/// <summary>
/// Like <see cref="MergeFrom(ICodedInputStream, ExtensionRegistry, IBuilder)" />
/// but parses a single field.
/// </summary>
/// <param name="input">The input to read the field from</param>
/// <param name="extensionRegistry">Registry to use when an extension field is encountered</param>
/// <param name="builder">Builder to merge field into, if it's a known field</param>
/// <param name="tag">The tag, which should already have been read from the input</param>
/// <returns>true unless the tag is an end-group tag</returns>
internal bool MergeFieldFrom(ICodedInputStream input,
ExtensionRegistry extensionRegistry, IBuilder builder, uint tag,
string fieldName)
{
if (tag == 0 && fieldName != null)
{
FieldDescriptor fieldByName = builder.DescriptorForType.FindFieldByName(fieldName);
if (fieldByName != null)
{
tag = WireFormat.MakeTag(fieldByName);
}
else
{
ExtensionInfo extension = extensionRegistry.FindByName(builder.DescriptorForType, fieldName);
if (extension != null)
{
tag = WireFormat.MakeTag(extension.Descriptor);
}
}
}
MessageDescriptor type = builder.DescriptorForType;
if (type.Options.MessageSetWireFormat && tag == WireFormat.MessageSetTag.ItemStart)
{
MergeMessageSetExtensionFromCodedStream(input, extensionRegistry, builder);
return(true);
}
WireFormat.WireType wireType = WireFormat.GetTagWireType(tag);
int fieldNumber = WireFormat.GetTagFieldNumber(tag);
FieldDescriptor field;
IMessageLite defaultFieldInstance = null;
if (type.IsExtensionNumber(fieldNumber))
{
ExtensionInfo extension = extensionRegistry[type, fieldNumber];
if (extension == null)
{
field = null;
}
else
{
field = extension.Descriptor;
defaultFieldInstance = extension.DefaultInstance;
}
}
else
{
field = type.FindFieldByNumber(fieldNumber);
}
// Unknown field or wrong wire type. Skip.
if (field == null)
{
return(MergeFieldFrom(tag, input));
}
if (wireType != WireFormat.GetWireType(field))
{
WireFormat.WireType expectedType = WireFormat.GetWireType(field.FieldType);
if (wireType == expectedType)
{
//Allowed as of 2.3, this is unpacked data for a packed array
}
else if (field.IsRepeated && wireType == WireFormat.WireType.LengthDelimited &&
(expectedType == WireFormat.WireType.Varint || expectedType == WireFormat.WireType.Fixed32 ||
expectedType == WireFormat.WireType.Fixed64))
{
//Allowed as of 2.3, this is packed data for an unpacked array
}
else
{
return(MergeFieldFrom(tag, input));
}
}
switch (field.FieldType)
{
case FieldType.Group:
case FieldType.Message:
{
IBuilderLite subBuilder = (defaultFieldInstance != null)
? defaultFieldInstance.WeakCreateBuilderForType()
: builder.CreateBuilderForField(field);
if (!field.IsRepeated)
{
subBuilder.WeakMergeFrom((IMessageLite)builder[field]);
if (field.FieldType == FieldType.Group)
{
input.ReadGroup(field.FieldNumber, subBuilder, extensionRegistry);
}
else
{
input.ReadMessage(subBuilder, extensionRegistry);
}
builder[field] = subBuilder.WeakBuild();
}
else
{
List <IMessageLite> list = new List <IMessageLite>();
if (field.FieldType == FieldType.Group)
{
input.ReadGroupArray(tag, fieldName, list, subBuilder.WeakDefaultInstanceForType,
extensionRegistry);
}
else
{
input.ReadMessageArray(tag, fieldName, list, subBuilder.WeakDefaultInstanceForType,
extensionRegistry);
}
foreach (IMessageLite m in list)
{
builder.WeakAddRepeatedField(field, m);
}
return(true);
}
break;
}
case FieldType.Enum:
{
if (!field.IsRepeated)
{
object unknown;
IEnumLite value = null;
if (input.ReadEnum(ref value, out unknown, field.EnumType))
{
builder[field] = value;
}
else if (unknown is int)
{
MergeVarintField(fieldNumber, (ulong)(int)unknown);
}
}
else
{
ICollection <object> unknown;
List <IEnumLite> list = new List <IEnumLite>();
input.ReadEnumArray(tag, fieldName, list, out unknown, field.EnumType);
foreach (IEnumLite en in list)
{
builder.WeakAddRepeatedField(field, en);
}
if (unknown != null)
{
foreach (object oval in unknown)
{
if (oval is int)
{
MergeVarintField(fieldNumber, (ulong)(int)oval);
}
}
}
}
break;
}
default:
{
if (!field.IsRepeated)
{
object value = null;
if (input.ReadPrimitiveField(field.FieldType, ref value))
{
builder[field] = value;
}
}
else
{
List <object> list = new List <object>();
input.ReadPrimitiveArray(field.FieldType, tag, fieldName, list);
