@everestswap/sdk
Version:
🛠An SDK for building applications on top of Everest.
1,749 lines (1,553 loc) • 138 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 contracts = require('@ethersproject/contracts');
var networks = require('@ethersproject/networks');
var providers = require('@ethersproject/providers');
var _Big = _interopDefault(require('big.js'));
var toFormat = _interopDefault(require('toformat'));
var _Decimal = _interopDefault(require('decimal.js-light'));
var solidity = require('@ethersproject/solidity');
var _FACTORY_ADDRESS, _SOLIDITY_TYPE_MAXIMA;
(function (ChainId) {
ChainId[ChainId["ICE_MAINNET"] = 550] = "ICE_MAINNET";
ChainId[ChainId["ICE_SNOW"] = 552] = "ICE_SNOW";
ChainId[ChainId["ICE_ARCTIC"] = 553] = "ICE_ARCTIC";
})(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 = {})); // TODO: replace ICE_MAINNET addresses when mainnet releases
var contractAddresses = {
ICE_MAINNET: {
TOKEN: '0x0000000000000000000000000000000000001111',
FACTORY: '0x0000000000000000000000000000000000001112',
ROUTER: '0x0000000000000000000000000000000000001113',
WICZ: '0x0000000000000000000000000000000000001114',
CHEF: '0x0000000000000000000000000000000000001115',
AIRDROP: '0x0000000000000000000000000000000000001116',
MULTICALL: '0x0000000000000000000000000000000000001117'
},
ICE_SNOW: {
TOKEN: '0x0000000000000000000000000000000000001111',
FACTORY: '0x8a5B2745f4C9334ca5B91d9db8c4ba049Ad38E0F',
ROUTER: '0x622032CAA208Bdd9908564CEEFB50C36Cc576c60',
WICZ: '0xd92FB2844E76e455DfD0e20D46BCA2Cc77558B6e',
CHEF: '0x0000000000000000000000000000000000001115',
AIRDROP: '0x0000000000000000000000000000000000001116',
MULTICALL: '0x3c68c784B94040d49C0b935ddfAedC36b8Dc8526'
},
ICE_ARCTIC: {
TOKEN: '0xCf3cd1A322fA7397588a48e6bC0eB2cDe56fe783',
FACTORY: '0x720E42229a3552648B2AB5C01DbEadEfEC0f7bcb',
ROUTER: '0x260Ed18B4c96Ef72551F28Ca086fc99a11331f76',
WICZ: '0xd92FB2844E76e455DfD0e20D46BCA2Cc77558B6e',
CHEF: '0x6A21eE0519a3614161A60CD59887A9392b8b9FC1',
AIRDROP: '0x6e4D6C1c10DEBD2f938B6375dC28C4158b3c47fD',
MULTICALL: '0x3c68c784B94040d49C0b935ddfAedC36b8Dc8526'
}
};
var FACTORY_ADDRESS = (_FACTORY_ADDRESS = {}, _FACTORY_ADDRESS[exports.ChainId.ICE_MAINNET] = contractAddresses.ICE_MAINNET.FACTORY, _FACTORY_ADDRESS[exports.ChainId.ICE_SNOW] = contractAddresses.ICE_SNOW.FACTORY, _FACTORY_ADDRESS[exports.ChainId.ICE_ARCTIC] = contractAddresses.ICE_ARCTIC.FACTORY, _FACTORY_ADDRESS);
var INIT_CODE_HASH = '0xd4cc97f7f1105b7d9084d4771a71f7c9772a5b9546b3736add1f2ebe94995713';
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 _997 = /*#__PURE__*/JSBI.BigInt(997);
var _1000 = /*#__PURE__*/JSBI.BigInt(1000);
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);
function _defineProperties(target, props) {
for (var i = 0; i < props.length; i++) {
var descriptor = props[i];
descriptor.enumerable = descriptor.enumerable || false;
descriptor.configurable = true;
if ("value" in descriptor) descriptor.writable = true;
Object.defineProperty(target, descriptor.key, descriptor);
}
}
function _createClass(Constructor, protoProps, staticProps) {
if (protoProps) _defineProperties(Constructor.prototype, protoProps);
if (staticProps) _defineProperties(Constructor, staticProps);
Object.defineProperty(Constructor, "prototype", {
writable: false
});
return Constructor;
}
function _extends() {
_extends = Object.assign || function (target) {
