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problem with multiple template files [message #512057]

Wed, 03 February 2010 18:31

Matthieu

Messages: 10
Registered: February 2010

Junior Member

Hello,
I'm a new Xpand user and I try to describe Xpand tasks in several files.
Here is what I put in my workflow file :

<workflow>
	<bean class="org.eclipse.emf.mwe.utils.StandaloneSetup" platformUri=".."/>
	
	<component class="org.eclipse.emf.mwe.utils.DirectoryCleaner" directory="src-gen"/>
	
	<component class="org.eclipse.xtext.MweReader" uri="classpath:/model/MyModel.pck">
		<!-- this class will be generated by the xtext generator -->
		<register class="fr.ifsic.m1info.PckDslStandaloneSetup"/>
	</component>
	
	<component class="org.eclipse.xpand2.Generator">
		<metaModel class="org.eclipse.xtend.typesystem.emf.EmfRegistryMetaModel"/>
		<fileEncoding value="UTF-8"/>
		 <expand value="templates::MemoryContext::memorycontext FOR model"/>
		 <expand value="templates::Format::formats FOR model"/>
		 <expand value="templates::Instruction::instructions FOR model"/>
		 <expand value="templates::Pipeline::pipeline FOR model"/>
		 <expand value="templates::Simulator::simulator FOR model"/>
		 <expand value="templates::Assembler::assembler FOR model"/>
		<genPath value="src-gen"/>
	</component>
</workflow>

so I have 6 files named Format.xpt, Instruction.xpt, Pipeline.xpt, Simulator.xpt and Assembler.xpt but it seems that, even if every file is read, only the last one generates something (does each task erase the results of the previous one ?).

Well, if someone can help me; it's more readable using several files than using one big template with a lot of definition. Is their simply a way to use in a particular file a definition described in another one, or something like that ? It would help...

Thanks !

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Re: problem with multiple template files [message #512063 is a reply to message #512057]

Wed, 03 February 2010 14:00

Erhard Weinell

Messages: 39
Registered: January 2010
Location: Kassel, Germany

Member

Hello Matthieu,

technically, all your expand invocations write to the same output (which
can be changed), so your observation is correct.

Simple solution: Add a "main"-template which invokes the other ones.
This way, all code generation aspects including the order of template
invocation can be controlled from the templates.

Best regards,
Erhard weinell

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