Lexer - Code Metrics - schmittjoh/serializer - Measure and Improve Code Quality continuously with Scrutinizer

Lexer A
last analyzed 2025-05-15 09:33 UTC

↳ Parent: Project

Complexity

Total Complexity

Size/Duplication

Total Lines	99
Duplicated Lines	0 %

Importance

Changes	3
Bugs	0	Features	0

Metric	Value
wmc	18
eloc	54
c	3
b	0
f	0
dl	0
loc	99
rs	10

4 Methods

Rating	Name	Size	Complexity
A	getCatchablePatterns()	11	1
A	parse()	6	2
A	getNonCatchablePatterns()	3	1
C	getType()	52	14

<?php

declare(strict_types=1);

namespace JMS\Serializer\Type;

use Doctrine\Common\Lexer\AbstractLexer;
use JMS\Serializer\Type\Exception\SyntaxError;

/**
 * @internal
 */
final class Lexer extends AbstractLexer
{
    public const T_UNKNOWN = 0;
    public const T_INTEGER = 1;
    public const T_STRING = 2;
    public const T_FLOAT = 3;
    public const T_ARRAY_START = 4;
    public const T_ARRAY_END = 5;
    public const T_COMMA = 6;
    public const T_TYPE_START = 7;
    public const T_TYPE_END = 8;
    public const T_IDENTIFIER = 9;
    public const T_NULL = 10;

    public function parse(string $type)
    {
        try {
            return $this->getType($type);
        } catch (\Throwable $e) {
            throw new SyntaxError($e->getMessage(), 0, $e);
        }
    }

    protected function getCatchablePatterns(): array
    {
        return [
            '[a-z][a-z_\\\\0-9]*', // identifier or qualified name
            "'(?:[^']|'')*'", // single quoted strings
            '(?:[0-9]+(?:[\.][0-9]+)*)(?:e[+-]?[0-9]+)?', // numbers
            '"(?:[^"]|"")*"', // double quoted strings
            '<',
            '>',
            '\\[',
            '\\]',
        ];
    }

    protected function getNonCatchablePatterns(): array
    {
        return ['\s+'];
    }

    /**
     * {@inheritDoc}
     *
     * @return int|string|null
     */
    protected function getType(&$value)
    {
        $type = self::T_UNKNOWN;

        switch (true) {
            // Recognize numeric values
            case is_numeric($value):
                if (false !== strpos($value, '.') || false !== stripos($value, 'e')) {
                    return self::T_FLOAT;
interface HasName {
    /** @return string */
    public function getName();
}

class Name {
    public $name;
}

class User implements HasName {
    /** @return string|Name */
    public function getName() {
        return new Name('foo'); // This is a violation of the ``HasName`` interface
                                // which only allows a string value to be returned.
    }
}
                }

                return self::T_INTEGER;
interface HasName {
    /** @return string */
    public function getName();
}

class Name {
    public $name;
}

class User implements HasName {
    /** @return string|Name */
    public function getName() {
        return new Name('foo'); // This is a violation of the ``HasName`` interface
                                // which only allows a string value to be returned.
    }
}

            // Recognize quoted strings
            case "'" === $value[0]:
                $value = str_replace("''", "'", substr($value, 1, strlen($value) - 2));

                return self::T_STRING;
interface HasName {
    /** @return string */
    public function getName();
}

class Name {
    public $name;
}

class User implements HasName {
    /** @return string|Name */
    public function getName() {
        return new Name('foo'); // This is a violation of the ``HasName`` interface
                                // which only allows a string value to be returned.
    }
}

            case '"' === $value[0]:
                $value = str_replace('""', '"', substr($value, 1, strlen($value) - 2));

                return self::T_STRING;
interface HasName {
    /** @return string */
    public function getName();
}

class Name {
    public $name;
}

class User implements HasName {
    /** @return string|Name */
    public function getName() {
        return new Name('foo'); // This is a violation of the ``HasName`` interface
                                // which only allows a string value to be returned.
    }
}

            case 'null' === $value:
                return self::T_NULL;
interface HasName {
    /** @return string */
    public function getName();
}

class Name {
    public $name;
}

class User implements HasName {
    /** @return string|Name */
    public function getName() {
        return new Name('foo'); // This is a violation of the ``HasName`` interface
                                // which only allows a string value to be returned.
    }
}

