Certainly. I've been experimenting with a compiler backed by LLVM, and
using its IR builder, I often wish to create a function, define its
body, then return the function. This usually takes the form of:
(prog1-let (func (llvm:add-function ...))
(setf (llvm:linkage func) :internal
[...]
On Tue, Apr 10, 2012 at 10:13:33AM +0300, Nikodemus Siivola wrote:
WHEN-LET and IF-LET have a fairly common use-case ... where in a
typical case the /relative/ reduction in lines of code is a
substantial 33% -- and they are also classic: been around forever,
re-invented independently by
On Sat, Apr 7, 2012 at 4:34 PM, Nikodemus Siivola
nikode...@random-state.net wrote:
On 7 April 2012 23:25, Benjamin Saunders ral...@gmail.com wrote:
PROG1-LET is a binding macro modeled closely after WHEN-LET and
friends, which I have regularly found useful in code to implement the
On Sun, Apr 08, 2012 at 12:33:55PM +0200, Tamas K Papp wrote:
I usually ... implement this pattern using the ANAPHORA
library. Your macro would of course be a better solution if, for
some reason, one doesn't want to use an anaphoric macro
Yeah, that's the idea. As with all the other macros in
On Sun, Apr 08, 2012 at 06:24:33PM +0600, Attila Lendvai wrote:
it's not substantially shorter than the alternatives
True. However, the same can be said of every other macro in
bindings.lisp, and this does not seem to have precluded their
inclusion. It certainly does not preclude my glad use of
PROG1-LET is a binding macro modeled closely after WHEN-LET and
friends, which I have regularly found useful in code to implement the
create, modify, return pattern common in some imperative
code. As a simple and, I believe, widely useful macro, I'd like to see
this enter into Alexandria proper.
