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https://github.com/Gericom/teak-llvm.git
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2eb6b4038a
Summary: This was added in D34947 to support YCM, but YCM actually provides *all* args, and this was never actually used. Meanwhile, we grew another extension that allows specifying all args. I did find one user of this extension: https://github.com/thomasjo/atom-ide-cpp. I'll reach out, there are multiple good alternatives: - compile_commands.txt can serve the same purpose as .clang_complete there - we can add an extension to support setting the fallback command Reviewers: ilya-biryukov Subscribers: ioeric, MaskRay, jkorous, arphaman, kadircet, cfe-commits Differential Revision: https://reviews.llvm.org/D53641 llvm-svn: 345969
103 lines
3.5 KiB
C++
103 lines
3.5 KiB
C++
//===--- GlobalCompilationDatabase.cpp ---------------------------*- 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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#include "GlobalCompilationDatabase.h"
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#include "Logger.h"
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#include "clang/Tooling/CompilationDatabase.h"
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#include "llvm/Support/FileSystem.h"
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#include "llvm/Support/Path.h"
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using namespace llvm;
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namespace clang {
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namespace clangd {
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tooling::CompileCommand
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GlobalCompilationDatabase::getFallbackCommand(PathRef File) const {
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std::vector<std::string> Argv = {"clang"};
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// Clang treats .h files as C by default, resulting in unhelpful diagnostics.
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// Parsing as Objective C++ is friendly to more cases.
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if (sys::path::extension(File) == ".h")
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Argv.push_back("-xobjective-c++-header");
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Argv.push_back(File);
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return tooling::CompileCommand(sys::path::parent_path(File),
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sys::path::filename(File), std::move(Argv),
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/*Output=*/"");
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}
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DirectoryBasedGlobalCompilationDatabase::
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DirectoryBasedGlobalCompilationDatabase(Optional<Path> CompileCommandsDir)
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: CompileCommandsDir(std::move(CompileCommandsDir)) {}
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DirectoryBasedGlobalCompilationDatabase::
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~DirectoryBasedGlobalCompilationDatabase() = default;
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Optional<tooling::CompileCommand>
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DirectoryBasedGlobalCompilationDatabase::getCompileCommand(PathRef File) const {
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if (auto CDB = getCDBForFile(File)) {
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auto Candidates = CDB->getCompileCommands(File);
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if (!Candidates.empty())
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return std::move(Candidates.front());
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} else {
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log("Failed to find compilation database for {0}", File);
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}
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return None;
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}
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tooling::CompilationDatabase *
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DirectoryBasedGlobalCompilationDatabase::getCDBInDirLocked(PathRef Dir) const {
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// FIXME(ibiryukov): Invalidate cached compilation databases on changes
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auto CachedIt = CompilationDatabases.find(Dir);
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if (CachedIt != CompilationDatabases.end())
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return CachedIt->second.get();
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std::string Error = "";
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auto CDB = tooling::CompilationDatabase::loadFromDirectory(Dir, Error);
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auto Result = CDB.get();
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CompilationDatabases.insert(std::make_pair(Dir, std::move(CDB)));
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return Result;
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}
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tooling::CompilationDatabase *
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DirectoryBasedGlobalCompilationDatabase::getCDBForFile(PathRef File) const {
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namespace path = sys::path;
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assert((path::is_absolute(File, path::Style::posix) ||
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path::is_absolute(File, path::Style::windows)) &&
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"path must be absolute");
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std::lock_guard<std::mutex> Lock(Mutex);
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if (CompileCommandsDir)
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return getCDBInDirLocked(*CompileCommandsDir);
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for (auto Path = path::parent_path(File); !Path.empty();
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Path = path::parent_path(Path))
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if (auto CDB = getCDBInDirLocked(Path))
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return CDB;
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return nullptr;
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}
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Optional<tooling::CompileCommand>
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InMemoryCompilationDb::getCompileCommand(PathRef File) const {
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std::lock_guard<std::mutex> Lock(Mutex);
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auto It = Commands.find(File);
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if (It == Commands.end())
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return None;
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return It->second;
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}
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bool InMemoryCompilationDb::setCompilationCommandForFile(
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PathRef File, tooling::CompileCommand CompilationCommand) {
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std::unique_lock<std::mutex> Lock(Mutex);
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auto ItInserted = Commands.insert(std::make_pair(File, CompilationCommand));
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if (ItInserted.second)
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return true;
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ItInserted.first->setValue(std::move(CompilationCommand));
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return false;
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}
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} // namespace clangd
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} // namespace clang
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