solidity/libyul/CompilabilityChecker.h

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2019-01-29 09:51:25 +00:00
/*
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/>.
*/
/**
* Component that checks whether all variables are reachable on the stack.
*/
#pragma once
#include <libyul/Dialect.h>
#include <libyul/AsmDataForward.h>
#include <map>
#include <memory>
namespace yul
{
/**
* Component that checks whether all variables are reachable on the stack and
* returns a mapping from function name to the largest stack difference found
* in that function (no entry present if that function is compilable).
* This only works properly if the outermost block is compilable and
* functions are not nested. Otherwise, it might miss reporting some functions.
*/
class CompilabilityChecker
{
public:
static std::map<YulString, int> run(
Dialect const& _dialect,
Block const& _ast,
bool _optimizeStackAllocation
);
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};
}