            // Recognize identifiers, aliased or qualified names
            case ctype_alpha($value[0]) || '\\' === $value[0]:
                return self::T_IDENTIFIER;
interface HasName {
    /** @return string */
    public function getName();
}

class Name {
    public $name;
}

class User implements HasName {
    /** @return string|Name */
    public function getName() {
        return new Name('foo'); // This is a violation of the ``HasName`` interface
                                // which only allows a string value to be returned.
    }
}

            case ',' === $value:
                return self::T_COMMA;
interface HasName {
    /** @return string */
    public function getName();
}

class Name {
    public $name;
}

class User implements HasName {
    /** @return string|Name */
    public function getName() {
        return new Name('foo'); // This is a violation of the ``HasName`` interface
                                // which only allows a string value to be returned.
    }
}

            case '>' === $value:
                return self::T_TYPE_END;
interface HasName {
    /** @return string */
    public function getName();
}

class Name {
    public $name;
}

class User implements HasName {
    /** @return string|Name */
    public function getName() {
        return new Name('foo'); // This is a violation of the ``HasName`` interface
                                // which only allows a string value to be returned.
    }
}

            case '<' === $value:
                return self::T_TYPE_START;
interface HasName {
    /** @return string */
    public function getName();
}

class Name {
    public $name;
}

class User implements HasName {
    /** @return string|Name */
    public function getName() {
        return new Name('foo'); // This is a violation of the ``HasName`` interface
                                // which only allows a string value to be returned.
    }
}

            case ']' === $value:
                return self::T_ARRAY_END;
interface HasName {
    /** @return string */
    public function getName();
}

class Name {
    public $name;
}

class User implements HasName {
    /** @return string|Name */
    public function getName() {
        return new Name('foo'); // This is a violation of the ``HasName`` interface
                                // which only allows a string value to be returned.
    }
}

            case '[' === $value:
                return self::T_ARRAY_START;
interface HasName {
    /** @return string */
    public function getName();
}

class Name {
    public $name;
}

class User implements HasName {
    /** @return string|Name */
    public function getName() {
        return new Name('foo'); // This is a violation of the ``HasName`` interface
                                // which only allows a string value to be returned.
    }
}

            // Default
            default:
                // Do nothing
        }

        return $type;
interface HasName {
    /** @return string */
    public function getName();
}

class Name {
    public $name;
}

class User implements HasName {
    /** @return string|Name */
    public function getName() {
        return new Name('foo'); // This is a violation of the ``HasName`` interface
                                // which only allows a string value to be returned.
    }
}
    }
}


