Container::createDescriptor() - Code Metrics - Inspection of "remove app_path from MigrateCommand" - Wandu/Framework - Measure and Improve Code Quality continuously with Scrutinizer

Completed

Push — master ( 7e3d04...dc7866 )

by Changwan

created 2017-05-10 03:23 UTC

Container::createDescriptor() A

↳ Parent: Project

Complexity

Conditions	1
Paths	1

Size

Total Lines	5
Code Lines	3

Duplication

Lines	0
Ratio	0 %

Code Coverage

Tests	3
CRAP Score	1

Importance

Changes

Metric	Value
cc	1
eloc	3
nc	1
nop	3
dl	0
loc	5
ccs	3
cts	3
cp	1
crap	1
rs	9.4285
c	0
b	0
f	0

<?php
namespace Wandu\DI;

use Psr\Container\ContainerExceptionInterface;
use Psr\Container\ContainerInterface as PsrContainerInterface;
use Wandu\DI\Contracts\ResolverInterface;
use Wandu\DI\Exception\CannotChangeException;
use Wandu\DI\Exception\CannotFindParameterException;
use Wandu\DI\Exception\CannotResolveException;
use Wandu\DI\Exception\NullReferenceException;
use Wandu\DI\Exception\RequirePackageException;
use Wandu\DI\Resolvers\BindResolver;
use Wandu\DI\Resolvers\CallableResolver;
use Wandu\DI\Resolvers\InstanceResolver;

class Container implements ContainerInterface
{
    /** @var \Wandu\DI\ContainerInterface */
    public static $instance;
    
    /** @var \Wandu\DI\Descriptor[] */
    protected $descriptors = [];
    
    /** @var array */
    protected $caches = [];

    /** @var \Wandu\DI\ServiceProviderInterface[] */
    protected $providers = [];

    /** @var array */
    protected $aliases = [];

    /** @var array */
    protected $aliasIndex = [];
    
    /** @var bool */
    protected $isBooted = false;

    public function __construct()
    {
        $this->caches = [
            Container::class => $this,
            ContainerInterface::class => $this,
            PsrContainerInterface::class => $this,
            'container' => $this,
        ];
    }

    /**
     * @return \Wandu\DI\ContainerInterface
     */
    public function setAsGlobal()
    {
        $instance = static::$instance;
        static::$instance = $this;
        return $instance;
    }

    public function __clone()
    {
        $this->caches[Container::class] = $this;
        $this->caches[ContainerInterface::class] = $this;
        $this->caches[PsrContainerInterface::class] = $this;
        $this->caches['container'] = $this;
    }

    /**
     * {@inheritdoc}
     */
    public function __call($name, array $arguments)
    {
        return $this->call($this->get($name), $arguments);
function acceptsInteger($int) { }

$x = '123'; // string "123"

// Instead of
acceptsInteger($x);

// we recommend to use
acceptsInteger((integer) $x);
    }

    /**
     * {@inheritdoc}
     */
    public function offsetExists($name)
    {
        return $this->has($name) && $this->get($name) !== null;
    }

    /**
     * {@inheritdoc}
     */
    public function offsetGet($name)
    {
        return $this->get($name);
    }

    /**
     * {@inheritdoc}
     */
    public function offsetSet($name, $value)
    {
        $this->instance($name, $value);
    }

    /**
     * {@inheritdoc}
     */
    public function offsetUnset($name)
    {
        $this->destroy($name);
    }

    /**
     * {@inheritdoc}
     */
    public function get($name)
    {
        while (isset($this->aliases[$name])) {
            $name = $this->aliases[$name];
        }
        if (array_key_exists($name, $this->caches)) {
            return $this->caches[$name];
        }
        try {
            try {
                $instance = $this->descriptor($name)->createInstance($this);
            } catch (NullReferenceException $e) {
                if (!class_exists($name)) {
                    throw $e;
                }
                $this->bind($name);
                $instance = $this->descriptor($name)->createInstance($this);
            }
        } catch (CannotFindParameterException $e) {
            throw new CannotResolveException($name, $e->getParameter());
        }
        return $instance;
    }

    /**
     * {@inheritdoc}
     */
    public function assert(string $name, string $package)
    {
        try {
            return $this->get($name);
        } catch (ContainerExceptionInterface $e) {
            throw new RequirePackageException($name, $package);
        }
    }
    
    /**
     * {@inheritdoc}
     */
    public function has($name)
    {
        return
            array_key_exists($name, $this->caches) ||
            array_key_exists($name, $this->descriptors) || 
            class_exists($name) ||
            isset($this->aliases[$name]);
    }

