LoopDecorator::__construct() - Code Metrics - WyriHaximus/reactphp-event-loop-inspector - Measure and Improve Code Quality continuously with Scrutinizer

LoopDecorator::__construct() A
last analyzed 2019-09-04 18:53 UTC

↳ Parent: LoopDecorator

Complexity

Conditions	1
Paths	1

Size

Total Lines

Duplication

Lines	0
Ratio	0 %

Code Coverage

Tests	3
CRAP Score	1

Importance

Changes

Metric	Value
dl	0
loc	4
ccs	3
cts	3
cp	1
rs	10
c	0
b	0
f	0
cc	1
nc	1
nop	1
crap	1

<?php declare(strict_types=1);

namespace WyriHaximus\React\Inspector;

use Evenement\EventEmitterInterface;
use Evenement\EventEmitterTrait;
use React\EventLoop\LoopInterface;
use React\EventLoop\Timer\TimerInterface;

class LoopDecorator implements LoopInterface, EventEmitterInterface
{
    use EventEmitterTrait;

    /**
     * @var LoopInterface
     */
    protected $loop;

    /**
     * @param LoopInterface $loop
     */
    public function __construct(LoopInterface $loop)
    {
        $this->loop = $loop;
    }

    /**
     * Register a listener to be notified when a stream is ready to read.
     *
     * @param stream   $stream   The PHP stream resource to check.
     * @param callable $listener Invoked when the stream is ready.
     */
    public function addReadStream($stream, callable $listener)
    {
        $this->emit('addReadStream', [$stream, $listener]);
        $this->loop->addReadStream($stream, function ($stream) use ($listener) {
            $this->emit('readStreamTick', [$stream, $listener]);
            $listener($stream, $this);
        });
    }

    /**
     * Register a listener to be notified when a stream is ready to write.
     *
     * @param stream   $stream   The PHP stream resource to check.
     * @param callable $listener Invoked when the stream is ready.
     */
    public function addWriteStream($stream, callable $listener)
    {
        $this->emit('addWriteStream', [$stream, $listener]);
        $this->loop->addWriteStream($stream, function ($stream) use ($listener) {
            $this->emit('writeStreamTick', [$stream, $listener]);
            $listener($stream, $this);
        });
    }

    /**
     * Remove the read event listener for the given stream.
     *
     * @param stream $stream The PHP stream resource.
     */
    public function removeReadStream($stream)
    {
        $this->emit('removeReadStream', [$stream]);
        $this->loop->removeReadStream($stream);
    }

    /**
     * Remove the write event listener for the given stream.
     *
     * @param stream $stream The PHP stream resource.
     */
    public function removeWriteStream($stream)
    {
        $this->emit('removeWriteStream', [$stream]);
        $this->loop->removeWriteStream($stream);
    }

    /**
     * Remove all listeners for the given stream.
     *
     * @param stream $stream The PHP stream resource.
     */
    public function removeStream($stream)
    {
        $this->emit('removeStream', [$stream]);
        $this->loop->removeStream($stream);
    }

    /**
     * Enqueue a callback to be invoked once after the given interval.
     *
     * The execution order of timers scheduled to execute at the same time is
     * not guaranteed.
     *
     * @param numeric  $interval The number of seconds to wait before execution.
     * @param callable $callback The callback to invoke.
     *
     * @return TimerInterface
     */
    public function addTimer($interval, callable $callback)
    {
        $loopTimer = null;
        $wrapper = function () use (&$loopTimer, $callback, $interval) {
            $this->emit('timerTick', [$interval, $callback, $loopTimer]);
            $callback($loopTimer);
        };
        $loopTimer = $this->loop->addTimer(
            $interval,
            $wrapper
        );
        $this->emit('addTimer', [$interval, $callback, $loopTimer]);

        return $loopTimer;
    }

    /**
     * Enqueue a callback to be invoked repeatedly after the given interval.
     *
     * The execution order of timers scheduled to execute at the same time is
     * not guaranteed.
     *
     * @param numeric  $interval The number of seconds to wait before execution.
     * @param callable $callback The callback to invoke.
     *
     * @return TimerInterface
     */
    public function addPeriodicTimer($interval, callable $callback)
    {
        $loopTimer = $this->loop->addPeriodicTimer(
            $interval,
            function () use (&$loopTimer, $callback, $interval) {
                $this->emit('periodicTimerTick', [$interval, $callback, $loopTimer]);
                $callback($loopTimer);
            }
        );
        $this->emit('addPeriodicTimer', [$interval, $callback, $loopTimer]);

        return $loopTimer;
    }

    /**
     * Cancel a pending timer.
     *
     * @param TimerInterface $timer The timer to cancel.
     */
    public function cancelTimer(TimerInterface $timer)
    {
        $this->emit('cancelTimer', [$timer]);

        return $this->loop->cancelTimer($timer);
    }

    /**
     * Check if a given timer is active.
     *
     * @param TimerInterface $timer The timer to check.
     *
     * @return bool True if the timer is still enqueued for execution.
     */
    public function isTimerActive(TimerInterface $timer)
    {
        return $this->loop->isTimerActive($timer);
    }