1			<?php
2
3			declare(strict_types=1);
4
5			namespace JMS\Serializer\Type;
6
7			use Doctrine\Common\Lexer\AbstractLexer;
8			use JMS\Serializer\Type\Exception\SyntaxError;
9
10			/**
11			* @internal
12			*/
13			final class Lexer extends AbstractLexer
14			{
15			public const T_UNKNOWN = 0;
16			public const T_INTEGER = 1;
17			public const T_STRING = 2;
18			public const T_FLOAT = 3;
19			public const T_ARRAY_START = 4;
20			public const T_ARRAY_END = 5;
21			public const T_COMMA = 6;
22			public const T_TYPE_START = 7;
23			public const T_TYPE_END = 8;
24			public const T_IDENTIFIER = 9;
25			public const T_NULL = 10;
26
27			public function parse(string $type)
28			{
29			try {
30			return $this->getType($type);
31			} catch (\Throwable $e) {
32			throw new SyntaxError($e->getMessage(), 0, $e);
33			}
34			}
35
36			protected function getCatchablePatterns(): array
37			{
38			return [
39			'[a-z][a-z_\\\\0-9]*', // identifier or qualified name
40			"'(?:[^']\|'')*'", // single quoted strings
41			'(?:[0-9]+(?:[\.][0-9]+)*)(?:e[+-]?[0-9]+)?', // numbers
42			'"(?:[^"]\|"")*"', // double quoted strings
43			'<',
44			'>',
45			'\\[',
46			'\\]',
47			];
48			}
49
50			protected function getNonCatchablePatterns(): array
51			{
52			return ['\s+'];
53			}
54
55			/**
56			* {@inheritDoc}
57			*
58			* @return int\|string\|null
59			*/
60			protected function getType(&$value)
61			{
62			$type = self::T_UNKNOWN;
63
64			switch (true) {
65			// Recognize numeric values
66			case is_numeric($value):
67			if (false !== strpos($value, '.') \|\| false !== stripos($value, 'e')) {
68			return self::T_FLOAT;
			0 ignored issues – show Bug Best Practice introduced 2022-12-23 11:22 UTC by Report Bug Copy Issue Report The expression `return self::T_FLOAT` returns the type `integer` which is incompatible with the return type mandated by `Doctrine\Common\Lexer\AbstractLexer::getType()` of `Doctrine\Common\Lexer\T\|null`. In the issue above, the returned value is violating the contract defined by the mentioned interface. Let's take a look at an example: interface HasName { /** @return string / public function getName(); } class Name { public $name; } class User implements HasName { /* @return string\|Name */ public function getName() { return new Name('foo'); // This is a violation of the ``HasName`` interface // which only allows a string value to be returned. } } Loading history...
69			}
70
71			return self::T_INTEGER;
			0 ignored issues – show Bug Best Practice introduced 2022-12-23 11:22 UTC by Report Bug Copy Issue Report The expression `return self::T_INTEGER` returns the type `integer` which is incompatible with the return type mandated by `Doctrine\Common\Lexer\AbstractLexer::getType()` of `Doctrine\Common\Lexer\T\|null`. In the issue above, the returned value is violating the contract defined by the mentioned interface. Let's take a look at an example: interface HasName { /** @return string / public function getName(); } class Name { public $name; } class User implements HasName { /* @return string\|Name */ public function getName() { return new Name('foo'); // This is a violation of the ``HasName`` interface // which only allows a string value to be returned. } } Loading history...
72
73			// Recognize quoted strings
74			case "'" === $value[0]:
75			$value = str_replace("''", "'", substr($value, 1, strlen($value) - 2));
76
77			return self::T_STRING;
			0 ignored issues – show Bug Best Practice introduced 2022-12-23 11:22 UTC by Report Bug Copy Issue Report The expression `return self::T_STRING` returns the type `integer` which is incompatible with the return type mandated by `Doctrine\Common\Lexer\AbstractLexer::getType()` of `Doctrine\Common\Lexer\T\|null`. In the issue above, the returned value is violating the contract defined by the mentioned interface. Let's take a look at an example: interface HasName { /** @return string / public function getName(); } class Name { public $name; } class User implements HasName { /* @return string\|Name */ public function getName() { return new Name('foo'); // This is a violation of the ``HasName`` interface // which only allows a string value to be returned. } } Loading history...
78
79			case '"' === $value[0]:
80			$value = str_replace('""', '"', substr($value, 1, strlen($value) - 2));
81
82			return self::T_STRING;
			0 ignored issues – show Bug Best Practice introduced 2022-12-23 11:22 UTC by Report Bug Copy Issue Report The expression `return self::T_STRING` returns the type `integer` which is incompatible with the return type mandated by `Doctrine\Common\Lexer\AbstractLexer::getType()` of `Doctrine\Common\Lexer\T\|null`. In the issue above, the returned value is violating the contract defined by the mentioned interface. Let's take a look at an example: interface HasName { /** @return string / public function getName(); } class Name { public $name; } class User implements HasName { /* @return string\|Name */ public function getName() { return new Name('foo'); // This is a violation of the ``HasName`` interface // which only allows a string value to be returned. } } Loading history...
83
84			case 'null' === $value:
85			return self::T_NULL;
			0 ignored issues – show Bug Best Practice introduced 2022-12-23 11:22 UTC by Report Bug Copy Issue Report The expression `return self::T_NULL` returns the type `integer` which is incompatible with the return type mandated by `Doctrine\Common\Lexer\AbstractLexer::getType()` of `Doctrine\Common\Lexer\T\|null`. In the issue above, the returned value is violating the contract defined by the mentioned interface. Let's take a look at an example: interface HasName { /** @return string / public function getName(); } class Name { public $name; } class User implements HasName { /* @return string\|Name */ public function getName() { return new Name('foo'); // This is a violation of the ``HasName`` interface // which only allows a string value to be returned. } } Loading history...
86
87			// Recognize identifiers, aliased or qualified names
88			case ctype_alpha($value[0]) \|\| '\\' === $value[0]:
