[alexandria-devel] Fwd: PROG1-LET

[Nikodemus Siivola]

Oops, missed the list.

---------- Forwarded message ----------
From: Nikodemus Siivola <nikodemus at random-state.net>
Date: Mon, Oct 27, 2008 at 11:32 PM
Subject: Re: [alexandria-devel] PROG1-LET
To: "Tobias C. Rittweiler" <tcr at freebits.de>


On Mon, Oct 27, 2008 at 9:52 PM, Tobias C. Rittweiler <tcr at freebits.de> wrote:

> I know from experience that this scheme comes up occasionally, but I
> think it's an abuse of macros. It's purely a syntactic abbreviation that
> does neither save much typing nor does the name improve readability.

I'm inclined to agree:

 (PROG1-LET (X (FOO))
  (BAR X)
  (QUUX X))

is easily taken to mean

 (LET ((X (FOO)))
  (PROG1
      (BAR X)
    (QUUX X)))

(Well, I'm not sure about abuse part, but readability seems to suffer.)

Cheers,

 -- Nikodemus