tetrees/Plugins/Wwise/ThirdParty/include/AK/WwiseAuthoringAPI/AkVariantBase.h

/*******************************************************************************
The content of this file includes portions of the AUDIOKINETIC Wwise Technology
released in source code form as part of the SDK installer package.

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Licensees holding valid commercial licenses to the AUDIOKINETIC Wwise Technology
may use this file in accordance with the end user license agreement provided
with the software or, alternatively, in accordance with the terms contained in a
written agreement between you and Audiokinetic Inc.

Apache License Usage

Alternatively, this file may be used under the Apache License, Version 2.0 (the
"Apache License"); you may not use this file except in compliance with the
Apache License. You may obtain a copy of the Apache License at
http://www.apache.org/licenses/LICENSE-2.0.

Unless required by applicable law or agreed to in writing, software distributed
under the Apache License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES
OR CONDITIONS OF ANY KIND, either express or implied. See the Apache License for
the specific language governing permissions and limitations under the License.

  Copyright (c) 2023 Audiokinetic Inc.
*******************************************************************************/

#pragma once

#include <stdint.h>
#include <string>

#if (defined(_HAS_CXX17) && _HAS_CXX17)
#include <string_view>
#endif

#include "AkGuid.h"

#include <AK/SoundEngine/Common/AkTypes.h>

namespace AK
{
	namespace WwiseAuthoringAPI
	{
		enum AkVariantTypeBase
		{
			AkVariantType_none = 0,

			AkVariantType_uint8,
			AkVariantType_uint16,
			AkVariantType_uint32,
			AkVariantType_uint64,

			AkVariantType_int8,
			AkVariantType_int16,
			AkVariantType_int32,
			AkVariantType_int64,

			AkVariantType_real32,
			AkVariantType_real64,

			AkVariantType_bool,

			AkVariantType_string,
			AkVariantType_guid
		};

		// Do not use AkVariantBase directly, you must inherit from it.
		class AkVariantBase
		{
		private:

			static const int k_iExampleGuidLen = 38;

			// Constructors and destructor are protected to prevent accidental leak when deleting the class with the wrong type.
			// The class is not using a virtual destructor on purpose to avoid having a vtable.
		protected:

			inline ~AkVariantBase()
			{
				Clear();
			}

			inline AkVariantBase()
			{
				Nullify();
			}

			inline AkVariantBase(const AkVariantBase& other)
			{
				Nullify();
				CopyFrom(other);
			}

			inline AkVariantBase(AkVariantBase&& other) noexcept
			{
				Nullify();
				CopyFrom(other);
			}

			inline AkVariantBase(uint8_t in_val) { m_uint8 = in_val; m_eType = AkVariantType_uint8; }
			inline AkVariantBase(uint16_t in_val) { m_uint16 = in_val; m_eType = AkVariantType_uint16; }
			inline AkVariantBase(uint32_t in_val) { m_uint32 = in_val; m_eType = AkVariantType_uint32; }
			inline AkVariantBase(uint64_t in_val) { m_uint64 = in_val; m_eType = AkVariantType_uint64; }

			inline AkVariantBase(int8_t in_val) { m_uint8 = in_val; m_eType = AkVariantType_int8; }
			inline AkVariantBase(int16_t in_val) { m_uint16 = in_val; m_eType = AkVariantType_int16; }
			inline AkVariantBase(int32_t in_val) { m_uint32 = in_val; m_eType = AkVariantType_int32; }
			inline AkVariantBase(int64_t in_val) { m_uint64 = in_val; m_eType = AkVariantType_int64; }

			inline AkVariantBase(float in_val) { m_real32 = in_val; m_eType = AkVariantType_real32; }
			inline AkVariantBase(double in_val) { m_real64 = in_val; m_eType = AkVariantType_real64; }

			inline AkVariantBase(bool in_val) { m_boolean = in_val; m_eType = AkVariantType_bool; }

			inline AkVariantBase(const AkGuid& in_val)
			{
				m_data = new AkGuid();
				memcpy(m_data, &in_val, sizeof(AkGuid));
				m_eType = AkVariantType_guid;
			}

