Autoloader::__construct() - Code Metrics - darya/framework - Measure and Improve Code Quality continuously with Scrutinizer

Autoloader::__construct() A
last analyzed 2021-02-13 01:04 UTC

↳ Parent: Autoloader

Complexity

Conditions	1
Paths	1

Size

Total Lines	4
Code Lines	2

Duplication

Lines	0
Ratio	0 %

Importance

Changes	1
Bugs	0	Features	0

Metric	Value
cc	1
eloc	2
c	1
b	0
f	0
nc	1
nop	2
dl	0
loc	4
rs	10

<?php
namespace Darya\Foundation;

/**
 * Darya's class autoloader.
 *
 * TODO: Simplify Autoloader::load().
 * TODO: Maybe make attempt() a generator!
 *
 * @author Chris Andrew <[email protected]>
 */
class Autoloader
{
	/**
	 * Common subdirectories used as a last resort when autoloading.
	 *
	 * @var array
	 */
	private $commonSubdirs = array(
		'Common', 'Classes', 'Controllers', 'Models', 'Tests'
	);

	/**
	 * A map of namespaces to paths to use when autoloading.
	 *
	 * @var array
	 */
	private $namespaces = array();

	/**
	 * Base path to use when autoloading.
	 *
	 * @var string
	 */
	private $basePath;

	/**
	 * Instantiate an autoloader.
	 *
	 * @param string $basePath   Base directory path to load from
	 * @param array  $namespaces Namespace to directory mappings to register with the autoloader
	 */
	public function __construct($basePath = null, array $namespaces = array())
	{
		$this->basePath($basePath);
		$this->namespaces($namespaces);
	}

	/**
	 * Get and optionally set the base directory to load classes from.
	 *
	 * @param string $basePath
	 * @return string
	 */
	public function basePath($basePath = null)
	{
		$this->basePath = $basePath ?: realpath(__DIR__ . '/../../');

		return $this->basePath;
	}

	/**
	 * Register this autoloader.
	 *
	 * @return bool
	 */
	public function register()
	{
		return spl_autoload_register(array($this, 'load'));
	}

	/**
	 * Register namespace to directory mappings to attempt before the
	 * autoloader's default behaviour.
	 *
	 * Duplicate namespaces are permitted. Returns the autoloader's currently
	 * set namespaces after registering any that are given.
	 *
	 * @param array $namespaces Namespace keys and directory values
	 * @return array
	 */
	public function namespaces(array $namespaces = array())
	{
		foreach ($namespaces as $ns => $paths) {
			foreach ((array) $paths as $path) {
				$this->namespaces[] = array($ns, $path);
			}
		}

		return $this->namespaces;
	}

	/**
	 * Attempt to load the class at the given path.
	 *
	 * @param string $path
	 * @return bool
	 */
	public function attempt($path)
	{
		if (is_file($path)) {
			require_once $path;

			return true;
		}

		return false;
	}

	/**
	 * Load a class assuming the namespace is a path.
	 *
	 * Checks common subdirectory names as a last resort if nothing is found.
	 *
	 * @param string $class Class name
	 * @return bool
	 */
	public function load($class)
	{
		// Separate the class name and its namespace
		$parts = explode('\\', $class);
		$className = array_pop($parts);
		$dir = implode('/', $parts);
		$paths = array();

		// Test for potential registered namespace to directory mappings
		foreach ($this->namespaces as $registered) {
			list($ns, $nsPaths) = $registered;

			foreach ((array) $nsPaths as $nsPath) {
				// Try without and with the autoloader's base path
				$nsBasePaths = array('');

				if ($this->basePath) {
					$nsBasePaths[] = $this->basePath . '/';
				}

				foreach ($nsBasePaths as $nsBasePath) {
					if ($class === $ns) {
						array_push($paths, "$nsBasePath$nsPath");
						array_push($paths, "$nsBasePath$nsPath/$className.php");
						array_push($paths, "$nsBasePath" . strtolower($nsPath) . "/$className.php");
					}

					if (strpos($class, $ns) === 0) {
						array_push($paths, "$nsBasePath$nsPath/$dir/$className.php");
						array_push($paths, "$nsBasePath" . strtolower("$nsPath/$dir") . "/$className.php");

						$nsRemain = str_replace('\\', '/', substr($class, strlen($ns)));
						array_push($paths, "$nsBasePath$nsPath/$nsRemain.php");
						array_push($paths, "$nsPath/$nsRemain.php");

						$nsRemainDir = dirname($nsRemain);
						$nsRemainFile = basename($nsRemain);
						array_push($paths, "$nsBasePath$nsPath/" . strtolower($nsRemainDir) . "/$nsRemainFile.php");
					}
				}
			}
		}

		// Try using the namespace as an exact directory mapping
		array_push($paths, $this->basePath . "/$dir/$className.php");

		// Try using the namespace in lowercase as a directory mapping, with
		// only the class name in its original case
		$dirLowercase = strtolower($dir);
		array_push($paths, $this->basePath . "/$dirLowercase/$className.php");

		// Last try using the last part of the namespace as a subdirectory, with
		// and without a trailing 's', as well as any common subdirectory names
		$subdirs = array_merge($this->commonSubdirs, array(
			$className,
			$className . 's',
		));

		foreach ($subdirs as $subdir) {
			array_push($paths, $this->basePath . "/$dir/$subdir/$className.php");

			$subdirLowercase = strtolower($subdir);
			array_push($paths, $this->basePath . "/$dirLowercase/$subdirLowercase/$className.php");
		}

