SOURCE_FILE@0..102
  FN@0..101
    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..101
      L_CURLY@9..10 "{"
      WHITESPACE@10..15 "\n    "
      LET_STMT@15..35
        LET_KW@15..18 "let"
        WHITESPACE@18..19 " "
        RECORD_PAT@19..29
          PATH@19..20
            PATH_SEGMENT@19..20
              NAME_REF@19..20
                IDENT@19..20 "S"
          WHITESPACE@20..21 " "
          RECORD_PAT_FIELD_LIST@21..29
            L_CURLY@21..22 "{"
            WHITESPACE@22..23 " "
            RECORD_PAT_FIELD@23..27
              NAME_REF@23..24
                INT_NUMBER@23..24 "0"
              COLON@24..25 ":"
              WHITESPACE@25..26 " "
              LITERAL_PAT@26..27
                LITERAL@26..27
                  INT_NUMBER@26..27 "1"
            WHITESPACE@27..28 " "
            R_CURLY@28..29 "}"
        WHITESPACE@29..30 " "
        EQ@30..31 "="
        WHITESPACE@31..32 " "
        TUPLE_EXPR@32..34
          L_PAREN@32..33 "("
          R_PAREN@33..34 ")"
        SEMICOLON@34..35 ";"
      WHITESPACE@35..40 "\n    "
      LET_STMT@40..60
        LET_KW@40..43 "let"
        WHITESPACE@43..44 " "
        RECORD_PAT@44..54
          PATH@44..45
            PATH_SEGMENT@44..45
              NAME_REF@44..45
                IDENT@44..45 "S"
          WHITESPACE@45..46 " "
          RECORD_PAT_FIELD_LIST@46..54
            L_CURLY@46..47 "{"
            WHITESPACE@47..48 " "
            RECORD_PAT_FIELD@48..52
              NAME_REF@48..49
                IDENT@48..49 "x"
              COLON@49..50 ":"
              WHITESPACE@50..51 " "
              LITERAL_PAT@51..52
                LITERAL@51..52
                  INT_NUMBER@51..52 "1"
            WHITESPACE@52..53 " "
            R_CURLY@53..54 "}"
        WHITESPACE@54..55 " "
        EQ@55..56 "="
        WHITESPACE@56..57 " "
        TUPLE_EXPR@57..59
          L_PAREN@57..58 "("
          R_PAREN@58..59 ")"
        SEMICOLON@59..60 ";"
      WHITESPACE@60..65 "\n    "
      LET_STMT@65..99
        LET_KW@65..68 "let"
        WHITESPACE@68..69 " "
        RECORD_PAT@69..93
          PATH@69..70
            PATH_SEGMENT@69..70
              NAME_REF@69..70
                IDENT@69..70 "S"
          WHITESPACE@70..71 " "
          RECORD_PAT_FIELD_LIST@71..93
            L_CURLY@71..72 "{"
            WHITESPACE@72..73 " "
            RECORD_PAT_FIELD@73..91
              ATTR@73..86
                POUND@73..74 "#"
                L_BRACK@74..75 "["
                PATH@75..78
                  PATH_SEGMENT@75..78
                    NAME_REF@75..78
                      IDENT@75..78 "cfg"
                TOKEN_TREE@78..85
                  L_PAREN@78..79 "("
                  IDENT@79..82 "any"
                  TOKEN_TREE@82..84
                    L_PAREN@82..83 "("
                    R_PAREN@83..84 ")"
                  R_PAREN@84..85 ")"
                R_BRACK@85..86 "]"
              WHITESPACE@86..87 " "
              NAME_REF@87..88
                IDENT@87..88 "x"
              COLON@88..89 ":"
              WHITESPACE@89..90 " "
              LITERAL_PAT@90..91
                LITERAL@90..91
                  INT_NUMBER@90..91 "1"
            WHITESPACE@91..92 " "
            R_CURLY@92..93 "}"
        WHITESPACE@93..94 " "
        EQ@94..95 "="
        WHITESPACE@95..96 " "
        TUPLE_EXPR@96..98
          L_PAREN@96..97 "("
          R_PAREN@97..98 ")"
        SEMICOLON@98..99 ";"
      WHITESPACE@99..100 "\n"
      R_CURLY@100..101 "}"
  WHITESPACE@101..102 "\n"