@danielvindax/echainswap-sdk
Version:
🛠An SDK for building applications on top of Curve Swap.
1,359 lines (1,115 loc) • 86.7 kB
JavaScript
'use strict';
Object.defineProperty(exports, '__esModule', { value: true });
function _interopDefault (ex) { return (ex && (typeof ex === 'object') && 'default' in ex) ? ex['default'] : ex; }
var JSBI = _interopDefault(require('jsbi'));
var invariant = _interopDefault(require('tiny-invariant'));
var warning = _interopDefault(require('tiny-warning'));
var address = require('@ethersproject/address');
var _Big = _interopDefault(require('big.js'));
var toFormat = _interopDefault(require('toformat'));
var _Decimal = _interopDefault(require('decimal.js-light'));
var solidity = require('@ethersproject/solidity');
var contracts = require('@ethersproject/contracts');
var networks = require('@ethersproject/networks');
var providers = require('@ethersproject/providers');
var _FACTORY_ADDRESS_MAP, _INIT_CODE_HASH_MAP, _SOLIDITY_TYPE_MAXIMA;
(function (ChainId) {
ChainId[ChainId["MAINNET"] = 65450] = "MAINNET";
ChainId[ChainId["TESTNET"] = 6552] = "TESTNET";
})(exports.ChainId || (exports.ChainId = {}));
(function (TradeType) {
TradeType[TradeType["EXACT_INPUT"] = 0] = "EXACT_INPUT";
TradeType[TradeType["EXACT_OUTPUT"] = 1] = "EXACT_OUTPUT";
})(exports.TradeType || (exports.TradeType = {}));
(function (Rounding) {
Rounding[Rounding["ROUND_DOWN"] = 0] = "ROUND_DOWN";
Rounding[Rounding["ROUND_HALF_UP"] = 1] = "ROUND_HALF_UP";
Rounding[Rounding["ROUND_UP"] = 2] = "ROUND_UP";
})(exports.Rounding || (exports.Rounding = {}));
var FACTORY_ADDRESS = '0xAbF484C483a14Ecac58236348a00b5AB88aeF17C';
var FACTORY_ADDRESS_MAP = (_FACTORY_ADDRESS_MAP = {}, _FACTORY_ADDRESS_MAP[exports.ChainId.MAINNET] = FACTORY_ADDRESS, _FACTORY_ADDRESS_MAP[exports.ChainId.TESTNET] = '0xAbF484C483a14Ecac58236348a00b5AB88aeF17C', _FACTORY_ADDRESS_MAP);
var INIT_CODE_HASH = '0xc32921456714febc7bc52c75fa6c2a71531759fe90ab6a8addbd102a1a5b64dd';
var INIT_CODE_HASH_MAP = (_INIT_CODE_HASH_MAP = {}, _INIT_CODE_HASH_MAP[exports.ChainId.MAINNET] = INIT_CODE_HASH, _INIT_CODE_HASH_MAP[exports.ChainId.TESTNET] = '0xc32921456714febc7bc52c75fa6c2a71531759fe90ab6a8addbd102a1a5b64dd', _INIT_CODE_HASH_MAP);
var MINIMUM_LIQUIDITY = /*#__PURE__*/JSBI.BigInt(1000); // exports for internal consumption
var ZERO = /*#__PURE__*/JSBI.BigInt(0);
var ONE = /*#__PURE__*/JSBI.BigInt(1);
var TWO = /*#__PURE__*/JSBI.BigInt(2);
var THREE = /*#__PURE__*/JSBI.BigInt(3);
var FIVE = /*#__PURE__*/JSBI.BigInt(5);
var TEN = /*#__PURE__*/JSBI.BigInt(10);
var _100 = /*#__PURE__*/JSBI.BigInt(100);
var FEES_NUMERATOR = /*#__PURE__*/JSBI.BigInt(9975);
var FEES_DENOMINATOR = /*#__PURE__*/JSBI.BigInt(10000);
var SolidityType;
(function (SolidityType) {
SolidityType["uint8"] = "uint8";
SolidityType["uint256"] = "uint256";
})(SolidityType || (SolidityType = {}));
var SOLIDITY_TYPE_MAXIMA = (_SOLIDITY_TYPE_MAXIMA = {}, _SOLIDITY_TYPE_MAXIMA[SolidityType.uint8] = /*#__PURE__*/JSBI.BigInt('0xff'), _SOLIDITY_TYPE_MAXIMA[SolidityType.uint256] = /*#__PURE__*/JSBI.BigInt('0xffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff'), _SOLIDITY_TYPE_MAXIMA);
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function pushTryEntry(locs) {
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1 in locs && (entry.catchLoc = locs[1]), 2 in locs && (entry.finallyLoc = locs[2], entry.afterLoc = locs[3]), this.tryEntries.push(entry);
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return !!ctor && (ctor === GeneratorFunction || "GeneratorFunction" === (ctor.displayName || ctor.name));
}, exports.mark = function (genFun) {
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}, exports.awrap = function (arg) {
