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Diffstat (limited to 'csharp/src/ProtocolBuffers/ExtensionRegistry.cs')
| -rw-r--r-- | csharp/src/ProtocolBuffers/ExtensionRegistry.cs | 215 |
1 files changed, 0 insertions, 215 deletions
diff --git a/csharp/src/ProtocolBuffers/ExtensionRegistry.cs b/csharp/src/ProtocolBuffers/ExtensionRegistry.cs deleted file mode 100644 index 7c9467b5..00000000 --- a/csharp/src/ProtocolBuffers/ExtensionRegistry.cs +++ /dev/null @@ -1,215 +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.Generic;
-using Google.ProtocolBuffers.Descriptors;
-
-namespace Google.ProtocolBuffers
-{
- /// <summary>
- /// A table of known extensions, searchable by name or field number. When
- /// parsing a protocol message that might have extensions, you must provide
- /// an <see cref="ExtensionRegistry"/> in which you have registered any extensions
- /// that you want to be able to parse. Otherwise, those extensions will just
- /// be treated like unknown fields.
- /// </summary>
- /// <example>
- /// For example, if you had the <c>.proto</c> file:
- /// <code>
- /// option java_class = "MyProto";
- ///
- /// message Foo {
- /// extensions 1000 to max;
- /// }
- ///
- /// extend Foo {
- /// optional int32 bar;
- /// }
- /// </code>
- ///
- /// Then you might write code like:
- ///
- /// <code>
- /// ExtensionRegistry registry = ExtensionRegistry.CreateInstance();
- /// registry.Add(MyProto.Bar);
- /// MyProto.Foo message = MyProto.Foo.ParseFrom(input, registry);
- /// </code>
- /// </example>
- ///
- /// <remarks>
- /// <para>You might wonder why this is necessary. Two alternatives might come to
- /// mind. First, you might imagine a system where generated extensions are
- /// automatically registered when their containing classes are loaded. This
- /// is a popular technique, but is bad design; among other things, it creates a
- /// situation where behavior can change depending on what classes happen to be
- /// loaded. It also introduces a security vulnerability, because an
- /// unprivileged class could cause its code to be called unexpectedly from a
- /// privileged class by registering itself as an extension of the right type.
- /// </para>
- /// <para>Another option you might consider is lazy parsing: do not parse an
- /// extension until it is first requested, at which point the caller must
- /// provide a type to use. This introduces a different set of problems. First,
- /// it would require a mutex lock any time an extension was accessed, which
- /// would be slow. Second, corrupt data would not be detected until first
- /// access, at which point it would be much harder to deal with it. Third, it
- /// could violate the expectation that message objects are immutable, since the
- /// type provided could be any arbitrary message class. An unprivileged user
- /// could take advantage of this to inject a mutable object into a message
- /// belonging to privileged code and create mischief.</para>
- /// </remarks>
- public sealed partial class ExtensionRegistry
- {
- /// <summary>
- /// Finds an extension by fully-qualified field name, in the
- /// proto namespace, i.e. result.Descriptor.FullName will match
- /// <paramref name="fullName"/> if a match is found. A null
- /// reference is returned if the extension can't be found.
- /// </summary>
- [Obsolete("Please use the FindByName method instead.", true)]
- public ExtensionInfo this[string fullName]
- {
- get
- {
- foreach (IGeneratedExtensionLite ext in extensionsByNumber.Values)
- {
- if (StringComparer.Ordinal.Equals(ext.Descriptor.FullName, fullName))
- {
- return ext as ExtensionInfo;
- }
- }
- return null;
- }
- }
-
-#if !LITE
- /// <summary>
- /// Finds an extension by containing type and field number.
- /// A null reference is returned if the extension can't be found.
- /// </summary>
- public ExtensionInfo this[MessageDescriptor containingType, int fieldNumber]
- {
- get
- {
- IGeneratedExtensionLite ret;
- extensionsByNumber.TryGetValue(new ExtensionIntPair(containingType, fieldNumber), out ret);
- return ret as ExtensionInfo;
- }
- }
-
- public ExtensionInfo FindByName(MessageDescriptor containingType, string fieldName)
- {
- return FindExtensionByName(containingType, fieldName) as ExtensionInfo;
- }
-#endif
-
- /// <summary>
- /// Add an extension from a generated file to the registry.
- /// </summary>
- public void Add<TExtension>(GeneratedExtensionBase<TExtension> extension)
- {
- if (extension.Descriptor.MappedType == MappedType.Message)
- {
- Add(new ExtensionInfo(extension.Descriptor, extension.MessageDefaultInstance));
- }
- else
- {
- Add(new ExtensionInfo(extension.Descriptor, null));
- }
- }
-
- /// <summary>
- /// Adds a non-message-type extension to the registry by descriptor.
- /// </summary>
- /// <param name="type"></param>
- public void Add(FieldDescriptor type)
- {
- if (type.MappedType == MappedType.Message)
- {
- throw new ArgumentException("ExtensionRegistry.Add() must be provided a default instance "
- + "when adding an embedded message extension.");
- }
- Add(new ExtensionInfo(type, null));
- }
-
- /// <summary>
- /// Adds a message-type-extension to the registry by descriptor.
- /// </summary>
- /// <param name="type"></param>
- /// <param name="defaultInstance"></param>
- public void Add(FieldDescriptor type, IMessage defaultInstance)
- {
- if (type.MappedType != MappedType.Message)
- {
- throw new ArgumentException("ExtensionRegistry.Add() provided a default instance for a "
- + "non-message extension.");
- }
- Add(new ExtensionInfo(type, defaultInstance));
- }
-
- private void Add(ExtensionInfo extension)
- {
- if (readOnly)
- {
- throw new InvalidOperationException("Cannot add entries to a read-only extension registry");
- }
- if (!extension.Descriptor.IsExtension)
- {
- throw new ArgumentException("ExtensionRegistry.add() was given a FieldDescriptor for a "
- + "regular (non-extension) field.");
- }
-
- IGeneratedExtensionLite liteExtension = extension;
- Add(liteExtension);
-
- FieldDescriptor field = extension.Descriptor;
- if (field.ContainingType.Options.MessageSetWireFormat
- && field.FieldType == FieldType.Message
- && field.IsOptional
- && field.ExtensionScope == field.MessageType)
- {
- // This is an extension of a MessageSet type defined within the extension
- // type's own scope. For backwards-compatibility, allow it to be looked
- // up by type name.
- Dictionary<string, IGeneratedExtensionLite> map;
- if (extensionsByName.TryGetValue(liteExtension.ContainingType, out map))
- {
- map[field.MessageType.FullName] = extension;
- }
- }
- }
- }
-}
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