Keep blittable layout class In/Out by default#50655
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elinor-fung merged 2 commits intodotnet:mainfrom Apr 2, 2021
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jkoritzinsky
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Apr 2, 2021
src/coreclr/vm/mlinfo.cpp
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| // If neither IN nor OUT are true, this signals the URT to use the default | ||
| // rules. | ||
| if (!m_in && !m_out) | ||
| if (alwaysInOut) |
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I think this should only be for non-byref cases.
jkoritzinsky
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Apr 2, 2021
AaronRobinsonMSFT
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Bah, it looks like we have a bug and test gap with handling Before this and #50137, passing null to this p/invoke worked: [StructLayout(LayoutKind.Sequential)]
internal class TestClass
{
public int i;
}
[DllImport("NativeLib", CallingConvention = CallingConvention.Cdecl)]
public static extern void update_test_class([In][Out] TestClass c);Now, it fails with a null ref exception trying to call |
Anipik
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Apr 6, 2021
…ly marshalling the type if it doesn't match the static type in the signature. (#50138) * When marshalling a layout class, fall-back to dynamically marshalling the type if it doesn't match the static type in the signature. * Allocate the correct amount of space for the native data based on the runtime type. * Apply suggestions from code review * Keep blittable layout class In/Out by default (#50655) * Do the exact type check after the null check. Co-authored-by: Elinor Fung <[email protected]>
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cc @jkoritzinsky @AaronRobinsonMSFT
Fixes #50410