System.Xml.Serialization.XmlSerializationILGen.GenerateGetSerializer C# (CSharp) Method

        private void GenerateGetSerializer(Dictionary<string, string> serializers, XmlMapping[] xmlMappings, TypeBuilder serializerContractTypeBuilder)
        {
            ilg = new CodeGenerator(serializerContractTypeBuilder);
            ilg.BeginMethod(
                typeof(XmlSerializer),
                "GetSerializer",
                new Type[] { typeof(Type) },
                new string[] { "type" },
                CodeGenerator.PublicOverrideMethodAttributes);

            for (int i = 0; i < xmlMappings.Length; i++)
            {
                if (xmlMappings[i] is XmlTypeMapping)
                {
                    Type type = xmlMappings[i].Accessor.Mapping.TypeDesc.Type;
                    if (type == null)
                        continue;
                    if (!type.GetTypeInfo().IsPublic && !type.GetTypeInfo().IsNestedPublic)
                        continue;
                    // DDB172141: Wrong generated CS for serializer of List<string> type
                    if (type.GetTypeInfo().IsGenericType || type.GetTypeInfo().ContainsGenericParameters)
                        continue;
                    ilg.Ldarg("type");
                    ilg.Ldc(type);
                    ilg.If(Cmp.EqualTo);
                    {
                        ConstructorInfo ctor = CreatedTypes[(string)serializers[xmlMappings[i].Key]].GetConstructor(
                            CodeGenerator.InstanceBindingFlags,
                            Array.Empty<Type>()
                            );
                        ilg.New(ctor);
                        ilg.Stloc(ilg.ReturnLocal);
                        ilg.Br(ilg.ReturnLabel);
                    }
                    ilg.EndIf();
                }
            }
            ilg.Load(null);
            ilg.Stloc(ilg.ReturnLocal);
            ilg.Br(ilg.ReturnLabel);
            ilg.MarkLabel(ilg.ReturnLabel);
            ilg.Ldloc(ilg.ReturnLocal);
            ilg.EndMethod();
        }