lambda supports optional arguments, and does this by expanding out into a
core form that has flag arguments for if each argument is supplied. This is
tricky to type in TR and so I was investigating why it did it this way. I
did a micro benchmark on another method of expansion and it was 60%
My guess would be code explosion.
-Ian
- Original Message -
From: Eric Dobson eric.n.dob...@gmail.com
To: dev dev@racket-lang.org
Sent: Sun, 24 Feb 2013 12:51:12 -0500 (EST)
Subject: [racket-dev] Expansion of optional arguments in lambda
lambda supports optional arguments, and does this
Scratch that, didn't look very deeply at your solution.
-Ian
- Original Message -
From: J. Ian Johnson i...@ccs.neu.edu
To: Eric Dobson eric.n.dob...@gmail.com
Cc: dev dev@racket-lang.org
Sent: Sun, 24 Feb 2013 13:46:14 -0500 (EST)
Subject: Re: [racket-dev] Expansion of optional arguments
At Sun, 24 Feb 2013 09:51:12 -0800, Eric Dobson wrote:
lambda supports optional arguments, and does this by expanding out into a
core form that has flag arguments for if each argument is supplied. This is
tricky to type in TR and so I was investigating why it did it this way. I
did a micro
I think I figured out the actual answer which is semantics. If the
arguments are ever set!ed then my implementation will lead to a different
value.
(define (f a (b (begin (set! a 2) 3)))
a)
This should return 2 if b is not supplied, but in my expansion it would
return what ever was supplied
Sounds like a good thing to add to test suite!
Robby
On Sun, Feb 24, 2013 at 2:04 PM, Eric Dobson eric.n.dob...@gmail.comwrote:
I think I figured out the actual answer which is semantics. If the
arguments are ever set!ed then my implementation will lead to a different
value.
(define (f a
I mostly agree with Eli here, but it would be nice to be able to go from
the front of docs.racket-lang.org/ to a version specific page with more
goodies (including downloading). Can we make the version 5.3.3 text at
the upper right clickable?
Robby
On Sun, Feb 24, 2013 at 2:22 PM, Eli Barzilay
Two hours ago, Eli Barzilay wrote:
I think that this should be reverted, and instead make the older
docs more available: I'll make another column in the all-versions
page (main page download all versions).
Done, now. See the new links on the all versions page, and there's
also a link in the
On Sun, Feb 24, 2013 at 3:16 PM, Eli Barzilay e...@barzilay.org wrote:
Two hours ago, Eli Barzilay wrote:
I think that this should be reverted, and instead make the older
docs more available: I'll make another column in the all-versions
page (main page download all versions).
Done, now.
How about the docs link on the front page go to a page with the versions
all listed, and those links go to pages that look like the current
docs.racket-lang.org/ ?
On Sun, Feb 24, 2013 at 4:51 PM, Danny Yoo d...@hashcollision.org wrote:
On Sun, Feb 24, 2013 at 3:16 PM, Eli Barzilay
On Sun, Feb 24, 2013 at 3:55 PM, Robby Findler
ro...@eecs.northwestern.edu wrote:
How about the docs link on the front page go to a page with the versions
all listed, and those links go to pages that look like the current
docs.racket-lang.org/ ?
No, I do like that the default is to show the
40 minutes ago, Danny Yoo wrote:
On Sun, Feb 24, 2013 at 3:55 PM, Robby Findler
ro...@eecs.northwestern.edu wrote:
How about the docs link on the front page go to a page with the
versions all listed, and those links go to pages that look like
the current docs.racket-lang.org/ ?
No, I do
According to my rough count (and running setup with a -j 1),
compiling `math' takes 40% of the whole tree compilation.
--
((lambda (x) (x x)) (lambda (x) (x x))) Eli Barzilay:
http://barzilay.org/ Maze is Life!
_
At Sun, 24 Feb 2013 17:16:13 -0500, Eli Barzilay wrote:
Two hours ago, Eli Barzilay wrote:
I think that this should be reverted, and instead make the older
docs more available: I'll make another column in the all-versions
page (main page download all versions).
Done, now. See the new
A few minutes ago, Matthew Flatt wrote:
At Sun, 24 Feb 2013 17:16:13 -0500, Eli Barzilay wrote:
Two hours ago, Eli Barzilay wrote:
I think that this should be reverted, and instead make the older
docs more available: I'll make another column in the all-versions
page (main page
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