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substitution

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This commit is contained in:
chriseth 2017-12-05 20:07:31 +01:00
parent d34054ef58
commit 07825e90fa
2 changed files with 90 additions and 0 deletions
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39
libjulia/optimiser/Substitution.cpp Normal file
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/*
This file is part of solidity.
solidity 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.
solidity 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 solidity. If not, see <http://www.gnu.org/licenses/>.
*/
/**
* Specific AST copier that replaces certain identifiers with expressions.
*/
#include <libjulia/optimiser/Substitution.h>
#include <libsolidity/inlineasm/AsmData.h>
using namespace std;
using namespace dev;
using namespace dev::julia;
Statement Substitution::translate(Statement const& _statement)
{
if (_statement.type() == typeid(Identifier))
{
string const& name = boost::get<Identifier>(_statement).name;
if (m_substitutions.count(name))
// No recursive substitution
return ASTCopier().translate(*m_substitutions.at(name));
}
return ASTCopier::translate(_statement);
}

51
libjulia/optimiser/Substitution.h Normal file
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/*
This file is part of solidity.
solidity 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.
solidity 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 solidity. If not, see <http://www.gnu.org/licenses/>.
*/
/**
* Specific AST copier that replaces certain identifiers with expressions.
*/
#pragma once
#include <libjulia/optimiser/ASTCopier.h>
#include <string>
#include <map>
#include <set>
namespace dev
{
namespace julia
{
/**
* Specific AST copier that replaces certain identifiers with expressions.
* Only works on ASTs that are expressions.
*/
class Substitution: public ASTCopier
{
public:
Substitution(std::map<std::string, Statement const*> const& _substitutions):
m_substitutions(_substitutions)
{}
virtual Statement translate(Statement const& _statement) override;
private:
std::map<std::string, Statement const*> const& m_substitutions;
};
}
}