First pass at generating weak definitions of inline functions from module files (& skipping (-O0) or emitting available_externally (optimizations) definitions where those modules are used). External functions defined in modules are emitted into the modular object file as well (this may turn an existing ODR violation (if that module were imported into multiple translations) into valid/linkable code). Internal symbols (static functions, for example) are not correctly supported yet. The symbol will be produced, internal, in the modular object - unreferenceable from the users. Reviewers: rsmith Differential Revision: https://reviews.llvm.org/D28845 llvm-svn: 293456
327 lines
11 KiB
C++
327 lines
11 KiB
C++
//===--- MultiplexExternalSemaSource.cpp ---------------------------------===//
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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 event dispatching to the subscribed clients.
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//
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//===----------------------------------------------------------------------===//
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#include "clang/Sema/MultiplexExternalSemaSource.h"
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#include "clang/AST/DeclContextInternals.h"
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#include "clang/Sema/Lookup.h"
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using namespace clang;
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///\brief Constructs a new multiplexing external sema source and appends the
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/// given element to it.
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///
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///\param[in] source - An ExternalSemaSource.
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///
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MultiplexExternalSemaSource::MultiplexExternalSemaSource(ExternalSemaSource &s1,
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ExternalSemaSource &s2){
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Sources.push_back(&s1);
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Sources.push_back(&s2);
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}
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// pin the vtable here.
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MultiplexExternalSemaSource::~MultiplexExternalSemaSource() {}
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///\brief Appends new source to the source list.
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///
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///\param[in] source - An ExternalSemaSource.
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///
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void MultiplexExternalSemaSource::addSource(ExternalSemaSource &source) {
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Sources.push_back(&source);
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}
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//===----------------------------------------------------------------------===//
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// ExternalASTSource.
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//===----------------------------------------------------------------------===//
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Decl *MultiplexExternalSemaSource::GetExternalDecl(uint32_t ID) {
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for(size_t i = 0; i < Sources.size(); ++i)
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if (Decl *Result = Sources[i]->GetExternalDecl(ID))
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return Result;
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return nullptr;
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}
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void MultiplexExternalSemaSource::CompleteRedeclChain(const Decl *D) {
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for (size_t i = 0; i < Sources.size(); ++i)
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Sources[i]->CompleteRedeclChain(D);
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}
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Selector MultiplexExternalSemaSource::GetExternalSelector(uint32_t ID) {
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Selector Sel;
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for(size_t i = 0; i < Sources.size(); ++i) {
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Sel = Sources[i]->GetExternalSelector(ID);
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if (!Sel.isNull())
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return Sel;
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}
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return Sel;
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}
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uint32_t MultiplexExternalSemaSource::GetNumExternalSelectors() {
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uint32_t total = 0;
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for(size_t i = 0; i < Sources.size(); ++i)
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total += Sources[i]->GetNumExternalSelectors();
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return total;
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}
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Stmt *MultiplexExternalSemaSource::GetExternalDeclStmt(uint64_t Offset) {
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for(size_t i = 0; i < Sources.size(); ++i)
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if (Stmt *Result = Sources[i]->GetExternalDeclStmt(Offset))
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return Result;
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return nullptr;
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}
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CXXBaseSpecifier *MultiplexExternalSemaSource::GetExternalCXXBaseSpecifiers(
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uint64_t Offset){
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for(size_t i = 0; i < Sources.size(); ++i)
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if (CXXBaseSpecifier *R = Sources[i]->GetExternalCXXBaseSpecifiers(Offset))
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return R;
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return nullptr;
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}
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CXXCtorInitializer **
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MultiplexExternalSemaSource::GetExternalCXXCtorInitializers(uint64_t Offset) {
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for (auto *S : Sources)
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if (auto *R = S->GetExternalCXXCtorInitializers(Offset))
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return R;
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return nullptr;
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}
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ExternalASTSource::ExtKind
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MultiplexExternalSemaSource::hasExternalDefinitions(unsigned int ID) {
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for (const auto &S : Sources)
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if (auto EK = S->hasExternalDefinitions(ID))
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if (EK != EK_ReplyHazy)
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return EK;
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return EK_ReplyHazy;
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}
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bool MultiplexExternalSemaSource::
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FindExternalVisibleDeclsByName(const DeclContext *DC, DeclarationName Name) {
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bool AnyDeclsFound = false;