    /**
     * {@inheritdoc}
     */
    public function destroy(...$names)
    {
        foreach ($names as $name) {
            if (array_key_exists($name, $this->caches)) {
                throw new CannotChangeException($name);
            }
            if (array_key_exists($name, $this->descriptors)) {
                if ($this->descriptors[$name]->frozen) {
                    throw new CannotChangeException($name);
                }
            }
            unset($this->descriptors[$name]);
        }
    }

    /**
     * {@inheritdoc}
     */
    public function instance(string $name, $value): Descriptor
    {
        return $this->createDescriptor($name, new InstanceResolver($value), class_exists($name) ? $name : null);
    }

    /**
     * {@inheritdoc}
     */
    public function closure(string $name, callable $handler): Descriptor
    {
        return $this->createDescriptor($name, new CallableResolver($handler), class_exists($name) ? $name : null);
    }

    /**
     * {@inheritdoc}
     */
    public function bind(string $name, string $className = null): Descriptor
    {
        if (isset($className)) {
            $this->alias($className, $name);
            return $this->createDescriptor($name, new BindResolver($className), $className);
        }
        return $this->createDescriptor($name, new BindResolver($name), $name);
    }

    /**
     * {@inheritdoc}
     */
    public function alias(string $alias, string $target)
    {
        if (!array_key_exists($target, $this->aliasIndex)) {
            $this->aliasIndex[$target] = [];
        }
        $this->aliasIndex[$target][] = $alias;
        $this->aliases[$alias] = $target;
    }

    /**
     * {@inheritdoc}
     */
    public function descriptor(string $name): Descriptor
    {
        while (isset($this->aliases[$name])) {
            $name = $this->aliases[$name];
        }
        if (!array_key_exists($name, $this->descriptors)) {
            throw new NullReferenceException($name);
        }
        return $this->descriptors[$name];
    }

    /**
     * {@inheritdoc}
     */
    public function with(array $arguments = []): ContainerInterface
    {
        $new = clone $this;
        foreach ($arguments as $name => $argument) {
            if ($argument instanceof Descriptor) {
                 $new->createDescriptor($name, $argument);
function acceptsInteger($int) { }

$x = '123'; // string "123"

// Instead of
acceptsInteger($x);

// we recommend to use
acceptsInteger((integer) $x);
            } else {
                $new->instance($name, $argument);
            }
        }
        return $new;
    }
    
    /**
     * {@inheritdoc}
     */
    public function create(string $className, array $arguments = [])
    {
        try {
            return (new Descriptor($className, new BindResolver($className)))->assign($arguments)->createInstance($this);
        } catch (CannotFindParameterException $e) {
            throw new CannotResolveException($className, $e->getParameter());
        }
    }

    /**
     * {@inheritdoc}
     */
    public function call(callable $callee, array $arguments = [])
    {
        try {
            return (new Descriptor(null, new CallableResolver($callee)))->assign($arguments)->createInstance($this);
        } catch (CannotFindParameterException $e) {
            throw new CannotResolveException($callee, $e->getParameter());
function acceptsInteger($int) { }

$x = '123'; // string "123"

// Instead of
acceptsInteger($x);

// we recommend to use
acceptsInteger((integer) $x);
        }
    }

    /**
     * {@inheritdoc}
     */
    public function register(ServiceProviderInterface $provider)
    {
        $provider->register($this);
        $this->providers[] = $provider;
    }

    /**
     * {@inheritdoc}
     */
    public function boot()
    {
        if (!$this->isBooted) {
            foreach ($this->providers as $provider) {
                $provider->boot($this);
            }
            $this->isBooted = true;
        }
        return $this;
    }

    protected function createDescriptor($name, ResolverInterface $resolver, $className = null): Descriptor
    {
        $this->destroy($name);
        return $this->descriptors[$name] = new Descriptor($className, $resolver);
    }
}


