[Ecls-list] regression involving macro expansion, GETHASH, SETF, and HASH-SET

Gabriel Dos Reis gdr at cs.tamu.edu
Sun Jan 1 20:15:58 UTC 2012

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

| On Sun, Jan 1, 2012 at 7:34 PM, Gabriel Dos Reis <gdr at cs.tamu.edu> wrote:
|     A fresh update of my local copy of ECL CVS version shows a regression
|     involving macro expansion, GETHASH, SETF and HASH-SET.  In short, after
|     expansion, the arguments to HASH-SET seems to be switched.
| Thanks for reporting. The problem is not actually related to the hash
| functions. ECL now includes a tiny SETF form optimizer that simplifies some
| expressions, trying to reduce the number of LET bindings that are generated.
| Your macro reordered the list of arguments w.r.t the list produced by the
| get-setf-expansion and this confused the optimizer. I will upload a patch
| tonight.

Thanks for the detective work.

-- Gaby

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