src/engine/core.rs
This file is your re-export root for the brain-side modules: pub use lifecycle::*; pub use machine::*;. Read it first when you want to know which import path to write.
You reach outcome’s to_loop_error as an inherent method on MachineOutcome, so the machine re-exports carry it for you and you never name outcome in an import.
Contents
Section titled “Contents”lifecycle.rs gives you the Loop trait and the run records you read after a run.
machine.rs holds the state machine that decides your next step.
outcome.rs owns the translation from an outcome into the error your caller sees.
Deep dive: The big idea.