[Ecls-list] make-load-form fix

[Juan Jose Garcia Ripoll]

On Fri, 2006-05-26 at 20:38 +0200, Julian Stecklina wrote:
> Juan Jose Garcia Ripoll <lisp at arrakis.es> writes:
> > Ok, I see the typo in the original code. But I think it is much simpler
> > to create a constant list with the initial data except for sites which
> > reference the array itself or other non-printable structures. The latter
> > would then appear in a smaller number of initialization statements. I
> > will code that later.
> 
> Does this cover the case where the array is not trivially
> self-referential? Say if it contains a structure or cons which in turn
> references the array?

The way ECL's compiler handle complex constants is as follows:

     1. Add the constant to a hash table with an index to the position
        in the constant data table that is built at run time
     2. If the constant does not require a load form, add it to the
        string from which constant data is read at run time.
     3. If the constant requires a load form
             1. Invoke MAKE-LOAD-FORM to obtain a "make" and an
                "initialization" form.
             2. Compile the "make" form
             3. Compile the "init" form

As you see, the process is recursive. When the object that requires a
load form appears again in the construction ("make") or in the
initialization ("init") forms, the compiler will already know where to
fetch it from.

Juanjo

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