forked from OSchip/llvm-project
60 lines
1.8 KiB
C++
60 lines
1.8 KiB
C++
//===--- Ref.cpp -------------------------------------------------*- C++-*-===//
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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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#include "Ref.h"
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namespace clang {
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namespace clangd {
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llvm::raw_ostream &operator<<(llvm::raw_ostream &OS, RefKind K) {
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if (K == RefKind::Unknown)
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return OS << "Unknown";
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static const std::vector<const char *> Messages = {"Decl", "Def", "Ref"};
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bool VisitedOnce = false;
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for (unsigned I = 0; I < Messages.size(); ++I) {
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if (static_cast<uint8_t>(K) & 1u << I) {
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if (VisitedOnce)
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OS << ", ";
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OS << Messages[I];
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VisitedOnce = true;
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}
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}
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return OS;
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}
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llvm::raw_ostream &operator<<(llvm::raw_ostream &OS, const Ref &R) {
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return OS << R.Location << ":" << R.Kind;
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}
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void RefSlab::Builder::insert(const SymbolID &ID, const Ref &S) {
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auto &M = Refs[ID];
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if (M.count(S))
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return;
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Ref R = S;
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R.Location.FileURI =
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UniqueStrings.save(R.Location.FileURI).data();
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M.insert(std::move(R));
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}
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RefSlab RefSlab::Builder::build() && {
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// We can reuse the arena, as it only has unique strings and we need them all.
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// Reallocate refs on the arena to reduce waste and indirections when reading.
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std::vector<std::pair<SymbolID, llvm::ArrayRef<Ref>>> Result;
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Result.reserve(Refs.size());
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size_t NumRefs = 0;
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for (auto &Sym : Refs) {
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std::vector<Ref> SymRefs(Sym.second.begin(), Sym.second.end());
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NumRefs += SymRefs.size();
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Result.emplace_back(Sym.first, llvm::ArrayRef<Ref>(SymRefs).copy(Arena));
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}
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return RefSlab(std::move(Result), std::move(Arena), NumRefs);
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}
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} // namespace clangd
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} // namespace clang
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