Yes, but I don't want to load all the parts at once.   I may have four
records that will be part of MyFoo,
but I only ever need one - maybe List3 in this case.    That's why
it's dynamic and why I have the
problem in the first place.

Bill

On Jul 28, 12:40 pm, Armando Blancas <armando_blan...@yahoo.com>
wrote:
> > It seem to me there should be some way to load a record at run time
> > without breaking the immutability laws.    Once the dynamic data is
> > loaded, the record becomes immutable and will never be changed
> > again.
>
> Actually, that's how records work and is exactly the behavior of the
> initial (foo. nil nil), after which the record is loaded and
> immutable. If the loaded data must be bound to MyFoo:
>
> (def MyFoo (foo. (load-data-from-file f1) (load-data-from-file f2)))
>
> or you might consider making Myfoo a ref instead of each subrecords,
> seems simpler that way.

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