ts-deserializable/ds-attributes.js

Decorator pattern for deserializing unverified data to an instance of a class in typescript.

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
require("reflect-metadata");
const ATTRIBUTES_KEY = 'deserializable:attributes';
var DsAttributes;
(function (DsAttributes) {
    function get(target) {
        const attributes = Reflect.getMetadata(ATTRIBUTES_KEY, target);
        if (attributes) {
            return Object.keys(attributes)
                .reduce((copy, key) => {
                copy[key] = Object.assign({}, attributes[key]);
                return copy;
            }, {});
        }
    }
    DsAttributes.get = get;
    function set(target, attributes) {
        Reflect.defineMetadata(ATTRIBUTES_KEY, Object.assign({}, attributes), target);
    }
    DsAttributes.set = set;
    function add(target, key, type, fallback) {
        let attributes = get(target) || {};
        attributes[key] = {
            type: type,
            fallback: fallback,
        };
        set(target, attributes);
    }
    DsAttributes.add = add;
})(DsAttributes = exports.DsAttributes || (exports.DsAttributes = {}));