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//===--- ClangdLSPServer.h - LSP server --------------------------*- 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_CLANGDLSPSERVER_H
#define LLVM_CLANG_TOOLS_EXTRA_CLANGD_CLANGDLSPSERVER_H
#include "ClangdServer.h"
#include "DraftStore.h"
#include "FindSymbols.h"
#include "GlobalCompilationDatabase.h"
#include "Path.h"
#include "Protocol.h"
#include "ProtocolHandlers.h"
#include "clang/Tooling/Core/Replacement.h"
#include "llvm/ADT/Optional.h"
namespace clang {
namespace clangd {
class JSONOutput;
class SymbolIndex;
/// This class provides implementation of an LSP server, glueing the JSON
/// dispatch and ClangdServer together.
class ClangdLSPServer : private DiagnosticsConsumer, private ProtocolCallbacks {
public:
/// If \p CompileCommandsDir has a value, compile_commands.json will be
/// loaded only from \p CompileCommandsDir. Otherwise, clangd will look
/// for compile_commands.json in all parent directories of each file.
ClangdLSPServer(JSONOutput &Out, const clangd::CodeCompleteOptions &CCOpts,
llvm::Optional<Path> CompileCommandsDir,
const ClangdServer::Options &Opts);
/// Run LSP server loop, receiving input for it from \p In. \p In must be
/// opened in binary mode. Output will be written using Out variable passed to
/// class constructor. This method must not be executed more than once for
/// each instance of ClangdLSPServer.
///
/// \return Whether we received a 'shutdown' request before an 'exit' request.
bool run(std::FILE *In,
JSONStreamStyle InputStyle = JSONStreamStyle::Standard);
private:
// Implement DiagnosticsConsumer.
void onDiagnosticsReady(PathRef File, std::vector<Diag> Diagnostics) override;
// Implement ProtocolCallbacks.
void onInitialize(InitializeParams &Params) override;
void onShutdown(ShutdownParams &Params) override;
void onExit(ExitParams &Params) override;
void onDocumentDidOpen(DidOpenTextDocumentParams &Params) override;
void onDocumentDidChange(DidChangeTextDocumentParams &Params) override;
void onDocumentDidClose(DidCloseTextDocumentParams &Params) override;
void
onDocumentOnTypeFormatting(DocumentOnTypeFormattingParams &Params) override;
void
onDocumentRangeFormatting(DocumentRangeFormattingParams &Params) override;
void onDocumentFormatting(DocumentFormattingParams &Params) override;
void onDocumentSymbol(DocumentSymbolParams &Params) override;
void onCodeAction(CodeActionParams &Params) override;
void onCompletion(TextDocumentPositionParams &Params) override;
void onSignatureHelp(TextDocumentPositionParams &Params) override;
void onGoToDefinition(TextDocumentPositionParams &Params) override;
void onSwitchSourceHeader(TextDocumentIdentifier &Params) override;
void onDocumentHighlight(TextDocumentPositionParams &Params) override;
void onFileEvent(DidChangeWatchedFilesParams &Params) override;
void onCommand(ExecuteCommandParams &Params) override;
void onWorkspaceSymbol(WorkspaceSymbolParams &Params) override;
void onRename(RenameParams &Parames) override;
void onHover(TextDocumentPositionParams &Params) override;
void onChangeConfiguration(DidChangeConfigurationParams &Params) override;
std::vector<Fix> getFixes(StringRef File, const clangd::Diagnostic &D);
/// Forces a reparse of all currently opened files. As a result, this method
/// may be very expensive. This method is normally called when the
/// compilation database is changed.
void reparseOpenedFiles();
JSONOutput &Out;
/// Used to indicate that the 'shutdown' request was received from the
/// Language Server client.
bool ShutdownRequestReceived = false;
/// Used to indicate that the 'exit' notification was received from the
/// Language Server client.
/// It's used to break out of the LSP parsing loop.
bool IsDone = false;
std::mutex FixItsMutex;
typedef std::map<clangd::Diagnostic, std::vector<Fix>, LSPDiagnosticCompare>
DiagnosticToReplacementMap;
/// Caches FixIts per file and diagnostics
llvm::StringMap<DiagnosticToReplacementMap> FixItsMap;
// Various ClangdServer parameters go here. It's important they're created
// before ClangdServer.
DirectoryBasedGlobalCompilationDatabase NonCachedCDB;
CachingCompilationDb CDB;
RealFileSystemProvider FSProvider;
/// Options used for code completion
clangd::CodeCompleteOptions CCOpts;
/// The supported kinds of the client.
SymbolKindBitset SupportedSymbolKinds;
// Store of the current versions of the open documents.
DraftStore DraftMgr;
// Server must be the last member of the class to allow its destructor to exit
// the worker thread that may otherwise run an async callback on partially
// destructed instance of ClangdLSPServer.
ClangdServer Server;
};
} // namespace clangd
} // namespace clang
#endif
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