ClassFinder::getIterator() - Code Metrics - phpgearbox/class-finder - Measure and Improve Code Quality continuously with Scrutinizer

ClassFinder::getIterator() A
last analyzed 2017-03-10 01:21 UTC

↳ Parent: ClassFinder

Complexity

Conditions	1
Paths	1

Size

Total Lines	4
Code Lines	2

Duplication

Lines	0
Ratio	0 %

Importance

Changes

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

<?php declare(strict_types=1);
////////////////////////////////////////////////////////////////////////////////
// __________ __             ________                   __________
// \______   \  |__ ______  /  _____/  ____ _____ ______\______   \ _______  ___
//  |     ___/  |  \\____ \/   \  ____/ __ \\__  \\_  __ \    |  _//  _ \  \/  /
//  |    |   |   Y  \  |_> >    \_\  \  ___/ / __ \|  | \/    |   (  <_> >    <
//  |____|   |___|  /   __/ \______  /\___  >____  /__|  |______  /\____/__/\_ \
//                \/|__|           \/     \/     \/             \/            \/
// -----------------------------------------------------------------------------
//          Designed and Developed by Brad Jones <brad @="bjc.id.au" />
// -----------------------------------------------------------------------------
////////////////////////////////////////////////////////////////////////////////

namespace Gears;

use Closure;
use Exception;
use Traversable;
use ArrayIterator;
use ReflectionClass;
use ReflectionException;
use Gears\String\Str;
use Composer\Autoload\ClassLoader;
use Symfony\Component\Finder\Finder;
use Symfony\Component\Finder\SplFileInfo;

class ClassFinder implements IClassFinder
{
    /**
     * The composer class loader as returned from `vendor/autoload.php`.
     * 
     * @var ClassLoader
     */
    protected $composer;

    /**
     * This will be filled with fully qualified class names as they are found
     * by searching through the various class maps provided by composer.
     * 
     * @var array|string[]
     */
    protected $foundClasses = [];

    /**
     * The namespace to filter by will be stored here.
     *
     * > NOTE: This must be set, otherwise we could have a
     *         very large data set to search through.
     * 
     * @var string
     */
    protected $namespace;

    /**
     * The interface name to filter by will be stored here.
     * 
     * @var string
     */
    protected $implements;

    /**
     * The parent class to filter by will be stored here.
     * 
     * @var string
     */
    protected $extends;

    /**
     * An optional custom filter method can be set.
     * Otherwise we will use the `defaultFilter` method in this class.
     * 
     * @var Closure
     */
    protected $filter;
    
    /**
     * Constructor.
     * 
     * @param ClassLoader $composer We rely on the information provided by the
     *                              composer class maps in order to find classes
     *                              for you.
     */
    public function __construct(ClassLoader $composer)
    {
        $this->composer = $composer;
    }
    
    public function namespace(string $namespace): IClassFinder

    {
        $this->namespace = $namespace; return $this;
class A {
    var $property;
}
    }
    
    public function implements(string $interface): IClassFinder
    {
        $this->implements = $interface; return $this;
    }
    
    public function extends(string $parent): IClassFinder
    {
        $this->extends = $parent; return $this;
    }
    
    public function filterBy(Closure $filter): IClassFinder
    {
        if ($this->implements !== null || $this->extends != null)
        {
            throw new Exception
            (
                'Can not set a custom filter and filter '.
                'by `implements` or `extends`!'
            );
        }

        $this->filter = $filter; return $this;
    }
    
    public function search(): array
    {
        $this->foundClasses = [];
        
        if ($this->namespace === null)
        {
            throw new Exception('Namespace must be set!');
        }

        $this->searchClassMap();
        $this->searchPsrMaps();
        $this->runFilter();
        
        $this->namespace = null;
        $this->implements = null;
        $this->extends = null;

        return $this->foundClasses;
    }
    
    public function getIterator(): Traversable
    {
        return new ArrayIterator($this->search());
    }
    
    public function count(): int
    {
        return iterator_count($this->getIterator());
    }
    
    /**
     * Searches the composer class map.
     *
     * Results are added to the `$foundClasses` array.
     * 
     * @return void
     */
    protected function searchClassMap()
    {
        foreach ($this->composer->getClassMap() as $fqcn => $file)
        {
            if (Str::s($fqcn)->is($this->namespace.'*'))

