PURErat-crack-scode/decompiled/Libraries/microsoft.codeanalysis.csharp/Microsoft.CodeAnalysis.CSharp.Symbols/NullableContextExtensions.cs

using Roslyn.Utilities;

namespace Microsoft.CodeAnalysis.CSharp.Symbols;

internal static class NullableContextExtensions
{
	internal static bool TryGetByte(this NullableContextKind kind, out byte? value)
	{
		switch (kind)
		{
		case NullableContextKind.Unknown:
			value = null;
			return false;
		case NullableContextKind.None:
			value = null;
			return true;
		case NullableContextKind.Oblivious:
			value = 0;
			return true;
		case NullableContextKind.NotAnnotated:
			value = 1;
			return true;
		case NullableContextKind.Annotated:
			value = 2;
			return true;
		default:
			throw ExceptionUtilities.UnexpectedValue((object)kind);
		}
	}

	internal static NullableContextKind ToNullableContextFlags(this byte? value)
	{
		return value switch
		{
			null => NullableContextKind.None, 
			0 => NullableContextKind.Oblivious, 
			1 => NullableContextKind.NotAnnotated, 
			2 => NullableContextKind.Annotated, 
			_ => throw ExceptionUtilities.UnexpectedValue((object)value), 
		};
	}
}