Emitter::removeListener() - Code Metrics - jnjxp/jnjxp.event - Measure and Improve Code Quality continuously with Scrutinizer

Emitter::removeListener() A
last analyzed 2016-10-10 18:18 UTC

↳ Parent: Emitter

Complexity

Conditions	3
Paths	3

Size

Total Lines	9
Code Lines	5

Duplication

Lines	0
Ratio	0 %

Code Coverage

Tests	6
CRAP Score	3

Importance

Changes

Metric	Value
dl	0
loc	9
ccs	6
cts	6
cp	1
rs	9.6666
c	0
b	0
f	0
cc	3
eloc	5
nc	3
nop	2
crap	3

<?php
/**
 * Event Emitter (HEAVILY based on evenement/evenement)
 *
 * PHP version 5
 *
 * Copyright (C) 2016 Jake Johns
 *
 * This software may be modified and distributed under the terms
 * of the MIT license.  See the LICENSE file for details.
 *
 * @category  Emitter
 * @package   Jnjxp\Event
 * @author    Jake Johns <[email protected]>
 * @copyright 2016 Jake Johns
 * @license   http://jnj.mit-license.org/2016 MIT License
 * @link      https://github.com/jnjxp/jnjxp.event
 */

namespace Jnjxp\Event;

/**
 * Emitter
 *
 * @category Emitter
 * @package  Jnjxp\Event
 * @author   Jake Johns <[email protected]>
 * @license  http://jnj.mit-license.org/ MIT License
 * @link     https://github.com/jnjxp/jnjxp.event
 */
class Emitter
{
    /**
     * Listener specs
     *
     * @var array
     *
     * @access protected
     */
    protected $listeners = [];

    /**
     * Resolver
     *
     * @var callable
     *
     * @access protected
     */
    protected $resolver;

    /**
     * __construct
     *
     * @param callable $resolver spec resolver
     *
     * @access public
     */
    public function __construct(callable $resolver = null)
    {
        $this->resolver = $resolver;
    }

    /**
     * Add Listener to event
     *
     * @param string $event    name of event
     * @param mixed  $listener listener spec
     *
     * @return null
     *
     * @access public
     *
     * @SuppressWarnings(PHPMD.ShortMethodName)
     */
    public function on($event, $listener)
    {
        if (!isset($this->listeners[$event])) {
            $this->listeners[$event] = [];
        }
        $this->listeners[$event][] = $listener;
    }

    /**
     * Add one time listener
     *
     * @param string $event    name of event
     * @param mixed  $listener listener spec
     *
     * @return null
     *
     * @access public
     */
    public function once($event, $listener)
    {
        $onceListener = function () use (&$onceListener, $event, $listener) {
            $this->removeListener($event, $onceListener);
            $listener = $this->resolve($listener);
$x = 1;
$callable = function() use ($x) {
    $x = 2; // Not visible in outer scope. If you would like this, how
            // about using a different variable name than $x?
};

$callable();
var_dump($x); // integer(1)
            call_user_func_array($listener, func_get_args());
        };
        $this->on($event, $onceListener);
    }

    /**
     * Remove listener
     *
     * @param string $event    name of event
     * @param mixed  $listener listener spec
     *
     * @return null
     *
     * @access public
     */
    public function removeListener($event, $listener)
    {
        if (isset($this->listeners[$event])) {
            $index = array_search($listener, $this->listeners[$event], true);
            if (false !== $index) {
                unset($this->listeners[$event][$index]);
            }
        }
    }

    /**
     * Remove all listeners
     *
     * @param null|string $event name of event
     *
     * @return null
     *
     * @access public
     */
    public function removeAllListeners($event = null)
    {
        if ($event !== null) {
            unset($this->listeners[$event]);
        } else {
            $this->listeners = [];
        }
    }

    /**
     * Get listeners for event
     *
     * @param string $event event anme
     *
     * @return array
     *
     * @access public
     */
    public function listeners($event)
    {
        return isset($this->listeners[$event]) ? $this->listeners[$event] : [];
    }

    /**
     * Emit event signal
     *
     * @param string $event     name of event
     * @param array  $arguments event arguments
     *
     * @return null
     *
     * @access public
     */
    public function emit($event, array $arguments = [])
    {
        foreach ($this->listeners($event) as $listener) {
            $listener = $this->resolve($listener);
            call_user_func_array($listener, $arguments);
        }
    }

