<?php

namespace alveolata\cache;

// require_once(DIR_ALVEOLATA . '/definitions.php');


/**
 * @author Christian Fraß <frass@greenscale.de>
 */
class struct_subject_memory {
	
	/**
	 * @author Christian Fraß <frass@greenscale.de>
	 */
	public $data;
	
	
	/**
	 * @author Christian Fraß <frass@greenscale.de>
	 */
	public function __construct(
	)
	{
		$this->data = [];
	}
	
}


/**
 * @author Christian Fraß <frass@greenscale.de>
 * @return struct_subject_memory
 */
function memory_make(
) : struct_subject_memory
{
	return (new struct_subject_memory());
}


/**
 * @param struct_subject_memory $subject
 * @param string $id
 * @param mixed $value
 * @author Christian Fraß <frass@greenscale.de>
 */
function memory_set(
	struct_subject_memory $subject,
	string $id,
	$value
) : void
{
	$subject->data[$id] = $value;
}


/**
 * @param struct_subject_memory $subject
 * @param string $id
 * @return bool
 * @author Christian Fraß <frass@greenscale.de>
 */
function memory_has(
	struct_subject_memory $subject,
	string $id
) : bool
{
	return array_key_exists($id, $subject->data);
}


/**
 * @param struct_subject_memory $subject
 * @param string $id
 * @return mixed
 * @author Christian Fraß <frass@greenscale.de>
 */
function memory_fetch(
	struct_subject_memory $subject,
	string $id
)
{
	return $subject->data[$id];
}


/**
 * @param struct_subject_memory $subject
 * @author Christian Fraß <frass@greenscale.de>
 */
function memory_clear(
	struct_subject_memory $subject
) : void
{
	$subject->data = [];
}