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Two remaining structures in the rust interface were still using raw string pointer and length couples to communicate with the C++ library throught extern C functions. Using FFIString instead allow us to reduce the scope of potential errors using those raw pointers. As FFIString encapsulate raw pointer operations there will be only one locaiton to look after. libgrust/ChangeLog: * libproc_macro/rust/bridge/literal.rs: Change extern C function argument from raw string pointer and length to FFIString. * libproc_macro/rust/bridge/token_stream.rs: Likewise. Signed-off-by: Pierre-Emmanuel Patry <pierre-emmanuel.patry@embecosm.com>
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