#ifdef GUID_DEFINED
			inline AkVariantBase(const GUID& in_val)
			{
				m_data = new AkGuid();
				memcpy(m_data, &in_val, sizeof(AkGuid));
				m_eType = AkVariantType_guid;
			}
#endif

			inline AkVariantBase(const char* in_val)
			{
				m_data = new std::string(in_val);
				m_eType = AkVariantType_string;
			}

			inline AkVariantBase(const std::string& in_val)
				: AkVariantBase(in_val.c_str())
			{
			}

#if (defined(_HAS_CXX17) && _HAS_CXX17) || defined(AK_APPLE) || defined(AK_LINUX)
			inline AkVariantBase(const std::string_view& in_val)
			{
				m_data = new std::string(in_val);
				m_eType = AkVariantType_string;
			}			
#endif

			void Nullify()
			{
				m_uint64 = 0;
				m_eType = AkVariantType_none;
			}

		public:

			// Assignment ----------------------------------------------------------------------------

			inline AkVariantBase& operator=(const AkVariantBase& in_val)
			{
				Clear();
				CopyFrom(in_val);
				return *this;
			}

			inline AkVariantBase& operator=(const AkGuid& in_val)
			{
				Clear();
				AkGuid*guid = new AkGuid();
				memcpy(guid, &in_val, sizeof(AkGuid));
				m_eType = AkVariantType_guid;
				return *this;
			}

			inline AkVariantBase& operator=(const char* in_val)
			{
				Clear();
				m_data = new std::string(in_val);
				m_eType = AkVariantType_string;
				return *this;
			}

			inline AkVariantBase& operator=(const std::string& in_val)
			{
				Clear();
				m_data = new std::string(in_val);
				m_eType = AkVariantType_string;
				return *this;
			}

			// Helpers ----------------------------------------------------------------------------

			inline bool IsString() const
			{
				return (m_eType == AkVariantType_string);
			}

			inline bool IsGuid() const
			{
				return (m_eType == AkVariantType_guid);
			}

			const std::string& GetString() const
			{
				if (m_eType == AkVariantType_guid)
				{
					// Safeguard to prevent a crash in case a guid (and nothing else) is provided as a string to a
					// function that does not support guids (which would pass schema validation and crash here).
					static const std::string empty;
					return empty;
				}

				AKASSERT(m_eType == AkVariantType_string && "AkVariant: illegal typecast");
				return *static_cast<const std::string*>(m_data);
			}

			inline const AkGuid& GetGuid() const
			{
				AKASSERT(m_eType == AkVariantType_guid && "AkVariant: illegal typecast");
				return *static_cast<const AkGuid*>(m_data);
			}

#define _SET_VALUE( _member_, _value_, _type_ ) { \
				Clear(); \
				(_member_) = (_value_); \
				m_eType = _type_; \
				return *this; \
										}

			inline AkVariantBase& operator=(int64_t in_val)
			{
				_SET_VALUE(m_int64, in_val, AkVariantType_int64)
			}
			inline AkVariantBase& operator=(int32_t in_val)
			{
				_SET_VALUE(m_int32, in_val, AkVariantType_int32)
			}
			inline AkVariantBase& operator=(int16_t in_val)
			{
				_SET_VALUE(m_int16, in_val, AkVariantType_int16)
			}
			inline AkVariantBase& operator=(int8_t in_val)
			{
				_SET_VALUE(m_int8, in_val, AkVariantType_int8)
			}

			inline AkVariantBase& operator=(uint64_t in_val)
			{
				_SET_VALUE(m_uint64, in_val, AkVariantType_uint64)
			}
			inline AkVariantBase& operator=(uint32_t in_val)
			{
				_SET_VALUE(m_uint32, in_val, AkVariantType_uint32)
			}
			inline AkVariantBase& operator=(uint16_t in_val)
			{
				_SET_VALUE(m_uint16, in_val, AkVariantType_uint16)
			}
			inline AkVariantBase& operator=(uint8_t in_val)
			{
				_SET_VALUE(m_uint8, in_val, AkVariantType_uint8)
			}

			inline AkVariantBase& operator=(double in_val)
			{
				_SET_VALUE(m_real64, in_val, AkVariantType_real64)
			}
			inline AkVariantBase& operator=(float in_val)
			{
				_SET_VALUE(m_real32, in_val, AkVariantType_real32)
			}

			inline AkVariantBase& operator=(bool in_val)
			{
				_SET_VALUE(m_boolean, in_val, AkVariantType_bool)
			}

			inline bool operator==(const AkVariantBase& rhs) const
			{
				if (m_eType != rhs.m_eType)
					return false;

