| private CheckLastTagWas ( uint value ) : void | ||
| value | uint | |
| return | void | |
/// <summary>
/// Parses <paramref name="data"/> as an UnknownFieldSet and merge it
/// with the set being built. This is just a small wrapper around
/// MergeFrom(ICodedInputStream).
/// </summary>
public Builder MergeFrom(ByteString data)
{
CodedInputStream input = data.CreateCodedInput();
MergeFrom(input);
input.CheckLastTagWas(0);
return(this);
}
/// <summary>
/// Parses <paramref name="data"/> as an UnknownFieldSet and merge it
/// with the set being built. This is just a small wrapper around
/// MergeFrom(ICodedInputStream).
/// </summary>
public Builder MergeFrom(byte[] data)
{
CodedInputStream input = CodedInputStream.CreateInstance(data);
MergeFrom(input);
input.CheckLastTagWas(0);
return(this);
}
public TBuilder MergeFrom(ByteString data, ExtensionRegistry extensionRegistry)
{
CodedInputStream input = data.CreateCodedInput();
MergeFrom(input, extensionRegistry);
input.CheckLastTagWas(0);
return(ThisBuilder);
}
/// <summary>
/// Parses <paramref name="input"/> as an UnknownFieldSet and merge it
/// with the set being built. This is just a small wrapper around
/// MergeFrom(ICodedInputStream).
/// </summary>
public Builder MergeFrom(Stream input)
{
CodedInputStream codedInput = CodedInputStream.CreateInstance(input);
MergeFrom(codedInput);
codedInput.CheckLastTagWas(0);
return(this);
}
public TBuilder MergeFrom(Stream input, ExtensionRegistry extensionRegistry)
{
CodedInputStream codedInput = CodedInputStream.CreateInstance(input);
MergeFrom(codedInput, extensionRegistry);
codedInput.CheckLastTagWas(0);
return(ThisBuilder);
}
public TBuilder MergeFrom(byte[] data, ExtensionRegistry extensionRegistry)
{
CodedInputStream input = CodedInputStream.CreateInstance(data);
MergeFrom(input, extensionRegistry);
input.CheckLastTagWas(0);
return(ThisBuilder);
}
public TBuilder MergeFrom(Stream input)
{
CodedInputStream codedInputStream = CodedInputStream.CreateInstance(input);
this.MergeFrom(codedInputStream);
codedInputStream.CheckLastTagWas(0u);
return(this.ThisBuilder);
}
public TBuilder MergeFrom(byte[] data, ExtensionRegistry extensionRegistry)
{
CodedInputStream codedInputStream = CodedInputStream.CreateInstance(data);
this.MergeFrom(codedInputStream, extensionRegistry);
codedInputStream.CheckLastTagWas(0u);
return(this.ThisBuilder);
}
public TBuilder MergeFrom(ByteString data, ExtensionRegistry extensionRegistry)
{
CodedInputStream codedInputStream = data.CreateCodedInput();
this.MergeFrom(codedInputStream, extensionRegistry);
codedInputStream.CheckLastTagWas(0u);
return(this.ThisBuilder);
}
/// <summary>
/// Called by MergeFieldFrom to parse a MessageSet extension.
/// </summary>
private void MergeMessageSetExtensionFromCodedStream(CodedInputStream input,
ExtensionRegistry extensionRegistry, IBuilder builder)
{
MessageDescriptor type = builder.DescriptorForType;
// The wire format for MessageSet is:
// message MessageSet {
// repeated group Item = 1 {
// required int32 typeId = 2;
// required bytes message = 3;
// }
// }
// "typeId" is the extension's field number. The extension can only be
// a message type, where "message" contains the encoded bytes of that
// message.
//
// In practice, we will probably never see a MessageSet item in which
// the message appears before the type ID, or where either field does not
// appear exactly once. However, in theory such cases are valid, so we
// should be prepared to accept them.
int typeId = 0;
ByteString rawBytes = null; // If we encounter "message" before "typeId"
IBuilder subBuilder = null;
FieldDescriptor field = null;
while (true)
{
uint tag = input.ReadTag();
if (tag == 0)
{
break;
}
if (tag == WireFormat.MessageSetTag.TypeID)
{
typeId = input.ReadInt32();
// Zero is not a valid type ID.
if (typeId != 0)
{
ExtensionInfo extension = extensionRegistry[type, typeId];
if (extension != null)
{
field = extension.Descriptor;
subBuilder = extension.DefaultInstance.WeakCreateBuilderForType();
IMessage originalMessage = (IMessage)builder[field];
if (originalMessage != null)
{
subBuilder.WeakMergeFrom(originalMessage);
}
if (rawBytes != null)
{
// We already encountered the message. Parse it now.