            {
                $this->foundClasses[realpath($file)] = $fqcn;
            }
        }
    }
    
    /**
     * Searches the composer PSR-x class maps.
     *
     * Results are added to the `$foundClasses` array.
     * 
     * @return void
     */
    protected function searchPsrMaps()
    {
        $prefixes = array_merge
        (
            $this->composer->getPrefixes(),
            $this->composer->getPrefixesPsr4()
        );

        $trimmedNs = Str::s($this->namespace)->trimRight('\\');

        $nsSegments = $trimmedNs->split('\\');

        foreach ($prefixes as $ns => $dirs)
        {
            $foundSegments = Str::s($ns)->trimRight('\\')
            ->longestCommonPrefix($trimmedNs)->split('\\');

            foreach ($foundSegments as $key => $segment)
            {
                if ((string) $nsSegments[$key] !== (string) $segment)
                {
                    continue 2;
                }
            }

            foreach ($dirs as $dir)
            {
                foreach ((new Finder)->in($dir)->files()->name('*.php') as $file)
                {
                    if ($file instanceof SplFileInfo)
                    {
                        $fqcn = (string)Str::s($file->getRelativePathname())
                        ->trimRight('.php')
                        ->replace('/', '\\')
                        ->ensureLeft($ns);

                        if (Str::s($fqcn)->is($this->namespace.'*'))

                        {
                            $this->foundClasses[$file->getRealPath()] = $fqcn;
                        }
                    }
                }
            }
        }
    }
    
    /**
     * Runs a filter over the array of `$foundCLasses`.
     *
     * Also ensures the classes are real by creating a ReflectionClass instance.
     * By default we use the `defaultFilter` method.
     * 
     * @return void
     */
    protected function runFilter()
    {
        foreach ($this->foundClasses as $file => $fqcn)
        {
            try
            {
                $rClass = new ReflectionClass($fqcn);
            }
            catch (ReflectionException $e)
            {
                $result = false;
$myVar = 'Value';
$higher = false;

if (rand(1, 6) > 3) {
    $higher = true;
} else {
    $higher = false;
}
            }

            if ($this->filter === null)
            {
                $result = $this->defaultFilter($rClass);
            }
            else
            {
                $result = call_user_func($this->filter, $rClass);
            }

            if ($result === false)
            {
                unset($this->foundClasses[$file]);
            }
        }
    }
    
    /**
     * The default filter run by `runFilter()`.
     * 
     * Further filters by  interface or parent class and also filters
     * out actual Interfaces, Abstract Classes and Traits.
     * 
     * @param  ReflectionClass $rClass
     * @return bool
     */
    protected function defaultFilter(ReflectionClass $rClass)
    {
        if ($this->implements !== null)
        {
            return $rClass->implementsInterface($this->implements) && !$rClass->isInterface();
        }

        if ($this->extends !== null)
        {
            return $rClass->isSubclassOf($this->extends) && !$rClass->isAbstract();
        }

        return (!$rClass->isInterface() && !$rClass->isAbstract() && !$rClass->isTrait());
    }
}