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for (size_t i = 0; i < Sources.size(); ++i)
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AnyDeclsFound |= Sources[i]->FindExternalVisibleDeclsByName(DC, Name);
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return AnyDeclsFound;
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}
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void MultiplexExternalSemaSource::completeVisibleDeclsMap(const DeclContext *DC){
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for(size_t i = 0; i < Sources.size(); ++i)
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Sources[i]->completeVisibleDeclsMap(DC);
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}
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void MultiplexExternalSemaSource::FindExternalLexicalDecls(
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const DeclContext *DC, llvm::function_ref<bool(Decl::Kind)> IsKindWeWant,
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SmallVectorImpl<Decl *> &Result) {
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for(size_t i = 0; i < Sources.size(); ++i)
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Sources[i]->FindExternalLexicalDecls(DC, IsKindWeWant, Result);
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}
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void MultiplexExternalSemaSource::FindFileRegionDecls(FileID File,
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unsigned Offset,
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unsigned Length,
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SmallVectorImpl<Decl *> &Decls){
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for(size_t i = 0; i < Sources.size(); ++i)
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Sources[i]->FindFileRegionDecls(File, Offset, Length, Decls);
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}
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void MultiplexExternalSemaSource::CompleteType(TagDecl *Tag) {
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for(size_t i = 0; i < Sources.size(); ++i)
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Sources[i]->CompleteType(Tag);
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}
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void MultiplexExternalSemaSource::CompleteType(ObjCInterfaceDecl *Class) {
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for(size_t i = 0; i < Sources.size(); ++i)
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Sources[i]->CompleteType(Class);
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}
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void MultiplexExternalSemaSource::ReadComments() {
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for(size_t i = 0; i < Sources.size(); ++i)
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Sources[i]->ReadComments();
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}
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void MultiplexExternalSemaSource::StartedDeserializing() {
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for(size_t i = 0; i < Sources.size(); ++i)
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Sources[i]->StartedDeserializing();
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}
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void MultiplexExternalSemaSource::FinishedDeserializing() {
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for(size_t i = 0; i < Sources.size(); ++i)
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Sources[i]->FinishedDeserializing();
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}
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void MultiplexExternalSemaSource::StartTranslationUnit(ASTConsumer *Consumer) {
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for(size_t i = 0; i < Sources.size(); ++i)
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Sources[i]->StartTranslationUnit(Consumer);
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}
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void MultiplexExternalSemaSource::PrintStats() {
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for(size_t i = 0; i < Sources.size(); ++i)
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Sources[i]->PrintStats();
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}
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bool MultiplexExternalSemaSource::layoutRecordType(const RecordDecl *Record,
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uint64_t &Size,
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uint64_t &Alignment,
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llvm::DenseMap<const FieldDecl *, uint64_t> &FieldOffsets,
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llvm::DenseMap<const CXXRecordDecl *, CharUnits> &BaseOffsets,
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llvm::DenseMap<const CXXRecordDecl *, CharUnits> &VirtualBaseOffsets){
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for(size_t i = 0; i < Sources.size(); ++i)
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if (Sources[i]->layoutRecordType(Record, Size, Alignment, FieldOffsets,
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BaseOffsets, VirtualBaseOffsets))
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return true;
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return false;
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}
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void MultiplexExternalSemaSource::
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getMemoryBufferSizes(MemoryBufferSizes &sizes) const {
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for(size_t i = 0; i < Sources.size(); ++i)
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Sources[i]->getMemoryBufferSizes(sizes);
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}
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//===----------------------------------------------------------------------===//
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// ExternalSemaSource.
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//===----------------------------------------------------------------------===//
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void MultiplexExternalSemaSource::InitializeSema(Sema &S) {
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for(size_t i = 0; i < Sources.size(); ++i)
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Sources[i]->InitializeSema(S);
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}
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void MultiplexExternalSemaSource::ForgetSema() {
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for(size_t i = 0; i < Sources.size(); ++i)
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Sources[i]->ForgetSema();
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}
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void MultiplexExternalSemaSource::ReadMethodPool(Selector Sel) {
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for(size_t i = 0; i < Sources.size(); ++i)
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Sources[i]->ReadMethodPool(Sel);
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}
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void MultiplexExternalSemaSource::updateOutOfDateSelector(Selector Sel) {
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for(size_t i = 0; i < Sources.size(); ++i)
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Sources[i]->updateOutOfDateSelector(Sel);
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}
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void MultiplexExternalSemaSource::ReadKnownNamespaces(
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SmallVectorImpl<NamespaceDecl*> &Namespaces){
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for(size_t i = 0; i < Sources.size(); ++i)
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Sources[i]->ReadKnownNamespaces(Namespaces);
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}
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void MultiplexExternalSemaSource::ReadUndefinedButUsed(
