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Просмотр файла: LockedGold.js
"use strict";
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};
Object.defineProperty(exports, "__esModule", { value: true });
exports.LockedGoldWrapper = void 0;
var collections_1 = require("@celo/base/lib/collections");
var bignumber_js_1 = __importDefault(require("bignumber.js"));
var BaseWrapper_1 = require("../wrappers/BaseWrapper");
var BaseWrapperForGoverning_1 = require("./BaseWrapperForGoverning");
var bigNumberComparator = function (a, b) { return a.lt(b); };
function linkedListChanges(groups, changed) {
return (0, collections_1.linkedListChanges)(groups, changed, bigNumberComparator);
}
/**
* Contract for handling deposits needed for voting.
*/
var LockedGoldWrapper = /** @class */ (function (_super) {
__extends(LockedGoldWrapper, _super);
function LockedGoldWrapper() {
var _this = _super !== null && _super.apply(this, arguments) || this;
/**
* Withdraws a gold that has been unlocked after the unlocking period has passed.
* @param index The index of the pending withdrawal to withdraw.
*/
_this.withdraw = (0, BaseWrapper_1.proxySend)(_this.connection, _this.contract.methods.withdraw);
/**
* Locks gold to be used for voting.
* The gold to be locked, must be specified as the `tx.value`
*/
_this.lock = (0, BaseWrapper_1.proxySend)(_this.connection, _this.contract.methods.lock);
/**
* Unlocks gold that becomes withdrawable after the unlocking period.
* @param value The amount of gold to unlock.
*/
_this.unlock = (0, BaseWrapper_1.proxySend)(_this.connection, _this.contract.methods.unlock, (0, BaseWrapper_1.tupleParser)(BaseWrapper_1.valueToString));
/**
* Relocks gold that has been unlocked but not withdrawn.
* @param index The index of the pending withdrawal to relock from.
* @param value The value to relock from the specified pending withdrawal.
*/
_this._relock = (0, BaseWrapper_1.proxySend)(_this.connection, _this.contract.methods.relock, (0, BaseWrapper_1.tupleParser)(BaseWrapper_1.valueToString, BaseWrapper_1.valueToString));
/**
* Returns the total amount of locked gold for an account.
* @param account The account.
* @return The total amount of locked gold for an account.
*/
_this.getAccountTotalLockedGold = (0, BaseWrapper_1.proxyCall)(_this.contract.methods.getAccountTotalLockedGold, undefined, BaseWrapper_1.valueToBigNumber);
/**
* Returns the total amount of locked gold in the system. Note that this does not include
* gold that has been unlocked but not yet withdrawn.
* @returns The total amount of locked gold in the system.
*/
_this.getTotalLockedGold = (0, BaseWrapper_1.proxyCall)(_this.contract.methods.getTotalLockedGold, undefined, BaseWrapper_1.valueToBigNumber);
/**
* Returns the total amount of non-voting locked gold for an account.
* @param account The account.
* @return The total amount of non-voting locked gold for an account.
*/
_this.getAccountNonvotingLockedGold = (0, BaseWrapper_1.proxyCall)(_this.contract.methods.getAccountNonvotingLockedGold, undefined, BaseWrapper_1.valueToBigNumber);
return _this;
}
LockedGoldWrapper.prototype.getPendingWithdrawalsTotalValue = function (account) {
return __awaiter(this, void 0, void 0, function () {
var pendingWithdrawals, values, reducer;
return __generator(this, function (_a) {
switch (_a.label) {
case 0: return [4 /*yield*/, this.getPendingWithdrawals(account)
// Ensure there are enough pending withdrawals to relock.
];
case 1:
pendingWithdrawals = _a.sent();
values = pendingWithdrawals.map(function (pw) { return pw.value; });
reducer = function (total, pw) { return pw.plus(total); };
return [2 /*return*/, values.reduce(reducer, new bignumber_js_1.default(0))];
}
});
});
};
/**
* Relocks gold that has been unlocked but not withdrawn.
* @param value The value to relock from pending withdrawals.
*/
LockedGoldWrapper.prototype.relock = function (account, value) {
return __awaiter(this, void 0, void 0, function () {
var pendingWithdrawals, totalValue, throwIfNotSorted, remainingToRelock, relockPw;
var _this = this;
return __generator(this, function (_a) {
switch (_a.label) {
case 0: return [4 /*yield*/, this.getPendingWithdrawals(account)
// Ensure there are enough pending withdrawals to relock.
