solidity/test/libyul/FunctionSideEffects.cpp

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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/>.
*/
// SPDX-License-Identifier: GPL-3.0
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#include <test/libyul/FunctionSideEffects.h>
#include <test/Common.h>
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#include <test/libyul/Common.h>
#include <libsolutil/AnsiColorized.h>
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#include <libyul/SideEffects.h>
#include <libyul/optimiser/CallGraphGenerator.h>
#include <libyul/optimiser/Semantics.h>
#include <libyul/Object.h>
#include <libyul/backends/evm/EVMDialect.h>
#include <libsolutil/StringUtils.h>
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#include <boost/algorithm/string.hpp>
using namespace solidity;
using namespace solidity::util;
using namespace solidity::langutil;
using namespace solidity::yul;
using namespace solidity::yul::test;
using namespace solidity::frontend;
using namespace solidity::frontend::test;
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using namespace std;
namespace
{
string toString(SideEffects const& _sideEffects)
{
vector<string> ret;
if (_sideEffects.movable)
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ret.emplace_back("movable");
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if (_sideEffects.movableApartFromEffects)
ret.emplace_back("movable apart from effects");
if (_sideEffects.canBeRemoved)
ret.emplace_back("can be removed");
if (_sideEffects.canBeRemovedIfNoMSize)
ret.emplace_back("can be removed if no msize");
if (!_sideEffects.cannotLoop)
ret.emplace_back("can loop");
if (_sideEffects.otherState == SideEffects::Write)
ret.emplace_back("writes other state");
else if (_sideEffects.otherState == SideEffects::Read)
ret.emplace_back("reads other state");
if (_sideEffects.storage == SideEffects::Write)
ret.emplace_back("writes storage");
else if (_sideEffects.storage == SideEffects::Read)
ret.emplace_back("reads storage");
if (_sideEffects.memory == SideEffects::Write)
ret.emplace_back("writes memory");
else if (_sideEffects.memory == SideEffects::Read)
ret.emplace_back("reads memory");
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return joinHumanReadable(ret);
}
}
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FunctionSideEffects::FunctionSideEffects(string const& _filename):
TestCase(_filename)
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{
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m_source = m_reader.source();
m_expectation = m_reader.simpleExpectations();
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}
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TestCase::TestResult FunctionSideEffects::run(ostream& _stream, string const& _linePrefix, bool _formatted)
{
Object obj;
std::tie(obj.code, obj.analysisInfo) = yul::test::parse(m_source, false);
if (!obj.code)
BOOST_THROW_EXCEPTION(runtime_error("Parsing input failed."));
map<YulString, SideEffects> functionSideEffects = SideEffectsPropagator::sideEffects(
EVMDialect::strictAssemblyForEVM(langutil::EVMVersion()),
CallGraphGenerator::callGraph(*obj.code)
);
std::map<std::string, std::string> functionSideEffectsStr;
for (auto const& fun: functionSideEffects)
functionSideEffectsStr[fun.first.str()] = toString(fun.second);
m_obtainedResult.clear();
for (auto const& fun: functionSideEffectsStr)
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m_obtainedResult += fun.first + ":" + (fun.second.empty() ? "" : " ") + fun.second + "\n";
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return checkResult(_stream, _linePrefix, _formatted);
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}