for (var i = 1; i < arguments.length; i++) {
var source = arguments[i];
for (var key in source) {
if (Object.prototype.hasOwnProperty.call(source, key)) {
target[key] = source[key];
}
}
}
return target;
};
return _extends.apply(this, arguments);
}
function _inheritsLoose(subClass, superClass) {
subClass.prototype = Object.create(superClass.prototype);
subClass.prototype.constructor = subClass;
_setPrototypeOf(subClass, superClass);
}
function _getPrototypeOf(o) {
_getPrototypeOf = Object.setPrototypeOf ? Object.getPrototypeOf : function _getPrototypeOf(o) {
return o.__proto__ || Object.getPrototypeOf(o);
};
return _getPrototypeOf(o);
}
function _setPrototypeOf(o, p) {
_setPrototypeOf = Object.setPrototypeOf || function _setPrototypeOf(o, p) {
o.__proto__ = p;
return o;
};
return _setPrototypeOf(o, p);
}
function _isNativeReflectConstruct() {
if (typeof Reflect === "undefined" || !Reflect.construct) return false;
if (Reflect.construct.sham) return false;
if (typeof Proxy === "function") return true;
try {
Boolean.prototype.valueOf.call(Reflect.construct(Boolean, [], function () {}));
return true;
} catch (e) {
return false;
}
}
function _construct(Parent, args, Class) {
if (_isNativeReflectConstruct()) {
_construct = Reflect.construct;
} else {
_construct = function _construct(Parent, args, Class) {
var a = [null];
a.push.apply(a, args);
var Constructor = Function.bind.apply(Parent, a);
var instance = new Constructor();
if (Class) _setPrototypeOf(instance, Class.prototype);
return instance;
};
}
return _construct.apply(null, arguments);
}
function _isNativeFunction(fn) {
return Function.toString.call(fn).indexOf("[native code]") !== -1;
}
function _wrapNativeSuper(Class) {
var _cache = typeof Map === "function" ? new Map() : undefined;
_wrapNativeSuper = function _wrapNativeSuper(Class) {
if (Class === null || !_isNativeFunction(Class)) return Class;
if (typeof Class !== "function") {
throw new TypeError("Super expression must either be null or a function");
}
if (typeof _cache !== "undefined") {
if (_cache.has(Class)) return _cache.get(Class);
_cache.set(Class, Wrapper);
}
function Wrapper() {
return _construct(Class, arguments, _getPrototypeOf(this).constructor);
}
Wrapper.prototype = Object.create(Class.prototype, {
constructor: {
value: Wrapper,
enumerable: false,
writable: true,
configurable: true
}
});
return _setPrototypeOf(Wrapper, Class);
};
return _wrapNativeSuper(Class);
}
function _assertThisInitialized(self) {
if (self === void 0) {
throw new ReferenceError("this hasn't been initialised - super() hasn't been called");
}
return self;
}
function _unsupportedIterableToArray(o, minLen) {
if (!o) return;
if (typeof o === "string") return _arrayLikeToArray(o, minLen);
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 : typeof bigintIsh === 'bigint' ? JSBI.BigInt(bigintIsh.toString()) : 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;
}
}
function toHex(currencyAmount) {
return "0x" + currencyAmount.raw.toString(16);
}
var ZERO_HEX = '0x0';
/**
* Represents the Uniswap V2 Router, and has static methods for helping execute trades.
*/
var Router = /*#__PURE__*/function () {
/**
* Cannot be constructed.
*/
function Router() {}
/**
* Produces the on-chain method name to call and the hex encoded parameters to pass as arguments for a given trade.
