Subversion-Projekte lars-tiefland.laravel_shop

<?php

/*

 * This file is part of Psy Shell.

 *

 * (c) 2012-2022 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\Arg;

use PhpParser\Node\Expr\New_;

use PhpParser\Node\Expr\Variable;

use PhpParser\Node\Name\FullyQualified as FullyQualifiedName;

use PhpParser\Node\Scalar\String_;

use PhpParser\Node\Stmt\Throw_;

use PhpParser\PrettyPrinter\Standard as Printer;

use Psy\Context;

use Psy\ContextAware;

use Psy\Exception\ThrowUpException;

use Psy\Input\CodeArgument;

use Psy\ParserFactory;

use Symfony\Component\Console\Input\InputInterface;

use Symfony\Component\Console\Output\OutputInterface;

/**

 * Throw an exception or error out of the Psy Shell.

 */

class ThrowUpCommand extends Command implements ContextAware

{

    private $parser;

    private $printer;

    /**

     * {@inheritdoc}

     */

    public function __construct($name = null)

    {

        $parserFactory = new ParserFactory();

        $this->parser = $parserFactory->createParser();

        $this->printer = new Printer();

        parent::__construct($name);

    }

    /**

     * @deprecated throwUp no longer needs to be ContextAware

     *

     * @param Context $context

     */

    public function setContext(Context $context)

    {

        // Do nothing

    }

    /**

     * {@inheritdoc}

     */

    protected function configure()

    {

        $this

            ->setName('throw-up')

            ->setDefinition([

                new CodeArgument('exception', CodeArgument::OPTIONAL, 'Exception or Error to throw.'),

            ])

            ->setDescription('Throw an exception or error out of the Psy Shell.')

            ->setHelp(

                <<<'HELP'

Throws an exception or error out of the current the Psy Shell instance.

By default it throws the most recent exception.

e.g.

<return>>>> throw-up</return>

<return>>>> throw-up $e</return>

<return>>>> throw-up new Exception('WHEEEEEE!')</return>

<return>>>> throw-up "bye!"</return>

HELP

            );

    }

    /**

     * {@inheritdoc}

     *

     * @return int 0 if everything went fine, or an exit code

     *

     * @throws \InvalidArgumentException if there is no exception to throw

     */

    protected function execute(InputInterface $input, OutputInterface $output)

    {

        $args = $this->prepareArgs($input->getArgument('exception'));

        $throwStmt = new Throw_(new New_(new FullyQualifiedName(ThrowUpException::class), $args));

        $throwCode = $this->printer->prettyPrint([$throwStmt]);

        $shell = $this->getApplication();

        $shell->addCode($throwCode, !$shell->hasCode());

        return 0;

    }

    /**

     * Parse the supplied command argument.

     *

     * If no argument was given, this falls back to `$_e`

     *

     * @throws \InvalidArgumentException if there is no exception to throw

     *

     * @param string $code

     *

     * @return Arg[]

     */

    private function prepareArgs(string $code = null): array

    {

        if (!$code) {

            // Default to last exception if nothing else was supplied

            return [new Arg(new Variable('_e'))];

        }

        if (\strpos($code, '<?') === false) {

            $code = '<?php '.$code;

        }

        $nodes = $this->parse($code);

        if (\count($nodes) !== 1) {

            throw new \InvalidArgumentException('No idea how to throw this');

        }

        $node = $nodes[0];

        // Make this work for PHP Parser v3.x

        $expr = isset($node->expr) ? $node->expr : $node;

        $args = [new Arg($expr, false, false, $node->getAttributes())];

        // Allow throwing via a string, e.g. `throw-up "SUP"`

        if ($expr instanceof String_) {

            return [new New_(new FullyQualifiedName(\Exception::class), $args)];

        }

        return $args;

    }

    /**

     * Lex and parse a string of code into statements.

     *

     * @param string $code

     *

     * @return array Statements

     */

    private function parse(string $code): array

    {

        try {

            return $this->parser->parse($code);

        } catch (\PhpParser\Error $e) {

            if (\strpos($e->getMessage(), 'unexpected EOF') === false) {

                throw $e;

            }

            // If we got an unexpected EOF, let's try it again with a semicolon.

            return $this->parser->parse($code.';');

        }

    }

}