    /**
     * Resolve
     *
     * @param mixed $spec listener spec
     *
     * @return mixed
     *
     * @access protected
     */
    protected function resolve($spec)
    {
        if (! $this->resolver) {
            return $spec;
        }

        return call_user_func($this->resolver, $spec);
    }
}


1		<?php
2		/**
3		* Event Emitter (HEAVILY based on evenement/evenement)
4		*
5		* PHP version 5
6		*
7		* Copyright (C) 2016 Jake Johns
8		*
9		* This software may be modified and distributed under the terms
10		* of the MIT license. See the LICENSE file for details.
11		*
12		* @category Emitter
13		* @package Jnjxp\Event
14		* @author Jake Johns <[email protected]>
15		* @copyright 2016 Jake Johns
16		* @license http://jnj.mit-license.org/2016 MIT License
17		* @link https://github.com/jnjxp/jnjxp.event
18		*/
19
20		namespace Jnjxp\Event;
21
22		/**
23		* Emitter
24		*
25		* @category Emitter
26		* @package Jnjxp\Event
27		* @author Jake Johns <[email protected]>
28		* @license http://jnj.mit-license.org/ MIT License
29		* @link https://github.com/jnjxp/jnjxp.event
30		*/
31		class Emitter
32		{
33		/**
34		* Listener specs
35		*
36		* @var array
37		*
38		* @access protected
39		*/
40		protected $listeners = [];
41
42		/**
43		* Resolver
44		*
45		* @var callable
46		*
47		* @access protected
48		*/
49		protected $resolver;
50
51		/**
52		* __construct
53		*
54		* @param callable $resolver spec resolver
55		*
56		* @access public
57		*/
58	16	public function __construct(callable $resolver = null)
59		{
60	16	$this->resolver = $resolver;
61	16	}
62
63		/**
64		* Add Listener to event
65		*
66		* @param string $event name of event
67		* @param mixed $listener listener spec
68		*
69		* @return null
70		*
71		* @access public
72		*
73		* @SuppressWarnings(PHPMD.ShortMethodName)
74		*/
75	15	public function on($event, $listener)
76		{
77	15	if (!isset($this->listeners[$event])) {
78	15	$this->listeners[$event] = [];
79		}
80	15	$this->listeners[$event][] = $listener;
81	15	}
82
83		/**
84		* Add one time listener
85		*
86		* @param string $event name of event
87		* @param mixed $listener listener spec
88		*
89		* @return null
90		*
91		* @access public
92		*/
93		public function once($event, $listener)
94		{
95	2	$onceListener = function () use (&$onceListener, $event, $listener) {
96	2	$this->removeListener($event, $onceListener);
97	2	$listener = $this->resolve($listener);
		0 ignored issues – show Bug introduced 2016-10-10 18:16 UTC by Report Bug Copy Issue Report Consider using a different name than the imported variable `$listener`, or did you forget to import by reference? It seems like you are assigning to a variable which was imported through a `use` statement which was not imported by reference. For clarity, we suggest to use a different name or import by reference depending on whether you would like to have the change visibile in outer-scope. Change not visible in outer-scope $x = 1; $callable = function() use ($x) { $x = 2; // Not visible in outer scope. If you would like this, how // about using a different variable name than $x? }; $callable(); var_dump($x); // integer(1) Change visible in outer-scope $x = 1; $callable = function() use (&$x) { $x = 2; }; $callable(); var_dump($x); // integer(2) Loading history...
98	2	call_user_func_array($listener, func_get_args());
99	2	};
100	2	$this->on($event, $onceListener);
101	2	}
102
103		/**
104		* Remove listener
105		*
106		* @param string $event name of event
107		* @param mixed $listener listener spec
108		*
109		* @return null
110		*
111		* @access public
112		*/
113	4	public function removeListener($event, $listener)
114		{
115	4	if (isset($this->listeners[$event])) {
116	3	$index = array_search($listener, $this->listeners[$event], true);
117	3	if (false !== $index) {
118	3	unset($this->listeners[$event][$index]);
119		}
120		}
121	4	}
122
123		/**
124		* Remove all listeners
125		*
126		* @param null\|string $event name of event
127		*
128		* @return null
129		*
130		* @access public
131		*/
132	3	public function removeAllListeners($event = null)
133		{
134	3	if ($event !== null) {
135	2	unset($this->listeners[$event]);
136		} else {
137	1	$this->listeners = [];
138		}
139	3	}
140
141		/**
142		* Get listeners for event
143		*
144		* @param string $event event anme
145		*
146		* @return array
147		*
148		* @access public
149		*/
150	13	public function listeners($event)
151		{
152	13	return isset($this->listeners[$event]) ? $this->listeners[$event] : [];
153		}
154
155		/**
156		* Emit event signal
157		*
158		* @param string $event name of event
159		* @param array $arguments event arguments
160		*
161		* @return null
162		*
163		* @access public
164		*/
165	13	public function emit($event, array $arguments = [])
166		{
167	13	foreach ($this->listeners($event) as $listener) {
168	9	$listener = $this->resolve($listener);
169	9	call_user_func_array($listener, $arguments);
170		}
171	13	}
172
173		/**
174		* Resolve
175		*
176		* @param mixed $spec listener spec
177		*
178		* @return mixed
179		*
180		* @access protected
181		*/
182	9	protected function resolve($spec)
183		{
184	9	if (! $this->resolver) {
185	8	return $spec;
186		}
187
188	1	return call_user_func($this->resolver, $spec);
189		}
190		}
191

jnjxp / jnjxp.event

Emitter::removeListener() A last analyzed 2016-10-10 18:18 UTC

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Emitter::removeListener() A
last analyzed 2016-10-10 18:18 UTC