@uniswap/sdk-core - npm Package Compare versions

Comparing version 2.0.5 to 3.0.0-alpha.0

dist/entities/ether.d.ts

 import { BaseCurrency } from './baseCurrency';
+/**
+ * Represents the currency Ether
+ */
 export declare class Ether extends BaseCurrency {
@@ -6,6 +9,11 @@ readonly isEther: true;
     /**
-     * The only instance of the base class `Currency`.
+     * Only called once by this class
+     * @protected
      */
+    protected constructor();
+    /**
+     * The only instance of the class `Ether`.
+     */
     static readonly ETHER: Ether;
 }
 export declare const ETHER: Ether;

dist/entities/fractions/currencyAmount.d.ts

 import JSBI from 'jsbi';
 import { Currency } from '../currency';
 import { Ether } from '../ether';
+import { Fraction } from './fraction';
 import { BigintIsh, Rounding } from '../../constants';
-import Fraction from './fraction';
-export default class CurrencyAmount<T extends Currency> extends Fraction {
+export declare class CurrencyAmount<T extends Currency> extends Fraction {
     readonly currency: T;
+    readonly decimalScale: JSBI;
     /**
+     * Returns a new currency amount instance from the
+     * @param currency the currency in the amount
+     * @param rawAmount the raw token or ether amount
+     */
+    static fromRawAmount<T extends Currency>(currency: T, rawAmount: BigintIsh): CurrencyAmount<T>;
+    /**
+     * Construct a currency amount with a denominator that is not equal to 1
+     * @param currency the currency
+     * @param numerator the numerator of the fractional token amount
+     * @param denominator the denominator of the fractional token amount
+     */
+    static fromFractionalAmount<T extends Currency>(currency: T, numerator: BigintIsh, denominator: BigintIsh): CurrencyAmount<T>;
+    /**
      * Helper that calls the constructor with the ETHER currency
-     * @param amount ether amount in wei
+     * @param rawAmount ether amount in wei
      */
-    static ether(amount: BigintIsh): CurrencyAmount<Ether>;
-    constructor(currency: T, amount: BigintIsh);
-    get raw(): JSBI;
+    static ether(rawAmount: BigintIsh): CurrencyAmount<Ether>;
+    protected constructor(currency: T, numerator: BigintIsh, denominator?: BigintIsh);
     add(other: CurrencyAmount<T>): CurrencyAmount<T>;
     subtract(other: CurrencyAmount<T>): CurrencyAmount<T>;
+    multiply(other: Fraction | BigintIsh): CurrencyAmount<T>;
+    divide(other: Fraction | BigintIsh): CurrencyAmount<T>;
     toSignificant(significantDigits?: number, format?: object, rounding?: Rounding): string;
@@ -18,0 +33,0 @@ toFixed(decimalPlaces?: number, format?: object, rounding?: Rounding): string;

dist/entities/fractions/fraction.d.ts

 import JSBI from 'jsbi';
 import { BigintIsh, Rounding } from '../../constants';
-export default class Fraction {
+export declare class Fraction {
     readonly numerator: JSBI;
@@ -5,0 +5,0 @@ readonly denominator: JSBI;

dist/entities/fractions/index.d.ts

@@ -1,5 +0,4 @@
-import Fraction from './fraction';
-import Percent from './percent';
-import CurrencyAmount from './currencyAmount';
-import Price from './price';
-export { Fraction, Percent, CurrencyAmount, Price };
+export { CurrencyAmount } from './currencyAmount';
+export { Fraction } from './fraction';
+export { Percent } from './percent';
+export { Price } from './price';

dist/entities/fractions/percent.d.ts

 import { BigintIsh, Rounding } from '../../constants';
-import Fraction from './fraction';
-export default class Percent extends Fraction {
+import { Fraction } from './fraction';
+export declare class Percent extends Fraction {
     /**
@@ -5,0 +5,0 @@ * This boolean prevents a fraction from being interpreted as a Percent

dist/entities/fractions/price.d.ts

 import { BigintIsh, Rounding } from '../../constants';
 import { Currency } from '../currency';
-import Fraction from './fraction';
-import CurrencyAmount from './currencyAmount';
-export default class Price<TBase extends Currency, TQuote extends Currency> extends Fraction {
+import { Fraction } from './fraction';
+import { CurrencyAmount } from './currencyAmount';
+export declare class Price<TBase extends Currency, TQuote extends Currency> extends Fraction {
     readonly baseCurrency: TBase;
@@ -10,9 +10,23 @@ readonly quoteCurrency: TQuote;
     constructor(baseCurrency: TBase, quoteCurrency: TQuote, denominator: BigintIsh, numerator: BigintIsh);
-    get raw(): Fraction;
-    get adjusted(): Fraction;
+    /**
+     * Flip the price, switching the base and quote currency
+     */
     invert(): Price<TQuote, TBase>;
+    /**
+     * Multiply the price by another price, returning a new price. The other price must have the same base currency as this price's quote currency
+     * @param other the other price
+     */
     multiply<TOtherQuote extends Currency>(other: Price<TQuote, TOtherQuote>): Price<TBase, TOtherQuote>;
+    /**
+     * Return the amount of quote currency corresponding to a given amount of the base currency
+     * @param currencyAmount the amount of base currency to quote against the price
+     */
     quote(currencyAmount: CurrencyAmount<TBase>): CurrencyAmount<TQuote>;
+    /**
+     * Get the value scaled by decimals for formatting
+     * @private
+     */
+    private get adjustedForDecimals();
     toSignificant(significantDigits?: number, format?: object, rounding?: Rounding): string;
     toFixed(decimalPlaces?: number, format?: object, rounding?: Rounding): string;
 }

dist/entities/index.d.ts

@@ -0,4 +1,4 @@
+export * from './fractions';
+export * from './currency';
+export * from './ether';
 export * from './token';
-export * from './ether';
-export * from './currency';
-export * from './fractions';

dist/sdk-core.cjs.development.js

@@ -9,6 +9,6 @@ 'use strict';
 var invariant = _interopDefault(require('tiny-invariant'));
-var address = require('@ethersproject/address');
 var _Decimal = _interopDefault(require('decimal.js-light'));
 var _Big = _interopDefault(require('big.js'));
 var toFormat = _interopDefault(require('toformat'));
+var address = require('@ethersproject/address');
 
@@ -59,11 +59,13 @@ (function (ChainId) {
 /**
- * Validates an address and returns the parsed (checksummed) version of that address
- * @param address the unchecksummed hex address
+ * Compares two currencies for equality
  */
-
-function validateAndParseAddress(address$1) {
-  try {
-    return address.getAddress(address$1);
-  } catch (error) {
-    throw new Error(address$1 + " is not a valid address.");
+function currencyEquals(currencyA, currencyB) {
+  if (currencyA.isToken && currencyB.isToken) {
+    return currencyA.equals(currencyB);
+  } else if (currencyA.isToken) {
+    return false;
+  } else if (currencyB.isToken) {
+    return false;
+  } else {
+    return currencyA.isEther === currencyB.isEther;
   }
@@ -92,61 +94,17 @@ }
 
-var _WETH;
 /**
- * Represents an ERC20 token with a unique address and some metadata.
+ * Represents the currency Ether
  */
 
-var Token = /*#__PURE__*/function (_BaseCurrency) {
-  _inheritsLoose(Token, _BaseCurrency);
+var Ether = /*#__PURE__*/function (_BaseCurrency) {
+  _inheritsLoose(Ether, _BaseCurrency);
 
-  function Token(chainId, address, decimals, symbol, name) {
-    var _this;
-
-    _this = _BaseCurrency.call(this, decimals, symbol, name) || this;
-    _this.isEther = false;
-    _this.isToken = true;
-    _this.chainId = chainId;
-    _this.address = validateAndParseAddress(address);
-    return _this;
-  }
   /**
-   * Returns true if the two tokens are equivalent, i.e. have the same chainId and address.
-   * @param other other token to compare
+   * Only called once by this class
+   * @protected
    */
-
-
-  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;
-}(BaseCurrency);
-var WETH9 = (_WETH = {}, _WETH[exports.ChainId.MAINNET] = /*#__PURE__*/new Token(exports.ChainId.MAINNET, '0xC02aaA39b223FE8D0A0e5C4F27eAD9083C756Cc2', 18, 'WETH9', 'Wrapped Ether'), _WETH[exports.ChainId.ROPSTEN] = /*#__PURE__*/new Token(exports.ChainId.ROPSTEN, '0xc778417E063141139Fce010982780140Aa0cD5Ab', 18, 'WETH9', 'Wrapped Ether'), _WETH[exports.ChainId.RINKEBY] = /*#__PURE__*/new Token(exports.ChainId.RINKEBY, '0xc778417E063141139Fce010982780140Aa0cD5Ab', 18, 'WETH9', 'Wrapped Ether'), _WETH[exports.ChainId.GÖRLI] = /*#__PURE__*/new Token(exports.ChainId.GÖRLI, '0xB4FBF271143F4FBf7B91A5ded31805e42b2208d6', 18, 'WETH9', 'Wrapped Ether'), _WETH[exports.ChainId.KOVAN] = /*#__PURE__*/new Token(exports.ChainId.KOVAN, '0xd0A1E359811322d97991E03f863a0C30C2cF029C', 18, 'WETH9', 'Wrapped Ether'), _WETH);
-
-var Ether = /*#__PURE__*/function (_BaseCurrency) {
-  _inheritsLoose(Ether, _BaseCurrency);
-
   function Ether() {
     var _this;
 
