Failed Conditions
Pull Request — master (#1)
by Billie
02:52
created

YamlDecode::decode()   A

Complexity

Conditions 2
Paths 2

Size

Total Lines 20
Code Lines 13

Duplication

Lines 0
Ratio 0 %

Importance

Changes 2
Bugs 0 Features 0
Metric Value
c 2
b 0
f 0
dl 0
loc 20
rs 9.4285
cc 2
eloc 13
nc 2
nop 3
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<?php
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namespace Fitbug\SymfonySerializer\YamlEncoderDecoder;
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use Symfony\Component\Serializer\Encoder\DecoderInterface;
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use Symfony\Component\Serializer\Exception\UnexpectedValueException;
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use Symfony\Component\Yaml\Yaml;
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class YamlDecode implements DecoderInterface
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{
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    const OPTION_EXCEPTION_ON_INVALID_TYPE = 'yaml_decode_exception_on_invalid_type';
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    const OPTION_OBJECT                    = 'yaml_decode_object';
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    const OPTION_OBJECT_FOR_MAP            = 'yaml_decode_object_for_map';
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    const OPTION_DATE_TIME                 = 'yaml_decode_date_time';
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    const SUPPORTED_ENCODING_YAML          = "yaml";
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    /**
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     * @var bool
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     */
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    private $exceptionOnInvalidType;
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    /**
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     * @var bool
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     */
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    private $object;
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    /**
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     * @var bool
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     */
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    private $objectForMap;
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    /**
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     * @var bool
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     */
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    private $dateTime;
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    /**
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     * Constructs a new YamlDecode instance.
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     *
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     * @param bool $exceptionOnInvalidType
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     * @param bool $object
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     * @param bool $objectForMap
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     * @param bool $dateTime
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     */
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    public function __construct(
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        $exceptionOnInvalidType = false,
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Comprehensibility Naming introduced by
The variable name $exceptionOnInvalidType exceeds the maximum configured length of 20.

Very long variable names usually make code harder to read. It is therefore recommended not to make variable names too verbose.

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        $object = false,
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        $objectForMap = false,
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        $dateTime = false
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    ) {
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        $this->exceptionOnInvalidType = $exceptionOnInvalidType;
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        $this->object                 = $object;
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        $this->objectForMap           = $objectForMap;
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        $this->dateTime               = $dateTime;
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    }
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    /**
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     * Decodes a string into PHP data.
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     *
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     * @param string $data    Data to decode
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     * @param string $format  Format name
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     * @param array  $context options that decoders have access to
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     *
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     * The format parameter specifies which format the data is in; valid values
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     * depend on the specific implementation. The only format we support is 'yaml'
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     *
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     * @return mixed
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Documentation introduced by
Consider making the return type a bit more specific; maybe use array|string|\stdClass.

This check looks for the generic type array as a return type and suggests a more specific type. This type is inferred from the actual code.

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     *
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     * @throws UnexpectedValueException
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     */
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    public function decode($data, $format, array $context = [])
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    {
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        $results = null;
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Unused Code introduced by
$results is not used, you could remove the assignment.

This check looks for variable assignements that are either overwritten by other assignments or where the variable is not used subsequently.

$myVar = 'Value';
$higher = false;

if (rand(1, 6) > 3) {
    $higher = true;
} else {
    $higher = false;
}

Both the $myVar assignment in line 1 and the $higher assignment in line 2 are dead. The first because $myVar is never used and the second because $higher is always overwritten for every possible time line.

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        $context = $this->resolveContext($context);
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        if ($this->isYamlOldStyleInterface()) {
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            $results = Yaml::parse(
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                $data,
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                $context[ self::OPTION_EXCEPTION_ON_INVALID_TYPE ],
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                $context[ self::OPTION_OBJECT ],
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                $context[ self::OPTION_OBJECT_FOR_MAP ]
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            );
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        } else {
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            $options = $this->contextToOptions($context);
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            $results = Yaml::parse($data, $options);
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        }
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        return $results;
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    }
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    /**
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     * Checks whether the deserializer can decode from given format.
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     *
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     * We only support yaml.
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     *
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     * @param string $format format name
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     *
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     * @return bool
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     */
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    public function supportsDecoding($format)
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    {
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        return $format == self::SUPPORTED_ENCODING_YAML;
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    }
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    /**
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     * Merges the default options of the Yaml Decoder with the passed context.
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     *
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     * @param array $context
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     *
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     * @return array
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     */
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    private function resolveContext(array $context)
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    {
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        $defaultOptions = [
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            self::OPTION_EXCEPTION_ON_INVALID_TYPE => $this->exceptionOnInvalidType,
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            self::OPTION_OBJECT                    => $this->object,
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            self::OPTION_OBJECT_FOR_MAP            => $this->objectForMap,
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            self::OPTION_DATE_TIME                 => $this->dateTime,
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        ];
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        return array_merge($defaultOptions, $context);
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    }
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    /**
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     * Convert the context to options understood by the parser
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     *
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     * @param array $options
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     *
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     * @return int
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     */
128 View Code Duplication
    private function contextToOptions(array $options)
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Duplication introduced by
This method seems to be duplicated in your project.

Duplicated code is one of the most pungent code smells. If you need to duplicate the same code in three or more different places, we strongly encourage you to look into extracting the code into a single class or operation.

You can also find more detailed suggestions in the “Code” section of your repository.

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    {
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        $optionToBitMap = [
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            self::OPTION_EXCEPTION_ON_INVALID_TYPE => Yaml::PARSE_EXCEPTION_ON_INVALID_TYPE,
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            self::OPTION_OBJECT                    => Yaml::PARSE_OBJECT,
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            self::OPTION_OBJECT_FOR_MAP            => Yaml::PARSE_OBJECT_FOR_MAP,
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            self::OPTION_DATE_TIME                 => Yaml::PARSE_DATETIME,
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        ];
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        $bitMaskedOption = 0;
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        foreach ($optionToBitMap as $option => $bitMask) {
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            if ($options[ $option ]) {
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                $bitMaskedOption = $bitMaskedOption | $bitMask;
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            }
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        }
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        return $bitMaskedOption;
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    }
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    private function isYamlOldStyleInterface()
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    {
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        return !defined("Symfony\\Component\\Yaml\\Yaml::PARSE_EXCEPTION_ON_INVALID_TYPE");
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    }
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}
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