foreach (object oval in list)
{
builder.WeakAddRepeatedField(field, oval);
}
}
break;
}
}
return(true);
}
protected override bool ParseUnknownField(ICodedInputStream input, ExtensionRegistry extensionRegistry, uint tag, string fieldName)
{
TMessage messageBeingBuilt = this.MessageBeingBuilt;
FieldSet extensions = messageBeingBuilt.Extensions;
WireFormat.WireType tagWireType = WireFormat.GetTagWireType(tag);
int tagFieldNumber = WireFormat.GetTagFieldNumber(tag);
IGeneratedExtensionLite generatedExtensionLite = extensionRegistry[this.DefaultInstanceForType, tagFieldNumber];
if (generatedExtensionLite == null)
{
return(input.SkipField());
}
IFieldDescriptorLite descriptor = generatedExtensionLite.Descriptor;
if (descriptor == null)
{
return(input.SkipField());
}
WireFormat.WireType wireType = descriptor.IsPacked ? WireFormat.WireType.LengthDelimited : WireFormat.GetWireType(descriptor.FieldType);
if (tagWireType != wireType)
{
wireType = WireFormat.GetWireType(descriptor.FieldType);
if (tagWireType != wireType && (!descriptor.IsRepeated || tagWireType != WireFormat.WireType.LengthDelimited || (wireType != WireFormat.WireType.Varint && wireType != WireFormat.WireType.Fixed32 && wireType != WireFormat.WireType.Fixed64)))
{
return(input.SkipField());
}
}
if (!descriptor.IsRepeated && tagWireType != WireFormat.GetWireType(descriptor.FieldType))
{
return(input.SkipField());
}
FieldType fieldType = descriptor.FieldType;
switch (fieldType)
{
case FieldType.Group:
case FieldType.Message:
{
if (descriptor.IsRepeated)
{
List <IMessageLite> list = new List <IMessageLite>();
if (descriptor.FieldType == FieldType.Group)
{
input.ReadGroupArray <IMessageLite>(tag, fieldName, list, generatedExtensionLite.MessageDefaultInstance, extensionRegistry);
}
else
{
input.ReadMessageArray <IMessageLite>(tag, fieldName, list, generatedExtensionLite.MessageDefaultInstance, extensionRegistry);
}
using (List <IMessageLite> .Enumerator enumerator = list.GetEnumerator())
{
while (enumerator.MoveNext())
{
IMessageLite current = enumerator.Current;
extensions.AddRepeatedField(descriptor, current);
}
}
return(true);
}
IMessageLite messageLite = extensions[generatedExtensionLite.Descriptor] as IMessageLite;
IBuilderLite builderLite = (messageLite ?? generatedExtensionLite.MessageDefaultInstance).WeakToBuilder();
if (descriptor.FieldType == FieldType.Group)
{
input.ReadGroup(descriptor.FieldNumber, builderLite, extensionRegistry);
}
else
{
input.ReadMessage(builderLite, extensionRegistry);
}
extensions[descriptor] = builderLite.WeakBuild();
break;
}
default:
if (fieldType == FieldType.Enum)
{
if (!descriptor.IsRepeated)
{
IEnumLite value = null;
object obj;
if (input.ReadEnum(ref value, out obj, descriptor.EnumType))
{
extensions[descriptor] = value;
break;
}
break;
}
else
{
List <IEnumLite> list2 = new List <IEnumLite>();
ICollection <object> collection;
input.ReadEnumArray(tag, fieldName, list2, out collection, descriptor.EnumType);
using (List <IEnumLite> .Enumerator enumerator2 = list2.GetEnumerator())
{
while (enumerator2.MoveNext())
{
IEnumLite current2 = enumerator2.Current;
extensions.AddRepeatedField(descriptor, current2);
}
break;
}
}
}
if (!descriptor.IsRepeated)
{
object value2 = null;
if (input.ReadPrimitiveField(descriptor.FieldType, ref value2))
{
extensions[descriptor] = value2;
}
}
else
{
List <object> list3 = new List <object>();
input.ReadPrimitiveArray(descriptor.FieldType, tag, fieldName, list3);
using (List <object> .Enumerator enumerator3 = list3.GetEnumerator())
{
while (enumerator3.MoveNext())
{
object current3 = enumerator3.Current;
extensions.AddRepeatedField(descriptor, current3);
}
}
}
break;
}
return(true);
}
protected override bool ParseUnknownField(ICodedInputStream input,
ExtensionRegistry extensionRegistry, uint tag, string fieldName)
{
FieldSet extensions = MessageBeingBuilt.Extensions;
WireFormat.WireType wireType = WireFormat.GetTagWireType(tag);
int fieldNumber = WireFormat.GetTagFieldNumber(tag);
IGeneratedExtensionLite extension = extensionRegistry[DefaultInstanceForType, fieldNumber];
if (extension == null) //unknown field
{
return(input.SkipField());
}
IFieldDescriptorLite field = extension.Descriptor;
// Unknown field or wrong wire type. Skip.