];
case 1:
pendingWithdrawals = _a.sent();
return [4 /*yield*/, this.getPendingWithdrawalsTotalValue(account)];
case 2:
totalValue = _a.sent();
if (totalValue.isLessThan(value)) {
throw new Error("Not enough pending withdrawals to relock ".concat(value));
}
throwIfNotSorted = function (pw, i) {
if (i > 0 && !pw.time.isGreaterThanOrEqualTo(pendingWithdrawals[i - 1].time)) {
throw new Error('Pending withdrawals not sorted by timestamp');
}
};
pendingWithdrawals.forEach(throwIfNotSorted);
remainingToRelock = new bignumber_js_1.default(value);
relockPw = function (acc, pw, i) {
var valueToRelock = bignumber_js_1.default.minimum(pw.value, remainingToRelock);
if (!valueToRelock.isZero()) {
remainingToRelock = remainingToRelock.minus(valueToRelock);
acc.push(_this._relock(i, valueToRelock));
}
return acc;
};
return [2 /*return*/, pendingWithdrawals.reduceRight(relockPw, [])];
}
});
});
};
/**
* Returns current configuration parameters.
*/
LockedGoldWrapper.prototype.getConfig = function () {
return __awaiter(this, void 0, void 0, function () {
var _a;
var _b;
return __generator(this, function (_c) {
switch (_c.label) {
case 0:
_b = {};
_a = BaseWrapper_1.valueToBigNumber;
return [4 /*yield*/, this.contract.methods.unlockingPeriod().call()];
case 1:
_b.unlockingPeriod = _a.apply(void 0, [_c.sent()]);
return [4 /*yield*/, this.getTotalLockedGold()];
case 2: return [2 /*return*/, (_b.totalLockedGold = _c.sent(),
_b)];
}
});
});
};
/**
* @dev Returns human readable configuration of the lockedgold contract
* @return LockedGoldConfig object
*/
LockedGoldWrapper.prototype.getHumanReadableConfig = function () {
return __awaiter(this, void 0, void 0, function () {
var config;
return __generator(this, function (_a) {
switch (_a.label) {
case 0: return [4 /*yield*/, this.getConfig()];
case 1:
config = _a.sent();
return [2 /*return*/, __assign(__assign({}, config), { unlockingPeriod: (0, BaseWrapper_1.secondsToDurationString)(config.unlockingPeriod) })];
}
});
});
};
LockedGoldWrapper.prototype.getAccountSummary = function (account) {
return __awaiter(this, void 0, void 0, function () {
var nonvoting, total, validators, requirement, pendingWithdrawals;
return __generator(this, function (_a) {
switch (_a.label) {
case 0: return [4 /*yield*/, this.getAccountNonvotingLockedGold(account)];
case 1:
nonvoting = _a.sent();
return [4 /*yield*/, this.getAccountTotalLockedGold(account)];
case 2:
total = _a.sent();
return [4 /*yield*/, this.contracts.getValidators()];
case 3:
validators = _a.sent();
return [4 /*yield*/, validators.getAccountLockedGoldRequirement(account)];
case 4:
requirement = _a.sent();
return [4 /*yield*/, this.getPendingWithdrawals(account)];
case 5:
pendingWithdrawals = _a.sent();
return [2 /*return*/, {
lockedGold: {
total: total,
nonvoting: nonvoting,
requirement: requirement,
},
pendingWithdrawals: pendingWithdrawals,
}];
}
});
});
};
/**
* Returns the pending withdrawals from unlocked gold for an account.
* @param account The address of the account.
* @return The value and timestamp for each pending withdrawal.
*/
LockedGoldWrapper.prototype.getPendingWithdrawals = function (account) {
return __awaiter(this, void 0, void 0, function () {
var withdrawals;
return __generator(this, function (_a) {
switch (_a.label) {
case 0: return [4 /*yield*/, this.contract.methods.getPendingWithdrawals(account).call()];
case 1:
withdrawals = _a.sent();
return [2 /*return*/, (0, collections_1.zip)(function (time, value) { return ({
time: (0, BaseWrapper_1.valueToBigNumber)(time),
value: (0, BaseWrapper_1.valueToBigNumber)(value),
}); }, withdrawals[1], withdrawals[0])];
}
});
});
};
/**
* Retrieves AccountSlashed for epochNumber.
* @param epochNumber The epoch to retrieve AccountSlashed at.
