yvan-ext/src/lib/lib.ts

import _ from 'lodash'
import {FunctionRegiste} from "../types";
import {Scope} from "../Scope";

export const LibList: FunctionRegiste[] = []

export function Lib(registe: FunctionRegiste) {
    return function (target, propertyKey: string, descriptor: PropertyDescriptor) {
        LibList.push({
            ...registe,
            name: propertyKey,
            target: target[propertyKey]
        })

        if (registe.type === 'system') {
            _.set(window, 'yvanLib.system.' + propertyKey, target[propertyKey])

        } else if (registe.type === 'format') {
            _.set(window, 'yvanLib.format.' + propertyKey, target[propertyKey])
        }

        return target
    }
}

/**
 * 解析事件
 *   'scope.私有方法名'
 *   'system.系统函数名'
 *   'format.格式化名'
 */
export function lookupFn(scope: Scope, event: string): Function {
    if (window["IS_DESIGN_MODE"]) {
        return Ext.emptyFn
    }
    // 为 eval 准备环境
    const {system, format} = window['yvanLib']
    const func: Function = eval(event)

    if (typeof func !== 'function') {
        console.error('无法识别的事件响应类型', event, func)
        throw new TypeError('无法识别的事件响应类型')
    }

    return func
}

/**
 * 从 ext.element 获取 scope 对象
 */
export function lookupScope(extHandle: any): Scope {
    const vm = extHandle.lookupViewModel()
    return vm.yvanScope
}