MethodMatcher.php

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<?php
namespace Elgg;

class MethodMatcher {

    private $type;

    private $method;

    public function __construct($type, $method) {
        $this->type = strtolower(ltrim($type, '\\'));
        $this->method = strtolower($method);
    }

    public function matches($subject) {
        // We don't use the callable type-hint because it unnecessarily autoloads for static methods.

        if (is_string($subject)) {
            if (false === strpos($subject, '::')) {
                return false;
            }

            $subject = explode('::', $subject, 2);
        }

        if (!is_array($subject) || empty($subject[0]) || empty($subject[1]) || !is_string($subject[1])) {
            return false;
        }

        if (strtolower($subject[1]) !== $this->method) {
            return false;
        }

        if (is_object($subject[0])) {
            $subject[0] = get_class($subject[0]);
        }

        if (!is_string($subject[0])) {
            return false;
        }

        return (strtolower(ltrim($subject[0], '\\')) === $this->type);
    }


}