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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 Internal.NativeFormat;
using Debug = System.Diagnostics.Debug;
namespace Internal.TypeSystem
{
public class UniversalCanonLayoutAlgorithm : FieldLayoutAlgorithm
{
public static UniversalCanonLayoutAlgorithm Instance = new UniversalCanonLayoutAlgorithm();
private UniversalCanonLayoutAlgorithm() { }
public override bool ComputeContainsGCPointers(DefType type)
{
// This should never be called
throw new NotSupportedException();
}
public override DefType ComputeHomogeneousFloatAggregateElementType(DefType type)
{
return null;
}
public override ComputedInstanceFieldLayout ComputeInstanceLayout(DefType type, InstanceLayoutKind layoutKind)
{
return new ComputedInstanceFieldLayout()
{
FieldSize = LayoutInt.Indeterminate,
FieldAlignment = LayoutInt.Indeterminate,
ByteCountUnaligned = LayoutInt.Indeterminate,
ByteCountAlignment = LayoutInt.Indeterminate,
Offsets = Array.Empty<FieldAndOffset>()
};
}
public override ComputedStaticFieldLayout ComputeStaticFieldLayout(DefType type, StaticLayoutKind layoutKind)
{
return new ComputedStaticFieldLayout()
{
NonGcStatics = new StaticsBlock() { Size = LayoutInt.Zero, LargestAlignment = LayoutInt.Zero },
GcStatics = new StaticsBlock() { Size = LayoutInt.Zero, LargestAlignment = LayoutInt.Zero },
ThreadNonGcStatics = new StaticsBlock() { Size = LayoutInt.Zero, LargestAlignment = LayoutInt.Zero },
ThreadGcStatics = new StaticsBlock() { Size = LayoutInt.Zero, LargestAlignment = LayoutInt.Zero },
Offsets = Array.Empty<FieldAndOffset>()
};
}
public override ValueTypeShapeCharacteristics ComputeValueTypeShapeCharacteristics(DefType type)
{
return ValueTypeShapeCharacteristics.None;
}
}
}
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