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//===--- Ref.cpp -------------------------------------------------*- C++-*-===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
#include "Ref.h"
namespace clang {
namespace clangd {
llvm::raw_ostream &operator<<(llvm::raw_ostream &OS, RefKind K) {
if (K == RefKind::Unknown)
return OS << "Unknown";
static const std::vector<const char *> Messages = {"Decl", "Def", "Ref"};
bool VisitedOnce = false;
for (unsigned I = 0; I < Messages.size(); ++I) {
if (static_cast<uint8_t>(K) & 1u << I) {
if (VisitedOnce)
OS << ", ";
OS << Messages[I];
VisitedOnce = true;
}
}
return OS;
}
llvm::raw_ostream &operator<<(llvm::raw_ostream &OS, const Ref &R) {
return OS << R.Location << ":" << R.Kind;
}
void RefSlab::Builder::insert(const SymbolID &ID, const Ref &S) {
auto &M = Refs[ID];
if (M.count(S))
return;
Ref R = S;
R.Location.FileURI =
UniqueStrings.save(R.Location.FileURI).data();
M.insert(std::move(R));
}
RefSlab RefSlab::Builder::build() && {
// We can reuse the arena, as it only has unique strings and we need them all.
// Reallocate refs on the arena to reduce waste and indirections when reading.
std::vector<std::pair<SymbolID, llvm::ArrayRef<Ref>>> Result;
Result.reserve(Refs.size());
size_t NumRefs = 0;
for (auto &Sym : Refs) {
std::vector<Ref> SymRefs(Sym.second.begin(), Sym.second.end());
NumRefs += SymRefs.size();
Result.emplace_back(Sym.first, llvm::ArrayRef<Ref>(SymRefs).copy(Arena));
}
return RefSlab(std::move(Result), std::move(Arena), NumRefs);
}
} // namespace clangd
} // namespace clang
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