if (field == null)
{
return(input.SkipField());
}
WireFormat.WireType expectedType = field.IsPacked
? WireFormat.WireType.LengthDelimited
: WireFormat.GetWireType(field.FieldType);
if (wireType != expectedType)
{
expectedType = WireFormat.GetWireType(field.FieldType);
if (wireType == expectedType)
{
//Allowed as of 2.3, this is unpacked data for a packed array
}
else if (field.IsRepeated && wireType == WireFormat.WireType.LengthDelimited &&
(expectedType == WireFormat.WireType.Varint || expectedType == WireFormat.WireType.Fixed32 ||
expectedType == WireFormat.WireType.Fixed64))
{
//Allowed as of 2.3, this is packed data for an unpacked array
}
else
{
return(input.SkipField());
}
}
if (!field.IsRepeated && wireType != WireFormat.GetWireType(field.FieldType)) //invalid wire type
{
return(input.SkipField());
}
switch (field.FieldType)
{
case FieldType.Group:
case FieldType.Message:
{
if (!field.IsRepeated)
{
IMessageLite message = extensions[extension.Descriptor] as IMessageLite;
IBuilderLite subBuilder = (message ?? extension.MessageDefaultInstance).WeakToBuilder();
if (field.FieldType == FieldType.Group)
{
input.ReadGroup(field.FieldNumber, subBuilder, extensionRegistry);
}
else
{
input.ReadMessage(subBuilder, extensionRegistry);
}
extensions[field] = subBuilder.WeakBuild();
}
else
{
List <IMessageLite> list = new List <IMessageLite>();
if (field.FieldType == FieldType.Group)
{
input.ReadGroupArray(tag, fieldName, list, extension.MessageDefaultInstance,
extensionRegistry);
}
else
{
input.ReadMessageArray(tag, fieldName, list, extension.MessageDefaultInstance,
extensionRegistry);
}
foreach (IMessageLite m in list)
{
extensions.AddRepeatedField(field, m);
}
return(true);
}
break;
}
case FieldType.Enum:
{
if (!field.IsRepeated)
{
object unknown;
IEnumLite value = null;
if (input.ReadEnum(ref value, out unknown, field.EnumType))
{
extensions[field] = value;
}
}
else
{
ICollection <object> unknown;
List <IEnumLite> list = new List <IEnumLite>();
input.ReadEnumArray(tag, fieldName, list, out unknown, field.EnumType);
foreach (IEnumLite en in list)
{
extensions.AddRepeatedField(field, en);
}
}
break;
}
default:
{
if (!field.IsRepeated)
{
object value = null;
if (input.ReadPrimitiveField(field.FieldType, ref value))
{
extensions[field] = value;
}
}
else
{
List <object> list = new List <object>();
input.ReadPrimitiveArray(field.FieldType, tag, fieldName, list);
foreach (object oval in list)
{
extensions.AddRepeatedField(field, oval);
}
}
break;
}
}
return(true);
}
/// <summary>
/// Like <see cref="MergeFrom(ICodedInputStream, ExtensionRegistry, IBuilder)" />
/// but parses a single field.
