Callback - Code Metrics - Respect/Rest - Measure and Improve Code Quality continuously with Scrutinizer

Callback A
last analyzed 2019-03-22 22:45 UTC

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Complexity

Total Complexity

Size/Duplication

Total Lines	77
Duplicated Lines	0 %

Coupling/Cohesion

Components	1
Dependencies	1

Test Coverage

Coverage

94.12%

Importance

Changes

Metric	Value
wmc	6
lcom	1
cbo	1
dl	0
loc	77
ccs	16
cts	17
cp	0.9412
rs	10
c	0
b	0
f	0

4 Methods

Rating	Name	Size	Complexity
A	__construct()	10	1
A	getCallbackReflection()	8	2
A	getReflection()	8	2
A	runTarget()	7	1

<?php
/*
 * This file is part of the Respect\Rest package.
 *
 * For the full copyright and license information, please view the LICENSE
 * file that was distributed with this source code.
 */

namespace Respect\Rest\Routes;

use ReflectionFunction;
use ReflectionMethod;

/** A callback-based route */
class Callback extends AbstractRoute
{
    /** @var callable The actual callback this route holds */
    protected $callback;

    /** @var array String argument parameters from the Request */
    public $arguments;

    /** @var ReflectionFunctionAbstract The reflection for the callback */
    protected $reflection;

    /**
     * @param string   $method    The HTTP method (GET, POST, etc)
     * @param string   $pattern   The URI pattern for this route
     * @param callable $callback  The callback this route holds
     * @param array    $arguments Additional arguments for this callback
     */
    public function __construct(
        $method,
        $pattern,
        $callback,
        array $arguments = array()
    ) {
        $this->callback = $callback;
        $this->arguments = $arguments;
        parent::__construct($method, $pattern);
    }

    /**
     * Returns an appropriate Reflection for any callable object
     *
     * @return ReflectionFunctionAbstract The returned reflection object
     */
    public function getCallbackReflection()
    {
        if (is_array($this->callback)) {
            return new ReflectionMethod($this->callback[0], $this->callback[1]);
        } else {
            return new ReflectionFunction($this->callback);
        }
    }

    /**
     * Gets the reflection for a specific method. For callables, the reflection
     * is always the same. This follows the AbstractRoute implementation
     *
     * @param string $method The irrelevant HTTP method for this implementation
     *
     * @return ReflectionFunctionAbstract The returned reflection object
     */
    public function getReflection($method)
    {
        if (empty($this->reflection)) {
            $this->reflection = $this->getCallbackReflection();

        }

        return $this->reflection;
class Author {
    private $name;

    public function __construct($name) {
        $this->name = $name;
    }

    public function getName() {
        return $this->name;
    }
}

abstract class Post {
    public function getAuthor() {
        return 'Johannes';
    }
}

class BlogPost extends Post {
    public function getAuthor() {
        return new Author('Johannes');
    }
}

class ForumPost extends Post { /* ... */ }

function my_function(Post $post) {
    echo strtoupper($post->getAuthor());
}
    }

    /**
     * Runs the callback when this route is matched with params
     *
     * @param string $method The irrelevant HTTP method for this implementation
     * @param array  $params An array of params for this request
     *
     * @see Respect\Rest\Request::$params
     *
     * @return mixed Whatever the callback returns
     */
    public function runTarget($method, &$params)
    {
        return call_user_func_array(
            $this->callback,
            array_merge($params, $this->arguments)
        );
    }
}


