hm-react-cli/package-modules/anujs/packages/fiber/Refs.js

Create a Huimei React project by module

import { pushError } from './ErrorBoundary';
import { typeNumber } from 'react-core/util';

//fix 0.14对此方法的改动，之前refs里面保存的是虚拟DOM

function getDOMNode() {
    return this;
}

export let Refs = {
    // errorHook: string,//发生错误的生命周期钩子
    // errorInfo: [],    //已经构建好的错误信息
    // doctors: null     //医生节点
    // error: null       //第一个捕捉到的错误
    fireRef(fiber, dom) {
        let ref = fiber.ref;
        let owner = fiber._owner;
        try {
            let number = typeNumber(ref);
            refStrategy[number](owner, ref, dom);
            if (owner && owner.__isStateless ){
                delete fiber.ref;
                fiber.deleteRef = true;
            }
         
        } catch (e) {
            pushError(fiber, 'ref', e);
        }
    },
};

const refStrategy = {
    4: function(owner, ref, dom) {
        //string
        if (dom === null) {
            delete owner.refs[ref];
        } else {
            if (dom.nodeType) {
                dom.getDOMNode = getDOMNode;
            }
            owner.refs[ref] = dom;
        }
    },
    5: function(owner, ref, dom) {
        ref(dom);
    },
    8: function(owner, ref, dom) {
        ref.current = dom;
    },
};