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88 lines
3.4 KiB
88 lines
3.4 KiB
/*
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This file is part of cpp-ethereum.
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cpp-ethereum is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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cpp-ethereum is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with cpp-ethereum. If not, see <http://www.gnu.org/licenses/>.
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*/
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/** @file CommonJS.h
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* @authors:
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* Gav Wood <i@gavwood.com>
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* @date 2014
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*/
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#pragma once
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#include <string>
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#include <libethcore/Common.h>
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#include <libethcore/CommonIO.h>
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#include <libethcore/CommonData.h>
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#include <libethcore/FixedHash.h>
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#include <libethereum/CommonEth.h>
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namespace eth
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{
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eth::bytes jsToBytes(std::string const& _s);
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std::string jsPadded(std::string const& _s, unsigned _l, unsigned _r);
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std::string jsPadded(std::string const& _s, unsigned _l);
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std::string jsUnpadded(std::string _s);
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template <unsigned N> eth::FixedHash<N> jsToFixed(std::string const& _s)
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{
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if (_s.substr(0, 2) == "0x")
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// Hex
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return eth::FixedHash<N>(_s.substr(2));
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else if (_s.find_first_not_of("0123456789") == std::string::npos)
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// Decimal
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return (typename eth::FixedHash<N>::Arith)(_s);
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else
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// Binary
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return eth::FixedHash<N>(asBytes(jsPadded(_s, N)));
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}
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template <unsigned N> boost::multiprecision::number<boost::multiprecision::cpp_int_backend<N * 8, N * 8, boost::multiprecision::unsigned_magnitude, boost::multiprecision::unchecked, void>> jsToInt(std::string const& _s)
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{
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if (_s.substr(0, 2) == "0x")
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// Hex
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return eth::fromBigEndian<boost::multiprecision::number<boost::multiprecision::cpp_int_backend<N * 8, N * 8, boost::multiprecision::unsigned_magnitude, boost::multiprecision::unchecked, void>>>(eth::fromHex(_s.substr(2)));
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else if (_s.find_first_not_of("0123456789") == std::string::npos)
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// Decimal
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return boost::multiprecision::number<boost::multiprecision::cpp_int_backend<N * 8, N * 8, boost::multiprecision::unsigned_magnitude, boost::multiprecision::unchecked, void>>(_s);
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else
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// Binary
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return eth::fromBigEndian<boost::multiprecision::number<boost::multiprecision::cpp_int_backend<N * 8, N * 8, boost::multiprecision::unsigned_magnitude, boost::multiprecision::unchecked, void>>>(asBytes(jsPadded(_s, N)));
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}
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inline eth::Address jsToAddress(std::string const& _s) { return jsToFixed<20>(_s); }
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inline eth::Secret jsToSecret(std::string const& _s) { return jsToFixed<32>(_s); }
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inline eth::u256 jsToU256(std::string const& _s) { return jsToInt<32>(_s); }
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template <unsigned S> std::string toJS(eth::FixedHash<S> const& _h) { return "0x" + toHex(_h.ref()); }
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template <unsigned N> std::string toJS(boost::multiprecision::number<boost::multiprecision::cpp_int_backend<N, N, boost::multiprecision::unsigned_magnitude, boost::multiprecision::unchecked, void>> const& _n) { return "0x" + eth::toHex(eth::toCompactBigEndian(_n)); }
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inline std::string jsToBinary(std::string const& _s)
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{
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return eth::asString(jsToBytes(_s));
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}
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inline std::string jsToDecimal(std::string const& _s)
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{
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return eth::toString(jsToU256(_s));
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}
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inline std::string jsToHex(std::string const& _s)
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{
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return "0x" + eth::toHex(asBytes(_s));
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}
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}
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