System.Runtime.Serialization.Formatters.Binary.ObjectReader.GetType C# (CSharp) Method

        internal Type GetType(BinaryAssemblyInfo assemblyInfo, string name)
        {
            Type objectType = null;

            if (((_previousName != null) && (_previousName.Length == name.Length) && (_previousName.Equals(name))) &&
                ((_previousAssemblyString != null) && (_previousAssemblyString.Length == assemblyInfo._assemblyString.Length) && (_previousAssemblyString.Equals(assemblyInfo._assemblyString))))
            {
                objectType = _previousType;
            }
            else
            {
                objectType = Bind(assemblyInfo._assemblyString, name);
                if (objectType == null)
                {
                    Assembly sourceAssembly = assemblyInfo.GetAssembly();

                    if (_isSimpleAssembly)
                    {
                        GetSimplyNamedTypeFromAssembly(sourceAssembly, name, ref objectType);
                    }
                    else
                    {
                        objectType = FormatterServices.GetTypeFromAssembly(sourceAssembly, name);
                    }

                    // here let us do the security check 
                    if (objectType != null)
                    {
                        CheckTypeForwardedTo(sourceAssembly, objectType.Assembly, objectType);
                    }
                }

                _previousAssemblyString = assemblyInfo._assemblyString;
                _previousName = name;
                _previousType = objectType;
            }
            return objectType;
        }

 internal ObjectMap(string objectName, string[] memberNames, BinaryTypeEnum[] binaryTypeEnumA, object[] typeInformationA, int[] memberAssemIds, ObjectReader objectReader, int objectId, BinaryAssemblyInfo assemblyInfo, SizedArray assemIdToAssemblyTable)
 {
     this.isInitObjectInfo = true;
     this.objectName       = objectName;
     this.memberNames      = memberNames;
     this.binaryTypeEnumA  = binaryTypeEnumA;
     this.typeInformationA = typeInformationA;
     this.objectReader     = objectReader;
     this.objectId         = objectId;
     this.assemblyInfo     = assemblyInfo;
     if (assemblyInfo == null)
     {
         throw new SerializationException(Environment.GetResourceString("Serialization_Assembly", new object[] { objectName }));
     }
     this.objectType  = objectReader.GetType(assemblyInfo, objectName);
     this.memberTypes = new Type[memberNames.Length];
     for (int i = 0; i < memberNames.Length; i++)
     {
         InternalPrimitiveTypeE ee;
         string str;
         Type   type;
         bool   flag;
         BinaryConverter.TypeFromInfo(binaryTypeEnumA[i], typeInformationA[i], objectReader, (BinaryAssemblyInfo)assemIdToAssemblyTable[memberAssemIds[i]], out ee, out str, out type, out flag);
         this.memberTypes[i] = type;
     }
     this.objectInfo = objectReader.CreateReadObjectInfo(this.objectType, memberNames, null);
     if (!this.objectInfo.isSi)
     {
         this.objectInfo.GetMemberTypes(memberNames, this.objectInfo.objectType);
     }
 }