ErrorHandler - Code Metrics - dazzle-php/throwable - Measure and Improve Code Quality continuously with Scrutinizer

ErrorHandler A
last analyzed 2017-08-06 20:52 UTC

↳ Parent: Project

Complexity

Total Complexity

Size/Duplication

Total Lines	146
Duplicated Lines	0 %

Coupling/Cohesion

Components	1
Dependencies	3

Test Coverage

Coverage

80.38%

Importance

Changes

Metric	Value
wmc	24
lcom	1
cbo	3
dl	0
loc	146
ccs	41
cts	51
cp	0.8038
rs	10
c	0
b	0
f	0

3 Methods

Rating	Name	Size	Complexity
A	handleError()	16	4
B	handleShutdown()	22	4
C	getSystemError()	53	16

<?php

namespace Dazzle\Throwable;

use Dazzle\Throwable\Error\FatalError;
use Dazzle\Throwable\Error\NoticeError;
use Dazzle\Throwable\Error\WarningError;

abstract class ErrorHandler
{
    /**
     * @var int
     */
    const E_UNSUPPORTED = 8;

    /**
     * @var int
     */
    const E_ERROR = 4;

    /**
     * @var int
     */
    const E_WARNING = 2;

    /**
     * @var int
     */
    const E_NOTICE = 1;

    /**
     * @var string
     */
    protected static $errHandler = '\Dazzle\Throwable\Error::toString';

    /**
     * @var string
     */
    protected static $excHandler = '\Dazzle\Throwable\Exception::toString';

    /**
     * Invoke default Error Handler.
     *
     * @param int $code
     * @param string $message
     * @param string $file
     * @param int $line
     * @throws FatalError
     * @throws NoticeError
     * @throws WarningError
     */
    public static function handleError($code, $message, $file, $line)
    {
        $list = static::getSystemError($code);
class YourClass
{
    private static function getTemperature() {
        return "3422 °C";
}

public static function getSomeVariable()
{
    return static::getTemperature();
}
        $name = $list[0];
$myVar = 'Value';
$higher = false;

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

        $message = "\"$message\" in $file:$line";

        switch ($type)
        {
            case static::E_NOTICE:  throw new NoticeError($message);
switch ($expr) {
case "A":
    doSomething(); //right
    break;
case "B":

    doSomethingElse(); //wrong
    break;
            case static::E_WARNING: throw new WarningError($message);
switch ($expr) {
case "A":
    doSomething(); //right
    break;
case "B":

    doSomethingElse(); //wrong
    break;
            case static::E_ERROR:   throw new FatalError($message);
switch ($expr) {
case "A":
    doSomething(); //right
    break;
case "B":

    doSomethingElse(); //wrong
    break;
            default:                return;
switch ($expr) {
    default:
        doSomething(); //right
        break;
}


switch ($expr) {
    default:

        doSomething(); //wrong
        break;
}
        }
    }

    /**
     * Invoke default Shutdown Handler.
     *
     * @param bool $forceKill
     */
    public static function handleShutdown($forceKill = false)
    {
        $err = error_get_last();

        try
        {
            static::handleError($err['type'], $err['message'], $err['file'], $err['line']);
        }
        catch (\Error $ex)

        {
            echo call_user_func(static::$errHandler, $ex) . PHP_EOL;
        }
        catch (\Exception $ex)
        {
            echo call_user_func(static::$excHandler, $ex) . PHP_EOL;
        }

        if ($forceKill)
        {
            posix_kill(posix_getpid(), 9);
        }
    }

