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<?php
/*
* This file is part of PhpSpec, A php toolset to drive emergent
* design by specification.
*
* (c) Marcello Duarte <marcello.duarte@gmail.com>
* (c) Konstantin Kudryashov <ever.zet@gmail.com>
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace PhpSpec\Wrapper\Subject;
use PhpSpec\Wrapper\Unwrapper;
use PhpSpec\Formatter\Presenter\PresenterInterface;
use PhpSpec\Exception\Wrapper\SubjectException;
use PhpSpec\Exception\Fracture\InterfaceNotImplementedException;
use Symfony\Component\EventDispatcher\EventDispatcherInterface;
class SubjectWithArrayAccess
{
/**
* @var Caller
*/
private $caller;
/**
* @var PresenterInterface
*/
private $presenter;
/**
* @var EventDispatcherInterface
*/
private $dispatcher;
/**
* @param Caller $caller
* @param PresenterInterface $presenter
* @param EventDispatcherInterface $dispatcher
*/
public function __construct(
Caller $caller,
PresenterInterface $presenter,
EventDispatcherInterface $dispatcher
) {
$this->caller = $caller;
$this->presenter = $presenter;
$this->dispatcher = $dispatcher;
}
/**
* @param string|integer $key
*
* @return bool
*/
public function offsetExists($key)
{
$unwrapper = new Unwrapper();
$subject = $this->caller->getWrappedObject();
$key = $unwrapper->unwrapOne($key);
$this->checkIfSubjectImplementsArrayAccess($subject);
return isset($subject[$key]);
}
/**
* @param string|integer $key
*
* @return mixed
*/
public function offsetGet($key)
{
$unwrapper = new Unwrapper();
$subject = $this->caller->getWrappedObject();
$key = $unwrapper->unwrapOne($key);
$this->checkIfSubjectImplementsArrayAccess($subject);
return $subject[$key];
}
/**
* @param string|integer $key
* @param mixed $value
*/
public function offsetSet($key, $value)
{
$unwrapper = new Unwrapper();
$subject = $this->caller->getWrappedObject();
$key = $unwrapper->unwrapOne($key);
$value = $unwrapper->unwrapOne($value);
$this->checkIfSubjectImplementsArrayAccess($subject);
$subject[$key] = $value;
}
/**
* @param string|integer $key
*/
public function offsetUnset($key)
{
$unwrapper = new Unwrapper();
$subject = $this->caller->getWrappedObject();
$key = $unwrapper->unwrapOne($key);
$this->checkIfSubjectImplementsArrayAccess($subject);
unset($subject[$key]);
}
/**
* @param mixed $subject
*
* @throws \PhpSpec\Exception\Wrapper\SubjectException
* @throws \PhpSpec\Exception\Fracture\InterfaceNotImplementedException
*/
private function checkIfSubjectImplementsArrayAccess($subject)
{
if (is_object($subject) && !($subject instanceof \ArrayAccess)) {
throw $this->interfaceNotImplemented();
} elseif (!($subject instanceof \ArrayAccess) && !is_array($subject)) {
throw $this->cantUseAsArray($subject);
}
}
/**
* @return InterfaceNotImplementedException
*/
private function interfaceNotImplemented()
{
return new InterfaceNotImplementedException(
sprintf(
'%s does not implement %s interface, but should.',
$this->presenter->presentValue($this->caller->getWrappedObject()),
$this->presenter->presentString('ArrayAccess')
),
$this->caller->getWrappedObject(),
'ArrayAccess'
);
}
/**
* @param mixed $subject
*
* @return SubjectException
*/
private function cantUseAsArray($subject)
{
return new SubjectException(sprintf(
'Can not use %s as array.',
$this->presenter->presentValue($subject)
));
}
}
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