/*
	This file is part of cpp-ethereum.

	cpp-ethereum is free software: you can redistribute it and/or modify
	it under the terms of the GNU General Public License as published by
	the Free Software Foundation, either version 3 of the License, or
	(at your option) any later version.

	cpp-ethereum 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 General Public License for more details.

	You should have received a copy of the GNU General Public License
	along with cpp-ethereum.  If not, see .
*/
/**
 * @author Christian 
 * @date 2015
 * Code generation utils that handle arrays.
 */

#include 
#include 
#include 
#include 
#include 
#include 
#include 

using namespace std;
using namespace dev;
using namespace solidity;

void ArrayUtils::copyArrayToStorage(ArrayType const& _targetType, ArrayType const& _sourceType) const
{
	// this copies source to target and also clears target if it was larger
	// need to leave "target_ref target_byte_off" on the stack at the end

	// stack layout: [source_ref] [source length] target_ref (top)
	solAssert(_targetType.location() == DataLocation::Storage, "");

	IntegerType uint256(256);
	Type const* targetBaseType = _targetType.isByteArray() ? &uint256 : &(*_targetType.baseType());
	Type const* sourceBaseType = _sourceType.isByteArray() ? &uint256 : &(*_sourceType.baseType());

	// TODO unroll loop for small sizes

	bool sourceIsStorage = _sourceType.location() == DataLocation::Storage;
	bool fromCalldata = _sourceType.location() == DataLocation::CallData;
	bool directCopy = sourceIsStorage && sourceBaseType->isValueType() && *sourceBaseType == *targetBaseType;
	bool haveByteOffsetSource = !directCopy && sourceIsStorage && sourceBaseType->storageBytes() storageBytes()  0; --i)
		m_context