zkcloudworker
Version:
zkCloudWorker library
52 lines • 1.67 kB
JavaScript
import { Field, Struct, Encoding, Provable } from "o1js";
/**
* Represents the off-chain storage information,
* such as an IPFS hash.
*/
export class Storage extends Struct({
url: Provable.Array(Field, 2),
}) {
constructor(value) {
super(value);
}
/**
* Asserts that two Storage instances are equal.
* @param a The first Storage instance.
* @param b The second Storage instance.
*/
static assertEquals(a, b) {
a.url[0].assertEquals(b.url[0]);
a.url[1].assertEquals(b.url[1]);
}
/**
* Checks if two Storage instances are equal.
* @param a The first Storage instance.
* @param b The second Storage instance.
* @returns A Bool indicating whether the two instances are equal.
*/
static equals(a, b) {
return a.url[0].equals(b.url[0]).and(a.url[1].equals(b.url[1]));
}
/**
* Creates a Storage instance from a string.
* @param url The string representing the storage URL.
* @returns A new Storage instance.
*/
static fromString(url) {
const fields = Encoding.stringToFields(url);
if (fields.length !== 2)
throw new Error("Invalid string length");
return new Storage({ url: [fields[0], fields[1]] });
}
/**
* Converts the Storage instance to a string.
* @returns The string representation of the storage URL.
*/
toString() {
if (this.url[0].toBigInt() === 0n && this.url[1].toBigInt() === 0n) {
throw new Error("Invalid string");
}
return Encoding.stringFromFields([this.url[0], this.url[1]]);
}
}
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