return {
__await: arg
};
}, defineIteratorMethods(AsyncIterator.prototype), define(AsyncIterator.prototype, asyncIteratorSymbol, function () {
return this;
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void 0 === PromiseImpl && (PromiseImpl = Promise);
var iter = new AsyncIterator(wrap(innerFn, outerFn, self, tryLocsList), PromiseImpl);
return exports.isGeneratorFunction(outerFn) ? iter : iter.next().then(function (result) {
return result.done ? result.value : iter.next();
});
}, defineIteratorMethods(Gp), define(Gp, toStringTagSymbol, "Generator"), define(Gp, iteratorSymbol, function () {
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constructor: Context,
reset: function (skipTempReset) {
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Boolean.prototype.valueOf.call(Reflect.construct(Boolean, [], function () {}));
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_construct = function _construct(Parent, args, Class) {
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a.push.apply(a, args);
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return instance;
};
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function _isNativeFunction(fn) {
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function _wrapNativeSuper(Class) {
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if (typeof Class !== "function") {
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_cache.set(Class, Wrapper);
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constructor: {
value: Wrapper,
enumerable: false,
writable: true,
configurable: true
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var n = Object.prototype.toString.call(o).slice(8, -1);
if (n === "Object" && o.constructor) n = o.constructor.name;
if (n === "Map" || n === "Set") return Array.from(o);
if (n === "Arguments" || /^(?:Ui|I)nt(?:8|16|32)(?:Clamped)?Array$/.test(n)) return _arrayLikeToArray(o, minLen);
}
function _arrayLikeToArray(arr, len) {
if (len == null || len > arr.length) len = arr.length;
for (var i = 0, arr2 = new Array(len); i < len; i++) arr2[i] = arr[i];
return arr2;
}
function _createForOfIteratorHelperLoose(o, allowArrayLike) {
var it = typeof Symbol !== "undefined" && o[Symbol.iterator] || o["@@iterator"];
if (it) return (it = it.call(o)).next.bind(it);
if (Array.isArray(o) || (it = _unsupportedIterableToArray(o)) || allowArrayLike && o && typeof o.length === "number") {
if (it) o = it;
var i = 0;
return function () {
if (i >= o.length) return {
done: true
};
return {
done: false,
value: o[i++]
};
};
}
throw new TypeError("Invalid attempt to iterate non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method.");
}
// see https://stackoverflow.com/a/41102306
var CAN_SET_PROTOTYPE = ('setPrototypeOf' in Object);
/**
* Indicates that the pair has insufficient reserves for a desired output amount. I.e. the amount of output cannot be
* obtained by sending any amount of input.
*/
var InsufficientReservesError = /*#__PURE__*/function (_Error) {
_inheritsLoose(InsufficientReservesError, _Error);
function InsufficientReservesError() {
var _this;
_this = _Error.call(this) || this;
_this.isInsufficientReservesError = true;
_this.name = _this.constructor.name;
if (CAN_SET_PROTOTYPE) Object.setPrototypeOf(_assertThisInitialized(_this), (this instanceof InsufficientReservesError ? this.constructor : void 0).prototype);
return _this;
}
return InsufficientReservesError;
}( /*#__PURE__*/_wrapNativeSuper(Error));
/**
* Indicates that the input amount is too small to produce any amount of output. I.e. the amount of input sent is less
* than the price of a single unit of output after fees.
