Method closeValue

LuaSTGPlus/Bencode.cpp:148–217

}

bool Decoder::closeValue()
{
	DecoderInternalState tState = (DecoderInternalState)m_State;
	m_State = (int)DecoderInternalState::Start;

	Value tValue;
	switch (tState)
	{
	case DecoderInternalState::Start:
		if (m_StackValue.empty())
			throw logic_error("unexpected end of object.");
		tValue = std::move(m_StackValue.top());
		m_StackValue.pop();
		if (tValue.Type == ValueType::Dictionary)
		{
			if (m_DictReadState.top() != (int)DictReadState::KeyExpected)
				throw logic_error("key-value pair expected.");
			m_DictReadState.pop();
		}
		break;
	case DecoderInternalState::ParseNull:
		tValue.Type = ValueType::Null;
		break;
	case DecoderInternalState::ParseIntSign:
	case DecoderInternalState::ParseIntPart:
		tValue.Type = ValueType::Int;
		tValue.VInt = m_TempIntNeg ? -m_TempInt : m_TempInt;
		break;
	case DecoderInternalState::ParseString:
	case DecoderInternalState::ParseStringContent:
		tValue.Type = ValueType::String;
		tValue.VString = m_TempString;
		break;
	default:
		throw logic_error("internal error.");
	}

	if (m_StackValue.empty())
	{
		m_RootValue = std::move(tValue);
		return true;
	}

	switch (m_StackValue.top().Type)
	{
	case ValueType::List:
		m_StackValue.top().VList.emplace_back(make_shared<Value>(std::move(tValue)));
		break;
	case ValueType::Dictionary:
		if (m_DictReadState.top() == (int)DictReadState::KeyExpected)
		{
			if (tValue.Type != ValueType::String)
				throw logic_error("key must be a string.");
			m_DictKeyState.emplace(std::move(tValue.VString));
			m_DictReadState.top() = (int)DictReadState::ValueExpected;
		}
		else
		{