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Arguments ! on primitive projection parameters should warn that it is ignored #20009

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SkySkimmer opened this issue Jan 10, 2025 · 1 comment

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part: primitive records

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SkySkimmer commented Jan 10, 2025

ie

Set Primitive Projections.

Record R (x:nat) := mk { p : nat }.

Arguments p !_ _.

Eval cbn in fun x => p x (@mk x 3).
(* reduced even though x isn't a constructor *)

SkySkimmer added the part: primitive records label

Contributor Author

SkySkimmer commented Jan 10, 2025

(but it isn't ignored if we go through the compat constant, eg

Definition p' := p.

Eval cbn in fun x => p' x (@mk x 3).

)

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