-    _this = _BaseCurrency.apply(this, arguments) || this;
+    _this = _BaseCurrency.call(this, 18, 'ETH', 'Ether') || this;
     _this.isEther = true;
@@ -160,6 +118,6 @@ _this.isToken = false;
 /**
- * The only instance of the base class `Currency`.
+ * The only instance of the class `Ether`.
  */
 
-Ether.ETHER = /*#__PURE__*/new Ether(18, 'ETH', 'Ether');
+Ether.ETHER = /*#__PURE__*/new Ether();
 var ETHER = Ether.ETHER;
@@ -172,3 +130,2 @@
 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 () {
@@ -291,4 +248,121 @@ function Fraction(numerator, denominator) {
 
-var _100_PERCENT = /*#__PURE__*/new Fraction( /*#__PURE__*/JSBI.BigInt(100));
+var Big$1 = /*#__PURE__*/toFormat(_Big);
+var CurrencyAmount = /*#__PURE__*/function (_Fraction) {
+  _inheritsLoose(CurrencyAmount, _Fraction);
 
+  function CurrencyAmount(currency, numerator, denominator) {
+    var _this;
+
+    _this = _Fraction.call(this, numerator, denominator) || this;
+    !JSBI.lessThanOrEqual(_this.quotient, MaxUint256) ?  invariant(false, 'AMOUNT')  : void 0;
+    _this.currency = currency;
+    _this.decimalScale = JSBI.exponentiate(JSBI.BigInt(10), JSBI.BigInt(currency.decimals));
+    return _this;
+  }
+  /**
+   * Returns a new currency amount instance from the
+   * @param currency the currency in the amount
+   * @param rawAmount the raw token or ether amount
+   */
+
+
+  CurrencyAmount.fromRawAmount = function fromRawAmount(currency, rawAmount) {
+    return new CurrencyAmount(currency, rawAmount);
+  }
+  /**
+   * Construct a currency amount with a denominator that is not equal to 1
+   * @param currency the currency
+   * @param numerator the numerator of the fractional token amount
+   * @param denominator the denominator of the fractional token amount
+   */
+  ;
+
+  CurrencyAmount.fromFractionalAmount = function fromFractionalAmount(currency, numerator, denominator) {
+    return new CurrencyAmount(currency, numerator, denominator);
+  }
+  /**
+   * Helper that calls the constructor with the ETHER currency
+   * @param rawAmount ether amount in wei
+   */
+  ;
+
+  CurrencyAmount.ether = function ether(rawAmount) {
+    return CurrencyAmount.fromRawAmount(Ether.ETHER, rawAmount);
+  };
+
+  var _proto = CurrencyAmount.prototype;
+
+  _proto.add = function add(other) {
+    !currencyEquals(this.currency, other.currency) ?  invariant(false, 'CURRENCY')  : void 0;
+
+    var added = _Fraction.prototype.add.call(this, other);
+
+    return CurrencyAmount.fromFractionalAmount(this.currency, added.numerator, added.denominator);
+  };
+
+  _proto.subtract = function subtract(other) {
+    !currencyEquals(this.currency, other.currency) ?  invariant(false, 'CURRENCY')  : void 0;
+
+    var subtracted = _Fraction.prototype.subtract.call(this, other);
+
+    return CurrencyAmount.fromFractionalAmount(this.currency, subtracted.numerator, subtracted.denominator);
+  };
+
+  _proto.multiply = function multiply(other) {
+    var multiplied = _Fraction.prototype.multiply.call(this, other);
+
+    return CurrencyAmount.fromFractionalAmount(this.currency, multiplied.numerator, multiplied.denominator);
+  };
+
+  _proto.divide = function divide(other) {
+    var divided = _Fraction.prototype.divide.call(this, other);
+
+    return CurrencyAmount.fromFractionalAmount(this.currency, divided.numerator, divided.denominator);
+  };
+
+  _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.divide.call(this, this.decimalScale).toSignificant(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.divide.call(this, this.decimalScale).toFixed(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.quotient.toString()).div(this.decimalScale.toString()).toFormat(format);
+  };
+
+  return CurrencyAmount;
+}(Fraction);
+
+var ONE_HUNDRED_PERCENT = /*#__PURE__*/new Fraction( /*#__PURE__*/JSBI.BigInt(100));
+/**
+ * Converts a fraction to a percent
+ * @param fraction the fraction to convert
+ */
+
 function toPercent(fraction) {
@@ -336,3 +410,3 @@ return new Percent(fraction.numerator, fraction.denominator);
 
-    return this.multiply(_100_PERCENT).toSignificant(significantDigits, format, rounding);
+    return _Fraction.prototype.multiply.call(this, ONE_HUNDRED_PERCENT).toSignificant(significantDigits, format, rounding);
   };
@@ -345,3 +419,3 @@
 
-    return this.multiply(_100_PERCENT).toFixed(decimalPlaces, format, rounding);
+    return _Fraction.prototype.multiply.call(this, ONE_HUNDRED_PERCENT).toFixed(decimalPlaces, format, rounding);
   };
@@ -352,2 +426,162 @@
 
