bugfix: correctly handle duplicated calls to setup()

lf-lang · Aug 5, 2022 · 6d642cf · 6d642cf
1 parent 77bb7da
commit 6d642cf
Showing 1 changed file with 3 additions and 2 deletions.
diff --git a/include/reactor-cpp/impl/action_impl.hh b/include/reactor-cpp/impl/action_impl.hh
@@ -52,8 +52,9 @@ template <class Dur> void Action<void>::schedule(Dur delay) {
 }
 
 template <class T> void Action<T>::setup() noexcept {
-  const auto& node = events_.extract(events_.begin());
-  if (!node.empty()) {
+  if (value_ptr_ == nullptr) {
+    const auto& node = events_.extract(events_.begin());
+    reactor_assert(!node.empty());
     value_ptr_ = std::move(node.mapped());
   }
 }