Call with state overrides #983
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MartinquaXD
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# Description Adjusts the code base to make use of `.call_with_state_overrides` that was introduced in cowprotocol/ethcontract-rs#983. # Changes - remove `StateOverrides` types from our code base because they are now in ethcontract-rs - replace `Arc<dyn CodeSimulating>` with `Web3` - use `.call_with_state_overrides` instead of weird extension trait on web3 - migrated module declaration from `<module>.rs` to `<module>/mod.rs` to be more consistent with the remaining code base ## How to test tests of balance overriding logic should still work
xdecentralix
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Oct 7, 2025
# Description Adjusts the code base to make use of `.call_with_state_overrides` that was introduced in cowprotocol/ethcontract-rs#983. # Changes - remove `StateOverrides` types from our code base because they are now in ethcontract-rs - replace `Arc<dyn CodeSimulating>` with `Web3` - use `.call_with_state_overrides` instead of weird extension trait on web3 - migrated module declaration from `<module>.rs` to `<module>/mod.rs` to be more consistent with the remaining code base ## How to test tests of balance overriding logic should still work
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Using
eth_calltogether with state overrides is pretty useful and widely supported thing. Currently we need to use very ugly workaround in https://github.com/cowprotocol/services to use state overrides withethcontract-rs.In order to make everyone's lives easier it makes the most sense to make
call_with_state_overridesa first class citizen inethcontract-rs.StateOverridestruct which defines the format of things that can be overridencall_with_state_overridesonMethodCallBuilderandViewCallBuilderweb3crate not have any nice helper functions for using state overrides so I implemented the call with the underlying logic that theweb3crate would have calledTest Plan
I tested this by pointing the ethcontract dependency in the cowprotocol repo to a local checkout with this patch and did a manual test to make sure things work. Given that we are about to completely abandon this crate I think it's fine to check in a test specific for this.