    /**
     * @param int $type
     * @return array
     */
    private static function getSystemError($type)
    {
        switch($type)
        {
            case E_ERROR: // 1 //
                return [ 'E_ERROR',             static::E_ERROR ];

            case E_WARNING: // 2 //
                return [ 'E_WARNING',           static::E_WARNING ];

            case E_PARSE: // 4 //
                return [ 'E_PARSE',             static::E_ERROR ];

            case E_NOTICE: // 8 //
                return [ 'E_NOTICE',            static::E_NOTICE ];

            case E_CORE_ERROR: // 16 //
                return [ 'E_CORE_ERROR',        static::E_ERROR ];

            case E_CORE_WARNING: // 32 //
                return [ 'E_CORE_WARNING',      static::E_WARNING ];

            case E_COMPILE_ERROR: // 64 //
                return [ 'E_COMPILE_ERROR',     static::E_ERROR ];

            case E_COMPILE_WARNING: // 128 //
                return [ 'E_COMPILE_WARNING',   static::E_WARNING ];

            case E_USER_ERROR: // 256 //
                return [ 'E_USER_ERROR',        static::E_ERROR ];

            case E_USER_WARNING: // 512 //
                return [ 'E_USER_WARNING',      static::E_WARNING ];

            case E_USER_NOTICE: // 1024 //
                return [ 'E_USER_NOTICE',       static::E_NOTICE ];

            case E_STRICT: // 2048 //
                return [ 'E_STRICT',            static::E_ERROR ];

            case E_RECOVERABLE_ERROR: // 4096 //
                return [ 'E_RECOVERABLE_ERROR', static::E_WARNING ];

            case E_DEPRECATED: // 8192 //
                return [ 'E_DEPRECATED',        static::E_NOTICE ];

            case E_USER_DEPRECATED: // 16384 //
                return [ 'E_USER_DEPRECATED',   static::E_NOTICE ];

            default:
                return [ 'E_UNKNOWN',           static::E_UNSUPPORTED ];
        }
    }
}


