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How to use closure class

Best Atoum code snippet using closure

SerializableClosure.php

Source:SerializableClosure.php

1<?php namespace SuperClosure;2use Closure;3use SuperClosure\Exception\ClosureUnserializationException;4/**5 * This class acts as a wrapper for a closure, and allows it to be serialized.6 *7 * With the combined power of the Reflection API, code parsing, and the infamous8 * `eval()` function, you can serialize a closure, unserialize it somewhere9 * else (even a different PHP process), and execute it.10 */11class SerializableClosure implements \Serializable12{13    /**14     * The closure being wrapped for serialization.15     *16     * @var Closure17     */18    private $closure;19    /**20     * The serializer doing the serialization work.21     *22     * @var SerializerInterface23     */24    private $serializer;25    /**26     * The data from unserialization.27     *28     * @var array29     */30    private $data;31    /**32     * Create a new serializable closure instance.33     *34     * @param Closure                  $closure35     * @param SerializerInterface|null $serializer36     */37    public function __construct(38        \Closure $closure,39        SerializerInterface $serializer = null40    ) {41        $this->closure = $closure;42        $this->serializer = $serializer ?: new Serializer;43    }44    /**45     * Return the original closure object.46     *47     * @return Closure48     */49    public function getClosure()50    {51        return $this->closure;52    }53    /**54     * Delegates the closure invocation to the actual closure object.55     *56     * Important Notes:57     *58     * - `ReflectionFunction::invokeArgs()` should not be used here, because it59     *   does not work with closure bindings.60     * - Args passed-by-reference lose their references when proxied through61     *   `__invoke()`. This is an unfortunate, but understandable, limitation62     *   of PHP that will probably never change.63     *64     * @return mixed65     */66    public function __invoke()67    {68        return call_user_func_array($this->closure, func_get_args());69    }70    /**71     * Clones the SerializableClosure with a new bound object and class scope.72     *73     * The method is essentially a wrapped proxy to the Closure::bindTo method.74     *75     * @param mixed $newthis  The object to which the closure should be bound,76     *                        or NULL for the closure to be unbound.77     * @param mixed $newscope The class scope to which the closure is to be78     *                        associated, or 'static' to keep the current one.79     *                        If an object is given, the type of the object will80     *                        be used instead. This determines the visibility of81     *                        protected and private methods of the bound object.82     *83     * @return SerializableClosure84     * @link http://www.php.net/manual/en/closure.bindto.php85     */86    public function bindTo($newthis, $newscope = 'static')87    {88        return new self(89            $this->closure->bindTo($newthis, $newscope),90            $this->serializer91        );92    }93    /**94     * Serializes the code, context, and binding of the closure.95     *96     * @return string|null97     * @link http://php.net/manual/en/serializable.serialize.php98     */99    public function serialize()100    {101        try {102            $this->data = $this->data ?: $this->serializer->getData($this->closure, true);103            return serialize($this->data);104        } catch (\Exception $e) {105            trigger_error(106                'Serialization of closure failed: ' . $e->getMessage(),107                E_USER_NOTICE108            );109            // Note: The serialize() method of Serializable must return a string110            // or null and cannot throw exceptions.111            return null;112        }113    }114    /**115     * Unserializes the closure.116     *117     * Unserializes the closure's data and recreates the closure using a118     * simulation of its original context. The used variables (context) are119     * extracted into a fresh scope prior to redefining the closure. The120     * closure is also rebound to its former object and scope.121     *122     * @param string $serialized123     *124     * @throws ClosureUnserializationException125     * @link http://php.net/manual/en/serializable.unserialize.php126     */127    public function unserialize($serialized)128    {129        // Unserialize the closure data and reconstruct the closure object.130        $this->data = unserialize($serialized);131        $this->closure = __reconstruct_closure($this->data);132        // Throw an exception if the closure could not be reconstructed.133        if (!$this->closure instanceof Closure) {134            throw new ClosureUnserializationException(135                'The closure is corrupted and cannot be unserialized.'136            );137        }138        // Rebind the closure to its former binding and scope.139        if ($this->data['binding'] || $this->data['isStatic']) {140            $this->closure = $this->closure->bindTo(141                $this->data['binding'],142                $this->data['scope']143            );144        }145    }146    /**147     * Returns closure data for `var_dump()`.148     *149     * @return array150     */151    public function __debugInfo()152    {153        return $this->data ?: $this->serializer->getData($this->closure, true);154    }155}156/**157 * Reconstruct a closure.158 *159 * HERE BE DRAGONS!160 *161 * The infamous `eval()` is used in this method, along with the error162 * suppression operator, and variable variables (i.e., double dollar signs) to163 * perform the unserialization logic. I'm sorry, world!164 *165 * This is also done inside a plain function instead of a method so that the166 * binding and scope of the closure are null.167 *168 * @param array $__data Unserialized closure data.169 *170 * @return Closure|null171 * @internal172 */173function __reconstruct_closure(array $__data)174{175    // Simulate the original context the closure was created in.176    foreach ($__data['context'] as $__var_name => &$__value) {177        if ($__value instanceof SerializableClosure) {178            // Unbox any SerializableClosures in the context.179            $__value = $__value->getClosure();180        } elseif ($__value === Serializer::RECURSION) {181            // Track recursive references (there should only be one).182            $__recursive_reference = $__var_name;183        }184        // Import the variable into this scope.185        ${$__var_name} = $__value;186    }187    // Evaluate the code to recreate the closure.188    try {189        if (isset($__recursive_reference)) {190            // Special handling for recursive closures.191            @eval("\${$__recursive_reference} = {$__data['code']};");192            $__closure = ${$__recursive_reference};193        } else {194            @eval("\$__closure = {$__data['code']};");195        }196    } catch (\ParseError $e) {197        // Discard the parse error.198    }199    return isset($__closure) ? $__closure : null;200}...

