From fc6574992c73454156887cfdd805cecb99e5cdf7 Mon Sep 17 00:00:00 2001
From: "J. Nick Koston" <nick@home-assistant.io>
Date: Mon, 20 Oct 2025 16:59:11 -1000
Subject: [PATCH] [core] Optimize automation actions memory usage with
 std::initializer_list

---
 esphome/components/espnow/automation.h | 4 ++--
 esphome/core/automation.h              | 4 ++--
 esphome/core/base_automation.h         | 8 ++++----
 3 files changed, 8 insertions(+), 8 deletions(-)

diff --git a/esphome/components/espnow/automation.h b/esphome/components/espnow/automation.h
index 2416377859..5415b088fd 100644
--- a/esphome/components/espnow/automation.h
+++ b/esphome/components/espnow/automation.h
@@ -14,13 +14,13 @@ template<typename... Ts> class SendAction : public Action<Ts...>, public Parente
   TEMPLATABLE_VALUE(std::vector<uint8_t>, data);
 
  public:
-  void add_on_sent(const std::vector<Action<Ts...> *> &actions) {
+  void add_on_sent(const std::initializer_list<Action<Ts...> *> &actions) {
     this->sent_.add_actions(actions);
     if (this->flags_.wait_for_sent) {
       this->sent_.add_action(new LambdaAction<Ts...>([this](Ts... x) { this->play_next_(x...); }));
     }
   }
-  void add_on_error(const std::vector<Action<Ts...> *> &actions) {
+  void add_on_error(const std::initializer_list<Action<Ts...> *> &actions) {
     this->error_.add_actions(actions);
     if (this->flags_.wait_for_sent) {
       this->error_.add_action(new LambdaAction<Ts...>([this](Ts... x) {
diff --git a/esphome/core/automation.h b/esphome/core/automation.h
index e156818312..0512752d50 100644
--- a/esphome/core/automation.h
+++ b/esphome/core/automation.h
@@ -243,7 +243,7 @@ template<typename... Ts> class ActionList {
     }
     this->actions_end_ = action;
   }
-  void add_actions(const std::vector<Action<Ts...> *> &actions) {
+  void add_actions(const std::initializer_list<Action<Ts...> *> &actions) {
     for (auto *action : actions) {
       this->add_action(action);
     }
@@ -286,7 +286,7 @@ template<typename... Ts> class Automation {
   explicit Automation(Trigger<Ts...> *trigger) : trigger_(trigger) { this->trigger_->set_automation_parent(this); }
 
   void add_action(Action<Ts...> *action) { this->actions_.add_action(action); }
-  void add_actions(const std::vector<Action<Ts...> *> &actions) { this->actions_.add_actions(actions); }
+  void add_actions(const std::initializer_list<Action<Ts...> *> &actions) { this->actions_.add_actions(actions); }
 
   void stop() { this->actions_.stop(); }
 
diff --git a/esphome/core/base_automation.h b/esphome/core/base_automation.h
index f1248e0035..af8cde971b 100644
--- a/esphome/core/base_automation.h
+++ b/esphome/core/base_automation.h
@@ -194,12 +194,12 @@ template<typename... Ts> class IfAction : public Action<Ts...> {
  public:
   explicit IfAction(Condition<Ts...> *condition) : condition_(condition) {}
 
-  void add_then(const std::vector<Action<Ts...> *> &actions) {
+  void add_then(const std::initializer_list<Action<Ts...> *> &actions) {
     this->then_.add_actions(actions);
     this->then_.add_action(new LambdaAction<Ts...>([this](Ts... x) { this->play_next_(x...); }));
   }
 
-  void add_else(const std::vector<Action<Ts...> *> &actions) {
+  void add_else(const std::initializer_list<Action<Ts...> *> &actions) {
     this->else_.add_actions(actions);
     this->else_.add_action(new LambdaAction<Ts...>([this](Ts... x) { this->play_next_(x...); }));
   }
@@ -240,7 +240,7 @@ template<typename... Ts> class WhileAction : public Action<Ts...> {
  public:
   WhileAction(Condition<Ts...> *condition) : condition_(condition) {}
 
-  void add_then(const std::vector<Action<Ts...> *> &actions) {
+  void add_then(const std::initializer_list<Action<Ts...> *> &actions) {
     this->then_.add_actions(actions);
     this->then_.add_action(new LambdaAction<Ts...>([this](Ts... x) {
       if (this->num_running_ > 0 && this->condition_->check_tuple(this->var_)) {
@@ -287,7 +287,7 @@ template<typename... Ts> class RepeatAction : public Action<Ts...> {
  public:
   TEMPLATABLE_VALUE(uint32_t, count)
 
-  void add_then(const std::vector<Action<uint32_t, Ts...> *> &actions) {
+  void add_then(const std::initializer_list<Action<uint32_t, Ts...> *> &actions) {
     this->then_.add_actions(actions);
     this->then_.add_action(new LambdaAction<uint32_t, Ts...>([this](uint32_t iteration, Ts... x) {
       iteration++;