ImplementationTag.cs

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using System.Runtime.CompilerServices;
 
namespace System.Reflection.Metadata.Ecma335;
 
internal static class ImplementationTag
{
    internal const int NumberOfBits = 2;
 
    internal const int LargeRowSize = 16384;
 
    internal const uint File = 0u;
 
    internal const uint AssemblyRef = 1u;
 
    internal const uint ExportedType = 2u;
 
    internal const uint TagMask = 3u;
 
    internal const uint TagToTokenTypeByteVector = 2564902u;
 
    internal const TableMask TablesReferenced = TableMask.AssemblyRef | TableMask.File | TableMask.ExportedType;
 
    [MethodImpl(MethodImplOptions.AggressiveInlining)]
    internal static EntityHandle ConvertToHandle(uint implementation)
    {
        uint num = (uint)(2564902 >>> (int)((implementation & 3) << 3) << 24);
        uint num2 = implementation >> 2;
        if (num == 0 || (num2 & 0xFF000000u) != 0)
        {
            Throw.InvalidCodedIndex();
        }
        return new EntityHandle(num | num2);
    }
}