RE: [sv-ec] Upward referencing rules question

So if the variable a1 was ie byte - which cannot have num() method - then
what - searching will be hold or not?:
 
module M;
 function int foo(int y);
  return y;
 endfunction
endmodule
 
module top;
 M a1();
 
 initial begin : oo
 byte a1;
 $display(a1.foo(5));        // o tu
 end
endmodule
 
 
DANiel

  _____  

From: Rich, Dave [mailto:Dave_Rich@mentor.com] 
Sent: Friday, February 08, 2008 8:51 AM
To: Bresticker, Shalom; danielm; sv-ec@server.eda.org
Subject: 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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