System.Xml.Xsl.IlGen.XmlILOptimizerVisitor.CanFoldXsltConvertNonLossy C# (CSharp) Method

        private bool CanFoldXsltConvertNonLossy(QilNode ndLiteral, XmlQueryType typTarget) {
            QilNode ndDest;

            // Fold conversion to target type; if conversion cannot be folded, a XsltConvert node is returned
            ndDest = FoldXsltConvert(ndLiteral, typTarget);
            if (ndDest.NodeType == QilNodeType.XsltConvert)
                return false;

            // Convert back to source type; if conversion cannot be folded, a XsltConvert node is returned
            ndDest = FoldXsltConvert(ndDest, ndLiteral.XmlType);
            if (ndDest.NodeType == QilNodeType.XsltConvert)
                return false;

            // If original value is the same as the round-tripped value, then conversion is non-lossy
            return ExtractLiteralValue(ndLiteral).Equals(ExtractLiteralValue(ndDest));
        }