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backend/vendor/symfony/serializer/Encoder/YamlEncoder.php

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+<?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\Serializer\Encoder;
+
+use Symfony\Component\Serializer\Exception\NotEncodableValueException;
+use Symfony\Component\Serializer\Exception\RuntimeException;
+use Symfony\Component\Yaml\Dumper;
+use Symfony\Component\Yaml\Exception\ParseException;
+use Symfony\Component\Yaml\Parser;
+use Symfony\Component\Yaml\Yaml;
+
+/**
+ * Encodes YAML data.
+ *
+ * @author Kévin Dunglas <dunglas@gmail.com>
+ */
+class YamlEncoder implements EncoderInterface, DecoderInterface
+{
+    public const FORMAT = 'yaml';
+    private const ALTERNATIVE_FORMAT = 'yml';
+
+    public const PRESERVE_EMPTY_OBJECTS = 'preserve_empty_objects';
+
+    /**
+     * Override the amount of spaces to use for indentation of nested nodes.
+     *
+     * This option only works in the constructor, not in calls to `encode`.
+     */
+    public const YAML_INDENTATION = 'yaml_indentation';
+
+    public const YAML_INLINE = 'yaml_inline';
+    /**
+     * Initial indentation for root element.
+     */
+    public const YAML_INDENT = 'yaml_indent';
+    public const YAML_FLAGS = 'yaml_flags';
+
+    private readonly Dumper $dumper;
+    private readonly Parser $parser;
+    private array $defaultContext = [
+        self::YAML_INLINE => 0,
+        self::YAML_INDENT => 0,
+        self::YAML_FLAGS => 0,
+    ];
+
+    public function __construct(?Dumper $dumper = null, ?Parser $parser = null, array $defaultContext = [])
+    {
+        if (!class_exists(Dumper::class)) {
+            throw new RuntimeException('The YamlEncoder class requires the "Yaml" component. Try running "composer require symfony/yaml".');
+        }
+
+        if (!$dumper) {
+            $dumper = \array_key_exists(self::YAML_INDENTATION, $defaultContext) ? new Dumper($defaultContext[self::YAML_INDENTATION]) : new Dumper();
+        }
+        $this->dumper = $dumper;
+        $this->parser = $parser ?? new Parser();
+        unset($defaultContext[self::YAML_INDENTATION]);
+        $this->defaultContext = array_merge($this->defaultContext, $defaultContext);
+    }
+
+    public function encode(mixed $data, string $format, array $context = []): string
+    {
+        $context = array_merge($this->defaultContext, $context);
+
+        if ($context[self::PRESERVE_EMPTY_OBJECTS] ?? false) {
+            $context[self::YAML_FLAGS] |= Yaml::DUMP_OBJECT_AS_MAP;
+        }
+
+        return $this->dumper->dump($data, $context[self::YAML_INLINE], $context[self::YAML_INDENT], $context[self::YAML_FLAGS]);
+    }
+
+    public function supportsEncoding(string $format): bool
+    {
+        return self::FORMAT === $format || self::ALTERNATIVE_FORMAT === $format;
+    }
+
+    public function decode(string $data, string $format, array $context = []): mixed
+    {
+        $context = array_merge($this->defaultContext, $context);
+
+        try {
+            return $this->parser->parse($data, $context[self::YAML_FLAGS]);
+        } catch (ParseException $e) {
+            throw new NotEncodableValueException($e->getMessage(), $e->getCode(), $e);
+        }
+    }
+
+    public function supportsDecoding(string $format): bool
+    {
+        return self::FORMAT === $format || self::ALTERNATIVE_FORMAT === $format;
+    }
+}