[Ecls-list] compiler-macro: spurious parameter reference?

Pascal J. Bourguignon pjb at informatimago.com
Sun Aug 29 20:12:13 UTC 2010

Juan Jose Garcia-Ripoll <juanjose.garciaripoll at googlemail.com> writes:

> On Sun, Aug 29, 2010 at 6:37 PM, Pascal J. Bourguignon <pjb at informatimago.com> wrote:
>     When compiling a compiler macro, the &whole form seems to be
>     referenced even if it is not
> This actually happens with all macros. Macros destructure forms:
> they always get the whole form to be parsed in a &whole variable and
> only by inspecting this list can they gather the values of their
> arguments.
> The current code uses the name of the variable given by the user to
> store the form that is then parsed to assign values for each of the
> macro arguments.
> So, in the end, the &whole variable is always referenced, but this
> happens way before it reaches the code supplied by the user.
> I supposed I could complicate the macroexpansion adding yet another
> LET form with a &whole variable that is only seen by the user, but
> it does not seem so urgent.

It's not urgent at all, but keep in mind that ASDF is ticklish about

__Pascal Bourguignon__                     http://www.informatimago.com/

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