System.Xml.Xsl.Xslt.QilGenerator.CreateGlobalVarPar C# (CSharp) Method

        private void CreateGlobalVarPar(VarPar varPar)
        {
            Debug.Assert(varPar.NodeType == XslNodeType.Variable || varPar.NodeType == XslNodeType.Param);
            XmlQueryType xt = ChooseBestType(varPar);
            QilIterator it;
            if (varPar.NodeType == XslNodeType.Variable)
            {
                it = _f.Let(_f.Unknown(xt));
            }
            else
            {
                it = _f.Parameter(null, varPar.Name, xt);
            }
            it.DebugName = varPar.Name.ToString();
            varPar.Value = it;
            SetLineInfo(it, varPar.SourceLine);
            _scope.AddVariable(varPar.Name, it);
        }