1		<?php declare(strict_types=1);
2		////////////////////////////////////////////////////////////////////////////////
3		// __________ __ ________ __________
4		// \______ \ \|__ ______ / _____/ ____ _____ ______\______ \ _______ ___
5		// \| ___/ \| \\____ \/ \ ____/ __ \\__ \\_ __ \ \| _// _ \ \/ /
6		// \| \| \| Y \ \|_> > \_\ \ ___/ / __ \\| \| \/ \| ( <_> > <
7		// \|____\| \|___\| / __/ \______ /\___ >____ /__\| \|______ /\____/__/\_ \
8		// \/\|__\| \/ \/ \/ \/ \/
9		// -----------------------------------------------------------------------------
10		// Designed and Developed by Brad Jones <brad @="bjc.id.au" />
11		// -----------------------------------------------------------------------------
12		////////////////////////////////////////////////////////////////////////////////
13
14		namespace Gears;
15
16		use Closure;
17		use Exception;
18		use Traversable;
19		use ArrayIterator;
20		use ReflectionClass;
21		use ReflectionException;
22		use Gears\String\Str;
23		use Composer\Autoload\ClassLoader;
24		use Symfony\Component\Finder\Finder;
25		use Symfony\Component\Finder\SplFileInfo;
26
27		class ClassFinder implements IClassFinder
28		{
29		/**
30		* The composer class loader as returned from `vendor/autoload.php`.
31		*
32		* @var ClassLoader
33		*/
34		protected $composer;
35
36		/**
37		* This will be filled with fully qualified class names as they are found
38		* by searching through the various class maps provided by composer.
39		*
40		* @var array\|string[]
41		*/
42		protected $foundClasses = [];
43
44		/**
45		* The namespace to filter by will be stored here.
46		*
47		* > NOTE: This must be set, otherwise we could have a
48		* very large data set to search through.
49		*
50		* @var string
51		*/
52		protected $namespace;
53
54		/**
55		* The interface name to filter by will be stored here.
56		*
57		* @var string
58		*/
59		protected $implements;
60
61		/**
62		* The parent class to filter by will be stored here.
63		*
64		* @var string
65		*/
66		protected $extends;
67
68		/**
69		* An optional custom filter method can be set.
70		* Otherwise we will use the `defaultFilter` method in this class.
71		*
72		* @var Closure
73		*/
74		protected $filter;
75
76		/**
77		* Constructor.
78		*
79		* @param ClassLoader $composer We rely on the information provided by the
80		* composer class maps in order to find classes
81		* for you.
82		*/
83		public function __construct(ClassLoader $composer)
84		{
85		$this->composer = $composer;
86		}
87
88		public function namespace(string $namespace): IClassFinder
		0 ignored issues – show Coding Style introduced 2017-02-27 07:27 UTC by Report Bug Copy Issue Report Possible parse error: non-abstract method defined as abstract Loading history... Coding Style introduced 2017-02-27 07:27 UTC by Report Bug Copy Issue Report It is generally advisable to only define one property per statement. Only declaring a single property per statement allows you to later on add doc comments more easily. It is also recommended by PSR2, so it is a common style that many people expect. Loading history...
89		{
90		$this->namespace = $namespace; return $this;
		0 ignored issues – show Coding Style introduced 2017-02-27 07:27 UTC by Report Bug Copy Issue Report The visibility should be declared for property `$this`. The PSR-2 coding standard requires that all properties in a class have their visibility explicitly declared. If you declare a property using class A { var $property; } the property is implicitly global. To learn more about the PSR-2, please see the PHP-FIG site on the PSR-2. Loading history...
91		}
92
93		public function implements(string $interface): IClassFinder
94		{
95		$this->implements = $interface; return $this;
96		}
97
98		public function extends(string $parent): IClassFinder
99		{
100		$this->extends = $parent; return $this;
101		}
102
103		public function filterBy(Closure $filter): IClassFinder
104		{
105		if ($this->implements !== null \|\| $this->extends != null)
106		{
107		throw new Exception
108		(
109		'Can not set a custom filter and filter '.
110		'by `implements` or `extends`!'
111		);
112		}
113
114		$this->filter = $filter; return $this;
115		}
116
117		public function search(): array
118		{
119		$this->foundClasses = [];
120
121		if ($this->namespace === null)
122		{
123		throw new Exception('Namespace must be set!');
124		}
125
126		$this->searchClassMap();
127		$this->searchPsrMaps();
128		$this->runFilter();
129
130		$this->namespace = null;
131		$this->implements = null;
132		$this->extends = null;
133
134		return $this->foundClasses;
135		}
136
137		public function getIterator(): Traversable
138		{
139		return new ArrayIterator($this->search());
140		}
141
142		public function count(): int
143		{
144		return iterator_count($this->getIterator());
145		}
146
147		/**
148		* Searches the composer class map.
149		*
