internal static bool TryGetTag(MemberInfo member, out int tag, out string name, bool callerIsTagInference, out DataFormat format, out MemberSerializationOptions options)
{
name = member.Name;
format = DataFormat.Default;
tag = -1;
options = MemberSerializationOptions.None;
// check for delegates (don't even try!)
Type valueType;
switch (member.MemberType)
{
case MemberTypes.Property:
valueType = ((PropertyInfo)member).PropertyType;
break;
case MemberTypes.Field:
valueType = ((FieldInfo)member).FieldType;
break;
default: // not sure what this is!
return(false);
}
if (valueType.IsSubclassOf(typeof(Delegate)))
{
return(false);
}
// check for exclusion
if (AttributeUtils.GetAttribute <ProtoIgnoreAttribute>(member) != null ||
AttributeUtils.GetAttribute <ProtoPartialIgnoreAttribute>(member.ReflectedType,
delegate(ProtoPartialIgnoreAttribute ppia)
{ return(ppia.MemberName == member.Name); }) != null)
{
return(false);
}
// check against the property
ProtoMemberAttribute pm = AttributeUtils.GetAttribute <ProtoMemberAttribute>(member);
if (pm == null)
{ // check also against the type
pm = AttributeUtils.GetAttribute <ProtoPartialMemberAttribute>(member.ReflectedType,
delegate(ProtoPartialMemberAttribute ppma) { return(ppma.MemberName == member.Name); });
}
if (pm != null)
{
format = pm.DataFormat;
if (!string.IsNullOrEmpty(pm.Name))
{
name = pm.Name;
}
tag = pm.Tag;
options = pm.Options;
return(tag > 0);
}
ProtoContractAttribute pca = AttributeUtils.GetAttribute <ProtoContractAttribute>(member.DeclaringType);
if (pca != null && pca.ImplicitFields != ImplicitFields.None)
{
if (callerIsTagInference)
{
return(true); // short-circuit
}
List <MemberInfo> members = new List <MemberInfo>();
switch (pca.ImplicitFields)
{
case ImplicitFields.AllFields:
AddImplicitByDeclaringType(member.DeclaringType, members,
member.DeclaringType.GetFields(BindingFlags.Instance | BindingFlags.Public | BindingFlags.NonPublic));
break;
case ImplicitFields.AllPublic:
AddImplicitByDeclaringType(member.DeclaringType, members,
member.DeclaringType.GetFields(BindingFlags.Instance | BindingFlags.Public));
AddImplicitByDeclaringType(member.DeclaringType, members,
member.DeclaringType.GetProperties(BindingFlags.Instance | BindingFlags.Public));
break;
default:
throw new NotSupportedException("Unknown ImplicitFields option: " + pca.ImplicitFields);
}
members.Sort(delegate(MemberInfo x, MemberInfo y)
{
return(string.CompareOrdinal(x.Name, y.Name));
});
int index = members.IndexOf(member);
if (index >= 0)
{
tag = index + pca.ImplicitFirstTag;
return(true);
}
return(false);
}
XmlElementAttribute xe = AttributeUtils.GetAttribute <XmlElementAttribute>(member);
if (xe != null)
{
if (!string.IsNullOrEmpty(xe.ElementName))
{
name = xe.ElementName;
}
tag = xe.Order;
return(tag > 0);
}
XmlArrayAttribute xa = AttributeUtils.GetAttribute <XmlArrayAttribute>(member);
if (xa != null)
{
if (!string.IsNullOrEmpty(xa.ElementName))
{
name = xa.ElementName;
}
tag = xa.Order;
return(tag > 0);
}
return(false);
}
internal static bool HasOption(MemberSerializationOptions options, MemberSerializationOptions required)
{
return((options & required) == required);
}
/// <summary>
/// Supports various different property metadata patterns:
/// [ProtoMember] is the most specific, allowing the data-format to be set.
/// [DataMember], [XmlElement] are supported for compatibility.
/// In any event, there must be a unique positive Tag/Order.
/// </summary>
internal static bool TryGetTag(MemberInfo member, out int tag, out string name, out DataFormat format, out MemberSerializationOptions options)
{
return(TryGetTag(member, out tag, out name, false, out format, out options));
}
/// <summary>
/// Responsible for deciding how to encode/decode a given data-type; maybe
/// not the most elegant solution, but it is simple and quick.