ClosureParserTest.php

Source:ClosureParserTest.php

...8     * @covers \Jeremeamia\SuperClosure\ClosureParser::getReflection9     */10    public function testCanGetReflectionBackFromParser()11    {12        $closure = function () {};13        $reflection = new \ReflectionFunction($closure);14        $parser = new ClosureParser($reflection);15        $this->assertSame($reflection, $parser->getReflection());16    }17    /**18     * @covers \Jeremeamia\SuperClosure\ClosureParser::fromClosure19     */20    public function testCanUseFactoryMethodToCreateParser()21    {22        $parser = ClosureParser::fromClosure(function () {});23        $this->assertInstanceOf('Jeremeamia\SuperClosure\ClosureParser', $parser);24    }25    /**26     * @covers \Jeremeamia\SuperClosure\ClosureParser::__construct27     */28    public function testRaisesErrorWhenNonClosureIsProvided()29    {30        $this->setExpectedException('InvalidArgumentException');31        $reflection = new \ReflectionFunction('strpos');32        $parser = new ClosureParser($reflection);33    }34    /**35     * @covers \Jeremeamia\SuperClosure\ClosureParser::getCode36     */37    public function testCanGetCodeFromParser()38    {39        $closure = function () {};40        $expectedCode = "function () {\n    \n};";41        $parser = new ClosureParser(new \ReflectionFunction($closure));42        $actualCode = $parser->getCode();43        $this->assertEquals($expectedCode, $actualCode);44    }45    /**46     * @covers \Jeremeamia\SuperClosure\ClosureParser::getUsedVariables47     */48    public function testCanGetUsedVariablesFromParser()49    {50        $foo = 1;51        $bar = 2;52        $closure = function () use ($foo, $bar) {};53        $expectedVars = array('foo' => 1, 'bar' => 2);54        $parser = new ClosureParser(new \ReflectionFunction($closure));55        $actualVars = $parser->getUsedVariables();56        $this->assertEquals($expectedVars, $actualVars);57    }58    /**59     * @covers \Jeremeamia\SuperClosure\ClosureParser::getUsedVariables60     */61    public function testCanGetUsedVariablesWhenOneIsNullFromParser()62    {63        $foo = null;64        $bar = 2;65        $closure = function () use ($foo, $bar) {};66        $expectedVars = array('foo' => null, 'bar' => 2);67        $parser = new ClosureParser(new \ReflectionFunction($closure));68        $actualVars = $parser->getUsedVariables();69        $this->assertEquals($expectedVars, $actualVars);70    }71    /**72     * @covers \Jeremeamia\SuperClosure\ClosureParser::clearCache73     */74    public function testCanClearCache()75    {76        $parserClass = 'Jeremeamia\SuperClosure\ClosureParser';77        $p = new \ReflectionProperty($parserClass, 'cache');78        $p->setAccessible(true);79        $p->setValue(null, array('foo' => 'bar'));80        $this->assertEquals(array('foo' => 'bar'), $this->readAttribute($parserClass, 'cache'));81        ClosureParser::clearCache();82        $this->assertEquals(array(), $this->readAttribute($parserClass, 'cache'));83    }84    /**85     * @covers \Jeremeamia\SuperClosure\ClosureParser::getClosureAbstractSyntaxTree86     * @covers \Jeremeamia\SuperClosure\ClosureParser::getFileAbstractSyntaxTree87     */88    public function testCanGetClosureAst()89    {90        $closure = function () {};91        $parser = new ClosureParser(new \ReflectionFunction($closure));92        $ast = $parser->getClosureAbstractSyntaxTree();93        $this->assertInstanceOf('PHPParser_Node_Expr_Closure', $ast);94    }95}...

