Line data    Source code

       1             : //===--- CompileArgsCache.h -------------------------------------*- C++-*-===//
       2             : //
       3             : //                     The LLVM Compiler Infrastructure
       4             : //
       5             : // This file is distributed under the University of Illinois Open Source
       6             : // License. See LICENSE.TXT for details.
       7             : //
       8             : //===---------------------------------------------------------------------===//
       9             : 
      10             : #ifndef LLVM_CLANG_TOOLS_EXTRA_CLANGD_COMPILEARGSCACHE_H
      11             : #define LLVM_CLANG_TOOLS_EXTRA_CLANGD_COMPILEARGSCACHE_H
      12             : 
      13             : #include "GlobalCompilationDatabase.h"
      14             : #include "Path.h"
      15             : #include "clang/Tooling/CompilationDatabase.h"
      16             : 
      17             : namespace clang {
      18             : namespace clangd {
      19             : 
      20             : /// A helper class used by ClangdServer to get compile commands from CDB.
      21             : /// Also caches CompileCommands produced by compilation database on per-file
      22             : /// basis. This avoids queries to CDB that can be much more expensive than a
      23             : /// table lookup.
      24           0 : class CompileArgsCache {
      25             : public:
      26             :   CompileArgsCache(GlobalCompilationDatabase &CDB, Path ResourceDir);
      27             : 
      28             :   /// Gets compile command for \p File from cache or CDB if it's not in the
      29             :   /// cache.
      30             :   tooling::CompileCommand getCompileCommand(PathRef File);
      31             : 
      32             :   /// Removes a cache entry for \p File, if it's present in the cache.
      33             :   void invalidate(PathRef File);
      34             : 
      35             : private:
      36             :   GlobalCompilationDatabase &CDB;
      37             :   const Path ResourceDir;
      38             :   llvm::StringMap<tooling::CompileCommand> Cached;
      39             : };
      40             : 
      41             : } // namespace clangd
      42             : } // namespace clang
      43             : #endif