1		<?php
2		namespace Wandu\DI;
3
4		use Psr\Container\ContainerExceptionInterface;
5		use Psr\Container\ContainerInterface as PsrContainerInterface;
6		use Wandu\DI\Contracts\ResolverInterface;
7		use Wandu\DI\Exception\CannotChangeException;
8		use Wandu\DI\Exception\CannotFindParameterException;
9		use Wandu\DI\Exception\CannotResolveException;
10		use Wandu\DI\Exception\NullReferenceException;
11		use Wandu\DI\Exception\RequirePackageException;
12		use Wandu\DI\Resolvers\BindResolver;
13		use Wandu\DI\Resolvers\CallableResolver;
14		use Wandu\DI\Resolvers\InstanceResolver;
15
16		class Container implements ContainerInterface
17		{
18		/** @var \Wandu\DI\ContainerInterface */
19		public static $instance;
20
21		/** @var \Wandu\DI\Descriptor[] */
22		protected $descriptors = [];
23
24		/** @var array */
25		protected $caches = [];
26
27		/** @var \Wandu\DI\ServiceProviderInterface[] */
28		protected $providers = [];
29
30		/** @var array */
31		protected $aliases = [];
32
33		/** @var array */
34		protected $aliasIndex = [];
35
36		/** @var bool */
37		protected $isBooted = false;
38
39	76	public function __construct()
40		{
41	76	$this->caches = [
42	76	Container::class => $this,
43	76	ContainerInterface::class => $this,
44	76	PsrContainerInterface::class => $this,
45	76	'container' => $this,
46		];
47	76	}
48
49		/**
50		* @return \Wandu\DI\ContainerInterface
51		*/
52	4	public function setAsGlobal()
53		{
54	4	$instance = static::$instance;
55	4	static::$instance = $this;
56	4	return $instance;
57		}
58
59	6	public function __clone()
60		{
61	6	$this->caches[Container::class] = $this;
62	6	$this->caches[ContainerInterface::class] = $this;
63	6	$this->caches[PsrContainerInterface::class] = $this;
64	6	$this->caches['container'] = $this;
65	6	}
66
67		/**
68		* {@inheritdoc}
69		*/
70		public function __call($name, array $arguments)
71		{
72		return $this->call($this->get($name), $arguments);
		0 ignored issues – show Documentation introduced 2016-10-25 17:40 UTC by Report Bug Copy Issue Report `$this->get($name)` is of type `*`, but the function expects a `callable`. It seems like the type of the argument is not accepted by the function/method which you are calling. In some cases, in particular if PHP’s automatic type-juggling kicks in this might be fine. In other cases, however this might be a bug. We suggest to add an explicit type cast like in the following example: function acceptsInteger($int) { } $x = '123'; // string "123" // Instead of acceptsInteger($x); // we recommend to use acceptsInteger((integer) $x); Loading history...
73		}
74
75		/**
76		* {@inheritdoc}
77		*/
78	2	public function offsetExists($name)
79		{
80	2	return $this->has($name) && $this->get($name) !== null;
81		}
82
83		/**
84		* {@inheritdoc}
85		*/
86	15	public function offsetGet($name)
87		{
88	15	return $this->get($name);
89		}
90
91		/**
92		* {@inheritdoc}
93		*/
94	6	public function offsetSet($name, $value)
95		{
96	6	$this->instance($name, $value);
97	6	}
98
99		/**
100		* {@inheritdoc}
101		*/
102	1	public function offsetUnset($name)
103		{
104	1	$this->destroy($name);
105		}
106
107		/**
108		* {@inheritdoc}
109		*/
110	47	public function get($name)
111		{
112	47	while (isset($this->aliases[$name])) {
113	11	$name = $this->aliases[$name];
114		}
115	47	if (array_key_exists($name, $this->caches)) {
116	5	return $this->caches[$name];
117		}
118		try {
119		try {
120	46	$instance = $this->descriptor($name)->createInstance($this);
121	14	} catch (NullReferenceException $e) {
122	13	if (!class_exists($name)) {
123	1	throw $e;
124		}
125	12	$this->bind($name);
126	44	$instance = $this->descriptor($name)->createInstance($this);
127		}
128	5	} catch (CannotFindParameterException $e) {
129	4	throw new CannotResolveException($name, $e->getParameter());
130		}
131	42	return $instance;
132		}
133
134		/**
135		* {@inheritdoc}
136		*/
137		public function assert(string $name, string $package)
138		{
139		try {
140		return $this->get($name);
141		} catch (ContainerExceptionInterface $e) {
142		throw new RequirePackageException($name, $package);
143		}
144		}
145
146		/**
147		* {@inheritdoc}
148		*/
149	20	public function has($name)
150		{
151		return
152	20	array_key_exists($name, $this->caches) \|\|
153	18	array_key_exists($name, $this->descriptors) \|\|
154	15	class_exists($name) \|\|
155	20	isset($this->aliases[$name]);
156		}
157
158		/**
159		* {@inheritdoc}
160		*/
161	50	public function destroy(...$names)
162		{
163	50	foreach ($names as $name) {
164	50	if (array_key_exists($name, $this->caches)) {
165		throw new CannotChangeException($name);
166		}
167	50	if (array_key_exists($name, $this->descriptors)) {
168	5	if ($this->descriptors[$name]->frozen) {
169	2	throw new CannotChangeException($name);
170		}
171		}
172	50	unset($this->descriptors[$name]);
173		}
174	50	}
175
176		/**
