/// <summary>
/// Write enum value.
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="val">Enum value.</param>
public void WriteEnum <T>(T val)
{
// ReSharper disable once CompareNonConstrainedGenericWithNull
if (val == null)
{
WriteNullField();
}
else
{
// Unwrap nullable.
var valType = val.GetType();
var type = Nullable.GetUnderlyingType(valType) ?? valType;
if (!type.IsEnum)
{
throw new BinaryObjectException("Type is not an enum: " + type);
}
var handler = BinarySystemHandlers.GetWriteHandler(type);
if (handler != null)
{
// All enums except long/ulong.
handler.Write(this, val);
}
else
{
throw new BinaryObjectException(string.Format("Enum '{0}' has unsupported underlying type '{1}'. " +
"Use WriteObject instead of WriteEnum.",
type, Enum.GetUnderlyingType(type)));
}
}
}
/// <summary>
/// Check whether the given object is binarizeble, i.e. it can be serialized with binary marshaller.
/// </summary>
/// <param name="obj">Object.</param>
/// <returns>True if binarizable.</returns>
internal bool IsBinarizable(object obj)
{
if (obj != null)
{
Type type = obj.GetType();
// We assume object as binarizable only in case it has descriptor.
// Collections, Enums and non-primitive arrays do not have descriptors
// and this is fine here because we cannot know whether their members are binarizable.
return(_marsh.GetDescriptor(type) != null || BinarySystemHandlers.GetWriteHandler(type) != null);
}
return(true);
}
/// <summary>
/// Deserialize object.
/// </summary>
/// <param name="res">Deserialized object.</param>
/// <param name="typeOverride">The type override.
/// There can be multiple versions of the same type when peer assembly loading is enabled.
/// Only first one is registered in Marshaller.
/// This parameter specifies exact type to be instantiated.</param>
/// <returns>
/// Deserialized object.
/// </returns>
public bool TryDeserialize <T>(out T res, Type typeOverride = null)
{
int pos = Stream.Position;
byte hdr = Stream.ReadByte();
var doDetach = _detach; // save detach flag into a var and reset so it does not go deeper
_detach = false;
switch (hdr)
{
case BinaryUtils.HdrNull:
res = default(T);
return(false);
case BinaryUtils.HdrHnd:
res = ReadHandleObject <T>(pos, typeOverride);
return(true);
case BinaryUtils.HdrFull:
res = ReadFullObject <T>(pos, typeOverride);
return(true);
case BinaryUtils.TypeBinary:
res = ReadBinaryObject <T>(doDetach);
return(true);
case BinaryUtils.TypeEnum:
res = ReadEnum0 <T>(this, _mode == BinaryMode.ForceBinary);
return(true);
case BinaryUtils.TypeBinaryEnum:
res = ReadEnum0 <T>(this, _mode != BinaryMode.Deserialize);
return(true);
}
if (BinarySystemHandlers.TryReadSystemType(hdr, this, out res))
{
return(true);
}
throw new BinaryObjectException("Invalid header on deserialization [pos=" + pos + ", hdr=" + hdr + ']');
}
/// <summary>
/// Deserialize object.
/// </summary>
/// <returns>Deserialized object.</returns>
public bool TryDeserialize <T>(out T res)
{
int pos = Stream.Position;
byte hdr = Stream.ReadByte();
var doDetach = _detach; // save detach flag into a var and reset so it does not go deeper
_detach = false;
switch (hdr)
{
case BinaryUtils.HdrNull:
res = default(T);
return(false);
case BinaryUtils.HdrHnd:
res = ReadHandleObject <T>(pos);
return(true);
case BinaryUtils.HdrFull:
res = ReadFullObject <T>(pos);
return(true);
case BinaryUtils.TypeBinary:
res = ReadBinaryObject <T>(doDetach);
return(true);
}
if (BinaryUtils.IsPredefinedType(hdr))
{
res = BinarySystemHandlers.ReadSystemType <T>(hdr, this);
return(true);
}
throw new BinaryObjectException("Invalid header on deserialization [pos=" + pos + ", hdr=" + hdr + ']');
}
/// <summary>
/// Write object.