				switch (m_eType)
				{
				case AkVariantType_uint8:  return m_uint8  == rhs.m_uint8;
				case AkVariantType_uint16: return m_uint16 == rhs.m_uint16;
				case AkVariantType_uint32: return m_uint32 == rhs.m_uint32;
				case AkVariantType_uint64: return m_uint64 == rhs.m_uint64;

				case AkVariantType_int8:  return m_int8 == rhs.m_int8;
				case AkVariantType_int16: return m_int16 == rhs.m_int16;
				case AkVariantType_int32: return m_int32 == rhs.m_int32;
				case AkVariantType_int64: return m_int64 == rhs.m_int64;

				case AkVariantType_real32: return m_real32 == rhs.m_real32;
				case AkVariantType_real64: return m_real64 == rhs.m_real64;

				case AkVariantType_bool: return m_boolean == rhs.m_boolean;

				case AkVariantType_string: return GetString().compare(rhs.GetString()) == 0;
				case AkVariantType_guid: return GetGuid() == rhs.GetGuid();
				case AkVariantType_none: return true; // Both variants are empty
				default: return false; // Unknown type
				}
				return false;
			}

			inline bool operator!=(const AkVariantBase& rhs) const
			{
				return !(*this == rhs);
			}

			// Typecast ----------------------------------------------------------------------------

			inline operator bool() const
			{
				switch (m_eType)
				{
				case AkVariantType_bool: return m_boolean;
				default: break;
				}

				AKASSERT(false && "AkVariantBase: illegal typecast");
				return 0;
			}

			inline operator int64_t() const
			{
				switch (m_eType)
				{
				case AkVariantType_int8: return static_cast<int64_t>(m_int8);
				case AkVariantType_int16: return static_cast<int64_t>(m_int16);
				case AkVariantType_int32: return static_cast<int64_t>(m_int32);
				case AkVariantType_int64: return m_int64;
				default: break;
				}

				AKASSERT(false && "AkVariantBase: illegal typecast");
				return 0;
			}

#ifdef AK_LINUX
			inline operator long long() const
			{
				// Prevents conversion ambiguity when using an AkVariant parameter with GMock on Linux
				return static_cast<int64_t>(*this);
			}
#endif

			template<typename T> T ToEnum() const
			{
				return static_cast<T>(static_cast<int32_t>(*this));
			}

			inline operator int32_t() const
			{
				switch (m_eType)
				{
				case AkVariantType_int8: return static_cast<int32_t>(m_int8);
				case AkVariantType_int16: return static_cast<int32_t>(m_int16);
				case AkVariantType_int32: return m_int32;
				case AkVariantType_uint8: return static_cast<int32_t>(m_uint8);
				case AkVariantType_uint16: return static_cast<int32_t>(m_uint16);
				default: break;
				}

				AKASSERT(false && "AkVariantBase: illegal typecast");
				return 0;
			}

			inline operator uint32_t() const
			{
				switch (m_eType)
				{
				case AkVariantType_int8: return static_cast<uint32_t>(m_int8);
				case AkVariantType_int16: return static_cast<uint32_t>(m_int16);
				case AkVariantType_int32: return static_cast<uint32_t>(m_int32);
				case AkVariantType_uint8: return static_cast<uint32_t>(m_uint8);
				case AkVariantType_uint16: return static_cast<uint32_t>(m_uint16);
				case AkVariantType_uint32: return m_uint32;
				default: break;
				}

				AKASSERT(false && "AkVariantBase: illegal typecast");
				return 0;
			}

			inline operator uint64_t() const
			{
				switch (m_eType)
				{
				case AkVariantType_int8: return static_cast<uint64_t>(m_int8);
				case AkVariantType_int16: return static_cast<uint64_t>(m_int16);
				case AkVariantType_int32: return static_cast<uint64_t>(m_int32);
				case AkVariantType_int64: return static_cast<uint64_t>(m_int64);
				case AkVariantType_uint8: return static_cast<uint64_t>(m_uint8);
				case AkVariantType_uint16: return static_cast<uint64_t>(m_uint16);
				case AkVariantType_uint32: return static_cast<uint64_t>(m_uint32);
				case AkVariantType_uint64: return m_uint64;
				default: break;
				}

