By value out CCW does not allocate an array to pass to the interface method. Instead it passes a null pointer.
public void ByValueOutParam([MarshalUsing(ConstantElementCount = 10)][Out] string[] value);
Generated:
internal static int ABI_ByValueOutParam(System.Runtime.InteropServices.ComWrappers.ComInterfaceDispatch* __this_native, nint* __value_native)
{
global::SharedTypes.ComInterfaces.MarshallingFails.IStringArrayMarshallingFails @this = default;
string[] value = default;
int __retVal = default;
// Setup - Perform required setup.
int __value_native__numElements;
System.Runtime.CompilerServices.Unsafe.SkipInit(out __value_native__numElements);
try
{
// Unmarshal - Convert native data to managed data.
__retVal = 0; // S_OK
global::System.Runtime.InteropServices.Marshalling.ArrayMarshaller<string, nint>.GetManagedValuesDestination(value).Clear();
@this = System.Runtime.InteropServices.ComWrappers.ComInterfaceDispatch.GetInstance<global::SharedTypes.ComInterfaces.MarshallingFails.IStringArrayMarshallingFails>(__this_native);
// Call method on null parameter
@this.ByValueOutParam(value);
// Marshal - Convert managed data to native data.
{
__value_native__numElements = global::System.Runtime.InteropServices.Marshalling.ArrayMarshaller<string, nint>.GetManagedValuesDestination(value).Length;
System.Span<nint> __value_native__nativeSpan = System.Runtime.InteropServices.MemoryMarshal.CreateSpan(ref System.Runtime.CompilerServices.Unsafe.AsRef(in global::System.Runtime.InteropServices.Marshalling.ArrayMarshaller<string, nint>.GetUnmanagedValuesSource(__value_native, __value_native__numElements).GetPinnableReference()), __value_native__numElements);
System.Span<string> __value_native__managedSpan = global::System.Runtime.InteropServices.Marshalling.ArrayMarshaller<string, nint>.GetManagedValuesDestination(value);
for (int __i0 = 0; __i0 < __value_native__numElements; ++__i0)
{
nint __value_native__nativeSpan____i0__original = __value_native__nativeSpan[__i0];
__value_native__nativeSpan[__i0] = global::SharedTypes.ComInterfaces.MarshallingFails.StringMarshallingFails.ConvertToUnmanaged(__value_native__managedSpan[__i0]);
}
}
}
catch (System.Exception __exception)
{
__retVal = System.Runtime.InteropServices.Marshalling.ExceptionAsHResultMarshaller<int>.ConvertToUnmanaged(__exception);
}
return __retVal;
}
By value out CCW does not allocate an array to pass to the interface method. Instead it passes a null pointer.
Generated: