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Support a delay without a statement in nex_input(). 

Add code to check for a plain delay statement (just a delay).
When one is found generate a null statement and do not add it
(the null statement) to result.
This commit is contained in:
Cary R 2008-12-29 13:02:21 -08:00 committed by Stephen Williams
parent 21f33085f0
commit 24f98905aa
1 changed files with 3 additions and 2 deletions
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5
net_nex_input.cc
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@ -246,7 +246,7 @@ NexusSet* NetBlock::nex_input(bool rem_out)
NexusSet*tmp = cur->nex_input(rem_out);
/* Add the current input set to the accumulated input set. */
result->add(*tmp);
if (tmp != 0) result->add(*tmp);
delete tmp;
/* Add the current outputs to the accumulated output set,
@ -345,10 +345,11 @@ NexusSet* NetForever::nex_input(bool rem_out)
*
* The nex_input set is the input set of the <statement>. Do *not*
* include the input set of the <expr> because it does not affect the
* result.
* result. The statement can be omitted.
*/
NexusSet* NetPDelay::nex_input(bool rem_out)
{
if (statement_ == 0) return 0;
NexusSet*result = statement_->nex_input(rem_out);
return result;
}