1 #region Copyright notice and license
2 // Protocol Buffers - Google's data interchange format
3 // Copyright 2015 Google Inc.  All rights reserved.
4 // https://developers.google.com/protocol-buffers/
5 //
6 // Redistribution and use in source and binary forms, with or without
7 // modification, are permitted provided that the following conditions are
8 // met:
9 //
10 //     * Redistributions of source code must retain the above copyright
11 // notice, this list of conditions and the following disclaimer.
12 //     * Redistributions in binary form must reproduce the above
13 // copyright notice, this list of conditions and the following disclaimer
14 // in the documentation and/or other materials provided with the
15 // distribution.
16 //     * Neither the name of Google Inc. nor the names of its
17 // contributors may be used to endorse or promote products derived from
18 // this software without specific prior written permission.
19 //
20 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
21 // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
22 // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
23 // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
24 // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
25 // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
26 // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
27 // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
28 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
29 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
30 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
31 #endregion
32 
33 #if !NET5_0_OR_GREATER
34 // Copied with permission from https://github.com/dotnet/runtime/tree/8fbf206d0e518b45ca855832e8bfb391afa85972/src/libraries/System.Private.CoreLib/src/System/Diagnostics/CodeAnalysis
35 namespace System.Diagnostics.CodeAnalysis
36 {
37     /// <summary>
38     /// Indicates that the specified method requires dynamic access to code that is not referenced
39     /// statically, for example through <see cref="System.Reflection"/>.
40     /// </summary>
41     /// <remarks>
42     /// This allows tools to understand which methods are unsafe to call when removing unreferenced
43     /// code from an application.
44     /// </remarks>
45     [AttributeUsage(AttributeTargets.Method | AttributeTargets.Constructor | AttributeTargets.Class, Inherited = false)]
46     internal sealed class RequiresUnreferencedCodeAttribute : Attribute
47     {
48         /// <summary>
49         /// Initializes a new instance of the <see cref="RequiresUnreferencedCodeAttribute"/> class
50         /// with the specified message.
51         /// </summary>
52         /// <param name="message">
53         /// A message that contains information about the usage of unreferenced code.
54         /// </param>
RequiresUnreferencedCodeAttribute(string message)55         public RequiresUnreferencedCodeAttribute(string message)
56         {
57             Message = message;
58         }
59 
60         /// <summary>
61         /// Gets a message that contains information about the usage of unreferenced code.
62         /// </summary>
63         public string Message { get; }
64 
65         /// <summary>
66         /// Gets or sets an optional URL that contains more information about the method,
67         /// why it requires unreferenced code, and what options a consumer has to deal with it.
68         /// </summary>
69         public string Url { get; set; }
70     }
71 }
72 #endif
73