/// <summary>
/// Parses a decimal from a protobuf stream
/// </summary>
public static decimal ReadDecimal(ProtoReader reader)
{
ulong low = 0;
uint high = 0;
uint signScale = 0;
int fieldNumber;
SubItemToken token = ProtoReader.StartSubItem(reader);
while ((fieldNumber = reader.ReadFieldHeader()) > 0)
{
switch (fieldNumber)
{
case FieldDecimalLow: low = reader.ReadUInt64(); break;
case FieldDecimalHigh: high = reader.ReadUInt32(); break;
case FieldDecimalSignScale: signScale = reader.ReadUInt32(); break;
default: reader.SkipField(); break;
}
}
ProtoReader.EndSubItem(token, reader);
if (low == 0 && high == 0)
{
return(decimal.Zero);
}
int lo = (int)(low & 0xFFFFFFFFL),
mid = (int)((low >> 32) & 0xFFFFFFFFL),
hi = (int)high;
bool isNeg = (signScale & 0x0001) == 0x0001;
byte scale = (byte)((signScale & 0x01FE) >> 1);
return(new decimal(lo, mid, hi, isNeg, scale));
}
private static void WriteTimeSpanImpl(TimeSpan timeSpan, ProtoWriter dest, DateTimeKind kind)
{
if (dest == null)
{
throw new ArgumentNullException(nameof(dest));
}
switch (dest.WireType)
{
case WireType.String:
case WireType.StartGroup:
TimeSpanScale scale;
long value = timeSpan.Ticks;
if (timeSpan == TimeSpan.MaxValue)
{
value = 1;
scale = TimeSpanScale.MinMax;
}
else if (timeSpan == TimeSpan.MinValue)
{
value = -1;
scale = TimeSpanScale.MinMax;
}
else if (value % TimeSpan.TicksPerDay == 0)
{
scale = TimeSpanScale.Days;
value /= TimeSpan.TicksPerDay;
}
else if (value % TimeSpan.TicksPerHour == 0)
{
scale = TimeSpanScale.Hours;
value /= TimeSpan.TicksPerHour;
}
else if (value % TimeSpan.TicksPerMinute == 0)
{
scale = TimeSpanScale.Minutes;
value /= TimeSpan.TicksPerMinute;
}
else if (value % TimeSpan.TicksPerSecond == 0)
{
scale = TimeSpanScale.Seconds;
value /= TimeSpan.TicksPerSecond;
}
else if (value % TimeSpan.TicksPerMillisecond == 0)
{
scale = TimeSpanScale.Milliseconds;
value /= TimeSpan.TicksPerMillisecond;
}
else
{
scale = TimeSpanScale.Ticks;
}
SubItemToken token = ProtoWriter.StartSubItemWithoutWritingHeader(null, dest);
if (value != 0)
{
ProtoWriter.WriteFieldHeader(FieldTimeSpanValue, WireType.SignedVariant, dest);
ProtoWriter.WriteInt64(value, dest);
}
if (scale != TimeSpanScale.Days)
{
ProtoWriter.WriteFieldHeader(FieldTimeSpanScale, WireType.Variant, dest);
ProtoWriter.WriteInt32((int)scale, dest);
}
if (kind != DateTimeKind.Unspecified)
{
ProtoWriter.WriteFieldHeader(FieldTimeSpanKind, WireType.Variant, dest);
ProtoWriter.WriteInt32((int)kind, dest);
}
ProtoWriter.EndSubItem(token, dest);
break;
case WireType.Fixed64:
ProtoWriter.WriteInt64(timeSpan.Ticks, dest);
break;
default:
throw new ProtoException("Unexpected wire-type: " + dest.WireType.ToString());
}
}
private static long ReadTimeSpanTicks(ProtoReader source, out DateTimeKind kind)
{
kind = DateTimeKind.Unspecified;
switch (source.WireType)
{
case WireType.String:
case WireType.StartGroup:
SubItemToken token = ProtoReader.StartSubItem(source);
int fieldNumber;
TimeSpanScale scale = TimeSpanScale.Days;
long value = 0;
while ((fieldNumber = source.ReadFieldHeader()) > 0)
{
switch (fieldNumber)
{
case FieldTimeSpanScale:
scale = (TimeSpanScale)source.ReadInt32();
break;
case FieldTimeSpanValue:
source.Assert(WireType.SignedVariant);
value = source.ReadInt64();
break;
case FieldTimeSpanKind:
kind = (DateTimeKind)source.ReadInt32();
switch (kind)
{
case DateTimeKind.Unspecified:
case DateTimeKind.Utc:
case DateTimeKind.Local:
break; // fine
default:
throw new ProtoException("Invalid date/time kind: " + kind.ToString());
}
break;
default:
source.SkipField();
break;
}
}
ProtoReader.EndSubItem(token, source);
switch (scale)
{
case TimeSpanScale.Days:
return(value * TimeSpan.TicksPerDay);
case TimeSpanScale.Hours:
return(value * TimeSpan.TicksPerHour);
case TimeSpanScale.Minutes:
return(value * TimeSpan.TicksPerMinute);
case TimeSpanScale.Seconds:
return(value * TimeSpan.TicksPerSecond);
case TimeSpanScale.Milliseconds:
return(value * TimeSpan.TicksPerMillisecond);
case TimeSpanScale.Ticks:
return(value);
case TimeSpanScale.MinMax:
switch (value)
{
case 1: return(long.MaxValue);
case -1: return(long.MinValue);
default: throw new ProtoException("Unknown min/max value: " + value.ToString());
}
default:
throw new ProtoException("Unknown timescale: " + scale.ToString());
}
case WireType.Fixed64:
return(source.ReadInt64());
default:
throw new ProtoException("Unexpected wire-type: " + source.WireType.ToString());
}
}
/// <summary>
/// Writes an *implementation specific* bundled .NET object, including (as options) type-metadata, identity/re-use, etc.
