RE: [cdt-dev] Pluggable code completion filter (was: Using doxyge n comm

[Alain Magloire <alain@xxxxxxx>]

> -----Original Message-----
> From: cdt-dev-bounces@xxxxxxxxxxx [mailto:cdt-dev-bounces@xxxxxxxxxxx] On
> Behalf Of Ploett Norbert
> Sent: Wednesday, August 17, 2005 4:49 AM
> To: CDT General developers list.
> Subject: [cdt-dev] Pluggable code completion filter (was: Using doxygen
> comments to filter undesired code completion entries)
> 
> Hello Alain (and all)
> 
> [Alain Magloire]
> > Your PR brought some flaws to the contributing scheme:
> > - how to disable unwanted contributors
> > - how to set policies for contributors.
> > So far the only policy we have for completions (code assist) is in the
> > preference page:
> > Preferences --> C/C++ --> Editor --> Code Assist
> 
> Looking through the sources I had the idea that maybe the place where
> all the proposals from all the contributors are filtered is a strategic
> point to implement policies. Currently this filtering is hard-coded in
> the CCompletionProcessor2.computeCompletionProposals() method (below the
> line with the comment // remove duplicates but leave the ones with
> return types
> 
> So maybe this would be a good scheme:
> - A filter class for ICCompletionProposals can be contributed to an
> extension point (which is to be created).
> - The preference page (Preferences --> C/C++ --> Editor --> Code Assist)
> has a list of contributed filters, one of which can be selected by the
> user. The preference page may display additional parameter entries,
> depending on the filter which was selected, so the filter can be
> customized.
> - Any contributor of an ICHelpProvider can also contribute a filter
> which will give "his" proposals precedence over those of other
> ICHelpProviders, but the user is still free to choose the filtering
> strategy according to his desires.
> 
> In my example I noticed that the HelpCompletionContributor sets the
> relevance field of the ICCompletionProposals to 2 while the
> DOMCompletionContributor uses relevance 1. So I could contribute a
> filter which will display only those proposals with the maximum
> relevance. If the user will adopt my scheme (i.e. select the filter I
> contributed) then code completion will work the way I thought it should,
> if he will not then he must live with duplicate entries in this case.
> 
> What do you think?
> 

At first glance, it looks like a good idea, i.e. give the user the choice to
customize.  You may want to add this to the PR, I'm off for a week, so will
not be able to comment more your proposals.