+ typedef intptr_t arg_type;
+#else
+ boost::context::detail::fcontext_t fc_;
+ typedef boost::context::detail::transfer_t arg_type;
+#endif
+ static void wrapper(arg_type arg);
+ static void swap(BoostContext* from, BoostContext* to);
+
+#if HAVE_SANITIZE_ADDRESS_FIBER_SUPPORT
+ const void* asan_stack_ = nullptr;
+ size_t asan_stack_size_ = 0;
+ bool asan_stop_ = false;