def eq_acc

bend-collections-laws-math@1.0.0.0 · src/containers/hash_table.bend:75

import Base

75def eq_acc(a: String, b: String, ra: String, rb: String, +e: Bool) -> (String & String) & Bool:
76  match a b:
77    case SNil{} SNil{}:
78      ((rev_onto(ra, SNil{}), rev_onto(rb, SNil{})), e)
79    case SNil{} SCon{h, t}:
80      ((rev_onto(ra, SNil{}), rev_onto(rb, SCon{h, t})), False{})
81    case SCon{h, t} SNil{}:
82      ((rev_onto(ra, SCon{h, t}), rev_onto(rb, SNil{})), False{})
83    case SCon{Chr{+x}, ta} SCon{Chr{+y}, tb}:
84      eq_acc(ta, tb, SCon{Chr{x}, ra}, SCon{Chr{y}, rb}, Bool.and(e, U32.is_eq(x, y)))