Method build

tools/yulPhaser/Phaser.cpp:133–191

}

std::unique_ptr<GeneticAlgorithm> GeneticAlgorithmFactory::build(
	Options const& _options,
	size_t _populationSize
)
{
	assert(_populationSize > 0);

	switch (_options.algorithm)
	{
		case Algorithm::Random:
		{
			double elitePoolSize = 1.0 / double(_populationSize);

			if (_options.randomElitePoolSize.has_value())
				elitePoolSize = _options.randomElitePoolSize.value();

			return std::make_unique<RandomAlgorithm>(RandomAlgorithm::Options{
				/* elitePoolSize = */ elitePoolSize,
				/* minChromosomeLength = */ _options.minChromosomeLength,
				/* maxChromosomeLength = */ _options.maxChromosomeLength,
			});
		}
		case Algorithm::GEWEP:
		{
			double percentGenesToRandomise = 1.0 / double(_options.maxChromosomeLength);
			double percentGenesToAddOrDelete = percentGenesToRandomise;

			if (_options.gewepGenesToRandomise.has_value())
				percentGenesToRandomise = _options.gewepGenesToRandomise.value();
			if (_options.gewepGenesToAddOrDelete.has_value())
				percentGenesToAddOrDelete = _options.gewepGenesToAddOrDelete.value();

			return std::make_unique<GenerationalElitistWithExclusivePools>(GenerationalElitistWithExclusivePools::Options{
				/* mutationPoolSize = */ _options.gewepMutationPoolSize,
				/* crossoverPoolSize = */ _options.gewepCrossoverPoolSize,
				/* randomisationChance = */ _options.gewepRandomisationChance,
				/* deletionVsAdditionChance = */ _options.gewepDeletionVsAdditionChance,
				/* percentGenesToRandomise = */ percentGenesToRandomise,
				/* percentGenesToAddOrDelete = */ percentGenesToAddOrDelete,
				/* crossover = */ _options.crossover,
				/* uniformCrossoverSwapChance = */ _options.uniformCrossoverSwapChance,
			});
		}
		case Algorithm::Classic:
		{
			return std::make_unique<ClassicGeneticAlgorithm>(ClassicGeneticAlgorithm::Options{
				/* elitePoolSize = */ _options.classicElitePoolSize,
				/* crossoverChance = */ _options.classicCrossoverChance,
				/* mutationChance = */ _options.classicMutationChance,
				/* deletionChance = */ _options.classicDeletionChance,
				/* additionChance = */ _options.classicAdditionChance,
				/* crossover = */ _options.crossover,
				/* uniformCrossoverSwapChance = */ _options.uniformCrossoverSwapChance,
			});
		}
		default:
			assertThrow(false, solidity::util::Exception, "Invalid Algorithm value.");
	}