[sv-bc] dotted names and interfaces

LRM:
"A hierarchical name and a member select into a structure, union, class 
or covergroup object share the same syntactic form of a sequence of name 
components separated by periods. Such names are called dotted names"
and later:
"The distinguishing aspect of a hierarchical name is that the first 
component of the name must match a scope name while the first name 
component of a member select must match a variable name."

I cannot find in LRM exact definition of what is the scope. I've found 
definition like this : "scope_nameis either a subroutine name, a module, 
program, or interface instance name or a generate block name." but it is 
not full

There is at least 2 more constructs which share dotted name syntax - 
which  are not explicitly mentioned above
  - reference to interface port item  module uut(interface ip) initial 
ip.m=1; // what is ip.m???
  - reference to virtual interface items
Assuming that those are not listed in a member select part of definition 
- both of those should be treated as hierarchical references with all 
consequences?
IMHO 2nd  rather should be treated as member select as virtual interface 
it self varaible so text could be changed:
"A hierarchical name and a member select into a structure, union, class, 
virtual interface or covergroup object share the same syntactic form of 
a sequence of name components separated by periods. Such names are 
called dotted names"

But I'm not sure what about ref to interface port items - those are not 
member selects for sure - but are they hierarchical references?
You can reference to a type by interface port and you cannot do this by 
hier reference. What about indexing with non constant select on arrays 
of intances which are disallowed for hier refs are those also illegal 
for interface port arrays?

DANiel




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