		// Finally, attempt to find the class
		foreach ($paths as $path) {
			if ($this->attempt($path)) {
				return true;
			}
		}

		return false;
	}

}


1			<?php
2			namespace Darya\Foundation;
3
4			/**
5			* Darya's class autoloader.
6			*
7			* TODO: Simplify Autoloader::load().
8			* TODO: Maybe make attempt() a generator!
9			*
10			* @author Chris Andrew <[email protected]>
11			*/
12			class Autoloader
13			{
14			/**
15			* Common subdirectories used as a last resort when autoloading.
16			*
17			* @var array
18			*/
19			private $commonSubdirs = array(
20			'Common', 'Classes', 'Controllers', 'Models', 'Tests'
21			);
22
23			/**
24			* A map of namespaces to paths to use when autoloading.
25			*
26			* @var array
27			*/
28			private $namespaces = array();
29
30			/**
31			* Base path to use when autoloading.
32			*
33			* @var string
34			*/
35			private $basePath;
36
37			/**
38			* Instantiate an autoloader.
39			*
40			* @param string $basePath Base directory path to load from
41			* @param array $namespaces Namespace to directory mappings to register with the autoloader
42			*/
43			public function __construct($basePath = null, array $namespaces = array())
44			{
45			$this->basePath($basePath);
46			$this->namespaces($namespaces);
47			}
48
49			/**
50			* Get and optionally set the base directory to load classes from.
51			*
52			* @param string $basePath
53			* @return string
54			*/
55			public function basePath($basePath = null)
56			{
57			$this->basePath = $basePath ?: realpath(__DIR__ . '/../../');
58
59			return $this->basePath;
60			}
61
62			/**
63			* Register this autoloader.
64			*
65			* @return bool
66			*/
67			public function register()
68			{
69			return spl_autoload_register(array($this, 'load'));
70			}
71
72			/**
73			* Register namespace to directory mappings to attempt before the
74			* autoloader's default behaviour.
75			*
76			* Duplicate namespaces are permitted. Returns the autoloader's currently
77			* set namespaces after registering any that are given.
78			*
79			* @param array $namespaces Namespace keys and directory values
80			* @return array
81			*/
82			public function namespaces(array $namespaces = array())
83			{
84			foreach ($namespaces as $ns => $paths) {
85			foreach ((array) $paths as $path) {
86			$this->namespaces[] = array($ns, $path);
87			}
88			}
89
90			return $this->namespaces;
91			}
92
93			/**
94			* Attempt to load the class at the given path.
95			*
96			* @param string $path
97			* @return bool
98			*/
99			public function attempt($path)
100			{
101			if (is_file($path)) {
102			require_once $path;
103
104			return true;
105			}
106
107			return false;
108			}
109
110			/**
111			* Load a class assuming the namespace is a path.
112			*
113			* Checks common subdirectory names as a last resort if nothing is found.
114			*
115			* @param string $class Class name
116			* @return bool
117			*/
118			public function load($class)
119			{
120			// Separate the class name and its namespace
121			$parts = explode('\\', $class);
122			$className = array_pop($parts);
123			$dir = implode('/', $parts);
124			$paths = array();
125
126			// Test for potential registered namespace to directory mappings
127			foreach ($this->namespaces as $registered) {
128			list($ns, $nsPaths) = $registered;
129
130			foreach ((array) $nsPaths as $nsPath) {
131			// Try without and with the autoloader's base path
132			$nsBasePaths = array('');
133
134			if ($this->basePath) {
135			$nsBasePaths[] = $this->basePath . '/';
136			}
137
138			foreach ($nsBasePaths as $nsBasePath) {
139			if ($class === $ns) {
140			array_push($paths, "$nsBasePath$nsPath");
141			array_push($paths, "$nsBasePath$nsPath/$className.php");
142			array_push($paths, "$nsBasePath" . strtolower($nsPath) . "/$className.php");
143			}
144
145			if (strpos($class, $ns) === 0) {
146			array_push($paths, "$nsBasePath$nsPath/$dir/$className.php");
147			array_push($paths, "$nsBasePath" . strtolower("$nsPath/$dir") . "/$className.php");
148
149			$nsRemain = str_replace('\\', '/', substr($class, strlen($ns)));
150			array_push($paths, "$nsBasePath$nsPath/$nsRemain.php");
151			array_push($paths, "$nsPath/$nsRemain.php");
152
153			$nsRemainDir = dirname($nsRemain);
154			$nsRemainFile = basename($nsRemain);
155			array_push($paths, "$nsBasePath$nsPath/" . strtolower($nsRemainDir) . "/$nsRemainFile.php");
156			}
157			}
158			}
159			}
160
161			// Try using the namespace as an exact directory mapping
162			array_push($paths, $this->basePath . "/$dir/$className.php");
163
164			// Try using the namespace in lowercase as a directory mapping, with
165			// only the class name in its original case
166			$dirLowercase = strtolower($dir);
167			array_push($paths, $this->basePath . "/$dirLowercase/$className.php");
168
169			// Last try using the last part of the namespace as a subdirectory, with
170			// and without a trailing 's', as well as any common subdirectory names
171			$subdirs = array_merge($this->commonSubdirs, array(
172			$className,
173			$className . 's',
174			));
175
176			foreach ($subdirs as $subdir) {
177			array_push($paths, $this->basePath . "/$dir/$subdir/$className.php");
178
179			$subdirLowercase = strtolower($subdir);
180			array_push($paths, $this->basePath . "/$dirLowercase/$subdirLowercase/$className.php");
181			}
182
183			// Finally, attempt to find the class
184			foreach ($paths as $path) {
185			if ($this->attempt($path)) {
186			return true;
187			}
188			}
189
190			return false;
191			}
192
193			}
194

darya / framework

Autoloader::__construct() A last analyzed 2021-02-13 01:04 UTC

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Autoloader::__construct() A
last analyzed 2021-02-13 01:04 UTC