The DAM properties does not propagate from BaseType

[kant2002]

Description

I think it's possible to propagate DAM properties in following scenarios.

public static System.Reflection.MethodInfo FindMethod(
#if NET8_0_OR_GREATER
  [DynamicallyAccessedMembers(DynamicallyAccessedMemberTypes.PublicMethods | DynamicallyAccessedMemberTypes.NonPublicMethods)]
#endif
  Type objectType, string method, int parameterCount)
{
  // walk up the inheritance hierarchy looking
  // for a method with the right number of
  // parameters
  System.Reflection.MethodInfo result = null;
  Type currentType = objectType;
  do
  {
    // !!!!!!!!!!!!      HERE IL2075
    System.Reflection.MethodInfo info = currentType.GetMethod(method, oneLevelFlags);
    if (info != null)
    {
      var infoParams = info.GetParameters();
      var pCount = infoParams.Length;
      if (pCount > 0 &&
         ((pCount == 1 && infoParams[0].ParameterType.IsArray) ||
         (infoParams[pCount - 1].GetCustomAttributes(typeof(ParamArrayAttribute), true).Length > 0)))
      {
        // last param is a param array or only param is an array
        if (parameterCount >= pCount - 1)
        {
          // got a match so use it
          result = info;
          break;
        }
      }
      else if (pCount == parameterCount)
      {
        // got a match so use it
        result = info;
        break;
      }
    }
    // !!!!!!!!!!!!      HERE I Want propagation
    currentType = currentType.BaseType;
  } while (currentType != null);

  return result;
}

Is there way to teach illinker to do this kind of analysis?

Reproduction Steps

see description

Expected behavior

When variable of type Type reassigned by call myself.BaseType then attempt to preserve some DAM properties.

Actual behavior

IL2075 warning happens.

Regression?

No response

Known Workarounds

No response

Configuration

No response

Other information

No response

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[MichalStrehovsky]

What's the definition of oneLevelFlags? If it includes BindingFlags.NonPublic, the warning is correct. DynamicallyAccessedMemberTypes.NonPublicMethods matches the semantic of BindingFlags.NonPublic and will not include non-public methods in bases. They can and will be trimmed.

Currently, the only thing you can do is to use DynamicallyAccessedMemberTypes.All. You shouldn't see a warning if you do that. Starting with .NET 10, you'll be able to use DynamicallyAccessedMemberTypes.AllMethods that will work how you expect (include all methods, including non-publics in bases).

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[kant2002]

Thank you. that make sense.

[MichalStrehovsky]

Closing as answered.