Method init

packages/miniprogram-render/src/bom/miniprogram.js:31–73

* 初始化

(url)

     * 初始化
     */
    init(url) {
        if (typeof url === 'string') this.$_pageUrl = url // 设置真实 url
        const {
            origin, entry, router, runtime = {}
        } = cache.getConfig()
        const subpackagesMap = runtime.subpackagesMap || {}

        this.$_pageUrl = this.$_pageUrl || (origin + entry)
        this.$_subpackagesMap = subpackagesMap
        this.window.location.$$reset(this.$_pageUrl)
        this.window.history.$$reset()

        if (!pageUrlRouteMap) {
            // 需要初始化页面 url - 小程序页面路由映射表
            pageUrlRouteMap = {}

            Object.keys(router).forEach(pageName => {
                const regexpList = []

                router[pageName].forEach(pathObj => {
                    // 构造正则表达式
                    const regexp = new RegExp(pathObj.regexp, pathObj.options)
                    regexpList.push(regexp)
                })

                // 将每个页面的路由改造成函数，方便后续做匹配用
                pageUrlRouteMap[pageName] = pathname => {
                    for (const regexp of regexpList) {
                        const parseRes = regexp.exec(pathname)
                        regexp.lastIndex = 0

                        if (parseRes) {
                            // 匹配成功
                            const packageName = subpackagesMap[pageName]
                            return `/${packageName ? packageName + '/' : ''}pages/${pageName}/index`
                        }
                    }

                    return null
                }
            })
        }
    }

    /**
     * 需要匹配对应路由的 route