat);
|
|
else
|
|
Interface->setCategoryListRaw(Cat);
|
|
Tail = Cat;
|
|
}
|
|
|
|
public:
|
|
ObjCCategoriesVisitor(ASTReader &Reader,
|
|
ObjCInterfaceDecl *Interface,
|
|
llvm::SmallPtrSetImpl<ObjCCategoryDecl *> &Deserialized,
|
|
serialization::GlobalDeclID InterfaceID,
|
|
unsigned PreviousGeneration)
|
|
: Reader(Reader), Interface(Interface), Deserialized(Deserialized),
|
|
Tail(nullptr), InterfaceID(InterfaceID),
|
|
PreviousGeneration(PreviousGeneration)
|
|
{
|
|
// Populate the name -> category map with the set of known categories.
|
|
for (auto *Cat : Interface->known_categories()) {
|
|
if (Cat->getDeclName())
|
|
NameCategoryMap[Cat->getDeclName()] = Cat;
|
|
|
|
// Keep track of the tail of the category list.
|
|
Tail = Cat;
|
|
}
|
|
}
|
|
|
|
bool operator()(ModuleFile &M) {
|
|
// If we've loaded all of the category information we care about from
|
|
// this module file, we're done.
|
|
if (M.Generation <= PreviousGeneration)
|
|
return true;
|
|
|
|
// Map global ID of the definition down to the local ID used in this
|
|
// module file. If there is no such mapping, we'll find nothing here
|
|
// (or in any module it imports).
|
|
DeclID LocalID = Reader.mapGlobalIDToModuleFileGlobalID(M, InterfaceID);
|
|
if (!LocalID)
|
|
return true;
|
|
|
|
// Perform a binary search to find the local redeclarations for this
|
|
// declaration (if any).
|
|
const ObjCCategoriesInfo Compare = { LocalID, 0 };
|
|
const ObjCCategoriesInfo *Result
|
|
= std::lower_bound(M.ObjCCategoriesMap,
|
|
M.ObjCCategoriesMap + M.LocalNumObjCCategoriesInMap,
|
|
Compare);
|
|
if (Result == M.ObjCCategoriesMap + M.LocalNumObjCCategoriesInMap ||
|
|
Result->DefinitionID != LocalID) {
|
|
// We didn't find anything. If the class definition is in this module
|
|
// file, then the module files it depends on cannot have any categories,
|
|
// so suppress further lookup.
|
|
return Reader.isDeclIDFromModule(InterfaceID, M);
|
|
}
|
|
|
|
// We found something. Dig out all of the categories.
|
|
unsigned Offset = Result->Offset;
|
|
unsigned N = M.ObjCCategories[Offset];
|
|
M.ObjCCategories[Offset++] = 0; // Don't try to deserialize again
|
|
for (unsigned I = 0; I != N; ++I)
|
|
add(cast_or_null<ObjCCategoryDecl>(
|
|
Reader.GetLocalDecl(M, M.ObjCCategories[Offset++])));
|
|
return true;
|
|
}
|
|
};
|
|
} // end anonymous namespace
|
|
|
|
void ASTReader::loadObjCCategories(serialization::GlobalDeclID ID,
|
|
ObjCInterfaceDecl *D,
|
|
unsigned PreviousGeneration) {
|
|
ObjCCategoriesVisitor Visitor(*this, D, CategoriesDeserialized, ID,
|
|
PreviousGeneration);
|
|
ModuleMgr.visit(Visitor);
|
|
}
|
|
|
|
template<typename DeclT, typename Fn>
|
|
static void forAllLaterRedecls(DeclT *D, Fn F) {
|
|
F(D);
|
|
|
|
// Check whether we've already merged D into its redeclaration chain.
|
|
// MostRecent may or may not be nullptr if D has not been merged. If
|
|
// not, walk the merged redecl chain and see if it's there.
|
|
auto *MostRecent = D->getMostRecentDecl();
|
|
bool Found = false;
|
|
for (auto *Redecl = MostRecent; Redecl && !Found;
|
|
Redecl = Redecl->getPreviousDecl())
|
|
Found = (Redecl == D);
|
|
|
|
// If this declaration is merged, apply the functor to all later decls.
|
|
if (Found) {
|
|
for (auto *Redecl = MostRecent; Redecl != D;
|
|
Redecl = Redecl->getPreviousDecl())
|
|
F(Redecl);
|
|
}
|
|
}
|
|
|
|
void ASTDeclReader::UpdateDecl(Decl *D,
|
|
llvm::SmallVectorImpl<serialization::DeclID> &PendingLazySpecializationIDs) {
|
|
while (Record.getIdx() < Record.size()) {
|
|
switch ((DeclUpdateKind)Record.readInt()) {
|
|
case UPD_CXX_ADDED_IMPLICIT_MEMBER: {
|
|
auto *RD = cast<CXXRecordDecl>(D);
|
|
// FIXME: If we also have an update record for instantiating the
|
|
// definition of D, we need that to happen before we get here.
