On 19 Nov 2006, at 23:36, Joel E. Denny wrote:
The %destructor is only needed with output language C.
Currently, it's also useful for C++.
You mean, of one writes code in the common C/C++ subset. :-)
I think you, Akim, and I have all agreed that semantic types cannot
have
C++ destructors given Bison's current C++ skeletons. You need %
destructor
instead. That's what I'm referring to.
Not anymore:
I think that the %define tweak that enables one to include code
enables me to use my polymorphic C++ type, which I have used for
several years my own Bison tweaks. I am looking at this around these
days, though reality prevents me to do much work on it. I still need
a tweaked skeleton file, but it need just some code placement macros.
This is for untyped .y Bison; to type it, I need another tweak.
Basically, a way to trigger the Bison type system, plus a macro to
select the correct type in the runtime object.
Hans Aberg
