cic-client
Version:
Typescript libraries for building CIC client applications
109 lines (108 loc) • 5.88 kB
JavaScript
;
var __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, generator) {
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function fulfilled(value) { try { step(generator.next(value)); } catch (e) { reject(e); } }
function rejected(value) { try { step(generator["throw"](value)); } catch (e) { reject(e); } }
function step(result) { result.done ? resolve(result.value) : adopt(result.value).then(fulfilled, rejected); }
step((generator = generator.apply(thisArg, _arguments || [])).next());
});
};
var __generator = (this && this.__generator) || function (thisArg, body) {
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function verb(n) { return function (v) { return step([n, v]); }; }
function step(op) {
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}
};
exports.__esModule = true;
exports.Conversion = void 0;
var tx_1 = require("../common/tx");
var topic_convert = '0x7154b38b5dd31bb3122436a96d4e09aba5b323ae1fd580025fab55074334c095';
/**
* Instance represents a single conversion event on network.
*
* @class Conversion
*/
var Conversion = /** @class */ (function () {
/**
*
* @param tx Ethereum transaction
* @param sourceToken ERC20 token sent in conversion
* @param destinationToken ERC20 token received from conversion
* @param trader Ethereum address performing the conversion (sender and recipient)
* @param fromValue Source token value of conversion
* @param toValue Destination token value of conversion
*/
function Conversion(tx, sourceToken, destinationToken, trader, fromValue, toValue) {
this.sourceToken = sourceToken;
this.destinationToken = destinationToken;
this.trader = trader;
this.fromValue = fromValue;
this.toValue = toValue;
this.tx = tx;
}
/**
* Scans a transaction log for transfer event.
*
* @static
* @param w3 A connected Web3 object
* @param registry Registry context of conversion
* @param success State of transaction
* @param log A Web3 transaction receipt logs array
* @return conversion Instance of Conversion if conversion is found, undefined if not.
*/
Conversion.processLog = function (w3, registry, success, log) {
return __awaiter(this, void 0, void 0, function () {
var conversion, block, sourceToken_address, sourceToken, destinationToken_address, destinationToken, fromValue, toValue, trader, tx;
return __generator(this, function (_a) {
switch (_a.label) {
case 0:
conversion = undefined;
if (!(log.topics[0] == topic_convert)) return [3 /*break*/, 4];
return [4 /*yield*/, w3.eth.getBlock(log.blockNumber)];
case 1:
block = _a.sent();
sourceToken_address = w3.utils.toChecksumAddress('0x' + log.topics[1].substring(26, 66));
return [4 /*yield*/, registry.getToken(sourceToken_address)];
case 2:
sourceToken = _a.sent();
destinationToken_address = w3.utils.toChecksumAddress('0x' + log.topics[2].substring(26, 66));
return [4 /*yield*/, registry.getToken(destinationToken_address)];
case 3:
destinationToken = _a.sent();
fromValue = BigInt(log.data.substring(0, 66));
toValue = BigInt(log.data.substring(0, 66));
trader = w3.utils.toChecksumAddress('0x' + log.data.substring(154));
tx = new tx_1.Tx(log.blockNumber, log.transactionIndex, log.transactionHash, block.timestamp, success);
conversion = new Conversion(tx, sourceToken, destinationToken, trader, fromValue, toValue);
console.log('convert', conversion);
_a.label = 4;
case 4: return [2 /*return*/, conversion];
}
});
});
};
return Conversion;
}());
exports.Conversion = Conversion;