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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 JSConsole.cpp
* @author Marek Kotewicz <marek@ethdev.com>
* @date 2015
* Ethereum client.
*/
#include <iostream>
#include <libdevcore/Log.h>
#include <libweb3jsonrpc/WebThreeStubServer.h>
#include "JSConsole.h"
#include "JSV8Connector.h"
// TODO! make readline optional!
#include <readline/readline.h>
#include <readline/history.h>
using namespace std;
using namespace dev;
using namespace dev::eth;
JSConsole::JSConsole(WebThreeDirect& _web3, shared_ptr<AccountHolder> const& _accounts):
m_engine(),
m_printer(m_engine)
{
m_jsonrpcConnector.reset(new JSV8Connector(m_engine));
(void)_web3; (void)_accounts;
// m_jsonrpcServer.reset(new WebThreeStubServer(*m_jsonrpcConnector.get(), _web3, _accounts, vector<KeyPair>()));
}
void JSConsole::readExpression() const
{
string cmd = "";
g_logPost = [](std::string const& a, char const*) { cout << "\r \r" << a << endl << flush; rl_forced_update_display(); };
bool isEmpty = true;
int openBrackets = 0;
do {
char* buff = readline(promptForIndentionLevel(openBrackets).c_str());
isEmpty = !(buff && *buff);
if (!isEmpty)
{
cmd += string(buff);
cmd += " ";
free(buff);
int open = count(cmd.begin(), cmd.end(), '{');
open += count(cmd.begin(), cmd.end(), '(');
int closed = count(cmd.begin(), cmd.end(), '}');
closed += count(cmd.begin(), cmd.end(), ')');
openBrackets = open - closed;
}
} while (openBrackets > 0);
if (!isEmpty)
{
add_history(cmd.c_str());
auto value = m_engine.eval(cmd.c_str());
string result = m_printer.prettyPrint(value).cstr();
cout << result << endl;
}
}
std::string JSConsole::promptForIndentionLevel(int _i) const
{
if (_i == 0)
return "> ";
return string((_i + 1) * 2, ' ');
}