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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 NatspecExpressionEvaluator.cpp
* @author Marek Kotewicz <marek@ethdev.com>
* @date 2015
*/
#include <libdevcore/Log.h>
#include <libdevcore/Exceptions.h>
#include "NatspecExpressionEvaluator.h"
using namespace std;
using namespace dev;
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static QString contentsOfQResource(string const& _res)
{
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QFile file(QString::fromStdString(_res));
if (!file.open(QFile::ReadOnly))
BOOST_THROW_EXCEPTION(FileError());
QTextStream in(&file);
return in.readAll();
}
NatspecExpressionEvaluator::NatspecExpressionEvaluator(QString const& _abi, QString const& _transaction, QString const& _method)
: m_abi(_abi), m_transaction(_transaction), m_method(_method)
{
Q_INIT_RESOURCE(natspec);
QJSValue result = m_engine.evaluate(contentsOfQResource(":/natspec/natspec.js"));
if (result.isError())
BOOST_THROW_EXCEPTION(FileError());
m_engine.evaluate("var natspec = require('natspec')");
}
QString NatspecExpressionEvaluator::evalExpression(QString const& _expression)
{
QString call = "";
if (!m_abi.isEmpty() && !m_transaction.isEmpty() && !m_method.isEmpty())
call = ", {abi:" + m_abi + ", transaction:" + m_transaction + ", method: '" + m_method + "' }";
QJSValue result = m_engine.evaluate("natspec.evaluateExpressionSafe(\"" + _expression + "\"" + call + ")");
return result.toString();
}