/// </summary>
/// <param name="input">The input to read the field from</param>
/// <param name="extensionRegistry">Registry to use when an extension field is encountered</param>
/// <param name="builder">Builder to merge field into, if it's a known field</param>
/// <param name="tag">The tag, which should already have been read from the input</param>
/// <returns>true unless the tag is an end-group tag</returns>
internal bool MergeFieldFrom(ICodedInputStream input,
ExtensionRegistry extensionRegistry, IBuilder builder, uint tag,
string fieldName)
{
if (tag == 0 && fieldName != null)
{
FieldDescriptor fieldByName = builder.DescriptorForType.FindFieldByName(fieldName);
if (fieldByName != null)
{
tag = WireFormat.MakeTag(fieldByName);
}
else
{
ExtensionInfo extension = extensionRegistry.FindByName(builder.DescriptorForType, fieldName);
if (extension != null)
{
tag = WireFormat.MakeTag(extension.Descriptor);
}
}
}
MessageDescriptor type = builder.DescriptorForType;
if (type.Options.MessageSetWireFormat && tag == WireFormat.MessageSetTag.ItemStart)
{
MergeMessageSetExtensionFromCodedStream(input, extensionRegistry, builder);
return true;
}
WireFormat.WireType wireType = WireFormat.GetTagWireType(tag);
int fieldNumber = WireFormat.GetTagFieldNumber(tag);
FieldDescriptor field;
IMessageLite defaultFieldInstance = null;
if (type.IsExtensionNumber(fieldNumber))
{
ExtensionInfo extension = extensionRegistry[type, fieldNumber];
if (extension == null)
{
field = null;
}
else
{
field = extension.Descriptor;
defaultFieldInstance = extension.DefaultInstance;
}
}
else
{
field = type.FindFieldByNumber(fieldNumber);
}
// Unknown field or wrong wire type. Skip.
if (field == null)
{
return MergeFieldFrom(tag, input);
}
if (wireType != WireFormat.GetWireType(field))
{
WireFormat.WireType expectedType = WireFormat.GetWireType(field.FieldType);
if (wireType == expectedType)
{
//Allowed as of 2.3, this is unpacked data for a packed array
}
else if (field.IsRepeated && wireType == WireFormat.WireType.LengthDelimited &&
(expectedType == WireFormat.WireType.Varint || expectedType == WireFormat.WireType.Fixed32 ||
expectedType == WireFormat.WireType.Fixed64))
{
//Allowed as of 2.3, this is packed data for an unpacked array
}
else
{
return MergeFieldFrom(tag, input);
}
}
switch (field.FieldType)
{
case FieldType.Group:
case FieldType.Message:
{
IBuilderLite subBuilder = (defaultFieldInstance != null)
? defaultFieldInstance.WeakCreateBuilderForType()
: builder.CreateBuilderForField(field);
if (!field.IsRepeated)
{
subBuilder.WeakMergeFrom((IMessageLite) builder[field]);
if (field.FieldType == FieldType.Group)
{
input.ReadGroup(field.FieldNumber, subBuilder, extensionRegistry);
}
else
{
input.ReadMessage(subBuilder, extensionRegistry);
}
builder[field] = subBuilder.WeakBuild();
}
else
{
List<IMessageLite> list = new List<IMessageLite>();
if (field.FieldType == FieldType.Group)
{
input.ReadGroupArray(tag, fieldName, list, subBuilder.WeakDefaultInstanceForType,
extensionRegistry);
}
else
{
input.ReadMessageArray(tag, fieldName, list, subBuilder.WeakDefaultInstanceForType,
extensionRegistry);
}
foreach (IMessageLite m in list)
{
builder.WeakAddRepeatedField(field, m);
}
return true;
}
break;
}
case FieldType.Enum:
{
if (!field.IsRepeated)
{
object unknown;
IEnumLite value = null;
if (input.ReadEnum(ref value, out unknown, field.EnumType))
{
builder[field] = value;
}
else if (unknown is int)
{
MergeVarintField(fieldNumber, (ulong) (int) unknown);
}
}
else
{
ICollection<object> unknown;
List<IEnumLite> list = new List<IEnumLite>();
input.ReadEnumArray(tag, fieldName, list, out unknown, field.EnumType);
foreach (IEnumLite en in list)
{
builder.WeakAddRepeatedField(field, en);
}
if (unknown != null)
{
foreach (object oval in unknown)
{
if (oval is int)
{
MergeVarintField(fieldNumber, (ulong) (int) oval);
}
}
}
}
break;
}
default:
{
if (!field.IsRepeated)
{
object value = null;
if (input.ReadPrimitiveField(field.FieldType, ref value))
{
builder[field] = value;
}
}
else
{
List<object> list = new List<object>();
input.ReadPrimitiveArray(field.FieldType, tag, fieldName, list);
foreach (object oval in list)
{
builder.WeakAddRepeatedField(field, oval);
}
}
break;
}
}
return true;
}
