SOURCE_FILE@0..52
  FN@0..51
    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..51
      STMT_LIST@9..51
        L_CURLY@9..10 "{"
        WHITESPACE@10..15 "\n    "
        EXPR_STMT@15..36
          BLOCK_EXPR@15..36
            ATTR@15..19
              POUND@15..16 "#"
              L_BRACK@16..17 "["
              META@17..18
                PATH@17..18
                  PATH_SEGMENT@17..18
                    NAME_REF@17..18
                      IDENT@17..18 "A"
              R_BRACK@18..19 "]"
            WHITESPACE@19..20 " "
            STMT_LIST@20..36
              L_CURLY@20..21 "{"
              WHITESPACE@21..22 " "
              TRY_EXPR@22..34
                ATTR@22..26
                  POUND@22..23 "#"
                  L_BRACK@23..24 "["
                  META@24..25
                    PATH@24..25
                      PATH_SEGMENT@24..25
                        NAME_REF@24..25
                          IDENT@24..25 "B"
                  R_BRACK@25..26 "]"
                WHITESPACE@26..27 " "
                MACRO_CALL@27..33
                  PATH@27..30
                    PATH_SEGMENT@27..30
                      NAME_REF@27..30
                        IDENT@27..30 "bar"
                  BANG@30..31 "!"
                  TOKEN_TREE@31..33
                    L_PAREN@31..32 "("
                    R_PAREN@32..33 ")"
                QUESTION@33..34 "?"
              WHITESPACE@34..35 " "
              R_CURLY@35..36 "}"
        WHITESPACE@36..41 "\n    "
        REF_EXPR@41..49
          ATTR@41..45
            POUND@41..42 "#"
            L_BRACK@42..43 "["
            META@43..44
              PATH@43..44
                PATH_SEGMENT@43..44
                  NAME_REF@43..44
                    IDENT@43..44 "C"
            R_BRACK@44..45 "]"
          WHITESPACE@45..46 " "
          AMP@46..47 "&"
          TUPLE_EXPR@47..49
            L_PAREN@47..48 "("
            R_PAREN@48..49 ")"
        WHITESPACE@49..50 "\n"
        R_CURLY@50..51 "}"
  WHITESPACE@51..52 "\n"