From 6022483a6062615b371e9c82758754494318c49c Mon Sep 17 00:00:00 2001
From: artpaul <artmkin@gmail.com>
Date: Thu, 22 May 2025 17:37:52 +0500
Subject: [PATCH 1/3] helper base class move_only

---
 include/acto/util.h | 18 ++++++++++++++++++
 test/tests.cpp      | 25 +++++++++++++++++++++++++
 2 files changed, 43 insertions(+)
 create mode 100644 include/acto/util.h

diff --git a/include/acto/util.h b/include/acto/util.h
new file mode 100644
index 0000000..e1d2ed6
--- /dev/null
+++ b/include/acto/util.h
@@ -0,0 +1,18 @@
+#pragma once
+
+namespace acto::util {
+
+/**
+ * This base class is usefull for defining move-only events.
+ */
+struct move_only {
+  constexpr move_only() = default;
+
+  constexpr move_only(const move_only&) = delete;
+  constexpr move_only(move_only&&) noexcept = default;
+
+  constexpr move_only& operator=(const move_only&) = delete;
+  constexpr move_only& operator=(move_only&&) noexcept = default;
+};
+
+} // namespace acto::util
diff --git a/test/tests.cpp b/test/tests.cpp
index 2afa888..99b7add 100644
--- a/test/tests.cpp
+++ b/test/tests.cpp
@@ -1,5 +1,6 @@
 #include "catch.hpp"
 #include <acto/acto.h>
+#include <acto/util.h>
 
 #include <atomic>
 #include <iostream>
@@ -196,6 +197,30 @@ TEST_CASE("Key for containers") {
   acto::destroy(b);
 }
 
+TEST_CASE("Move only") {
+  struct A : acto::actor {
+    struct M : acto::util::move_only {
+      std::string s;
+    };
+
+    A() {
+      actor::handler<M>([this](M e) {
+        handle(std::move(e));
+        actor::die();
+      });
+    }
+
+    void handle(M&& m) {
+      REQUIRE(m.s == "test");
+    }
+  };
+
+  A::M ev{.s = "test"};
+  auto a = acto::spawn<A>();
+  a.send(std::move(ev));
+  acto::join(a);
+}
+
 TEST_CASE("Send from bootstrap") {
   struct A : acto::actor {
     struct M { };

From d66fcaedf7436104dbfc46e477a9bf2e25a91a42 Mon Sep 17 00:00:00 2001
From: artpaul <artmkin@gmail.com>
Date: Thu, 22 May 2025 17:39:56 +0500
Subject: [PATCH 2/3] typo

---
 include/acto/util.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/include/acto/util.h b/include/acto/util.h
index e1d2ed6..b72fe0d 100644
--- a/include/acto/util.h
+++ b/include/acto/util.h
@@ -3,7 +3,7 @@
 namespace acto::util {
 
 /**
- * This base class is usefull for defining move-only events.
+ * This base class is useful for defining move-only events.
  */
 struct move_only {
   constexpr move_only() = default;

From 9fc86c888d91b8d10a0abb31649852e0c825ab71 Mon Sep 17 00:00:00 2001
From: artpaul <artmkin@gmail.com>
Date: Thu, 22 May 2025 17:42:09 +0500
Subject: [PATCH 3/3] fix

---
 test/tests.cpp | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/test/tests.cpp b/test/tests.cpp
index 99b7add..4c12b6f 100644
--- a/test/tests.cpp
+++ b/test/tests.cpp
@@ -215,7 +215,8 @@ TEST_CASE("Move only") {
     }
   };
 
-  A::M ev{.s = "test"};
+  A::M ev;
+  ev.s = "test";
   auto a = acto::spawn<A>();
   a.send(std::move(ev));
   acto::join(a);