// Licensed to the .NET Foundation under one or more agreements.
// The .NET Foundation licenses this file to you under the MIT license.
using System.Runtime.CompilerServices;
namespace System.Reflection.Metadata.Ecma335
{
internal static class ResolutionScopeTag
{
internal const int NumberOfBits = 2;
internal const int LargeRowSize = 0x00000001 << (16 - NumberOfBits);
internal const uint Module = 0x00000000;
internal const uint ModuleRef = 0x00000001;
internal const uint AssemblyRef = 0x00000002;
internal const uint TypeRef = 0x00000003;
internal const uint TagMask = 0x00000003;
internal const uint TagToTokenTypeByteVector = TokenTypeIds.Module >> 24 | TokenTypeIds.ModuleRef >> 16 | TokenTypeIds.AssemblyRef >> 8 | TokenTypeIds.TypeRef;
internal const TableMask TablesReferenced =
TableMask.Module
| TableMask.ModuleRef
| TableMask.AssemblyRef
| TableMask.TypeRef;
[MethodImplAttribute(MethodImplOptions.AggressiveInlining)]
internal static EntityHandle ConvertToHandle(uint resolutionScope)
{
uint tokenType = (TagToTokenTypeByteVector >> ((int)(resolutionScope & TagMask) << 3)) << TokenTypeIds.RowIdBitCount;
uint rowId = (resolutionScope >> NumberOfBits);
if ((rowId & ~TokenTypeIds.RIDMask) != 0)
{
Throw.InvalidCodedIndex();
}
return new EntityHandle(tokenType | rowId);
}
}
}
|