SOURCE_FILE
  FN
    FN_KW "fn"
    WHITESPACE " "
    NAME
      IDENT "foo"
    PARAM_LIST
      L_PAREN "("
      R_PAREN ")"
    WHITESPACE " "
    BLOCK_EXPR
      STMT_LIST
        L_CURLY "{"
        WHITESPACE "\n    "
        EXPR_STMT
          BIN_EXPR
            BIN_EXPR
              LITERAL
                INT_NUMBER "1"
              WHITESPACE " "
              PLUS "+"
              WHITESPACE " "
              PREFIX_EXPR
                STAR "*"
                REF_EXPR
                  AMP "&"
                  LITERAL
                    INT_NUMBER "2"
            WHITESPACE " "
            PLUS "+"
            WHITESPACE " "
            LITERAL
              INT_NUMBER "3"
          SEMICOLON ";"
        WHITESPACE "\n    "
        EXPR_STMT
          CAST_EXPR
            PREFIX_EXPR
              STAR "*"
              REF_EXPR
                AMP "&"
                LITERAL
                  INT_NUMBER "1"
            WHITESPACE " "
            AS_KW "as"
            WHITESPACE " "
            PATH_TYPE
              PATH
                PATH_SEGMENT
                  NAME_REF
                    IDENT "u64"
          SEMICOLON ";"
        WHITESPACE "\n    "
        EXPR_STMT
          PREFIX_EXPR
            STAR "*"
            CALL_EXPR
              PATH_EXPR
                PATH
                  PATH_SEGMENT
                    NAME_REF
                      IDENT "x"
              ARG_LIST
                L_PAREN "("
                LITERAL
                  INT_NUMBER "1"
                R_PAREN ")"
          SEMICOLON ";"
        WHITESPACE "\n    "
        EXPR_STMT
          REF_EXPR
            AMP "&"
            INDEX_EXPR
              PATH_EXPR
                PATH
                  PATH_SEGMENT
                    NAME_REF
                      IDENT "x"
              L_BRACK "["
              LITERAL
                INT_NUMBER "1"
              R_BRACK "]"
          SEMICOLON ";"
        WHITESPACE "\n    "
        EXPR_STMT
          RANGE_EXPR
            PREFIX_EXPR
              MINUS "-"
              LITERAL
                INT_NUMBER "1"
            DOT2 ".."
            LITERAL
              INT_NUMBER "2"
          SEMICOLON ";"
        WHITESPACE "\n"
        R_CURLY "}"
  WHITESPACE "\n"