/// </summary>
public static SubItemToken WriteNetObject_Start(object value, ProtoWriter dest, BclHelpers.NetObjectOptions options, out int dynamicTypeKey, out bool writeObject)
{
#if FEAT_IKVM
throw new NotSupportedException();
#else
if (dest == null)
{
throw new ArgumentNullException(nameof(dest));
}
dynamicTypeKey = -1;
// length not prefixed to not move data in buffer twice just because of NetObject (will be another nested inside)
SubItemToken token = ProtoWriter.StartSubItem(null, false, dest);
if (value == null)
{
// null handling
writeObject = false;
return(token);
}
// even root object can be wrapped with collection
// so it's not true root
writeObject = true;
if ((options & BclHelpers.NetObjectOptions.AsReference) != 0)
{
bool existing;
int objectKey = dest.NetCache.AddObjectKey(value, out existing);
ProtoWriter.WriteFieldHeader(existing ? FieldExistingObjectKey : FieldNewObjectKey, WireType.Variant, dest);
ProtoWriter.WriteInt32(objectKey, dest);
if (existing)
{
writeObject = false;
}
}
if (writeObject)
{
if ((options & BclHelpers.NetObjectOptions.DynamicType) != 0)
{
bool existing;
Type type = value.GetType();
dynamicTypeKey = dest.GetTypeKey(ref type);
int typeRefKey = dest.NetCache.AddObjectKey(type, out existing);
ProtoWriter.WriteFieldHeader(existing ? FieldExistingTypeKey : FieldNewTypeKey, WireType.Variant, dest);
ProtoWriter.WriteInt32(typeRefKey, dest);
if (!existing)
{
ProtoWriter.WriteFieldHeader(FieldTypeName, WireType.String, dest);
ProtoWriter.WriteString(dest.SerializeType(type), dest);
}
}
// do nothing, write will be outside
ProtoWriter.WriteFieldHeaderBegin((options & BclHelpers.NetObjectOptions.WriteAsLateReference) != 0 ? FieldLateReferenceObject : FieldObject, dest);
}
return(token);
#endif
}
// this method is split because we need to insert our implementation inside and it's hard to deal with delegates in emit
public static void ReadNetObject_EndWithNoteNewObject(object value, ProtoReader source, object oldValue, Type type, int newObjectKey, int newTypeRefKey, BclHelpers.NetObjectOptions options, SubItemToken token)
{
ReadNetObject_NoteNewObject(value, source, oldValue, type, newObjectKey, newTypeRefKey, options);
ProtoReader.EndSubItem(token, source);
}
/// <summary>
/// Reads an *implementation specific* bundled .NET object, including (as options) type-metadata, identity/re-use, etc.
/// </summary>
public static SubItemToken ReadNetObject_Start(ref object value, ProtoReader source, ref Type type, BclHelpers.NetObjectOptions options, out bool isDynamic, out bool isLateReference, ref int typeKey, out int newObjectKey, out int newTypeRefKey, out bool shouldEnd)
{
#if FEAT_IKVM
throw new NotSupportedException();
#else
shouldEnd = false;
newObjectKey = -1;
newTypeRefKey = -1;
isDynamic = false;
isLateReference = false;
SubItemToken token = ProtoReader.StartSubItem(source);
int fieldNumber;
if ((fieldNumber = source.ReadFieldHeader()) == 0)
{
// null handling
value = null;
return(token);
}
do
{
int tmp;
switch (fieldNumber)
{
case FieldExistingObjectKey:
tmp = source.ReadInt32();
value = source.NetCache.GetKeyedObject(tmp);
break;
case FieldNewObjectKey:
newObjectKey = source.ReadInt32();
break;
case FieldExistingTypeKey:
tmp = source.ReadInt32();
type = (Type)source.NetCache.GetKeyedObject(tmp);
typeKey = source.GetTypeKey(ref type);
break;
case FieldNewTypeKey:
newTypeRefKey = source.ReadInt32();
break;
case FieldTypeName:
string typeName = source.ReadString();
type = source.DeserializeType(typeName);
if (type == null)
{
throw new ProtoException("Unable to resolve type: " + typeName + " (you can use the TypeModel.DynamicTypeFormatting event to provide a custom mapping)");
}
typeKey = source.GetTypeKey(ref type);
isDynamic = true;
break;
case FieldLateReferenceObject:
case FieldObject:
if (fieldNumber == FieldLateReferenceObject)
{
isLateReference = true;
}
shouldEnd = true;
bool wasNull = value == null;
bool lateSet = wasNull && ((options & BclHelpers.NetObjectOptions.LateSet) != 0);
if (newObjectKey >= 0 && !lateSet)
{
if (value == null)
{
source.TrapNextObject(newObjectKey);
}
else
{
source.NetCache.SetKeyedObject(newObjectKey, value);
}
if (newTypeRefKey >= 0)
{
source.NetCache.SetKeyedObject(newTypeRefKey, type);
}
}
return(token);
default:
source.SkipField();
break;
}
} while ((fieldNumber = source.ReadFieldHeader()) > 0);
return(token);
#endif
}
