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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.
namespace Internal.TypeSystem
{
// Holds code for canonicalizing a function pointer type
public partial class FunctionPointerType
{
public override bool IsCanonicalSubtype(CanonicalFormKind policy)
{
if (_signature.ReturnType.IsCanonicalSubtype(policy))
return true;
for (int i = 0; i < _signature.Length; i++)
if (_signature[i].IsCanonicalSubtype(policy))
return true;
return false;
}
protected override TypeDesc ConvertToCanonFormImpl(CanonicalFormKind kind)
{
MethodSignatureBuilder sigBuilder = new MethodSignatureBuilder(_signature);
sigBuilder.ReturnType = Context.ConvertToCanon(_signature.ReturnType, kind);
for (int i = 0; i < _signature.Length; i++)
sigBuilder[i] = Context.ConvertToCanon(_signature[i], kind);
MethodSignature canonSignature = sigBuilder.ToSignature();
if (canonSignature != _signature)
return Context.GetFunctionPointerType(canonSignature);
return this;
}
}
}
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