inversify/es/annotation/injectable.js

A powerful and lightweight inversion of control container for JavaScript and Node.js apps powered by TypeScript.

import * as METADATA_KEY from "../constants/metadata_keys";
import * as ERRORS_MSGS from "../constants/error_msgs";
function injectable() {
    return function (target) {
        if (Reflect.hasOwnMetadata(METADATA_KEY.PARAM_TYPES, target) === true) {
            throw new Error(ERRORS_MSGS.DUPLICATED_INJECTABLE_DECORATOR);
        }
        var types = Reflect.getMetadata(METADATA_KEY.DESIGN_PARAM_TYPES, target) || [];
        Reflect.defineMetadata(METADATA_KEY.PARAM_TYPES, types, target);
        return target;
    };
}
export default injectable;