System.Xml.Xsl.XsltOld.Compiler.AddDocumentURI C# (CSharp) Méthode

        private void AddDocumentURI(string href)
        {
            Debug.Assert(!_documentURIs.Contains(href), "Circular references must be checked while processing xsl:include and xsl:import");
            _documentURIs.Add(href, null);
        }