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Run as... for your DSL [message #1269434]

Tue, 11 March 2014 21:48

Hallvard Traetteberg

Messages: 673
Registered: July 2009
Location: Trondheim, Norway

Senior Member

Hi,

I've made a DSL that generates JUnit tests and would like to be able to
use Run as-> JUnit on my own file type. I know how to make my
configuration type and launcher, but in this case I would like to just
delegate to the existing JUnit launcher, as if the user had used Run
as->JUnit test on the generated JUnit test. My first attempt was to
register an adapter that adapts an IFile to an IType, but it never
seemed to be activated :-(

Note that this would be a handy general mechanism, i.e. any Xtext-based
DSL, be able to use Run as on the DSL file, and delegate to and launch
any generated file.

Is this possible?

Hallvard

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Re: Run as... for your DSL [message #1269787 is a reply to message #1269434]

Wed, 12 March 2014 07:38

Joerg Reichert

Messages: 80
Registered: July 2009
Location: Leipzig

Member

Hi Hallvard,

have a look at https://github.com/meysholdt/eclipse_jdt_junit_runners
It is used by http://www.xpect-tests.org/ where you can select Run as JUnit Test on a xt file.

Best regards,
Joerg

--
Need professional support for Xtext and EMF?
Go to: http://xtext.itemis.com

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Re: Run as... for your DSL [message #1270040 is a reply to message #1269787]

Wed, 12 March 2014 12:38

Hallvard Traetteberg

Messages: 673
Registered: July 2009
Location: Trondheim, Norway

Senior Member

I've just noticed that xbase has a launching package. It it related to
what is provided by xpect?

How are the xbase launching classes used?

Hallvard

On 12.03.14 08:38, Joerg Reichert wrote:
> Hi Hallvard,
>
> have a look at https://github.com/meysholdt/eclipse_jdt_junit_runners
> It is used by http://www.xpect-tests.org/ where you can select Run as
> JUnit Test on a xt file.
>
> Best regards,
> Joerg

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Re: Run as... for your DSL [message #1270057 is a reply to message #1270040]

Wed, 12 March 2014 12:57

Joerg Reichert

Messages: 80
Registered: July 2009
Location: Leipzig

Member

I'm not sure if its related, I've only seen that Xpect defines an extension to hook into the JUnit launcher:
https://github.com/meysholdt/Xpect/blob/master/org.xpect.ui/plugin.xml#L401

Maybe this is a good starting point, although XPECT does a lot more adaptions as you may need.

Joerg

--
Need professional support for Xtext and EMF?
Go to: http://xtext.itemis.com

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Re: Run as... for your DSL [message #1270058 is a reply to message #1270057]

Wed, 12 March 2014 12:59

Joerg Reichert

Messages: 80
Registered: July 2009
Location: Leipzig

Member

For Xtend it is realized here:
https://github.com/eclipse/xtext/blob/master/plugins/org.eclipse.xtend.ide/plugin.xml#L1013

--
Need professional support for Xtext and EMF?
Go to: http://xtext.itemis.com

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Re: Run as... for your DSL [message #1270402 is a reply to message #1270058]

Thu, 13 March 2014 00:21

Hallvard Traetteberg

Messages: 673
Registered: July 2009
Location: Trondheim, Norway

Senior Member

Thanks for the pointers! I managed to make it work, though it wasn't as
easy or streamlined as I hoped. With the help of the debugger I (think
I) understood how the adapter logic worked, and by copying relevant
plugin.xml extensions and xbase launching code I could make my code do
the same thing as Xtend/Xbase. However, I got the fealing that it should
have been enough to copy the plugin.xml extensions, but use my own
executable extension and inject my own subclass of
JavaElementDelegateJunitLaunch, but there seemed to be some interaction
with adapters registered by Xtend, so it didn't work.

Anyway, since it works I'm satisfied!

Hallvard

On 12.03.14 13:59, Joerg Reichert wrote:
> For Xtend it is realized here:
> https://github.com/eclipse/xtext/blob/master/plugins/org.eclipse.xtend.ide/plugin.xml#L1013
>

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