7e9ea00ac0
This PR adds the options `pp.piBinderNames` and `pp.piBinderNames.hygienic`. Enabling `pp.piBinderNames` causes non-dependent pi binder names to be pretty printed, rather than be omitted. When `pp.piBinderNames.hygienic` is false (the default) then only non-hygienic such biner names are pretty printed. Setting `pp.all` enables `pp.piBinderNames` if it is not otherwise explicitly set. Implementation note: this is exposing the secret pretty printer option `pp.piBinderNames` that was being used within the signature pretty printer. Closes #1134.
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261 B
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2 lines
261 B
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fun {α : Sort v} => PEmpty.rec.{v, u_1} fun (x : PEmpty.{u_1}) => α : {α : Sort v} → (t : PEmpty.{u_1}) → α
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276.lean:9:4-9:16: error: code generator does not support recursor `PEmpty.rec` yet, consider using 'match ... with' and/or structural recursion
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