				AKASSERT(false && "AkVariantBase: illegal typecast");
				return 0;
			}

			inline operator double() const
			{
				switch (m_eType)
				{
				case AkVariantType_int8: return static_cast<double>(m_int8);
				case AkVariantType_int16: return static_cast<double>(m_int16);
				case AkVariantType_int32: return static_cast<double>(m_int32);
				case AkVariantType_int64: return static_cast<double>(m_int64);

				case AkVariantType_uint8: return static_cast<double>(m_uint8);
				case AkVariantType_uint16: return static_cast<double>(m_uint16);
				case AkVariantType_uint32: return static_cast<double>(m_uint32);
				case AkVariantType_uint64: return static_cast<double>(m_uint64);

				case AkVariantType_real32: return static_cast<double>(m_real32);
				case AkVariantType_real64: return m_real64;

				default: break;
				}

				AKASSERT(false && "AkVariantBase: illegal typecast");
				return 0;
			}

			inline operator AkGuid() const
			{
				if (m_eType == AkVariantType_guid)
					return *static_cast<const AkGuid*>(m_data);

				AKASSERT(false && "AkVariantBase: illegal typecast");
				return AkGuid();
			}

			inline operator std::string() const
			{
				if (m_eType == AkVariantType_string)
					return *static_cast<const std::string*>(m_data);

				AKASSERT(false && "AkVariantBase: illegal typecast");
				return std::string();
			}

			// Helpers ----------------------------------------------------------------------------

			inline bool IsNumber() const
			{
				return (m_eType >= AkVariantType_int8 && m_eType <= AkVariantType_int64)
					|| (m_eType >= AkVariantType_uint8 && m_eType <= AkVariantType_uint64)
					|| (m_eType >= AkVariantType_real32 && m_eType <= AkVariantType_real64);
			}

			inline bool IsEmpty() const
			{
				return (m_eType == AkVariantType_none);
			}

			inline bool IsBool() const
			{
				return (m_eType == AkVariantType_bool);
			}

		private:

			static inline uint8_t CharToUInt(char c)
			{
				if (c >= '0' && c <= '9')
					return (uint8_t)(c - '0');
				else if (c >= 'a' && c <= 'f')
					return (uint8_t)(c - 'a') + 10;
				else if (c >= 'A' && c <= 'F')
					return (uint8_t)(c - 'A') + 10;
				else
					return (uint8_t)-1;
			}

			static inline char UIntToChar(uint8_t by)
			{
				if (by < 0xa)
					return '0' + by;
				else
					return 'A' + (by - 10);
			}

		public:

			static bool StrToAkGuid(const std::string& in_str, AkGuid& out_guid)
			{
				const char* psz = in_str.c_str();
				const size_t len = strlen(psz);

				// GUID must have format: 01234567-ABCD-0123-abcd-01234567ABCD, with MANDATORY brackets around
				if (len != k_iExampleGuidLen)
					return false;

				const bool brackets = psz[0] == '{' && psz[len - 1] == '}';
				if (!brackets)
					return false;

				psz += 1;

				// Note: we must convert the string into this struct
				//       uint32_t data1;
				//		 uint16_t data2;
				//		 uint16_t data3;
				//		 uint8_t  data4[8];
				// We only support little endian for now!

				uint8_t* pby = (uint8_t*)&out_guid;

				// Convert into uint32
				for (int i = 0; i < 4; i++) // 01234567
				{
					uint8_t u1 = CharToUInt(*psz++);
					uint8_t u2 = CharToUInt(*psz++);
					if (u1 == (uint8_t)-1 || u2 == (uint8_t)-1)
						return false;
					pby[3 - i] = (u1 << 4) | u2; // store backward as little endian
				}

				if (*psz != '-')
					return false;

				++psz; // -
				pby += 4;

				// Convert into uint16
				for (int i = 0; i < 2; i++) // ABCD
				{
					uint8_t u1 = CharToUInt(*psz++);
					uint8_t u2 = CharToUInt(*psz++);
					if (u1 == (uint8_t)-1 || u2 == (uint8_t)-1)
						return false;
					pby[1 - i] = (u1 << 4) | u2;
				}

				if (*psz != '-')
					return false;

				++psz; // -
				pby += 2;

				// Convert into uint16
				for (int i = 0; i < 2; i++) // 0123
				{
					uint8_t u1 = CharToUInt(*psz++);
					uint8_t u2 = CharToUInt(*psz++);
					if (u1 == (uint8_t)-1 || u2 == (uint8_t)-1)
						return false;
					pby[1 - i] = (u1 << 4) | u2;
				}

				if (*psz != '-')
					return false;

