74 lines
1.9 KiB
PHP
74 lines
1.9 KiB
PHP
<?php
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/*
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* This file is part of the Symfony package.
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*
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* (c) Fabien Potencier <fabien@symfony.com>
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*
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* For the full copyright and license information, please view the LICENSE
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* file that was distributed with this source code.
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*/
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namespace Symfony\Component\Intl\Data\Generator;
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use Symfony\Component\Intl\Data\Bundle\Reader\BundleEntryReaderInterface;
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use Symfony\Component\Intl\Locale;
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/**
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* @author Roland Franssen <franssen.roland@gmail.com>
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*
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* @internal
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*/
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trait FallbackTrait
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{
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private $fallbackCache = [];
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private $generatingFallback = false;
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/**
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* @param string $tempDir
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* @param string $displayLocale
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*
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* @return array|null
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*
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* @see AbstractDataGenerator::generateDataForLocale()
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*/
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abstract protected function generateDataForLocale(BundleEntryReaderInterface $reader, $tempDir, $displayLocale);
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/**
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* @param string $tempDir
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*
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* @return array|null
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*
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* @see AbstractDataGenerator::generateDataForRoot()
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*/
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abstract protected function generateDataForRoot(BundleEntryReaderInterface $reader, $tempDir);
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/**
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* @param string $tempDir
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* @param string $displayLocale
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*
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* @return array
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*/
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private function generateFallbackData(BundleEntryReaderInterface $reader, $tempDir, $displayLocale)
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{
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if (null === $fallback = Locale::getFallback($displayLocale)) {
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return [];
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}
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if (isset($this->fallbackCache[$fallback])) {
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return $this->fallbackCache[$fallback];
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}
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$prevGeneratingFallback = $this->generatingFallback;
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$this->generatingFallback = true;
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try {
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$data = 'root' === $fallback ? $this->generateDataForRoot($reader, $tempDir) : $this->generateDataForLocale($reader, $tempDir, $fallback);
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} finally {
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$this->generatingFallback = $prevGeneratingFallback;
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}
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return $this->fallbackCache[$fallback] = $data ?: [];
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}
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}
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