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<?php

/**
 * Class MC4WP_Service_Container
 *
 * @access private
 * @ignore
 */
class MC4WP_Container implements ArrayAccess
{
    /**
     * @var array
     */
    protected $services = array();

/**
     * @var array
     */
    protected $resolved_services = array();

/**
     * @param string $name
     * @return boolean
     */
    public function has($name)
    {
        return isset($this->services[ $name ]);
    }

/**
     * @param string $name
     *
     * @return mixed
     * @throws Exception
     */
    public function get($name)
    {
        if (! $this->has($name)) {
            throw new Exception(sprintf('No service named %s was registered.', $name));
        }

$service = $this->services[ $name ];

// is this a resolvable service?
        if (is_callable($service)) {
            // resolve service if it's not resolved yet
            if (! isset($this->resolved_services[ $name ])) {
                $this->resolved_services[ $name ] = call_user_func($service);
            }

return $this->resolved_services[ $name ];
        }

return $this->services[ $name ];
    }

/**
 * (PHP 5 >= 5.0.0) 
 * Whether a offset exists
 * @link http://php.net/manual/en/arrayaccess.offsetexists.php
 *
 * @param mixed $offset 
 * An offset to check for.
 * 
 *
 * @return boolean true on success or false on failure.
 * 
 * 
 * The return value will be casted to boolean if non-boolean was returned.
 */
 #[\ReturnTypeWillChange]
 public function offsetExists($offset)
 {
 return $this->has($offset);
 }

/**
 * (PHP 5 >= 5.0.0) 
 * Offset to retrieve
 * @link http://php.net/manual/en/arrayaccess.offsetget.php
 *
 * @param mixed $offset 
 * The offset to retrieve.
 * 
 *
 * @return mixed Can return all value types.
 */
 #[\ReturnTypeWillChange]
 public function offsetGet($offset)
 {
 return $this->get($offset);
 }

/**
 * (PHP 5 >= 5.0.0) 
 * Offset to set
 * @link http://php.net/manual/en/arrayaccess.offsetset.php
 *
 * @param mixed $offset 
 * The offset to assign the value to.
 * 
 * @param mixed $value 
 * The value to set.
 * 
 *
 * @return void
 */
 #[\ReturnTypeWillChange]
 public function offsetSet($offset, $value)
 {
 $this->services[ $offset ] = $value;
 }

/**
 * (PHP 5 >= 5.0.0) 
 * Offset to unset
 * @link http://php.net/manual/en/arrayaccess.offsetunset.php
 *
 * @param mixed $offset 
 * The offset to unset.
 * 
 *
 * @return void
 */
 #[\ReturnTypeWillChange]
 public function offsetUnset($offset)
 {
 unset($this->services[ $offset ]);
 }
}