Function mentat_ffi::utils::error::translate_opt_result

pub unsafe fn translate_opt_result<T, E>(
    result: Result<Option<T>, E>, 
    error: *mut ExternError
) -> *mut T where
    E: Display, 

Translate Result<Option, E> into something C can understand, when T is not #[repr(C)].

• If result is Ok(Some(v)), moves v to the heap and returns a pointer to it, and sets error to a state indicating that no error occurred (message is null).
• If result is Ok(None) returns a null pointer, but sets error to a state indicating that no error occurred (message is null).
• If result is Err(e), returns a null pointer and stores a string representing the error message (which was allocated on the heap and should eventually be freed) into error.message