| [photran] ITranslationUnit and Language Independence |
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He gang, I’m looking at the multi-language question from the
CModel and DOM/Index perspective. As I mentioned in Leo’s Project Model
proposal for *DT, my feeling is that the best point of entry into this world is
through ITranslationUnit. I have created an interface ILanguage which serves a
variety of purposes to allow language specialization of core functionality. I
have a method on ITranslationUnit called getLanguage() which would figure out
the language given the content type of the file that the TranslationUnit
represents. I have an extension point that allows language developers to
register an ILanguage implementation against a set of content types. The
getLanguage method takes advantage of this extension point. This stuff is in
HEAD right now, so you can check it out. The problem I now have is that there is a lot of
quasi-language dependant checking in ITranslationUnit, the main one being that
ITranslationUnits are only valid for a hard-coded subset of content types. I’d
like to get rid of this and add, where really necessary, the behaviour into
ILanguage. Any thoughts? Any counter suggestions on how to do this
correctly? Doug. |