*/
var InsufficientInputAmountError = /*#__PURE__*/function (_Error2) {
_inheritsLoose(InsufficientInputAmountError, _Error2);
function InsufficientInputAmountError() {
var _this2;
_this2 = _Error2.call(this) || this;
_this2.isInsufficientInputAmountError = true;
_this2.name = _this2.constructor.name;
if (CAN_SET_PROTOTYPE) Object.setPrototypeOf(_assertThisInitialized(_this2), (this instanceof InsufficientInputAmountError ? this.constructor : void 0).prototype);
return _this2;
}
return InsufficientInputAmountError;
}( /*#__PURE__*/_wrapNativeSuper(Error));
function validateSolidityTypeInstance(value, solidityType) {
!JSBI.greaterThanOrEqual(value, ZERO) ? invariant(false, value + " is not a " + solidityType + ".") : void 0;
!JSBI.lessThanOrEqual(value, SOLIDITY_TYPE_MAXIMA[solidityType]) ? invariant(false, value + " is not a " + solidityType + ".") : void 0;
} // warns if addresses are not checksummed
function validateAndParseAddress(address$1) {
try {
var checksummedAddress = address.getAddress(address$1);
"development" !== "production" ? warning(address$1 === checksummedAddress, address$1 + " is not checksummed.") : void 0;
return checksummedAddress;
} catch (error) {
invariant(false, address$1 + " is not a valid address.") ;
}
}
function parseBigintIsh(bigintIsh) {
return bigintIsh instanceof JSBI ? bigintIsh : JSBI.BigInt(bigintIsh);
} // mock the on-chain sqrt function
function sqrt(y) {
validateSolidityTypeInstance(y, SolidityType.uint256);
var z = ZERO;
var x;
if (JSBI.greaterThan(y, THREE)) {
z = y;
x = JSBI.add(JSBI.divide(y, TWO), ONE);
while (JSBI.lessThan(x, z)) {
z = x;
x = JSBI.divide(JSBI.add(JSBI.divide(y, x), x), TWO);
}
} else if (JSBI.notEqual(y, ZERO)) {
z = ONE;
}
return z;
} // given an array of items sorted by `comparator`, insert an item into its sort index and constrain the size to
// `maxSize` by removing the last item
function sortedInsert(items, add, maxSize, comparator) {
!(maxSize > 0) ? invariant(false, 'MAX_SIZE_ZERO') : void 0; // this is an invariant because the interface cannot return multiple removed items if items.length exceeds maxSize
!(items.length <= maxSize) ? invariant(false, 'ITEMS_SIZE') : void 0; // short circuit first item add
if (items.length === 0) {
items.push(add);
return null;
} else {
var isFull = items.length === maxSize; // short circuit if full and the additional item does not come before the last item
if (isFull && comparator(items[items.length - 1], add) <= 0) {
return add;
}
var lo = 0,
hi = items.length;
while (lo < hi) {
var mid = lo + hi >>> 1;
if (comparator(items[mid], add) <= 0) {
lo = mid + 1;
} else {
hi = mid;
}
}
items.splice(lo, 0, add);
return isFull ? items.pop() : null;
}
}
/**
* A currency is any fungible financial instrument on Ethereum, including Ether and all ERC20 tokens.
*
* The only instance of the base class `Currency` is Ether.
*/
var Currency =
/**
* Constructs an instance of the base class `Currency`. The only instance of the base class `Currency` is `Currency.ETHER`.
* @param decimals decimals of the currency
* @param symbol symbol of the currency
* @param name of the currency
*/
function Currency(decimals, symbol, name) {
validateSolidityTypeInstance(JSBI.BigInt(decimals), SolidityType.uint8);
this.decimals = decimals;
this.symbol = symbol;
this.name = name;
};
/**
* The only instance of the base class `Currency`.
*/
Currency.ETHER = /*#__PURE__*/new Currency(18, 'SCOL', 'SCOL');
var ETHER = Currency.ETHER;
var _WETH;
/**
* Represents an ERC20 token with a unique address and some metadata.
*/
var Token = /*#__PURE__*/function (_Currency) {
_inheritsLoose(Token, _Currency);
function Token(chainId, address, decimals, symbol, name, projectLink) {
var _this;
_this = _Currency.call(this, decimals, symbol, name) || this;
_this.chainId = chainId;
_this.address = validateAndParseAddress(address);
_this.projectLink = projectLink;
return _this;
}
/**
* Returns true if the two tokens are equivalent, i.e. have the same chainId and address.