/// </summary>
/// <param name="obj">Object.</param>
public void Write <T>(T obj)
{
// Handle special case for null.
// ReSharper disable once CompareNonConstrainedGenericWithNull
if (obj == null)
{
_stream.WriteByte(BinaryUtils.HdrNull);
return;
}
// We use GetType() of a real object instead of typeof(T) to take advantage of
// automatic Nullable'1 unwrapping.
Type type = obj.GetType();
// Handle common case when primitive is written.
if (type.IsPrimitive)
{
WritePrimitive(obj, type);
return;
}
// Handle special case for builder.
if (WriteBuilderSpecials(obj))
{
return;
}
// Are we dealing with a well-known type?
var handler = BinarySystemHandlers.GetWriteHandler(type);
if (handler != null)
{
if (handler.SupportsHandles && WriteHandle(_stream.Position, obj))
{
return;
}
handler.Write(this, obj);
return;
}
// Wrap objects as required.
if (WrapperFunc != null && type != WrapperFunc.Method.ReturnType)
{
if (_isInWrapper)
{
_isInWrapper = false;
}
else
{
_isInWrapper = true;
Write(WrapperFunc(obj));
return;
}
}
// Suppose that we faced normal object and perform descriptor lookup.
var desc = _marsh.GetDescriptor(type);
// Writing normal object.
var pos = _stream.Position;
// Dealing with handles.
if (desc.Serializer.SupportsHandles && WriteHandle(pos, obj))
{
return;
}
// Skip header length as not everything is known now
_stream.Seek(BinaryObjectHeader.Size, SeekOrigin.Current);
// Write type name for unregistered types
if (!desc.IsRegistered)
{
WriteString(Marshaller.GetTypeName(type));
}
var headerSize = _stream.Position - pos;
// Preserve old frame.
var oldFrame = _frame;
// Push new frame.
_frame.RawPos = 0;
_frame.Pos = pos;
_frame.Struct = new BinaryStructureTracker(desc, desc.WriterTypeStructure);
_frame.HasCustomTypeData = false;
var schemaIdx = _schema.PushSchema();
try
{
// Write object fields.
desc.Serializer.WriteBinary(obj, this);
var dataEnd = _stream.Position;
// Write schema
var schemaOffset = dataEnd - pos;
int schemaId;
var flags = desc.UserType
? BinaryObjectHeader.Flag.UserType
: BinaryObjectHeader.Flag.None;
if (_frame.HasCustomTypeData)
{
flags |= BinaryObjectHeader.Flag.CustomDotNetType;
}
if (Marshaller.CompactFooter && desc.UserType)
{
flags |= BinaryObjectHeader.Flag.CompactFooter;
}
var hasSchema = _schema.WriteSchema(_stream, schemaIdx, out schemaId, ref flags);
if (hasSchema)
{
flags |= BinaryObjectHeader.Flag.HasSchema;
// Calculate and write header.
if (_frame.RawPos > 0)
{
_stream.WriteInt(_frame.RawPos - pos); // raw offset is in the last 4 bytes
}
// Update schema in type descriptor
if (desc.Schema.Get(schemaId) == null)
{
desc.Schema.Add(schemaId, _schema.GetSchema(schemaIdx));
}
}
else
{
schemaOffset = headerSize;
}
if (_frame.RawPos > 0)
{
flags |= BinaryObjectHeader.Flag.HasRaw;
}
var len = _stream.Position - pos;
var hashCode = BinaryArrayEqualityComparer.GetHashCode(Stream, pos + BinaryObjectHeader.Size,
dataEnd - pos - BinaryObjectHeader.Size);
var header = new BinaryObjectHeader(desc.IsRegistered ? desc.TypeId : BinaryTypeId.Unregistered,
hashCode, len, schemaId, schemaOffset, flags);
BinaryObjectHeader.Write(header, _stream, pos);
Stream.Seek(pos + len, SeekOrigin.Begin); // Seek to the end
}
finally
{
_schema.PopSchema(schemaIdx);
}
// Apply structure updates if any.
