Go\Aop\Framework\StaticClosureMethodInvocation

Complexity

Total Complexity

8

Size/Duplication

Total Lines	86
Duplicated Lines	0 %

Coupling/Cohesion

Components	1
Dependencies	1

Test Coverage

Coverage

100%

Importance

Changes

0

5 Methods

Rating	Name	Duplication	Size	Complexity
A	proceed()	0	20	4
A	getStaticInvoker()	0	6	1
A	isDynamic()	0	4	1
A	getThis()	0	4	1
A	getScope()	0	5	1

<?php
declare(strict_types = 1);
/*
 * Go! AOP framework
 *
 * @copyright Copyright 2015, Lisachenko Alexander <lisachenko.it@gmail.com>
 *
 * This source file is subject to the license that is bundled
 * with this source code in the file LICENSE.
 */

namespace Go\Aop\Framework;

use Closure;

/**
 * Static closure method invocation is responsible to call static methods via closure
 */
final class StaticClosureMethodInvocation extends AbstractMethodInvocation
{
    /**
     * Closure to use
     *
     * @var Closure
     */
    protected $closureToCall;

    /**
     * Previous scope of invocation
     *
     * @var null|string
     */
    protected $previousScope;

    /**
     * For static calls we store given argument as 'scope' property
     */
    protected static $propertyName = 'scope';

    /**
     * Proceeds all registered advices for the static method and returns an invocation result
     */
    public function proceed()
    {
        if (isset($this->advices[$this->current])) {
            $currentInterceptor = $this->advices[$this->current++];

            return $currentInterceptor->invoke($this);
        }

        // Rebind the closure if scope (class name) was changed since last time
        if ($this->previousScope !== $this->scope) {
            if ($this->closureToCall === null) {
                $this->closureToCall = static::getStaticInvoker($this->reflectionMethod->class, $this->reflectionMethod->name);
            }
            $this->closureToCall = $this->closureToCall->bindTo(null, $this->scope);
            $this->previousScope = $this->scope;
        }

        return ($this->closureToCall)($this->arguments);

    }

    /**
     * Returns static method invoker for the concrete method in the class
     */
    protected static function getStaticInvoker(string $className, string $methodName): Closure
    {
        return function (array $args) use ($className, $methodName) {
            return forward_static_call_array([$className, $methodName], $args);
        };
    }

    /**
     * Checks if the current joinpoint is dynamic or static
     *
     * Dynamic joinpoint contains a reference to an object that can be received via getThis() method call
     *
     * @see ClassJoinpoint::getThis()
     */
    final public function isDynamic(): bool
    {
        return false;
    }

    /**
     * Returns the object for which current joinpoint is invoked
     *
     * @return object Instance of object or null for static call/unavailable context
     */
    final public function getThis(): ?object
    {
        return null;
    }

    /**
     * Returns the static scope name (class name) of this joinpoint.
     */
    final public function getScope(): string
    {
        // $this->scope contains the current class scope that was received via static::class
        return $this->scope;
    }
}