mirror of
https://github.com/ethereum/solidity
synced 2023-10-03 13:03:40 +00:00
70 lines
1.9 KiB
C++
70 lines
1.9 KiB
C++
/*
|
|
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/>.
|
|
*/
|
|
/**
|
|
* Optimiser component that identifies functions to be inlined.
|
|
*/
|
|
|
|
#pragma once
|
|
|
|
#include <libyul/ASTDataForward.h>
|
|
#include <libyul/optimiser/ASTWalker.h>
|
|
|
|
#include <set>
|
|
|
|
namespace dev
|
|
{
|
|
namespace yul
|
|
{
|
|
|
|
/**
|
|
* Optimiser component that finds functions that can be
|
|
* inlined inside functional expressions, i.e. functions that
|
|
* - have a single return parameter r
|
|
* - have a body like r := <functional expression>
|
|
* - neither reference themselves nor r in the right hand side
|
|
*
|
|
* This component can only be used on sources with unique names.
|
|
*/
|
|
class InlinableExpressionFunctionFinder: public ASTWalker
|
|
{
|
|
public:
|
|
|
|
std::map<YulString, FunctionDefinition const*> const& inlinableFunctions() const
|
|
{
|
|
return m_inlinableFunctions;
|
|
}
|
|
|
|
using ASTWalker::operator();
|
|
virtual void operator()(Identifier const& _identifier) override;
|
|
virtual void operator()(FunctionCall const& _funCall) override;
|
|
virtual void operator()(FunctionDefinition const& _function) override;
|
|
|
|
private:
|
|
void checkAllowed(YulString _name)
|
|
{
|
|
if (m_disallowedIdentifiers.count(_name))
|
|
m_foundDisallowedIdentifier = true;
|
|
}
|
|
|
|
bool m_foundDisallowedIdentifier = false;
|
|
std::set<YulString> m_disallowedIdentifiers;
|
|
std::map<YulString, FunctionDefinition const*> m_inlinableFunctions;
|
|
};
|
|
|
|
}
|
|
}
|