Rewalk.called: def of bolt@1.27.0.0
Import: import bolt@1.27.0.0/src/rules/pedantic/rewalk.bend as Rewalk
Lines 373-386 of bolt@1.27.0.0/src/rules/pedantic/rewalk.bend: https://jend.leeeet.dev/read.txt?path=bolt@1.27.0.0/src/rules/pedantic/rewalk.bend&start_line=373&end_line=386

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

# every name a node calls
def called(nn: Tree.Node) -> List<&2, String>:
  match nn:
    case Tree.NCons{Tree.Leaf{Lex.Tok{k, +t, l, c}}, Tree.NCons{Tree.Group{Lex.Tok{_, +o, _, _}, +kids, _}, rest}}:
      +more = List.concat(&2, String, [called(kids), called(rest)])
      Bool.pick(List<&2, String>, String.eq(o, "("), t <> more, more)
    case Tree.NCons{Tree.Group{open, +kids, close}, rest}:
      List.concat(&2, String, [called(kids), called(rest)])
    case Tree.NCons{Tree.Stmt{kind, +kids, body}, rest}:
      List.concat(&2, String, [called(kids), called(body), called(rest)])
    case Tree.NCons{h, rest}:
      called(rest)
    case other:
      Nil{}

Uses (7):
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=Bool.pick
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=List
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=List.concat
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=String
  https://jend.leeeet.dev/definition.txt?path=Base/base.bend&name=String.eq
  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/tree.bend&name=Node