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#region Copyright notice and license
// Protocol Buffers - Google's data interchange format
// Copyright 2008 Google Inc. All rights reserved.
//
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file or at
// https://developers.google.com/open-source/licenses/bsd
#endregion
using System;
using System.Security;
namespace Google.Protobuf
{
/// <summary>
/// Provides a number of unsafe byte operations to be used by advanced applications with high performance
/// requirements. These methods are referred to as "unsafe" due to the fact that they potentially expose
/// the backing buffer of a <see cref="ByteString"/> to the application.
/// </summary>
/// <remarks>
/// <para>
/// The methods in this class should only be called if it is guaranteed that the buffer backing the
/// <see cref="ByteString"/> will never change! Mutation of a <see cref="ByteString"/> can lead to unexpected
/// and undesirable consequences in your application, and will likely be difficult to debug. Proceed with caution!
/// </para>
/// <para>
/// This can have a number of significant side affects that have spooky-action-at-a-distance-like behavior. In
/// particular, if the bytes value changes out from under a Protocol Buffer:
/// </para>
/// <list type="bullet">
/// <item>
/// <description>serialization may throw</description>
/// </item>
/// <item>
/// <description>serialization may succeed but the wrong bytes may be written out</description>
/// </item>
/// <item>
/// <description>objects that are normally immutable (such as ByteString) are no longer immutable</description>
/// </item>
/// <item>
/// <description>hashCode may be incorrect</description>
/// </item>
/// </list>
/// </remarks>
[SecuritySafeCritical]
public static class UnsafeByteOperations
{
/// <summary>
/// Constructs a new <see cref="ByteString" /> from the given bytes. The bytes are not copied,
/// and must not be modified while the <see cref="ByteString" /> is in use.
/// This API is experimental and subject to change.
/// </summary>
public static ByteString UnsafeWrap(ReadOnlyMemory<byte> bytes)
{
return ByteString.AttachBytes(bytes);
}
}
}