Re: [cdt-dev] Indexer advice

[Alex Blewitt <alex.blewitt@xxxxxxxxx>]

Thanks, I hadn't realised point 4 at the time so will revisit our name  
and make a start on the PDOMLinkage subclass.

Alec

Sent from my (new) iPhone

On 16 Jul 2009, at 08:29, "Schorn, Markus"  
<Markus.Schorn@xxxxxxxxxxxxx> wrote:

> Alex,
> I think I gave a good summary on what you need to do for
> Objective C integration here:
> http://dev.eclipse.org/mhonarc/lists/cdt-dev/msg14431.html
>
> For indexing it would be points 1-4:
> 1) An AST:
>    * You'll need to define all the interfaces necessary to represent
> the syntax of Objective C. You can probably
>       reuse the interfaces for plain C and extend/add addtional ones  
> as
> requried.
>    * You need interfaces to represent the bindings.
>    see packages: org.eclipse.cdt.core.dom.ast,
> org.eclipse.cdt.core.dom.ast.c
>
>    * You need an implementation for the interfaces. Again you can
> probably reuse the implementation for plain
>       C and add what's needed. You will have to do your own IASTName,
> IASTTranslationUnit and all the bindings
>       because these interfaces return the linkage they belong to.
>    see packages: org.eclipse.cdt.internal.core.dom.parser,
> org.eclipse.cdt.internal.core.dom.parser.c
>
> 2) A parser to create the AST:
>    You probably want to reuse CPreprocessor (you'll need some
> extensions) for preprocessing. To do the
>    grammar you have the choice between extending the LR-parser for C  
> or
> extending
>    AbstractGnuSourceCodeParser or even GNUCSourceParser.
>
> 3) Semantics:
>   * Name resolution is started from IASTName. You need to link your
> ast-names to the name-resolution
>     algorthms.
>   see: CVisitor
>
> 4) Persistance:
>   * For your bindings you need two other implementations: One for the
> pdom and one for the composite index:
>   see packages org.eclipse.cdt.internal.core.pdom.c,
> org.eclipse.cdt.internal.core.index.composite.c
>   * Your implementation of ILinkage in this context (extenstion to
> PDOMLinkage) will take care of mapping
>     bindings from the ast to the index.
>
> Markus.
>
>
> > -----Original Message-----
> > From: cdt-dev-bounces@xxxxxxxxxxx
> > [mailto:cdt-dev-bounces@xxxxxxxxxxx] On Behalf Of Alex Blewitt
> > Sent: Thursday, July 16, 2009 8:49 AM
> > To: CDT General developers list.
> > Subject: [cdt-dev] Indexer advice
> > Importance: Low
> >
> > In order to start working on a number of features, I need to
> > get indexer support working in objectiveclipse. Since a lot
> > of this is driven by types which don't exist in the base
> > CDT's indexer, what's the best way forward? It doesn't look
> > like I can extend the set of indexed types with the current
> > indexer  - does this mean I need to roll my own?
> >
> > Lastly, obj-c has some interesting naming conventions for methods.
> > Wheras c/c++ have a single token <-> name mapping, that's not
> > the case for obj-c in all but the simple case. A method might
> > have the signature
> > doSomething:withSomething:andSomethingElse: but exist in a
> > call as [obj doSomething:1 withSomething:2 andSomethingElse:
> > 3] (c.f.
> > definition).
> >
> > The hyperlinking does highlight the single token (which is
> > probably OK from a UI perspective) but the jump-to-index
> > needs to be aware of the full name (since it's possible that
> > like Java methods, they may be overloaded with different
> > numbers of arguments).
> >
> > I'd appreciate your advice on the way I should go forwards with this.
> >
> > Alex
> >
> > Sent from my (new) iPhone
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