PhabricatorTranslation.php
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	<?php

	abstract class PhabricatorTranslation {

	abstract public function getLanguage();
	abstract public function getName();
	abstract public function getTranslations();


	/**
	* Return the cleaned translation array.
	*
	* @return dict<string, wild> Translation map with empty translations removed.
	*/
	public function getCleanTranslations() {
	return $this->clean($this->getTranslations());
	}


	/**
	* Removes NULL-valued translation keys from the translation map, to prevent
	* echoing out empty strings.
	*
	* @param dict<string, wild> Translation map, with empty translations.
	* @return dict<string, wild> Map with empty translations removed.
	*/
	protected function clean(array $translation_array) {
	foreach ($translation_array as $key => $translation_string) {
	if ($translation_string === null) {
	unset($translation_array[$key]);
	}
	}

	return $translation_array;
	}

	}