re-arrange some exports

src/constants.ts

 import JSBI from 'jsbi'
 
 // exports for external consumption
+export type BigintIsh = JSBI | bigint | string
+
 export enum ChainId {
   MAINNET = 1,
   ROPSTEN = 3,
@@ -9,15 +11,23 @@ export enum ChainId {
   KOVAN = 42
 }
 
-export const FACTORY_ADDRESS = '0xe2f197885abe8ec7c866cFf76605FD06d4576218'
-
-export const INIT_CODE_HASH = '0x0b77fb54a078d9399fa29cac94f5b35b9f11611b456ab507c7f46754712b642b'
-
 export enum TradeType {
   EXACT_INPUT,
   EXACT_OUTPUT
 }
 
+export enum Rounding {
+  ROUND_DOWN,
+  ROUND_HALF_UP,
+  ROUND_UP
+}
+
+export const FACTORY_ADDRESS = '0xe2f197885abe8ec7c866cFf76605FD06d4576218'
+
+export const INIT_CODE_HASH = '0x0b77fb54a078d9399fa29cac94f5b35b9f11611b456ab507c7f46754712b642b'
+
+export const MINIMUM_LIQUIDITY = JSBI.BigInt(1000)
+
 // exports for internal consumption
 export const ZERO = JSBI.BigInt(0)
 export const ONE = JSBI.BigInt(1)
@@ -28,7 +38,6 @@ export const TEN = JSBI.BigInt(10)
 export const _100 = JSBI.BigInt(100)
 export const _997 = JSBI.BigInt(997)
 export const _1000 = JSBI.BigInt(1000)
-export const MINIMUM_LIQUIDITY = _1000
 
 export enum SolidityType {
   uint8 = 'uint8',

src/entities/fractions/fraction.ts

@@ -4,7 +4,7 @@ import _Decimal from 'decimal.js-light'
 import _Big, { RoundingMode } from 'big.js'
 import toFormat from 'toformat'
 
-import { BigintIsh, Rounding } from '../../types'
+import { BigintIsh, Rounding } from '../../constants'
 import { ONE } from '../../constants'
 import { parseBigintIsh } from '../../utils'
 

src/entities/fractions/percent.ts

-import { Rounding } from '../../types'
-import { _100 } from '../../constants'
+import { Rounding, _100 } from '../../constants'
 import { Fraction } from './fraction'
 
 const _100_PERCENT = new Fraction(_100)

src/entities/fractions/price.ts

 import invariant from 'tiny-invariant'
 import JSBI from 'jsbi'
 
-import { BigintIsh, Rounding } from '../../types'
-import { TEN } from '../../constants'
+import { BigintIsh, Rounding, TEN } from '../../constants'
 import { Token } from '../token'
 import { Route } from '../route'
 import { Fraction } from './fraction'

src/entities/fractions/tokenAmount.ts

@@ -3,8 +3,7 @@ import JSBI from 'jsbi'
 import _Big from 'big.js'
 import toFormat from 'toformat'
 
-import { BigintIsh, Rounding } from '../../types'
-import { TEN, SolidityType } from '../../constants'
+import { BigintIsh, Rounding, TEN, SolidityType } from '../../constants'
 import { parseBigintIsh, validateSolidityTypeInstance } from '../../utils'
 import { Token } from '../token'
 import { Fraction } from './fraction'

src/entities/pair.ts

@@ -6,8 +6,17 @@ import { Contract } from '@ethersproject/contracts'
 import { pack, keccak256 } from '@ethersproject/solidity'
 import { getCreate2Address } from '@ethersproject/address'
 
-import { BigintIsh } from '../types'
-import { FACTORY_ADDRESS, INIT_CODE_HASH, ZERO, ONE, FIVE, _997, _1000, MINIMUM_LIQUIDITY } from '../constants'
+import {
+  BigintIsh,
+  FACTORY_ADDRESS,
+  INIT_CODE_HASH,
+  MINIMUM_LIQUIDITY,
+  ZERO,
+  ONE,
+  FIVE,
+  _997,
+  _1000
+} from '../constants'
 import ERC20 from '../abis/ERC20.json'
 import { sqrt, parseBigintIsh } from '../utils'
 import { InsufficientReservesError, InsufficientInputAmountError } from '../errors'

src/index.ts

 import JSBI from 'jsbi'
 export { JSBI }
 
-export * from './types'
-export * from './constants'
-export * from './entities'
+export {
+  BigintIsh,
+  ChainId,
+  TradeType,
+  Rounding,
+  FACTORY_ADDRESS,
+  INIT_CODE_HASH,
+  MINIMUM_LIQUIDITY
+} from './constants'
+
 export * from './errors'
+export * from './entities'

src/types.ts

-import JSBI from 'jsbi'
-
-export type BigintIsh = JSBI | bigint | string
-
-export enum Rounding {
-  ROUND_DOWN,
-  ROUND_HALF_UP,
-  ROUND_UP
-}

src/utils.ts

@@ -3,8 +3,7 @@ import warning from 'tiny-warning'
 import JSBI from 'jsbi'
 import { getAddress } from '@ethersproject/address'
 
-import { BigintIsh } from './types'
-import { ZERO, ONE, TWO, THREE, SolidityType, SOLIDITY_TYPE_MAXIMA } from './constants'
+import { BigintIsh, ZERO, ONE, TWO, THREE, SolidityType, SOLIDITY_TYPE_MAXIMA } from './constants'
 
 export function validateSolidityTypeInstance(value: JSBI, solidityType: SolidityType): void {
   invariant(JSBI.greaterThanOrEqual(value, ZERO), `${value} is not a ${solidityType}.`)