Lean 4 fork for HoTT-compatible kernel extensions (Path types, transport, HITs). Maintained against upstream leanprover/lean4.
This PR improves hovers and completions for compound field names in structure instance notation. Previously a field like `x.fst` would only have information associated to `x` attached to the entire syntax, but now `x` and `fst` are treated separately. Additionally, the `trace.Elab.struct` trace class is now `trace.Elab.structInst`, and the messages have been cleaned up and reorganized. Furthermore, `ExceptToTraceResult` has an `Expr` instance that shows a failure emoji when there are synthetic sorries. Lastly, `Syntax.identComponents` has an early return for names with at most one component, saving a re-parsing step. |
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| lean-toolchain | ||
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