mirror of
https://github.com/ethereum/solidity
synced 2023-10-03 13:03:40 +00:00
88 lines
2.6 KiB
C++
88 lines
2.6 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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/**
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* Some useful snippets for the optimiser.
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*/
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#include <libyul/Utilities.h>
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#include <libyul/AsmData.h>
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#include <libyul/Exceptions.h>
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#include <libdevcore/CommonData.h>
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#include <libdevcore/FixedHash.h>
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using namespace std;
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using namespace dev;
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using namespace yul;
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u256 yul::valueOfNumberLiteral(Literal const& _literal)
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{
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yulAssert(_literal.kind == LiteralKind::Number, "Expected number literal!");
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std::string const& literalString = _literal.value.str();
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yulAssert(isValidDecimal(literalString) || isValidHex(literalString), "Invalid number literal!");
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return u256(literalString);
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}
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u256 yul::valueOfStringLiteral(Literal const& _literal)
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{
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yulAssert(_literal.kind == LiteralKind::String, "Expected string literal!");
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yulAssert(_literal.value.str().size() <= 32, "Literal string too long!");
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return u256(h256(_literal.value.str(), h256::FromBinary, h256::AlignLeft));
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}
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u256 yul::valueOfBoolLiteral(Literal const& _literal)
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{
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yulAssert(_literal.kind == LiteralKind::Boolean, "Expected bool literal!");
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if (_literal.value == "true"_yulstring)
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return u256(1);
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else if (_literal.value == "false"_yulstring)
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return u256(0);
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yulAssert(false, "Unexpected bool literal value!");
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}
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u256 yul::valueOfLiteral(Literal const& _literal)
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{
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switch(_literal.kind)
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{
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case LiteralKind::Number:
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return valueOfNumberLiteral(_literal);
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case LiteralKind::Boolean:
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return valueOfBoolLiteral(_literal);
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case LiteralKind::String:
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return valueOfStringLiteral(_literal);
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default:
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yulAssert(false, "Unexpected literal kind!");
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}
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}
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template<>
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bool Less<Literal>::operator()(Literal const& _lhs, Literal const& _rhs) const
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{
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if (std::make_tuple(_lhs.kind, _lhs.type) != std::make_tuple(_rhs.kind, _rhs.type))
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return std::make_tuple(_lhs.kind, _lhs.type) < std::make_tuple(_rhs.kind, _rhs.type);
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if (_lhs.kind == LiteralKind::Number)
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return valueOfNumberLiteral(_lhs) < valueOfNumberLiteral(_rhs);
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else
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return _lhs.value < _rhs.value;
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}
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