def checked

bend-collections-laws-crypto@1.0.0.0 · spec/crypto/sha/packed.bend:96

import Base
import bend-collections-laws-crypto@1.0.0.0/src/crypto/sha/state.bend as S

96def checked(valid: Bool, a: Array<U32>, length: Nat) -> Maybe<&2,S.State>:
97  match valid:
98    case False{}: None{}
99    case True{}: Some{hash_unchecked(a,length)}