- Only for single swaps
- Used USV4 for this because it's the only DEX we support that allows native ETH swaps
- For Native ETH input single swaps, we need to properly check the remaining amount (we were treating them wronly like ERC20 tokens)
- For Native ETH output single swaps, we were passing the incorrect currency (the settle always needs to be the out token and the take always needs to be the in token, this should not depend on the zeroForOne value).
- If the signer_pk is not passed -> use the swap method that expects the tokens to be already in the Router
- If it is passed -> compute permit2 and use swap method that does the token in transfer
- Extend builder to have another shortcut
- Add integration test with contract
- Update bin (and simplified it) and quickstart
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ENG-4255 Took 1 hour 51 minutes
Took 2 minutes
Took 7 seconds
Construct the uniswap v4 specific objects inside the executor
The swap test in the executor alone doesn't work anymore because of the callback data prepended to the rest of he calldata
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ENG-4222 Took 4 hours 0 minutes
Took 40 seconds
Make TychoRouter inherit from SafeCallback and then delegatecall to the UniswapV4 executor
Add a test for this. I had to update the block of our forked network in the tests. Because of this I had to update all the asserts in previous tests
Had to change the optimizer_runs in foundry.toml because of weird Yul errors when compiling
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ENG-4223 Took 1 hour 21 minutes
Took 7 seconds
Took 35 seconds
- This is for security purposes. Max uncovered a vulnerability where funds could be stolen if we don't ether the while loop (i.e. if we have empty swaps).
The issue was that we weren't indexing WETH properly since it was looking for the WETH address in tokens, when only native ETH would be in there
- Found by adding integration tests for the wrapping and unwrapping cases.
- The util function was previously expecting a value between 0 and 100, which we felt was a weird UI.
- In integration test - make sure we spent all input tokens
- Note: I think we can get the fee straight from the pool... why did we always encode this and send it from the solver? Is this bound to change sometimes?
- The funds will always go through the router
- Rename splitSwap for Swap
- Improve tests
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ENG-4041 Took 24 minutes
Took 23 seconds
Took 42 seconds
Add tests to Swap
Modify ExecutionDispatcher and TychoRouter to account for these changes
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ENG-4041 Took 57 minutes
Took 10 seconds
Changes:
- If the tokenIn is ETH, skip permit2 approval
- Make executors payable: When using delegatecall the executor inherits the execution context of whoever calls it. Our main swap function can accept ETH, it needs to be payable so by consequence the executors also need to be.
- Set uniswap v2 executor in test router
- Add tests for all possible cases of swap
- Add tests for all cases of splitSwap
- Add test functions to handle permit2 and encode swaps
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ENG-4041 Took 3 hours 50 minutes
Took 49 seconds
Took 14 seconds
