decode when `valid`, else reject
320def aosWhen =
321 (lambda unrestricted valid : Nat . (lambda unrestricted value : (family AosValue) .
322 (aosChoose (family AosDecoded) valid (aosDecodedAs value) aosRejected)))The compiler supplied declaration spans and resolved links from this source snapshot. This page does not assert that this file belongs to a checked closure.