177		* {@inheritdoc}
178		*/
179	30	public function instance(string $name, $value): Descriptor
180		{
181	30	return $this->createDescriptor($name, new InstanceResolver($value), class_exists($name) ? $name : null);
182		}
183
184		/**
185		* {@inheritdoc}
186		*/
187	12	public function closure(string $name, callable $handler): Descriptor
188		{
189	12	return $this->createDescriptor($name, new CallableResolver($handler), class_exists($name) ? $name : null);
190		}
191
192		/**
193		* {@inheritdoc}
194		*/
195	25	public function bind(string $name, string $className = null): Descriptor
196		{
197	25	if (isset($className)) {
198	14	$this->alias($className, $name);
199	14	return $this->createDescriptor($name, new BindResolver($className), $className);
200		}
201	16	return $this->createDescriptor($name, new BindResolver($name), $name);
202		}
203
204		/**
205		* {@inheritdoc}
206		*/
207	23	public function alias(string $alias, string $target)
208		{
209	23	if (!array_key_exists($target, $this->aliasIndex)) {
210	23	$this->aliasIndex[$target] = [];
211		}
212	23	$this->aliasIndex[$target][] = $alias;
213	23	$this->aliases[$alias] = $target;
214	23	}
215
216		/**
217		* {@inheritdoc}
218		*/
219	46	public function descriptor(string $name): Descriptor
220		{
221	46	while (isset($this->aliases[$name])) {
222	1	$name = $this->aliases[$name];
223		}
224	46	if (!array_key_exists($name, $this->descriptors)) {
225	13	throw new NullReferenceException($name);
226		}
227	45	return $this->descriptors[$name];
228		}
229
230		/**
231		* {@inheritdoc}
232		*/
233	6	public function with(array $arguments = []): ContainerInterface
234		{
235	6	$new = clone $this;
236	6	foreach ($arguments as $name => $argument) {
237	6	if ($argument instanceof Descriptor) {
238		$new->createDescriptor($name, $argument);
		0 ignored issues – show Documentation introduced 2017-05-10 03:30 UTC by Report Bug Copy Issue Report `$argument` is of type `object<Wandu\DI\Descriptor>`, but the function expects a `object<Wandu\DI\Contracts\ResolverInterface>`. It seems like the type of the argument is not accepted by the function/method which you are calling. In some cases, in particular if PHP’s automatic type-juggling kicks in this might be fine. In other cases, however this might be a bug. We suggest to add an explicit type cast like in the following example: function acceptsInteger($int) { } $x = '123'; // string "123" // Instead of acceptsInteger($x); // we recommend to use acceptsInteger((integer) $x); Loading history...
239		} else {
240	6	$new->instance($name, $argument);
241		}
242		}
243	6	return $new;
244		}
245
246		/**
247		* {@inheritdoc}
248		*/
249	5	public function create(string $className, array $arguments = [])
250		{
251		try {
252	5	return (new Descriptor($className, new BindResolver($className)))->assign($arguments)->createInstance($this);
253	4	} catch (CannotFindParameterException $e) {
254	3	throw new CannotResolveException($className, $e->getParameter());
255		}
256		}
257
258		/**
259		* {@inheritdoc}
260		*/
261	9	public function call(callable $callee, array $arguments = [])
262		{
263		try {
264	9	return (new Descriptor(null, new CallableResolver($callee)))->assign($arguments)->createInstance($this);
265	5	} catch (CannotFindParameterException $e) {
266	3	throw new CannotResolveException($callee, $e->getParameter());
		0 ignored issues – show Documentation introduced 2017-04-16 17:39 UTC by Report Bug Copy Issue Report `$callee` is of type `callable`, but the function expects a `string`. It seems like the type of the argument is not accepted by the function/method which you are calling. In some cases, in particular if PHP’s automatic type-juggling kicks in this might be fine. In other cases, however this might be a bug. We suggest to add an explicit type cast like in the following example: function acceptsInteger($int) { } $x = '123'; // string "123" // Instead of acceptsInteger($x); // we recommend to use acceptsInteger((integer) $x); Loading history...
267		}
268		}
269
270		/**
271		* {@inheritdoc}
272		*/
273	5	public function register(ServiceProviderInterface $provider)
274		{
275	5	$provider->register($this);
276	5	$this->providers[] = $provider;
277	5	}
278
279		/**
280		* {@inheritdoc}
281		*/
282	3	public function boot()
283		{
284	3	if (!$this->isBooted) {
285	3	foreach ($this->providers as $provider) {
286	3	$provider->boot($this);
287		}
288	3	$this->isBooted = true;
289		}
290	3	return $this;
291		}
292
293	50	protected function createDescriptor($name, ResolverInterface $resolver, $className = null): Descriptor
294		{
295	50	$this->destroy($name);
296	50	return $this->descriptors[$name] = new Descriptor($className, $resolver);
297		}
298		}
299

Wandu / Framework

Push — master ( 7e3d04...dc7866 )

Container::createDescriptor() A

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