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Diffstat (limited to 'csharp/src/ProtocolBuffers/GeneratedExtensionBase.cs')
| -rw-r--r-- | csharp/src/ProtocolBuffers/GeneratedExtensionBase.cs | 185 |
1 files changed, 0 insertions, 185 deletions
diff --git a/csharp/src/ProtocolBuffers/GeneratedExtensionBase.cs b/csharp/src/ProtocolBuffers/GeneratedExtensionBase.cs deleted file mode 100644 index 424b981a..00000000 --- a/csharp/src/ProtocolBuffers/GeneratedExtensionBase.cs +++ /dev/null @@ -1,185 +0,0 @@ -#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 System.Reflection;
-using Google.ProtocolBuffers.Descriptors;
-
-namespace Google.ProtocolBuffers
-{
- /// <summary>
- /// Base type for all generated extensions.
- /// </summary>
- /// <remarks>
- /// The protocol compiler generates a static singleton instance of this
- /// class for each extension. For exmaple, imagine a .proto file with:
- /// <code>
- /// message Foo {
- /// extensions 1000 to max
- /// }
- ///
- /// extend Foo {
- /// optional int32 bar;
- /// }
- /// </code>
- /// Then MyProto.Foo.Bar has type GeneratedExtensionBase<MyProto.Foo,int>.
- /// <para />
- /// In general, users should ignore the details of this type, and
- /// simply use the static singletons as parameters to the extension accessors
- /// in ExtendableMessage and ExtendableBuilder.
- /// The interface implemented by both GeneratedException and GeneratedRepeatException,
- /// to make it easier to cope with repeats separately.
- /// </remarks>
- public abstract class GeneratedExtensionBase<TExtension>
- {
- private readonly FieldDescriptor descriptor;
- private readonly IMessageLite messageDefaultInstance;
-
- protected GeneratedExtensionBase(FieldDescriptor descriptor, Type singularExtensionType)
- {
- if (!descriptor.IsExtension)
- {
- throw new ArgumentException("GeneratedExtension given a regular (non-extension) field.");
- }
-
- this.descriptor = descriptor;
- if (descriptor.MappedType == MappedType.Message)
- {
- PropertyInfo defaultInstanceProperty = singularExtensionType
- .GetProperty("DefaultInstance", BindingFlags.Static | BindingFlags.Public);
- if (defaultInstanceProperty == null)
- {
- throw new ArgumentException("No public static DefaultInstance property for type " +
- typeof(TExtension).Name);
- }
-
- messageDefaultInstance = (IMessageLite) defaultInstanceProperty.GetValue(null, null);
- }
- }
-
- public FieldDescriptor Descriptor
- {
- get { return descriptor; }
- }
-
- public int Number
- {
- get { return Descriptor.FieldNumber; }
- }
-
- /// <summary>
- /// Returns the default message instance for extensions which are message types.
- /// </summary>
- public IMessageLite MessageDefaultInstance
- {
- get { return messageDefaultInstance; }
- }
-
- public object SingularFromReflectionType(object value)
- {
- switch (Descriptor.MappedType)
- {
- case MappedType.Message:
- if (value is TExtension)
- {
- return value;
- }
- else
- {
- // It seems the copy of the embedded message stored inside the
- // extended message is not of the exact type the user was
- // expecting. This can happen if a user defines a
- // GeneratedExtension manually and gives it a different type.
- // This should not happen in normal use. But, to be nice, we'll
- // copy the message to whatever type the caller was expecting.
- return MessageDefaultInstance.WeakCreateBuilderForType()
- .WeakMergeFrom((IMessageLite) value).WeakBuild();
- }
- case MappedType.Enum:
- // Just return a boxed int - that can be unboxed to the enum
- EnumValueDescriptor enumValue = (EnumValueDescriptor) value;
- return enumValue.Number;
- default:
- return value;
- }
- }
-
- /// <summary>
- /// Converts from the type used by the native accessors to the type
- /// used by reflection accessors. For example, the reflection accessors
- /// for enums use EnumValueDescriptors but the native accessors use
- /// the generated enum type.
- /// </summary>
- public object ToReflectionType(object value)
- {
- if (descriptor.IsRepeated)
- {
- if (descriptor.MappedType == MappedType.Enum)
- {
- // Must convert the whole list.
- IList<object> result = new List<object>();
- foreach (object element in (IEnumerable) value)
- {
- result.Add(SingularToReflectionType(element));
- }
- return result;
- }
- else
- {
- return value;
- }
- }
- else
- {
- return SingularToReflectionType(value);
- }
- }
-
- /// <summary>
- /// Like ToReflectionType(object) but for a single element.
- /// </summary>
- internal Object SingularToReflectionType(object value)
- {
- return descriptor.MappedType == MappedType.Enum
- ? descriptor.EnumType.FindValueByNumber((int) value)
- : value;
- }
-
- public abstract object FromReflectionType(object value);
- }
-}
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