Esempio n. 1
0
        private ValueMember ApplyDefaultBehaviour(bool isEnum, AttributeFamily family, MemberInfo member, BasicList partialMembers)
        {
            if (member == null || (family == AttributeFamily.None && !isEnum))
            {
                return(null);                                                               // nix
            }
            Type effectiveType;

            switch (member.MemberType)
            {
            case MemberTypes.Field:
                effectiveType = ((FieldInfo)member).FieldType; break;

            case MemberTypes.Property:
                effectiveType = ((PropertyInfo)member).PropertyType; break;

            default:
                return(null);    // nothing doing
            }

            int    fieldNumber = 0;
            bool   isPacked    = false;
            string name        = null;
            bool   isRequired  = false;
            Type   itemType    = null;
            Type   defaultType = null;

            ResolveListTypes(effectiveType, ref itemType, ref defaultType);
            object[]   attribs = member.GetCustomAttributes(true);
            Attribute  attrib;
            DataFormat dataFormat   = DataFormat.Default;
            bool       ignore       = false;
            object     defaultValue = null;

            // implicit zero default
            switch (Type.GetTypeCode(effectiveType))
            {
            case TypeCode.Boolean: defaultValue = false; break;

            case TypeCode.Decimal: defaultValue = (decimal)0; break;

            case TypeCode.Single: defaultValue = (float)0; break;

            case TypeCode.Double: defaultValue = (double)0; break;

            case TypeCode.Byte: defaultValue = (byte)0;  break;

            case TypeCode.Char: defaultValue = (char)0; break;

            case TypeCode.Int16: defaultValue = (short)0; break;

            case TypeCode.Int32: defaultValue = (int)0; break;

            case TypeCode.Int64: defaultValue = (long)0; break;

            case TypeCode.SByte: defaultValue = (sbyte)0; break;

            case TypeCode.UInt16: defaultValue = (ushort)0; break;

            case TypeCode.UInt32: defaultValue = (uint)0; break;

            case TypeCode.UInt64: defaultValue = (ulong)0; break;

            default:
                if (effectiveType == typeof(TimeSpan))
                {
                    defaultValue = TimeSpan.Zero;
                }
                if (effectiveType == typeof(Guid))
                {
                    defaultValue = Guid.Empty;
                }
                break;
            }
            bool done = false;

            if (isEnum)
            {
                attrib = GetAttribute(attribs, "ProtoBuf.ProtoIgnoreAttribute");
                if (attrib != null)
                {
                    ignore = true;
                }
                else
                {
                    attrib      = GetAttribute(attribs, "ProtoBuf.ProtoEnumAttribute");
                    fieldNumber = Convert.ToInt32(((FieldInfo)member).GetValue(null));
                    if (attrib != null)
                    {
                        GetFieldName(ref name, attrib, "Name");
                        if ((bool)attrib.GetType().GetMethod("HasValue").Invoke(attrib, null))
                        {
                            fieldNumber = (int)GetMemberValue(attrib, "Value");
                        }
                    }
                }
                done = true;
            }
            if (!ignore && !done) // always consider ProtoMember
            {
                attrib = GetAttribute(attribs, "ProtoBuf.ProtoMemberAttribute");
                GetIgnore(ref ignore, attrib, attribs, "ProtoBuf.ProtoIgnoreAttribute");
                if (!ignore)
                {
                    GetFieldNumber(ref fieldNumber, attrib, "Tag");
                    GetFieldName(ref name, attrib, "Name");
                    GetFieldBoolean(ref isRequired, attrib, "IsRequired");
                    GetFieldBoolean(ref isPacked, attrib, "IsPacked");
                    GetDataFormat(ref dataFormat, attrib, "DataFormat");
                    done = fieldNumber > 0;
                }

                if (!done && partialMembers != null)
                {
                    foreach (ProtoPartialMemberAttribute ppma in partialMembers)
                    {
                        if (ppma.MemberName == member.Name)
                        {
                            GetFieldNumber(ref fieldNumber, ppma, "Tag");
                            GetFieldName(ref name, ppma, "Name");
                            GetFieldBoolean(ref isRequired, ppma, "IsRequired");
                            GetFieldBoolean(ref isPacked, ppma, "IsPacked");
                            GetDataFormat(ref dataFormat, ppma, "DataFormat");
                            if (done = fieldNumber > 0)
                            {
                                break;
                            }
                        }
                    }
                }
            }
            if (!ignore && !done && HasFamily(family, AttributeFamily.DataContractSerialier))
            {
                attrib = GetAttribute(attribs, "System.Runtime.Serialization.DataMemberAttribute");
                GetFieldNumber(ref fieldNumber, attrib, "Order");
                GetFieldName(ref name, attrib, "Name");
                GetFieldBoolean(ref isRequired, attrib, "IsRequired");
                done = fieldNumber > 0;
            }
            if (!ignore && !done && HasFamily(family, AttributeFamily.XmlSerializer))
            {
                attrib = GetAttribute(attribs, "System.Xml.Serialization.XmlElementAttribute");
                GetIgnore(ref ignore, attrib, attribs, "System.Xml.Serialization.XmlIgnoreAttribute");
                if (!ignore)
                {
                    GetFieldNumber(ref fieldNumber, attrib, "Order");
                    GetFieldName(ref name, attrib, "ElementName");
                }
                attrib = GetAttribute(attribs, "System.Xml.Serialization.XmlArrayAttribute");
                GetIgnore(ref ignore, attrib, attribs, "ProtoBuf.XmlIgnoreAttribute");
                if (!ignore)
                {
                    GetFieldNumber(ref fieldNumber, attrib, "Order");
                    GetFieldName(ref name, attrib, "ElementName");
                }
                done = fieldNumber > 0;
            }
            if (!ignore && (attrib = GetAttribute(attribs, "System.ComponentModel.DefaultValueAttribute")) != null)
            {
                defaultValue = GetMemberValue(attrib, "Value");
            }
            ValueMember vm = ((isEnum || fieldNumber > 0) && !ignore)
                ? new ValueMember(model, type, fieldNumber, member, effectiveType, itemType, defaultType, dataFormat, defaultValue)
                    : null;