89			return self::T_IDENTIFIER;
			0 ignored issues – show Bug Best Practice introduced 2022-12-23 11:22 UTC by Report Bug Copy Issue Report The expression `return self::T_IDENTIFIER` returns the type `integer` which is incompatible with the return type mandated by `Doctrine\Common\Lexer\AbstractLexer::getType()` of `Doctrine\Common\Lexer\T\|null`. In the issue above, the returned value is violating the contract defined by the mentioned interface. Let's take a look at an example: interface HasName { /** @return string / public function getName(); } class Name { public $name; } class User implements HasName { /* @return string\|Name */ public function getName() { return new Name('foo'); // This is a violation of the ``HasName`` interface // which only allows a string value to be returned. } } Loading history...
90
91			case ',' === $value:
92			return self::T_COMMA;
			0 ignored issues – show Bug Best Practice introduced 2022-12-23 11:22 UTC by Report Bug Copy Issue Report The expression `return self::T_COMMA` returns the type `integer` which is incompatible with the return type mandated by `Doctrine\Common\Lexer\AbstractLexer::getType()` of `Doctrine\Common\Lexer\T\|null`. In the issue above, the returned value is violating the contract defined by the mentioned interface. Let's take a look at an example: interface HasName { /** @return string / public function getName(); } class Name { public $name; } class User implements HasName { /* @return string\|Name */ public function getName() { return new Name('foo'); // This is a violation of the ``HasName`` interface // which only allows a string value to be returned. } } Loading history...
93
94			case '>' === $value:
95			return self::T_TYPE_END;
			0 ignored issues – show Bug Best Practice introduced 2022-12-23 11:22 UTC by Report Bug Copy Issue Report The expression `return self::T_TYPE_END` returns the type `integer` which is incompatible with the return type mandated by `Doctrine\Common\Lexer\AbstractLexer::getType()` of `Doctrine\Common\Lexer\T\|null`. In the issue above, the returned value is violating the contract defined by the mentioned interface. Let's take a look at an example: interface HasName { /** @return string / public function getName(); } class Name { public $name; } class User implements HasName { /* @return string\|Name */ public function getName() { return new Name('foo'); // This is a violation of the ``HasName`` interface // which only allows a string value to be returned. } } Loading history...
96
97			case '<' === $value:
98			return self::T_TYPE_START;
			0 ignored issues – show Bug Best Practice introduced 2022-12-23 11:22 UTC by Report Bug Copy Issue Report The expression `return self::T_TYPE_START` returns the type `integer` which is incompatible with the return type mandated by `Doctrine\Common\Lexer\AbstractLexer::getType()` of `Doctrine\Common\Lexer\T\|null`. In the issue above, the returned value is violating the contract defined by the mentioned interface. Let's take a look at an example: interface HasName { /** @return string / public function getName(); } class Name { public $name; } class User implements HasName { /* @return string\|Name */ public function getName() { return new Name('foo'); // This is a violation of the ``HasName`` interface // which only allows a string value to be returned. } } Loading history...
99
100			case ']' === $value:
101			return self::T_ARRAY_END;
			0 ignored issues – show Bug Best Practice introduced 2022-12-23 11:22 UTC by Report Bug Copy Issue Report The expression `return self::T_ARRAY_END` returns the type `integer` which is incompatible with the return type mandated by `Doctrine\Common\Lexer\AbstractLexer::getType()` of `Doctrine\Common\Lexer\T\|null`. In the issue above, the returned value is violating the contract defined by the mentioned interface. Let's take a look at an example: interface HasName { /** @return string / public function getName(); } class Name { public $name; } class User implements HasName { /* @return string\|Name */ public function getName() { return new Name('foo'); // This is a violation of the ``HasName`` interface // which only allows a string value to be returned. } } Loading history...
102
103			case '[' === $value:
104			return self::T_ARRAY_START;
			0 ignored issues – show Bug Best Practice introduced 2022-12-23 11:22 UTC by Report Bug Copy Issue Report The expression `return self::T_ARRAY_START` returns the type `integer` which is incompatible with the return type mandated by `Doctrine\Common\Lexer\AbstractLexer::getType()` of `Doctrine\Common\Lexer\T\|null`. In the issue above, the returned value is violating the contract defined by the mentioned interface. Let's take a look at an example: interface HasName { /** @return string / public function getName(); } class Name { public $name; } class User implements HasName { /* @return string\|Name */ public function getName() { return new Name('foo'); // This is a violation of the ``HasName`` interface // which only allows a string value to be returned. } } Loading history...
105
106			// Default
107			default:
108			// Do nothing
109			}
110
111			return $type;
			0 ignored issues – show Bug Best Practice introduced 2022-12-23 11:22 UTC by Report Bug Copy Issue Report The expression `return $type` returns the type `integer` which is incompatible with the return type mandated by `Doctrine\Common\Lexer\AbstractLexer::getType()` of `Doctrine\Common\Lexer\T\|null`. In the issue above, the returned value is violating the contract defined by the mentioned interface. Let's take a look at an example: interface HasName { /** @return string / public function getName(); } class Name { public $name; } class User implements HasName { /* @return string\|Name */ public function getName() { return new Name('foo'); // This is a violation of the ``HasName`` interface // which only allows a string value to be returned. } } Loading history...
112			}
113			}
114

schmittjoh / serializer

Lexer A last analyzed 2025-05-15 09:33 UTC

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Lexer A
last analyzed 2025-05-15 09:33 UTC