RE: [sv-ec] Upward referencing rules question

No, I did mean that a1 is a variable name - an instance of a class
handle if you prefer.
The $display statement is inside the oo block, whose variable
declaration of C a1 hides the scope name M a1. According the rules in
2217, since the first name in a1.num() is a variable, .num() is
considered a member select of the variable a1, and the search does not
continue beyond that.

 

Dave

 

________________________________

From: Bresticker, Shalom [mailto:shalom.bresticker@intel.com] 
Sent: Thursday, February 07, 2008 7:52 PM
To: Rich, Dave; danielm; sv-ec@server.eda.org
Subject: RE: [sv-ec] Upward referencing rules question

 

I think you mean, "Because a1 is visible as a scope name ...".

 

Shalom

	 

	
________________________________


	From: owner-sv-ec@server.eda.org
[mailto:owner-sv-ec@server.eda.org] On Behalf Of Rich, Dave
	Sent: Friday, February 08, 2008 1:12 AM
	To: danielm; sv-ec@server.eda.org
	Subject: RE: [sv-ec] Upward referencing rules question

	Daniel,

	 

	It is an error as approved by mantis 2217. Because a1 is visible
as a variable name where the reference occurs, the search does not
continue beyond the block oo.

	 

	Dave

	 

	 

	
________________________________


	From: owner-sv-ec@server.eda.org
[mailto:owner-sv-ec@server.eda.org] On Behalf Of danielm
	Sent: Wednesday, February 06, 2008 3:40 AM
	To: sv-ec@server.eda.org
	Subject: [sv-ec] Upward referencing rules question

	 

	I cannot find rules for below reference in SV.I'm using
reference to a1.num in named block "oo". In this block there is object
variable named a1 but it has no "num" funcion 

	The question is: Should seraching for matching function be
stopped at this level or should the search be continued into module
scope - where is "a1" instance which have "num" function.

	So below case should return error, or it should compile and
return "5" in simulation?

	 

	 

	module M;
	 function integer num();
	  num= 5;
	 endfunction
	endmodule

	 

	class C;
	        reg r;
	endclass

	 

	module top;
	 M a1();

	 

	 initial begin : oo
	 C a1;
	 $display(a1.num());
	 end
	endmodule

	 

	DANiel

	
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