ripple-binary-codec
Version:
XRP Ledger binary codec
102 lines • 3.5 kB
JavaScript
;
Object.defineProperty(exports, "__esModule", { value: true });
exports.XChainBridge = void 0;
const binary_parser_1 = require("../serdes/binary-parser");
const account_id_1 = require("./account-id");
const serialized_type_1 = require("./serialized-type");
const issue_1 = require("./issue");
const utils_1 = require("@xrplf/isomorphic/utils");
/**
* Type guard for XChainBridgeObject
*/
function isXChainBridgeObject(arg) {
const keys = Object.keys(arg).sort();
return (keys.length === 4 &&
keys[0] === 'IssuingChainDoor' &&
keys[1] === 'IssuingChainIssue' &&
keys[2] === 'LockingChainDoor' &&
keys[3] === 'LockingChainIssue');
}
/**
* Class for serializing/deserializing XChainBridges
*/
class XChainBridge extends serialized_type_1.SerializedType {
constructor(bytes) {
super(bytes !== null && bytes !== void 0 ? bytes : XChainBridge.ZERO_XCHAIN_BRIDGE.bytes);
}
/**
* Construct a cross-chain bridge from a JSON
*
* @param value XChainBridge or JSON to parse into an XChainBridge
* @returns An XChainBridge object
*/
static from(value) {
if (value instanceof XChainBridge) {
return value;
}
if (!isXChainBridgeObject(value)) {
throw new Error('Invalid type to construct an XChainBridge');
}
const bytes = [];
this.TYPE_ORDER.forEach((item) => {
const { name, type } = item;
if (type === account_id_1.AccountID) {
bytes.push(Uint8Array.from([0x14]));
}
const object = type.from(value[name]);
bytes.push(object.toBytes());
});
return new XChainBridge((0, utils_1.concat)(bytes));
}
/**
* Read an XChainBridge from a BinaryParser
*
* @param parser BinaryParser to read the XChainBridge from
* @returns An XChainBridge object
*/
static fromParser(parser) {
const bytes = [];
this.TYPE_ORDER.forEach((item) => {
const { type } = item;
if (type === account_id_1.AccountID) {
parser.skip(1);
bytes.push(Uint8Array.from([0x14]));
}
const object = type.fromParser(parser);
bytes.push(object.toBytes());
});
return new XChainBridge((0, utils_1.concat)(bytes));
}
/**
* Get the JSON representation of this XChainBridge
*
* @returns the JSON interpretation of this.bytes
*/
toJSON() {
const parser = new binary_parser_1.BinaryParser(this.toString());
const json = {};
XChainBridge.TYPE_ORDER.forEach((item) => {
const { name, type } = item;
if (type === account_id_1.AccountID) {
parser.skip(1);
}
const object = type.fromParser(parser).toJSON();
json[name] = object;
});
return json;
}
}
exports.XChainBridge = XChainBridge;
XChainBridge.ZERO_XCHAIN_BRIDGE = new XChainBridge((0, utils_1.concat)([
Uint8Array.from([0x14]),
new Uint8Array(40),
Uint8Array.from([0x14]),
new Uint8Array(40),
]));
XChainBridge.TYPE_ORDER = [
{ name: 'LockingChainDoor', type: account_id_1.AccountID },
{ name: 'LockingChainIssue', type: issue_1.Issue },
{ name: 'IssuingChainDoor', type: account_id_1.AccountID },
{ name: 'IssuingChainIssue', type: issue_1.Issue },
];
//# sourceMappingURL=xchain-bridge.js.map