src/ILCompiler.Compiler/src/Compiler/CompilerMetadataFieldLayoutAlgorithm.cs


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// 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;
using System.Collections.Generic;

using Internal.TypeSystem;

namespace ILCompiler
{
    internal class CompilerMetadataFieldLayoutAlgorithm : MetadataFieldLayoutAlgorithm
    {
        protected override void PrepareRuntimeSpecificStaticFieldLayout(TypeSystemContext context, ref ComputedStaticFieldLayout layout)
        {
            // GC statics start with a pointer to the "EEType" that signals the size and GCDesc to the GC
            layout.GcStatics.Size = context.Target.LayoutPointerSize;
            layout.ThreadStatics.Size = context.Target.LayoutPointerSize;
        }

        protected override void FinalizeRuntimeSpecificStaticFieldLayout(TypeSystemContext context, ref ComputedStaticFieldLayout layout)
        {
            // If the size of GCStatics is equal to the size set in PrepareRuntimeSpecificStaticFieldLayout, we
            // don't have any GC statics
            if (layout.GcStatics.Size == context.Target.LayoutPointerSize)
            {
                layout.GcStatics.Size = LayoutInt.Zero;
            }
            if (layout.ThreadStatics.Size == context.Target.LayoutPointerSize)
            {
                layout.ThreadStatics.Size = LayoutInt.Zero;
            }
        }
    }
}