#include "node.h"

#include "data.h"

#include <boost/endian/conversion.hpp>

#include <memory>

using namespace FlowGraph;

FlowGraph::Data& Node::destination()
{
 if (mOperands.size() < 1)
  throw std::runtime_error("ICE: No destination operand available");

 return mOperands[0];
}

// 4 byte for now
Data FlowGraph::MakeConstantInt(int i)
{
 std::vector<uint8_t> value(size_t(4), uint8_t(0));
 *(reinterpret_cast<int32_t*>(value.data())) = boost::endian::native_to_little(static_cast<int32_t>(i));
 return Data{DataType::Int, std::make_shared<Constant>(value)};
}

Data FlowGraph::MakeLocalPointer(FlowGraph::LocalScope& scope, const std::string& name)
{
 Data data{DataType::Pointer, std::make_shared<LocalStorage>(scope, name)};
 scope.push_back(std::make_shared<Data>(data));
 return data;
}

Data FlowGraph::MakeLocalSize(FlowGraph::LocalScope& scope, const std::string& name)
{
 Data data{DataType::Size, std::make_shared<LocalStorage>(scope, name)};
 scope.push_back(std::make_shared<Data>(data));
 return data;
}

Data FlowGraph::MakeTemporaryInt(FlowGraph::LocalScope& scope)
{
 Data data{DataType::Int, std::make_shared<TemporaryStorage>(scope)};
 scope.push_back(std::make_shared<Data>(data));
 return data;
}

LocalScope& CreateScopeOp::scope()
{
 return m_scope;
}