|
|
Decl *MD = Record.readDecl();
|
|
assert(MD && "couldn't read decl from update record");
|
|
// FIXME: We should call addHiddenDecl instead, to add the member
|
|
// to its DeclContext.
|
|
RD->addedMember(MD);
|
|
break;
|
|
}
|
|
|
|
case UPD_CXX_ADDED_TEMPLATE_SPECIALIZATION:
|
|
// It will be added to the template's lazy specialization set.
|
|
PendingLazySpecializationIDs.push_back(ReadDeclID());
|
|
break;
|
|
|
|
case UPD_CXX_ADDED_ANONYMOUS_NAMESPACE: {
|
|
NamespaceDecl *Anon = ReadDeclAs<NamespaceDecl>();
|
|
|
|
// Each module has its own anonymous namespace, which is disjoint from
|
|
// any other module's anonymous namespaces, so don't attach the anonymous
|
|
// namespace at all.
|
|
if (!Record.isModule()) {
|
|
if (TranslationUnitDecl *TU = dyn_cast<TranslationUnitDecl>(D))
|
|
TU->setAnonymousNamespace(Anon);
|
|
else
|
|
cast<NamespaceDecl>(D)->setAnonymousNamespace(Anon);
|
|
}
|
|
break;
|
|
}
|
|
|
|
case UPD_CXX_ADDED_VAR_DEFINITION: {
|
|
VarDecl *VD = cast<VarDecl>(D);
|
|
VD->NonParmVarDeclBits.IsInline = Record.readInt();
|
|
VD->NonParmVarDeclBits.IsInlineSpecified = Record.readInt();
|
|
uint64_t Val = Record.readInt();
|
|
if (Val && !VD->getInit()) {
|
|
VD->setInit(Record.readExpr());
|
|
if (Val > 1) { // IsInitKnownICE = 1, IsInitNotICE = 2, IsInitICE = 3
|
|
EvaluatedStmt *Eval = VD->ensureEvaluatedStmt();
|
|
Eval->CheckedICE = true;
|
|
Eval->IsICE = Val == 3;
|
|
}
|
|
}
|
|
break;
|
|
}
|
|
|
|
case UPD_CXX_POINT_OF_INSTANTIATION: {
|
|
SourceLocation POI = Record.readSourceLocation();
|
|
if (VarTemplateSpecializationDecl *VTSD =
|
|
dyn_cast<VarTemplateSpecializationDecl>(D)) {
|
|
VTSD->setPointOfInstantiation(POI);
|
|
} else if (auto *VD = dyn_cast<VarDecl>(D)) {
|
|
VD->getMemberSpecializationInfo()->setPointOfInstantiation(POI);
|
|
} else {
|
|
auto *FD = cast<FunctionDecl>(D);
|
|
if (auto *FTSInfo = FD->TemplateOrSpecialization
|
|
.dyn_cast<FunctionTemplateSpecializationInfo *>())
|
|
FTSInfo->setPointOfInstantiation(POI);
|
|
else
|
|
FD->TemplateOrSpecialization.get<MemberSpecializationInfo *>()
|
|
->setPointOfInstantiation(POI);
|
|
}
|
|
break;
|
|
}
|
|
|
|
case UPD_CXX_INSTANTIATED_DEFAULT_ARGUMENT: {
|
|
auto Param = cast<ParmVarDecl>(D);
|
|
|
|
// We have to read the default argument regardless of whether we use it
|
|
// so that hypothetical further update records aren't messed up.
|
|
// TODO: Add a function to skip over the next expr record.
|
|
auto DefaultArg = Record.readExpr();
|
|
|
|
// Only apply the update if the parameter still has an uninstantiated
|
|
// default argument.
|
|
if (Param->hasUninstantiatedDefaultArg())
|
|
Param->setDefaultArg(DefaultArg);
|
|
break;
|
|
}
|
|
|
|
case UPD_CXX_INSTANTIATED_DEFAULT_MEMBER_INITIALIZER: {
|
|
auto FD = cast<FieldDecl>(D);
|
|
auto DefaultInit = Record.readExpr();
|
|
|
|
// Only apply the update if the field still has an uninstantiated
|
|
// default member initializer.
