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[HUTN] Object names/identities [message #555519]

Thu, 26 August 2010 17:58

Eclipse User

Hi,

I've been trying out the HUTN format, and it's fairly easy to work with.
One thing that's useful us the way you specify object identities, e.g.
Person "Hallvard" { ... }. However, since the identity is mandatory, you
have to invent identities even for objects that you don't need to link
to. Would it make sense to make the object identity optional? E.g.
Person { ... }

Hallvard

Re: [HUTN] Object names/identities [message #555609 is a reply to message #555519]

Fri, 27 August 2010 06:37

Eclipse User

Person "John" {}  // Identifiable
Person {}               // Anonymous
Person "John";    // Identifiable, no body
Person;                 // Anonymous, no body

The last two forms are used in examples in the HUTN specification (but oddly are not possible with the grammar in the HUTN specification!)

Cheers,
Louis.

Re: [HUTN] Object names/identities [message #555631 is a reply to message #555609]

Fri, 27 August 2010 08:53

Eclipse User

On 27.08.10 12.37, Louis Rose wrote:
>
> Thanks for the feedback. I think this is a good idea. In fact, it's a
> part of the HUTN specification, and I've discovered that it's not
> possible in Epsilon HUTN due to a typo in the parser!

Aha! You see I tried, and when it didn't work I assumed I had
misunderstood the specification.

When will this be released and available through the install manager
(together with other recent fixes)?

Hallvard

Re: [HUTN] Object names/identities [message #555658 is a reply to message #555631]

Fri, 27 August 2010 10:07

Eclipse User

And I'm glad you mentioned this problem. I've been meaning to see whether Epsilon HUTN had this bug for a while.

We're thinking of putting out an interim update very soon (in the next week), which will include all of these fixes. Before we release the update, we just need to fix a bug with HUTN on Windows, which I'm investigating this afternoon.

If you use Twitter, you can follow us (@epsilonews), and we'll tweet when the new interim release is out.

Cheers,
Louis.

Re: [HUTN] Object names/identities [message #555922 is a reply to message #555658]

Mon, 30 August 2010 04:15

Eclipse User

On 27.08.10 16.07, Louis Rose wrote:
>
> We're thinking of putting out an interim update very soon (in the next
> week), which will include all of these fixes.

Great!

> If you use Twitter, you can follow us (@epsilonews), and we'll tweet
> when the new interim release is out.

Please announce it here, too!

Hallvard

Re: [HUTN] Object names/identities [message #557300 is a reply to message #555922]

Mon, 06 September 2010 10:22

Eclipse User

The interim version that fixes this is now available.

Cheers,
Dimitris

Hallvard Trætteberg wrote:
> On 27.08.10 16.07, Louis Rose wrote:
>>
>> We're thinking of putting out an interim update very soon (in the next
>> week), which will include all of these fixes.
>
> Great!
>
>> If you use Twitter, you can follow us (@epsilonews), and we'll tweet
>> when the new interim release is out.
>
> Please announce it here, too!
>
> Hallvard

Re: [HUTN] Object names/identities [message #557370 is a reply to message #557300]

Tue, 07 September 2010 03:27

Eclipse User

On 06.09.10 16.22, Dimitris Kolovos wrote:
> The interim version that fixes this is now available.

Thanks a lot! After updating I can use EDouble constants and the
shorthand notation for object creation in HUTN.

Hallvard

Re: [HUTN] Object names/identities [message #593277 is a reply to message #555519]

Fri, 27 August 2010 06:37

Eclipse User

Hi Hallvard,

Thanks for the feedback. I think this is a good idea. In fact, it's a part of the HUTN specification, and I've discovered that it's not possible in Epsilon HUTN due to a typo in the parser!

I've opened the following bug to cover the problem, and I'm about to commit a fix to SVN:

https://bugs.eclipse.org/bugs/show_bug.cgi?id=323804

This fix allows the following forms:

Person "John" {} // Identifiable
Person {} // Anonymous
Person "John"; // Identifiable, no body
Person; // Anonymous, no body

The last two forms are used in examples in the HUTN specification (but oddly are not possible with the grammar in the HUTN specification!)

Cheers,
Louis.

Re: [HUTN] Object names/identities [message #593305 is a reply to message #593277]

Fri, 27 August 2010 08:53

Eclipse User