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/*
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 <http://www.gnu.org/licenses/>.
*/
/** @file ContractCallDataEncoder.h
* @author Yann yann@ethdev.com
* @date 2014
* Ethereum IDE client.
*/
#pragma once
#include "QVariableDeclaration.h"
#include "QVariableDefinition.h"
namespace dev
{
namespace mix
{
class QFunctionDefinition;
class QVariableDeclaration;
class QVariableDefinition;
class QSolidityType;
/**
* @brief Encode/Decode data to be sent to a transaction or to be displayed in a view.
*/
class ContractCallDataEncoder
{
public:
ContractCallDataEncoder() {}
/// Encode hash of the function to call.
void encode(QFunctionDefinition const* _function);
/// Encode data for corresponding type
void encode(QVariant const& _data, SolidityType const& _type);
/// Decode variable in order to be sent to QML view.
QStringList decode(QList<QVariableDeclaration*> const& _dec, bytes _value);
/// Decode single variable
QVariant decode(SolidityType const& _type, bytes const& _value);
/// Get all encoded data encoded by encode function.
bytes encodedData();
/// Encode a string to bytes (in order to be used as funtion param)
dev::bytes encodeStringParam(QString const& _str, unsigned _alignSize);
/// Encode a string to ABI bytes
dev::bytes encodeBytes(QString const& _str);
/// Decode bytes from ABI
dev::bytes decodeBytes(dev::bytes const& _rawValue);
private:
unsigned encodeSingleItem(QString const& _data, SolidityType const& _type, bytes& _dest);
bigint decodeInt(dev::bytes const& _rawValue);
dev::bytes encodeInt(QString const& _str);
QString toString(dev::bigint const& _int);
dev::bytes encodeBool(QString const& _str);
bool decodeBool(dev::bytes const& _rawValue);
QString toString(bool _b);
QString toString(dev::bytes const& _b);
bool asString(dev::bytes const& _b, QString& _str);
private:
bytes m_encodedData;
bytes m_dynamicData;
};
}
}