moonbit-docs

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we can bind this C function and pass closure to it using the following trick:

current moonc insert moonbit_incref ouside the closure, but in FFI boundary moonc insert this instruction is impossible.

a possible solutiion is insert this instruction inside the closure BLOCK BEGIN, and then insert moonbit_decref in the closure BLOCK END. like C++ RAII.

example

reproduce step

moonbit-docs ffi trick