				++psz; // -
				pby += 2;

				// Convert into uint8[2]
				for (int i = 0; i < 2; i++) // abcd
				{
					uint8_t u1 = CharToUInt(*psz++);
					uint8_t u2 = CharToUInt(*psz++);
					if (u1 == (uint8_t)-1 || u2 == (uint8_t)-1)
						return false;
					*pby++ = (u1 << 4) | u2;
				}

				if (*psz != '-')
					return false;

				++psz; // -

				// Convert into uint8[6]
				for (int i = 0; i < 6; i++) // 01234567ABCD
				{
					uint8_t u1 = CharToUInt(*psz++);
					uint8_t u2 = CharToUInt(*psz++);
					if (u1 == (uint8_t)-1 || u2 == (uint8_t)-1)
						return false;
					*pby++ = (u1 << 4) | u2;
				}

				return true;
			}

			static void AkGuidToStr(const AkGuid& in_guid, std::string& out_str)
			{
				uint8_t* pby = (uint8_t*)&in_guid;

				if (out_str.size() < (k_iExampleGuidLen))
					out_str.resize(k_iExampleGuidLen);

				char* psz = (char*)&out_str[0];

				*psz++ = '{';

				// Note: we must convert the string into this struct
				//       uint32_t data1;
				//		 uint16_t data2;
				//		 uint16_t data3;
				//		 uint8_t  data4[8];
				// We only support little endian for now!

				// Convert uint32
				for (int i = 0; i < 4; ++i)
				{
					*psz++ = UIntToChar(pby[3 - i] >> 4);
					*psz++ = UIntToChar(pby[3 - i] & 0xf);
				}
				pby += 4;
				*psz++ = '-';

				// Convert uint16
				for (int i = 0; i < 2; ++i)
				{
					*psz++ = UIntToChar(pby[1 - i] >> 4);
					*psz++ = UIntToChar(pby[1 - i] & 0xf);
				}
				pby += 2;
				*psz++ = '-';

				// Convert uint16
				for (int i = 0; i < 2; ++i)
				{
					*psz++ = UIntToChar(pby[1 - i] >> 4);
					*psz++ = UIntToChar(pby[1 - i] & 0xf);
				}
				pby += 2;
				*psz++ = '-';

				// Convert uint8[2]
				for (int i = 0; i < 2; ++i)
				{
					*psz++ = UIntToChar(pby[i] >> 4);
					*psz++ = UIntToChar(pby[i] & 0xf);
				}
				pby += 2;
				*psz++ = '-';

				// Convert uint8[6]
				for (int i = 0; i < 6; ++i)
				{
					*psz++ = UIntToChar(pby[i] >> 4);
					*psz++ = UIntToChar(pby[i] & 0xf);
				}

				*psz++ = '}';
			}

		private:

			void Clear()
			{
				switch (m_eType)
				{
				case AkVariantType_string:
					delete static_cast<std::string*>(m_data);
					break;
				case AkVariantType_guid:
					delete static_cast<AkGuid*>(m_data);
					break;
				}
			}

			void CopyFrom(const AkVariantBase& in_var)
			{
				m_eType = in_var.m_eType;

				switch (in_var.m_eType)
				{
				case AkVariantType_uint8:
					m_uint8 = in_var.m_uint8;
					break;
				case AkVariantType_uint16:
					m_uint16 = in_var.m_uint16;
					break;
				case AkVariantType_uint32:
					m_uint32 = in_var.m_uint32;
					break;
				case AkVariantType_uint64:
					m_uint64 = in_var.m_uint64;
					break;
				case AkVariantType_int8:
					m_int8 = in_var.m_int8;
					break;
				case AkVariantType_int16:
					m_int16 = in_var.m_int16;
					break;
				case AkVariantType_int32:
					m_int32 = in_var.m_int32;
					break;
				case AkVariantType_int64:
					m_int64 = in_var.m_int64;
					break;
				case AkVariantType_real32:
					m_real32 = in_var.m_real32;
					break;
				case AkVariantType_real64:
					m_real64 = in_var.m_real64;
					break;
				case AkVariantType_bool:
					m_boolean = in_var.m_boolean;
					break;
				case AkVariantType_string:
					m_data = new std::string(*static_cast<const std::string*>(in_var.m_data));
					break;
				case AkVariantType_guid:
					m_data = new AkGuid();
					memcpy(m_data, in_var.m_data, sizeof(AkGuid));
					break;
				default:
					break;
				}
			}

