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How to implement a code generators workflow nowadays (MWE2 or Xtend2)? [message #1018475]

Wed, 13 March 2013 22:18

Torsten Juergeleit

Messages: 18
Registered: July 2009

Junior Member

While porting a code generator from Xtext 1.1 to Xtext 2.3 I'm wondering how to implement the generators internal workflow. This workflow consists of a few steps, e.g. reading / validating the model file, multiple m2m transformations with corresponding model validations and the final m2t transformation.

With a code generator which make heavily use of Xtend2 does it make sense implementing the generators workflow with MWE2?
Which advantages has an MWE2-based over an Xtend2-based workflow?

What kind of approach are you using to implement your code generators workflow?

Cheers,
Torsten

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Re: How to implement a code generators workflow nowadays (MWE2 or Xtend2)? [message #1020575 is a reply to message #1018475]

Mon, 18 March 2013 13:45

Jan Koehnlein

Messages: 760
Registered: July 2009
Location: Hamburg

Senior Member

An MWE2 workflow is interpreted, thus can be run without prior
compilation. That is especially useful on a build server, in case you
don't have to compile your generator.

Except from that, Xtend is of course much more flexible and expressive.

Am 13.03.13 23:18, schrieb Torsten Juergeleit:
> While porting a code generator from Xtext 1.1 to Xtext 2.3 I'm wondering
> how to implement the generators internal workflow. This workflow
> consists of a few steps, e.g. reading / validating the model file,
> multiple m2m transformations with corresponding model validations and
> the final m2t transformation.
>
> With a code generator which make heavily use of Xtend2 does it make
> sense implementing the generators workflow with MWE2?
> Which advantages has an MWE2-based over an Xtend2-based workflow?
>
> What kind of approach are you using to implement your code generators
> workflow?
>
> Cheers,
> Torsten

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Re: How to implement a code generators workflow nowadays (MWE2 or Xtend2)? [message #1020786 is a reply to message #1020575]

Mon, 18 March 2013 22:46

Torsten Juergeleit

Messages: 18
Registered: July 2009

Junior Member

Thanx Jan.
Any pointers on projects which are already using Xtend for the generators internal workflow?
Searching the web I only found projects which are using MWE2 for this.

Jan Kohnlein wrote on Mon, 18 March 2013 09:45

An MWE2 workflow is interpreted, thus can be run without prior
compilation. That is especially useful on a build server, in case you
don't have to compile your generator.

Except from that, Xtend is of course much more flexible and expressive.

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