StringGenerator.php
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StringGenerator.php
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	<?php
	namespace Eris\Generator;

	use Eris\Generator;
	use Eris\Generators;
	use Eris\Random\RandomRange;

	function string()
	{
	return Generators::string();
	}

	/**
	* @template-implements Generator<string>
	*/
	class StringGenerator implements Generator
	{
	public function __invoke($size, RandomRange $rand)
	{
	$length = $rand->rand(0, $size);

	$built = '';
	for ($i = 0; $i < $length; $i++) {
	$built .= chr($rand->rand(33, 126));
	}
	return GeneratedValueSingle::fromJustValue($built, 'string');
	}

	public function shrink(GeneratedValue $element)
	{
	if ($element->unbox() === '') {
	return $element;
	}
	return GeneratedValueSingle::fromJustValue(
	substr($element->unbox(), 0, -1),
	'string'
	);
	}
	}