(Sorry for replying _so_ late...)
On Tue, 9 Aug 2005, Larry Wall wrote:
I kinda like Autrijus's idea that meta just means guts. In
classical Greek, meta just means with. The fancy philosophical
meaning of aboutness isn't there, but is a backformation from
terms such as metaphysics.
On Thu, Aug 11, 2005 at 01:35:14AM +0800, Autrijus Tang wrote:
On Wed, Aug 10, 2005 at 07:32:01PM +0200, TSa wrote:
you wrote:
Perl 6 in its unannotated form is also (mostly) a typeless languages,
with only the five builtin types, much like Perl 5 is.
Counting the sigil quadriga as 4,
Larry Wall skribis 2005-08-09 16:19 (-0700):
So either something in the context tells us what Foo means, or
it will be taken as a list operator that hasn't been declared yet.
Is there, by the way, a pragma to force predeclaration of subs, to gain
compile time typo checking?
Juerd
--
On Wed, Aug 10, 2005 at 10:47:47AM +0200, Juerd wrote:
: Larry Wall skribis 2005-08-09 16:19 (-0700):
: So either something in the context tells us what Foo means, or
: it will be taken as a list operator that hasn't been declared yet.
:
: Is there, by the way, a pragma to force predeclaration
On Wed, Aug 10, 2005 at 10:12:45AM -0700, Larry Wall wrote:
We can get away with this in Perl 6 because bindings to positionals
happen lazily. So all we have to check for syntactically is that we
don't have a subsequent declaration that changes the syntax from list
to unary (or none-ary).
HaloO,
Luke Palmer wrote:
On 8/10/05, TSa [EMAIL PROTECTED] wrote:
Here is an example of a 2D distance method
role Point
{
has Num $.x;
has Num $.y;
}
method distance( Point $a, Point $b -- Num )
{
return sqrt( ($a.x - $b.x)**2 - ($a.y - $b.y)**2);
}
[..]
# This
HaloO Autrijus,
you wrote:
Perl 6 in its unannotated form is also (mostly) a typeless languages,
with only the five builtin types, much like Perl 5 is.
Counting the sigil quadriga as 4, what is the fifth element?
And $it.does(LookGood)?
--
$TSa.greeting := HaloO; # mind the echo!
On Wed, Aug 10, 2005 at 07:32:01PM +0200, TSa wrote:
you wrote:
Perl 6 in its unannotated form is also (mostly) a typeless languages,
with only the five builtin types, much like Perl 5 is.
Counting the sigil quadriga as 4, what is the fifth element?
@ $ % ::
In Perl5, :: is replaced by
HaloO,
Larry Wall wrote:
It might be a mistake to call these isa relationships though. I really
only care about
Package does Object.
Module does Package.
Role does Module.
Class does Role.
OK, I've added that and the Set type in my little type lattice.
With your Object still
Stevan,
Up until today, I thought I had a good idea of how your metamodel
works, but now I'm confused. My main sticking point is that a class
Foo seems to have three different aspects:
Foo
class(Foo)
meta(Foo)
For each of these, could you please try to explain:
1) Roughly what its
Guten Tag Herr Sandlaß,
On Aug 9, 2005, at 4:48 AM, TSa (Thomas Sandlaß) wrote:
HaloO,
Stevan Little wrote:
Here is a 10,000 ft view of the metamodel prototype I sketched out
the other day
(http://svn.openfoundry.org/pugs/perl5/Perl6-MetaModel/docs/
10_000_ft_view.pod). It should shed a
HaloO,
Stuart Cook wrote:
So far, this is what I have picked up; some/most of it is probably wrong:
At least your confusion matches nicely with mine :)
~ Foo ~
Is a type that variables etc. can be declared to have
Is not an object
= I'm really not sure about this...
Bare Foo is a
HaloO Stevan,
you wrote:
Guten Tag Herr Sandlaß,
you know that a formal German greeting in a collequial
environment can be interpreted as unfriendly? I don't
do that but just wanted to state the fact.
The next level where a 1:n relation exists is below meta(Foo) to pure
meta.
Not
On Tue, Aug 09, 2005 at 06:36:28PM +0200, TSa wrote:
But Smalltalk is a typeless language that dispatches along the lines
of the (meta)class/(meta)object links. I propose to call this kind
of thing slot dispatch and reserve single and multi method dispatch for
the type based approach. Don't
Stuart,
On Aug 9, 2005, at 9:25 AM, Stuart Cook wrote:
Stevan,
Up until today, I thought I had a good idea of how your metamodel
works, but now I'm confused. My main sticking point is that a class
Foo seems to have three different aspects:
Foo
class(Foo)
meta(Foo)
For each of these, could
On Aug 9, 2005, at 12:36 PM, TSa wrote:
HaloO Stevan,
you wrote:
Guten Tag Herr Sandlaß,
you know that a formal German greeting in a collequial
environment can be interpreted as unfriendly? I don't
do that but just wanted to state the fact.
My apologies, no unfriendliness intended :)
The
On Aug 9, 2005, at 10:52 AM, TSa wrote:
~ Foo ~
Is a type that variables etc. can be declared to have
Is not an object
= I'm really not sure about this...
Bare Foo is a namespace lookup.
Yes, TSa is right. Everything below this is Type-stuff and I will leave
that to him (up until the
On Tue, Aug 09, 2005 at 03:54:23PM -0400, Stevan Little wrote:
: Stuart,
:
: On Aug 9, 2005, at 9:25 AM, Stuart Cook wrote:
: Stevan,
:
: Up until today, I thought I had a good idea of how your metamodel
: works, but now I'm confused. My main sticking point is that a class
: Foo seems to have
Larry,
On Aug 9, 2005, at 7:19 PM, Larry Wall wrote:
: So far, this is what I have picked up; some/most of it is probably
: wrong:
:
: ~ Foo ~
: Is a type that variables etc. can be declared to have
:
: That is one way to look at it I suppose. The reality is that there
will
: be no actual
Hello All,
Since autrijus is now busy porting the P5 metamodel prototype into
Haskell for use in Pugs, I have decided to begin work on documenting
the Perl6::MetaModel prototype modules more thoroughly. The first step
I see in this is to define a Meta Object Protocol (aka - the stuff you
can
Coming in late here, but it seems odd to have an actual class called
MetaClass. The meta-object protocols with which I am familiar have the
concept of a metaclass (a class whose instances are themselves classes), and
the class Class is such a metaclass, but where does a class named MetaClass
fit
Mark,
On Aug 8, 2005, at 4:26 PM, Mark Reed wrote:
Coming in late here, but it seems odd to have an actual class called
MetaClass. The meta-object protocols with which I am familiar have
the
concept of a metaclass (a class whose instances are themselves
classes), and
the class Class is
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