At 9:27 PM -0400 9/4/02, Ken Fox wrote:
>Dan Sugalski wrote:
>>At 9:10 AM -0400 9/4/02, [EMAIL PROTECTED] wrote:
>>>So, just to clarify, does that mean that multi-dispatch is (by definition)
>>>a run-time thing, and overloading is (by def) a compile time thing?
>>
>>No. They can be both compile ti
Brent Dax wrote:
> Aaron Sherman:
> sub abs($num is int){ return $num>=0 ?? $num :: -$num }
> ^
> I believe that should be (int $num).
and there is a »abs« in core.ops.
Anyway, before implementing a bunch of builtins, it should be organized
a little, where they
From: Trey Harris [EMAIL PROTECTED]
> Properties are meant to be out-of-band information; miko's
> suggestion would have this property setting the *value* of
> the variable.
Ah, but my exact point is that the default *isn't* set immediately. The
property is held until the sub is called. If the
On Wed, 4 Sep 2002 17:29:27 -0400 (EDT), Trey Harris wrote:
> In a message dated Wed, 4 Sep 2002, Jonathan Scott Duff writes:
> > So, each time I use a hypothetical, I have to be concious of which
> > variables are currently in scope? Perl can't help be with this task
> > because how does it know
On Thu, 2002-09-05 at 01:47, Brent Dax wrote:
> Aaron Sherman:
> # Ok, so without knowing what the XS-replacement will look like
> # and without knowing what we're doing with
> # filehandle-functions (is tell() staying or does it get
> # removed in favor of $fh.tell()) and a whole lot of other
On Thu, 2002-09-05 at 01:47, Brent Dax wrote:
> Aaron Sherman:
> The one thing I notice all over the place is:
>
> sub abs($num is int){ return $num>=0 ?? $num :: -$num }
Another thing I'm not sure on... how do you force numeric, but not
integer typing on a parameter? Is that C or C<+$var
On Thu, 2002-09-05 at 03:18, Leopold Toetsch wrote:
> Brent Dax wrote:
>
> > Aaron Sherman:
> > sub abs($num is int){ return $num>=0 ?? $num :: -$num }
> >^
> > I believe that should be (int $num).
>
>
> and there is a »abs« in core.ops.
I'll remove that then, and r
On 5 Sep 2002, Aaron Sherman wrote:
> On Thu, 2002-09-05 at 01:47, Brent Dax wrote:
> > Aaron Sherman:
>
> > The one thing I notice all over the place is:
> >
> > sub abs($num is int){ return $num>=0 ?? $num :: -$num }
>
> Another thing I'm not sure on... how do you force numeric, but not
In a message dated Thu, 5 Sep 2002, Luke Palmer writes:
> Why would bitwise have anything but integer signatures. What does
> 4.56 | 2.81 mean? Also, should perl lossily convert real to int, or give
> an error if it can't?
Seems to me that that's a decision that has to be made for each function
(Sorry for responding to my own post, and on a tangential point at that,
but...)
In a message dated Thu, 5 Sep 2002, Trey Harris writes:
> In a message dated Thu, 5 Sep 2002, Luke Palmer writes:
> > Why would bitwise have anything but integer signatures. What does
> > 4.56 | 2.81 mean? Also, s
On Thu, Sep 05, 2002 at 09:57:07AM -0400, Aaron Sherman wrote:
> On Thu, 2002-09-05 at 03:18, Leopold Toetsch wrote:
> > Brent Dax wrote:
> >
> > > Aaron Sherman:
> > > sub abs($num is int){ return $num>=0 ?? $num :: -$num }
> > > ^
> > > I believe that should be (int $num)
In doing the builtins, I just named the file "Builtins.p6m" without
thinking. In retrospect, I think it would be nice to have a file
extension *in addition to* ".pm" that is unambiguously Perl 6. "p6m"
would seem obvious. This way, you can have your own module's Foo.pm and
Foo.p6m side-by-side whi
Nicholas Clark wrote:
[ PerlUndef vs int vs num ]
> If I understand things correctly, all the parrot ops dealing in integer
> registers keep the result in integer registers, floating point in floating
> point registers. By default the perl6 language will carry on treating
> numbers as "numbers"
Erik Steven Harrison wrote:
> Is it just me or is the 'is' property syntax a little
> too intuitive? Seems like everywhere I turn, the
> proposed syntax to solve a problem is to apply a
> property.
That's because most of the problems we're discussing are solved
by changing the semantics of
Erik Steven Harrison wrote:
> I know that the property syntax is pseudo established,
> but I'm beggining to become a bit jaded about all the
> built in properties were building. What about good ol'
> aliases?
>
> sub hidden (str $name, int $force := $override) {...}
I'm not keen on it becaus
Jonathan Scott Duff wrote:
> This continues to make no sense to me. The "hypotheticality" of a
> variable seems quite orthogonal to what you do with it (bind, assign,
> whatever). Why should these two things be intimate?
Because what you do with a hypothetical has to be reversible.
And binding
Ken Fox wrote:
> I'm messing around with regex code generation by
> converting first to a grammar. The modifiers seem
> to need intimate knowledge of regex -> grammar
> conversion. This may be a quirk of my approach.
> People using tree traversal or generating code
> directly from the regex might
On Wed, 2002-09-04 at 22:46, Ken Fox wrote:
>rule iso_date { $year:=(\d{4}) -
>$month:=(\d{2}) -
>$day:=(\d{2}) }
You mean C<< \d<4> >>, etc. I presume.
Damian Conway wrote:
> I would imagine that modifiers would be passed some
> kind of hierarchical representation of the rule
> they're modifying (i.e. a parse tree of it), and
> would be expected to manipulate that structure
> representation.
Excellent. Will there be an abstract syntax for tree
r
Damian Conway wrote:
> Because what you do with a hypothetical has to be reversible.
> And binding is far more cheaply reversible than assignment.
Why not leave it in the language spec then? If it's too
hard to implement, then the first release of Perl 6 can
leave it out. Someday somebody might c
On Thu, Sep 05, 2002 at 03:38:03PM +, Damian Conway wrote:
> Jonathan Scott Duff wrote:
> > This continues to make no sense to me. The "hypotheticality" of a
> > variable seems quite orthogonal to what you do with it (bind, assign,
> > whatever). Why should these two things be intimate?
>
>
On Thu, 2002-09-05 at 04:31, Damian Conway wrote:
>sub hidden (str $name, int $force is aka($override)) {...}
Hang on a moment! In your original answer to this question, you used
the "is named('alias')" syntax, but now you are suggesting using the
sigil in the syntax. So, should it really b
This is still a monolith, but it's getting better. It's now stored in
P6C/Builtins/CORE.p6m in my tree. More functions are coded, and I now
differentiate between the functions that need external support (e.g.
POSIX/libc functions) and those that just need to be written (e.g.
sort).
I think I've c
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