|
|
if (FD->hasInClassInitializer() && !FD->getInClassInitializer()) {
|
|
if (DefaultInit)
|
|
FD->setInClassInitializer(DefaultInit);
|
|
else
|
|
// Instantiation failed. We can get here if we serialized an AST for
|
|
// an invalid program.
|
|
FD->removeInClassInitializer();
|
|
}
|
|
break;
|
|
}
|
|
|
|
case UPD_CXX_ADDED_FUNCTION_DEFINITION: {
|
|
FunctionDecl *FD = cast<FunctionDecl>(D);
|
|
if (Reader.PendingBodies[FD]) {
|
|
// FIXME: Maybe check for ODR violations.
|
|
// It's safe to stop now because this update record is always last.
|
|
return;
|
|
}
|
|
|
|
if (Record.readInt()) {
|
|
// Maintain AST consistency: any later redeclarations of this function
|
|
// are inline if this one is. (We might have merged another declaration
|
|
// into this one.)
|
|
forAllLaterRedecls(FD, [](FunctionDecl *FD) {
|
|
FD->setImplicitlyInline();
|
|
});
|
|
}
|
|
FD->setInnerLocStart(ReadSourceLocation());
|
|
ReadFunctionDefinition(FD);
|
|
assert(Record.getIdx() == Record.size() && "lazy body must be last");
|
|
break;
|
|
}
|
|
|
|
case UPD_CXX_INSTANTIATED_CLASS_DEFINITION: {
|
|
auto *RD = cast<CXXRecordDecl>(D);
|
|
auto *OldDD = RD->getCanonicalDecl()->DefinitionData;
|
|
bool HadRealDefinition =
|
|
OldDD && (OldDD->Definition != RD ||
|
|
!Reader.PendingFakeDefinitionData.count(OldDD));
|
|
ReadCXXRecordDefinition(RD, /*Update*/true);
|
|
|
|
// Visible update is handled separately.
|
|
uint64_t LexicalOffset = ReadLocalOffset();
|
|
if (!HadRealDefinition && LexicalOffset) {
|
|
Record.readLexicalDeclContextStorage(LexicalOffset, RD);
|
|
Reader.PendingFakeDefinitionData.erase(OldDD);
|
|
}
|
|
|
|
auto TSK = (TemplateSpecializationKind)Record.readInt();
|
|
SourceLocation POI = ReadSourceLocation();
|
|
if (MemberSpecializationInfo *MSInfo =
|
|
RD->getMemberSpecializationInfo()) {
|
|
MSInfo->setTemplateSpecializationKind(TSK);
|
|
MSInfo->setPointOfInstantiation(POI);
|
|
} else {
|
|
ClassTemplateSpecializationDecl *Spec =
|
|
cast<ClassTemplateSpecializationDecl>(RD);
|
|
Spec->setTemplateSpecializationKind(TSK);
|
|
Spec->setPointOfInstantiation(POI);
|
|
|
|
if (Record.readInt()) {
|
|
auto PartialSpec =
|
|
ReadDeclAs<ClassTemplatePartialSpecializationDecl>();
|
|
SmallVector<TemplateArgument, 8> TemplArgs;
|
|
Record.readTemplateArgumentList(TemplArgs);
|
|
auto *TemplArgList = TemplateArgumentList::CreateCopy(
|
|
Reader.getContext(), TemplArgs);
|
|
|
|
// FIXME: If we already have a partial specialization set,
|
|
// check that it matches.
|
|
if (!Spec->getSpecializedTemplateOrPartial()
|
|
.is<ClassTemplatePartialSpecializationDecl *>())
|
|
Spec->setInstantiationOf(PartialSpec, TemplArgList);
|
|
}
|
|
}
|
|
|
|
RD->setTagKind((TagTypeKind)Record.readInt());
|
|
RD->setLocation(ReadSourceLocation());
|
|
RD->setLocStart(ReadSourceLocation());
|
|
RD->setBraceRange(ReadSourceRange());
|
|
|
|
if (Record.readInt()) {
|
|
AttrVec Attrs;
|
|
Record.readAttributes(Attrs);
|
|
// If the declaration already has attributes, we assume that some other
|
|
// AST file already loaded them.
|
|
if (!D->hasAttrs())
|
|
D->setAttrsImpl(Attrs, Reader.getContext());
|
|
}
|
|
break;
|
|
}
|
|
|
|
case UPD_CXX_RESOLVED_DTOR_DELETE: {
|
|
// Set the 'operator delete' directly to avoid emitting another update
|
|
// record.
|
|
auto *Del = ReadDeclAs<FunctionDecl>();
|
|
auto *First = cast<CXXDestructorDecl>(D->getCanonicalDecl());
|
|
auto *ThisArg = Record.readExpr();
|
|
// FIXME: Check consistency if we have an old and new operator delete.
