//===-- OptionValueUInt64.h --------------------------------------*- C++ -*-===//
//
//                     The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//

#ifndef liblldb_OptionValueUInt64_h_
#define liblldb_OptionValueUInt64_h_

// C Includes
// C++ Includes
// Other libraries and framework includes
// Project includes
#include "lldb/Interpreter/OptionValue.h"

namespace lldb_private {
    
class OptionValueUInt64 : public OptionValue
{
public:
    OptionValueUInt64 () :
        OptionValue(),
        m_current_value (0),
        m_default_value (0)
    {
    }

    OptionValueUInt64 (uint64_t value) :
        OptionValue(),
        m_current_value (value),
        m_default_value (value)
    {
    }

    OptionValueUInt64 (uint64_t current_value,
                       uint64_t default_value) :
        OptionValue(),
        m_current_value (current_value),
        m_default_value (default_value)
    {
    }
    
    ~OptionValueUInt64() override
    {
    }
    
    //---------------------------------------------------------------------
    // Decode a uint64_t from "value_cstr" return a OptionValueUInt64 object
    // inside of a lldb::OptionValueSP object if all goes well. If the 
    // string isn't a uint64_t value or any other error occurs, return an 
    // empty lldb::OptionValueSP and fill error in with the correct stuff.
    //---------------------------------------------------------------------
    static lldb::OptionValueSP
    Create (const char *value_cstr, Error &error);
    //---------------------------------------------------------------------
    // Virtual subclass pure virtual overrides
    //---------------------------------------------------------------------
    
    OptionValue::Type
    GetType() const override
    {
        return eTypeUInt64;
    }
    
    void
    DumpValue(const ExecutionContext *exe_ctx, Stream &strm, uint32_t dump_mask) override;
    
    Error
    SetValueFromString(llvm::StringRef value,
		       VarSetOperationType op = eVarSetOperationAssign) override;
    
    bool
    Clear() override
    {
        m_current_value = m_default_value;
        m_value_was_set = false;
        return true;
    }
    
    lldb::OptionValueSP
    DeepCopy() const override;
    
    //---------------------------------------------------------------------
    // Subclass specific functions
    //---------------------------------------------------------------------
    
    const uint64_t &
    operator = (uint64_t value)
    {
        m_current_value = value;
        return m_current_value;
    }

    operator uint64_t () const
    {
        return m_current_value;
    }

    uint64_t
    GetCurrentValue() const
    {
        return m_current_value;
    }
    
    uint64_t
    GetDefaultValue() const
    {
        return m_default_value;
    }
    
    void
    SetCurrentValue (uint64_t value)
    {
        m_current_value = value;
    }
    
    void
    SetDefaultValue (uint64_t value)
    {
        m_default_value = value;
    }
    
protected:
    uint64_t m_current_value;
    uint64_t m_default_value;
};

} // namespace lldb_private

#endif // liblldb_OptionValueUInt64_h_
