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Revision Autor Zeilennr. Zeile
148 lars 1 
<?php
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/*
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 * This file is part of Psy Shell.
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 *
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 * (c) 2012-2022 Justin Hileman
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 *
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 * For the full copyright and license information, please view the LICENSE
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 * file that was distributed with this source code.
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 */
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namespace Psy\VarDumper;
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use Symfony\Component\Console\Formatter\OutputFormatter;
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use Symfony\Component\VarDumper\Caster\Caster;
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use Symfony\Component\VarDumper\Cloner\Stub;
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/**
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 * A Presenter service.
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 */
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class Presenter
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{
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    const VERBOSE = 1;
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    private $cloner;
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    private $dumper;
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    private $exceptionsImportants = [
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        "\0*\0message",
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        "\0*\0code",
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        "\0*\0file",
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        "\0*\0line",
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        "\0Exception\0previous",
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    ];
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    private $styles = [
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        'num'       => 'number',
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        'integer'   => 'integer',
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        'float'     => 'float',
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        'const'     => 'const',
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        'str'       => 'string',
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        'cchr'      => 'default',
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        'note'      => 'class',
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        'ref'       => 'default',
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        'public'    => 'public',
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        'protected' => 'protected',
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        'private'   => 'private',
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        'meta'      => 'comment',
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        'key'       => 'comment',
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        'index'     => 'number',
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    ];
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    public function __construct(OutputFormatter $formatter, $forceArrayIndexes = false)
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    {
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        // Work around https://github.com/symfony/symfony/issues/23572
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        $oldLocale = \setlocale(\LC_NUMERIC, 0);
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        \setlocale(\LC_NUMERIC, 'C');
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        $this->dumper = new Dumper($formatter, $forceArrayIndexes);
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        $this->dumper->setStyles($this->styles);
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        // Now put the locale back
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        \setlocale(\LC_NUMERIC, $oldLocale);
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        $this->cloner = new Cloner();
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        $this->cloner->addCasters(['*' => function ($obj, array $a, Stub $stub, $isNested, $filter = 0) {
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            if ($filter || $isNested) {
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                if ($obj instanceof \Throwable) {
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                    $a = Caster::filter($a, Caster::EXCLUDE_NOT_IMPORTANT | Caster::EXCLUDE_EMPTY, $this->exceptionsImportants);
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                } else {
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                    $a = Caster::filter($a, Caster::EXCLUDE_PROTECTED | Caster::EXCLUDE_PRIVATE);
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                }
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            }
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            return $a;
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        }]);
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    }
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    /**
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     * Register casters.
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     *
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     * @see http://symfony.com/doc/current/components/var_dumper/advanced.html#casters
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     *
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     * @param callable[] $casters A map of casters
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     */
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    public function addCasters(array $casters)
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    {
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        $this->cloner->addCasters($casters);
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    }
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    /**
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     * Present a reference to the value.
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     *
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     * @param mixed $value
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     *
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     * @return string
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     */
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    public function presentRef($value): string
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    {
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        return $this->present($value, 0);
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    }
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    /**
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     * Present a full representation of the value.
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     *
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     * If $depth is 0, the value will be presented as a ref instead.
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     *
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     * @param mixed $value
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     * @param int   $depth   (default: null)
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     * @param int   $options One of Presenter constants
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     *
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     * @return string
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     */
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    public function present($value, int $depth = null, int $options = 0): string
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    {
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        $data = $this->cloner->cloneVar($value, !($options & self::VERBOSE) ? Caster::EXCLUDE_VERBOSE : 0);
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        if (null !== $depth) {
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            $data = $data->withMaxDepth($depth);
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        }
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        // Work around https://github.com/symfony/symfony/issues/23572
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        $oldLocale = \setlocale(\LC_NUMERIC, 0);
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        \setlocale(\LC_NUMERIC, 'C');
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        $output = '';
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        $this->dumper->dump($data, function ($line, $depth) use (&$output) {
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            if ($depth >= 0) {
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                if ('' !== $output) {
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                    $output .= \PHP_EOL;
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                }
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                $output .= \str_repeat('  ', $depth).$line;
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            }
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        });
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        // Now put the locale back
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        \setlocale(\LC_NUMERIC, $oldLocale);
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        return OutputFormatter::escape($output);
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    }
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}