First Commit

vendor/phpunit/php-code-coverage/src/Util/Xml.php

@@ -0,0 +1,53 @@
+<?php declare(strict_types=1);
+/*
+ * This file is part of phpunit/php-code-coverage.
+ *
+ * (c) Sebastian Bergmann <sebastian@phpunit.de>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+namespace SebastianBergmann\CodeCoverage\Util;
+
+use const PHP_EOL;
+use function libxml_clear_errors;
+use function libxml_get_errors;
+use function libxml_use_internal_errors;
+use DOMDocument;
+use SebastianBergmann\CodeCoverage\XmlException;
+
+/**
+ * @internal This class is not covered by the backward compatibility promise for phpunit/php-code-coverage
+ */
+final readonly class Xml
+{
+    /**
+     * @throws XmlException
+     *
+     * @see https://bugs.php.net/bug.php?id=79191
+     */
+    public static function asString(DOMDocument $document): string
+    {
+        $xmlErrorHandling = libxml_use_internal_errors(true);
+
+        $document->formatOutput       = true;
+        $document->preserveWhiteSpace = false;
+
+        $buffer = $document->saveXML();
+
+        if ($buffer === false) {
+            $message = 'Unable to generate the XML';
+
+            foreach (libxml_get_errors() as $error) {
+                $message .= PHP_EOL . $error->message;
+            }
+
+            throw new XmlException($message);
+        }
+
+        libxml_clear_errors();
+        libxml_use_internal_errors($xmlErrorHandling);
+
+        return $buffer;
+    }
+}