* @param other other token to compare
*/
var _proto = Token.prototype;
_proto.equals = function equals(other) {
// short circuit on reference equality
if (this === other) {
return true;
}
return this.chainId === other.chainId && this.address === other.address;
}
/**
* Returns true if the address of this token sorts before the address of the other token
* @param other other token to compare
* @throws if the tokens have the same address
* @throws if the tokens are on different chains
*/
;
_proto.sortsBefore = function sortsBefore(other) {
!(this.chainId === other.chainId) ? invariant(false, 'CHAIN_IDS') : void 0;
!(this.address !== other.address) ? invariant(false, 'ADDRESSES') : void 0;
return this.address.toLowerCase() < other.address.toLowerCase();
};
return Token;
}(Currency);
/**
* Compares two currencies for equality
*/
function currencyEquals(currencyA, currencyB) {
if (currencyA instanceof Token && currencyB instanceof Token) {
return currencyA.equals(currencyB);
} else if (currencyA instanceof Token) {
return false;
} else if (currencyB instanceof Token) {
return false;
} else {
return currencyA === currencyB;
}
}
var WETH = (_WETH = {}, _WETH[exports.ChainId.MAINNET] = /*#__PURE__*/new Token(exports.ChainId.MAINNET, '0xB3F34bd27FC83f3792dFedf60210257C0c62Fd58', 18, 'WSCOL', 'Wrapped SCOL', 'https://explorer.scolcoin.com/'), _WETH[exports.ChainId.TESTNET] = /*#__PURE__*/new Token(exports.ChainId.TESTNET, '0xB3F34bd27FC83f3792dFedf60210257C0c62Fd58', 18, 'WSCOL', 'Wrapped SCOL', 'https://testnet-explorer.scolcoin.com/'), _WETH);
var _toSignificantRoundin, _toFixedRounding;
var Decimal = /*#__PURE__*/toFormat(_Decimal);
var Big = /*#__PURE__*/toFormat(_Big);
var toSignificantRounding = (_toSignificantRoundin = {}, _toSignificantRoundin[exports.Rounding.ROUND_DOWN] = Decimal.ROUND_DOWN, _toSignificantRoundin[exports.Rounding.ROUND_HALF_UP] = Decimal.ROUND_HALF_UP, _toSignificantRoundin[exports.Rounding.ROUND_UP] = Decimal.ROUND_UP, _toSignificantRoundin);
var toFixedRounding = (_toFixedRounding = {}, _toFixedRounding[exports.Rounding.ROUND_DOWN] = 0, _toFixedRounding[exports.Rounding.ROUND_HALF_UP] = 1, _toFixedRounding[exports.Rounding.ROUND_UP] = 3, _toFixedRounding);
var Fraction = /*#__PURE__*/function () {
function Fraction(numerator, denominator) {
if (denominator === void 0) {
denominator = ONE;
}
this.numerator = parseBigintIsh(numerator);
this.denominator = parseBigintIsh(denominator);
} // performs floor division
var _proto = Fraction.prototype;
_proto.invert = function invert() {
return new Fraction(this.denominator, this.numerator);
};
_proto.add = function add(other) {
var otherParsed = other instanceof Fraction ? other : new Fraction(parseBigintIsh(other));
if (JSBI.equal(this.denominator, otherParsed.denominator)) {
return new Fraction(JSBI.add(this.numerator, otherParsed.numerator), this.denominator);
}
return new Fraction(JSBI.add(JSBI.multiply(this.numerator, otherParsed.denominator), JSBI.multiply(otherParsed.numerator, this.denominator)), JSBI.multiply(this.denominator, otherParsed.denominator));
};
_proto.subtract = function subtract(other) {
var otherParsed = other instanceof Fraction ? other : new Fraction(parseBigintIsh(other));
if (JSBI.equal(this.denominator, otherParsed.denominator)) {
return new Fraction(JSBI.subtract(this.numerator, otherParsed.numerator), this.denominator);
}
return new Fraction(JSBI.subtract(JSBI.multiply(this.numerator, otherParsed.denominator), JSBI.multiply(otherParsed.numerator, this.denominator)), JSBI.multiply(this.denominator, otherParsed.denominator));
};
_proto.lessThan = function lessThan(other) {
var otherParsed = other instanceof Fraction ? other : new Fraction(parseBigintIsh(other));
return JSBI.lessThan(JSBI.multiply(this.numerator, otherParsed.denominator), JSBI.multiply(otherParsed.numerator, this.denominator));
};
_proto.equalTo = function equalTo(other) {
var otherParsed = other instanceof Fraction ? other : new Fraction(parseBigintIsh(other));
return JSBI.equal(JSBI.multiply(this.numerator, otherParsed.denominator), JSBI.multiply(otherParsed.numerator, this.denominator));
};
_proto.greaterThan = function greaterThan(other) {
var otherParsed = other instanceof Fraction ? other : new Fraction(parseBigintIsh(other));
return JSBI.greaterThan(JSBI.multiply(this.numerator, otherParsed.denominator), JSBI.multiply(otherParsed.numerator, this.denominator));
};
_proto.multiply = function multiply(other) {
var otherParsed = other instanceof Fraction ? other : new Fraction(parseBigintIsh(other));
return new Fraction(JSBI.multiply(this.numerator, otherParsed.numerator), JSBI.multiply(this.denominator, otherParsed.denominator));
};
_proto.divide = function divide(other) {
