thinkphp/library/think/route/RuleItem.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\route;

use think\Container;
use think\Exception;
use think\Route;

class RuleItem extends Rule
{
    protected $hasSetRule;

    /**
     * 架构函数
     * @access public
     * @param  Route             $router 路由实例
     * @param  RuleGroup         $parent 上级对象
     * @param  string            $name 路由标识
     * @param  string|array      $rule 路由规则
     * @param  string|\Closure   $route 路由地址
     * @param  string            $method 请求类型
     * @param  array             $option 路由参数
     * @param  array             $pattern 变量规则
     */
    public function __construct(Route $router, RuleGroup $parent, $name, $rule, $route, $method = '*', $option = [], $pattern = [])
    {
        $this->router  = $router;
        $this->parent  = $parent;
        $this->name    = $name;
        $this->route   = $route;
        $this->method  = $method;
        $this->option  = $option;
        $this->pattern = $pattern;

        $this->setRule($rule);

        if (!empty($option['cross_domain'])) {
            $this->router->setCrossDomainRule($this, $method);
        }
    }

    /**
     * 路由规则预处理
     * @access public
     * @param  string      $rule     路由规则
     * @return void
     */
    public function setRule($rule)
    {
        if ('$' == substr($rule, -1, 1)) {
            // 是否完整匹配