+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(JSBI.BigInt(10), JSBI.BigInt(baseCurrency.decimals)), JSBI.exponentiate(JSBI.BigInt(10), JSBI.BigInt(quoteCurrency.decimals)));
+    return _this;
+  }
+  /**
+   * Flip the price, switching the base and quote currency
+   */
+
+
+  var _proto = Price.prototype;
+
+  _proto.invert = function invert() {
+    return new Price(this.quoteCurrency, this.baseCurrency, this.numerator, this.denominator);
+  }
+  /**
+   * Multiply the price by another price, returning a new price. The other price must have the same base currency as this price's quote currency
+   * @param other the other price
+   */
+  ;
+
+  _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);
+  }
+  /**
+   * Return the amount of quote currency corresponding to a given amount of the base currency
+   * @param currencyAmount the amount of base currency to quote against the price
+   */
+  ;
+
+  _proto.quote = function quote(currencyAmount) {
+    !currencyEquals(currencyAmount.currency, this.baseCurrency) ?  invariant(false, 'TOKEN')  : void 0;
+
+    var result = _Fraction.prototype.multiply.call(this, currencyAmount);
+
+    return CurrencyAmount.fromFractionalAmount(this.quoteCurrency, result.numerator, result.denominator);
+  }
+  /**
+   * Get the value scaled by decimals for formatting
+   * @private
+   */
+  ;
+
+  _proto.toSignificant = function toSignificant(significantDigits, format, rounding) {
+    if (significantDigits === void 0) {
+      significantDigits = 6;
+    }
+
+    return this.adjustedForDecimals.toSignificant(significantDigits, format, rounding);
+  };
+
+  _proto.toFixed = function toFixed(decimalPlaces, format, rounding) {
+    if (decimalPlaces === void 0) {
+      decimalPlaces = 4;
+    }
+
+    return this.adjustedForDecimals.toFixed(decimalPlaces, format, rounding);
+  };
+
+  _createClass(Price, [{
+    key: "adjustedForDecimals",
+    get: function get() {
+      return _Fraction.prototype.multiply.call(this, this.scalar);
+    }
+  }]);
+
+  return Price;
+}(Fraction);
+
+/**
+ * Validates an address and returns the parsed (checksummed) version of that address
+ * @param address the unchecksummed hex address
+ */
+
+function validateAndParseAddress(address$1) {
+  try {
+    return address.getAddress(address$1);
+  } catch (error) {
+    throw new Error(address$1 + " is not a valid address.");
+  }
+}
+
+var _WETH;
+/**
+ * Represents an ERC20 token with a unique address and some metadata.
+ */
+
+var Token = /*#__PURE__*/function (_BaseCurrency) {
+  _inheritsLoose(Token, _BaseCurrency);
+
+  function Token(chainId, address, decimals, symbol, name) {
+    var _this;
+
+    _this = _BaseCurrency.call(this, decimals, symbol, name) || this;
+    _this.isEther = false;
+    _this.isToken = true;
+    _this.chainId = chainId;
+    _this.address = validateAndParseAddress(address);
+    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;
+}(BaseCurrency);
+var WETH9 = (_WETH = {}, _WETH[exports.ChainId.MAINNET] = /*#__PURE__*/new Token(exports.ChainId.MAINNET, '0xC02aaA39b223FE8D0A0e5C4F27eAD9083C756Cc2', 18, 'WETH9', 'Wrapped Ether'), _WETH[exports.ChainId.ROPSTEN] = /*#__PURE__*/new Token(exports.ChainId.ROPSTEN, '0xc778417E063141139Fce010982780140Aa0cD5Ab', 18, 'WETH9', 'Wrapped Ether'), _WETH[exports.ChainId.RINKEBY] = /*#__PURE__*/new Token(exports.ChainId.RINKEBY, '0xc778417E063141139Fce010982780140Aa0cD5Ab', 18, 'WETH9', 'Wrapped Ether'), _WETH[exports.ChainId.GÖRLI] = /*#__PURE__*/new Token(exports.ChainId.GÖRLI, '0xB4FBF271143F4FBf7B91A5ded31805e42b2208d6', 18, 'WETH9', 'Wrapped Ether'), _WETH[exports.ChainId.KOVAN] = /*#__PURE__*/new Token(exports.ChainId.KOVAN, '0xd0A1E359811322d97991E03f863a0C30C2cF029C', 18, 'WETH9', 'Wrapped Ether'), _WETH);
+
+/**
+ * Returns the percent difference between the mid price and the execution price, i.e. price impact.
+ * @param midPrice mid price before the trade
+ * @param inputAmount the input amount of the trade
+ * @param outputAmount the output amount of the trade
+ */
+
+function computePriceImpact(midPrice, inputAmount, outputAmount) {
+  var quotedOutputAmount = midPrice.quote(inputAmount); // calculate price impact := (exactQuote - outputAmount) / exactQuote
+
+  var priceImpact = quotedOutputAmount.subtract(outputAmount).divide(quotedOutputAmount);
+  return new Percent(priceImpact.numerator, priceImpact.denominator);
+}
+
 // `maxSize` by removing the last item
@@ -418,17 +652,2 @@
 /**
- * Compares two currencies for equality
- */
-function currencyEquals(currencyA, currencyB) {
-  if (currencyA.isToken && currencyB.isToken) {
-    return currencyA.equals(currencyB);
-  } else if (currencyA.isToken) {
-    return false;
-  } else if (currencyB.isToken) {
-    return false;
-  } else {
-    return currencyA.isEther === currencyB.isEther;
-  }
-}
-
-/**
  * Given a currency which can be Ether or a token, return wrapped ether for ether and the token for the token
@@ -456,153 +675,5 @@ * @param currency the currency to wrap, if necessary
 function wrappedCurrencyAmount(currencyAmount, chainId) {
-  return new CurrencyAmount(wrappedCurrency(currencyAmount.currency, chainId), currencyAmount.raw);
+  return CurrencyAmount.fromFractionalAmount(wrappedCurrency(currencyAmount.currency, chainId), currencyAmount.numerator, currencyAmount.denominator);
 }
 
-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 = JSBI.BigInt(amount);
-    !JSBI.lessThanOrEqual(parsedAmount, MaxUint256) ?  invariant(false, 'AMOUNT')  : void 0;
-    _this = _Fraction.call(this, parsedAmount, JSBI.exponentiate(JSBI.BigInt(10), 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 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(JSBI.BigInt(10), JSBI.BigInt(baseCurrency.decimals)), JSBI.exponentiate(JSBI.BigInt(10), JSBI.BigInt(quoteCurrency.decimals)));
-    return _this;
-  }
-
-  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);
-  } // quotes with floor division
-  ;
-
-  _proto.quote = function quote(currencyAmount) {
-    !currencyEquals(currencyAmount.currency, this.baseCurrency) ?  invariant(false, 'TOKEN')  : void 0;
-    return new CurrencyAmount(this.quoteCurrency, _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);
-
 exports.CurrencyAmount = CurrencyAmount;
@@ -617,2 +688,3 @@ exports.ETHER = ETHER;
 exports.WETH9 = WETH9;
+exports.computePriceImpact = computePriceImpact;
 exports.currencyEquals = currencyEquals;
@@ -619,0 +691,0 @@ exports.sortedInsert = sortedInsert;

