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Просмотр файла: StableTokenWrapper.js
"use strict";
var __extends = (this && this.__extends) || (function () {
var extendStatics = function (d, b) {
extendStatics = Object.setPrototypeOf ||
({ __proto__: [] } instanceof Array && function (d, b) { d.__proto__ = b; }) ||
function (d, b) { for (var p in b) if (Object.prototype.hasOwnProperty.call(b, p)) d[p] = b[p]; };
return extendStatics(d, b);
};
return function (d, b) {
if (typeof b !== "function" && b !== null)
throw new TypeError("Class extends value " + String(b) + " is not a constructor or null");
extendStatics(d, b);
function __() { this.constructor = d; }
d.prototype = b === null ? Object.create(b) : (__.prototype = b.prototype, new __());
};
})();
var __assign = (this && this.__assign) || function () {
__assign = Object.assign || function(t) {
for (var s, i = 1, n = arguments.length; i < n; i++) {
s = arguments[i];
for (var p in s) if (Object.prototype.hasOwnProperty.call(s, p))
t[p] = s[p];
}
return t;
};
return __assign.apply(this, arguments);
};
var __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, generator) {
function adopt(value) { return value instanceof P ? value : new P(function (resolve) { resolve(value); }); }
return new (P || (P = Promise))(function (resolve, reject) {
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) {
var _ = { label: 0, sent: function() { if (t[0] & 1) throw t[1]; return t[1]; }, trys: [], ops: [] }, f, y, t, g;
return g = { next: verb(0), "throw": verb(1), "return": verb(2) }, typeof Symbol === "function" && (g[Symbol.iterator] = function() { return this; }), g;
function verb(n) { return function (v) { return step([n, v]); }; }
function step(op) {
if (f) throw new TypeError("Generator is already executing.");
while (_) try {
if (f = 1, y && (t = op[0] & 2 ? y["return"] : op[0] ? y["throw"] || ((t = y["return"]) && t.call(y), 0) : y.next) && !(t = t.call(y, op[1])).done) return t;
if (y = 0, t) op = [op[0] & 2, t.value];
switch (op[0]) {
case 0: case 1: t = op; break;
case 4: _.label++; return { value: op[1], done: false };
case 5: _.label++; y = op[1]; op = [0]; continue;
case 7: op = _.ops.pop(); _.trys.pop(); continue;
default:
if (!(t = _.trys, t = t.length > 0 && t[t.length - 1]) && (op[0] === 6 || op[0] === 2)) { _ = 0; continue; }
if (op[0] === 3 && (!t || (op[1] > t[0] && op[1] < t[3]))) { _.label = op[1]; break; }
if (op[0] === 6 && _.label < t[1]) { _.label = t[1]; t = op; break; }
if (t && _.label < t[2]) { _.label = t[2]; _.ops.push(op); break; }
if (t[2]) _.ops.pop();
_.trys.pop(); continue;
}
op = body.call(thisArg, _);
} catch (e) { op = [6, e]; y = 0; } finally { f = t = 0; }
if (op[0] & 5) throw op[1]; return { value: op[0] ? op[1] : void 0, done: true };
}
};
Object.defineProperty(exports, "__esModule", { value: true });
exports.StableTokenWrapper = void 0;
var fixidity_1 = require("@celo/utils/lib/fixidity");
var BaseWrapper_1 = require("./BaseWrapper");
var CeloTokenWrapper_1 = require("./CeloTokenWrapper");
/**
* Stable token with variable supply
*/
var StableTokenWrapper = /** @class */ (function (_super) {
__extends(StableTokenWrapper, _super);
function StableTokenWrapper() {
var _this = _super !== null && _super.apply(this, arguments) || this;
/**
* Returns the address of the owner of the contract.
* @return the address of the owner of the contract.
*/
_this.owner = (0, BaseWrapper_1.proxyCall)(_this.contract.methods.owner);
/**
* Returns the units for a given value given the current inflation factor.
* @param value The value to convert to units.
* @return The units corresponding to `value` given the current inflation factor.
* @dev We don't compute the updated inflationFactor here because
* we assume any function calling this will have updated the inflation factor.
