Re: question

Just for information:
It seemms that getTypeName is called twice for one
variable. Even if it has no dot.
It might be usefull to know this.

--- "Konstantin L. Metlov" <[email protected]> wrote:
> Dear Damien,
> 
> > Is there a way to get the list of variables
> > referenced/used in an expression?
> >
> > Using the resolver it could be possible:
> > - create an empty list before compiling
> > - compiling
> >  - in getTypeName calls, add the var to the list
> >
> > Is it right? Is there a better way?
> Yes, this is the right way. I'm not sure if there
> can be anything really 
> better for this task. The method "getTypeName(String
> name)" of the 
> resolver is called for each of recognized
> identifiers as soon as they are 
> recognized by the parser. It is really the best
> place to collect variable 
> names.
> 
> One thing to note is that if the variable name
> contains dots (e.g. looks 
> like "name1.name2.name3") the getTypeName() will be
> called three times 
> (with arguments "name1", "name1.name2" and
> "name1.name2.name3"), which 
> reflects the hierarchical (tree-like) structure of
> DV namespace. In this 
> case, the longest sequence for which getTypeName()
> still returns a 
> non-null value is considered to be the DV name, but
> the variables on the 
> preceding level of the hierarchy (e.g. "name1" and
> "name1.name2" in the 
> above example) must also be defined (e.g.
> (getTypeName("name1") != null) 
> and (getTypeName("name1.name2")!=null)).
> 
> With the best regards,
>                            Konstantin.
> 


		
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