64 lines
1.5 KiB
TypeScript
64 lines
1.5 KiB
TypeScript
'use strict';
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export function defineReadOnly(object, name, value) {
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Object.defineProperty(object, name, {
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enumerable: true,
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value: value,
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writable: false,
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});
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}
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export function defineFrozen(object, name, value) {
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var frozen = JSON.stringify(value);
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Object.defineProperty(object, name, {
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enumerable: true,
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get: function() { return JSON.parse(frozen); }
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});
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}
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export type DeferredSetter = (value: any) => void;
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export function defineDeferredReadOnly(object, name, value): DeferredSetter {
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var _value = value;
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var setter = function(value: any): void {
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_value = value;
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}
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Object.defineProperty(object, name, {
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enumerable: true,
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get: function(): any { return _value; },
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set: setter
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});
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return setter;
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}
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export function resolveProperties(object: any) {
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let result: any = {};
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let promises: Array<Promise<any>> = [];
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Object.keys(object).forEach((key) => {
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let value = object[key];
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if (value instanceof Promise) {
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promises.push(
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value.then((value) => { result[key] = value; })
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);
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} else {
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result[key] = value;
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}
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});
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return Promise.all(promises).then(() => {
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return object;
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});
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}
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export function shallowCopy(object: any): any {
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let result = {};
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for (var key in object) { result[key] = object[key]; }
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return result;
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}
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export function jsonCopy(object: any): any {
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return JSON.parse(JSON.stringify(object));
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}
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