<?php

/*
 * This file is part of Psy Shell.
 *
 * (c) 2012-2023 Justin Hileman
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 */

namespace Psy\Command;

use PhpParser\Node;
use Psy\Context;
use Psy\ContextAware;
use Psy\Input\CodeArgument;
use Psy\ParserFactory;
use Psy\VarDumper\Presenter;
use Psy\VarDumper\PresenterAware;
use Symfony\Component\Console\Input\InputInterface;
use Symfony\Component\Console\Input\InputOption;
use Symfony\Component\Console\Output\OutputInterface;
use Symfony\Component\VarDumper\Caster\Caster;

/**
 * Parse PHP code and show the abstract syntax tree.
 */
class ParseCommand extends Command implements ContextAware, PresenterAware
{
    /**
     * Context instance (for ContextAware interface).
     *
     * @var Context
     */
    protected $context;

    private $presenter;
    private $parser;

    /**
     * {@inheritdoc}
     */
    public function __construct($name = null)
    {
        $this->parser = (new ParserFactory())->createParser();

        parent::__construct($name);
    }

    /**
     * ContextAware interface.
     *
     * @param Context $context
     */
    public function setContext(Context $context)
    {
        $this->context = $context;
    }

    /**
     * PresenterAware interface.
     *
     * @param Presenter $presenter
     */
    public function setPresenter(Presenter $presenter)
    {
        $this->presenter = clone $presenter;
        $this->presenter->addCasters([
            Node::class => function (Node $node, array $a) {
                $a = [
                    Caster::PREFIX_VIRTUAL.'type'       => $node->getType(),
                    Caster::PREFIX_VIRTUAL.'attributes' => $node->getAttributes(),
                ];

                foreach ($node->getSubNodeNames() as $name) {
                    $a[Caster::PREFIX_VIRTUAL.$name] = $node->$name;
                }

                return $a;
            },
        ]);
    }

    /**
     * {@inheritdoc}
     */
    protected function configure()
    {
        $this
            ->setName('parse')
            ->setDefinition([
            new CodeArgument('code', CodeArgument::REQUIRED, 'PHP code to parse.'),
            new InputOption('depth', '', InputOption::VALUE_REQUIRED, 'Depth to parse.', 10),
        ])
            ->setDescription('Parse PHP code and show the abstract syntax tree.')
            ->setHelp(
                <<<'HELP'
Parse PHP code and show the abstract syntax tree.

This command is used in the development of PsySH. Given a string of PHP code,
it pretty-prints the PHP Parser parse tree.

See https://github.com/nikic/PHP-Parser

It prolly won't be super useful for most of you, but it's here if you want to play.
HELP
            );
    }

    /**
     * {@inheritdoc}
     */
    protected function execute(InputInterface $input, OutputInterface $output): int
    {
        $code = $input->getArgument('code');
        $parserKind = $input->getOption('kind');
        $depth = $input->getOption('depth');

        $nodes = $this->parser->parse($code);
        $output->page($this->presenter->present($nodes, $depth));

        $this->context->setReturnValue($nodes);

        return 0;
    }
}

• [D] ListCommand
• [D] TimeitCommand
• [F] BufferCommand.php
  Delete
• [F] ClearCommand.php
  Delete
• [F] CodeArgumentParser.php
  Delete
• [F] Command.php
  Delete
• [F] DocCommand.php
  Delete
• [F] DumpCommand.php
  Delete
• [F] EditCommand.php
  Delete
• [F] ExitCommand.php
  Delete
• [F] HelpCommand.php
  Delete
• [F] HistoryCommand.php
  Delete
• [F] ListCommand.php
  Delete
• [F] ParseCommand.php
  Delete
• [F] PsyVersionCommand.php
  Delete
• [F] ReflectingCommand.php
  Delete
• [F] ShowCommand.php
  Delete
• [F] SudoCommand.php
  Delete
• [F] ThrowUpCommand.php
  Delete
• [F] TimeitCommand.php
  Delete
• [F] TraceCommand.php
  Delete
• [F] WhereamiCommand.php
  Delete
• [F] WtfCommand.php
  Delete

Blog Section

Discover the Latest in Digital Payments and NFC Technology

Dive into our blog to explore the cutting-edge trends in digital payments and NFC technology. Stay updated on the innovations that are revolutionizing transactions, boosting security, and making payments quicker and more convenient. Learn how these advancements are shaping the future of financial interactions and driving the global transition towards a cashless world.

The Rise of Contactless Payments:...

In recent years, contactless payments have surged in popularity, driven...

Visit Blog

March 27, 2024

Enhancing Payment Security: The Role...

As digital transactions proliferate, ensuring robust payment security is more critical than ever. Two foundational...

Visit Blog

March 27, 2024

The Future of Digital Wallets:...

Digital wallets have fundamentally transformed how we manage money, offering a streamlined, secure, and highly...

Visit Blog

March 27, 2024