dist/sdk-core.cjs.production.min.js

@@ -1,2 +0,2 @@
-"use strict";function t(t){return t&&"object"==typeof t&&"default"in t?t.default:t}Object.defineProperty(exports,"__esModule",{value:!0});var n,r,e,i=t(require("jsbi")),o=t(require("tiny-invariant")),a=require("@ethersproject/address"),u=t(require("decimal.js-light")),s=t(require("big.js")),d=t(require("toformat"));(n=exports.ChainId||(exports.ChainId={}))[n.MAINNET=1]="MAINNET",n[n.ROPSTEN=3]="ROPSTEN",n[n.RINKEBY=4]="RINKEBY",n[n["GÖRLI"]=5]="GÖRLI",n[n.KOVAN=42]="KOVAN",(r=exports.TradeType||(exports.TradeType={}))[r.EXACT_INPUT=0]="EXACT_INPUT",r[r.EXACT_OUTPUT=1]="EXACT_OUTPUT",(e=exports.Rounding||(exports.Rounding={}))[e.ROUND_DOWN=0]="ROUND_DOWN",e[e.ROUND_HALF_UP=1]="ROUND_HALF_UP",e[e.ROUND_UP=2]="ROUND_UP";var c=i.BigInt("0xffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff");function f(t,n){for(var r=0;r<n.length;r++){var e=n[r];e.enumerable=e.enumerable||!1,e.configurable=!0,"value"in e&&(e.writable=!0),Object.defineProperty(t,e.key,e)}}function h(t,n,r){return n&&f(t.prototype,n),r&&f(t,r),t}function p(t,n){t.prototype=Object.create(n.prototype),t.prototype.constructor=t,t.__proto__=n}function l(t){try{return a.getAddress(t)}catch(n){throw new Error(t+" is not a valid address.")}}var m,y=function(t,n,r){t>=0&&t<255&&Number.isInteger(t)||o(!1),this.decimals=t,this.symbol=n,this.name=r},g=function(t){function n(n,r,e,i,o){var a;return(a=t.call(this,e,i,o)||this).isEther=!1,a.isToken=!0,a.chainId=n,a.address=l(r),a}p(n,t);var r=n.prototype;return r.equals=function(t){return this===t||this.chainId===t.chainId&&this.address===t.address},r.sortsBefore=function(t){return this.chainId!==t.chainId&&o(!1),this.address===t.address&&o(!1),this.address.toLowerCase()<t.address.toLowerCase()},n}(y),v=((m={})[exports.ChainId.MAINNET]=new g(exports.ChainId.MAINNET,"0xC02aaA39b223FE8D0A0e5C4F27eAD9083C756Cc2",18,"WETH9","Wrapped Ether"),m[exports.ChainId.ROPSTEN]=new g(exports.ChainId.ROPSTEN,"0xc778417E063141139Fce010982780140Aa0cD5Ab",18,"WETH9","Wrapped Ether"),m[exports.ChainId.RINKEBY]=new g(exports.ChainId.RINKEBY,"0xc778417E063141139Fce010982780140Aa0cD5Ab",18,"WETH9","Wrapped Ether"),m[exports.ChainId.GÖRLI]=new g(exports.ChainId.GÖRLI,"0xB4FBF271143F4FBf7B91A5ded31805e42b2208d6",18,"WETH9","Wrapped Ether"),m[exports.ChainId.KOVAN]=new g(exports.ChainId.KOVAN,"0xd0A1E359811322d97991E03f863a0C30C2cF029C",18,"WETH9","Wrapped Ether"),m),I=function(t){function n(){var n;return(n=t.apply(this,arguments)||this).isEther=!0,n.isToken=!1,n}return p(n,t),n}(y);I.ETHER=new I(18,"ETH","Ether");var x,E,N=I.ETHER,w=d(u),R=d(s),T=((x={})[exports.Rounding.ROUND_DOWN]=w.ROUND_DOWN,x[exports.Rounding.ROUND_HALF_UP]=w.ROUND_HALF_UP,x[exports.Rounding.ROUND_UP]=w.ROUND_UP,x),O=((E={})[exports.Rounding.ROUND_DOWN]=0,E[exports.Rounding.ROUND_HALF_UP]=1,E[exports.Rounding.ROUND_UP]=3,E),C=function(){function t(t,n){void 0===n&&(n=i.BigInt(1)),this.numerator=i.BigInt(t),this.denominator=i.BigInt(n)}var n=t.prototype;return n.invert=function(){return new t(this.denominator,this.numerator)},n.add=function(n){var r=n instanceof t?n:new t(i.BigInt(n));return i.equal(this.denominator,r.denominator)?new t(i.add(this.numerator,r.numerator),this.denominator):new t(i.add(i.multiply(this.numerator,r.denominator),i.multiply(r.numerator,this.denominator)),i.multiply(this.denominator,r.denominator))},n.subtract=function(n){var r=n instanceof t?n:new t(i.BigInt(n));return i.equal(this.denominator,r.denominator)?new t(i.subtract(this.numerator,r.numerator),this.denominator):new t(i.subtract(i.multiply(this.numerator,r.denominator),i.multiply(r.numerator,this.denominator)),i.multiply(this.denominator,r.denominator))},n.lessThan=function(n){var r=n instanceof t?n:new t(i.BigInt(n));return i.lessThan(i.multiply(this.numerator,r.denominator),i.multiply(r.numerator,this.denominator))},n.equalTo=function(n){var r=n instanceof t?n:new t(i.BigInt(n));return i.equal(i.multiply(this.numerator,r.denominator),i.multiply(r.numerator,this.denominator))},n.greaterThan=function(n){var r=n instanceof t?n:new t(i.BigInt(n));return i.greaterThan(i.multiply(this.numerator,r.denominator),i.multiply(r.numerator,this.denominator))},n.multiply=function(n){var r=n instanceof t?n:new t(i.BigInt(n));return new t(i.multiply(this.numerator,r.numerator),i.multiply(this.denominator,r.denominator))},n.divide=function(n){var r=n instanceof t?n:new t(i.BigInt(n));return new t(i.multiply(this.numerator,r.denominator),i.multiply(this.denominator,r.numerator))},n.toSignificant=function(t,n,r){void 0===n&&(n={groupSeparator:""}),void 0===r&&(r=exports.Rounding.ROUND_HALF_UP),Number.isInteger(t)||o(!1),t>0||o(!1),w.set({precision:t+1,rounding:T[r]});var e=new w(this.numerator.toString()).div(this.denominator.toString()).toSignificantDigits(t);return e.toFormat(e.decimalPlaces(),n)},n.toFixed=function(t,n,r){return void 0===n&&(n={groupSeparator:""}),void 0===r&&(r=exports.Rounding.ROUND_HALF_UP),Number.isInteger(t)||o(!1),t>=0||o(!1),R.DP=t,R.RM=O[r],new R(this.numerator.toString()).div(this.denominator.toString()).toFormat(t,n)},h(t,[{key:"quotient",get:function(){return i.divide(this.numerator,this.denominator)}},{key:"remainder",get:function(){return new t(i.remainder(this.numerator,this.denominator),this.denominator)}}]),t}(),U=new C(i.BigInt(100));function _(t){return new A(t.numerator,t.denominator)}var A=function(t){function n(){var n;return(n=t.apply(this,arguments)||this).isPercent=!0,n}p(n,t);var r=n.prototype;return r.add=function(n){return _(t.prototype.add.call(this,n))},r.subtract=function(n){return _(t.prototype.subtract.call(this,n))},r.multiply=function(n){return _(t.prototype.multiply.call(this,n))},r.divide=function(n){return _(t.prototype.divide.call(this,n))},r.toSignificant=function(t,n,r){return void 0===t&&(t=5),this.multiply(U).toSignificant(t,n,r)},r.toFixed=function(t,n,r){return void 0===t&&(t=2),this.multiply(U).toFixed(t,n,r)},n}(C),B=i.BigInt(Number.MAX_SAFE_INTEGER),D=i.BigInt(0),b=i.BigInt(1),P=i.BigInt(2);function F(t,n){return t.isToken&&n.isToken?t.equals(n):!t.isToken&&!n.isToken&&t.isEther===n.isEther}function q(t,n){if(t.isToken)return t.chainId!==n&&o(!1),t;if(t.isEther)return v[n];throw new Error("CURRENCY")}var S=d(s),W=function(t){function n(n,r){var e,a=i.BigInt(r);return i.lessThanOrEqual(a,c)||o(!1),(e=t.call(this,a,i.exponentiate(i.BigInt(10),i.BigInt(n.decimals)))||this).currency=n,e}p(n,t),n.ether=function(t){return new n(N,t)};var r=n.prototype;return r.add=function(t){return F(this.currency,t.currency)||o(!1),new n(this.currency,i.add(this.raw,t.raw))},r.subtract=function(t){return F(this.currency,t.currency)||o(!1),new n(this.currency,i.subtract(this.raw,t.raw))},r.toSignificant=function(n,r,e){return void 0===n&&(n=6),void 0===e&&(e=exports.Rounding.ROUND_DOWN),t.prototype.toSignificant.call(this,n,r,e)},r.toFixed=function(n,r,e){return void 0===n&&(n=this.currency.decimals),void 0===e&&(e=exports.Rounding.ROUND_DOWN),n<=this.currency.decimals||o(!1),t.prototype.toFixed.call(this,n,r,e)},r.toExact=function(t){return void 0===t&&(t={groupSeparator:""}),S.DP=this.currency.decimals,new S(this.numerator.toString()).div(this.denominator.toString()).toFormat(t)},h(n,[{key:"raw",get:function(){return this.numerator}}]),n}(C),H=function(t){function n(n,r,e,o){var a;return(a=t.call(this,o,e)||this).baseCurrency=n,a.quoteCurrency=r,a.scalar=new C(i.exponentiate(i.BigInt(10),i.BigInt(n.decimals)),i.exponentiate(i.BigInt(10),i.BigInt(r.decimals))),a}p(n,t);var r=n.prototype;return r.invert=function(){return new n(this.quoteCurrency,this.baseCurrency,this.numerator,this.denominator)},r.multiply=function(r){F(this.quoteCurrency,r.baseCurrency)||o(!1);var e=t.prototype.multiply.call(this,r);return new n(this.baseCurrency,r.quoteCurrency,e.denominator,e.numerator)},r.quote=function(n){return F(n.currency,this.baseCurrency)||o(!1),new W(this.quoteCurrency,t.prototype.multiply.call(this,n.raw).quotient)},r.toSignificant=function(t,n,r){return void 0===t&&(t=6),this.adjusted.toSignificant(t,n,r)},r.toFixed=function(t,n,r){return void 0===t&&(t=4),this.adjusted.toFixed(t,n,r)},h(n,[{key:"raw",get:function(){return new C(this.numerator,this.denominator)}},{key:"adjusted",get:function(){return t.prototype.multiply.call(this,this.scalar)}}]),n}(C);exports.CurrencyAmount=W,exports.ETHER=N,exports.Ether=I,exports.Fraction=C,exports.MaxUint256=c,exports.Percent=A,exports.Price=H,exports.Token=g,exports.WETH9=v,exports.currencyEquals=F,exports.sortedInsert=function(t,n,r,e){if(r>0||o(!1),t.length<=r||o(!1),0===t.length)return t.push(n),null;var i=t.length===r;if(i&&e(t[t.length-1],n)<=0)return n;for(var a=0,u=t.length;a<u;){var s=a+u>>>1;e(t[s],n)<=0?a=s+1:u=s}return t.splice(a,0,n),i?t.pop():null},exports.sqrt=function(t){if(i.greaterThanOrEqual(t,D)||o(!1),i.lessThan(t,B))return i.BigInt(Math.floor(Math.sqrt(i.toNumber(t))));var n,r;for(n=t,r=i.add(i.divide(t,P),b);i.lessThan(r,n);)n=r,r=i.divide(i.add(i.divide(t,r),r),P);return n},exports.validateAndParseAddress=l,exports.wrappedCurrency=q,exports.wrappedCurrencyAmount=function(t,n){return new W(q(t.currency,n),t.raw)};
