SOURCE_FILE@0..39
  FN@0..38
    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..38
      L_CURLY@10..11 "{"
      WHITESPACE@11..16 "\n    "
      LET_STMT@16..36
        LET_KW@16..19 "let"
        WHITESPACE@19..20 " "
        SLICE_PAT@20..30
          L_BRACK@20..21 "["
          IDENT_PAT@21..22
            NAME@21..22
              IDENT@21..22 "a"
          COMMA@22..23 ","
          WHITESPACE@23..24 " "
          IDENT_PAT@24..25
            NAME@24..25
              IDENT@24..25 "b"
          COMMA@25..26 ","
          WHITESPACE@26..27 " "
          REST_PAT@27..29
            DOT2@27..29 ".."
          R_BRACK@29..30 "]"
        WHITESPACE@30..31 " "
        EQ@31..32 "="
        WHITESPACE@32..33 " "
        ARRAY_EXPR@33..35
          L_BRACK@33..34 "["
          R_BRACK@34..35 "]"
        SEMICOLON@35..36 ";"
      WHITESPACE@36..37 "\n"
      R_CURLY@37..38 "}"
  WHITESPACE@38..39 "\n"