solidity/libyul/optimiser/NameDispenser.cpp
2018-10-15 11:58:51 +02:00

39 lines
1.1 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 can create new unique names.
*/
#include <libyul/optimiser/NameDispenser.h>
using namespace std;
using namespace dev;
using namespace dev::yul;
string NameDispenser::newName(string const& _prefix)
{
string name = _prefix;
size_t suffix = 0;
while (name.empty() || m_usedNames.count(name))
{
suffix++;
name = _prefix + "_" + to_string(suffix);
}
m_usedNames.insert(name);
return name;
}