public AST.COMRef makeInputVectorCOMRef(AST.Range rng)
{
// check for the range in the dictionary
AST.COMRef c;
if (!_all_vectors.TryGetValue(rng, out c))
{
// otherwise, create and cache it
Excel.Range com = rng.GetCOMObject(_app);
Excel.Worksheet ws = com.Worksheet;
Excel.Workbook wb = ws.Parent;
string wsname = ws.Name;
string wbname = wb.Name;
var path = new Microsoft.FSharp.Core.FSharpOption<string>(wb.Path);
int width = com.Columns.Count;
int height = com.Rows.Count;
c = new AST.COMRef(rng.getUniqueID(), wb, ws, com, path, wbname, wsname, Microsoft.FSharp.Core.FSharpOption<string>.None, width, height);
_all_vectors.Add(rng, c);
_do_not_perturb.Add(rng, true); // initially mark as not perturbable
}
return c;
}
