Added RequiresAssemblyFilesAttribute.

Author: prochnowc

src/AppCoreNet.Attributes.Sources/RequiresAssemblyFilesAttribute.cs

@@ -0,0 +1,55 @@
+// <auto-generated />
+
+#if !NET6_0_OR_GREATER && APPCORENET_ATTRIBUTES_ENABLED && APPCORENET_TRIMMING_ATTRIBUTES_ENABLED
+
+#nullable enable
+
+// Licensed to the .NET Foundation under one or more agreements.
+// The .NET Foundation licenses this file to you under the MIT license.
+
+namespace System.Diagnostics.CodeAnalysis;
+
+/// <summary>
+/// Indicates that the specified member requires assembly files to be on disk.
+/// </summary>
+[AttributeUsage(
+    AttributeTargets.Constructor |
+    AttributeTargets.Event |
+    AttributeTargets.Method |
+    AttributeTargets.Property,
+    Inherited = false)]
+internal sealed class RequiresAssemblyFilesAttribute : Attribute
+{
+    /// <summary>
+    /// Initializes a new instance of the <see cref="RequiresAssemblyFilesAttribute"/> class.
+    /// </summary>
+    public RequiresAssemblyFilesAttribute()
+    {
+    }
+
+    /// <summary>
+    /// Initializes a new instance of the <see cref="RequiresAssemblyFilesAttribute"/> class.
+    /// </summary>
+    /// <param name="message">
+    /// A message that contains information about the need for assembly files to be on disk.
+    /// </param>
+    public RequiresAssemblyFilesAttribute(string message)
+    {
+        Message = message;
+    }
+
+    /// <summary>
+    /// Gets an optional message that contains information about the need for
+    /// assembly files to be on disk.
+    /// </summary>
+    public string? Message { get; }
+
+    /// <summary>
+    /// Gets or sets an optional URL that contains more information about the member,
+    /// why it requires assembly files to be on disk, and what options a consumer has
+    /// to deal with it.
+    /// </summary>
+    public string? Url { get; set; }
+}
+
+#endif