+"use strict";function t(t){return t&&"object"==typeof t&&"default"in t?t.default:t}Object.defineProperty(exports,"__esModule",{value:!0});var r,n,e,i=t(require("jsbi")),o=t(require("tiny-invariant")),a=t(require("decimal.js-light")),u=t(require("big.js")),s=t(require("toformat")),c=require("@ethersproject/address");(r=exports.ChainId||(exports.ChainId={}))[r.MAINNET=1]="MAINNET",r[r.ROPSTEN=3]="ROPSTEN",r[r.RINKEBY=4]="RINKEBY",r[r["GÖRLI"]=5]="GÖRLI",r[r.KOVAN=42]="KOVAN",(n=exports.TradeType||(exports.TradeType={}))[n.EXACT_INPUT=0]="EXACT_INPUT",n[n.EXACT_OUTPUT=1]="EXACT_OUTPUT",(e=exports.Rounding||(exports.Rounding={}))[e.ROUND_DOWN=0]="ROUND_DOWN",e[e.ROUND_HALF_UP=1]="ROUND_HALF_UP",e[e.ROUND_UP=2]="ROUND_UP";var d=i.BigInt("0xffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff");function f(t,r){for(var n=0;n<r.length;n++){var e=r[n];e.enumerable=e.enumerable||!1,e.configurable=!0,"value"in e&&(e.writable=!0),Object.defineProperty(t,e.key,e)}}function l(t,r,n){return r&&f(t.prototype,r),n&&f(t,n),t}function p(t,r){t.prototype=Object.create(r.prototype),t.prototype.constructor=t,t.__proto__=r}function m(t,r){return t.isToken&&r.isToken?t.equals(r):!t.isToken&&!r.isToken&&t.isEther===r.isEther}var h=function(t,r,n){t>=0&&t<255&&Number.isInteger(t)||o(!1),this.decimals=t,this.symbol=r,this.name=n},y=function(t){function r(){var r;return(r=t.call(this,18,"ETH","Ether")||this).isEther=!0,r.isToken=!1,r}return p(r,t),r}(h);y.ETHER=new y;var g,v,x=y.ETHER,I=s(a),E=s(u),N=((g={})[exports.Rounding.ROUND_DOWN]=I.ROUND_DOWN,g[exports.Rounding.ROUND_HALF_UP]=I.ROUND_HALF_UP,g[exports.Rounding.ROUND_UP]=I.ROUND_UP,g),R=((v={})[exports.Rounding.ROUND_DOWN]=0,v[exports.Rounding.ROUND_HALF_UP]=1,v[exports.Rounding.ROUND_UP]=3,v),T=function(){function t(t,r){void 0===r&&(r=i.BigInt(1)),this.numerator=i.BigInt(t),this.denominator=i.BigInt(r)}var r=t.prototype;return r.invert=function(){return new t(this.denominator,this.numerator)},r.add=function(r){var n=r instanceof t?r:new t(i.BigInt(r));return i.equal(this.denominator,n.denominator)?new t(i.add(this.numerator,n.numerator),this.denominator):new t(i.add(i.multiply(this.numerator,n.denominator),i.multiply(n.numerator,this.denominator)),i.multiply(this.denominator,n.denominator))},r.subtract=function(r){var n=r instanceof t?r:new t(i.BigInt(r));return i.equal(this.denominator,n.denominator)?new t(i.subtract(this.numerator,n.numerator),this.denominator):new t(i.subtract(i.multiply(this.numerator,n.denominator),i.multiply(n.numerator,this.denominator)),i.multiply(this.denominator,n.denominator))},r.lessThan=function(r){var n=r instanceof t?r:new t(i.BigInt(r));return i.lessThan(i.multiply(this.numerator,n.denominator),i.multiply(n.numerator,this.denominator))},r.equalTo=function(r){var n=r instanceof t?r:new t(i.BigInt(r));return i.equal(i.multiply(this.numerator,n.denominator),i.multiply(n.numerator,this.denominator))},r.greaterThan=function(r){var n=r instanceof t?r:new t(i.BigInt(r));return i.greaterThan(i.multiply(this.numerator,n.denominator),i.multiply(n.numerator,this.denominator))},r.multiply=function(r){var n=r instanceof t?r:new t(i.BigInt(r));return new t(i.multiply(this.numerator,n.numerator),i.multiply(this.denominator,n.denominator))},r.divide=function(r){var n=r instanceof t?r:new t(i.BigInt(r));return new t(i.multiply(this.numerator,n.denominator),i.multiply(this.denominator,n.numerator))},r.toSignificant=function(t,r,n){void 0===r&&(r={groupSeparator:""}),void 0===n&&(n=exports.Rounding.ROUND_HALF_UP),Number.isInteger(t)||o(!1),t>0||o(!1),I.set({precision:t+1,rounding:N[n]});var e=new I(this.numerator.toString()).div(this.denominator.toString()).toSignificantDigits(t);return e.toFormat(e.decimalPlaces(),r)},r.toFixed=function(t,r,n){return void 0===r&&(r={groupSeparator:""}),void 0===n&&(n=exports.Rounding.ROUND_HALF_UP),Number.isInteger(t)||o(!1),t>=0||o(!1),E.DP=t,E.RM=R[n],new E(this.numerator.toString()).div(this.denominator.toString()).toFormat(t,r)},l(t,[{key:"quotient",get:function(){return i.divide(this.numerator,this.denominator)}},{key:"remainder",get:function(){return new t(i.remainder(this.numerator,this.denominator),this.denominator)}}]),t}(),A=s(u),w=function(t){function r(r,n,e){var a;return a=t.call(this,n,e)||this,i.lessThanOrEqual(a.quotient,d)||o(!1),a.currency=r,a.decimalScale=i.exponentiate(i.BigInt(10),i.BigInt(r.decimals)),a}p(r,t),r.fromRawAmount=function(t,n){return new r(t,n)},r.fromFractionalAmount=function(t,n,e){return new r(t,n,e)},r.ether=function(t){return r.fromRawAmount(y.ETHER,t)};var n=r.prototype;return n.add=function(n){m(this.currency,n.currency)||o(!1);var e=t.prototype.add.call(this,n);return r.fromFractionalAmount(this.currency,e.numerator,e.denominator)},n.subtract=function(n){m(this.currency,n.currency)||o(!1);var e=t.prototype.subtract.call(this,n);return r.fromFractionalAmount(this.currency,e.numerator,e.denominator)},n.multiply=function(n){var e=t.prototype.multiply.call(this,n);return r.fromFractionalAmount(this.currency,e.numerator,e.denominator)},n.divide=function(n){var e=t.prototype.divide.call(this,n);return r.fromFractionalAmount(this.currency,e.numerator,e.denominator)},n.toSignificant=function(r,n,e){return void 0===r&&(r=6),void 0===e&&(e=exports.Rounding.ROUND_DOWN),t.prototype.divide.call(this,this.decimalScale).toSignificant(r,n,e)},n.toFixed=function(r,n,e){return void 0===r&&(r=this.currency.decimals),void 0===e&&(e=exports.Rounding.ROUND_DOWN),r<=this.currency.decimals||o(!1),t.prototype.divide.call(this,this.decimalScale).toFixed(r,n,e)},n.toExact=function(t){return void 0===t&&(t={groupSeparator:""}),A.DP=this.currency.decimals,new A(this.quotient.toString()).div(this.decimalScale.toString()).toFormat(t)},r}(T),O=new T(i.BigInt(100));function C(t){return new F(t.numerator,t.denominator)}var U,F=function(t){function r(){var r;return(r=t.apply(this,arguments)||this).isPercent=!0,r}p(r,t);var n=r.prototype;return n.add=function(r){return C(t.prototype.add.call(this,r))},n.subtract=function(r){return C(t.prototype.subtract.call(this,r))},n.multiply=function(r){return C(t.prototype.multiply.call(this,r))},n.divide=function(r){return C(t.prototype.divide.call(this,r))},n.toSignificant=function(r,n,e){return void 0===r&&(r=5),t.prototype.multiply.call(this,O).toSignificant(r,n,e)},n.toFixed=function(r,n,e){return void 0===r&&(r=2),t.prototype.multiply.call(this,O).toFixed(r,n,e)},r}(T),_=function(t){function r(r,n,e,o){var a;return(a=t.call(this,o,e)||this).baseCurrency=r,a.quoteCurrency=n,a.scalar=new T(i.exponentiate(i.BigInt(10),i.BigInt(r.decimals)),i.exponentiate(i.BigInt(10),i.BigInt(n.decimals))),a}p(r,t);var n=r.prototype;return n.invert=function(){return new r(this.quoteCurrency,this.baseCurrency,this.numerator,this.denominator)},n.multiply=function(n){m(this.quoteCurrency,n.baseCurrency)||o(!1);var e=t.prototype.multiply.call(this,n);return new r(this.baseCurrency,n.quoteCurrency,e.denominator,e.numerator)},n.quote=function(r){m(r.currency,this.baseCurrency)||o(!1);var n=t.prototype.multiply.call(this,r);return w.fromFractionalAmount(this.quoteCurrency,n.numerator,n.denominator)},n.toSignificant=function(t,r,n){return void 0===t&&(t=6),this.adjustedForDecimals.toSignificant(t,r,n)},n.toFixed=function(t,r,n){return void 0===t&&(t=4),this.adjustedForDecimals.toFixed(t,r,n)},l(r,[{key:"adjustedForDecimals",get:function(){return t.prototype.multiply.call(this,this.scalar)}}]),r}(T);function D(t){try{return c.getAddress(t)}catch(r){throw new Error(t+" is not a valid address.")}}var b=function(t){function r(r,n,e,i,o){var a;return(a=t.call(this,e,i,o)||this).isEther=!1,a.isToken=!0,a.chainId=r,a.address=D(n),a}p(r,t);var n=r.prototype;return n.equals=function(t){return this===t||this.chainId===t.chainId&&this.address===t.address},n.sortsBefore=function(t){return this.chainId!==t.chainId&&o(!1),this.address===t.address&&o(!1),this.address.toLowerCase()<t.address.toLowerCase()},r}(h),B=((U={})[exports.ChainId.MAINNET]=new b(exports.ChainId.MAINNET,"0xC02aaA39b223FE8D0A0e5C4F27eAD9083C756Cc2",18,"WETH9","Wrapped Ether"),U[exports.ChainId.ROPSTEN]=new b(exports.ChainId.ROPSTEN,"0xc778417E063141139Fce010982780140Aa0cD5Ab",18,"WETH9","Wrapped Ether"),U[exports.ChainId.RINKEBY]=new b(exports.ChainId.RINKEBY,"0xc778417E063141139Fce010982780140Aa0cD5Ab",18,"WETH9","Wrapped Ether"),U[exports.ChainId.GÖRLI]=new b(exports.ChainId.GÖRLI,"0xB4FBF271143F4FBf7B91A5ded31805e42b2208d6",18,"WETH9","Wrapped Ether"),U[exports.ChainId.KOVAN]=new b(exports.ChainId.KOVAN,"0xd0A1E359811322d97991E03f863a0C30C2cF029C",18,"WETH9","Wrapped Ether"),U),P=i.BigInt(Number.MAX_SAFE_INTEGER),q=i.BigInt(0),S=i.BigInt(1),H=i.BigInt(2);function W(t,r){if(t.isToken)return t.chainId!==r&&o(!1),t;if(t.isEther)return B[r];throw new Error("CURRENCY")}exports.CurrencyAmount=w,exports.ETHER=x,exports.Ether=y,exports.Fraction=T,exports.MaxUint256=d,exports.Percent=F,exports.Price=_,exports.Token=b,exports.WETH9=B,exports.computePriceImpact=function(t,r,n){var e=t.quote(r),i=e.subtract(n).divide(e);return new F(i.numerator,i.denominator)},exports.currencyEquals=m,exports.sortedInsert=function(t,r,n,e){if(n>0||o(!1),t.length<=n||o(!1),0===t.length)return t.push(r),null;var i=t.length===n;if(i&&e(t[t.length-1],r)<=0)return r;for(var a=0,u=t.length;a<u;){var s=a+u>>>1;e(t[s],r)<=0?a=s+1:u=s}return t.splice(a,0,r),i?t.pop():null},exports.sqrt=function(t){if(i.greaterThanOrEqual(t,q)||o(!1),i.lessThan(t,P))return i.BigInt(Math.floor(Math.sqrt(i.toNumber(t))));var r,n;for(r=t,n=i.add(i.divide(t,H),S);i.lessThan(n,r);)r=n,n=i.divide(i.add(i.divide(t,n),n),H);return r},exports.validateAndParseAddress=D,exports.wrappedCurrency=W,exports.wrappedCurrencyAmount=function(t,r){return w.fromFractionalAmount(W(t.currency,r),t.numerator,t.denominator)};
 //# sourceMappingURL=sdk-core.cjs.production.min.js.map

