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//===-- CommandHistory.h ----------------------------------------*- C++ -*-===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
#ifndef liblldb_CommandHistory_h_
#define liblldb_CommandHistory_h_
#include <mutex>
#include <string>
#include <vector>
#include "lldb/Utility/Stream.h"
#include "lldb/lldb-private.h"
namespace lldb_private {
class CommandHistory {
public:
CommandHistory();
~CommandHistory();
size_t GetSize() const;
bool IsEmpty() const;
llvm::Optional<llvm::StringRef> FindString(llvm::StringRef input_str) const;
llvm::StringRef GetStringAtIndex(size_t idx) const;
llvm::StringRef operator[](size_t idx) const;
llvm::StringRef GetRecentmostString() const;
void AppendString(llvm::StringRef str, bool reject_if_dupe = true);
void Clear();
void Dump(Stream &stream, size_t start_idx = 0,
size_t stop_idx = SIZE_MAX) const;
static const char g_repeat_char = '!';
private:
DISALLOW_COPY_AND_ASSIGN(CommandHistory);
typedef std::vector<std::string> History;
mutable std::recursive_mutex m_mutex;
History m_history;
};
} // namespace lldb_private
#endif // liblldb_CommandHistory_h_
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