Squashed 'third_party/protobuf/' content from commit e35e248
Change-Id: I6cbe123d09fe50fdcad0e51466665daeee7433c7
git-subtree-dir: third_party/protobuf
git-subtree-split: e35e24800fb8d694bdeea5fd63dc7d1b14d68723
diff --git a/csharp/src/Google.Protobuf/Compatibility/PropertyInfoExtensions.cs b/csharp/src/Google.Protobuf/Compatibility/PropertyInfoExtensions.cs
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+++ b/csharp/src/Google.Protobuf/Compatibility/PropertyInfoExtensions.cs
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+#region Copyright notice and license
+// Protocol Buffers - Google's data interchange format
+// Copyright 2015 Google Inc. All rights reserved.
+// https://developers.google.com/protocol-buffers/
+//
+// 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.Reflection;
+
+namespace Google.Protobuf.Compatibility
+{
+ /// <summary>
+ /// Extension methods for <see cref="PropertyInfo"/>, effectively providing
+ /// the familiar members from previous desktop framework versions while
+ /// targeting the newer releases, .NET Core etc.
+ /// </summary>
+ internal static class PropertyInfoExtensions
+ {
+ /// <summary>
+ /// Returns the public getter of a property, or null if there is no such getter
+ /// (either because it's read-only, or the getter isn't public).
+ /// </summary>
+ internal static MethodInfo GetGetMethod(this PropertyInfo target)
+ {
+ var method = target.GetMethod;
+ return method != null && method.IsPublic ? method : null;
+ }
+
+ /// <summary>
+ /// Returns the public setter of a property, or null if there is no such setter
+ /// (either because it's write-only, or the setter isn't public).
+ /// </summary>
+ internal static MethodInfo GetSetMethod(this PropertyInfo target)
+ {
+ var method = target.SetMethod;
+ return method != null && method.IsPublic ? method : null;
+ }
+ }
+}
diff --git a/csharp/src/Google.Protobuf/Compatibility/TypeExtensions.cs b/csharp/src/Google.Protobuf/Compatibility/TypeExtensions.cs
new file mode 100644
index 0000000..762a29e
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+++ b/csharp/src/Google.Protobuf/Compatibility/TypeExtensions.cs
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+#region Copyright notice and license
+// Protocol Buffers - Google's data interchange format
+// Copyright 2015 Google Inc. All rights reserved.
+// https://developers.google.com/protocol-buffers/
+//
+// 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.Reflection;
+
+namespace Google.Protobuf.Compatibility
+{
+ /// <summary>
+ /// Provides extension methods on Type that just proxy to TypeInfo.
+ /// These are used to support the new type system from .NET 4.5, without
+ /// having calls to GetTypeInfo all over the place. While the methods here are meant to be
+ /// broadly compatible with the desktop framework, there are some subtle differences in behaviour - but
+ /// they're not expected to affect our use cases. While the class is internal, that should be fine: we can
+ /// evaluate each new use appropriately.
+ /// </summary>
+ internal static class TypeExtensions
+ {
+ /// <summary>
+ /// Returns true if the target type is a value type, including a nullable value type or an enum, or false
+ /// if it's a reference type (class, delegate, interface - including System.ValueType and System.Enum).
+ /// </summary>
+ internal static bool IsValueType(this Type target)
+ {
+ return target.GetTypeInfo().IsValueType;
+ }
+
+ /// <summary>
+ /// See https://msdn.microsoft.com/en-us/library/system.type.isassignablefrom
+ /// </summary>
+ internal static bool IsAssignableFrom(this Type target, Type c)
+ {
+ return target.GetTypeInfo().IsAssignableFrom(c.GetTypeInfo());
+ }
+
+ /// <summary>
+ /// Returns a representation of the public property associated with the given name in the given type,
+ /// including inherited properties or null if there is no such public property.
+ /// Here, "public property" means a property where either the getter, or the setter, or both, is public.
+ /// </summary>
+ internal static PropertyInfo GetProperty(this Type target, string name)
+ {
+ // GetDeclaredProperty only returns properties declared in the given type, so we need to recurse.
+ while (target != null)
+ {
+ var typeInfo = target.GetTypeInfo();
+ var ret = typeInfo.GetDeclaredProperty(name);
+ if (ret != null && ((ret.CanRead && ret.GetMethod.IsPublic) || (ret.CanWrite && ret.SetMethod.IsPublic)))
+ {
+ return ret;
+ }
+ target = typeInfo.BaseType;
+ }
+ return null;
+ }
+
+ /// <summary>
+ /// Returns a representation of the public method associated with the given name in the given type,
+ /// including inherited methods.
+ /// </summary>
+ /// <remarks>
+ /// This has a few differences compared with Type.GetMethod in the desktop framework. It will throw
+ /// if there is an ambiguous match even between a private method and a public one, but it *won't* throw
+ /// if there are two overloads at different levels in the type hierarchy (e.g. class Base declares public void Foo(int) and
+ /// class Child : Base declares public void Foo(long)).
+ /// </remarks>
+ /// <exception cref="AmbiguousMatchException">One type in the hierarchy declared more than one method with the same name</exception>
+ internal static MethodInfo GetMethod(this Type target, string name)
+ {
+ // GetDeclaredMethod only returns methods declared in the given type, so we need to recurse.
+ while (target != null)
+ {
+ var typeInfo = target.GetTypeInfo();
+ var ret = typeInfo.GetDeclaredMethod(name);
+ if (ret != null && ret.IsPublic)
+ {
+ return ret;
+ }
+ target = typeInfo.BaseType;
+ }
+ return null;
+ }
+ }
+}