laya-coreui-es/build/es/layaAir/laya/webgl/shader/BaseShader.js

laya核心库、ui库es版本，剔除了媒体、TTF等功能。基于 LayaAir-release_2.12.0 修改

import { Resource } from "../../resource/Resource";
export class BaseShader extends Resource {
    constructor() {
        super();
    }
}