/// <summary>
/// Replaces the data symbol of a value-flow with the specified symbol.
/// If the old data symbol is a logic vector, the specified symbol is replicated to a vector.
/// </summary>
/// <param name="vflow">a value-flow</param>
/// <param name="symbol">replacement symbol</param>
/// <returns>new value-flow - same target, but different data symbol</returns>
public static ValueFlow AsDontCareFlow(ValueFlow vflow, StdLogic symbol)
{
StdLogicVector?slvdata = vflow.Value as StdLogicVector?;
StdLogic? sldata = vflow.Value as StdLogic?;
if (slvdata.HasValue)
{
return(new ValueFlow(StdLogicVector.AllSame(symbol, slvdata.Value.Size), vflow.Target));
}
if (sldata.HasValue)
{
return(new ValueFlow(symbol, vflow.Target));
}
return(new ValueFlow(StdLogicVector.AllSame(symbol, Marshal.SerializeForHW(vflow.Value).Size), vflow.Target));
}
