feat: live pAMM state-override stream integration (scaffold)#1106
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zizou0x wants to merge 1 commit into
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feat: live pAMM state-override stream integration (scaffold)#1106zizou0x wants to merge 1 commit into
zizou0x wants to merge 1 commit into
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Add a generic, protocol-agnostic layer in tycho-simulation that injects live per-block VM storage overrides and block environment into pAMM pools (e.g. FermiSwap) sourced from the Titan pAMM stream. - overrides.rs: StateOverrideProvider trait, OverrideSnapshot, and attach_live_overrides helper (downcasts EVMPoolState and wires a live watch channel into the pool). - EVMPoolState: read-through live overrides at simulation time via a watch receiver; storage and block env now prefer the live snapshot. - decoder: attaches each provider's channel to matching venue pools. - stream builder: default-on auto-registration of the Titan provider with without_titan_overrides() opt-out and with_override_provider() for custom sources. The Titan WebSocket client bodies (spawn/parse/timestamp resolution) are todo!() and land in a follow-up. Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
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Summary
Scaffolds a generic, protocol-agnostic layer in
tycho-simulationthat injects live per-block VM storage overrides and block environment into pAMM pools (e.g. FermiSwap), sourced from the Titan pAMM stream. Consumers keep usingProtocolStreamBuilderunchanged; overrides are on by default with an opt-out.Jira: ENG-6118
How it works
watchchannel ofOverrideSnapshots per protocol.EVMPoolStatefor a served venue holds the receiver and reads the freshest snapshot at simulation time (get_amount_out/get_limits), so sub-block updates are reflected without a Tycho block update.Changes
evm/overrides.rs(new):StateOverrideProvidertrait,OverrideSnapshot,attach_live_overrideshelper.evm/protocol/vm/state.rs: live read-through onEVMPoolState(live_overridesfield,set_live_overrides, live-awareget_overwritesandeffective_block_overrides).evm/decoder.rs: attaches each registered provider's channel to matching venue pools during decode.evm/stream.rs: default-on auto-registration of the Titan provider, withwithout_titan_overrides()opt-out andwith_override_provider()/titan_url().evm/titan.rs(new):TitanProviderimplementing the trait; WebSocket client bodies aretodo!().Status
Draft / WIP. The Titan WebSocket client (
spawn,parse_message,max_lane_timestamp,venue_for_protocol) is stubbed withtodo!()and lands in a follow-up. Compiles under--all-featuresand--no-default-features --features evm; clippy clean.Test plan
TitanProviderWS client and un-ignore provider tests