ClassManifest::validateItemCache() - Code Metrics - Inspection of "Merge pull request #6706 from open-sausages/pulls/..." - silverstripe/silverstripe-framework - Measure and Improve Code Quality continuously with Scrutinizer

Completed

Push — master ( 1efa22...cfa6a3 )

by Sam

created 2017-03-20 21:29 UTC

ClassManifest::validateItemCache() B

↳ Parent: ClassManifest

Complexity

Conditions	6
Paths	5

Size

Total Lines	19
Code Lines	10

Duplication

Lines	0
Ratio	0 %

Importance

Changes

Metric	Value
cc	6
eloc	10
nc	5
nop	1
dl	0
loc	19
rs	8.8571
c	0
b	0
f	0

<?php

namespace SilverStripe\Core\Manifest;

use Exception;
use PhpParser\Error;
use PhpParser\NodeTraverser;
use PhpParser\NodeVisitor\NameResolver;
use PhpParser\Parser;
use PhpParser\ParserFactory;
use Psr\SimpleCache\CacheInterface;
use SilverStripe\Core\Cache\CacheFactory;
use SilverStripe\Dev\TestOnly;

/**
 * A utility class which builds a manifest of all classes, interfaces and caches it.
 *
 * It finds the following information:
 *   - Class and interface names and paths.
 *   - All direct and indirect descendants of a class.
 *   - All implementors of an interface.
 */
class ClassManifest
{
    /**
     * base manifest directory
     * @var string
     */
    protected $base;

    /**
     * Set if including test classes
     *
     * @see TestOnly
     * @var bool
     */
    protected $tests;

    /**
     * Cache to use, if caching.
     * Set to null if uncached.
     *
     * @var CacheInterface|null
     */
    protected $cache;

    /**
     * Key to use for the top level cache of all items
     *
     * @var string
     */
    protected $cacheKey;

    /**
     * Map of classes to paths
     *
     * @var array
     */
    protected $classes      = array();

    /**
     * List of root classes with no parent class
     *
     * @var array
     */
    protected $roots = array();

    /**
     * List of direct children for any class
     *
     * @var array
     */
    protected $children = array();

    /**
     * List of descendents for any class (direct + indirect children)
     *
     * @var array
     */
    protected $descendants = array();

    /**
     * List of interfaces and paths to those files
     *
     * @var array
     */
    protected $interfaces = array();

    /**
     * List of direct implementors of any interface
     *
     * @var array
     */
    protected $implementors = array();

    /**
     * Map of traits to paths
     *
     * @var array
     */
    protected $traits = array();

    /**
     * PHP Parser for parsing found files
     *
     * @var Parser
     */
    private $parser;

    /**
     * @var NodeTraverser
     */
    private $traverser;

    /**
     * @var ClassManifestVisitor
     */
    private $visitor;

    /**
     * Constructs and initialises a new class manifest, either loading the data
     * from the cache or re-scanning for classes.
     *
     * @param string $base The manifest base path.
     * @param bool $includeTests Include the contents of "tests" directories.
     * @param bool $forceRegen Force the manifest to be regenerated.
     * @param CacheFactory $cacheFactory Optional cache to use. Set to null to not cache.
     */
    public function __construct(
        $base,
        $includeTests = false,
        $forceRegen = false,
        CacheFactory $cacheFactory = null
    ) {
        $this->base = $base;
        $this->tests = $includeTests;

        // build cache from factory
        if ($cacheFactory) {
            $this->cache = $cacheFactory->create(
                CacheInterface::class.'.classmanifest',
                [ 'namespace' => 'classmanifest' . ($includeTests ? '_tests' : '') ]
            );
        }
        $this->cacheKey = 'manifest';

        if (!$forceRegen && $this->cache && ($data = $this->cache->get($this->cacheKey))) {
            $this->classes = $data['classes'];
            $this->descendants = $data['descendants'];
            $this->interfaces = $data['interfaces'];
            $this->implementors = $data['implementors'];
            $this->traits = $data['traits'];
        } else {
            $this->regenerate();
        }
    }

