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<?php
namespace Illuminate\Support;
use ArrayAccess;
use ArrayObject;
use Illuminate\Support\Traits\Macroable;
class Optional implements ArrayAccess
{
use Macroable {
__call as macroCall;
}
/**
* The underlying object.
*
* @var mixed
*/
protected $value;
/**
* Create a new optional instance.
*
* @param mixed $value
* @return void
*/
public function __construct($value)
{
$this->value = $value;
}
/**
* Dynamically access a property on the underlying object.
*
* @param string $key
* @return mixed
*/
public function __get($key)
{
if (is_object($this->value)) {
return $this->value->{$key} ?? null;
}
}
/**
* Dynamically check a property exists on the underlying object.
*
* @param mixed $name
* @return bool
*/
public function __isset($name)
{
if (is_object($this->value)) {
return isset($this->value->{$name});
}
if (is_array($this->value) || $this->value instanceof ArrayObject) {
return isset($this->value[$name]);
}
return false;
}
/**
* Determine if an item exists at an offset.
*
* @param mixed $key
* @return bool
*/
public function offsetExists($key)
{
return Arr::accessible($this->value) && Arr::exists($this->value, $key);
}
/**
* Get an item at a given offset.
*
* @param mixed $key
* @return mixed
*/
public function offsetGet($key)
{
return Arr::get($this->value, $key);
}
/**
* Set the item at a given offset.
*
* @param mixed $key
* @param mixed $value
* @return void
*/
public function offsetSet($key, $value)
{
if (Arr::accessible($this->value)) {
$this->value[$key] = $value;
}
}
/**
* Unset the item at a given offset.
*
* @param string $key
* @return void
*/
public function offsetUnset($key)
{
if (Arr::accessible($this->value)) {
unset($this->value[$key]);
}
}
/**
* Dynamically pass a method to the underlying object.
*
* @param string $method
* @param array $parameters
* @return mixed
*/
public function __call($method, $parameters)
{
if (static::hasMacro($method)) {
return $this->macroCall($method, $parameters);
}
if (is_object($this->value)) {
return $this->value->{$method}(...$parameters);
}
}
}