System.Xml.Schema.Compiler.CannonicalizePointlessRoot C# (CSharp) Méthode

        private XmlSchemaParticle CannonicalizePointlessRoot(XmlSchemaParticle particle) {
            if (particle == null) {
                return null;
            }
            XmlSchemaSequence xss;
            XmlSchemaChoice xsc;
            XmlSchemaAll xsa;
            decimal one = decimal.One;
            if ( (xss = (particle as XmlSchemaSequence)) != null ) {
                XmlSchemaObjectCollection items = xss.Items;
                int count = items.Count;
                if (count == 1) {
                    if (xss.MinOccurs == one && xss.MaxOccurs == one) {
                        return (XmlSchemaParticle)items[0];
                    }
                }
            }
            else if ( (xsc = (particle as XmlSchemaChoice)) != null ) {
                XmlSchemaObjectCollection items = xsc.Items;
                int count = items.Count;
                if (count == 1) {
                    if (xsc.MinOccurs == one && xsc.MaxOccurs == one) {
                        return (XmlSchemaParticle)items[0];
                    }
                }
                else if (count == 0) {
                    return XmlSchemaParticle.Empty;
                }
            }
            else if ( (xsa = (particle as XmlSchemaAll)) != null ) {
                XmlSchemaObjectCollection items = xsa.Items;
                int count = items.Count;
                if (count == 1) {
                    if (xsa.MinOccurs == one && xsa.MaxOccurs == one) {
                        return (XmlSchemaParticle)items[0];
                    }
                }
            }
            return particle;
        }