Zephir\ClassDefinition::checkInterfaceImplements PHP Method

    public function checkInterfaceImplements(ClassDefinition $classDefinition, ClassDefinition $interfaceDefinition)
    {
        foreach ($interfaceDefinition->getMethods() as $method) {
            if (!$classDefinition->hasMethod($method->getName())) {
                throw new CompilerException("Class " . $classDefinition->getCompleteName() . " must implement a method called: \"" . $method->getName() . "\" as requirement of interface: \"" . $interfaceDefinition->getCompleteName() . "\"");
            }
            if ($method->hasParameters()) {
                $implementedMethod = $classDefinition->getMethod($method->getName());
                if ($implementedMethod->getNumberOfRequiredParameters() > $method->getNumberOfRequiredParameters() || $implementedMethod->getNumberOfParameters() < $method->getNumberOfParameters()) {
                    throw new CompilerException("Class " . $classDefinition->getCompleteName() . "::" . $method->getName() . "() does not have the same number of required parameters in interface: \"" . $interfaceDefinition->getCompleteName() . "\"");
                }
            }
        }
    }