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vendor/symfony/console/Descriptor/Descriptor.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\Console\Descriptor;
+
+use Symfony\Component\Console\Application;
+use Symfony\Component\Console\Command\Command;
+use Symfony\Component\Console\Exception\InvalidArgumentException;
+use Symfony\Component\Console\Input\InputArgument;
+use Symfony\Component\Console\Input\InputDefinition;
+use Symfony\Component\Console\Input\InputOption;
+use Symfony\Component\Console\Output\OutputInterface;
+
+/**
+ * @author Jean-François Simon <jeanfrancois.simon@sensiolabs.com>
+ *
+ * @internal
+ */
+abstract class Descriptor implements DescriptorInterface
+{
+    protected OutputInterface $output;
+
+    public function describe(OutputInterface $output, object $object, array $options = []): void
+    {
+        $this->output = $output;
+
+        match (true) {
+            $object instanceof InputArgument => $this->describeInputArgument($object, $options),
+            $object instanceof InputOption => $this->describeInputOption($object, $options),
+            $object instanceof InputDefinition => $this->describeInputDefinition($object, $options),
+            $object instanceof Command => $this->describeCommand($object, $options),
+            $object instanceof Application => $this->describeApplication($object, $options),
+            default => throw new InvalidArgumentException(sprintf('Object of type "%s" is not describable.', get_debug_type($object))),
+        };
+    }
+
+    protected function write(string $content, bool $decorated = false): void
+    {
+        $this->output->write($content, false, $decorated ? OutputInterface::OUTPUT_NORMAL : OutputInterface::OUTPUT_RAW);
+    }
+
+    /**
+     * Describes an InputArgument instance.
+     */
+    abstract protected function describeInputArgument(InputArgument $argument, array $options = []): void;
+
+    /**
+     * Describes an InputOption instance.
+     */
+    abstract protected function describeInputOption(InputOption $option, array $options = []): void;
+
+    /**
+     * Describes an InputDefinition instance.
+     */
+    abstract protected function describeInputDefinition(InputDefinition $definition, array $options = []): void;
+
+    /**
+     * Describes a Command instance.
+     */
+    abstract protected function describeCommand(Command $command, array $options = []): void;
+
+    /**
+     * Describes an Application instance.
+     */
+    abstract protected function describeApplication(Application $application, array $options = []): void;
+}