RE: [sv-ac] match item

Sorry for the noise, but reading 1326, I remember that we do not want to
allow match item on Boolean abbreviation.

Still, the syntax looks over restricted to me. I think we should just
put a note saying that match item are not allowed on 

Boolean abbreviation. This is not for the 2009 version, but I think we
need to keep record on that.

 

Doron

 

________________________________

From: owner-sv-ac@server.eda.org [mailto:owner-sv-ac@server.eda.org] On
Behalf Of Bustan, Doron
Sent: Monday, October 27, 2008 5:43 AM
To: sv-ac@server.eda.org
Subject: [sv-ac] match item

 

All,

 

I am looking at 16.7 and there are some syntactic restrictions on the
use of match item that I do not understand.

If I understand correctly there are only two syntax productions that
allow adding match items:

 

| ( sequence_expr {, sequence_match_item } ) [ sequence_abbrev ]

| first_match ( sequence_expr {, sequence_match_item} )

 

So, one cannot write "(a ##1 b, v = 1)"  but can write "(a ##1 b, v = 1)
[*1]" which is semantically equivalent.

 

As far as I understand, we can always use the [*1] to do add the match
item, so there is no semantic meaning to the syntactic restrictions. 

 

Does anyone remember a reason for that? Or is it something we
overlooked?

 

Thanks

 

Doron

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