* @param trade to produce call parameters for
* @param options options for the call parameters
*/
Router.swapCallParameters = function swapCallParameters(trade, options, chainId) {
if (chainId === void 0) {
chainId = exports.ChainId.ICE_MAINNET;
}
var etherIn = trade.inputAmount.currency === CICZ[chainId];
var etherOut = trade.outputAmount.currency === CICZ[chainId]; // the router does not support both ether in and out
!!(etherIn && etherOut) ? invariant(false, 'ETHER_IN_OUT') : void 0;
!(!('ttl' in options) || options.ttl > 0) ? invariant(false, 'TTL') : void 0;
var to = validateAndParseAddress(options.recipient);
var amountIn = toHex(trade.maximumAmountIn(options.allowedSlippage, chainId));
var amountOut = toHex(trade.minimumAmountOut(options.allowedSlippage, chainId));
var path = trade.route.path.map(function (token) {
return token.address;
});
var deadline = 'ttl' in options ? "0x" + (Math.floor(new Date().getTime() / 1000) + options.ttl).toString(16) : "0x" + options.deadline.toString(16);
var useFeeOnTransfer = Boolean(options.feeOnTransfer);
var methodName;
var args;
var value;
switch (trade.tradeType) {
case exports.TradeType.EXACT_INPUT:
if (etherIn) {
methodName = useFeeOnTransfer ? 'swapExactICZForTokensSupportingFeeOnTransferTokens' : 'swapExactICZForTokens'; // (uint amountOutMin, address[] calldata path, address to, uint deadline)
args = [amountOut, path, to, deadline];
value = amountIn;
} else if (etherOut) {
methodName = useFeeOnTransfer ? 'swapExactTokensForICZSupportingFeeOnTransferTokens' : 'swapExactTokensForICZ'; // (uint amountIn, uint amountOutMin, address[] calldata path, address to, uint deadline)
args = [amountIn, amountOut, path, to, deadline];
value = ZERO_HEX;
} else {
methodName = useFeeOnTransfer ? 'swapExactTokensForTokensSupportingFeeOnTransferTokens' : 'swapExactTokensForTokens'; // (uint amountIn, uint amountOutMin, address[] calldata path, address to, uint deadline)
args = [amountIn, amountOut, path, to, deadline];
value = ZERO_HEX;
}
break;
case exports.TradeType.EXACT_OUTPUT:
!!useFeeOnTransfer ? invariant(false, 'EXACT_OUT_FOT') : void 0;
if (etherIn) {
methodName = 'swapICZForExactTokens'; // (uint amountOut, address[] calldata path, address to, uint deadline)
args = [amountOut, path, to, deadline];
value = amountIn;
} else if (etherOut) {
methodName = 'swapTokensForExactICZ'; // (uint amountOut, uint amountInMax, address[] calldata path, address to, uint deadline)
args = [amountOut, amountIn, path, to, deadline];
value = ZERO_HEX;
} else {
methodName = 'swapTokensForExactTokens'; // (uint amountOut, uint amountInMax, address[] calldata path, address to, uint deadline)
args = [amountOut, amountIn, path, to, deadline];
value = ZERO_HEX;
}
break;
}
return {
methodName: methodName,
args: args,
value: value
};
};
return Router;
}();
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);
};
_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);
}
}]);
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
* @param chainId
*/
CurrencyAmount.ether = function ether(amount, chainId) {
if (chainId === void 0) {
chainId = exports.ChainId.ICE_MAINNET;
}
return new CurrencyAmount(CICZ[chainId], 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, chainId) {
if (chainId === void 0) {
chainId = exports.ChainId.ICE_MAINNET;
}
!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, chainId);
};
_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 Pair = /*#__PURE__*/function () {
function Pair(tokenAmountA, tokenAmountB, chainId) {
if (chainId === void 0) {
chainId = exports.ChainId.ICE_MAINNET;
}
