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Meta-Model Spy Suggestion [message #547250] Fri, 16 July 2010 06:25
Ed Willink is currently offline Ed Willink
Messages: 4061
Registered: July 2009
Senior Member
Hi

A suggestion: perhaps for Sphinx, perhaps for Modisco. Sorry; no way
that I have time.

When developing tooling I can spend quite a bit of time working out why
my meta-models are mis-behaving. Typical problems are:

No meta-model
- incorrect URI
- no plugin
- no content type registration
Wrong meta-model
- incorrect URI
- platform:/plugin rather than platform:/resource
- there is an unobserved validation error
Two meta-models
- incorrect URI
- both platform:/resource and platform:/plugin
- conflicting content types
- genmodel not rerun: one tool uses Ecore another Java model view

I hope that ordinary users don't have as much trouble as I do.

After uncovering my most recent stupidity, it seemed that it would be
really helpful if there was a Meta-Model Spy that could expand out from
a ResourceSet

- provide a MetaModel Browser
- of what is in the ResourceSet
- of what is visible but not in the ResourceSet
- of what is not visible
- show error/warning markers from
running validation
Java differencing a rerun of genmodel
Ecore differencing platform:/resource and platform:/plugin
....

Given such a project-neutral debugging tool, EMF or individual projects
might voluntary comply with an API to publish the required starting
context for the MMSPY.

Regards

Ed Willink
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