    /**
     * Get or create active parser
     *
     * @return Parser
     */
    public function getParser()
    {
        if (!$this->parser) {
            $this->parser = (new ParserFactory)->create(ParserFactory::PREFER_PHP7);
        }

        return $this->parser;
    }

    public function getTraverser()
    {
        if (!$this->traverser) {
            $this->traverser = new NodeTraverser;
            $this->traverser->addVisitor(new NameResolver);
            $this->traverser->addVisitor($this->getVisitor());
        }

        return $this->traverser;
    }

    public function getVisitor()
    {
        if (!$this->visitor) {
            $this->visitor = new ClassManifestVisitor;
        }

        return $this->visitor;
    }

    /**
     * Returns the file path to a class or interface if it exists in the
     * manifest.
     *
     * @param  string $name
     * @return string|null
     */
    public function getItemPath($name)
    {
        $name = strtolower($name);

        foreach ([
            $this->classes,
            $this->interfaces,
            $this->traits
        ] as $source) {
            if (isset($source[$name]) && file_exists($source[$name])) {
                return $source[$name];
            }
        }
        return null;
    }

    /**
     * Returns a map of lowercased class names to file paths.
     *
     * @return array
     */
    public function getClasses()
    {
        return $this->classes;
    }

    /**
     * Returns a lowercase array of all the class names in the manifest.
     *
     * @return array
     */
    public function getClassNames()
    {
        return array_keys($this->classes);
    }

    /**
     * Returns a lowercase array of all trait names in the manifest
     *
     * @return array
     */
    public function getTraitNames()
    {
        return array_keys($this->traits);
    }

    /**
     * Returns an array of all the descendant data.
     *
     * @return array
     */
    public function getDescendants()
    {
        return $this->descendants;
    }

    /**
     * Returns an array containing all the descendants (direct and indirect)
     * of a class.
     *
     * @param  string|object $class
     * @return array
     */
    public function getDescendantsOf($class)
    {
        if (is_object($class)) {
            $class = get_class($class);
        }

        $lClass = strtolower($class);

        if (array_key_exists($lClass, $this->descendants)) {
            return $this->descendants[$lClass];
        } else {
            return array();
        }
    }

    /**
     * Returns a map of lowercased interface names to file locations.
     *
     * @return array
     */
    public function getInterfaces()
    {
        return $this->interfaces;
    }

    /**
     * Returns a map of lowercased interface names to the classes the implement
     * them.
     *
     * @return array
     */
    public function getImplementors()
    {
        return $this->implementors;
    }

    /**
     * Returns an array containing the class names that implement a certain
     * interface.
     *
     * @param  string $interface
     * @return array
     */
    public function getImplementorsOf($interface)
    {
        $interface = strtolower($interface);

        if (array_key_exists($interface, $this->implementors)) {
            return $this->implementors[$interface];
        } else {
            return array();
        }
    }

    /**
     * Get module that owns this class
     *
     * @param string $class Class name
     * @return Module
     */
    public function getOwnerModule($class)
    {
        $path = realpath($this->getItemPath($class));
        if (!$path) {
            return null;
        }

        /** @var Module $rootModule */
        $rootModule = null;

        // Find based on loaded modules
        $modules = ModuleLoader::instance()->getManifest()->getModules();
        foreach ($modules as $module) {
            // Leave root module as fallback
            if (empty($module->getRelativePath())) {
                $rootModule = $module;
            } elseif (stripos($path, realpath($module->getPath())) === 0) {
                return $module;
            }
        }

        // Fall back to top level module
        return $rootModule;
    }

    /**
     * Completely regenerates the manifest file.
     */
    public function regenerate()
    {
        $resets = array(
            'classes', 'roots', 'children', 'descendants', 'interfaces',
            'implementors', 'traits'
        );

        // Reset the manifest so stale info doesn't cause errors.
        foreach ($resets as $reset) {
            $this->$reset = array();
        }

