ByteStream.h

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/*
 * This file is a part of the Biology project by eons LLC.
 * Biology (aka Develop Biology) is a framework for approaching software
 * development from a natural sciences perspective.
 *
 * Copyright (C) 2021 Séon O'Shannon & eons LLC
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Affero General Public License as
 * published by the Free Software Foundation, either version 3 of the
 * License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 * GNU Affero General Public License for more details.
 *
 * You should have received a copy of the GNU Affero General Public License
 * along with this program. If not, see <https://www.gnu.org/licenses/>.
 */
 
#pragma once
 
#include "bio/common/macros/AssertMacros.h"
#include "TypeName.h"
#include <cstddef>
#include <cstdlib>
#include <cstring>
 
namespace bio {
 
class ByteStream
{
public:
 ByteStream();
 
 template < typename T >
 ByteStream(T in)
 {
 Set(in);
 }
 
 ByteStream(const ByteStream& other);
 
 ~ByteStream();
 
 void operator=(const ByteStream& other);
 
 bool operator==(const ByteStream& other) const;
 
 template < typename T >
 T As()
 {
 BIO_ASSERT(Is< T >());
 T* ret;
 std::memcpy(
 ret,
 m_stream,
 sizeof(T));
 return *ret;
 }
 
 template < typename T >
 const T As() const
 {
 BIO_ASSERT(Is< T >());
 T* ret;
 std::memcpy(
 ret,
 m_stream,
 sizeof(T));
 return *ret;
 }
 
 template < typename T >
 operator T()
 {
 return As< T >();
 }
 
 template < typename T >
 operator const T() const
 {
 return As< T >();
 }
 
 template < typename T >
 void Set(T in)
 {
 m_stream = std::malloc(sizeof(T));
 std::memcpy(
 m_stream,
 &in,
 sizeof(T));
 m_size = sizeof(T);
 m_typeName = TypeName< T >();
 }
 
 void Set(const ByteStream& other);
 
 void Release();
 
 bool IsEmpty() const;
 
 template < typename T >
 bool Is() const
 {
 return sizeof(T) == m_size && TypeName< T >() == m_typeName;
 }
 
 template < typename T >
 bool Is(const T& t) const
 {
 return Is< T >();
 }
 
 std::string GetTypeName() const;
 
 std::size_t GetSize() const;
 
 void* IKnowWhatImDoing();
 
protected:
 void* m_stream;
 std::string m_typeName;
 std::size_t m_size;
 bool m_holding;
};
} //bio namespace