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llvm::MapVector<NamedDecl *, SourceLocation> &Undefined) {
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for(size_t i = 0; i < Sources.size(); ++i)
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Sources[i]->ReadUndefinedButUsed(Undefined);
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}
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void MultiplexExternalSemaSource::ReadMismatchingDeleteExpressions(
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llvm::MapVector<FieldDecl *,
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llvm::SmallVector<std::pair<SourceLocation, bool>, 4>> &
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Exprs) {
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for (auto &Source : Sources)
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Source->ReadMismatchingDeleteExpressions(Exprs);
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}
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bool MultiplexExternalSemaSource::LookupUnqualified(LookupResult &R, Scope *S){
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for(size_t i = 0; i < Sources.size(); ++i)
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Sources[i]->LookupUnqualified(R, S);
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return !R.empty();
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}
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void MultiplexExternalSemaSource::ReadTentativeDefinitions(
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SmallVectorImpl<VarDecl*> &TentativeDefs) {
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for(size_t i = 0; i < Sources.size(); ++i)
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Sources[i]->ReadTentativeDefinitions(TentativeDefs);
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}
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void MultiplexExternalSemaSource::ReadUnusedFileScopedDecls(
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SmallVectorImpl<const DeclaratorDecl*> &Decls) {
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for(size_t i = 0; i < Sources.size(); ++i)
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Sources[i]->ReadUnusedFileScopedDecls(Decls);
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}
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void MultiplexExternalSemaSource::ReadDelegatingConstructors(
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SmallVectorImpl<CXXConstructorDecl*> &Decls) {
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for(size_t i = 0; i < Sources.size(); ++i)
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Sources[i]->ReadDelegatingConstructors(Decls);
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}
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void MultiplexExternalSemaSource::ReadExtVectorDecls(
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SmallVectorImpl<TypedefNameDecl*> &Decls) {
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for(size_t i = 0; i < Sources.size(); ++i)
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Sources[i]->ReadExtVectorDecls(Decls);
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}
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void MultiplexExternalSemaSource::ReadUnusedLocalTypedefNameCandidates(
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llvm::SmallSetVector<const TypedefNameDecl *, 4> &Decls) {
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for(size_t i = 0; i < Sources.size(); ++i)
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Sources[i]->ReadUnusedLocalTypedefNameCandidates(Decls);
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}
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void MultiplexExternalSemaSource::ReadReferencedSelectors(
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SmallVectorImpl<std::pair<Selector, SourceLocation> > &Sels) {
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for(size_t i = 0; i < Sources.size(); ++i)
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Sources[i]->ReadReferencedSelectors(Sels);
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}
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void MultiplexExternalSemaSource::ReadWeakUndeclaredIdentifiers(
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SmallVectorImpl<std::pair<IdentifierInfo*, WeakInfo> > &WI) {
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for(size_t i = 0; i < Sources.size(); ++i)
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Sources[i]->ReadWeakUndeclaredIdentifiers(WI);
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}
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void MultiplexExternalSemaSource::ReadUsedVTables(
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SmallVectorImpl<ExternalVTableUse> &VTables) {
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for(size_t i = 0; i < Sources.size(); ++i)
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Sources[i]->ReadUsedVTables(VTables);
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}
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void MultiplexExternalSemaSource::ReadPendingInstantiations(
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SmallVectorImpl<std::pair<ValueDecl*,
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SourceLocation> > &Pending) {
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for(size_t i = 0; i < Sources.size(); ++i)
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Sources[i]->ReadPendingInstantiations(Pending);
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}
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void MultiplexExternalSemaSource::ReadLateParsedTemplates(
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llvm::MapVector<const FunctionDecl *, std::unique_ptr<LateParsedTemplate>>
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&LPTMap) {
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for (size_t i = 0; i < Sources.size(); ++i)
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Sources[i]->ReadLateParsedTemplates(LPTMap);
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}
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TypoCorrection MultiplexExternalSemaSource::CorrectTypo(
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const DeclarationNameInfo &Typo,
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int LookupKind, Scope *S, CXXScopeSpec *SS,
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CorrectionCandidateCallback &CCC,
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DeclContext *MemberContext,
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bool EnteringContext,
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const ObjCObjectPointerType *OPT) {
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for (size_t I = 0, E = Sources.size(); I < E; ++I) {
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if (TypoCorrection C = Sources[I]->CorrectTypo(Typo, LookupKind, S, SS, CCC,
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MemberContext,
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EnteringContext, OPT))
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return C;
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}
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return TypoCorrection();
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}
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bool MultiplexExternalSemaSource::MaybeDiagnoseMissingCompleteType(
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SourceLocation Loc, QualType T) {
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for (size_t I = 0, E = Sources.size(); I < E; ++I) {
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if (Sources[I]->MaybeDiagnoseMissingCompleteType(Loc, T))
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return true;
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}
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return false;
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}
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