        $finder = new ManifestFileFinder();
        $finder->setOptions(array(
            'name_regex'    => '/^[^_].*\\.php$/',
            'ignore_files'  => array('index.php', 'main.php', 'cli-script.php'),
            'ignore_tests'  => !$this->tests,
            'file_callback' => array($this, 'handleFile'),
        ));
        $finder->find($this->base);

        foreach ($this->roots as $root) {
            $this->coalesceDescendants($root);
        }

        if ($this->cache) {
            $data = array(
                'classes'      => $this->classes,
                'descendants'  => $this->descendants,
                'interfaces'   => $this->interfaces,
                'implementors' => $this->implementors,
                'traits'       => $this->traits,
            );
            $this->cache->set($this->cacheKey, $data);
        }
    }

    public function handleFile($basename, $pathname)
    {
        $classes    = null;
        $interfaces = null;
        $traits = null;

        // The results of individual file parses are cached, since only a few
        // files will have changed and TokenisedRegularExpression is quite
        // slow. A combination of the file name and file contents hash are used,
        // since just using the datetime lead to problems with upgrading.
        $key = preg_replace('/[^a-zA-Z0-9_]/', '_', $basename) . '_' . md5_file($pathname);

        // Attempt to load from cache
        if ($this->cache
            && ($data = $this->cache->get($key))
            && $this->validateItemCache($data)
        ) {
            $classes = $data['classes'];
            $interfaces = $data['interfaces'];
            $traits = $data['traits'];
        } else {
            // Build from php file parser
            $fileContents = ClassContentRemover::remove_class_content($pathname);
            try {
                $stmts = $this->getParser()->parse($fileContents);
            } catch (Error $e) {
                // if our mangled contents breaks, try again with the proper file contents
                $stmts = $this->getParser()->parse(file_get_contents($pathname));
            }
            $this->getTraverser()->traverse($stmts);
/**
 * @return array|string
 */
function returnsDifferentValues($x) {
    if ($x) {
        return 'foo';
    }

    return array();
}

$x = returnsDifferentValues($y);
if (is_array($x)) {
    // $x is an array.
}

            $classes = $this->getVisitor()->getClasses();
            $interfaces = $this->getVisitor()->getInterfaces();
            $traits = $this->getVisitor()->getTraits();

            // Save back to cache if configured
            if ($this->cache) {
                $cache = array(
                    'classes' => $classes,
                    'interfaces' => $interfaces,
                    'traits' => $traits,
                );
                $this->cache->set($key, $cache);
            }
        }

        // Merge this data into the global list
        foreach ($classes as $className => $classInfo) {
            $extends = isset($classInfo['extends']) ? $classInfo['extends'] : null;
            $implements = isset($classInfo['interfaces']) ? $classInfo['interfaces'] : null;

            $lowercaseName = strtolower($className);
            if (array_key_exists($lowercaseName, $this->classes)) {
                throw new Exception(sprintf(
                    'There are two files containing the "%s" class: "%s" and "%s"',
                    $className,
                    $this->classes[$lowercaseName],
                    $pathname
                ));
            }

            $this->classes[$lowercaseName] = $pathname;

            if ($extends) {
                foreach ($extends as $ancestor) {
                    $ancestor = strtolower($ancestor);

                    if (!isset($this->children[$ancestor])) {
                        $this->children[$ancestor] = array($className);
                    } else {
                        $this->children[$ancestor][] = $className;
                    }
                }
            } else {
                $this->roots[] = $className;
            }

            if ($implements) {
                foreach ($implements as $interface) {
                    $interface = strtolower($interface);

                    if (!isset($this->implementors[$interface])) {
                        $this->implementors[$interface] = array($className);
                    } else {
                        $this->implementors[$interface][] = $className;
                    }
                }
            }
        }

        foreach ($interfaces as $interfaceName => $interfaceInfo) {
            $this->interfaces[strtolower($interfaceName)] = $pathname;
        }
        foreach ($traits as $traitName => $traitInfo) {
            $this->traits[strtolower($traitName)] = $pathname;
        }
    }

