mirror of
https://github.com/ethereum/solidity
synced 2023-10-03 13:03:40 +00:00
102 lines
4.6 KiB
C++
102 lines
4.6 KiB
C++
/*
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This file is part of solidity.
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solidity 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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solidity 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 solidity. If not, see <http://www.gnu.org/licenses/>.
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*/
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// SPDX-License-Identifier: GPL-3.0
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#pragma once
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#include <libsolutil/Keccak256.h>
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#include <boost/preprocessor.hpp>
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#include <sstream>
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/// Convenience macros
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/// Returns a valid Solidity integer width w such that 8 <= w <= 256.
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#define INTWIDTH(z, n, _ununsed) BOOST_PP_MUL(BOOST_PP_ADD(n, 1), 8)
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/// Using declaration that aliases long boost multiprecision types with
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/// s(u)<width> where <width> is a valid Solidity integer width and "s"
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/// stands for "signed" and "u" for "unsigned".
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#define USINGDECL(z, n, sign) \
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using BOOST_PP_CAT(BOOST_PP_IF(sign, s, u), INTWIDTH(z, n,)) = \
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boost::multiprecision::number< \
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boost::multiprecision::cpp_int_backend< \
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INTWIDTH(z, n,), \
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INTWIDTH(z, n,), \
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BOOST_PP_IF( \
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sign, \
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boost::multiprecision::signed_magnitude, \
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boost::multiprecision::unsigned_magnitude \
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), \
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boost::multiprecision::unchecked, \
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void \
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> \
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>;
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/// Instantiate the using declarations for signed and unsigned integer types.
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BOOST_PP_REPEAT(32, USINGDECL, 1)
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BOOST_PP_REPEAT(32, USINGDECL, 0)
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/// Case implementation that returns an integer value of the specified type.
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/// For signed integers, we divide by two because the range for boost multiprecision
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/// types is double that of Solidity integer types. Example, 8-bit signed boost
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/// number range is [-255, 255] but Solidity `int8` range is [-128, 127]
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#define CASEIMPL(z, n, sign) \
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case INTWIDTH(z, n,): \
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stream << BOOST_PP_IF( \
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sign, \
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integerValue< \
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BOOST_PP_CAT( \
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BOOST_PP_IF(sign, s, u), \
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INTWIDTH(z, n,) \
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)>(_counter) / 2, \
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integerValue< \
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BOOST_PP_CAT( \
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BOOST_PP_IF(sign, s, u), \
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INTWIDTH(z, n,) \
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)>(_counter) \
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); \
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break;
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/// Switch implementation that instantiates case statements for (un)signed
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/// Solidity integer types.
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#define SWITCHIMPL(sign) \
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std::ostringstream stream; \
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switch (_intWidth) \
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{ \
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BOOST_PP_REPEAT(32, CASEIMPL, sign) \
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} \
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return stream.str();
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namespace solidity::test::fuzzer
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{
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struct LiteralGeneratorUtil
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{
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template<typename V>
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V integerValue(size_t _counter);
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std::string signedIntegerValue(size_t _counter, size_t _intWidth)
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{
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SWITCHIMPL(1)
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}
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std::string unsignedIntegerValue(size_t _counter, size_t _intWidth)
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{
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SWITCHIMPL(0)
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}
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std::string integerValue(size_t _counter, size_t _intWidth, bool _signed);
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std::string fixedBytes(size_t _numBytes, size_t _counter, bool _isHexLiteral);
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};
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}
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