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24 lines
618 B
PHP
24 lines
618 B
PHP
<?php
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declare(strict_types=1);
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namespace DesignPatterns\Creational\StaticFactory;
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use InvalidArgumentException;
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/**
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* Note1: Remember, static means global state which is evil because it can't be mocked for tests
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* Note2: Cannot be subclassed or mock-upped or have multiple different instances.
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*/
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final class StaticFactory
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{
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public static function factory(string $type): Formatter
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{
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return match($type) {
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'number' => new FormatNumber(),
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'string' => new FormatString(),
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default => throw new InvalidArgumentException('Unknown format given'),
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};
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}
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}
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