SOURCE_FILE@0..130
  FN@0..129
    FN_KW@0..2 "fn"
    WHITESPACE@2..3 " "
    NAME@3..7
      IDENT@3..7 "main"
    PARAM_LIST@7..9
      L_PAREN@7..8 "("
      R_PAREN@8..9 ")"
    WHITESPACE@9..10 " "
    BLOCK_EXPR@10..129
      L_CURLY@10..11 "{"
      WHITESPACE@11..16 "\n    "
      MATCH_EXPR@16..127
        MATCH_KW@16..21 "match"
        WHITESPACE@21..22 " "
        TUPLE_EXPR@22..24
          L_PAREN@22..23 "("
          R_PAREN@23..24 ")"
        WHITESPACE@24..25 " "
        MATCH_ARM_LIST@25..127
          L_CURLY@25..26 "{"
          WHITESPACE@26..35 "\n        "
          MATCH_ARM@35..48
            PAREN_PAT@35..42
              L_PAREN@35..36 "("
              OR_PAT@36..41
                WILDCARD_PAT@36..37
                  UNDERSCORE@36..37 "_"
                WHITESPACE@37..38 " "
                PIPE@38..39 "|"
                WHITESPACE@39..40 " "
                WILDCARD_PAT@40..41
                  UNDERSCORE@40..41 "_"
              R_PAREN@41..42 ")"
            WHITESPACE@42..43 " "
            FAT_ARROW@43..45 "=>"
            WHITESPACE@45..46 " "
            TUPLE_EXPR@46..48
              L_PAREN@46..47 "("
              R_PAREN@47..48 ")"
          COMMA@48..49 ","
          WHITESPACE@49..58 "\n        "
          MATCH_ARM@58..72
            REF_PAT@58..66
              AMP@58..59 "&"
              PAREN_PAT@59..66
                L_PAREN@59..60 "("
                OR_PAT@60..65
                  WILDCARD_PAT@60..61
                    UNDERSCORE@60..61 "_"
                  WHITESPACE@61..62 " "
                  PIPE@62..63 "|"
                  WHITESPACE@63..64 " "
                  WILDCARD_PAT@64..65
                    UNDERSCORE@64..65 "_"
                R_PAREN@65..66 ")"
            WHITESPACE@66..67 " "
            FAT_ARROW@67..69 "=>"
            WHITESPACE@69..70 " "
            TUPLE_EXPR@70..72
              L_PAREN@70..71 "("
              R_PAREN@71..72 ")"
          COMMA@72..73 ","
          WHITESPACE@73..82 "\n        "
          MATCH_ARM@82..96
            TUPLE_PAT@82..90
              L_PAREN@82..83 "("
              OR_PAT@83..88
                WILDCARD_PAT@83..84
                  UNDERSCORE@83..84 "_"
                WHITESPACE@84..85 " "
                PIPE@85..86 "|"
                WHITESPACE@86..87 " "
                WILDCARD_PAT@87..88
                  UNDERSCORE@87..88 "_"
              COMMA@88..89 ","
              R_PAREN@89..90 ")"
            WHITESPACE@90..91 " "
            FAT_ARROW@91..93 "=>"
            WHITESPACE@93..94 " "
            TUPLE_EXPR@94..96
              L_PAREN@94..95 "("
              R_PAREN@95..96 ")"
          COMMA@96..97 ","
          WHITESPACE@97..106 "\n        "
          MATCH_ARM@106..120
            SLICE_PAT@106..114
              L_BRACK@106..107 "["
              OR_PAT@107..112
                WILDCARD_PAT@107..108
                  UNDERSCORE@107..108 "_"
                WHITESPACE@108..109 " "
                PIPE@109..110 "|"
                WHITESPACE@110..111 " "
                WILDCARD_PAT@111..112
                  UNDERSCORE@111..112 "_"
              COMMA@112..113 ","
              R_BRACK@113..114 "]"
            WHITESPACE@114..115 " "
            FAT_ARROW@115..117 "=>"
            WHITESPACE@117..118 " "
            TUPLE_EXPR@118..120
              L_PAREN@118..119 "("
              R_PAREN@119..120 ")"
          COMMA@120..121 ","
          WHITESPACE@121..126 "\n    "
          R_CURLY@126..127 "}"
      WHITESPACE@127..128 "\n"
      R_CURLY@128..129 "}"
  WHITESPACE@129..130 "\n"