demo-tabledata-redis/src/web/src/modules/components/parameter/parameter_input/input/input.service.ts

import { inputTypes } from '../../parameter.typings';

const inputs: {
    [key: string]: any;
} = {};

export function input(key: inputTypes): ClassDecorator {
    return (target: object) => {
        inputs[key] = target;
    };
}

export function getInput(type: inputTypes): string {
    const inputWidget = inputs[type];
    if (BI.isNull(inputWidget)) {
        throw new TypeError();
    }

    return inputWidget.xtype;
}