ngx-decorate/CdrProp.js

Useful decorators for Angular 2 and above

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
/**
 * Call .markForCheck() on the change detector ref whenever this property is written to.
 *
 * @param propName Property at which the change detector can be found
 * @param conf Optional configuration
 */
function CdrProp(propName, conf = {}) {
    return (target, key) => {
        const sym = Symbol(`value:${key.toString()}`);
        const defaultDescriptor = {
            configurable: true,
            enumerable: true
        };
        Object.defineProperties(target, {
            [sym]: {
                configurable: false,
                enumerable: false,
                value: conf.default || target[key],
                writable: true
            },
            [key]: Object.assign(defaultDescriptor, conf.desc || {}, {
                get() {
                    return this[sym];
                },
                set(v) {
                    this[sym] = v;
                    if (!conf.destroyed || !this[conf.destroyed]) {
                        this[propName].markForCheck();
                    }
                }
            })
        });
    };
}
exports.CdrProp = CdrProp;
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