dist/sdk-core.esm.js

 import JSBI from 'jsbi';
 import invariant from 'tiny-invariant';
-import { getAddress } from '@ethersproject/address';
 import _Decimal from 'decimal.js-light';
 import _Big from 'big.js';
 import toFormat from 'toformat';
+import { getAddress } from '@ethersproject/address';
 
@@ -58,11 +58,13 @@ var ChainId;
 /**
- * Validates an address and returns the parsed (checksummed) version of that address
- * @param address the unchecksummed hex address
+ * Compares two currencies for equality
  */
-
-function validateAndParseAddress(address) {
-  try {
-    return getAddress(address);
-  } catch (error) {
-    throw new Error(address + " is not a valid address.");
+function currencyEquals(currencyA, currencyB) {
+  if (currencyA.isToken && currencyB.isToken) {
+    return currencyA.equals(currencyB);
+  } else if (currencyA.isToken) {
+    return false;
+  } else if (currencyB.isToken) {
+    return false;
+  } else {
+    return currencyA.isEther === currencyB.isEther;
   }
@@ -91,61 +93,17 @@ }
 
-var _WETH;
 /**
- * Represents an ERC20 token with a unique address and some metadata.
+ * Represents the currency Ether
  */
 
-var Token = /*#__PURE__*/function (_BaseCurrency) {
-  _inheritsLoose(Token, _BaseCurrency);
+var Ether = /*#__PURE__*/function (_BaseCurrency) {
+  _inheritsLoose(Ether, _BaseCurrency);
 
-  function Token(chainId, address, decimals, symbol, name) {
-    var _this;
-
-    _this = _BaseCurrency.call(this, decimals, symbol, name) || this;
-    _this.isEther = false;
-    _this.isToken = true;
-    _this.chainId = chainId;
-    _this.address = validateAndParseAddress(address);
-    return _this;
-  }
   /**
-   * Returns true if the two tokens are equivalent, i.e. have the same chainId and address.
-   * @param other other token to compare
+   * Only called once by this class
+   * @protected
    */
-
-
-  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) ? process.env.NODE_ENV !== "production" ? invariant(false, 'CHAIN_IDS') : invariant(false) : void 0;
-    !(this.address !== other.address) ? process.env.NODE_ENV !== "production" ? invariant(false, 'ADDRESSES') : invariant(false) : void 0;
-    return this.address.toLowerCase() < other.address.toLowerCase();
-  };
-
-  return Token;
-}(BaseCurrency);
-var WETH9 = (_WETH = {}, _WETH[ChainId.MAINNET] = /*#__PURE__*/new Token(ChainId.MAINNET, '0xC02aaA39b223FE8D0A0e5C4F27eAD9083C756Cc2', 18, 'WETH9', 'Wrapped Ether'), _WETH[ChainId.ROPSTEN] = /*#__PURE__*/new Token(ChainId.ROPSTEN, '0xc778417E063141139Fce010982780140Aa0cD5Ab', 18, 'WETH9', 'Wrapped Ether'), _WETH[ChainId.RINKEBY] = /*#__PURE__*/new Token(ChainId.RINKEBY, '0xc778417E063141139Fce010982780140Aa0cD5Ab', 18, 'WETH9', 'Wrapped Ether'), _WETH[ChainId.GÖRLI] = /*#__PURE__*/new Token(ChainId.GÖRLI, '0xB4FBF271143F4FBf7B91A5ded31805e42b2208d6', 18, 'WETH9', 'Wrapped Ether'), _WETH[ChainId.KOVAN] = /*#__PURE__*/new Token(ChainId.KOVAN, '0xd0A1E359811322d97991E03f863a0C30C2cF029C', 18, 'WETH9', 'Wrapped Ether'), _WETH);
-
-var Ether = /*#__PURE__*/function (_BaseCurrency) {
-  _inheritsLoose(Ether, _BaseCurrency);
-
   function Ether() {
     var _this;
 
-    _this = _BaseCurrency.apply(this, arguments) || this;
+    _this = _BaseCurrency.call(this, 18, 'ETH', 'Ether') || this;
     _this.isEther = true;
@@ -159,6 +117,6 @@ _this.isToken = false;
 /**
- * The only instance of the base class `Currency`.
+ * The only instance of the class `Ether`.
  */
 