*/
LockedGoldWrapper.prototype.getAccountsSlashed = function (epochNumber) {
return __awaiter(this, void 0, void 0, function () {
var blockchainParamsWrapper, events, _a, _b;
var _c;
return __generator(this, function (_d) {
switch (_d.label) {
case 0: return [4 /*yield*/, this.contracts.getBlockchainParameters()];
case 1:
blockchainParamsWrapper = _d.sent();
_a = this.getPastEvents;
_b = ['AccountSlashed'];
_c = {};
return [4 /*yield*/, blockchainParamsWrapper.getFirstBlockNumberForEpoch(epochNumber)];
case 2:
_c.fromBlock = _d.sent();
return [4 /*yield*/, blockchainParamsWrapper.getLastBlockNumberForEpoch(epochNumber)];
case 3: return [4 /*yield*/, _a.apply(this, _b.concat([(_c.toBlock = _d.sent(),
_c)]))];
case 4:
events = _d.sent();
return [2 /*return*/, events.map(function (e) { return ({
epochNumber: epochNumber,
slashed: e.returnValues.slashed,
penalty: (0, BaseWrapper_1.valueToBigNumber)(e.returnValues.penalty),
reporter: e.returnValues.reporter,
reward: (0, BaseWrapper_1.valueToBigNumber)(e.returnValues.reward),
}); })];
}
});
});
};
/**
* Computes parameters for slashing `penalty` from `account`.
* @param account The account to slash.
* @param penalty The amount to slash as penalty.
* @return List of (group, voting gold) to decrement from `account`.
*/
LockedGoldWrapper.prototype.computeInitialParametersForSlashing = function (account, penalty) {
return __awaiter(this, void 0, void 0, function () {
var election, eligible, groups;
return __generator(this, function (_a) {
switch (_a.label) {
case 0: return [4 /*yield*/, this.contracts.getElection()];
case 1:
election = _a.sent();
return [4 /*yield*/, election.getEligibleValidatorGroupsVotes()];
case 2:
eligible = _a.sent();
groups = eligible.map(function (x) { return ({ address: x.address, value: x.votes }); });
return [2 /*return*/, this.computeParametersForSlashing(account, penalty, groups)];
}
});
});
};
LockedGoldWrapper.prototype.computeParametersForSlashing = function (account, penalty, groups) {
return __awaiter(this, void 0, void 0, function () {
var changed, changes;
return __generator(this, function (_a) {
switch (_a.label) {
case 0: return [4 /*yield*/, this.computeDecrementsForSlashing(account, penalty, groups)];
case 1:
changed = _a.sent();
changes = linkedListChanges(groups, changed);
return [2 /*return*/, __assign(__assign({}, changes), { indices: changed.map(function (a) { return a.index; }) })];
}
});
});
};
// Returns how much voting gold will be decremented from the groups voted by an account
// Implementation follows protocol/test/common/integration slashingOfGroups()
LockedGoldWrapper.prototype.computeDecrementsForSlashing = function (account, penalty, allGroups) {
var _a;
return __awaiter(this, void 0, void 0, function () {
var nonVoting, difference, election, groups, res, _loop_1, i, state_1;
return __generator(this, function (_b) {
switch (_b.label) {
case 0: return [4 /*yield*/, this.getAccountNonvotingLockedGold(account)];
case 1:
nonVoting = _b.sent();
if (penalty.isLessThan(nonVoting)) {
return [2 /*return*/, []];
}
difference = penalty.minus(nonVoting);
return [4 /*yield*/, this.contracts.getElection()];
case 2:
election = _b.sent();
return [4 /*yield*/, election.getGroupsVotedForByAccount(account)];
case 3:
groups = _b.sent();
res = [];
_loop_1 = function (i) {
var group, totalVotes, votes, slashedVotes;
return __generator(this, function (_c) {
switch (_c.label) {
case 0:
group = groups[i];
totalVotes = (_a = allGroups.find(function (a) { return a.address === group; })) === null || _a === void 0 ? void 0 : _a.value;
if (!totalVotes) {
throw new Error("Cannot find group ".concat(group));
}
return [4 /*yield*/, election.getTotalVotesForGroupByAccount(group, account)];
case 1:
votes = _c.sent();
slashedVotes = votes.lt(difference) ? votes : difference;
res.push({ address: group, value: totalVotes.minus(slashedVotes), index: i });
difference = difference.minus(slashedVotes);
if (difference.eq(new bignumber_js_1.default(0))) {
return [2 /*return*/, "break"];
}
return [2 /*return*/];
}
});
};
i = groups.length - 1;
_b.label = 4;
case 4:
if (!(i >= 0)) return [3 /*break*/, 7];
return [5 /*yield**/, _loop_1(i)];
case 5:
state_1 = _b.sent();
if (state_1 === "break")
return [3 /*break*/, 7];
_b.label = 6;
case 6:
i--;
return [3 /*break*/, 4];
case 7: return [2 /*return*/, res];
}
});
});
};
return LockedGoldWrapper;
}(BaseWrapperForGoverning_1.BaseWrapperForGoverning));
exports.LockedGoldWrapper = LockedGoldWrapper;
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