reduce inline code size of Executor::invokeCatchingExns

Summary: Some use-cases can be sensitive to inline code size, so reduce the inline code size of `Executor::invokeCatchingExns` just in case.

Reviewed By: vitaut, zhxchen17

Differential Revision: D26875990

fbshipit-source-id: 0b822f7425bb47c98837faf08216092b49a7ed38

folly/Executor.h

@@ -231,8 +231,8 @@ class Executor {
   }
 
   template <typename F>
-  FOLLY_ERASE static void invokeCatchingExns(char const* prefix, F f) noexcept {
-    auto h = [&](auto const&... e) { invokeCatchingExnsLog(prefix, &e...); };
+  FOLLY_ERASE static void invokeCatchingExns(char const* p, F f) noexcept {
+    auto h = [p](auto&... e) noexcept { invokeCatchingExnsLog(p, &e...); };
     catch_exception([&] { catch_exception<std::exception const&>(f, h); }, h);
   }
 

folly/test/ExecutorTest.cpp

@@ -18,8 +18,13 @@
 
 #include <atomic>
 
+#include <folly/lang/Keep.h>
 #include <folly/portability/GTest.h>
 
+extern "C" FOLLY_KEEP void check_executor_invoke_catching_exns(void (*f)()) {
+  folly::Executor::invokeCatchingExns("check", f);
+}
+
 namespace folly {
 
 class KeepAliveTestExecutor : public Executor {