We don't know the pool tokens in the ProtocolComponent, so we can't infer the indexes correctly. Added a call to the MetaRegistry curve contract to get the correct token indexes. To do this, I had to move the get_client to utils. We could actually refactor the transaction logic into its' own struct and use it here and in the approval logic
It was assumed that all the pools will have a "factory" static attribute, even if empty
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ENG-4306 Took 2 hours 28 minutes
Took 27 seconds
- The resolution wasn't high enough before, so 0.1% slippage would round to 0% slippage. We should instead use basis point resolution to overcome this.
- To keep any knowledge of USV4 separate from regular splits, I've made a new USV4 encoding strategy that will be used only if we detect sequential USV4 swaps.
- For single USV4 swaps without necessary optimizations, the regular split swap strategy can be used
- No need to change the swap struct interface to take multiple swaps - this concatenation can be done at the swap strategy level.
TODO:
- test
- deduplicate code from split strategy
- UniswapV4SwapEncoder
- Tried not to leave a single public function undocumented, though did not double-document public function with obvious names
- Remove all mentions of the strategy selector in favour of the strategy registry (to avoid confusion)
- 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
Pass the signer's private key as a string around and only create a PrivateKeySigner inside Permit2 (where it's needed)
Use tycho-core Chain instead of Alloy ChainID. Create a temp method to convert between them
Create a EVMSwapEncoder that implements the executor_selector (that is evm specific)
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ENG-4081 Took 1 hour 7 minutes
The strategy works as follows:
- Manage approvals needed
- Compute min amount (if check amount is any):
- if slippage is defined, apply slippage on the expected amount and take the min value between that and the check amount
- if not, it's just the check amount
- Iterate through the swaps
- call the corresponding swap encoder to encode the swap
- add swap header (tokens indexes and split)
- ple encode the swaps
- Add extra inputs (amounts, token addresses, min amount, (un)wrap, number of tokens and receiver)
Misc:
- Move executor address and selector encoding inside the SwapEncoder
- Add default executor_selector to SwapEncoder
- Pass router address inside the SplitSwapStrategyEncoder
- Move Permit2 inside the SplitSwapStrategyEncoder. It is a responsibility and a specificity of the strategy to need permit2 approvals
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ENG-4081 Took 1 hour 21 minutes
No more SingleSwapStrategyEncoder or SequentialStrategyEncoder
No more batch routing (so no need for batch permits as well). If multiple solutions are found, return multiple Transactions
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ENG-4076 <#DTT#>
- Move all evm code inside evm directory
- StrategyEncoder:
- Kept StrategyEncoder trait but created a new one: EVMStrategyEncoder to implement encode_protocol_header (that is evm specific).
- All StrategyEncoders implement both traits now
- Renamed DefaultStrategySelector -> EVMStrategySelector
- RouterEncoder:
- Created a RouterEncoder trait and a EVMRouterEncoder that implements it
- Moved utils inside evm directory as well
- Renamed config.json -> executor_addresses.json and moved it to a higher config directory
- Make alloy optional and dependent on the evm feature gate
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ENG-4075 <#DTT#>
