llvm-project/clang-tools-extra/clangd/Logger.h

49 lines
1.3 KiB
C++

//===--- Logger.h - Logger interface for clangd ------------------*- 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_LOGGER_H
#define LLVM_CLANG_TOOLS_EXTRA_CLANGD_LOGGER_H
#include "llvm/ADT/Twine.h"
namespace clang {
namespace clangd {
/// Main logging function.
/// Logs messages to a global logger, which can be set up by LoggingSesssion.
/// If no logger is registered, writes to llvm::errs().
void log(const llvm::Twine &Message);
/// Interface to allow custom logging in clangd.
class Logger {
public:
virtual ~Logger() = default;
/// Implementations of this method must be thread-safe.
virtual void log(const llvm::Twine &Message) = 0;
};
/// Only one LoggingSession can be active at a time.
class LoggingSession {
public:
LoggingSession(clangd::Logger &Instance);
~LoggingSession();
LoggingSession(LoggingSession &&) = delete;
LoggingSession &operator=(LoggingSession &&) = delete;
LoggingSession(LoggingSession const &) = delete;
LoggingSession &operator=(LoggingSession const &) = delete;
};
} // namespace clangd
} // namespace clang
#endif