var otherParsed = other instanceof Fraction ? other : new Fraction(parseBigintIsh(other));
return new Fraction(JSBI.multiply(this.numerator, otherParsed.denominator), JSBI.multiply(this.denominator, otherParsed.numerator));
};
_proto.toSignificant = function toSignificant(significantDigits, format, rounding) {
if (format === void 0) {
format = {
groupSeparator: ''
};
}
if (rounding === void 0) {
rounding = exports.Rounding.ROUND_HALF_UP;
}
!Number.isInteger(significantDigits) ? invariant(false, significantDigits + " is not an integer.") : void 0;
!(significantDigits > 0) ? invariant(false, significantDigits + " is not positive.") : void 0;
Decimal.set({
precision: significantDigits + 1,
rounding: toSignificantRounding[rounding]
});
var quotient = new Decimal(this.numerator.toString()).div(this.denominator.toString()).toSignificantDigits(significantDigits);
return quotient.toFormat(quotient.decimalPlaces(), format);
};
_proto.toFixed = function toFixed(decimalPlaces, format, rounding) {
if (format === void 0) {
format = {
groupSeparator: ''
};
}
if (rounding === void 0) {
rounding = exports.Rounding.ROUND_HALF_UP;
}
!Number.isInteger(decimalPlaces) ? invariant(false, decimalPlaces + " is not an integer.") : void 0;
!(decimalPlaces >= 0) ? invariant(false, decimalPlaces + " is negative.") : void 0;
Big.DP = decimalPlaces;
Big.RM = toFixedRounding[rounding];
return new Big(this.numerator.toString()).div(this.denominator.toString()).toFormat(decimalPlaces, format);
}
/**
* Helper method for converting any super class back to a fraction
*/
;
_createClass(Fraction, [{
key: "quotient",
get: function get() {
return JSBI.divide(this.numerator, this.denominator);
} // remainder after floor division
}, {
key: "remainder",
get: function get() {
return new Fraction(JSBI.remainder(this.numerator, this.denominator), this.denominator);
}
}, {
key: "asFraction",
get: function get() {
return new Fraction(this.numerator, this.denominator);
}
}]);
return Fraction;
}();
var Big$1 = /*#__PURE__*/toFormat(_Big);
var CurrencyAmount = /*#__PURE__*/function (_Fraction) {
_inheritsLoose(CurrencyAmount, _Fraction);
// amount _must_ be raw, i.e. in the native representation
function CurrencyAmount(currency, amount) {
var _this;
var parsedAmount = parseBigintIsh(amount);
validateSolidityTypeInstance(parsedAmount, SolidityType.uint256);
_this = _Fraction.call(this, parsedAmount, JSBI.exponentiate(TEN, JSBI.BigInt(currency.decimals))) || this;
_this.currency = currency;
return _this;
}
/**
* Helper that calls the constructor with the ETHER currency
* @param amount ether amount in wei
*/
CurrencyAmount.ether = function ether(amount) {
return new CurrencyAmount(ETHER, amount);
};
var _proto = CurrencyAmount.prototype;
_proto.add = function add(other) {
!currencyEquals(this.currency, other.currency) ? invariant(false, 'TOKEN') : void 0;
return new CurrencyAmount(this.currency, JSBI.add(this.raw, other.raw));
};
_proto.subtract = function subtract(other) {
!currencyEquals(this.currency, other.currency) ? invariant(false, 'TOKEN') : void 0;
return new CurrencyAmount(this.currency, JSBI.subtract(this.raw, other.raw));
};
_proto.toSignificant = function toSignificant(significantDigits, format, rounding) {
if (significantDigits === void 0) {
significantDigits = 6;
}
if (rounding === void 0) {
rounding = exports.Rounding.ROUND_DOWN;
}
return _Fraction.prototype.toSignificant.call(this, significantDigits, format, rounding);
};
_proto.toFixed = function toFixed(decimalPlaces, format, rounding) {
if (decimalPlaces === void 0) {
decimalPlaces = this.currency.decimals;
}
if (rounding === void 0) {
rounding = exports.Rounding.ROUND_DOWN;
}
!(decimalPlaces <= this.currency.decimals) ? invariant(false, 'DECIMALS') : void 0;
return _Fraction.prototype.toFixed.call(this, decimalPlaces, format, rounding);
};
_proto.toExact = function toExact(format) {
if (format === void 0) {
format = {
groupSeparator: ''
};
}
Big$1.DP = this.currency.decimals;
return new Big$1(this.numerator.toString()).div(this.denominator.toString()).toFormat(format);
};
_createClass(CurrencyAmount, [{
key: "raw",
get: function get() {
return this.numerator;
}
}]);
return CurrencyAmount;
}(Fraction);
var TokenAmount = /*#__PURE__*/function (_CurrencyAmount) {
_inheritsLoose(TokenAmount, _CurrencyAmount);
// amount _must_ be raw, i.e. in the native representation
function TokenAmount(token, amount) {
var _this;
_this = _CurrencyAmount.call(this, token, amount) || this;
_this.token = token;
return _this;
}
var _proto = TokenAmount.prototype;
_proto.add = function add(other) {
!this.token.equals(other.token) ? invariant(false, 'TOKEN') : void 0;
return new TokenAmount(this.token, JSBI.add(this.raw, other.raw));
};
