def upcoming

bend-lint-rules@0.2.0.0 · layout/format.bend:1147

import Base

1147# The first tree after a run of newlines.
1148def upcoming(xs: List<&2, Tree>) -> Maybe<&2, Tree>:
1149  match xs:
1150    case Nil{}:
1151      None{}
1152    case Con{Leaf{Token{text, beg, end, col, Newline{}, sym, name, tail, from}}, rest}:
1153      upcoming(rest)
1154    case Con{x, rest}:
1155      Some{x}