_frame.Struct.UpdateWriterStructure(this);
// Restore old frame.
_frame = oldFrame;
}
/// <summary>
/// Write object.
/// </summary>
/// <param name="obj">Object.</param>
public void Write <T>(T obj)
{
// Handle special case for null.
if (obj == null)
{
_stream.WriteByte(BinaryUtils.HdrNull);
return;
}
// We use GetType() of a real object instead of typeof(T) to take advantage of
// automatic Nullable'1 unwrapping.
Type type = obj.GetType();
// Handle common case when primitive is written.
if (type.IsPrimitive)
{
WritePrimitive(obj, type);
return;
}
// Handle special case for builder.
if (WriteBuilderSpecials(obj))
{
return;
}
// Suppose that we faced normal object and perform descriptor lookup.
IBinaryTypeDescriptor desc = type.IsEnum ? null : _marsh.GetDescriptor(type);
if (desc != null)
{
// Writing normal object.
var pos = _stream.Position;
// Dealing with handles.
if (!(desc.Serializer is IBinarySystemTypeSerializer) && WriteHandle(pos, obj))
{
return;
}
// Skip header length as not everything is known now
_stream.Seek(BinaryObjectHeader.Size, SeekOrigin.Current);
// Preserve old frame.
int oldTypeId = _curTypeId;
IBinaryNameMapper oldConverter = _curConverter;
IBinaryIdMapper oldMapper = _curMapper;
int oldRawPos = _curRawPos;
var oldPos = _curPos;
var oldStruct = _curStruct;
// Push new frame.
_curTypeId = desc.TypeId;
_curConverter = desc.NameMapper;
_curMapper = desc.IdMapper;
_curRawPos = 0;
_curPos = pos;
_curStruct = new BinaryStructureTracker(desc, desc.WriterTypeStructure);
var schemaIdx = _schema.PushSchema();
try
{
// Write object fields.
desc.Serializer.WriteBinary(obj, this);
// Write schema
var schemaOffset = _stream.Position - pos;
int schemaId;
var flags = desc.UserType
? BinaryObjectHeader.Flag.UserType
: BinaryObjectHeader.Flag.None;
var hasSchema = _schema.WriteSchema(_stream, schemaIdx, out schemaId, ref flags);
if (hasSchema)
{
flags |= BinaryObjectHeader.Flag.HasSchema;
// Calculate and write header.
if (_curRawPos > 0)
{
_stream.WriteInt(_curRawPos - pos); // raw offset is in the last 4 bytes
}
}
else
{
schemaOffset = BinaryObjectHeader.Size;
}
if (_curRawPos > 0)
{
flags |= BinaryObjectHeader.Flag.HasRaw;
}
var len = _stream.Position - pos;
var header = new BinaryObjectHeader(desc.TypeId, obj.GetHashCode(), len,
schemaId, schemaOffset, flags);
BinaryObjectHeader.Write(header, _stream, pos);
Stream.Seek(pos + len, SeekOrigin.Begin); // Seek to the end
}
finally
{
_schema.PopSchema(schemaIdx);
}
// Apply structure updates if any.
_curStruct.UpdateWriterStructure(this);
// Restore old frame.
_curTypeId = oldTypeId;
_curConverter = oldConverter;
_curMapper = oldMapper;
_curRawPos = oldRawPos;
_curPos = oldPos;
_curStruct = oldStruct;
}
else
{
// Are we dealing with a well-known type?
var handler = BinarySystemHandlers.GetWriteHandler(type);
if (handler == null) // We did our best, object cannot be marshalled.
{
throw new BinaryObjectException("Unsupported object type [type=" + type + ", object=" + obj + ']');
}
handler(this, obj);
}
}
/** <inheritDoc /> */
public IBinaryObjectBuilder SetField <T>(string fieldName, T val)
{
return(SetField0(fieldName,
new BinaryBuilderField(typeof(T), val, BinarySystemHandlers.GetTypeId(typeof(T)))));
}