SOURCE_FILE@0..119
  FN@0..118
    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..118
      L_CURLY@9..10 "{"
      WHITESPACE@10..15 "\n    "
      LET_STMT@15..29
        LET_KW@15..18 "let"
        WHITESPACE@18..19 " "
        RECORD_PAT@19..23
          PATH@19..20
            PATH_SEGMENT@19..20
              NAME_REF@19..20
                IDENT@19..20 "S"
          WHITESPACE@20..21 " "
          RECORD_PAT_FIELD_LIST@21..23
            L_CURLY@21..22 "{"
            R_CURLY@22..23 "}"
        WHITESPACE@23..24 " "
        EQ@24..25 "="
        WHITESPACE@25..26 " "
        TUPLE_EXPR@26..28
          L_PAREN@26..27 "("
          R_PAREN@27..28 ")"
        SEMICOLON@28..29 ";"
      WHITESPACE@29..34 "\n    "
      LET_STMT@34..62
        LET_KW@34..37 "let"
        WHITESPACE@37..38 " "
        RECORD_PAT@38..56
          PATH@38..39
            PATH_SEGMENT@38..39
              NAME_REF@38..39
                IDENT@38..39 "S"
          WHITESPACE@39..40 " "
          RECORD_PAT_FIELD_LIST@40..56
            L_CURLY@40..41 "{"
            WHITESPACE@41..42 " "
            RECORD_PAT_FIELD@42..43
              IDENT_PAT@42..43
                NAME@42..43
                  IDENT@42..43 "f"
            COMMA@43..44 ","
            WHITESPACE@44..45 " "
            RECORD_PAT_FIELD@45..54
              IDENT_PAT@45..54
                REF_KW@45..48 "ref"
                WHITESPACE@48..49 " "
                MUT_KW@49..52 "mut"
                WHITESPACE@52..53 " "
                NAME@53..54
                  IDENT@53..54 "g"
            WHITESPACE@54..55 " "
            R_CURLY@55..56 "}"
        WHITESPACE@56..57 " "
        EQ@57..58 "="
        WHITESPACE@58..59 " "
        TUPLE_EXPR@59..61
          L_PAREN@59..60 "("
          R_PAREN@60..61 ")"
        SEMICOLON@61..62 ";"
      WHITESPACE@62..67 "\n    "
      LET_STMT@67..90
        LET_KW@67..70 "let"
        WHITESPACE@70..71 " "
        RECORD_PAT@71..84
          PATH@71..72
            PATH_SEGMENT@71..72
              NAME_REF@71..72
                IDENT@71..72 "S"
          WHITESPACE@72..73 " "
          RECORD_PAT_FIELD_LIST@73..84
            L_CURLY@73..74 "{"
            WHITESPACE@74..75 " "
            RECORD_PAT_FIELD@75..79
              NAME_REF@75..76
                IDENT@75..76 "h"
              COLON@76..77 ":"
              WHITESPACE@77..78 " "
              WILDCARD_PAT@78..79
                UNDERSCORE@78..79 "_"
            COMMA@79..80 ","
            WHITESPACE@80..81 " "
            DOT2@81..83 ".."
            R_CURLY@83..84 "}"
        WHITESPACE@84..85 " "
        EQ@85..86 "="
        WHITESPACE@86..87 " "
        TUPLE_EXPR@87..89
          L_PAREN@87..88 "("
          R_PAREN@88..89 ")"
        SEMICOLON@89..90 ";"
      WHITESPACE@90..95 "\n    "
      LET_STMT@95..116
        LET_KW@95..98 "let"
        WHITESPACE@98..99 " "
        RECORD_PAT@99..110
          PATH@99..100
            PATH_SEGMENT@99..100
              NAME_REF@99..100
                IDENT@99..100 "S"
          WHITESPACE@100..101 " "
          RECORD_PAT_FIELD_LIST@101..110
            L_CURLY@101..102 "{"
            WHITESPACE@102..103 " "
            RECORD_PAT_FIELD@103..107
              NAME_REF@103..104
                IDENT@103..104 "h"
              COLON@104..105 ":"
              WHITESPACE@105..106 " "
              WILDCARD_PAT@106..107
                UNDERSCORE@106..107 "_"
            COMMA@107..108 ","
            WHITESPACE@108..109 " "
            R_CURLY@109..110 "}"
        WHITESPACE@110..111 " "
        EQ@111..112 "="
        WHITESPACE@112..113 " "
        TUPLE_EXPR@113..115
          L_PAREN@113..114 "("
          R_PAREN@114..115 ")"
        SEMICOLON@115..116 ";"
      WHITESPACE@116..117 "\n"
      R_CURLY@117..118 "}"
  WHITESPACE@118..119 "\n"