150		* Results are added to the `$foundClasses` array.
151		*
152		* @return void
153		*/
154		protected function searchClassMap()
155		{
156		foreach ($this->composer->getClassMap() as $fqcn => $file)
157		{
158	View Code Duplication	if (Str::s($fqcn)->is($this->namespace.'*'))
		0 ignored issues – show Duplication introduced 2017-02-27 07:27 UTC by Report Bug Copy Issue Report This code seems to be duplicated across your project. Duplicated code is one of the most pungent code smells. If you need to duplicate the same code in three or more different places, we strongly encourage you to look into extracting the code into a single class or operation. You can also find more detailed suggestions in the “Code” section of your repository. Loading history...
159		{
160		$this->foundClasses[realpath($file)] = $fqcn;
161		}
162		}
163		}
164
165		/**
166		* Searches the composer PSR-x class maps.
167		*
168		* Results are added to the `$foundClasses` array.
169		*
170		* @return void
171		*/
172		protected function searchPsrMaps()
173		{
174		$prefixes = array_merge
175		(
176		$this->composer->getPrefixes(),
177		$this->composer->getPrefixesPsr4()
178		);
179
180		$trimmedNs = Str::s($this->namespace)->trimRight('\\');
181
182		$nsSegments = $trimmedNs->split('\\');
183
184		foreach ($prefixes as $ns => $dirs)
185		{
186		$foundSegments = Str::s($ns)->trimRight('\\')
187		->longestCommonPrefix($trimmedNs)->split('\\');
188
189		foreach ($foundSegments as $key => $segment)
190		{
191		if ((string) $nsSegments[$key] !== (string) $segment)
192		{
193		continue 2;
194		}
195		}
196
197		foreach ($dirs as $dir)
198		{
199		foreach ((new Finder)->in($dir)->files()->name('*.php') as $file)
200		{
201		if ($file instanceof SplFileInfo)
202		{
203		$fqcn = (string)Str::s($file->getRelativePathname())
204		->trimRight('.php')
205		->replace('/', '\\')
206		->ensureLeft($ns);
207
208	View Code Duplication	if (Str::s($fqcn)->is($this->namespace.'*'))
		0 ignored issues – show Duplication introduced 2017-02-27 07:27 UTC by Report Bug Copy Issue Report This code seems to be duplicated across your project. Duplicated code is one of the most pungent code smells. If you need to duplicate the same code in three or more different places, we strongly encourage you to look into extracting the code into a single class or operation. You can also find more detailed suggestions in the “Code” section of your repository. Loading history...
209		{
210		$this->foundClasses[$file->getRealPath()] = $fqcn;
211		}
212		}
213		}
214		}
215		}
216		}
217
218		/**
219		* Runs a filter over the array of `$foundCLasses`.
220		*
221		* Also ensures the classes are real by creating a ReflectionClass instance.
222		* By default we use the `defaultFilter` method.
223		*
224		* @return void
225		*/
226		protected function runFilter()
227		{
228		foreach ($this->foundClasses as $file => $fqcn)
229		{
230		try
231		{
232		$rClass = new ReflectionClass($fqcn);
233		}
234		catch (ReflectionException $e)
235		{
236		$result = false;
		0 ignored issues – show Unused Code introduced 2017-02-27 07:26 UTC by Report Bug Copy Issue Report `$result` is not used, you could remove the assignment. This check looks for variable assignements that are either overwritten by other assignments or where the variable is not used subsequently. $myVar = 'Value'; $higher = false; if (rand(1, 6) > 3) { $higher = true; } else { $higher = false; } Both the `$myVar` assignment in line 1 and the `$higher` assignment in line 2 are dead. The first because `$myVar` is never used and the second because `$higher` is always overwritten for every possible time line. Loading history...
237		}
238
239		if ($this->filter === null)
240		{
241		$result = $this->defaultFilter($rClass);
242		}
243		else
244		{
245		$result = call_user_func($this->filter, $rClass);
246		}
247
248		if ($result === false)
249		{
250		unset($this->foundClasses[$file]);
251		}
252		}
253		}
254
255		/**
256		* The default filter run by `runFilter()`.
257		*
258		* Further filters by interface or parent class and also filters
259		* out actual Interfaces, Abstract Classes and Traits.
260		*
261		* @param ReflectionClass $rClass
262		* @return bool
263		*/
264		protected function defaultFilter(ReflectionClass $rClass)
265		{
266		if ($this->implements !== null)
267		{
268		return $rClass->implementsInterface($this->implements) && !$rClass->isInterface();
269		}
270
271		if ($this->extends !== null)
272		{
273		return $rClass->isSubclassOf($this->extends) && !$rClass->isAbstract();
274		}
275
276		return (!$rClass->isInterface() && !$rClass->isAbstract() && !$rClass->isTrait());
277		}
278		}

phpgearbox / class-finder

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ClassFinder::getIterator() A last analyzed 2017-03-10 01:21 UTC

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ClassFinder::getIterator() A
last analyzed 2017-03-10 01:21 UTC