AbstractEnvironment::setEventDispatcher() - Code Metrics - Inspection of "Fix tests" - unicorn-fail/emoji - Measure and Improve Code Quality continuously with Scrutinizer

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by Mark

created 2021-03-18 20:14 UTC

AbstractEnvironment::setEventDispatcher() A

↳ Parent: AbstractEnvironment

Complexity

Conditions	1
Paths	1

Size

Total Lines	3
Code Lines	1

Duplication

Lines	0
Ratio	0 %

Code Coverage

Tests	2
CRAP Score	1

Importance

Changes	1
Bugs	0	Features	0

Metric	Value
cc	1
eloc	1
c	1
b	0
f	0
nc	1
nop	1
dl	0
loc	3
ccs	2
cts	2
cp	1
crap	1
rs	10

<?php

declare(strict_types=1);

namespace League\Emoji\Environment;

use League\Configuration\Configuration;
use League\Configuration\ConfigurationInterface;
use League\Emoji\Dataset\RuntimeDataset;
use League\Emoji\Event\ListenerData;
use League\Emoji\Extension\ExtensionInterface;
use League\Emoji\Renderer\NodeRendererInterface;
use League\Emoji\Util\PrioritizedList;
use Psr\EventDispatcher\EventDispatcherInterface;
use Psr\EventDispatcher\StoppableEventInterface;

abstract class AbstractEnvironment implements EnvironmentInterface
{
    /** @var Configuration */
    protected $config;

    /** @var ?RuntimeDataset */
    protected $dataset;

    /**
     * @var ExtensionInterface[]
     *
     * @psalm-readonly-allow-private-mutation
     */
    protected $extensions = [];

    /** @var ?EventDispatcherInterface */
    protected $eventDispatcher;

    /**
     * @var bool
     *
     * @psalm-readonly-allow-private-mutation
     */
    protected $initialized = false;

    /**
     * @var ?PrioritizedList<ListenerData>
     *
     * @psalm-readonly-allow-private-mutation
     */
    protected $listenerData;

    /**
     * @var array<string, PrioritizedList<NodeRendererInterface>>

     *
     * @psalm-readonly-allow-private-mutation
     */
    protected $renderersByClass = [];

    /**
     * @var ExtensionInterface[]
     *
     * @psalm-readonly-allow-private-mutation
     */
    protected $uninitializedExtensions = [];

    /**
     * @throws \RuntimeException
     */
    protected function assertUninitialized(string $message): void
    {
        if ($this->initialized) {
            throw new \RuntimeException(\sprintf('%s The Environment has already been initialized.', $message));
        }
    }

    /**
     * {@inheritDoc}
     */
    public function dispatch(object $event)
    {
        $this->initialize();

        if ($this->eventDispatcher !== null) {
            return $this->eventDispatcher->dispatch($event);
        }

        foreach ($this->getListenersForEvent($event) as $listener) {
            if ($event instanceof StoppableEventInterface && $event->isPropagationStopped()) {
                return $event;
            }

            $listener($event);
        }

        return $event;
    }

    public function getConfiguration(): ConfigurationInterface
    {
        $this->initializeConfiguration();

        return $this->config->reader();
    }

    /**
     * {@inheritDoc}
     *
     * @return ExtensionInterface[]
     */
    public function getExtensions(): iterable
    {
        return $this->extensions;
    }

    /**
     * {@inheritDoc}
     *
     * @return iterable<callable>
     */
    public function getListenersForEvent(object $event): iterable
    {
        if ($this->listenerData === null) {
            /** @var PrioritizedList<ListenerData> $listenerData */
            $listenerData       = new PrioritizedList();
            $this->listenerData = $listenerData;
        }

        /** @var ListenerData $listenerData */
        foreach ($this->listenerData as $listenerData) {
            if (! \is_a($event, $listenerData->getEvent())) {
                continue;
            }

            yield function (object $event) use ($listenerData): void {
                $this->initialize();

                \call_user_func($listenerData->getListener(), $event);
            };
        }
    }

    /**
     * {@inheritDoc}
     */
    public function getRenderersForClass(string $nodeClass): iterable
    {
        $this->initialize();

        // If renderers are defined for this specific class, return them immediately
        if (isset($this->renderersByClass[$nodeClass])) {
            return $this->renderersByClass[$nodeClass];
        }

        while (\class_exists($parent = $parent ?? $nodeClass) && ($parent = \get_parent_class($parent))) {
            if (! isset($this->renderersByClass[$parent])) {
                continue;
            }

            // "Cache" this result to avoid future loops
            return $this->renderersByClass[$nodeClass] = $this->renderersByClass[$parent];
        }

        return [];
    }

    public function getRuntimeDataset(string $index = 'hexcode'): RuntimeDataset
    {
        $this->initialize();

        if ($this->dataset === null) {
            $this->dataset = new RuntimeDataset($this->getConfiguration());
        }

        return $this->dataset->indexBy($index);
    }

    protected function initialize(): void
    {
        if ($this->initialized) {
            return;
        }

        $this->initializeConfiguration();

        $this->initializeExtensions();

        $this->initialized = true;
    }

    abstract protected function initializeConfiguration(): void;

    abstract protected function initializeExtensions(): void;

    public function setEventDispatcher(EventDispatcherInterface $dispatcher): void
    {
        $this->eventDispatcher = $dispatcher;
    }
}


