ffi: handle copy flag in str type's in virtual.

This solves the second issue described in parent
commit. When a str type is passed in-out using
(ptr str) in a struct or array, the struct or array
is not picking up the new string. The pointer is
freed, but the old object persists.

* ffi.c (ffi_str_in): Function renamed to ffi_str_in.  If the
copy flag is true, retrieves a string from the pointer and
that string is returned instead of the incoming one, mapping a
null pointer to nil.  Either way, the pointer is freed.  Since
ffi_ptr_out_in passes 1 for the copy flag, that ensures we
extract the new string and plant it into the array.

0 files changed, 0 insertions, 0 deletions