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, chainId), 18, 'EVRSL', 'Everest Liquidity');
this.tokenAmounts = tokenAmounts;
}
Pair.getAddress = function getAddress(tokenA, tokenB, chainId) {
var _PAIR_ADDRESS_CACHE, _PAIR_ADDRESS_CACHE$t;
if (chainId === void 0) {
chainId = exports.ChainId.ICE_MAINNET;
}
var tokens = tokenA.sortsBefore(tokenB) ? [tokenA, tokenB] : [tokenB, tokenA]; // does safety checks
if (((_PAIR_ADDRESS_CACHE = PAIR_ADDRESS_CACHE) === null || _PAIR_ADDRESS_CACHE === void 0 ? void 0 : (_PAIR_ADDRESS_CACHE$t = _PAIR_ADDRESS_CACHE[tokens[0].address]) === null || _PAIR_ADDRESS_CACHE$t === void 0 ? void 0 : _PAIR_ADDRESS_CACHE$t[tokens[1].address]) === undefined) {
var _PAIR_ADDRESS_CACHE2, _extends2, _extends3;
PAIR_ADDRESS_CACHE = _extends({}, PAIR_ADDRESS_CACHE, (_extends3 = {}, _extends3[tokens[0].address] = _extends({}, (_PAIR_ADDRESS_CACHE2 = PAIR_ADDRESS_CACHE) === null || _PAIR_ADDRESS_CACHE2 === void 0 ? void 0 : _PAIR_ADDRESS_CACHE2[tokens[0].address], (_extends2 = {}, _extends2[tokens[1].address] = address.getCreate2Address(FACTORY_ADDRESS[chainId], solidity.keccak256(['bytes'], [solidity.pack(['address', 'address'], [tokens[0].address, tokens[1].address])]), INIT_CODE_HASH), _extends2)), _extends3));
}
return PAIR_ADDRESS_CACHE[tokens[0].address][tokens[1].address];
}
/**
* 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, chainId) {
if (chainId === void 0) {
chainId = exports.ChainId.ICE_MAINNET;
}
!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, _997);
var numerator = JSBI.multiply(inputAmountWithFee, outputReserve.raw);
var denominator = JSBI.add(JSBI.multiply(inputReserve.raw, _1000), 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), chainId)];
};
_proto.getInputAmount = function getInputAmount(outputAmount, chainId) {
if (chainId === void 0) {
chainId = exports.ChainId.ICE_MAINNET;
}
!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), _1000);
var denominator = JSBI.multiply(JSBI.subtract(outputReserve.raw, outputAmount.raw), _997);
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), chainId)];
};
_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 _format = "hh-sol-artifact-1";
var contractName = "EverestPair";
var sourceName = "contracts/everest-core/EverestPair.sol";
var abi = [
{
inputs: [
],
payable: false,
stateMutability: "nonpayable",
type: "constructor"
},
{
anonymous: false,
inputs: [
{
indexed: true,
internalType: "address",
name: "owner",
type: "address"
},
{
indexed: true,
internalType: "address",
name: "spender",
type: "address"
},
{
indexed: false,
internalType: "uint256",
name: "value",
type: "uint256"
}
],
name: "Approval",
type: "event"
},
{
anonymous: false,
inputs: [
{
indexed: true,
internalType: "address",
name: "sender",
type: "address"
},
{
indexed: false,
internalType: "uint256",
name: "amount0",
type: "uint256"
},
{
indexed: false,
internalType: "uint256",
name: "amount1",
type: "uint256"
},
{
indexed: true,
internalType: "address",
name: "to",
type: "address"
}
],
name: "Burn",
type: "event"
},
{
anonymous: false,
inputs: [
{
indexed: true,
internalType: "address",
name: "sender",
type: "address"
},
{
indexed: false,
internalType: "uint256",
name: "amount0",
type: "uint256"
},
{
indexed: false,
internalType: "uint256",
name: "amount1",
type: "uint256"
}
],
name: "Mint",
type: "event"
},
{
anonymous: false,
inputs: [
{
indexed: true,
internalType: "address",
name: "sender",
type: "address"
},
{
indexed: false,
internalType: "uint256",
name: "amount0In",
type: "uint256"
},
{
indexed: false,
internalType: "uint256",
name: "amount1In",
type: "uint256"
},
{
indexed: false,
internalType: "uint256",
