RE: [sv-bc] Extern modules question

Thanks. 
One thing that is confusing here is the reference to hierarchy, as $unit
is not exactly part of a hierarchy.

Shalom

> -----Original Message-----
> From: Gordon Vreugdenhil [mailto:gordonv@model.com] 
> Sent: Monday, June 16, 2008 5:02 PM
> To: Bresticker, Shalom
> Cc: sv-bc
> Subject: Re: [sv-bc] Extern modules question
> 
> I think (hope?) that the intention of this was really that 
> extern modules have normal lexical visibility.  I doubt that 
> the intent of the "only within the level of hierarchy in 
> which they were declared" phrase was to limit *lexical* 
> visibility; I expect that the intent there was to limit 
> *hierarchical* visibility.
> 
> So my answer to your question would be that a $unit extern 
> module declaration would be visible throughout the 
> compilation unit following normal lexical resolution (like a type).
> 
> Gord.
> 
> 
> Bresticker, Shalom wrote:
> > Hi,
> > 
> > 22.5 says, "Extern module declarations can appear at any 
> level of the 
> > instantiation hierarchy, but are visible only within the level of 
> > hierarchy in which they are declared."
> > 
> > If an extern module declaration appears in $unit, is it visible 
> > everywhere, like a regular module declaration, or only in that 
> > compilation-unit scope?
> > 
> > Thanks,
> > Shalom
> > 
> > Shalom Bresticker
> > Intel Jerusalem LAD DA
> > +972 2 589-6582
> > +972 54 721-1033
> > 
> > 
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> Gordon Vreugdenhil                                503-685-0808
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