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Diffstat (limited to 'csharp/src/ProtocolBuffers/GeneratedBuilder.cs')
| -rw-r--r-- | csharp/src/ProtocolBuffers/GeneratedBuilder.cs | 215 |
1 files changed, 215 insertions, 0 deletions
diff --git a/csharp/src/ProtocolBuffers/GeneratedBuilder.cs b/csharp/src/ProtocolBuffers/GeneratedBuilder.cs new file mode 100644 index 00000000..fd6fe4d7 --- /dev/null +++ b/csharp/src/ProtocolBuffers/GeneratedBuilder.cs @@ -0,0 +1,215 @@ +#region Copyright notice and license
+
+// Protocol Buffers - Google's data interchange format
+// Copyright 2008 Google Inc. All rights reserved.
+// http://github.com/jskeet/dotnet-protobufs/
+// Original C++/Java/Python code:
+// http://code.google.com/p/protobuf/
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+// * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+// * Redistributions in binary form must reproduce the above
+// copyright notice, this list of conditions and the following disclaimer
+// in the documentation and/or other materials provided with the
+// distribution.
+// * Neither the name of Google Inc. nor the names of its
+// contributors may be used to endorse or promote products derived from
+// this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+#endregion
+
+using System;
+using System.Collections;
+using System.Collections.Generic;
+using Google.ProtocolBuffers.Descriptors;
+using Google.ProtocolBuffers.FieldAccess;
+
+namespace Google.ProtocolBuffers
+{
+ /// <summary>
+ /// All generated protocol message builder classes extend this class. It implements
+ /// most of the IBuilder interface using reflection. Users can ignore this class
+ /// as an implementation detail.
+ /// </summary>
+ public abstract partial class GeneratedBuilder<TMessage, TBuilder> : AbstractBuilder<TMessage, TBuilder>
+ where TMessage : GeneratedMessage<TMessage, TBuilder>
+ where TBuilder : GeneratedBuilder<TMessage, TBuilder>, new()
+ {
+ /// <summary>
+ /// Returns the message being built at the moment.
+ /// </summary>
+ protected abstract TMessage MessageBeingBuilt { get; }
+
+ protected internal FieldAccessorTable<TMessage, TBuilder> InternalFieldAccessors
+ {
+ get { return DefaultInstanceForType.FieldAccessorsFromBuilder; }
+ }
+
+ public override IDictionary<FieldDescriptor, object> AllFields
+ {
+ get { return MessageBeingBuilt.AllFields; }
+ }
+
+ public override object this[FieldDescriptor field]
+ {
+ get
+ {
+ // For repeated fields, the underlying list object is still modifiable at this point.
+ // Make sure not to expose the modifiable list to the caller.
+ return field.IsRepeated
+ ? InternalFieldAccessors[field].GetRepeatedWrapper(ThisBuilder)
+ : MessageBeingBuilt[field];
+ }
+ set { InternalFieldAccessors[field].SetValue(ThisBuilder, value); }
+ }
+
+ /// <summary>
+ /// Called by derived classes to parse an unknown field.
+ /// </summary>
+ /// <returns>true unless the tag is an end-group tag</returns>
+ [CLSCompliant(false)]
+ protected virtual bool ParseUnknownField(ICodedInputStream input, UnknownFieldSet.Builder unknownFields,
+ ExtensionRegistry extensionRegistry, uint tag, string fieldName)
+ {
+ return unknownFields.MergeFieldFrom(tag, input);
+ }
+
+ public override MessageDescriptor DescriptorForType
+ {
+ get { return DefaultInstanceForType.DescriptorForType; }
+ }
+
+ public override int GetRepeatedFieldCount(FieldDescriptor field)
+ {
+ return MessageBeingBuilt.GetRepeatedFieldCount(field);
+ }
+
+ public override object this[FieldDescriptor field, int index]
+ {
+ get { return MessageBeingBuilt[field, index]; }
+ set { InternalFieldAccessors[field].SetRepeated(ThisBuilder, index, value); }
+ }
+
+ public override bool HasField(FieldDescriptor field)
+ {
+ return MessageBeingBuilt.HasField(field);
+ }
+
+ public override IBuilder CreateBuilderForField(FieldDescriptor field)
+ {
+ return InternalFieldAccessors[field].CreateBuilder();
+ }
+
+ public override TBuilder ClearField(FieldDescriptor field)
+ {
+ InternalFieldAccessors[field].Clear(ThisBuilder);
+ return ThisBuilder;
+ }
+
+ public override TBuilder MergeFrom(TMessage other)
+ {
+ if (other.DescriptorForType != InternalFieldAccessors.Descriptor)
+ {
+ throw new ArgumentException("Message type mismatch");
+ }
+
+ foreach (KeyValuePair<FieldDescriptor, object> entry in other.AllFields)
+ {
+ FieldDescriptor field = entry.Key;
+ if (field.IsRepeated)
+ {
+ // Concatenate repeated fields
+ foreach (object element in (IEnumerable) entry.Value)
+ {
+ AddRepeatedField(field, element);
+ }
+ }
+ else if (field.MappedType == MappedType.Message && HasField(field))
+ {
+ // Merge singular embedded messages
+ IMessageLite oldValue = (IMessageLite) this[field];
+ this[field] = oldValue.WeakCreateBuilderForType()
+ .WeakMergeFrom(oldValue)
+ .WeakMergeFrom((IMessageLite) entry.Value)
+ .WeakBuildPartial();
+ }
+ else
+ {
+ // Just overwrite
+ this[field] = entry.Value;
+ }
+ }
+
+ //Fix for unknown fields not merging, see java's AbstractMessage.Builder<T> line 236
+ MergeUnknownFields(other.UnknownFields);
+
+ return ThisBuilder;
+ }
+
+ public override TBuilder MergeUnknownFields(UnknownFieldSet unknownFields)
+ {
+ if (unknownFields != UnknownFieldSet.DefaultInstance)
+ {
+ TMessage result = MessageBeingBuilt;
+ result.SetUnknownFields(UnknownFieldSet.CreateBuilder(result.UnknownFields)
+ .MergeFrom(unknownFields)
+ .Build());
+ }
+ return ThisBuilder;
+ }
+
+ public override TBuilder AddRepeatedField(FieldDescriptor field, object value)
+ {
+ InternalFieldAccessors[field].AddRepeated(ThisBuilder, value);
+ return ThisBuilder;
+ }
+
+ /// <summary>
+ /// Like Build(), but will wrap UninitializedMessageException in
+ /// InvalidProtocolBufferException.
+ /// </summary>
+ public TMessage BuildParsed()
+ {
+ if (!IsInitialized)
+ {
+ throw new UninitializedMessageException(MessageBeingBuilt).AsInvalidProtocolBufferException();
+ }
+ return BuildPartial();
+ }
+
+ /// <summary>
+ /// Implementation of <see cref="IBuilder{TMessage, TBuilder}.Build" />.
+ /// </summary>
+ public override TMessage Build()
+ {
+ // If the message is null, we'll throw a more appropriate exception in BuildPartial.
+ if (!IsInitialized)
+ {
+ throw new UninitializedMessageException(MessageBeingBuilt);
+ }
+ return BuildPartial();
+ }
+
+ public override UnknownFieldSet UnknownFields
+ {
+ get { return MessageBeingBuilt.UnknownFields; }
+ set { MessageBeingBuilt.SetUnknownFields(value); }
+ }
+ }
+}
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