    /**
     * Schedule a callback to be invoked on a future tick of the event loop.
     *
     * Callbacks are guaranteed to be executed in the order they are enqueued.
     *
     * @param callable $listener The callback to invoke.
     */
    public function futureTick(callable $listener)
    {
        $this->emit('futureTick', [$listener]);

        return $this->loop->futureTick(function () use ($listener) {
            $this->emit('futureTickTick', [$listener]);
            $listener($this);
        });
    }

    /**
     * Perform a single iteration of the event loop.
     */
    public function tick()
    {
        $this->emit('tickStart');
        $this->loop->tick();
interface User
{
    /** @return string */
    public function getPassword();
}

class MyUser implements User
{
    public function getPassword()
    {
        // return something
    }

    public function getDisplayName()
    {
        // return some name.
    }
}

class AuthSystem
{
    public function authenticate(User $user)
    {
        $this->logger->info(sprintf('Authenticating %s.', $user->getDisplayName()));
        // do something.
    }
}
        $this->emit('tickDone');
    }

    /**
     * Run the event loop until there are no more tasks to perform.
     */
    public function run()
    {
        $this->emit('runStart');
        $this->loop->run();
        $this->emit('runDone');
    }

    /**
     * Instruct a running event loop to stop.
     */
    public function stop()
    {
        $this->emit('stopStart');
        $this->loop->stop();
        $this->emit('stopDone');
    }
}


