@pandorajs/hub/build/src/object-proxying/IntrospectionUtils.js

pandora.js messenge hub

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.IntrospectionUtils = void 0;
const SKIP_NAMES = ['subscribe', 'unsubscribe'];
class IntrospectionUtils {
    /**
     * Introspect an Object, get the Definition of that Object
     * @param obj
     * @return {Introspection}
     */
    static introspect(obj) {
        const allNames = getAllNames(obj);
        const properties = [];
        const methods = [];
        for (const name of allNames) {
            if (IntrospectionUtils.namesOfObject.indexOf(name) > -1 ||
                SKIP_NAMES.indexOf(name) > -1) {
                continue;
            }
            if (typeof obj[name] === 'function') {
                methods.push({
                    name: name,
                    length: obj[name].length,
                    type: IntrospectionUtils.isGenerator(obj[name])
                        ? 'generator'
                        : 'function',
                });
            }
            else {
                properties.push({
                    name: name,
                    type: typeof obj[name],
                });
            }
        }
        return { properties, methods };
    }
    /**
     * decide a function is a generator function
     * @param fn
     * @return {boolean}
     */
    static isGenerator(fn) {
        return fn.constructor.name === 'GeneratorFunction';
    }
}
exports.IntrospectionUtils = IntrospectionUtils;
IntrospectionUtils.namesOfObject = getAllNames({});
function getAllNames(obj) {
    let props = [];
    do {
        props = props.concat(Object.getOwnPropertyNames(obj));
    } while ((obj = Object.getPrototypeOf(obj)));
    props = [...new Set(props)];
    return props;
}
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