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Add System.Runtime.CompilerServices.IsExternalInit #37763

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Jun 12, 2020
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Original file line number Diff line number Diff line change
Expand Up @@ -633,6 +633,7 @@
<Compile Include="$(MSBuildThisFileDirectory)System\Runtime\CompilerServices\IntrinsicAttribute.cs" />
<Compile Include="$(MSBuildThisFileDirectory)System\Runtime\CompilerServices\IsByRefLikeAttribute.cs" />
<Compile Include="$(MSBuildThisFileDirectory)System\Runtime\CompilerServices\IsConst.cs" />
<Compile Include="$(MSBuildThisFileDirectory)System\Runtime\CompilerServices\IsExternalInit.cs" />
<Compile Include="$(MSBuildThisFileDirectory)System\Runtime\CompilerServices\IsReadOnlyAttribute.cs" />
<Compile Include="$(MSBuildThisFileDirectory)System\Runtime\CompilerServices\IsVolatile.cs" />
<Compile Include="$(MSBuildThisFileDirectory)System\Runtime\CompilerServices\IteratorStateMachineAttribute.cs" />
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Original file line number Diff line number Diff line change
@@ -0,0 +1,17 @@
// Licensed to the .NET Foundation under one or more agreements.
// The .NET Foundation licenses this file to you under the MIT license.
// See the LICENSE file in the project root for more information.

using System.ComponentModel;

namespace System.Runtime.CompilerServices
{
/// <summary>
/// Reserved to be used by the compiler for tracking metadata.
/// This class should not be used by developers in source code.
/// </summary>
[EditorBrowsable(EditorBrowsableState.Never)]
public static class IsExternalInit
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I just want to clarify... the issue lists the type as sealed:
#34978 (comment)
but here it's static. static rather than sealed was actually intended?

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Yes, after closer examination of other types used by the compiler in modreqs, we decided this should be a static class similar to IsVolatile

{
}
}
4 changes: 4 additions & 0 deletions src/libraries/System.Runtime/ref/System.Runtime.cs
Original file line number Diff line number Diff line change
Expand Up @@ -9026,6 +9026,10 @@ public IsByRefLikeAttribute() { }
public static partial class IsConst
{
}
[System.ComponentModel.EditorBrowsableAttribute(System.ComponentModel.EditorBrowsableState.Never)]
public static class IsExternalInit
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{
}
[System.AttributeUsageAttribute(System.AttributeTargets.All, Inherited=false)]
[System.ComponentModel.EditorBrowsableAttribute(System.ComponentModel.EditorBrowsableState.Never)]
public sealed partial class IsReadOnlyAttribute : System.Attribute
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