Hello Bill,
On Wed, Dec 2, 2009 at 3:26 PM, BCS <n...@anon.com> wrote:
Hello Sergey,
They can, but I question if it's the best way to do it in those
languages. Generating code and running it at runtime seems to be
pointless. Why have the intermediate step with the code? I have
something I want to do, so I use encode it as one abstraction (a
DSL), translate it into another (the host language) and then compute
it in a third (the runtime). If it's all at runtime anyway, why not
just use the runtime to evaluate/interpret the DSL directly.
You may be able to memoize the generated code so you only have to
generate it once per run, but use it many times.
Probably performance is the reason you wouldn't want to reinterpret
the DSL from scratch every use. Even dynamic language users have
their limits on how long they're willing to wait for something to
finish.
--bb
Yes, some of the performance issue (that I didn't bring up) can be addressed.
But what about the points I did bring up? Like added conceptual complexity
and another degree of separation between what you want and what you get?