closure

Using AI Code Generation

1use mageekguy\atoum;2use mageekguy\atoum\php;3use mageekguy\atoum\php\method;4use mageekguy\atoum\php\method\parameter;5use mageekguy\atoum\php\method\parameters;6use mageekguy\atoum\php\method\parameters\parameter as parametersParameter;7use mageekguy\atoum\php\method\parameters\container as parametersContainer;8use mageekguy\atoum\php\method\exception;9use mageekguy\atoum\php\method\exceptions;10use mageekguy\atoum\php\method\exceptions\exception as exceptionsException;11use mageekguy\atoum\php\method\exceptions\container as exceptionsContainer;12use mageekguy\atoum\php\method\visibility;13use mageekguy\atoum\php\method\abstract as abstractMethod;14use mageekguy\atoum\php\method\final as finalMethod;15use mageekguy\atoum\php\method\static as staticMethod;16use mageekguy\atoum\php\method\body;17use mageekguy\atoum\php\method\default as defaultMethod;18use mageekguy\atoum\php\method\name;19use mageekguy\atoum\php\method\name as methodName;20use mageekguy\atoum\php\method\value;21use mageekguy\atoum\php\method\values;22use mageekguy\atoum\php\method\values\value as valuesValue;23use mageekguy\atoum\php\method\values\container as valuesContainer;24use mageekguy\atoum\php\method\tag;25use mageekguy\atoum\php\method\tags;26use mageekguy\atoum\php\method\tags\tag as tagsTag;27use mageekguy\atoum\php\method\tags\container as tagsContainer;28use mageekguy\atoum\php\method\comment;

closure

Using AI Code Generation

1use atoum\closure as atoum;2use PHPUnit\closure as PHPUnit;3use atoum\closure as atoum;4use PHPUnit\closure as PHPUnit;5use atoum\closure as atoum;6use PHPUnit\closure as PHPUnit;7use atoum\closure as atoum;8use PHPUnit\closure as PHPUnit;9use atoum\closure as atoum;10use PHPUnit\closure as PHPUnit;11use atoum\closure as atoum;12use PHPUnit\closure as PHPUnit;13use atoum\closure as atoum;14use PHPUnit\closure as PHPUnit;15use atoum\closure as atoum;16use PHPUnit\closure as PHPUnit;17use atoum\closure as atoum;18use PHPUnit\closure as PHPUnit;19use atoum\closure as atoum;20use PHPUnit\closure as PHPUnit;21use atoum\closure as atoum;22use PHPUnit\closure as PHPUnit;

