[LayaAir1]关于layaUI.max.all.js导出代码为ES6语法的问题。

刚接触laya，碰到了一个老项目，我发现原项目导出的layaUI.max.all.js中的代码是用class和es6语法来声明类。类似下面这样。

class ClassName extends SuperClass {

    constructor() { 

        super();

    }

    createChildren() {

        super.createChildren();

        this.createView(ClassName.uiView);

    }

}

ClassName.uiView = {

    "type": "Dialog",

    "props": {"width": WidthValue, "height": HeightValue},

    "child": [

        {"type": "Sprite", "props": {"y": YValue, "x": XValue, "var": "VarName", "alpha": AlphaValue}, "child": [

            {"type": "Rect", "props": {"y": YValue, "x": XValue, "width": WidthValue, "lineWidth": LineWidthValue, "height": HeightValue, "fillColor": "FillColor"}}

        ]},

        {"type": "Sprite", "props": {"y": YValue, "x": XValue, "width": WidthValue, "var": "VarName", "height": HeightValue}, "child": [

            {"type": "Image", "props": {"width": WidthValue, "skin": "SkinPath", "name": "Name", "height": HeightValue}},

            // ... 

        ]}

    ]

};

deepReplaceUrl(ClassName.uiView);

REG("ui.ClassName", ClassName);

而我创建了新的UI组件后，导出的时候代码格式就变成了使用传统的函数式原型继承模式，类似下面这样

var ClassName = (function(_super) {

    function ClassName() {

        this.VarName1 = null;

        this.VarName2 = null;

        // ... 

        ClassName.__super.call(this);

    }

    CLASS$(ClassName, 'ui.ClassName', _super);

    var __proto__ = ClassName.prototype;

    __proto__.createChildren = function() {

        View.regComponent("ComponentName", ComponentClass);

        laya.ui.Component.prototype.createChildren.call(this);

        this.createView(ClassName.uiView);

    }

    ClassName.uiView = {

        "type": "Dialog",

        "props": {"width": WidthValue, "height": HeightValue},

        "child": [

            {"type": "Sprite", "props": {"y": YValue, "x": XValue, "var": "VarName", "alpha": AlphaValue}, "child": [

                {"type": "Rect", "props": {"y": YValue, "x": XValue, "width": WidthValue, "lineWidth": LineWidthValue, "height": HeightValue, "fillColor": "FillColor"}}

            ]},

            {"type": "Sprite", "props": {"y": YValue, "x": XValue, "width": WidthValue, "var": "VarName", "height": HeightValue}, "child": [

                {"type": "Image", "props": {"width": WidthValue, "skin": "SkinPath", "name": "Name", "height": HeightValue}},

                // ... 

            ]}

        ]

    };

    return ClassName;

})(Dialog);