check calls for Function exec ops

Summary: Exec ops include move and nuke ops.

Reviewed By: ot, philippv

Differential Revision: D32904615

fbshipit-source-id: cb6ffa81f034c2dd8072ebd605dc8caabac2f199

folly/test/FunctionTest.cpp

@@ -20,10 +20,19 @@
 #include <cstdarg>
 
 #include <folly/Memory.h>
+#include <folly/lang/Keep.h>
 #include <folly/portability/GTest.h>
 
 using folly::Function;
 
+extern "C" FOLLY_KEEP void check_folly_function_move(void* src, void* dst) {
+  new (dst) Function<void()>(std::move(*static_cast<Function<void()>*>(src)));
+}
+
+extern "C" FOLLY_KEEP void check_folly_function_nuke(void* fun) {
+  static_cast<Function<void()>*>(fun)->~Function();
+}
+
 namespace {
 int func_int_int_add_25(int x) {
   return x + 25;