SOURCE_FILE@0..84
  FN@0..83
    FN_KW@0..2 "fn"
    WHITESPACE@2..3 " "
    NAME@3..6
      IDENT@3..6 "foo"
    PARAM_LIST@6..8
      L_PAREN@6..7 "("
      R_PAREN@7..8 ")"
    WHITESPACE@8..9 " "
    BLOCK_EXPR@9..83
      L_CURLY@9..10 "{"
      WHITESPACE@10..15 "\n    "
      MATCH_EXPR@15..81
        MATCH_KW@15..20 "match"
        WHITESPACE@20..21 " "
        TUPLE_EXPR@21..23
          L_PAREN@21..22 "("
          R_PAREN@22..23 ")"
        WHITESPACE@23..24 " "
        MATCH_ARM_LIST@24..81
          L_CURLY@24..25 "{"
          WHITESPACE@25..34 "\n        "
          MATCH_ARM@34..41
            WILDCARD_PAT@34..35
              UNDERSCORE@34..35 "_"
            WHITESPACE@35..36 " "
            FAT_ARROW@36..38 "=>"
            WHITESPACE@38..39 " "
            BLOCK_EXPR@39..41
              L_CURLY@39..40 "{"
              R_CURLY@40..41 "}"
          WHITESPACE@41..50 "\n        "
          MATCH_ARM@50..58
            TUPLE_PAT@50..52
              L_PAREN@50..51 "("
              R_PAREN@51..52 ")"
            WHITESPACE@52..53 " "
            FAT_ARROW@53..55 "=>"
            WHITESPACE@55..56 " "
            BLOCK_EXPR@56..58
              L_CURLY@56..57 "{"
              R_CURLY@57..58 "}"
          WHITESPACE@58..67 "\n        "
          MATCH_ARM@67..75
            SLICE_PAT@67..69
              L_BRACK@67..68 "["
              R_BRACK@68..69 "]"
            WHITESPACE@69..70 " "
            FAT_ARROW@70..72 "=>"
            WHITESPACE@72..73 " "
            BLOCK_EXPR@73..75
              L_CURLY@73..74 "{"
              R_CURLY@74..75 "}"
          WHITESPACE@75..80 "\n    "
          R_CURLY@80..81 "}"
      WHITESPACE@81..82 "\n"
      R_CURLY@82..83 "}"
  WHITESPACE@83..84 "\n"