|
|
if (!First->OperatorDelete) {
|
|
First->OperatorDelete = Del;
|
|
First->OperatorDeleteThisArg = ThisArg;
|
|
}
|
|
break;
|
|
}
|
|
|
|
case UPD_CXX_RESOLVED_EXCEPTION_SPEC: {
|
|
FunctionProtoType::ExceptionSpecInfo ESI;
|
|
SmallVector<QualType, 8> ExceptionStorage;
|
|
Record.readExceptionSpec(ExceptionStorage, ESI);
|
|
|
|
// Update this declaration's exception specification, if needed.
|
|
auto *FD = cast<FunctionDecl>(D);
|
|
auto *FPT = FD->getType()->castAs<FunctionProtoType>();
|
|
// FIXME: If the exception specification is already present, check that it
|
|
// matches.
|
|
if (isUnresolvedExceptionSpec(FPT->getExceptionSpecType())) {
|
|
FD->setType(Reader.getContext().getFunctionType(
|
|
FPT->getReturnType(), FPT->getParamTypes(),
|
|
FPT->getExtProtoInfo().withExceptionSpec(ESI)));
|
|
|
|
// When we get to the end of deserializing, see if there are other decls
|
|
// that we need to propagate this exception specification onto.
|
|
Reader.PendingExceptionSpecUpdates.insert(
|
|
std::make_pair(FD->getCanonicalDecl(), FD));
|
|
}
|
|
break;
|
|
}
|
|
|
|
case UPD_CXX_DEDUCED_RETURN_TYPE: {
|
|
// FIXME: Also do this when merging redecls.
|
|
QualType DeducedResultType = Record.readType();
|
|
for (auto *Redecl : merged_redecls(D)) {
|
|
// FIXME: If the return type is already deduced, check that it matches.
|
|
FunctionDecl *FD = cast<FunctionDecl>(Redecl);
|
|
Reader.getContext().adjustDeducedFunctionResultType(FD,
|
|
DeducedResultType);
|
|
}
|
|
break;
|
|
}
|
|
|
|
case UPD_DECL_MARKED_USED: {
|
|
// Maintain AST consistency: any later redeclarations are used too.
|
|
D->markUsed(Reader.getContext());
|
|
break;
|
|
}
|
|
|
|
case UPD_MANGLING_NUMBER:
|
|
Reader.getContext().setManglingNumber(cast<NamedDecl>(D),
|
|
Record.readInt());
|
|
break;
|
|
|
|
case UPD_STATIC_LOCAL_NUMBER:
|
|
Reader.getContext().setStaticLocalNumber(cast<VarDecl>(D),
|
|
Record.readInt());
|
|
break;
|
|
|
|
case UPD_DECL_MARKED_OPENMP_THREADPRIVATE:
|
|
D->addAttr(OMPThreadPrivateDeclAttr::CreateImplicit(Reader.getContext(),
|
|
ReadSourceRange()));
|
|
break;
|
|
|
|
case UPD_DECL_EXPORTED: {
|
|
unsigned SubmoduleID = readSubmoduleID();
|
|
auto *Exported = cast<NamedDecl>(D);
|
|
if (auto *TD = dyn_cast<TagDecl>(Exported))
|
|
Exported = TD->getDefinition();
|
|
Module *Owner = SubmoduleID ? Reader.getSubmodule(SubmoduleID) : nullptr;
|
|
if (Reader.getContext().getLangOpts().ModulesLocalVisibility) {
|
|
Reader.getContext().mergeDefinitionIntoModule(cast<NamedDecl>(Exported),
|
|
Owner);
|
|
Reader.PendingMergedDefinitionsToDeduplicate.insert(
|
|
cast<NamedDecl>(Exported));
|
|
} else if (Owner && Owner->NameVisibility != Module::AllVisible) {
|
|
// If Owner is made visible at some later point, make this declaration
|
|
// visible too.
|
|
Reader.HiddenNamesMap[Owner].push_back(Exported);
|
|
} else {
|
|
// The declaration is now visible.
|
|
Exported->setVisibleDespiteOwningModule();
|
|
}
|
|
break;
|
|
}
|
|
|
|
case UPD_DECL_MARKED_OPENMP_DECLARETARGET:
|
|
case UPD_ADDED_ATTR_TO_RECORD:
|
|
AttrVec Attrs;
|
|
Record.readAttributes(Attrs);
|
|
assert(Attrs.size() == 1);
|
|
D->addAttr(Attrs[0]);
|
|
break;
|
|
}
|
|
}
|
|
}
|