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to reflect the new license. We understand that people may be surprised that we're moving the header entirely to discuss the new license. We checked this carefully with the Foundation's lawyer and we believe this is the correct approach. Essentially, all code in the project is now made available by the LLVM project under our new license, so you will see that the license headers include that license only. Some of our contributors have contributed code under our old license, and accordingly, we have retained a copy of our old license notice in the top-level files in each project and repository. llvm-svn: 351636
129 lines
3.9 KiB
C++
129 lines
3.9 KiB
C++
//===- ASTImporterLookupTable.cpp - ASTImporter specific lookup -----------===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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//
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// This file defines the ASTImporterLookupTable class which implements a
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// lookup procedure for the import mechanism.
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//
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//===----------------------------------------------------------------------===//
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#include "clang/AST/ASTImporterLookupTable.h"
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#include "clang/AST/Decl.h"
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#include "clang/AST/RecursiveASTVisitor.h"
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namespace clang {
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namespace {
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struct Builder : RecursiveASTVisitor<Builder> {
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ASTImporterLookupTable <
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Builder(ASTImporterLookupTable <) : LT(LT) {}
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bool VisitNamedDecl(NamedDecl *D) {
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LT.add(D);
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return true;
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}
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bool VisitFriendDecl(FriendDecl *D) {
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if (D->getFriendType()) {
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QualType Ty = D->getFriendType()->getType();
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// FIXME Can this be other than elaborated?
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QualType NamedTy = cast<ElaboratedType>(Ty)->getNamedType();
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if (!NamedTy->isDependentType()) {
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if (const auto *RTy = dyn_cast<RecordType>(NamedTy))
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LT.add(RTy->getAsCXXRecordDecl());
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else if (const auto *SpecTy =
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dyn_cast<TemplateSpecializationType>(NamedTy)) {
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LT.add(SpecTy->getAsCXXRecordDecl());
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}
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}
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}
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return true;
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}
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// Override default settings of base.
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bool shouldVisitTemplateInstantiations() const { return true; }
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bool shouldVisitImplicitCode() const { return true; }
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};
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} // anonymous namespace
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ASTImporterLookupTable::ASTImporterLookupTable(TranslationUnitDecl &TU) {
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Builder B(*this);
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B.TraverseDecl(&TU);
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}
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void ASTImporterLookupTable::add(DeclContext *DC, NamedDecl *ND) {
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DeclList &Decls = LookupTable[DC][ND->getDeclName()];
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// Inserts if and only if there is no element in the container equal to it.
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Decls.insert(ND);
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}
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void ASTImporterLookupTable::remove(DeclContext *DC, NamedDecl *ND) {
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DeclList &Decls = LookupTable[DC][ND->getDeclName()];
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bool EraseResult = Decls.remove(ND);
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(void)EraseResult;
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assert(EraseResult == true && "Trying to remove not contained Decl");
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}
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void ASTImporterLookupTable::add(NamedDecl *ND) {
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assert(ND);
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DeclContext *DC = ND->getDeclContext()->getPrimaryContext();
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add(DC, ND);
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DeclContext *ReDC = DC->getRedeclContext()->getPrimaryContext();
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if (DC != ReDC)
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add(ReDC, ND);
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}
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void ASTImporterLookupTable::remove(NamedDecl *ND) {
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assert(ND);
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DeclContext *DC = ND->getDeclContext()->getPrimaryContext();
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remove(DC, ND);
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DeclContext *ReDC = DC->getRedeclContext()->getPrimaryContext();
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if (DC != ReDC)
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remove(ReDC, ND);
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}
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ASTImporterLookupTable::LookupResult
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ASTImporterLookupTable::lookup(DeclContext *DC, DeclarationName Name) const {
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auto DCI = LookupTable.find(DC->getPrimaryContext());
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if (DCI == LookupTable.end())
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return {};
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const auto &FoundNameMap = DCI->second;
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auto NamesI = FoundNameMap.find(Name);
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if (NamesI == FoundNameMap.end())
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return {};
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return NamesI->second;
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}
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void ASTImporterLookupTable::dump(DeclContext *DC) const {
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auto DCI = LookupTable.find(DC->getPrimaryContext());
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if (DCI == LookupTable.end())
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llvm::errs() << "empty\n";
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const auto &FoundNameMap = DCI->second;
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for (const auto &Entry : FoundNameMap) {
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DeclarationName Name = Entry.first;
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llvm::errs() << "==== Name: ";
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Name.dump();
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const DeclList& List = Entry.second;
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for (NamedDecl *ND : List) {
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ND->dump();
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}
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}
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}
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void ASTImporterLookupTable::dump() const {
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for (const auto &Entry : LookupTable) {
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DeclContext *DC = Entry.first;
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StringRef Primary = DC->getPrimaryContext() ? " primary" : "";
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llvm::errs() << "== DC:" << cast<Decl>(DC) << Primary << "\n";
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dump(DC);
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}
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}
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} // namespace clang
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