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def default_value

bend-collections@1.0.0.0 · src/containers/balanced_search_tree.bend:348

import bend-collections@1.0.0.0/src/containers/balanced_search_tree.bend as BalancedSearchTree
import Base

348def default_value(~K: Data, ~V: Data, ~cmp: K -> K -> Cmp, +fallback: V, r: TreeMap<K, V, cmp> & Maybe<&2, V>) -> TreeMap<K, V, cmp> & V:
349  match r:
350    case Tuple{m, None{}}:
351      (m, fallback)
352    case Tuple{m, Some{v}}:
353      (m, v)

Uses (5)

Used by (1)