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/*
* libnbt++ - A library for the Minecraft Named Binary Tag format.
* Copyright (C) 2013, 2015 ljfa-ag
*
* This file is part of libnbt++.
*
* libnbt++ is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* libnbt++ 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 Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with libnbt++. If not, see <http://www.gnu.org/licenses/>.
*/
#include "tag_array.h"
#include "io/stream_reader.h"
#include "io/stream_writer.h"
#include <istream>
namespace nbt
{
template<class T>
T& tag_array<T>::at(size_t i)
{
return data.at(i);
}
template<class T>
T tag_array<T>::at(size_t i) const
{
return data.at(i);
}
//Slightly different between byte_array and int_array
//Reading
template<>
void tag_array<int8_t>::read_payload(io::stream_reader& reader)
{
int32_t length;
reader.read_num(length);
if(length < 0)
reader.get_istr().setstate(std::ios::failbit);
if(!reader.get_istr())
throw io::input_error("Error reading length of tag_byte_array");
data.resize(length);
reader.get_istr().read(reinterpret_cast<char*>(data.data()), length);
if(!reader.get_istr())
throw io::input_error("Error reading contents of tag_byte_array");
}
template<>
void tag_array<int32_t>::read_payload(io::stream_reader& reader)
{
int32_t length;
reader.read_num(length);
if(length < 0)
reader.get_istr().setstate(std::ios::failbit);
if(!reader.get_istr())
throw io::input_error("Error reading length of tag_int_array");
data.clear();
data.reserve(length);
for(int32_t i = 0; i < length; ++i)
{
int32_t val;
reader.read_num(val);
data.push_back(val);
}
if(!reader.get_istr())
throw io::input_error("Error reading contents of tag_int_array");
}
//Writing
template<>
void tag_array<int8_t>::write_payload(io::stream_writer& writer) const
{
if(size() > io::stream_writer::max_array_len)
{
writer.get_ostr().setstate(std::ios::failbit);
throw std::length_error("Byte array is too large for NBT");
}
writer.write_num(static_cast<int32_t>(size()));
writer.get_ostr().write(reinterpret_cast<const char*>(data.data()), data.size());
}
template<>
void tag_array<int32_t>::write_payload(io::stream_writer& writer) const
{
if(size() > io::stream_writer::max_array_len)
{
writer.get_ostr().setstate(std::ios::failbit);
throw std::length_error("Int array is too large for NBT");
}
writer.write_num(static_cast<int32_t>(size()));
for(int32_t i: data)
writer.write_num(i);
}
//Enforce template instantiations
template class tag_array<int8_t>;
template class tag_array<int32_t>;
}
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