    /**
     * Recursively coalesces direct child information into full descendant
     * information.
     *
     * @param  string $class
     * @return array
     */
    protected function coalesceDescendants($class)
    {
        $lClass = strtolower($class);

        if (array_key_exists($lClass, $this->children)) {
            $this->descendants[$lClass] = array();

            foreach ($this->children[$lClass] as $class) {
                $this->descendants[$lClass] = array_merge(
                    $this->descendants[$lClass],
                    array($class),
                    $this->coalesceDescendants($class)
                );
            }

            return $this->descendants[$lClass];
        } else {
            return array();
        }
    }

    /**
     * Verify that cached data is valid for a single item
     *
     * @param array $data
     * @return bool
     */
    protected function validateItemCache($data)
    {
        foreach (['classes', 'interfaces', 'traits'] as $key) {
            // Must be set
            if (!isset($data[$key])) {
                return false;
            }
            // and an array
            if (!is_array($data[$key])) {
                return false;
            }
            // Detect legacy cache keys (non-associative)
            $array = $data[$key];
            if (!empty($array) && is_numeric(key($array))) {
                return false;
            }
        }
        return true;
    }
}


1			<?php
2
3			namespace SilverStripe\Core\Manifest;
4
5			use Exception;
6			use PhpParser\Error;
7			use PhpParser\NodeTraverser;
8			use PhpParser\NodeVisitor\NameResolver;
9			use PhpParser\Parser;
10			use PhpParser\ParserFactory;
11			use Psr\SimpleCache\CacheInterface;
12			use SilverStripe\Core\Cache\CacheFactory;
13			use SilverStripe\Dev\TestOnly;
14
15			/**
16			* A utility class which builds a manifest of all classes, interfaces and caches it.
17			*
18			* It finds the following information:
19			* - Class and interface names and paths.
20			* - All direct and indirect descendants of a class.
21			* - All implementors of an interface.
22			*/
23			class ClassManifest
24			{
25			/**
26			* base manifest directory
27			* @var string
28			*/
29			protected $base;
30
31			/**
32			* Set if including test classes
33			*
34			* @see TestOnly
35			* @var bool
36			*/
37			protected $tests;
38
39			/**
40			* Cache to use, if caching.
41			* Set to null if uncached.
42			*
43			* @var CacheInterface\|null
44			*/
45			protected $cache;
46
47			/**
48			* Key to use for the top level cache of all items
49			*
50			* @var string
51			*/
52			protected $cacheKey;
53
54			/**
55			* Map of classes to paths
56			*
57			* @var array
58			*/
59			protected $classes = array();
60
61			/**
62			* List of root classes with no parent class
63			*
64			* @var array
65			*/
66			protected $roots = array();
67
68			/**
69			* List of direct children for any class
70			*
71			* @var array
72			*/
73			protected $children = array();
74
75			/**
76			* List of descendents for any class (direct + indirect children)
77			*
78			* @var array
79			*/
80			protected $descendants = array();
81
82			/**
83			* List of interfaces and paths to those files
84			*
85			* @var array
86			*/
87			protected $interfaces = array();
88
89			/**
90			* List of direct implementors of any interface
91			*
92			* @var array
93			*/
94			protected $implementors = array();
95
96			/**
97			* Map of traits to paths
98			*
99			* @var array
100			*/
101			protected $traits = array();
102
103			/**
104			* PHP Parser for parsing found files
105			*
106			* @var Parser
107			*/
108			private $parser;
109
110			/**
111			* @var NodeTraverser
112			*/
113			private $traverser;
114
115			/**
116			* @var ClassManifestVisitor
117			*/
118			private $visitor;
119
120			/**
121			* Constructs and initialises a new class manifest, either loading the data
122			* from the cache or re-scanning for classes.
123			*
124			* @param string $base The manifest base path.