1		<?php
2
3		namespace Dazzle\Throwable;
4
5		use Dazzle\Throwable\Error\FatalError;
6		use Dazzle\Throwable\Error\NoticeError;
7		use Dazzle\Throwable\Error\WarningError;
8
9		abstract class ErrorHandler
10		{
11		/**
12		* @var int
13		*/
14		const E_UNSUPPORTED = 8;
15
16		/**
17		* @var int
18		*/
19		const E_ERROR = 4;
20
21		/**
22		* @var int
23		*/
24		const E_WARNING = 2;
25
26		/**
27		* @var int
28		*/
29		const E_NOTICE = 1;
30
31		/**
32		* @var string
33		*/
34		protected static $errHandler = '\Dazzle\Throwable\Error::toString';
35
36		/**
37		* @var string
38		*/
39		protected static $excHandler = '\Dazzle\Throwable\Exception::toString';
40
41		/**
42		* Invoke default Error Handler.
43		*
44		* @param int $code
45		* @param string $message
46		* @param string $file
47		* @param int $line
48		* @throws FatalError
49		* @throws NoticeError
50		* @throws WarningError
51		*/
52	16	public static function handleError($code, $message, $file, $line)
53		{
54	16	$list = static::getSystemError($code);
		0 ignored issues – show Bug introduced 2017-06-17 21:46 UTC by Report Bug Copy Issue Report Since `getSystemError()` is declared private, calling it with `static` will lead to errors in possible sub-classes. You can either use `self`, or increase the visibility of `getSystemError()` to at least protected. Let’s assume you have a class which uses late-static binding: class YourClass { private static function getTemperature() { return "3422 °C"; } public static function getSomeVariable() { return static::getTemperature(); } } The code above will run fine in your PHP runtime. However, if you now create a sub-class and call the `getSomeVariable()` on that sub-class, you will receive a runtime error: class YourSubClass extends YourClass { private static function getTemperature() { return "-182 °C"; } } print YourSubClass::getSomeVariable(); // Will cause an access error. In the case above, it makes sense to update `SomeClass` to use `self` instead: class YourClass { private static function getTemperature() { return "3422 °C"; } public static function getSomeVariable() { return self::getTemperature(); } } Loading history...
55	16	$name = $list[0];
		0 ignored issues – show Unused Code introduced 2017-06-17 21:46 UTC by Report Bug Copy Issue Report `$name` 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. Loading history...
56	16	$type = $list[1];
57
58	16	$message = "\"$message\" in $file:$line";
59
60		switch ($type)
61		{
62	16	case static::E_NOTICE: throw new NoticeError($message);
		0 ignored issues – show Coding Style introduced 2017-06-17 21:46 UTC by Report Bug Copy Issue Report The case body in a switch statement must start on the line following the statement. According to the PSR-2, the body of a case statement must start on the line immediately following the case statement. switch ($expr) { case "A": doSomething(); //right break; case "B": doSomethingElse(); //wrong break; } To learn more about the PSR-2 coding standard, please refer to the PHP-Fig. Loading history... Coding Style introduced 2017-06-17 21:46 UTC by Report Bug Copy Issue Report Terminating statement must be on a line by itself As per the PSR-2 coding standard, the `break` (or other terminating) statement must be on a line of its own. switch ($expr) { case "A": doSomething(); break; //wrong case "B": doSomething(); break; //right case "C:": doSomething(); return true; //right } To learn more about the PSR-2 coding standard, please refer to the PHP-Fig. Loading history...
63	12	case static::E_WARNING: throw new WarningError($message);
		0 ignored issues – show Coding Style introduced 2017-06-17 21:46 UTC by Report Bug Copy Issue Report The case body in a switch statement must start on the line following the statement. According to the PSR-2, the body of a case statement must start on the line immediately following the case statement. switch ($expr) { case "A": doSomething(); //right break; case "B": doSomethingElse(); //wrong break; } To learn more about the PSR-2 coding standard, please refer to the PHP-Fig. Loading history... Coding Style introduced 2017-06-17 21:46 UTC by Report Bug Copy Issue Report Terminating statement must be on a line by itself As per the PSR-2 coding standard, the `break` (or other terminating) statement must be on a line of its own. switch ($expr) { case "A": doSomething(); break; //wrong case "B": doSomething(); break; //right case "C:": doSomething(); return true; //right } To learn more about the PSR-2 coding standard, please refer to the PHP-Fig. Loading history...
64	7	case static::E_ERROR: throw new FatalError($message);