-Ether.ETHER = /*#__PURE__*/new Ether(18, 'ETH', 'Ether');
+Ether.ETHER = /*#__PURE__*/new Ether();
 var ETHER = Ether.ETHER;
@@ -171,3 +129,2 @@
 var toFixedRounding = (_toFixedRounding = {}, _toFixedRounding[Rounding.ROUND_DOWN] = 0, _toFixedRounding[Rounding.ROUND_HALF_UP] = 1, _toFixedRounding[Rounding.ROUND_UP] = 3, _toFixedRounding);
-
 var Fraction = /*#__PURE__*/function () {
@@ -290,4 +247,121 @@ function Fraction(numerator, denominator) {
 
-var _100_PERCENT = /*#__PURE__*/new Fraction( /*#__PURE__*/JSBI.BigInt(100));
+var Big$1 = /*#__PURE__*/toFormat(_Big);
+var CurrencyAmount = /*#__PURE__*/function (_Fraction) {
+  _inheritsLoose(CurrencyAmount, _Fraction);
 
+  function CurrencyAmount(currency, numerator, denominator) {
+    var _this;
+
+    _this = _Fraction.call(this, numerator, denominator) || this;
+    !JSBI.lessThanOrEqual(_this.quotient, MaxUint256) ? process.env.NODE_ENV !== "production" ? invariant(false, 'AMOUNT') : invariant(false) : void 0;
+    _this.currency = currency;
+    _this.decimalScale = JSBI.exponentiate(JSBI.BigInt(10), JSBI.BigInt(currency.decimals));
+    return _this;
+  }
+  /**
+   * Returns a new currency amount instance from the
+   * @param currency the currency in the amount
+   * @param rawAmount the raw token or ether amount
+   */
+
+
+  CurrencyAmount.fromRawAmount = function fromRawAmount(currency, rawAmount) {
+    return new CurrencyAmount(currency, rawAmount);
+  }
+  /**
+   * Construct a currency amount with a denominator that is not equal to 1
+   * @param currency the currency
+   * @param numerator the numerator of the fractional token amount
+   * @param denominator the denominator of the fractional token amount
+   */
+  ;
+
+  CurrencyAmount.fromFractionalAmount = function fromFractionalAmount(currency, numerator, denominator) {
+    return new CurrencyAmount(currency, numerator, denominator);
+  }
+  /**
+   * Helper that calls the constructor with the ETHER currency
+   * @param rawAmount ether amount in wei
+   */
+  ;
+
+  CurrencyAmount.ether = function ether(rawAmount) {
+    return CurrencyAmount.fromRawAmount(Ether.ETHER, rawAmount);
+  };
+
+  var _proto = CurrencyAmount.prototype;
+
+  _proto.add = function add(other) {
+    !currencyEquals(this.currency, other.currency) ? process.env.NODE_ENV !== "production" ? invariant(false, 'CURRENCY') : invariant(false) : void 0;
+
+    var added = _Fraction.prototype.add.call(this, other);
+
+    return CurrencyAmount.fromFractionalAmount(this.currency, added.numerator, added.denominator);
+  };
+
+  _proto.subtract = function subtract(other) {
+    !currencyEquals(this.currency, other.currency) ? process.env.NODE_ENV !== "production" ? invariant(false, 'CURRENCY') : invariant(false) : void 0;
+
+    var subtracted = _Fraction.prototype.subtract.call(this, other);
+
+    return CurrencyAmount.fromFractionalAmount(this.currency, subtracted.numerator, subtracted.denominator);
+  };
+
+  _proto.multiply = function multiply(other) {
+    var multiplied = _Fraction.prototype.multiply.call(this, other);
+
+    return CurrencyAmount.fromFractionalAmount(this.currency, multiplied.numerator, multiplied.denominator);
+  };
+
+  _proto.divide = function divide(other) {
+    var divided = _Fraction.prototype.divide.call(this, other);
+
+    return CurrencyAmount.fromFractionalAmount(this.currency, divided.numerator, divided.denominator);
+  };
+
+  _proto.toSignificant = function toSignificant(significantDigits, format, rounding) {
+    if (significantDigits === void 0) {
+      significantDigits = 6;
+    }
+
+    if (rounding === void 0) {
+      rounding = Rounding.ROUND_DOWN;
+    }
+
+    return _Fraction.prototype.divide.call(this, this.decimalScale).toSignificant(significantDigits, format, rounding);
+  };
+
+  _proto.toFixed = function toFixed(decimalPlaces, format, rounding) {
+    if (decimalPlaces === void 0) {
+      decimalPlaces = this.currency.decimals;
+    }
+
+    if (rounding === void 0) {
+      rounding = Rounding.ROUND_DOWN;
+    }
+
+    !(decimalPlaces <= this.currency.decimals) ? process.env.NODE_ENV !== "production" ? invariant(false, 'DECIMALS') : invariant(false) : void 0;
+    return _Fraction.prototype.divide.call(this, this.decimalScale).toFixed(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.quotient.toString()).div(this.decimalScale.toString()).toFormat(format);
+  };
+
+  return CurrencyAmount;
+}(Fraction);
+
+var ONE_HUNDRED_PERCENT = /*#__PURE__*/new Fraction( /*#__PURE__*/JSBI.BigInt(100));
+/**
+ * Converts a fraction to a percent
+ * @param fraction the fraction to convert
+ */
+
 function toPercent(fraction) {
@@ -335,3 +409,3 @@ return new Percent(fraction.numerator, fraction.denominator);
 
-    return this.multiply(_100_PERCENT).toSignificant(significantDigits, format, rounding);
+    return _Fraction.prototype.multiply.call(this, ONE_HUNDRED_PERCENT).toSignificant(significantDigits, format, rounding);
   };
@@ -344,3 +418,3 @@
 
-    return this.multiply(_100_PERCENT).toFixed(decimalPlaces, format, rounding);
+    return _Fraction.prototype.multiply.call(this, ONE_HUNDRED_PERCENT).toFixed(decimalPlaces, format, rounding);
   };
@@ -351,2 +425,162 @@
 
