//===-- OptionValueEnumeration.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_OptionValueEnumeration_h_
#define liblldb_OptionValueEnumeration_h_

// C Includes
// C++ Includes
// Other libraries and framework includes
// Project includes
#include "lldb/Core/ConstString.h"
#include "lldb/Core/Error.h"
#include "lldb/Core/Stream.h"
#include "lldb/Core/StreamString.h"
#include "lldb/Core/UniqueCStringMap.h"
#include "lldb/Interpreter/OptionValue.h"

namespace lldb_private {

class OptionValueEnumeration : public OptionValue
{
public:
    typedef int64_t enum_type;
    struct EnumeratorInfo
    {
        enum_type value;
        const char *description;
    };
    typedef UniqueCStringMap<EnumeratorInfo> EnumerationMap;
    typedef EnumerationMap::Entry EnumerationMapEntry;

    OptionValueEnumeration (const OptionEnumValueElement *enumerators, enum_type value);
    
    ~OptionValueEnumeration() override;
    
    //---------------------------------------------------------------------
    // Virtual subclass pure virtual overrides
    //---------------------------------------------------------------------
    
    OptionValue::Type
    GetType() const override
    {
        return eTypeEnum;
    }
    
    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;
    
    size_t
    AutoComplete(CommandInterpreter &interpreter,
		 const char *s,
		 int match_start_point,
		 int max_return_elements,
		 bool &word_complete,
		 StringList &matches) override;

    //---------------------------------------------------------------------
    // Subclass specific functions
    //---------------------------------------------------------------------
    
    enum_type
    operator = (enum_type value)
    {
        m_current_value = value;
        return m_current_value;
    }
    
    enum_type
    GetCurrentValue() const
    {
        return m_current_value;
    }
    
    enum_type
    GetDefaultValue() const
    {
        return m_default_value;
    }
    
    void
    SetCurrentValue (enum_type value)
    {
        m_current_value = value;
    }
    
    void
    SetDefaultValue (enum_type value)
    {
        m_default_value = value;
    }
    
protected:
    void
    SetEnumerations (const OptionEnumValueElement *enumerators);

    enum_type m_current_value;
    enum_type m_default_value;
    EnumerationMap m_enumerations;
};

} // namespace lldb_private

#endif // liblldb_OptionValueEnumeration_h_