_proto.subtract = function subtract(other) {
!this.token.equals(other.token) ? invariant(false, 'TOKEN') : void 0;
return new TokenAmount(this.token, JSBI.subtract(this.raw, other.raw));
};
return TokenAmount;
}(CurrencyAmount);
var Price = /*#__PURE__*/function (_Fraction) {
_inheritsLoose(Price, _Fraction);
// denominator and numerator _must_ be raw, i.e. in the native representation
function Price(baseCurrency, quoteCurrency, denominator, numerator) {
var _this;
_this = _Fraction.call(this, numerator, denominator) || this;
_this.baseCurrency = baseCurrency;
_this.quoteCurrency = quoteCurrency;
_this.scalar = new Fraction(JSBI.exponentiate(TEN, JSBI.BigInt(baseCurrency.decimals)), JSBI.exponentiate(TEN, JSBI.BigInt(quoteCurrency.decimals)));
return _this;
}
Price.fromRoute = function fromRoute(route) {
var prices = [];
for (var _iterator = _createForOfIteratorHelperLoose(route.pairs.entries()), _step; !(_step = _iterator()).done;) {
var _step$value = _step.value,
i = _step$value[0],
pair = _step$value[1];
prices.push(route.path[i].equals(pair.token0) ? new Price(pair.reserve0.currency, pair.reserve1.currency, pair.reserve0.raw, pair.reserve1.raw) : new Price(pair.reserve1.currency, pair.reserve0.currency, pair.reserve1.raw, pair.reserve0.raw));
}
return prices.slice(1).reduce(function (accumulator, currentValue) {
return accumulator.multiply(currentValue);
}, prices[0]);
};
var _proto = Price.prototype;
_proto.invert = function invert() {
return new Price(this.quoteCurrency, this.baseCurrency, this.numerator, this.denominator);
};
_proto.multiply = function multiply(other) {
!currencyEquals(this.quoteCurrency, other.baseCurrency) ? invariant(false, 'TOKEN') : void 0;
var fraction = _Fraction.prototype.multiply.call(this, other);
return new Price(this.baseCurrency, other.quoteCurrency, fraction.denominator, fraction.numerator);
} // performs floor division on overflow
;
_proto.quote = function quote(currencyAmount) {
!currencyEquals(currencyAmount.currency, this.baseCurrency) ? invariant(false, 'TOKEN') : void 0;
if (this.quoteCurrency instanceof Token) {
return new TokenAmount(this.quoteCurrency, _Fraction.prototype.multiply.call(this, currencyAmount.raw).quotient);
}
return CurrencyAmount.ether(_Fraction.prototype.multiply.call(this, currencyAmount.raw).quotient);
};
_proto.toSignificant = function toSignificant(significantDigits, format, rounding) {
if (significantDigits === void 0) {
significantDigits = 6;
}
return this.adjusted.toSignificant(significantDigits, format, rounding);
};
_proto.toFixed = function toFixed(decimalPlaces, format, rounding) {
if (decimalPlaces === void 0) {
decimalPlaces = 4;
}
return this.adjusted.toFixed(decimalPlaces, format, rounding);
};
_createClass(Price, [{
key: "raw",
get: function get() {
return new Fraction(this.numerator, this.denominator);
}
}, {
key: "adjusted",
get: function get() {
return _Fraction.prototype.multiply.call(this, this.scalar);
}
}]);
return Price;
}(Fraction);
var PAIR_ADDRESS_CACHE = {};
var composeKey = function composeKey(token0, token1) {
return token0.chainId + "-" + token0.address + "-" + token1.address;
};
var Pair = /*#__PURE__*/function () {
function Pair(tokenAmountA, tokenAmountB) {
var tokenAmounts = tokenAmountA.token.sortsBefore(tokenAmountB.token) // does safety checks
? [tokenAmountA, tokenAmountB] : [tokenAmountB, tokenAmountA];
this.liquidityToken = new Token(tokenAmounts[0].token.chainId, Pair.getAddress(tokenAmounts[0].token, tokenAmounts[1].token), 18, 'ICOL-LP', 'Icolcoin LPs');
this.tokenAmounts = tokenAmounts;
}
Pair.getAddress = function getAddress(tokenA, tokenB) {
var _PAIR_ADDRESS_CACHE;
var _ref = tokenA.sortsBefore(tokenB) ? [tokenA, tokenB] : [tokenB, tokenA],
token0 = _ref[0],
token1 = _ref[1]; // does safety checks
var key = composeKey(token0, token1);
if (((_PAIR_ADDRESS_CACHE = PAIR_ADDRESS_CACHE) == null ? void 0 : _PAIR_ADDRESS_CACHE[key]) === undefined) {
var _extends2;
PAIR_ADDRESS_CACHE = _extends({}, PAIR_ADDRESS_CACHE, (_extends2 = {}, _extends2[key] = address.getCreate2Address(FACTORY_ADDRESS_MAP[token0.chainId], solidity.keccak256(['bytes'], [solidity.pack(['address', 'address'], [token0.address, token1.address])]), INIT_CODE_HASH_MAP[token0.chainId]), _extends2));
}
return PAIR_ADDRESS_CACHE[key];
}
/**
* Returns true if the token is either token0 or token1
* @param token to check
*/
;
var _proto = Pair.prototype;
_proto.involvesToken = function involvesToken(token) {
return token.equals(this.token0) || token.equals(this.token1);
}
/**
* Returns the current mid price of the pair in terms of token0, i.e. the ratio of reserve1 to reserve0
*/
;
/**
* Return the price of the given token in terms of the other token in the pair.
