ethers.js/src.ts/utils/properties.ts
2018-07-03 16:44:05 -04:00

51 lines
1.3 KiB
TypeScript

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