125			* @param bool $includeTests Include the contents of "tests" directories.
126			* @param bool $forceRegen Force the manifest to be regenerated.
127			* @param CacheFactory $cacheFactory Optional cache to use. Set to null to not cache.
128			*/
129			public function __construct(
130			$base,
131			$includeTests = false,
132			$forceRegen = false,
133			CacheFactory $cacheFactory = null
134			) {
135			$this->base = $base;
136			$this->tests = $includeTests;
137
138			// build cache from factory
139			if ($cacheFactory) {
140			$this->cache = $cacheFactory->create(
141			CacheInterface::class.'.classmanifest',
142			[ 'namespace' => 'classmanifest' . ($includeTests ? '_tests' : '') ]
143			);
144			}
145			$this->cacheKey = 'manifest';
146
147			if (!$forceRegen && $this->cache && ($data = $this->cache->get($this->cacheKey))) {
148			$this->classes = $data['classes'];
149			$this->descendants = $data['descendants'];
150			$this->interfaces = $data['interfaces'];
151			$this->implementors = $data['implementors'];
152			$this->traits = $data['traits'];
153			} else {
154			$this->regenerate();
155			}
156			}
157
158			/**
159			* Get or create active parser
160			*
161			* @return Parser
162			*/
163			public function getParser()
164			{
165			if (!$this->parser) {
166			$this->parser = (new ParserFactory)->create(ParserFactory::PREFER_PHP7);
167			}
168
169			return $this->parser;
170			}
171
172			public function getTraverser()
173			{
174			if (!$this->traverser) {
175			$this->traverser = new NodeTraverser;
176			$this->traverser->addVisitor(new NameResolver);
177			$this->traverser->addVisitor($this->getVisitor());
178			}
179
180			return $this->traverser;
181			}
182
183			public function getVisitor()
184			{
185			if (!$this->visitor) {
186			$this->visitor = new ClassManifestVisitor;
187			}
188
189			return $this->visitor;
190			}
191
192			/**
193			* Returns the file path to a class or interface if it exists in the
194			* manifest.
195			*
196			* @param string $name
197			* @return string\|null
198			*/
199			public function getItemPath($name)
200			{
201			$name = strtolower($name);
202
203			foreach ([
204			$this->classes,
205			$this->interfaces,
206			$this->traits
207			] as $source) {
208			if (isset($source[$name]) && file_exists($source[$name])) {
209			return $source[$name];
210			}
211			}
212			return null;
213			}
214
215			/**
216			* Returns a map of lowercased class names to file paths.
217			*
218			* @return array
219			*/
220			public function getClasses()
221			{
222			return $this->classes;
223			}
224
225			/**
226			* Returns a lowercase array of all the class names in the manifest.
227			*
228			* @return array
229			*/
230			public function getClassNames()
231			{
232			return array_keys($this->classes);
233			}
234
235			/**
236			* Returns a lowercase array of all trait names in the manifest
237			*
238			* @return array
239			*/
240			public function getTraitNames()
241			{
242			return array_keys($this->traits);
243			}
244
245			/**
246			* Returns an array of all the descendant data.
247			*
248			* @return array
249			*/
250			public function getDescendants()
251			{
252			return $this->descendants;
253			}
254
255			/**
256			* Returns an array containing all the descendants (direct and indirect)
257			* of a class.
258			*
259			* @param string\|object $class
260			* @return array
261			*/
262			public function getDescendantsOf($class)
263			{
264			if (is_object($class)) {
265			$class = get_class($class);
266			}
267
268			$lClass = strtolower($class);
269
270			if (array_key_exists($lClass, $this->descendants)) {
271			return $this->descendants[$lClass];
272			} else {
273			return array();
274			}
275			}
276
277			/**
278			* Returns a map of lowercased interface names to file locations.
279			*
280			* @return array
281			*/
282			public function getInterfaces()
283			{
284			return $this->interfaces;
285			}
286
287			/**
288			* Returns a map of lowercased interface names to the classes the implement