1		<?php declare(strict_types=1);
2
3		namespace WyriHaximus\React\Inspector;
4
5		use Evenement\EventEmitterInterface;
6		use Evenement\EventEmitterTrait;
7		use React\EventLoop\LoopInterface;
8		use React\EventLoop\Timer\TimerInterface;
9
10		class LoopDecorator implements LoopInterface, EventEmitterInterface
11		{
12		use EventEmitterTrait;
13
14		/**
15		* @var LoopInterface
16		*/
17		protected $loop;
18
19		/**
20		* @param LoopInterface $loop
21		*/
22	24	public function __construct(LoopInterface $loop)
23		{
24	24	$this->loop = $loop;
25	24	}
26
27		/**
28		* Register a listener to be notified when a stream is ready to read.
29		*
30		* @param stream $stream The PHP stream resource to check.
31		* @param callable $listener Invoked when the stream is ready.
32		*/
33	3	public function addReadStream($stream, callable $listener)
34		{
35	3	$this->emit('addReadStream', [$stream, $listener]);
36		$this->loop->addReadStream($stream, function ($stream) use ($listener) {
37	1	$this->emit('readStreamTick', [$stream, $listener]);
38	1	$listener($stream, $this);
39	3	});
40	3	}
41
42		/**
43		* Register a listener to be notified when a stream is ready to write.
44		*
45		* @param stream $stream The PHP stream resource to check.
46		* @param callable $listener Invoked when the stream is ready.
47		*/
48	3	public function addWriteStream($stream, callable $listener)
49		{
50	3	$this->emit('addWriteStream', [$stream, $listener]);
51		$this->loop->addWriteStream($stream, function ($stream) use ($listener) {
52	1	$this->emit('writeStreamTick', [$stream, $listener]);
53	1	$listener($stream, $this);
54	3	});
55	3	}
56
57		/**
58		* Remove the read event listener for the given stream.
59		*
60		* @param stream $stream The PHP stream resource.
61		*/
62	3	public function removeReadStream($stream)
63		{
64	3	$this->emit('removeReadStream', [$stream]);
65	3	$this->loop->removeReadStream($stream);
66	3	}
67
68		/**
69		* Remove the write event listener for the given stream.
70		*
71		* @param stream $stream The PHP stream resource.
72		*/
73	3	public function removeWriteStream($stream)
74		{
75	3	$this->emit('removeWriteStream', [$stream]);
76	3	$this->loop->removeWriteStream($stream);
77	3	}
78
79		/**
80		* Remove all listeners for the given stream.
81		*
82		* @param stream $stream The PHP stream resource.
83		*/
84	1	public function removeStream($stream)
85		{
86	1	$this->emit('removeStream', [$stream]);
87	1	$this->loop->removeStream($stream);
88	1	}
89
90		/**
91		* Enqueue a callback to be invoked once after the given interval.
92		*
93		* The execution order of timers scheduled to execute at the same time is
94		* not guaranteed.
95		*
96		* @param numeric $interval The number of seconds to wait before execution.
97		* @param callable $callback The callback to invoke.
98		*
99		* @return TimerInterface
100		*/
101	2	public function addTimer($interval, callable $callback)
102		{
103	2	$loopTimer = null;
104		$wrapper = function () use (&$loopTimer, $callback, $interval) {
105	2	$this->emit('timerTick', [$interval, $callback, $loopTimer]);
106	2	$callback($loopTimer);
107	2	};
108	2	$loopTimer = $this->loop->addTimer(
109	2	$interval,
110	2	$wrapper
111	2	);
112		$this->emit('addTimer', [$interval, $callback, $loopTimer]);
113	2
114	2	return $loopTimer;
115	2	}
116	2
117		/**
118		* Enqueue a callback to be invoked repeatedly after the given interval.
119		*
120		* The execution order of timers scheduled to execute at the same time is
121		* not guaranteed.
122		*
123		* @param numeric $interval The number of seconds to wait before execution.
124		* @param callable $callback The callback to invoke.
125		*
126		* @return TimerInterface
127		*/
128		public function addPeriodicTimer($interval, callable $callback)
129		{
130	2	$loopTimer = $this->loop->addPeriodicTimer(
131		$interval,
132	2	function () use (&$loopTimer, $callback, $interval) {
133	2	$this->emit('periodicTimerTick', [$interval, $callback, $loopTimer]);
134	2	$callback($loopTimer);
135	2	}
136		);
137	2	$this->emit('addPeriodicTimer', [$interval, $callback, $loopTimer]);
138	2
139	2	return $loopTimer;
140	2	}
141	2
142	2	/**
143	2	* Cancel a pending timer.
144		*
145		* @param TimerInterface $timer The timer to cancel.
146		*/
147		public function cancelTimer(TimerInterface $timer)
148		{
149		$this->emit('cancelTimer', [$timer]);
150
151	4	return $this->loop->cancelTimer($timer);
152		}
153	4
154	4	/**
155		* Check if a given timer is active.
156		*
157		* @param TimerInterface $timer The timer to check.
158		*
159		* @return bool True if the timer is still enqueued for execution.
160		*/
161		public function isTimerActive(TimerInterface $timer)
162		{
163		return $this->loop->isTimerActive($timer);
164	2	}
165
166	2	/**
167		* Schedule a callback to be invoked on a future tick of the event loop.
168		*
169		* Callbacks are guaranteed to be executed in the order they are enqueued.
170		*
171		* @param callable $listener The callback to invoke.
172		*/
173		public function futureTick(callable $listener)
174		{
175		$this->emit('futureTick', [$listener]);
176
177	2	return $this->loop->futureTick(function () use ($listener) {
178		$this->emit('futureTickTick', [$listener]);
179	2	$listener($this);
180		});
181	2	}
182	2
183	2	/**
184		* Perform a single iteration of the event loop.
185		*/
186		public function tick()
187		{
188		$this->emit('tickStart');
189		$this->loop->tick();
		0 ignored issues – show Bug introduced 2017-11-02 07:21 UTC by Report Bug Copy Issue Report It seems like you code against a concrete implementation and not the interface `React\EventLoop\LoopInterface` as the method `tick()` does only exist in the following implementations of said interface: `WyriHaximus\React\Inspector\LoopDecorator`. Let’s take a look at an example: interface User { /** @return string / public function getPassword(); } class MyUser implements User { public function getPassword() { // return something } public function getDisplayName() { // return some name. } } class AuthSystem { public function authenticate(User $user) { $this->logger->info(sprintf('Authenticating %s.', $user->getDisplayName())); // do something. } } In the above example, the authenticate() method works fine as long as you just pass instances of MyUser. However, if you now also want to pass a different implementation of User which does not have a getDisplayName() method, the code will break. Available Fixes Change the type-hint for the parameter: class AuthSystem { public function authenticate(MyUser $user) { / ... / } } Add an additional type-check: class AuthSystem { public function authenticate(User $user) { if ($user instanceof MyUser) { $this->logger->info(/* ... /); } // or alternatively if ( ! $user instanceof MyUser) { throw new \LogicException( '$user must be an instance of MyUser, ' .'other instances are not supported.' ); } } } Note:* PHP Analyzer uses reverse abstract interpretation to narrow down the types inside the if block in such a case. Add the method to the interface: interface User { /** @return string / public function getPassword(); /* @return string */ public function getDisplayName(); } Loading history...
190		$this->emit('tickDone');
191		}
192
193	4	/**
194		* Run the event loop until there are no more tasks to perform.
195	4	*/
196	4	public function run()
197	4	{
198	4	$this->emit('runStart');
199	4	$this->loop->run();
200		$this->emit('runDone');
201		}
202
203		/**
204		* Instruct a running event loop to stop.
205	1	*/
206		public function stop()
207	1	{
208	1	$this->emit('stopStart');
209	1	$this->loop->stop();
210	1	$this->emit('stopDone');
211		}
212		}
213

WyriHaximus / reactphp-event-loop-inspector

LoopDecorator::__construct() A last analyzed 2019-09-04 18:53 UTC

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LoopDecorator::__construct() A
last analyzed 2019-09-04 18:53 UTC