Generic.prod_go: def of bend-collections@1.0.0.0
Import: import bend-collections@1.0.0.0/src/math/generic.bend as Generic
Lines 130-137 of bend-collections@1.0.0.0/src/math/generic.bend: https://jend.leeeet.dev/read.txt?path=bend-collections@1.0.0.0/src/math/generic.bend&start_line=130&end_line=137

import Base
import bend-collections@1.0.0.0/src/math/num.bend as N

def prod_go(~T: Data, ~op: N.Op<T> -> T, ~test: N.Test<T> -> Bool, xs: List<&2, T>, acc: Maybe<&2, T>) -> Maybe<&2, T>:
  match xs acc:
    case Nil{} _:
      acc
    case Con{x, rest} None{}:
      None{}
    case Con{+x, rest} Some{+a}:
      prod_go(~T, ~op, ~test, rest, cmul(~T, ~op, ~test, a, x))

Uses (6):
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Bool
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=List
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Maybe
  https://jend.leeeet.dev/definition.txt?path=bend-collections@1.0.0.0/src/math/generic.bend&name=cmul
  https://jend.leeeet.dev/definition.txt?path=bend-collections@1.0.0.0/src/math/num.bend&name=Op
  https://jend.leeeet.dev/definition.txt?path=bend-collections@1.0.0.0/src/math/num.bend&name=Test