SOURCE_FILE@0..74
  FN@0..73
    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..73
      L_CURLY@9..10 "{"
      WHITESPACE@10..15 "\n    "
      EXPR_STMT@15..26
        LOOP_EXPR@15..26
          LABEL@15..18
            LIFETIME@15..17 "\'a"
            COLON@17..18 ":"
          WHITESPACE@18..19 " "
          LOOP_KW@19..23 "loop"
          WHITESPACE@23..24 " "
          BLOCK_EXPR@24..26
            L_CURLY@24..25 "{"
            R_CURLY@25..26 "}"
      WHITESPACE@26..31 "\n    "
      EXPR_STMT@31..48
        WHILE_EXPR@31..48
          LABEL@31..34
            LIFETIME@31..33 "\'b"
            COLON@33..34 ":"
          WHITESPACE@34..35 " "
          WHILE_KW@35..40 "while"
          WHITESPACE@40..41 " "
          CONDITION@41..45
            LITERAL@41..45
              TRUE_KW@41..45 "true"
          WHITESPACE@45..46 " "
          BLOCK_EXPR@46..48
            L_CURLY@46..47 "{"
            R_CURLY@47..48 "}"
      WHITESPACE@48..53 "\n    "
      FOR_EXPR@53..71
        LABEL@53..56
          LIFETIME@53..55 "\'c"
          COLON@55..56 ":"
        WHITESPACE@56..57 " "
        FOR_KW@57..60 "for"
        WHITESPACE@60..61 " "
        IDENT_PAT@61..62
          NAME@61..62
            IDENT@61..62 "x"
        WHITESPACE@62..63 " "
        IN_KW@63..65 "in"
        WHITESPACE@65..66 " "
        TUPLE_EXPR@66..68
          L_PAREN@66..67 "("
          R_PAREN@67..68 ")"
        WHITESPACE@68..69 " "
        BLOCK_EXPR@69..71
          L_CURLY@69..70 "{"
          R_CURLY@70..71 "}"
      WHITESPACE@71..72 "\n"
      R_CURLY@72..73 "}"
  WHITESPACE@73..74 "\n"