// TODO(jonskeet): Check this is okay. It's subtly different from the Java, as it doesn't create an input stream from rawBytes.
// In fact, why don't we just call MergeFrom(rawBytes)? And what about the extension registry?
subBuilder.WeakMergeFrom(rawBytes.CreateCodedInput());
rawBytes = null;
}
}
else
{
// Unknown extension number. If we already saw data, put it
// in rawBytes.
if (rawBytes != null)
{
MergeField(typeId, UnknownField.CreateBuilder().AddLengthDelimited(rawBytes).Build());
rawBytes = null;
}
}
}
}
else if (tag == WireFormat.MessageSetTag.Message)
{
if (typeId == 0)
{
// We haven't seen a type ID yet, so we have to store the raw bytes for now.
rawBytes = input.ReadBytes();
}
else if (subBuilder == null)
{
// We don't know how to parse this. Ignore it.
MergeField(typeId, UnknownField.CreateBuilder().AddLengthDelimited(input.ReadBytes()).Build());
}
else
{
// We already know the type, so we can parse directly from the input
// with no copying. Hooray!
input.ReadMessage(subBuilder, extensionRegistry);
}
}
else
{
// Unknown tag. Skip it.
if (!input.SkipField(tag))
{
break; // end of group
}
}
}
input.CheckLastTagWas(WireFormat.MessageSetTag.ItemEnd);
if (subBuilder != null)
{
builder[field] = subBuilder.WeakBuild();
}
}
/// <summary>
/// Called by MergeFieldFrom to parse a MessageSet extension.
/// </summary>
private void MergeMessageSetExtensionFromCodedStream(CodedInputStream input,
ExtensionRegistry extensionRegistry, IBuilder builder)
{
MessageDescriptor type = builder.DescriptorForType;
// The wire format for MessageSet is:
// message MessageSet {
// repeated group Item = 1 {
// required int32 typeId = 2;
// required bytes message = 3;
// }
// }
// "typeId" is the extension's field number. The extension can only be
// a message type, where "message" contains the encoded bytes of that
// message.
//
// In practice, we will probably never see a MessageSet item in which
// the message appears before the type ID, or where either field does not
// appear exactly once. However, in theory such cases are valid, so we
// should be prepared to accept them.
int typeId = 0;
ByteString rawBytes = null; // If we encounter "message" before "typeId"
IBuilder subBuilder = null;
FieldDescriptor field = null;
while (true) {
uint tag = input.ReadTag();
if (tag == 0) {
break;
}
if (tag == WireFormat.MessageSetTag.TypeID) {
typeId = input.ReadInt32();
// Zero is not a valid type ID.
if (typeId != 0) {
ExtensionInfo extension = extensionRegistry[type, typeId];
if (extension != null) {
field = extension.Descriptor;
subBuilder = extension.DefaultInstance.WeakCreateBuilderForType();
IMessage originalMessage = (IMessage)builder[field];
if (originalMessage != null) {
subBuilder.WeakMergeFrom(originalMessage);
}
if (rawBytes != null) {
// We already encountered the message. Parse it now.
// TODO(jonskeet): Check this is okay. It's subtly different from the Java, as it doesn't create an input stream from rawBytes.
// In fact, why don't we just call MergeFrom(rawBytes)? And what about the extension registry?
subBuilder.WeakMergeFrom(rawBytes.CreateCodedInput());
rawBytes = null;
}
} else {
// Unknown extension number. If we already saw data, put it
// in rawBytes.
if (rawBytes != null) {
MergeField(typeId, UnknownField.CreateBuilder().AddLengthDelimited(rawBytes).Build());
rawBytes = null;
}
}
}
} else if (tag == WireFormat.MessageSetTag.Message) {
if (typeId == 0) {
// We haven't seen a type ID yet, so we have to store the raw bytes for now.
rawBytes = input.ReadBytes();
} else if (subBuilder == null) {
// We don't know how to parse this. Ignore it.
MergeField(typeId, UnknownField.CreateBuilder().AddLengthDelimited(input.ReadBytes()).Build());
} else {
// We already know the type, so we can parse directly from the input
// with no copying. Hooray!
input.ReadMessage(subBuilder, extensionRegistry);
}
} else {
// Unknown tag. Skip it.
if (!input.SkipField(tag)) {
break; // end of group
}
}
}
input.CheckLastTagWas(WireFormat.MessageSetTag.ItemEnd);
if (subBuilder != null) {
builder[field] = subBuilder.WeakBuild();
}
}
