typescript-class-helpers/lib/describe-class.js

Usefull helper to have in your typescript project

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.describeFromClassStringify = describeFromClassStringify;
exports.describeByDefaultModelsAndMapping = describeByDefaultModelsAndMapping;
const lib_1 = require("tnp-core/lib");
const symbols_1 = require("./symbols");
/**
  * @DEPRECATED
  * Describe fields assigned in class
  */
const FRegEx = new RegExp(/(?:this\.)(.+?(?= ))/g);
function describeFromClassStringify(target, parent = false) {
    // @ts-ignore
    var result = [];
    if (parent) {
        var proto = Object.getPrototypeOf(target.prototype);
        if (proto) {
            // @ts-ignore
            result = result.concat(describeFromClassStringify(proto.constructor, parent));
        }
    }
    const classString = target.toString();
    const matches = classString.match(FRegEx) || [];
    // console.log({
    //   classString,
    // });
    result = result.concat(matches);
    return result.map(prop => prop
        .replace('this.', '')
        .replace('.', '')
        .replace(')', '')
        .replace('(', ''));
}
/**
   * Describe fields assigne through @DefaultModelWithMapping decorator
   * without functions
   */
function describeByDefaultModelsAndMapping(target) {
    let res = {};
    if (target) {
        // @ts-ignore
        if (target[symbols_1.SYMBOL.DEFAULT_MODEL]) {
            // @ts-ignore
            Object.keys(target[symbols_1.SYMBOL.DEFAULT_MODEL])
                .filter(key => {
                // @ts-ignore
                return !lib_1._.isFunction(target[symbols_1.SYMBOL.DEFAULT_MODEL][key]);
            })
                .forEach(key => {
                // @ts-ignore
                return res[key] = null;
            });
        }
        // @ts-ignore
        let mapping = target[symbols_1.SYMBOL.MODELS_MAPPING];
        if (lib_1._.isArray(mapping)) {
            mapping.forEach(m => {
                Object.keys(m)
                    .forEach(key => {
                    // @ts-ignore
                    res[key] = null;
                });
            });
        }
        else if (mapping) {
            Object.keys(mapping)
                .forEach(key => {
                // @ts-ignore
                res[key] = null;
            });
        }
    }
    let propNames = Object.keys(res).filter(f => !!f);
    propNames = (!propNames.includes('id') ? ['id'] : []).concat(propNames);
    return propNames;
}
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