On Tue, Mar 15, 2005 at 08:52:07AM -0800, Larry Wall wrote:
> : That is fine because the three thunks are registered to the fh
> : in evaluation order. What will be more fun is if they are all
> : part of some other lazy lists, which may be accessed in some
> : unpredictable order.
>
> You could
On Tue, Mar 15, 2005 at 12:46:49AM +0800, Autrijus Tang wrote:
: On Mon, Mar 14, 2005 at 05:28:29PM +0100, Miroslav Silovic wrote:
: > But it gets worse.
: >
: > my $lines = [ =$fh ];
: > seek($fh, 0);
: > my $lines2 = [ =$fh ];
: > close $fh;
: >
: > $lines2 must somehow remember that seek has h
[EMAIL PROTECTED] wrote:
On the other hand, we can alternatively specify that closing a
file handle must force all thunks associated to it, i.e. in this
case fill @lines with real data. Pugs can do that just fine, but I
have no idea how parrot is to achieve that...
But it gets worse.
my $lines
Larry Wall writes:
> The Principle of Maximum Differentiation of Similar Constructs also
> tends to argue for eager =. Plus there's the fact that it's the sort
> of restriction we can relax if we figure out how, but it would be hard
> to impose if people started to rely on lazy assignment and then
On Mon, Mar 14, 2005 at 07:04:12PM +0100, Thomas Sandlaß wrote:
: Yep. Does that put =, := etc into a category of operators that
: are hard to (usefully) overload in classes? I mean the eager =
: doesn't look like letting the left and right hand side have much
: to do or decide in the process---oth
: Given this Pugs program, t.p6:
:
: my $fh = open(@ARGS[0]);
: my @lines = =$fh;
: $fh.close();
: for @lines { print"$_" }
:
: running:
:
: pugs t.p6 t.p6
:
: produces no output. Move $fh.close() to after the for
: loop and all is well. Is this a bug?
I wonder if IO::All could provide some inspira
Larry Wall wrote:
The Principle of Maximum Differentiation of Similar Constructs also
tends to argue for eager =. Plus there's the fact that it's the sort
of restriction we can relax if we figure out how, but it would be hard
to impose if people started to rely on lazy assignment and then we
decid
The Principle of Maximum Differentiation of Similar Constructs also
tends to argue for eager =. Plus there's the fact that it's the sort
of restriction we can relax if we figure out how, but it would be hard
to impose if people started to rely on lazy assignment and then we
decided it was a bad id
On Mon, Mar 14, 2005 at 09:52:06AM -0700, Luke Palmer wrote:
: Perhaps lists by assignment are COW lazy. So they behave just like
: ordinary COW objects, except they can be lazy at the end:
:
: my @a = gather {
: for 1... {
: say;
: take
On Tue, Mar 15, 2005 at 12:21:19AM +0800, Autrijus Tang wrote:
: On Mon, Mar 14, 2005 at 08:06:08AM -0800, Larry Wall wrote:
: > On Mon, Mar 14, 2005 at 10:58:00PM +1100, Andrew Savige wrote:
: > : my $fh = open(@ARGS[0]);
: > : my @lines = =$fh;
: > : $fh.close();
: > : for @lines { print"$_" }
:
Autrijus Tang writes:
> On Mon, Mar 14, 2005 at 08:06:08AM -0800, Larry Wall wrote:
> > On Mon, Mar 14, 2005 at 10:58:00PM +1100, Andrew Savige wrote:
> > : my $fh = open(@ARGS[0]);
> > : my @lines = =$fh;
> > : $fh.close();
> > : for @lines { print"$_" }
> > :
> >
> > Hmm. It's probably a desig
On Mon, Mar 14, 2005 at 05:28:29PM +0100, Miroslav Silovic wrote:
> But it gets worse.
>
> my $lines = [ =$fh ];
> seek($fh, 0);
> my $lines2 = [ =$fh ];
> close $fh;
>
> $lines2 must somehow remember that seek has happened.
That is fine because the three thunks are registered to the fh
in evalu
On Mon, Mar 14, 2005 at 08:06:08AM -0800, Larry Wall wrote:
> On Mon, Mar 14, 2005 at 10:58:00PM +1100, Andrew Savige wrote:
> : my $fh = open(@ARGS[0]);
> : my @lines = =$fh;
> : $fh.close();
> : for @lines { print"$_" }
> :
>
> Hmm. It's probably a design bug. I'm wondering if we have to spec
On Mon, Mar 14, 2005 at 10:58:00PM +1100, Andrew Savige wrote:
: Given this Pugs program, t.p6:
:
: my $fh = open(@ARGS[0]);
: my @lines = =$fh;
: $fh.close();
: for @lines { print"$_" }
:
: running:
:
: pugs t.p6 t.p6
:
: produces no output. Move $fh.close() to after the for
: loop and all is
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