Facade.php
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<?php
// +----------------------------------------------------------------------
// | ThinkPHP [ WE CAN DO IT JUST THINK ]
// +----------------------------------------------------------------------
// | Copyright (c) 2006~2018 http://thinkphp.cn All rights reserved.
// +----------------------------------------------------------------------
// | Licensed ( http://www.apache.org/licenses/LICENSE-2.0 )
// +----------------------------------------------------------------------
// | Author: liu21st <liu21st@gmail.com>
// +----------------------------------------------------------------------
namespace think;
class Facade
{
/**
* 绑定对象
* @var array
*/
protected static $bind = [];
/**
* 始终创建新的对象实例
* @var bool
*/
protected static $alwaysNewInstance;
/**
* 绑定类的静态代理
* @static
* @access public
* @param string|array $name 类标识
* @param string $class 类名
* @return object
*/
public static function bind($name, $class = null)
{
if (__CLASS__ != static::class) {
return self::__callStatic('bind', func_get_args());
}
if (is_array($name)) {
self::$bind = array_merge(self::$bind, $name);
} else {
self::$bind[$name] = $class;
}
}
/**
* 创建Facade实例
* @static
* @access protected
* @param string $class 类名或标识
* @param array $args 变量
* @param bool $newInstance 是否每次创建新的实例
* @return object
*/
protected static function createFacade($class = '', $args = [], $newInstance = false)
{
$class = $class ?: static::class;
$facadeClass = static::getFacadeClass();
if ($facadeClass) {
$class = $facadeClass;
} elseif (isset(self::$bind[$class])) {
$class = self::$bind[$class];
}
if (static::$alwaysNewInstance) {
$newInstance = true;
}
return Container::getInstance()->make($class, $args, $newInstance);
}
/**
* 获取当前Facade对应类名(或者已经绑定的容器对象标识)
* @access protected
* @return string
*/
protected static function getFacadeClass()
{}
/**
* 带参数实例化当前Facade类
* @access public
* @return mixed
*/
public static function instance(...$args)
{
if (__CLASS__ != static::class) {
return self::createFacade('', $args);
}
}
/**
* 调用类的实例
* @access public
* @param string $class 类名或者标识
* @param array|true $args 变量
* @param bool $newInstance 是否每次创建新的实例
* @return mixed
*/
public static function make($class, $args = [], $newInstance = false)
{
if (__CLASS__ != static::class) {
return self::__callStatic('make', func_get_args());
}
if (true === $args) {
// 总是创建新的实例化对象
$newInstance = true;
$args = [];
}
return self::createFacade($class, $args, $newInstance);
}
// 调用实际类的方法
public static function __callStatic($method, $params)
{
return call_user_func_array([static::createFacade(), $method], $params);
}
}