SwissQR: add Sprain\SwissQrBill and dependencies

htdocs/includes/symfony/intl/Data/Bundle/Reader/BufferedBundleReader.php

@@ -0,0 +1,43 @@
+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Intl\Data\Bundle\Reader;
+
+use Symfony\Component\Intl\Data\Util\RingBuffer;
+
+/**
+ * @author Bernhard Schussek <bschussek@gmail.com>
+ *
+ * @internal
+ */
+class BufferedBundleReader implements BundleReaderInterface
+{
+    private BundleReaderInterface $reader;
+    /** @var RingBuffer<string, mixed> */
+    private RingBuffer $buffer;
+
+    public function __construct(BundleReaderInterface $reader, int $bufferSize)
+    {
+        $this->reader = $reader;
+        $this->buffer = new RingBuffer($bufferSize);
+    }
+
+    public function read(string $path, string $locale): mixed
+    {
+        $hash = $path.'//'.$locale;
+
+        if (!isset($this->buffer[$hash])) {
+            $this->buffer[$hash] = $this->reader->read($path, $locale);
+        }
+
+        return $this->buffer[$hash];
+    }
+}