Author: ibiryukov
Date: Thu Jan 25 06:29:29 2018
New Revision: 323423
URL: http://llvm.org/viewvc/llvm-project?rev=323423&view=rev
Log:
[clangd] Added forgotten files
Added:
clang-tools-extra/trunk/clangd/CompileArgsCache.cpp
clang-tools-extra/trunk/clangd/CompileArgsCache.h
Added: clang-tools-extra/trunk/clangd/CompileArgsCache.cpp
URL:
http://llvm.org/viewvc/llvm-project/clang-tools-extra/trunk/clangd/CompileArgsCache.cpp?rev=323423&view=auto
==============================================================================
--- clang-tools-extra/trunk/clangd/CompileArgsCache.cpp (added)
+++ clang-tools-extra/trunk/clangd/CompileArgsCache.cpp Thu Jan 25 06:29:29 2018
@@ -0,0 +1,44 @@
+//===--- CompileArgsCache.cpp - Main clangd server code ------------------===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===---------------------------------------------------------------------===//
+
+#include "CompileArgsCache.h"
+
+namespace clang {
+namespace clangd {
+namespace {
+tooling::CompileCommand getCompileCommand(GlobalCompilationDatabase &CDB,
+ PathRef File, PathRef ResourceDir) {
+ llvm::Optional<tooling::CompileCommand> C = CDB.getCompileCommand(File);
+ if (!C) // FIXME: Suppress diagnostics? Let the user know?
+ C = CDB.getFallbackCommand(File);
+
+ // Inject the resource dir.
+ // FIXME: Don't overwrite it if it's already there.
+ C->CommandLine.push_back("-resource-dir=" + ResourceDir.str());
+ return std::move(*C);
+}
+} // namespace
+
+CompileArgsCache::CompileArgsCache(GlobalCompilationDatabase &CDB,
+ Path ResourceDir)
+ : CDB(CDB), ResourceDir(std::move(ResourceDir)) {}
+
+tooling::CompileCommand CompileArgsCache::getCompileCommand(PathRef File) {
+ auto It = Cached.find(File);
+ if (It == Cached.end()) {
+ It = Cached.insert({File, clangd::getCompileCommand(CDB, File,
ResourceDir)})
+ .first;
+ }
+ return It->second;
+}
+
+void CompileArgsCache::invalidate(PathRef File) { Cached.erase(File); }
+
+} // namespace clangd
+} // namespace clang
Added: clang-tools-extra/trunk/clangd/CompileArgsCache.h
URL:
http://llvm.org/viewvc/llvm-project/clang-tools-extra/trunk/clangd/CompileArgsCache.h?rev=323423&view=auto
==============================================================================
--- clang-tools-extra/trunk/clangd/CompileArgsCache.h (added)
+++ clang-tools-extra/trunk/clangd/CompileArgsCache.h Thu Jan 25 06:29:29 2018
@@ -0,0 +1,43 @@
+//===--- CompileArgsCache.h -------------------------------------*- C++-*-===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===---------------------------------------------------------------------===//
+
+#ifndef LLVM_CLANG_TOOLS_EXTRA_CLANGD_COMPILEARGSCACHE_H
+#define LLVM_CLANG_TOOLS_EXTRA_CLANGD_COMPILEARGSCACHE_H
+
+#include "GlobalCompilationDatabase.h"
+#include "Path.h"
+#include "clang/Tooling/CompilationDatabase.h"
+
+namespace clang {
+namespace clangd {
+
+/// A helper class used by ClangdServer to get compile commands from CDB.
+/// Also caches CompileCommands produced by compilation database on per-file
+/// basis. This avoids queries to CDB that can be much more expensive than a
+/// table lookup.
+class CompileArgsCache {
+public:
+ CompileArgsCache(GlobalCompilationDatabase &CDB, Path ResourceDir);
+
+ /// Gets compile command for \p File from cache or CDB if it's not in the
+ /// cache.
+ tooling::CompileCommand getCompileCommand(PathRef File);
+
+ /// Removes a cache entry for \p File, if it's present in the cache.
+ void invalidate(PathRef File);
+
+private:
+ GlobalCompilationDatabase &CDB;
+ const Path ResourceDir;
+ llvm::StringMap<tooling::CompileCommand> Cached;
+};
+
+} // namespace clangd
+} // namespace clang
+#endif
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