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Xsemantics: Tycho build issue with extended DSL [message #1742920]

Thu, 08 September 2016 15:13

Lutz Wrage

Messages: 181
Registered: July 2009

Senior Member

I have the following setup:

Eclipse plugin project A contains BaseDSL with an xsemantics BaseDSLTypeSystem
Eclipse plugin project B contains ExtDSL with an xsemantics ExtDSLTypeSystem that extends BaseDSLTypeSystem

ExtDSL extends BaseDSL in the xtext grammar:

grammar ExtDSL with BaseDSL

In Eclipse, Xsemantics generates both type system implementations in their respective projects.

When using a tycho build, the type system for BaseDSL is generated in plugin A. However, I cannot find a configuration of the xtext-maven-plugin that generates the type system for ExtDSL in plugin B that references the BaseDSL type system.
I get validation errors:
"No judgment definition found " for judgements from BaseDSL.
If I override the BaseDSL judgements I get
"Cannot override judgment without system 'extends'.

It seems that the xtext-maven-plugin doesn't find anything from the BaseDSL project. I can't add the BaseDSL as a dependency because both plugins are being built together.

As a workaround I have added the BaseDSL source dir as a sourceRoot to the xtext-maven-plugin configuration. Now the generation and compilation works, BUT a second copy of the BaseDSLTypeSystem is generated in Plugin B. Is there a way to make the generation work without the duplication?

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Re: Xsemantics: Tycho build issue with extended DSL [message #1742924 is a reply to message #1742920]

Thu, 08 September 2016 15:25

Christian Dietrich

Messages: 14669
Registered: July 2009

Senior Member

hi,

is the stuff (classes, xsemantics file, ...) from base exported in the manifest/build.properties of base plugin
and on the classpath of ext in a way the xtext maven plugin can find it. is the second xtext maven plugin configured to look at the classpath?

Twitter : @chrdietrich
Blog : https://www.dietrich-it.de

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