*/
_this.valueToUnits = (0, BaseWrapper_1.proxyCall)(_this.contract.methods.valueToUnits, (0, BaseWrapper_1.tupleParser)(BaseWrapper_1.valueToString), BaseWrapper_1.valueToBigNumber);
/**
* Returns the value of a given number of units given the current inflation factor.
* @param units The units to convert to value.
* @return The value corresponding to `units` given the current inflation factor.
*/
_this.unitsToValue = (0, BaseWrapper_1.proxyCall)(_this.contract.methods.unitsToValue, (0, BaseWrapper_1.tupleParser)(BaseWrapper_1.valueToString), BaseWrapper_1.valueToBigNumber);
/**
* Increases the allowance of another user.
* @param spender The address which is being approved to spend StableToken.
* @param value The increment of the amount of StableToken approved to the spender.
* @returns true if success.
*/
_this.increaseAllowance = (0, BaseWrapper_1.proxySend)(_this.connection, _this.contract.methods.increaseAllowance, (0, BaseWrapper_1.tupleParser)(BaseWrapper_1.stringIdentity, BaseWrapper_1.valueToString));
/**
* Decreases the allowance of another user.
* @param spender The address which is being approved to spend StableToken.
* @param value The decrement of the amount of StableToken approved to the spender.
* @returns true if success.
*/
_this.decreaseAllowance = (0, BaseWrapper_1.proxySend)(_this.connection, _this.contract.methods.decreaseAllowance);
_this.mint = (0, BaseWrapper_1.proxySend)(_this.connection, _this.contract.methods.mint);
_this.burn = (0, BaseWrapper_1.proxySend)(_this.connection, _this.contract.methods.burn);
_this.setInflationParameters = (0, BaseWrapper_1.proxySend)(_this.connection, _this.contract.methods.setInflationParameters);
return _this;
}
/**
* Querying the inflation parameters.
* @returns Inflation rate, inflation factor, inflation update period and the last time factor was updated.
*/
StableTokenWrapper.prototype.getInflationParameters = function () {
return __awaiter(this, void 0, void 0, function () {
var res;
return __generator(this, function (_a) {
switch (_a.label) {
case 0: return [4 /*yield*/, this.contract.methods.getInflationParameters().call()];
case 1:
res = _a.sent();
return [2 /*return*/, {
rate: (0, fixidity_1.fromFixed)((0, BaseWrapper_1.valueToBigNumber)(res[0])),
factor: (0, fixidity_1.fromFixed)((0, BaseWrapper_1.valueToBigNumber)(res[1])),
updatePeriod: (0, BaseWrapper_1.valueToBigNumber)(res[2]),
factorLastUpdated: (0, BaseWrapper_1.valueToBigNumber)(res[3]),
}];
}
});
});
};
/**
* Returns current configuration parameters.
*/
StableTokenWrapper.prototype.getConfig = function () {
return __awaiter(this, void 0, void 0, function () {
var res;
return __generator(this, function (_a) {
switch (_a.label) {
case 0: return [4 /*yield*/, Promise.all([
this.name(),
this.symbol(),
this.decimals(),
this.getInflationParameters(),
])];
case 1:
res = _a.sent();
return [2 /*return*/, {
name: res[0],
symbol: res[1],
decimals: res[2],
inflationParameters: res[3],
}];
}
});
});
};
/**
* @dev Returns human readable configuration of the stabletoken contract
* @return StableTokenConfig object
*/
StableTokenWrapper.prototype.getHumanReadableConfig = function () {
return __awaiter(this, void 0, void 0, function () {
var config, inflationParameters;
return __generator(this, function (_a) {
switch (_a.label) {
case 0: return [4 /*yield*/, this.getConfig()];
case 1:
config = _a.sent();
inflationParameters = __assign(__assign({}, config.inflationParameters), { updatePeriod: (0, BaseWrapper_1.secondsToDurationString)(config.inflationParameters.updatePeriod), factorLastUpdated: (0, BaseWrapper_1.unixSecondsTimestampToDateString)(config.inflationParameters.factorLastUpdated) });
return [2 /*return*/, __assign(__assign({}, config), { inflationParameters: inflationParameters })];
}
});
});
};
return StableTokenWrapper;
}(CeloTokenWrapper_1.CeloTokenWrapper));
exports.StableTokenWrapper = StableTokenWrapper;
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