If you take this program and fully-expand it in the macro stepper:
#lang racket
(struct posn (x y))
(define p1 (posn 1 2))
You see that the residual program has an application of the `posn1`
function, which is the hidden constructor. And indeed, the
fully-expanded program has a definition of
I'm working on enhancing struct-info to carry field names as symbols to do nice
hygienic things:
http://lists.racket-lang.org/users/archive/2014-July/063271.html
I now see that struct-out always provides all field accessors in the static
struct-info associated with the struct identifier.
This
On Tue, Jul 15, 2014 at 9:23 AM, J. Ian Johnson i...@ccs.neu.edu wrote:
I'm working on enhancing struct-info to carry field names as symbols to do
nice hygienic things:
http://lists.racket-lang.org/users/archive/2014-July/063271.html
I now see that struct-out always provides all field
Code will break if it uses struct to produce structs, provides a renamed an
accessor function, and uses an unhygienic feature to name the field.
The features I know of are struct-copy, struct* match patterns, and
contract-out's struct form.
No one but me probably did this, and that's what led
On 07/15/14 07:00, Matthew Flatt wrote:
The gc directory is Boehm's GC. We've modified it a little (grep for
PLTSCHEME), but we try not to maintain the GC itself, except to
upgrade every once in a while.
Sorry, I should to look the code before of to ask :) . I thought the
boehm gc version
Added!
At Tue, 8 Jul 2014 05:36:55 +0100, Matthew Flatt wrote:
Hi Jan,
That's a nice idea. Something similar --- but in a restricted form ---
is used internally to implement various primitive events. I think I see
how to generalize it to work with more arbitrary events and non-atomic
On Tue, Jul 15, 2014 at 10:12 AM, J. Ian Johnson i...@ccs.neu.edu wrote:
Code will break if it uses struct to produce structs, provides a renamed an
accessor function, and uses an unhygienic feature to name the field.
The features I know of are struct-copy, struct* match patterns, and
7 matches
Mail list logo