289			* them.
290			*
291			* @return array
292			*/
293			public function getImplementors()
294			{
295			return $this->implementors;
296			}
297
298			/**
299			* Returns an array containing the class names that implement a certain
300			* interface.
301			*
302			* @param string $interface
303			* @return array
304			*/
305			public function getImplementorsOf($interface)
306			{
307			$interface = strtolower($interface);
308
309			if (array_key_exists($interface, $this->implementors)) {
310			return $this->implementors[$interface];
311			} else {
312			return array();
313			}
314			}
315
316			/**
317			* Get module that owns this class
318			*
319			* @param string $class Class name
320			* @return Module
321			*/
322			public function getOwnerModule($class)
323			{
324			$path = realpath($this->getItemPath($class));
325			if (!$path) {
326			return null;
327			}
328
329			/** @var Module $rootModule */
330			$rootModule = null;
331
332			// Find based on loaded modules
333			$modules = ModuleLoader::instance()->getManifest()->getModules();
334			foreach ($modules as $module) {
335			// Leave root module as fallback
336			if (empty($module->getRelativePath())) {
337			$rootModule = $module;
338			} elseif (stripos($path, realpath($module->getPath())) === 0) {
339			return $module;
340			}
341			}
342
343			// Fall back to top level module
344			return $rootModule;
345			}
346
347			/**
348			* Completely regenerates the manifest file.
349			*/
350			public function regenerate()
351			{
352			$resets = array(
353			'classes', 'roots', 'children', 'descendants', 'interfaces',
354			'implementors', 'traits'
355			);
356
357			// Reset the manifest so stale info doesn't cause errors.
358			foreach ($resets as $reset) {
359			$this->$reset = array();
360			}
361
362			$finder = new ManifestFileFinder();
363			$finder->setOptions(array(
364			'name_regex' => '/^[^_].*\\.php$/',
365			'ignore_files' => array('index.php', 'main.php', 'cli-script.php'),
366			'ignore_tests' => !$this->tests,
367			'file_callback' => array($this, 'handleFile'),
368			));
369			$finder->find($this->base);
370
371			foreach ($this->roots as $root) {
372			$this->coalesceDescendants($root);
373			}
374
375			if ($this->cache) {
376			$data = array(
377			'classes' => $this->classes,
378			'descendants' => $this->descendants,
379			'interfaces' => $this->interfaces,
380			'implementors' => $this->implementors,
381			'traits' => $this->traits,
382			);
383			$this->cache->set($this->cacheKey, $data);
384			}
385			}
386
387			public function handleFile($basename, $pathname)
388			{
389			$classes = null;
390			$interfaces = null;
391			$traits = null;
392
393			// The results of individual file parses are cached, since only a few
394			// files will have changed and TokenisedRegularExpression is quite
395			// slow. A combination of the file name and file contents hash are used,
396			// since just using the datetime lead to problems with upgrading.
397			$key = preg_replace('/[^a-zA-Z0-9_]/', '_', $basename) . '_' . md5_file($pathname);
398
399			// Attempt to load from cache
400			if ($this->cache
401			&& ($data = $this->cache->get($key))
402			&& $this->validateItemCache($data)
403			) {
404			$classes = $data['classes'];
405			$interfaces = $data['interfaces'];
406			$traits = $data['traits'];
407			} else {
408			// Build from php file parser
409			$fileContents = ClassContentRemover::remove_class_content($pathname);
410			try {
411			$stmts = $this->getParser()->parse($fileContents);
412			} catch (Error $e) {
413			// if our mangled contents breaks, try again with the proper file contents
414			$stmts = $this->getParser()->parse(file_get_contents($pathname));
415			}
416			$this->getTraverser()->traverse($stmts);
