solidity/tools/yulPhaser/Chromosome.h
Kamil Śliwak 4ee9174454 [yul-phaser] Chromosome: Make randomOptimisationStep() public
- And add tests now that it's public.
2020-02-16 02:18:21 +01:00

64 lines
2.1 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/>.
*/
#pragma once
#include <map>
#include <ostream>
#include <string>
#include <vector>
namespace solidity::phaser
{
/**
* An object that represents a sequence of optimiser steps that can be applied to a program.
* Such sequences are used in our genetic algorithm to represent individual members of the
* population.
*
* To calculate the fitness of an individual one must apply its sequence to a specific program.
* This class does not provide any means to do so. It just stores information.
*
* Once created a sequence cannot be changed. The only way to mutate it is to generate a new
* chromosome based on the old one.
*/
class Chromosome
{
public:
Chromosome() = default;
explicit Chromosome(std::vector<std::string> _optimisationSteps):
m_optimisationSteps(std::move(_optimisationSteps)) {}
static Chromosome makeRandom(size_t _length);
size_t length() const { return m_optimisationSteps.size(); }
std::vector<std::string> const& optimisationSteps() const { return m_optimisationSteps; }
friend std::ostream& operator<<(std::ostream& _stream, Chromosome const& _chromosome);
bool operator==(Chromosome const& _other) const { return m_optimisationSteps == _other.m_optimisationSteps; }
bool operator!=(Chromosome const& _other) const { return !(*this == _other); }
static std::string const& randomOptimisationStep();
private:
static std::vector<std::string> allStepNames();
std::vector<std::string> m_optimisationSteps;
};
}