name: "amount0Out",
type: "uint256"
},
{
indexed: false,
internalType: "uint256",
name: "amount1Out",
type: "uint256"
},
{
indexed: true,
internalType: "address",
name: "to",
type: "address"
}
],
name: "Swap",
type: "event"
},
{
anonymous: false,
inputs: [
{
indexed: false,
internalType: "uint112",
name: "reserve0",
type: "uint112"
},
{
indexed: false,
internalType: "uint112",
name: "reserve1",
type: "uint112"
}
],
name: "Sync",
type: "event"
},
{
anonymous: false,
inputs: [
{
indexed: true,
internalType: "address",
name: "from",
type: "address"
},
{
indexed: true,
internalType: "address",
name: "to",
type: "address"
},
{
indexed: false,
internalType: "uint256",
name: "value",
type: "uint256"
}
],
name: "Transfer",
type: "event"
},
{
constant: true,
inputs: [
],
name: "DOMAIN_SEPARATOR",
outputs: [
{
internalType: "bytes32",
name: "",
type: "bytes32"
}
],
payable: false,
stateMutability: "view",
type: "function"
},
{
constant: true,
inputs: [
],
name: "MINIMUM_LIQUIDITY",
outputs: [
{
internalType: "uint256",
name: "",
type: "uint256"
}
],
payable: false,
stateMutability: "view",
type: "function"
},
{
constant: true,
inputs: [
],
name: "PERMIT_TYPEHASH",
outputs: [
{
internalType: "bytes32",
name: "",
type: "bytes32"
}
],
payable: false,
stateMutability: "view",
type: "function"
},
{
constant: true,
inputs: [
{
internalType: "address",
name: "",
type: "address"
},
{
internalType: "address",
name: "",
type: "address"
}
],
name: "allowance",
outputs: [
{
internalType: "uint256",
name: "",
type: "uint256"
}
],
payable: false,
stateMutability: "view",
type: "function"
},
{
constant: false,
inputs: [
{
internalType: "address",
name: "spender",
type: "address"
},
{
internalType: "uint256",
name: "value",
type: "uint256"
}
],
name: "approve",
outputs: [
{
internalType: "bool",
name: "",
type: "bool"
}
],
payable: false,
stateMutability: "nonpayable",
type: "function"
},
{
constant: true,
inputs: [
{
internalType: "address",
name: "",
type: "address"
}
],
name: "balanceOf",
outputs: [
{
internalType: "uint256",
name: "",
type: "uint256"
}
],
payable: false,
stateMutability: "view",
type: "function"
},
{
constant: false,
inputs: [
{
internalType: "address",
name: "to",
type: "address"
}
],
name: "burn",
outputs: [
{
internalType: "uint256",
name: "amount0",
type: "uint256"
},
{
internalType: "uint256",
name: "amount1",
type: "uint256"
}
],
payable: false,
stateMutability: "nonpayable",
type: "function"
},
{
constant: true,
inputs: [
],
name: "decimals",
outputs: [
{
internalType: "uint8",
name: "",
type: "uint8"
}
],
payable: false,
stateMutability: "view",
type: "function"
},
{
constant: true,
inputs: [
],
name: "factory",
outputs: [
{
internalType: "address",
name: "",
type: "address"
}
],
payable: false,
stateMutability: "view",
type: "function"
},
{
constant: true,
inputs: [
],
name: "getReserves",
outputs: [
{
internalType: "uint112",
name: "_reserve0",
type: "uint112"
},
{
internalType: "uint112",
name: "_reserve1",
type: "uint112"
},
{
internalType: "uint32",
name: "_blockTimestampLast",
type: "uint32"
}
],
payable: false,
stateMutability: "view",
type: "function"
},
{
constant: false,
inputs: [
{
internalType: "address",
name: "_token0",
type: "address"
},
{
internalType: "address",
name: "_token1",
type: "address"
}
],
name: "initialize",
outputs: [
],
payable: false,
stateMutability: "nonpayable",
type: "function"
},
{
constant: true,
inputs: [
],
name: "kLast",
outputs: [
{
internalType: "uint256",
name: "",
type: "uint256"
}
],
payable: false,
stateMutability: "view",
type: "function"
},
{
constant: false,
inputs: [
{
internalType: "address",
name: "to",