		0 ignored issues – show Coding Style introduced 2017-06-17 21:46 UTC by Report Bug Copy Issue Report The case body in a switch statement must start on the line following the statement. According to the PSR-2, the body of a case statement must start on the line immediately following the case statement. switch ($expr) { case "A": doSomething(); //right break; case "B": doSomethingElse(); //wrong break; } To learn more about the PSR-2 coding standard, please refer to the PHP-Fig. Loading history... Coding Style introduced 2017-06-17 21:46 UTC by Report Bug Copy Issue Report Terminating statement must be on a line by itself As per the PSR-2 coding standard, the `break` (or other terminating) statement must be on a line of its own. switch ($expr) { case "A": doSomething(); break; //wrong case "B": doSomething(); break; //right case "C:": doSomething(); return true; //right } To learn more about the PSR-2 coding standard, please refer to the PHP-Fig. Loading history...
65	1	default: return;
		0 ignored issues – show Coding Style introduced 2017-06-17 21:46 UTC by Report Bug Copy Issue Report The default body in a switch statement must start on the line following the statement. According to the PSR-2, the body of a default statement must start on the line immediately following the statement. switch ($expr) { default: doSomething(); //right break; } switch ($expr) { default: doSomething(); //wrong break; } To learn more about the PSR-2 coding standard, please refer to the PHP-Fig. Loading history... Coding Style introduced 2017-06-17 21:46 UTC by Report Bug Copy Issue Report Terminating statement must be on a line by itself As per the PSR-2 coding standard, the `break` (or other terminating) statement must be on a line of its own. switch ($expr) { case "A": doSomething(); break; //wrong case "B": doSomething(); break; //right case "C:": doSomething(); return true; //right } To learn more about the PSR-2 coding standard, please refer to the PHP-Fig. Loading history...
66		}
67		}
68
69		/**
70		* Invoke default Shutdown Handler.
71		*
72		* @param bool $forceKill
73		*/
74		public static function handleShutdown($forceKill = false)
75		{
76		$err = error_get_last();
77
78		try
79		{
80		static::handleError($err['type'], $err['message'], $err['file'], $err['line']);
81		}
82		catch (\Error $ex)
		0 ignored issues – show Bug introduced 2017-06-17 21:46 UTC by Report Bug Copy Issue Report The class `Error` does not exist. Did you forget a USE statement, or did you not list all dependencies? Scrutinizer analyzes your `composer.json`/`composer.lock` file if available to determine the classes, and functions that are defined by your dependencies. It seems like the listed class was neither found in your dependencies, nor was it found in the analyzed files in your repository. If you are using some other form of dependency management, you might want to disable this analysis. Loading history...
83		{
84		echo call_user_func(static::$errHandler, $ex) . PHP_EOL;
85		}
86		catch (\Exception $ex)
87		{
88		echo call_user_func(static::$excHandler, $ex) . PHP_EOL;
89		}
90
91		if ($forceKill)
92		{
93		posix_kill(posix_getpid(), 9);
94		}
95		}
96
97		/**
98		* @param int $type
99		* @return array
100		*/
101	16	private static function getSystemError($type)
102		{
103		switch($type)
104		{
105	16	case E_ERROR: // 1 //
106	1	return [ 'E_ERROR', static::E_ERROR ];
107
108	15	case E_WARNING: // 2 //
109	1	return [ 'E_WARNING', static::E_WARNING ];
110
111	14	case E_PARSE: // 4 //
112	1	return [ 'E_PARSE', static::E_ERROR ];
113
114	13	case E_NOTICE: // 8 //
115	1	return [ 'E_NOTICE', static::E_NOTICE ];
116
117	12	case E_CORE_ERROR: // 16 //
118	1	return [ 'E_CORE_ERROR', static::E_ERROR ];
119
120	11	case E_CORE_WARNING: // 32 //
121	1	return [ 'E_CORE_WARNING', static::E_WARNING ];
122
123	10	case E_COMPILE_ERROR: // 64 //
124	1	return [ 'E_COMPILE_ERROR', static::E_ERROR ];
125
126	9	case E_COMPILE_WARNING: // 128 //
127	1	return [ 'E_COMPILE_WARNING', static::E_WARNING ];
128
129	8	case E_USER_ERROR: // 256 //
130	1	return [ 'E_USER_ERROR', static::E_ERROR ];
131
132	7	case E_USER_WARNING: // 512 //
133	1	return [ 'E_USER_WARNING', static::E_WARNING ];
134
135	6	case E_USER_NOTICE: // 1024 //
136	1	return [ 'E_USER_NOTICE', static::E_NOTICE ];
137
138	5	case E_STRICT: // 2048 //
139	1	return [ 'E_STRICT', static::E_ERROR ];
140
141	4	case E_RECOVERABLE_ERROR: // 4096 //
142	1	return [ 'E_RECOVERABLE_ERROR', static::E_WARNING ];
143
144	3	case E_DEPRECATED: // 8192 //
145	1	return [ 'E_DEPRECATED', static::E_NOTICE ];
146
147	2	case E_USER_DEPRECATED: // 16384 //
148	1	return [ 'E_USER_DEPRECATED', static::E_NOTICE ];
149
150		default:
151	1	return [ 'E_UNKNOWN', static::E_UNSUPPORTED ];
152		}
153		}
154		}
155

dazzle-php / throwable

ErrorHandler A last analyzed 2017-08-06 20:52 UTC

Complexity

Size/Duplication

Coupling/Cohesion

Test Coverage

Importance

3 Methods

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ErrorHandler A
last analyzed 2017-08-06 20:52 UTC