Right now, open-import is used in languages like WebDSL, Stratego, and Mobl, and caches the ASTs of files. Once one of those languages changes, the old AST may no longer be well-formed. The least we could do is clear the parse cache with every deployed plugin update, so this issue won’t bother end programmers.

Submitted by Lennart Kats on 4 May 2010 at 11:58

An implementation of this can be found in the WebDSL editor.

Link to file in svn repository

Yes, I’ve seen the approach used in the WebDSL editor. It would be nice to do something like that but then get the version number through the Eclipse API instead of an imported term.

See here for retrieving the plugins version from within Java.

Note also that the manifest of the plugin must include

Bundle-ActivationPolicy = lazy

as in this manifest, which tells Eclipse to start the Activator on first plugin class load.