About contextbuilder

Milian Wolff mail at milianw.de
Mon Mar 8 13:52:09 UTC 2010

Victor Vicente de Carvalho, 08.03.2010:
> > You can either use your generic AST node, or if you only ever have one
> > node which specifies an identifier, you can make your builder more type
> > safe by using the type of that node which gives you the identifier.
> After reading the pages you sent me the things are getting more clear,
> thanks.  I'm trying to implement an language plugin for erlang, which is
> functional and dynamically typed. So in my case the contextbuilder will be
> just for my functions?

Use the context builder to mark ranges of code that make up a "context". I 
don't know erlang, but if it is a functional language without any OOP features 
than yes, only function probably have their own contexts (in addition to the 
global TopDUContext making up a file).

> and about declaration builder? I can just give the
> "meaning" of my declaration or it is specting something more "real"?

I'm not sure about this one as I don't know Erlang, yet what I can tell from 
my (very limited) experience with Haskell:

Use declarations for functions, their arguments and type definitions. You 
probably don't have anything like "local variables" and the like, yet it's 
useful to jump to arguments, typedefs etc. pp.

> More helpful stuff:
> > http://api.kde.org/extragear-api/sdk-
> > 
> > apidocs/kdevplatform/language/duchain/html/classKDevelop_1_1AbstractConte
> > xtBuilder.html#_details
> > 
> > http://api.kde.org/extragear-api/sdk-
> > apidocs/kdevplatform/language/duchain/html/Implementing.html
> Thanks again, they were very helpful :)

Milian Wolff
mail at milianw.de
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