forked from OSchip/llvm-project
44 lines
1.3 KiB
C++
44 lines
1.3 KiB
C++
//===--- CompileArgsCache.h -------------------------------------*- 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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#ifndef LLVM_CLANG_TOOLS_EXTRA_CLANGD_COMPILEARGSCACHE_H
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#define LLVM_CLANG_TOOLS_EXTRA_CLANGD_COMPILEARGSCACHE_H
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#include "GlobalCompilationDatabase.h"
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#include "Path.h"
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#include "clang/Tooling/CompilationDatabase.h"
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namespace clang {
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namespace clangd {
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/// A helper class used by ClangdServer to get compile commands from CDB.
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/// Also caches CompileCommands produced by compilation database on per-file
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/// basis. This avoids queries to CDB that can be much more expensive than a
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/// table lookup.
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class CompileArgsCache {
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public:
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CompileArgsCache(GlobalCompilationDatabase &CDB, Path ResourceDir);
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/// Gets compile command for \p File from cache or CDB if it's not in the
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/// cache.
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tooling::CompileCommand getCompileCommand(PathRef File);
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/// Removes a cache entry for \p File, if it's present in the cache.
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void invalidate(PathRef File);
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private:
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GlobalCompilationDatabase &CDB;
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const Path ResourceDir;
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llvm::StringMap<tooling::CompileCommand> Cached;
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};
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} // namespace clangd
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} // namespace clang
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#endif
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