/// </summary>
private static Property <T> CreateProperty <T>(Type type, ref DataFormat format, MemberSerializationOptions options)
{
if (type == typeof(int))
{
switch (format)
{
case DataFormat.Default:
case DataFormat.TwosComplement:
format = DataFormat.TwosComplement;
return(new PropertyInt32Variant <T>());
case DataFormat.ZigZag:
return(new PropertyInt32ZigZag <T>());
case DataFormat.FixedSize:
return(new PropertyInt32Fixed <T>());
}
}
if (type == typeof(long))
{
switch (format)
{
case DataFormat.Default:
case DataFormat.TwosComplement:
format = DataFormat.TwosComplement;
return(new PropertyInt64Variant <T>());
case DataFormat.ZigZag:
return(new PropertyInt64ZigZag <T>());
case DataFormat.FixedSize:
return(new PropertyInt64Fixed <T>());
}
}
if (type == typeof(uint))
{
switch (format)
{
case DataFormat.Default:
case DataFormat.TwosComplement:
format = DataFormat.TwosComplement;
return(new PropertyUInt32Variant <T>());
case DataFormat.FixedSize:
return(new PropertyUInt32Fixed <T>());
}
}
if (type == typeof(ulong))
{
switch (format)
{
case DataFormat.Default:
case DataFormat.TwosComplement:
format = DataFormat.TwosComplement;
return(new PropertyUInt64Variant <T>());
case DataFormat.FixedSize:
return(new PropertyUInt64Fixed <T>());
}
}
if (type == typeof(short))
{
switch (format)
{
case DataFormat.Default:
case DataFormat.TwosComplement:
format = DataFormat.TwosComplement;
return(new PropertyInt16Variant <T>());
case DataFormat.ZigZag:
return(new PropertyInt16ZigZag <T>());
}
}
if (type == typeof(byte[]))
{
format = DataFormat.Default; return(new PropertyBlob <T>());
}
if (type == typeof(byte))
{
format = DataFormat.TwosComplement; return(new PropertyByte <T>());
}
if (type == typeof(sbyte))
{
format = DataFormat.ZigZag; return(new PropertySByte <T>());
}
if (type == typeof(char))
{
format = DataFormat.TwosComplement; return(new PropertyChar <T>());
}
if (type == typeof(bool))
{
format = DataFormat.TwosComplement; return(new PropertyBoolean <T>());
}
if (type == typeof(string))
{
format = DataFormat.Default; return(new PropertyString <T>());
}
if (type == typeof(float))
{
format = DataFormat.FixedSize; return(new PropertySingle <T>());
}
if (type == typeof(double))
{
format = DataFormat.FixedSize; return(new PropertyDouble <T>());
}
if (type == typeof(Uri))
{
format = DataFormat.Default; return(new PropertyUri <T>());
}
if (type == typeof(Guid))
{
switch (format)
{
case DataFormat.Group: return(new PropertyGuidGroup <T>());
case DataFormat.Default: return(new PropertyGuidString <T>());
}
}
if (type == typeof(TimeSpan))
{
switch (format)
{
case DataFormat.Group: return(new PropertyTimeSpanGroup <T>());
case DataFormat.Default: return(new PropertyTimeSpanString <T>());
case DataFormat.FixedSize: return(new PropertyTimeSpanFixed <T>());
}
}
if (type == typeof(DateTime))
{
switch (format)
{
case DataFormat.Group: return(new PropertyDateTimeGroup <T>());
case DataFormat.Default: return(new PropertyDateTimeString <T>());
case DataFormat.FixedSize: return(new PropertyDateTimeFixed <T>());
}
}
if (type == typeof(decimal))
{
switch (format)
{
case DataFormat.Group: return(new PropertyDecimalGroup <T>());
case DataFormat.Default: return(new PropertyDecimalString <T>());
}
}
if (Serializer.IsEntityType(type))
{
Type baseType = type;
while (Serializer.IsEntityType(baseType.BaseType))
{
baseType = baseType.BaseType;
}
switch (format)
{
case DataFormat.Default: return(PropertyUtil <T> .CreateTypedProperty("CreatePropertyMessageString", type, baseType, baseType));
case DataFormat.Group: return(PropertyUtil <T> .CreateTypedProperty("CreatePropertyMessageGroup", type, baseType, baseType));
}
}
if (type.IsEnum)
{
format = DataFormat.TwosComplement;
return(PropertyUtil <T> .CreateTypedProperty("CreatePropertyEnum", type));
}
if (type.IsValueType && type.IsGenericType && type.GetGenericTypeDefinition() == typeof(KeyValuePair <,>))
{
return(PropertyUtil <T> .CreateTypedProperty("CreatePropertyPairString", type.GetGenericArguments()));
}
bool isEnumerableOnly;
Type listItemType = GetListType(type, out isEnumerableOnly);
if (type.IsArray)
{
// verify that we can handle it
if (type.GetArrayRank() != 1)
{
throw new NotSupportedException("Only 1-dimensional arrays can be used; consider an array/list of a class-type instead");
}
}
if (listItemType != null && listItemType != typeof(byte[]))
{
bool dummy;
if (GetListType(listItemType, out dummy) != null)
{
throw new NotSupportedException("Nested (jagged) arrays/lists are not supported (except for byte[]); consider an array/list of a class-type with an inner array/list instead");
}
}
if (type == typeof(byte[]))
{ // want to treat byte[] as a special case
listItemType = null;
}
if (type.IsArray && listItemType != null) // second check is for byte[]
{
return(PropertyUtil <T> .CreateTypedProperty(
(PropertyFactory.HasOption(options, MemberSerializationOptions.Packed)
? "CreatePropertyPackedArray" : "CreatePropertyArray"), listItemType));
}
if (listItemType != null)
{
if (isEnumerableOnly)
{
if (GetAddMethod(type, listItemType) != null)
{
return(PropertyUtil <T> .CreateTypedProperty(
(PropertyFactory.HasOption(options, MemberSerializationOptions.Packed)
? "CreatePropertyPackedEnumerable" : "CreatePropertyEnumerable"), type, listItemType));
}
}
else
{
return(PropertyUtil <T> .CreateTypedProperty(
(PropertyFactory.HasOption(options, MemberSerializationOptions.Packed)
? "CreatePropertyPackedList" : "CreatePropertyList"), type, listItemType));
}
}
Type nullType = Nullable.GetUnderlyingType(type);
if (nullType != null)
{
return(PropertyUtil <T> .CreateTypedProperty("CreatePropertyNullable", nullType));
}
if (format == DataFormat.Default && GetParseMethod(type) != null)
{
return(PropertyUtil <T> .CreateTypedProperty("CreatePropertyParseable", type));
}
throw Serializer.ThrowNoEncoder(format, type);
}
