NoBey/uniswap-v2
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

optimistic swaps (#53)

Browse Source 
* alternative flash lending (renting) design

* add rent interface

* fix stack too deep error

rearrange order of k condition math

ignore erroneous out of gas errors in tests

* try removing rent in favor of monolithic swap

IUniswapV2Borrower -> IUniswapV2Callee

update tests

* fix implementation

* clean up math a bit

* amount{0,1}In -> amount{0,1}InNet

* charge on all inputs, not just net

* removed unnecessary safemath

* add to != token check

don't indent in scope

rename reserve{0,1}Next -> reserve{0,1}Adjusted

* > instead of >=

simplify algebra

reserve{0,1}Adjusted -> balance{0,1}Adjusted

add comments

* add some optimistic swap test cases
This commit is contained in:
Noah Zinsmeister
2020-02-17 15:06:43 -07:00
committed by GitHub
parent 3f5feaa369
commit b742e92502
5 changed files with 94 additions and 49 deletions
Download Patch File Download Diff File Expand all files Collapse all files

12
test/shared/fixtures.ts
View File

@ -12,8 +12,12 @@ interface FactoryFixture {
factory: Contract
}
const overrides = {
gasLimit: 9999999
}
export async function factoryFixture(_: Web3Provider, [wallet]: Wallet[]): Promise<FactoryFixture> {
const factory = await deployContract(wallet, UniswapV2Factory, [wallet.address])
const factory = await deployContract(wallet, UniswapV2Factory, [wallet.address], overrides)
return { factory }
}
@ -26,10 +30,10 @@ interface ExchangeFixture extends FactoryFixture {
export async function exchangeFixture(provider: Web3Provider, [wallet]: Wallet[]): Promise<ExchangeFixture> {
const { factory } = await factoryFixture(provider, [wallet])
const tokenA = await deployContract(wallet, ERC20, [expandTo18Decimals(10000)])
const tokenB = await deployContract(wallet, ERC20, [expandTo18Decimals(10000)])
const tokenA = await deployContract(wallet, ERC20, [expandTo18Decimals(10000)], overrides)
const tokenB = await deployContract(wallet, ERC20, [expandTo18Decimals(10000)], overrides)
await factory.createExchange(tokenA.address, tokenB.address)
await factory.createExchange(tokenA.address, tokenB.address, overrides)
const exchangeAddress = await factory.getExchange(tokenA.address, tokenB.address)
const exchange = new Contract(exchangeAddress, JSON.stringify(UniswapV2Exchange.abi), provider).connect(wallet)