+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(JSBI.BigInt(10), JSBI.BigInt(baseCurrency.decimals)), JSBI.exponentiate(JSBI.BigInt(10), JSBI.BigInt(quoteCurrency.decimals)));
+    return _this;
+  }
+  /**
+   * Flip the price, switching the base and quote currency
+   */
+
+
+  var _proto = Price.prototype;
+
+  _proto.invert = function invert() {
+    return new Price(this.quoteCurrency, this.baseCurrency, this.numerator, this.denominator);
+  }
+  /**
+   * Multiply the price by another price, returning a new price. The other price must have the same base currency as this price's quote currency
+   * @param other the other price
+   */
+  ;
+
+  _proto.multiply = function multiply(other) {
+    !currencyEquals(this.quoteCurrency, other.baseCurrency) ? process.env.NODE_ENV !== "production" ? invariant(false, 'TOKEN') : invariant(false) : void 0;
+
+    var fraction = _Fraction.prototype.multiply.call(this, other);
+
+    return new Price(this.baseCurrency, other.quoteCurrency, fraction.denominator, fraction.numerator);
+  }
+  /**
+   * Return the amount of quote currency corresponding to a given amount of the base currency
+   * @param currencyAmount the amount of base currency to quote against the price
+   */
+  ;
+
+  _proto.quote = function quote(currencyAmount) {
+    !currencyEquals(currencyAmount.currency, this.baseCurrency) ? process.env.NODE_ENV !== "production" ? invariant(false, 'TOKEN') : invariant(false) : void 0;
+
+    var result = _Fraction.prototype.multiply.call(this, currencyAmount);
+
+    return CurrencyAmount.fromFractionalAmount(this.quoteCurrency, result.numerator, result.denominator);
+  }
+  /**
+   * Get the value scaled by decimals for formatting
+   * @private
+   */
+  ;
+
+  _proto.toSignificant = function toSignificant(significantDigits, format, rounding) {
+    if (significantDigits === void 0) {
+      significantDigits = 6;
+    }
+
+    return this.adjustedForDecimals.toSignificant(significantDigits, format, rounding);
+  };
+
+  _proto.toFixed = function toFixed(decimalPlaces, format, rounding) {
+    if (decimalPlaces === void 0) {
+      decimalPlaces = 4;
+    }
+
+    return this.adjustedForDecimals.toFixed(decimalPlaces, format, rounding);
+  };
+
+  _createClass(Price, [{
+    key: "adjustedForDecimals",
+    get: function get() {
+      return _Fraction.prototype.multiply.call(this, this.scalar);
+    }
+  }]);
+
+  return Price;
+}(Fraction);
+
+/**
+ * Validates an address and returns the parsed (checksummed) version of that address
+ * @param address the unchecksummed hex address
+ */
+
+function validateAndParseAddress(address) {
+  try {
+    return getAddress(address);
+  } catch (error) {
+    throw new Error(address + " is not a valid address.");
+  }
+}
+
+var _WETH;
+/**
+ * Represents an ERC20 token with a unique address and some metadata.
+ */
+
+var Token = /*#__PURE__*/function (_BaseCurrency) {
+  _inheritsLoose(Token, _BaseCurrency);
+
+  function Token(chainId, address, decimals, symbol, name) {
+    var _this;
+
+    _this = _BaseCurrency.call(this, decimals, symbol, name) || this;
+    _this.isEther = false;
+    _this.isToken = true;
+    _this.chainId = chainId;
+    _this.address = validateAndParseAddress(address);
+    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) ? process.env.NODE_ENV !== "production" ? invariant(false, 'CHAIN_IDS') : invariant(false) : void 0;
+    !(this.address !== other.address) ? process.env.NODE_ENV !== "production" ? invariant(false, 'ADDRESSES') : invariant(false) : void 0;
+    return this.address.toLowerCase() < other.address.toLowerCase();
+  };
+
+  return Token;
+}(BaseCurrency);
+var WETH9 = (_WETH = {}, _WETH[ChainId.MAINNET] = /*#__PURE__*/new Token(ChainId.MAINNET, '0xC02aaA39b223FE8D0A0e5C4F27eAD9083C756Cc2', 18, 'WETH9', 'Wrapped Ether'), _WETH[ChainId.ROPSTEN] = /*#__PURE__*/new Token(ChainId.ROPSTEN, '0xc778417E063141139Fce010982780140Aa0cD5Ab', 18, 'WETH9', 'Wrapped Ether'), _WETH[ChainId.RINKEBY] = /*#__PURE__*/new Token(ChainId.RINKEBY, '0xc778417E063141139Fce010982780140Aa0cD5Ab', 18, 'WETH9', 'Wrapped Ether'), _WETH[ChainId.GÖRLI] = /*#__PURE__*/new Token(ChainId.GÖRLI, '0xB4FBF271143F4FBf7B91A5ded31805e42b2208d6', 18, 'WETH9', 'Wrapped Ether'), _WETH[ChainId.KOVAN] = /*#__PURE__*/new Token(ChainId.KOVAN, '0xd0A1E359811322d97991E03f863a0C30C2cF029C', 18, 'WETH9', 'Wrapped Ether'), _WETH);
+
+/**
+ * Returns the percent difference between the mid price and the execution price, i.e. price impact.
+ * @param midPrice mid price before the trade
+ * @param inputAmount the input amount of the trade
+ * @param outputAmount the output amount of the trade
+ */
+
+function computePriceImpact(midPrice, inputAmount, outputAmount) {
+  var quotedOutputAmount = midPrice.quote(inputAmount); // calculate price impact := (exactQuote - outputAmount) / exactQuote
+
+  var priceImpact = quotedOutputAmount.subtract(outputAmount).divide(quotedOutputAmount);
+  return new Percent(priceImpact.numerator, priceImpact.denominator);
+}
+
 // `maxSize` by removing the last item
@@ -417,17 +651,2 @@
 /**
- * Compares two currencies for equality
- */
-function currencyEquals(currencyA, currencyB) {
-  if (currencyA.isToken && currencyB.isToken) {
-    return currencyA.equals(currencyB);
-  } else if (currencyA.isToken) {
-    return false;
-  } else if (currencyB.isToken) {
-    return false;
-  } else {
-    return currencyA.isEther === currencyB.isEther;
-  }
-}
-
-/**
  * Given a currency which can be Ether or a token, return wrapped ether for ether and the token for the token
@@ -455,154 +674,6 @@ * @param currency the currency to wrap, if necessary
 function wrappedCurrencyAmount(currencyAmount, chainId) {
-  return new CurrencyAmount(wrappedCurrency(currencyAmount.currency, chainId), currencyAmount.raw);
+  return CurrencyAmount.fromFractionalAmount(wrappedCurrency(currencyAmount.currency, chainId), currencyAmount.numerator, currencyAmount.denominator);
 }
 
-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 = JSBI.BigInt(amount);
-    !JSBI.lessThanOrEqual(parsedAmount, MaxUint256) ? process.env.NODE_ENV !== "production" ? invariant(false, 'AMOUNT') : invariant(false) : void 0;
-    _this = _Fraction.call(this, parsedAmount, JSBI.exponentiate(JSBI.BigInt(10), 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) ? process.env.NODE_ENV !== "production" ? invariant(false, 'TOKEN') : invariant(false) : void 0;
-    return new CurrencyAmount(this.currency, JSBI.add(this.raw, other.raw));
-  };
-
-  _proto.subtract = function subtract(other) {
-    !currencyEquals(this.currency, other.currency) ? process.env.NODE_ENV !== "production" ? invariant(false, 'TOKEN') : invariant(false) : 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 = 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 = Rounding.ROUND_DOWN;
-    }
-
-    !(decimalPlaces <= this.currency.decimals) ? process.env.NODE_ENV !== "production" ? invariant(false, 'DECIMALS') : invariant(false) : 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 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(JSBI.BigInt(10), JSBI.BigInt(baseCurrency.decimals)), JSBI.exponentiate(JSBI.BigInt(10), JSBI.BigInt(quoteCurrency.decimals)));
-    return _this;
-  }
-
-  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) ? process.env.NODE_ENV !== "production" ? invariant(false, 'TOKEN') : invariant(false) : void 0;
-
-    var fraction = _Fraction.prototype.multiply.call(this, other);
-
-    return new Price(this.baseCurrency, other.quoteCurrency, fraction.denominator, fraction.numerator);
-  } // quotes with floor division
-  ;
-
-  _proto.quote = function quote(currencyAmount) {
-    !currencyEquals(currencyAmount.currency, this.baseCurrency) ? process.env.NODE_ENV !== "production" ? invariant(false, 'TOKEN') : invariant(false) : void 0;
-    return new CurrencyAmount(this.quoteCurrency, _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);
-
-export { ChainId, CurrencyAmount, ETHER, Ether, Fraction, MaxUint256, Percent, Price, Rounding, Token, TradeType, WETH9, currencyEquals, sortedInsert, sqrt, validateAndParseAddress, wrappedCurrency, wrappedCurrencyAmount };
+export { ChainId, CurrencyAmount, ETHER, Ether, Fraction, MaxUint256, Percent, Price, Rounding, Token, TradeType, WETH9, computePriceImpact, currencyEquals, sortedInsert, sqrt, validateAndParseAddress, wrappedCurrency, wrappedCurrencyAmount };
 //# sourceMappingURL=sdk-core.esm.js.map

dist/utils/index.d.ts

@@ -1,7 +0,7 @@
-import sortedInsert from './sortedInsert';
-import validateAndParseAddress from './validateAndParseAddress';
-import sqrt from './sqrt';
-export { sortedInsert, validateAndParseAddress, sqrt };
+export { computePriceImpact } from './computePriceImpact';
 export { currencyEquals } from './currencyEquals';
+export { validateAndParseAddress } from './validateAndParseAddress';
+export { sortedInsert } from './sortedInsert';
+export { sqrt } from './sqrt';
 export { wrappedCurrency } from './wrappedCurrency';
 export { wrappedCurrencyAmount } from './wrappedCurrencyAmount';

dist/utils/sortedInsert.d.ts

@@ -1,1 +0,1 @@
-export default function sortedInsert<T>(items: T[], add: T, maxSize: number, comparator: (a: T, b: T) => number): T | null;
+export declare function sortedInsert<T>(items: T[], add: T, maxSize: number, comparator: (a: T, b: T) => number): T | null;

dist/utils/sqrt.d.ts

@@ -7,2 +7,2 @@ import JSBI from 'jsbi';
  */
-export default function sqrt(value: JSBI): JSBI;
+export declare function sqrt(value: JSBI): JSBI;

dist/utils/validateAndParseAddress.d.ts

@@ -5,2 +5,2 @@ /**
  */
-export default function validateAndParseAddress(address: string): string;
+export declare function validateAndParseAddress(address: string): string;

package.json

 {
   "name": "@uniswap/sdk-core",
   "license": "MIT",
-  "version": "2.0.5",
+  "version": "3.0.0-alpha.0",
   "description": "⚒️ An SDK for building applications on top of Uniswap V3",
@@ -6,0 +6,0 @@ "main": "dist/index.js",

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