[erlang-questions] [semi-ot] introducing constants and include (that can include erlang code) in efene

Richard O'Keefe <>
Wed Aug 17 06:31:19 CEST 2011


On 17/08/2011, at 12:43 AM, Nahuel Greco wrote:

> On Tue, Aug 16, 2011 at 6:26 AM, Mariano Guerra
> <> wrote:
>> 
>> I don't know a way to mutate the body of a function at runtime, what
>> can be done right now in efene is that if the expression can be
>> calculated at compile time, you can execute it then and just put the
>> result in the bytecode:

Concerning hygienic macros, the crucial thing is that identifiers in
the expansion of a macro refer to those visible at its definition
point, unless they come from arguments.  This can be handled by
renaming, which doesn't sound terribly hacky to me.

Other functional programming communities have experienced some
difficulty with evaluating expressions at compile time; the results
can be very big, and they can be kept far longer than you really
want them to be.




More information about the erlang-questions mailing list