Prefix.at_a: def of bolt@1.27.0.0
Import: import bolt@1.27.0.0/src/rules/suspicious/prefix.bend as Prefix
Lines 225-231 of bolt@1.27.0.0/src/rules/suspicious/prefix.bend: https://jend.leeeet.dev/read.txt?path=bolt@1.27.0.0/src/rules/suspicious/prefix.bend&start_line=225&end_line=231

import Base
import bolt@1.27.0.0/src/syntax/lex.bend as Lex

# a token of kind k0 and text t0, then these: the take-first shape?
def at_a(k0: Lex.TokKind, +t0: String, toks: List<&2, Lex.Tok>) -> Maybe<&2, String>:
  match toks:
    case Con{Lex.Tok{k1, +t1, l1, c1}, Con{Lex.Tok{k2, +t2, l2, c2}, Con{Lex.Tok{k3, +t3, l3, c3}, r3}}}:
      at_a.go(head_a(k0, t0, t1, t2, t3), r3)
    case other:
      None{}

Uses (7):
  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=Base/base.bend&name=String
  https://jend.leeeet.dev/definition.txt?path=bolt@1.27.0.0/src/rules/suspicious/prefix.bend&name=at_a.go
  https://jend.leeeet.dev/definition.txt?path=bolt@1.27.0.0/src/rules/suspicious/prefix.bend&name=head_a
  https://jend.leeeet.dev/definition.txt?path=bolt@1.27.0.0/src/syntax/lex.bend&name=Tok
  https://jend.leeeet.dev/definition.txt?path=bolt@1.27.0.0/src/syntax/lex.bend&name=TokKind