* @param token token to return price of
*/
_proto.priceOf = function priceOf(token) {
!this.involvesToken(token) ? invariant(false, 'TOKEN') : void 0;
return token.equals(this.token0) ? this.token0Price : this.token1Price;
}
/**
* Returns the chain ID of the tokens in the pair.
*/
;
_proto.reserveOf = function reserveOf(token) {
!this.involvesToken(token) ? invariant(false, 'TOKEN') : void 0;
return token.equals(this.token0) ? this.reserve0 : this.reserve1;
};
_proto.getOutputAmount = function getOutputAmount(inputAmount) {
!this.involvesToken(inputAmount.token) ? invariant(false, 'TOKEN') : void 0;
if (JSBI.equal(this.reserve0.raw, ZERO) || JSBI.equal(this.reserve1.raw, ZERO)) {
throw new InsufficientReservesError();
}
var inputReserve = this.reserveOf(inputAmount.token);
var outputReserve = this.reserveOf(inputAmount.token.equals(this.token0) ? this.token1 : this.token0);
var inputAmountWithFee = JSBI.multiply(inputAmount.raw, FEES_NUMERATOR);
var numerator = JSBI.multiply(inputAmountWithFee, outputReserve.raw);
var denominator = JSBI.add(JSBI.multiply(inputReserve.raw, FEES_DENOMINATOR), inputAmountWithFee);
var outputAmount = new TokenAmount(inputAmount.token.equals(this.token0) ? this.token1 : this.token0, JSBI.divide(numerator, denominator));
if (JSBI.equal(outputAmount.raw, ZERO)) {
throw new InsufficientInputAmountError();
}
return [outputAmount, new Pair(inputReserve.add(inputAmount), outputReserve.subtract(outputAmount))];
};
_proto.getInputAmount = function getInputAmount(outputAmount) {
!this.involvesToken(outputAmount.token) ? invariant(false, 'TOKEN') : void 0;
if (JSBI.equal(this.reserve0.raw, ZERO) || JSBI.equal(this.reserve1.raw, ZERO) || JSBI.greaterThanOrEqual(outputAmount.raw, this.reserveOf(outputAmount.token).raw)) {
throw new InsufficientReservesError();
}
var outputReserve = this.reserveOf(outputAmount.token);
var inputReserve = this.reserveOf(outputAmount.token.equals(this.token0) ? this.token1 : this.token0);
var numerator = JSBI.multiply(JSBI.multiply(inputReserve.raw, outputAmount.raw), FEES_DENOMINATOR);
var denominator = JSBI.multiply(JSBI.subtract(outputReserve.raw, outputAmount.raw), FEES_NUMERATOR);
var inputAmount = new TokenAmount(outputAmount.token.equals(this.token0) ? this.token1 : this.token0, JSBI.add(JSBI.divide(numerator, denominator), ONE));
return [inputAmount, new Pair(inputReserve.add(inputAmount), outputReserve.subtract(outputAmount))];
};
_proto.getLiquidityMinted = function getLiquidityMinted(totalSupply, tokenAmountA, tokenAmountB) {
!totalSupply.token.equals(this.liquidityToken) ? invariant(false, 'LIQUIDITY') : void 0;
var tokenAmounts = tokenAmountA.token.sortsBefore(tokenAmountB.token) // does safety checks
? [tokenAmountA, tokenAmountB] : [tokenAmountB, tokenAmountA];
!(tokenAmounts[0].token.equals(this.token0) && tokenAmounts[1].token.equals(this.token1)) ? invariant(false, 'TOKEN') : void 0;
var liquidity;
if (JSBI.equal(totalSupply.raw, ZERO)) {
liquidity = JSBI.subtract(sqrt(JSBI.multiply(tokenAmounts[0].raw, tokenAmounts[1].raw)), MINIMUM_LIQUIDITY);
} else {
var amount0 = JSBI.divide(JSBI.multiply(tokenAmounts[0].raw, totalSupply.raw), this.reserve0.raw);