closure

Using AI Code Generation

1$atoum = new atoum\atoum();2$atoum->run();3$atoum = new atoum\atoum();4$atoum->run();5$atoum = new atoum\atoum();6$atoum->run();7$atoum = new atoum\atoum();8$atoum->run();9$atoum = new atoum\atoum();10$atoum->run();11$atoum = new atoum\atoum();12$atoum->run();13$atoum = new atoum\atoum();14$atoum->run();15$atoum = new atoum\atoum();16$atoum->run();17$atoum = new atoum\atoum();18$atoum->run();19$atoum = new atoum\atoum();20$atoum->run();21$atoum = new atoum\atoum();22$atoum->run();23$atoum = new atoum\atoum();24$atoum->run();25$atoum = new atoum\atoum();26$atoum->run();

closure

Using AI Code Generation

1use Atoum\Test;2use Atoum\Test\Asserters\Variable as VariableAsserter;3$asserter = new VariableAsserter('foo');4$asserter->isEqualTo('foo');5use Atoum\Test;6use Atoum\Test\Asserters\Variable as VariableAsserter;7$asserter = new VariableAsserter('foo');8$asserter->isEqualTo('foo');

closure

Using AI Code Generation

1$test = new Atoum\Test();2$test->setTestNamespace('My\Project\Test');3$test->setTestedClassName('My\Project\Class');4$test = new Atoum\Test();5$test->setTestNamespace('My\Project\Test');6$test->setTestedClassName('My\Project\Class');7$test = new Atoum\Test();8$test->setTestNamespace('My\Project\Test');9$test->setTestedClassName('My\Project\Class');10$test = new Atoum\Test();11$test->setTestNamespace('My\Project\Test');12$test->setTestedClassName('My\Project\Class');13$test = new Atoum\Test();14$test->setTestNamespace('My\Project\Test');15$test->setTestedClassName('My\Project\Class');16$test = new Atoum\Test();17$test->setTestNamespace('My\Project\Test');18$test->setTestedClassName('My\Project\Class');19$test = new Atoum\Test();20$test->setTestNamespace('My\Project\Test');21$test->setTestedClassName('My\Project\Class');22$test = new Atoum\Test();23$test->setTestNamespace('My\Project\Test');24$test->setTestedClassName('My\Project\Class');25$test = new Atoum\Test();26$test->setTestNamespace('My\Project\Test');27$test->setTestedClassName('My\Project\Class');28$test = new Atoum\Test();

closure

Using AI Code Generation

1$test->setBootstrapFile(__DIR__ . '/vendor/autoload.php');2$test->setTestNamespace('tests\units');3$test->addTestDirectory(__DIR__ . '/tests/units');4$test->run();5$test->setBootstrapFile(__DIR__ . '/vendor/autoload.php');6$test->setTestNamespace('tests\units');7$test->addTestDirectory(__DIR__ . '/tests/units');8$test->run();9$test->setBootstrapFile(__DIR__ . '/vendor/autoload.php');10$test->setTestNamespace('tests\units');11$test->addTestDirectory(__DIR__ . '/tests/units');12$test->run();13$test->setBootstrapFile(__DIR__ . '/vendor/autoload.php');14$test->setTestNamespace('tests\units');15$test->addTestDirectory(__DIR__ . '/tests/units');16$test->run();17$test->setBootstrapFile(__DIR__ . '/vendor/autoload.php');18$test->setTestNamespace('tests\units');19$test->addTestDirectory(__DIR__ . '/tests/units');20$test->run();21$test->setBootstrapFile(__DIR__ . '/vendor/autoload.php');22$test->setTestNamespace('tests\units');23$test->addTestDirectory(__DIR__ . '/tests/units');24$test->run();25$test->setBootstrapFile(__DIR__ . '/vendor/autoload.php');26$test->setTestNamespace('tests\units');27$test->addTestDirectory(__DIR__ . '/tests/units');28$test->run();29$test->setBootstrapFile(__DIR__ . '/vendor/autoload.php');30$test->setTestNamespace('tests\units');31$test->addTestDirectory(__DIR__ . '/tests/units');32$test->run();

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