dotnet/roslyn
CLR bug with static variable in struct could be warned by the compiler
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#10.126 geöffnet am 26.03.2016
Area-CompilersFeature - Warning WavesFeature Requesthelp wanted
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Beschreibung
The following code compiles, but throws a TypeLoadException when executed.
using System;
namespace ConsoleApplication1
{
class Program
{
static void Main(string[] args)
{
var x = MyStruct.Empty;
}
public struct MyStruct
{
public static readonly MyStruct? Empty = null;
}
}
}
Since Empty is static, this is not a cyclic struct layout issue. It would be nice if the compiler produced warnings that tells you that you are likely to run into this CLR bug at runtime
[Note from @gafter this is due to CLR bug https://github.com/dotnet/coreclr/issues/4049. See also https://github.com/dotnet/coreclr/issues/7957 and https://github.com/dotnet/coreclr/issues/22553 for other situations where the warning would be helpful]