1		<?php
2
3		declare(strict_types=1);
4
5		namespace League\Emoji\Environment;
6
7		use League\Configuration\Configuration;
8		use League\Configuration\ConfigurationInterface;
9		use League\Emoji\Dataset\RuntimeDataset;
10		use League\Emoji\Event\ListenerData;
11		use League\Emoji\Extension\ExtensionInterface;
12		use League\Emoji\Renderer\NodeRendererInterface;
13		use League\Emoji\Util\PrioritizedList;
14		use Psr\EventDispatcher\EventDispatcherInterface;
15		use Psr\EventDispatcher\StoppableEventInterface;
16
17		abstract class AbstractEnvironment implements EnvironmentInterface
18		{
19		/** @var Configuration */
20		protected $config;
21
22		/** @var ?RuntimeDataset */
23		protected $dataset;
24
25		/**
26		* @var ExtensionInterface[]
27		*
28		* @psalm-readonly-allow-private-mutation
29		*/
30		protected $extensions = [];
31
32		/** @var ?EventDispatcherInterface */
33		protected $eventDispatcher;
34
35		/**
36		* @var bool
37		*
38		* @psalm-readonly-allow-private-mutation
39		*/
40		protected $initialized = false;
41
42		/**
43		* @var ?PrioritizedList<ListenerData>
44		*
45		* @psalm-readonly-allow-private-mutation
46		*/
47		protected $listenerData;
48
49		/**
50		* @var array<string, PrioritizedList<NodeRendererInterface>>
		0 ignored issues – show Documentation Bug introduced 2020-09-21 02:03 UTC by Report Bug Copy Issue Report The doc comment `array<string, Prioritize...NodeRendererInterface>>` at position `4` could not be parsed: Expected '>' at position 4, but found 'PrioritizedList'. Loading history...
51		*
52		* @psalm-readonly-allow-private-mutation
53		*/
54		protected $renderersByClass = [];
55
56		/**
57		* @var ExtensionInterface[]
58		*
59		* @psalm-readonly-allow-private-mutation
60		*/
61		protected $uninitializedExtensions = [];
62
63		/**
64		* @throws \RuntimeException
65		*/
66	696	protected function assertUninitialized(string $message): void
67		{
68	696	if ($this->initialized) {
69	9	throw new \RuntimeException(\sprintf('%s The Environment has already been initialized.', $message));
70		}
71	687	}
72
73		/**
74		* {@inheritDoc}
75		*/
76	255	public function dispatch(object $event)
77		{
78	255	$this->initialize();
79
80	255	if ($this->eventDispatcher !== null) {
81	3	return $this->eventDispatcher->dispatch($event);
82		}
83
84	252	foreach ($this->getListenersForEvent($event) as $listener) {
85	246	if ($event instanceof StoppableEventInterface && $event->isPropagationStopped()) {
86	3	return $event;
87		}
88
89	246	$listener($event);
90		}
91
92	249	return $event;
93		}
94
95	672	public function getConfiguration(): ConfigurationInterface
96		{
97	672	$this->initializeConfiguration();
98
99	672	return $this->config->reader();
100		}
101
102		/**
103		* {@inheritDoc}
104		*
105		* @return ExtensionInterface[]
106		*/
107	6	public function getExtensions(): iterable
108		{
109	6	return $this->extensions;
110		}
111
112		/**
113		* {@inheritDoc}
114		*
115		* @return iterable<callable>
116		*/
117	252	public function getListenersForEvent(object $event): iterable
118		{
119	252	if ($this->listenerData === null) {
120		/** @var PrioritizedList<ListenerData> $listenerData */
121	3	$listenerData = new PrioritizedList();
122	3	$this->listenerData = $listenerData;
123		}
124
125		/** @var ListenerData $listenerData */
126	252	foreach ($this->listenerData as $listenerData) {
127	249	if (! \is_a($event, $listenerData->getEvent())) {
128	246	continue;
129		}
130
131		yield function (object $event) use ($listenerData): void {
132	246	$this->initialize();
133
134	246	\call_user_func($listenerData->getListener(), $event);
135	246	};
136		}
137	249	}
138
139		/**
140		* {@inheritDoc}
141		*/
142	249	public function getRenderersForClass(string $nodeClass): iterable
143		{
144	249	$this->initialize();
145
146		// If renderers are defined for this specific class, return them immediately
147	249	if (isset($this->renderersByClass[$nodeClass])) {
148	237	return $this->renderersByClass[$nodeClass];
149		}
150
151	15	while (\class_exists($parent = $parent ?? $nodeClass) && ($parent = \get_parent_class($parent))) {
152	9	if (! isset($this->renderersByClass[$parent])) {
153	9	continue;
154		}
155
156		// "Cache" this result to avoid future loops
157	3	return $this->renderersByClass[$nodeClass] = $this->renderersByClass[$parent];
158		}
159
160	12	return [];
161		}
162
163	651	public function getRuntimeDataset(string $index = 'hexcode'): RuntimeDataset
164		{
165	651	$this->initialize();
166
167	651	if ($this->dataset === null) {
168	651	$this->dataset = new RuntimeDataset($this->getConfiguration());
169		}
170
171	651	return $this->dataset->indexBy($index);
172		}
173
174	687	protected function initialize(): void
175		{
176	687	if ($this->initialized) {
177	249	return;
178		}
179
180	687	$this->initializeConfiguration();
181
182	687	$this->initializeExtensions();
183
184	687	$this->initialized = true;
185	687	}
186
187		abstract protected function initializeConfiguration(): void;
188
189		abstract protected function initializeExtensions(): void;
190
191	3	public function setEventDispatcher(EventDispatcherInterface $dispatcher): void
192		{
193	3	$this->eventDispatcher = $dispatcher;
194	3	}
195		}
196

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