type: "address"
}
],
name: "mint",
outputs: [
{
internalType: "uint256",
name: "liquidity",
type: "uint256"
}
],
payable: false,
stateMutability: "nonpayable",
type: "function"
},
{
constant: true,
inputs: [
],
name: "name",
outputs: [
{
internalType: "string",
name: "",
type: "string"
}
],
payable: false,
stateMutability: "view",
type: "function"
},
{
constant: true,
inputs: [
{
internalType: "address",
name: "",
type: "address"
}
],
name: "nonces",
outputs: [
{
internalType: "uint256",
name: "",
type: "uint256"
}
],
payable: false,
stateMutability: "view",
type: "function"
},
{
constant: false,
inputs: [
{
internalType: "address",
name: "owner",
type: "address"
},
{
internalType: "address",
name: "spender",
type: "address"
},
{
internalType: "uint256",
name: "value",
type: "uint256"
},
{
internalType: "uint256",
name: "deadline",
type: "uint256"
},
{
internalType: "uint8",
name: "v",
type: "uint8"
},
{
internalType: "bytes32",
name: "r",
type: "bytes32"
},
{
internalType: "bytes32",
name: "s",
type: "bytes32"
}
],
name: "permit",
outputs: [
],
payable: false,
stateMutability: "nonpayable",
type: "function"
},
{
constant: true,
inputs: [
],
name: "price0CumulativeLast",
outputs: [
{
internalType: "uint256",
name: "",
type: "uint256"
}
],
payable: false,
stateMutability: "view",
type: "function"
},
{
constant: true,
inputs: [
],
name: "price1CumulativeLast",
outputs: [
{
internalType: "uint256",
name: "",
type: "uint256"
}
],
payable: false,
stateMutability: "view",
type: "function"
},
{
constant: false,
inputs: [
{
internalType: "address",
name: "to",
type: "address"
}
],
name: "skim",
outputs: [
],
payable: false,
stateMutability: "nonpayable",
type: "function"
},
{
constant: false,
inputs: [
{
internalType: "uint256",
name: "amount0Out",
type: "uint256"
},
{
internalType: "uint256",
name: "amount1Out",
type: "uint256"
},
{
internalType: "address",
name: "to",
type: "address"
},
{
internalType: "bytes",
name: "data",
type: "bytes"
}
],
name: "swap",
outputs: [
],
payable: false,
stateMutability: "nonpayable",
type: "function"
},
{
constant: true,
inputs: [
],
name: "symbol",
outputs: [
{
internalType: "string",
name: "",
type: "string"
}
],
payable: false,
stateMutability: "view",
type: "function"
},
{
constant: false,
inputs: [
],
name: "sync",
outputs: [
],
payable: false,
stateMutability: "nonpayable",
type: "function"
},
{
constant: true,
inputs: [
],
name: "token0",
outputs: [
{
internalType: "address",
name: "",
type: "address"
}
],
payable: false,
stateMutability: "view",
type: "function"
},
{
constant: true,
inputs: [
],
name: "token1",
outputs: [
{
internalType: "address",
name: "",
type: "address"
}
],
payable: false,
stateMutability: "view",
type: "function"
},
{
constant: true,
inputs: [
],
name: "totalSupply",
outputs: [
{
internalType: "uint256",
name: "",
type: "uint256"
}
],
payable: false,
stateMutability: "view",
type: "function"
},
{
constant: false,
inputs: [
{
internalType: "address",
name: "to",
type: "address"
},
{
internalType: "uint256",
name: "value",
type: "uint256"
}
],
name: "transfer",
outputs: [
{
internalType: "bool",
name: "",
type: "bool"
}
],
payable: false,
stateMutability: "nonpayable",
type: "function"
},
{
constant: false,
inputs: [
{
internalType: "address",
name: "from",
type: "address"
},
{
internalType: "address",
name: "to",
type: "address"
},
{
internalType: "uint256",
name: "value",
type: "uint256"
}
],
name: "transferFrom",
outputs: [
{
internalType: "bool",
name: "",
type: "bool"
}
],
payable: false,
stateMutability: "nonpayable",
type: "function"
}
];
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