			0 ignored issues – show Bug introduced 2017-02-14 17:10 UTC by Report Bug Copy Issue Report It seems like `$stmts` can also be of type `null`; however, `PhpParser\NodeTraverser::traverse()` does only seem to accept `array<integer,object<PhpParser\Node>>`, maybe add an additional type check? If a method or function can return multiple different values and unless you are sure that you only can receive a single value in this context, we recommend to add an additional type check: /** * @return array\|string */ function returnsDifferentValues($x) { if ($x) { return 'foo'; } return array(); } $x = returnsDifferentValues($y); if (is_array($x)) { // $x is an array. } If this a common case that PHP Analyzer should handle natively, please let us know by opening an issue. Loading history...
417
418			$classes = $this->getVisitor()->getClasses();
419			$interfaces = $this->getVisitor()->getInterfaces();
420			$traits = $this->getVisitor()->getTraits();
421
422			// Save back to cache if configured
423			if ($this->cache) {
424			$cache = array(
425			'classes' => $classes,
426			'interfaces' => $interfaces,
427			'traits' => $traits,
428			);
429			$this->cache->set($key, $cache);
430			}
431			}
432
433			// Merge this data into the global list
434			foreach ($classes as $className => $classInfo) {
435			$extends = isset($classInfo['extends']) ? $classInfo['extends'] : null;
436			$implements = isset($classInfo['interfaces']) ? $classInfo['interfaces'] : null;
437
438			$lowercaseName = strtolower($className);
439			if (array_key_exists($lowercaseName, $this->classes)) {
440			throw new Exception(sprintf(
441			'There are two files containing the "%s" class: "%s" and "%s"',
442			$className,
443			$this->classes[$lowercaseName],
444			$pathname
445			));
446			}
447
448			$this->classes[$lowercaseName] = $pathname;
449
450			if ($extends) {
451			foreach ($extends as $ancestor) {
452			$ancestor = strtolower($ancestor);
453
454			if (!isset($this->children[$ancestor])) {
455			$this->children[$ancestor] = array($className);
456			} else {
457			$this->children[$ancestor][] = $className;
458			}
459			}
460			} else {
461			$this->roots[] = $className;
462			}
463
464			if ($implements) {
465			foreach ($implements as $interface) {
466			$interface = strtolower($interface);
467
468			if (!isset($this->implementors[$interface])) {
469			$this->implementors[$interface] = array($className);
470			} else {
471			$this->implementors[$interface][] = $className;
472			}
473			}
474			}
475			}
476
477			foreach ($interfaces as $interfaceName => $interfaceInfo) {
478			$this->interfaces[strtolower($interfaceName)] = $pathname;
479			}
480			foreach ($traits as $traitName => $traitInfo) {
481			$this->traits[strtolower($traitName)] = $pathname;
482			}
483			}
484
485			/**
486			* Recursively coalesces direct child information into full descendant
487			* information.
488			*
489			* @param string $class
490			* @return array
491			*/
492			protected function coalesceDescendants($class)
493			{
494			$lClass = strtolower($class);
495
496			if (array_key_exists($lClass, $this->children)) {
497			$this->descendants[$lClass] = array();
498
499			foreach ($this->children[$lClass] as $class) {
500			$this->descendants[$lClass] = array_merge(
501			$this->descendants[$lClass],
502			array($class),
503			$this->coalesceDescendants($class)
504			);
505			}
506
507			return $this->descendants[$lClass];
508			} else {
509			return array();
510			}
511			}
512
513			/**
514			* Verify that cached data is valid for a single item
515			*
516			* @param array $data
517			* @return bool
518			*/
519			protected function validateItemCache($data)
520			{
521			foreach (['classes', 'interfaces', 'traits'] as $key) {
522			// Must be set
523			if (!isset($data[$key])) {
524			return false;
525			}
526			// and an array
527			if (!is_array($data[$key])) {
528			return false;
529			}
530			// Detect legacy cache keys (non-associative)
531			$array = $data[$key];
532			if (!empty($array) && is_numeric(key($array))) {
533			return false;
534			}
535			}
536			return true;
537			}
538			}
539

silverstripe / silverstripe-framework

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ClassManifest::validateItemCache() B

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