var amount1 = JSBI.divide(JSBI.multiply(tokenAmounts[1].raw, totalSupply.raw), this.reserve1.raw);
liquidity = JSBI.lessThanOrEqual(amount0, amount1) ? amount0 : amount1;
}
if (!JSBI.greaterThan(liquidity, ZERO)) {
throw new InsufficientInputAmountError();
}
return new TokenAmount(this.liquidityToken, liquidity);
};
_proto.getLiquidityValue = function getLiquidityValue(token, totalSupply, liquidity, feeOn, kLast) {
if (feeOn === void 0) {
feeOn = false;
}
!this.involvesToken(token) ? invariant(false, 'TOKEN') : void 0;
!totalSupply.token.equals(this.liquidityToken) ? invariant(false, 'TOTAL_SUPPLY') : void 0;
!liquidity.token.equals(this.liquidityToken) ? invariant(false, 'LIQUIDITY') : void 0;
!JSBI.lessThanOrEqual(liquidity.raw, totalSupply.raw) ? invariant(false, 'LIQUIDITY') : void 0;
var totalSupplyAdjusted;
if (!feeOn) {
totalSupplyAdjusted = totalSupply;
} else {
!!!kLast ? invariant(false, 'K_LAST') : void 0;
var kLastParsed = parseBigintIsh(kLast);
if (!JSBI.equal(kLastParsed, ZERO)) {
var rootK = sqrt(JSBI.multiply(this.reserve0.raw, this.reserve1.raw));
var rootKLast = sqrt(kLastParsed);
if (JSBI.greaterThan(rootK, rootKLast)) {
var numerator = JSBI.multiply(totalSupply.raw, JSBI.subtract(rootK, rootKLast));
var denominator = JSBI.add(JSBI.multiply(rootK, FIVE), rootKLast);
var feeLiquidity = JSBI.divide(numerator, denominator);
totalSupplyAdjusted = totalSupply.add(new TokenAmount(this.liquidityToken, feeLiquidity));
} else {
totalSupplyAdjusted = totalSupply;
}
} else {
totalSupplyAdjusted = totalSupply;
}
}
return new TokenAmount(token, JSBI.divide(JSBI.multiply(liquidity.raw, this.reserveOf(token).raw), totalSupplyAdjusted.raw));
};
_createClass(Pair, [{
key: "token0Price",
get: function get() {
return new Price(this.token0, this.token1, this.tokenAmounts[0].raw, this.tokenAmounts[1].raw);
}
/**
* Returns the current mid price of the pair in terms of token1, i.e. the ratio of reserve0 to reserve1
*/
}, {
key: "token1Price",
get: function get() {
return new Price(this.token1, this.token0, this.tokenAmounts[1].raw, this.tokenAmounts[0].raw);
}
}, {
key: "chainId",
get: function get() {
return this.token0.chainId;
}
}, {
key: "token0",
get: function get() {
return this.tokenAmounts[0].token;
}
}, {
key: "token1",
get: function get() {
return this.tokenAmounts[1].token;
}
}, {
key: "reserve0",
get: function get() {
return this.tokenAmounts[0];
}
}, {
key: "reserve1",
get: function get() {
return this.tokenAmounts[1];
}
}]);
return Pair;
}();
var Route = /*#__PURE__*/function () {
function Route(pairs, input, output) {
!(pairs.length > 0) ? invariant(false, 'PAIRS') : void 0;
!pairs.every(function (pair) {
return pair.chainId === pairs[0].chainId;
}) ? invariant(false, 'CHAIN_IDS') : void 0;
!(input instanceof Token && pairs[0].involvesToken(input) || input === ETHER && pairs[0].involvesToken(WETH[pairs[0].chainId])) ? invariant(false, 'INPUT') : void 0;
!(typeof output === 'undefined' || output instanceof Token && pairs[pairs.length - 1].involvesToken(output) || output === ETHER && pairs[pairs.length - 1].involvesToken(WETH[pairs[0].chainId])) ? invariant(false, 'OUTPUT') : void 0;
var path = [input