How to translate Fortran move_alloc intrinsic in OpenACC kernel?

Question

I'm working on porting a Fortran code on GPU with OpenACC directives. The data structures contain allocatable arrays. When arrays are resized

• a new array (we can call it tmp) is allocated with the new size
• this new array tmp is filled with the content of the allocatable array, attribute of the data structure (with additional 0 if required)
• then move_array intrinsic is used to replace the allocatable in the structure by this new resized array tmp (so no additional copy). If this is efficient in the host code I do not understand how to do this in a Kernel where my data structure and its allocatable are yet offloaded and my new array tmp is created on the GPU.

I search in the OpenACC documentation but it does not look like an attach directive as after the move_array intrinsic call the tmp variable is in deallocated state. So I've no idea how to translate this in a kernel.