            if (vm != null)
            {
                PropertyInfo prop = type.GetProperty(member.Name + "Specified", BindingFlags.Instance | BindingFlags.NonPublic | BindingFlags.Public,
                                                     null, typeof(bool), Helpers.EmptyTypes, null);
                if (prop != null)
                {
                    vm.SetSpecified(prop.GetGetMethod(true), prop.GetSetMethod(true));
                }
                else
                {
                    MethodInfo method = type.GetMethod("ShouldSerialize" + member.Name, BindingFlags.Instance | BindingFlags.NonPublic | BindingFlags.Public,
                                                       null, Helpers.EmptyTypes, null);
                    if (method != null && method.ReturnType == typeof(bool))
                    {
                        vm.SetSpecified(method, null);
                    }
                }
                if (!Helpers.IsNullOrEmpty(name))
                {
                    vm.SetName(name);
                }
                vm.IsPacked   = isPacked;
                vm.IsRequired = isRequired;
            }
            return(vm);
        }
Esempio n. 2
0
        private ValueMember ApplyDefaultBehaviour(bool isEnum, ProtoMemberAttribute normalizedAttribute)
        {
            MemberInfo member;

            if (normalizedAttribute == null || (member = normalizedAttribute.Member) == null)
            {
                return(null);                                                                              // nix
            }
            Type effectiveType;

            switch (member.MemberType)
            {
            case MemberTypes.Field:
                effectiveType = ((FieldInfo)member).FieldType; break;

            case MemberTypes.Property:
                effectiveType = ((PropertyInfo)member).PropertyType; break;

            default:
                return(null);    // nothing doing
            }


            Type itemType    = null;
            Type defaultType = null;

            ResolveListTypes(effectiveType, ref itemType, ref defaultType);
            object[]  attribs = member.GetCustomAttributes(true);
            Attribute attrib;

            object defaultValue = null;

            // implicit zero default
            switch (Type.GetTypeCode(effectiveType))
            {
            case TypeCode.Boolean: defaultValue = false; break;

            case TypeCode.Decimal: defaultValue = (decimal)0; break;

            case TypeCode.Single: defaultValue = (float)0; break;

            case TypeCode.Double: defaultValue = (double)0; break;

            case TypeCode.Byte: defaultValue = (byte)0;  break;

            case TypeCode.Char: defaultValue = (char)0; break;

            case TypeCode.Int16: defaultValue = (short)0; break;

            case TypeCode.Int32: defaultValue = (int)0; break;

            case TypeCode.Int64: defaultValue = (long)0; break;

            case TypeCode.SByte: defaultValue = (sbyte)0; break;

            case TypeCode.UInt16: defaultValue = (ushort)0; break;

            case TypeCode.UInt32: defaultValue = (uint)0; break;

            case TypeCode.UInt64: defaultValue = (ulong)0; break;

            default:
                if (effectiveType == typeof(TimeSpan))
                {
                    defaultValue = TimeSpan.Zero;
                }
                if (effectiveType == typeof(Guid))
                {
                    defaultValue = Guid.Empty;
                }
                break;
            }

            if ((attrib = GetAttribute(attribs, "System.ComponentModel.DefaultValueAttribute")) != null)
            {
                defaultValue = GetMemberValue(attrib, "Value");
            }
            ValueMember vm = ((isEnum || normalizedAttribute.Tag > 0))
                ? new ValueMember(model, type, normalizedAttribute.Tag, member, effectiveType, itemType, defaultType, normalizedAttribute.DataFormat, defaultValue)
                    : null;

            if (vm != null)
            {
                PropertyInfo prop = type.GetProperty(member.Name + "Specified", BindingFlags.Instance | BindingFlags.NonPublic | BindingFlags.Public,
                                                     null, typeof(bool), Helpers.EmptyTypes, null);
                if (prop != null)
                {
                    vm.SetSpecified(prop.GetGetMethod(true), prop.GetSetMethod(true));
                }
                else
                {
                    MethodInfo method = type.GetMethod("ShouldSerialize" + member.Name, BindingFlags.Instance | BindingFlags.NonPublic | BindingFlags.Public,
                                                       null, Helpers.EmptyTypes, null);
                    if (method != null && method.ReturnType == typeof(bool))
                    {
                        vm.SetSpecified(method, null);
                    }
                }
                if (!Helpers.IsNullOrEmpty(normalizedAttribute.Name))
                {
                    vm.SetName(normalizedAttribute.Name);
                }
                vm.IsPacked      = normalizedAttribute.IsPacked;
                vm.IsRequired    = normalizedAttribute.IsRequired;
                vm.OverwriteList = normalizedAttribute.OverwriteList;
                vm.AsReference   = normalizedAttribute.AsReference;
                vm.DynamicType   = normalizedAttribute.DynamicType;
            }
            return(vm);
        }