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Passed
Push — master ( 5cefd1...492078 )
by Anton
04:08
created

Dumper::dump()   D

Complexity

Conditions 47
Paths 8

Size

Total Lines 90
Code Lines 52

Duplication

Lines 0
Ratio 0 %

Importance

Changes 1
Bugs 0 Features 0
Metric Value
cc 47
eloc 52
c 1
b 0
f 0
nc 8
nop 4
dl 0
loc 90
rs 4.1666

How to fix   Long Method    Complexity   

Long Method

Small methods make your code easier to understand, in particular if combined with a good name. Besides, if your method is small, finding a good name is usually much easier.

For example, if you find yourself adding comments to a method's body, this is usually a good sign to extract the commented part to a new method, and use the comment as a starting point when coming up with a good name for this new method.

Commonly applied refactorings include:

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<?php
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/*
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 * This file is part of the Symfony package.
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 *
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 * (c) Fabien Potencier <[email protected]>
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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 Symfony\Component\Yaml;
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use Symfony\Component\Yaml\Tag\TaggedValue;
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/**
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 * Dumper dumps PHP variables to YAML strings.
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 *
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 * @author Fabien Potencier <[email protected]>
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 *
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 * @final
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 */
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class Dumper
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{
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    /**
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     * The amount of spaces to use for indentation of nested nodes.
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     *
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     * @var int
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     */
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    protected $indentation;
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    public function __construct(int $indentation = 4)
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    {
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        if ($indentation < 1) {
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            throw new \InvalidArgumentException('The indentation must be greater than zero.');
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        }
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        $this->indentation = $indentation;
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    }
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    /**
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     * Dumps a PHP value to YAML.
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     *
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     * @param mixed $input  The PHP value
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     * @param int   $inline The level where you switch to inline YAML
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     * @param int   $indent The level of indentation (used internally)
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     * @param int   $flags  A bit field of Yaml::DUMP_* constants to customize the dumped YAML string
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     */
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    public function dump($input, int $inline = 0, int $indent = 0, int $flags = 0): string
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    {
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        $output = '';
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        $prefix = $indent ? str_repeat(' ', $indent) : '';
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        $dumpObjectAsInlineMap = true;
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        if (Yaml::DUMP_OBJECT_AS_MAP & $flags && ($input instanceof \ArrayObject || $input instanceof \stdClass)) {
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            $dumpObjectAsInlineMap = empty((array) $input);
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        }
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        if ($inline <= 0 || (!\is_array($input) && !$input instanceof TaggedValue && $dumpObjectAsInlineMap) || empty($input)) {
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            $output .= $prefix.Inline::dump($input, $flags);
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        } else {
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            $dumpAsMap = Inline::isHash($input);
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            foreach ($input as $key => $value) {
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                if ('' !== $output && "\n" !== $output[-1]) {
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                    $output .= "\n";
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                }
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                if (Yaml::DUMP_MULTI_LINE_LITERAL_BLOCK & $flags && \is_string($value) && false !== strpos($value, "\n") && false === strpos($value, "\r")) {
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                    // If the first line starts with a space character, the spec requires a blockIndicationIndicator
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                    // http://www.yaml.org/spec/1.2/spec.html#id2793979
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                    $blockIndentationIndicator = (' ' === substr($value, 0, 1)) ? (string) $this->indentation : '';
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                    if (isset($value[-2]) && "\n" === $value[-2] && "\n" === $value[-1]) {
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                        $blockChompingIndicator = '+';
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                    } elseif ("\n" === $value[-1]) {
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                        $blockChompingIndicator = '';
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                    } else {
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                        $blockChompingIndicator = '-';
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                    }
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                    $output .= sprintf('%s%s%s |%s%s', $prefix, $dumpAsMap ? Inline::dump($key, $flags).':' : '-', '', $blockIndentationIndicator, $blockChompingIndicator);
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                    foreach (explode("\n", $value) as $row) {
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                        if ('' === $row) {
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                            $output .= "\n";
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                        } else {
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                            $output .= sprintf("\n%s%s%s", $prefix, str_repeat(' ', $this->indentation), $row);
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                        }
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                    }
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                    continue;
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                }
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                if ($value instanceof TaggedValue) {
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                    $output .= sprintf('%s%s !%s', $prefix, $dumpAsMap ? Inline::dump($key, $flags).':' : '-', $value->getTag());
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                    if (Yaml::DUMP_MULTI_LINE_LITERAL_BLOCK & $flags && \is_string($value->getValue()) && false !== strpos($value->getValue(), "\n") && false === strpos($value->getValue(), "\r\n")) {
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                        // If the first line starts with a space character, the spec requires a blockIndicationIndicator
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                        // http://www.yaml.org/spec/1.2/spec.html#id2793979
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                        $blockIndentationIndicator = (' ' === substr($value->getValue(), 0, 1)) ? (string) $this->indentation : '';
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                        $output .= sprintf(' |%s', $blockIndentationIndicator);
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                        foreach (explode("\n", $value->getValue()) as $row) {
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                            $output .= sprintf("\n%s%s%s", $prefix, str_repeat(' ', $this->indentation), $row);
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                        }
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                        continue;
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                    }
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                    if ($inline - 1 <= 0 || null === $value->getValue() || is_scalar($value->getValue())) {
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                        $output .= ' '.$this->dump($value->getValue(), $inline - 1, 0, $flags)."\n";
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                    } else {
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                        $output .= "\n";
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                        $output .= $this->dump($value->getValue(), $inline - 1, $dumpAsMap ? $indent + $this->indentation : $indent + 2, $flags);
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                    }
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                    continue;
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                }
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                $dumpObjectAsInlineMap = true;
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                if (Yaml::DUMP_OBJECT_AS_MAP & $flags && ($value instanceof \ArrayObject || $value instanceof \stdClass)) {
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                    $dumpObjectAsInlineMap = empty((array) $value);
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                }
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                $willBeInlined = $inline - 1 <= 0 || !\is_array($value) && $dumpObjectAsInlineMap || empty($value);
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                $output .= sprintf('%s%s%s%s',
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                    $prefix,
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                    $dumpAsMap ? Inline::dump($key, $flags).':' : '-',
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                    $willBeInlined ? ' ' : "\n",
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                    $this->dump($value, $inline - 1, $willBeInlined ? 0 : $indent + $this->indentation, $flags)
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                ).($willBeInlined ? "\n" : '');
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            }
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        }
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        return $output;
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    }
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}
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