		public:

			int GetType() const
			{
				return m_eType;
			}

			bool GetBoolean() const
			{
				AKASSERT(m_eType == AkVariantType_bool && "AkVariant: illegal typecast");
				return m_boolean;
			}

			int8_t GetInt8() const
			{
				AKASSERT(m_eType == AkVariantType_int8 && "AkVariant: illegal typecast");
				return m_int8;
			}

			int16_t GetInt16() const
			{
				AKASSERT(m_eType == AkVariantType_int16 && "AkVariant: illegal typecast");
				return m_int16;
			}

			int32_t GetInt32() const
			{
				AKASSERT(m_eType == AkVariantType_int32 && "AkVariant: illegal typecast");
				return m_int32;
			}

			int64_t GetInt64() const
			{
				AKASSERT(m_eType == AkVariantType_int64 && "AkVariant: illegal typecast");
				return m_int64;
			}

			uint8_t GetUInt8() const
			{
				AKASSERT(m_eType == AkVariantType_uint8 && "AkVariant: illegal typecast");
				return m_uint8;
			}

			uint16_t GetUInt16() const
			{
				AKASSERT(m_eType == AkVariantType_uint16 && "AkVariant: illegal typecast");
				return m_uint16;
			}

			uint32_t GetUInt32() const
			{
				AKASSERT(m_eType == AkVariantType_uint32 && "AkVariant: illegal typecast");
				return m_uint32;
			}

			uint64_t GetUInt64() const
			{
				AKASSERT(m_eType == AkVariantType_uint64 && "AkVariant: illegal typecast");
				return m_uint64;
			}

			float GetReal32() const
			{
				AKASSERT(m_eType == AkVariantType_real32 && "AkVariant: illegal typecast");
				return m_real32;
			}

			double GetReal64() const
			{
				AKASSERT(m_eType == AkVariantType_real64 && "AkVariant: illegal typecast");
				return m_real64;
			}

			// Implicit interface supporting conversion to rapidjson. Does not require rapidjson dependencies
			// if the function is not called.
			template<typename RapidJsonValueType, typename RapidJsonAllocator, typename RapidJsonSizeType>
			bool toRapidJsonValue(RapidJsonValueType& out_rapidJson, RapidJsonAllocator& in_allocator) const
			{
				switch (m_eType)
				{
				case AkVariantType_none: out_rapidJson.SetNull(); break;

				case AkVariantType_bool: out_rapidJson.SetBool(m_boolean); break;

				case AkVariantType_int8: out_rapidJson.SetInt(m_int8); break;
				case AkVariantType_int16: out_rapidJson.SetInt(m_int16); break;
				case AkVariantType_int32: out_rapidJson.SetInt(m_int32); break;
				case AkVariantType_int64: out_rapidJson.SetInt64(m_int64); break;

				case AkVariantType_uint8: out_rapidJson.SetUint(m_uint8); break;
				case AkVariantType_uint16: out_rapidJson.SetUint(m_uint16); break;
				case AkVariantType_uint32: out_rapidJson.SetUint(m_uint32); break;
				case AkVariantType_uint64: out_rapidJson.SetUint64(m_uint64); break;

				case AkVariantType_real32: out_rapidJson.SetDouble(m_real32); break;
				case AkVariantType_real64: out_rapidJson.SetDouble(m_real64); break;

				case AkVariantType_guid:
				{
					std::string str;
					AkVariantBase::AkGuidToStr(*static_cast<const AkGuid*>(m_data), str);
					out_rapidJson.SetString(str.c_str(), static_cast<RapidJsonSizeType>(str.length()), in_allocator);
				}
				break;

				default:
					return false;
				}

				return true;
			}

		protected:

			int m_eType;

			union
			{
				uint8_t m_uint8;
				uint16_t m_uint16;
				uint32_t m_uint32;
				uint64_t m_uint64;

				int8_t m_int8;
				int16_t m_int16;
				int32_t m_int32;
				int64_t m_int64;

				float m_real32;
				double m_real64;

				bool m_boolean;

				void* m_data;
			};
		};
	}
}