On Monday, 25 August 2014 at 17:16:10 UTC, Idan Arye wrote:
This CAN NOT BE DONE at compile-time, since the compiler
doesn't know at compile time the exact subclass of the instance
it'll get at runtime. To clarify: I'm not talking about the
creation of the multi-method mechanism - which *can*
On Monday, 25 August 2014 at 02:04:43 UTC, Aerolite wrote:
On Monday, 25 August 2014 at 01:34:14 UTC, Idan Arye wrote:
On Monday, 25 August 2014 at 01:10:32 UTC, Aerolite wrote:
-- No syntax modification (unless you want the feature to be
optional)
If this ever gets into the core language,
On Monday, 25 August 2014 at 07:36:22 UTC, Idan Arye wrote:
Are you suggesting the compiler will try to resolve the
polymorphism at compile-time, looking at all possible paths
that lead to a function call to check all possible runtime
values it's object arguments can get?
I've argued for
On Monday, 25 August 2014 at 07:36:22 UTC, Idan Arye wrote:
If multi-dispatching is done at compile-time, it can't rely on
the object's runtime type - only on the static type of the
reference that holds it. This is no different than regular
function overloading that we already have.
Well any
On Monday, 25 August 2014 at 08:45:15 UTC, Ola Fosheim Grøstad
wrote:
However, why do you want multiple dispatch? I cannot think of
any application level use scenario where you have two class
hierarchies that you have no control over. So I don't really
see the value of multiple dispatch in a
On Monday, 25 August 2014 at 10:16:29 UTC, Aerolite wrote:
Well there are a few go-to use-cases, the handling of collisions
between objects in a game-engine being the most well-known
(which
requires Double-Dispatch).
I think a game engine is better off using a simple table or a
more
On Monday, 25 August 2014 at 10:02:41 UTC, Aerolite wrote:
On Monday, 25 August 2014 at 07:36:22 UTC, Idan Arye wrote:
If multi-dispatching is done at compile-time, it can't rely on
the object's runtime type - only on the static type of the
reference that holds it. This is no different than
On Monday, 25 August 2014 at 17:16:10 UTC, Idan Arye wrote:
* Alternative implementations need to implement them(even
though the frontend is shared, there can always be some
complications(plus I think mutli-methods might need some
backend modifications as well, thhoguh I'm no expert on that
On Monday, 25 August 2014 at 17:28:45 UTC, Ola Fosheim Grøstad
wrote:
Then extend the typeinfo of classes in the first param with a
minimal typeid and 2D table that lists all combinations that
the custom linker can find based on the mangling?
Maybe it would be better to put in the restriction
Hey all,
I was surprised to learn yesterday that D does not actually
support Multiple-Dispatch, also known as Multimethods. Why is
this? Support for this feature is already present in Scala, C#
4.0, Groovy, Clojure, etc... Would it not make sense for D to
remain competitive in this regard?
Aerolite:
I was surprised to learn yesterday that D does not actually
support Multiple-Dispatch, also known as Multimethods. Why is
this? Support for this feature is already present in Scala, C#
4.0, Groovy, Clojure, etc... Would it not make sense for D to
remain competitive in this regard?
I
On Sunday, 24 August 2014 at 23:42:51 UTC, Aerolite wrote:
Hey all,
I was surprised to learn yesterday that D does not actually
support Multiple-Dispatch, also known as Multimethods. Why is
this? Support for this feature is already present in Scala, C#
4.0, Groovy, Clojure, etc... Would it not
On Sunday, 24 August 2014 at 23:42:51 UTC, Aerolite wrote:
So what seems to be the situation here?
Hi Aerolite,
I've never used multiple dispatch in any language, but from
looking at the C# syntax here[1]:
ReactSpecialization(me as dynamic, other as dynamic);
You should be able to
On Monday, 25 August 2014 at 00:20:26 UTC, Vladimir Panteleev
wrote:
dynamic!ReactSpecialization(me, other);
Here's a very basic implementation:
http://dpaste.dzfl.pl/5150ca9c13f4
Idan Arye is also working on functional pattern matching for
object references:
On Monday, 25 August 2014 at 00:08:25 UTC, Jonathan M Davis wrote:
On Sunday, 24 August 2014 at 23:42:51 UTC, Aerolite wrote:
Hey all,
I was surprised to learn yesterday that D does not actually
support Multiple-Dispatch, also known as Multimethods. Why is
this? Support for this feature is
On Monday, 25 August 2014 at 00:36:40 UTC, Vladimir Panteleev
wrote:
On Monday, 25 August 2014 at 00:20:26 UTC, Vladimir Panteleev
wrote:
dynamic!ReactSpecialization(me, other);
Here's a very basic implementation:
http://dpaste.dzfl.pl/5150ca9c13f4
Idan Arye is also working on functional
On Monday, 25 August 2014 at 00:08:25 UTC, Jonathan M Davis wrote:
At this point, if something can be implemented in a library
rather than in the language, the odds are low that it will be
solved in the language. The language is very powerful and
already a bit complicated, so usually the
On Monday, 25 August 2014 at 00:20:26 UTC, Vladimir Panteleev
wrote:
On Sunday, 24 August 2014 at 23:42:51 UTC, Aerolite wrote:
So what seems to be the situation here?
Hi Aerolite,
I've never used multiple dispatch in any language, but from
looking at the C# syntax here[1]:
On Monday, 25 August 2014 at 00:42:41 UTC, Idan Arye wrote:
Speaking of library solutions, I checked with my `castSwitch`
PR and it managed to implement single-argument multi-dispatch:
https://github.com/D-Programming-Language/phobos/pull/1266#issuecomment-53217374
I'll try to get it to
On Monday, 25 August 2014 at 01:10:32 UTC, Aerolite wrote:
-- No syntax modification (unless you want the feature to be
optional)
If this ever gets into the core language, it absolutely must be
optional! Think of the implications of having this as the default
and only behavior:
* Every
On Monday, 25 August 2014 at 01:34:14 UTC, Idan Arye wrote:
On Monday, 25 August 2014 at 01:10:32 UTC, Aerolite wrote:
-- No syntax modification (unless you want the feature to be
optional)
If this ever gets into the core language, it absolutely must be
optional! Think of the implications of
On Mon, 25 Aug 2014 01:14:19 +
Aerolite via Digitalmars-d-learn digitalmars-d-learn@puremagic.com
wrote:
I just can't help but think that really, such a feature should be
at the language level.
this is the first topic about multiple-dispatch in at least... eh... 6
months (maybe more).
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