1		<?php
2		/*
3		* This file is part of the Respect\Rest package.
4		*
5		* For the full copyright and license information, please view the LICENSE
6		* file that was distributed with this source code.
7		*/
8
9		namespace Respect\Rest\Routes;
10
11		use ReflectionFunction;
12		use ReflectionMethod;
13
14		/** A callback-based route */
15		class Callback extends AbstractRoute
16		{
17		/** @var callable The actual callback this route holds */
18		protected $callback;
19
20		/** @var array String argument parameters from the Request */
21		public $arguments;
22
23		/** @var ReflectionFunctionAbstract The reflection for the callback */
24		protected $reflection;
25
26		/**
27		* @param string $method The HTTP method (GET, POST, etc)
28		* @param string $pattern The URI pattern for this route
29		* @param callable $callback The callback this route holds
30		* @param array $arguments Additional arguments for this callback
31		*/
32	31	public function __construct(
33		$method,
34		$pattern,
35		$callback,
36		array $arguments = array()
37		) {
38	31	$this->callback = $callback;
39	31	$this->arguments = $arguments;
40	31	parent::__construct($method, $pattern);
41	31	}
42
43		/**
44		* Returns an appropriate Reflection for any callable object
45		*
46		* @return ReflectionFunctionAbstract The returned reflection object
47		*/
48	10	public function getCallbackReflection()
49		{
50	10	if (is_array($this->callback)) {
51		return new ReflectionMethod($this->callback[0], $this->callback[1]);
52		} else {
53	10	return new ReflectionFunction($this->callback);
54		}
55		}
56
57		/**
58		* Gets the reflection for a specific method. For callables, the reflection
59		* is always the same. This follows the AbstractRoute implementation
60		*
61		* @param string $method The irrelevant HTTP method for this implementation
62		*
63		* @return ReflectionFunctionAbstract The returned reflection object
64		*/
65	10	public function getReflection($method)
66		{
67	10	if (empty($this->reflection)) {
68	10	$this->reflection = $this->getCallbackReflection();
		0 ignored issues – show Documentation Bug introduced 2015-12-08 16:07 UTC by Report Bug Copy Issue Report It seems like `$this->getCallbackReflection()` of type `object<ReflectionMethod>` or `object<ReflectionFunction>` is incompatible with the declared type `object<Respect\Rest\Rout...ectionFunctionAbstract>` of property `$reflection`. Our type inference engine has found an assignment to a property that is incompatible with the declared type of that property. Either this assignment is in error or the assigned type should be added to the documentation/type hint for that property.. Loading history...
69		}
70
71	10	return $this->reflection;
		0 ignored issues – show Bug Best Practice introduced 2015-12-08 16:07 UTC by Report Bug Copy Issue Report The return type of `return $this->reflection;` (`ReflectionMethod\|Reflect...lectionFunctionAbstract`) is incompatible with the return type documented by `Respect\Rest\Routes\Callback::getReflection` of type `Respect\Rest\Routes\ReflectionFunctionAbstract`. If you return a value from a function or method, it should be a sub-type of the type that is given by the parent type f.e. an interface, or abstract method. This is more formally defined by the Lizkov substitution principle, and guarantees that classes that depend on the parent type can use any instance of a child type interchangably. This principle also belongs to the SOLID principles for object oriented design. Let’s take a look at an example: class Author { private $name; public function __construct($name) { $this->name = $name; } public function getName() { return $this->name; } } abstract class Post { public function getAuthor() { return 'Johannes'; } } class BlogPost extends Post { public function getAuthor() { return new Author('Johannes'); } } class ForumPost extends Post { /* ... */ } function my_function(Post $post) { echo strtoupper($post->getAuthor()); } Our function `my_function` expects a `Post` object, and outputs the author of the post. The base class `Post` returns a simple string and outputting a simple string will work just fine. However, the child class `BlogPost` which is a sub-type of `Post` instead decided to return an `object`, and is therefore violating the SOLID principles. If a `BlogPost` were passed to `my_function`, PHP would not complain, but ultimately fail when executing the `strtoupper` call in its body. Loading history...
72		}
73
74		/**
75		* Runs the callback when this route is matched with params
76		*
77		* @param string $method The irrelevant HTTP method for this implementation
78		* @param array $params An array of params for this request
79		*
80		* @see Respect\Rest\Request::$params
81		*
82		* @return mixed Whatever the callback returns
83		*/
84	17	public function runTarget($method, &$params)
85		{
86	17	return call_user_func_array(
87	17	$this->callback,
88	17	array_merge($params, $this->arguments)
89		);
90		}
91		}
92

Respect / Rest

Callback A last analyzed 2019-03-22 22:45 UTC

Complexity

Size/Duplication

Coupling/Cohesion

Test Coverage

Importance

4 Methods

Duplication Side-by-Side

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Callback A
last analyzed 2019-03-22 22:45 UTC