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EMFTVM - Resolving source elements in refining mode [message #1066443]

Tue, 02 July 2013 16:54

Michal Kleczek

Messages: 31
Registered: May 2013

Member

Hi,
I have a simple transformation that for each package creates a subpackage:

rule Package {
  from
    source : D!Package
  to
    target : D!Package
    (
    ),
    subPackage : D!Package
    (
-- this is a containment relationship
      package <- target,
      name <- 'sub'
    )
}

Running it with EMFTVM gives:

org.eclipse.m2m.atl.emftvm.util.VMException: java.lang.IllegalArgumentException: Recursive containment not allowed for xxx.xxx.PackageImpl@21592707 (name: null)

Looks like "target" is resolved to "subPackage".
Not sure if it is a bug and if there is any workaround.

Thanks,
Michal

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Re: EMFTVM - Resolving source elements in refining mode [message #1066479 is a reply to message #1066443]

Tue, 02 July 2013 19:34

Dennis Wagelaar

Messages: 589
Registered: September 2012
Location: Belgium

Senior Member

Op 02-07-13 18:54, Michal Kleczek schreef:
> Looks like "target" is resolved to "subPackage".

You can test if it is caused by resolve() by using '<:=' instead of '<-'. The
'<:=' operator skips the source-target trace resolving step.

Cheers,
Dennis

Cheers,
Dennis

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Re: EMFTVM - Resolving source elements in refining mode [message #1066710 is a reply to message #1066479]

Wed, 03 July 2013 22:21

Michal Kleczek

Messages: 31
Registered: May 2013

Member

Dennis Wagelaar wrote on Tue, 02 July 2013 15:34

Op 02-07-13 18:54, Michal You can test if it is caused by resolve() by using '<:=' instead of '<-'. The
'<:=' operator skips the source-target trace resolving step.

Thanks - works great!
I wasn't aware of '<:=' operator - after you mentioned it I searched the docs and the only place it is present is a "fun point" in EMFTVM page Smile

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Re: EMFTVM - Resolving source elements in refining mode [message #1069878 is a reply to message #1066710]

Tue, 16 July 2013 19:38

Dennis Wagelaar

Messages: 589
Registered: September 2012
Location: Belgium

Senior Member

I've done some testing with this issue, and found that it is really a bug:

https://bugs.eclipse.org/bugs/show_bug.cgi?id=413110

The EMFTVM tracing mechanism needs to be adapted to deal with "mapsToSelf"
trace link source elements when running in refining mode.

Cheers,
Dennis

Cheers,
Dennis

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