Merge remote-tracking branch 'origin/templatable-value-specialize' into test_merge_to_beta_again

esphome/components/esp32_ble_tracker/__init__.py

@@ -378,7 +378,8 @@ async def esp32_ble_tracker_start_scan_action_to_code(
 ):
     paren = await cg.get_variable(config[CONF_ID])
     var = cg.new_Pvariable(action_id, template_arg, paren)
-    cg.add(var.set_continuous(config[CONF_CONTINUOUS]))
+    template_ = await cg.templatable(config[CONF_CONTINUOUS], args, cg.bool_)
+    cg.add(var.set_continuous(template_))
     return var
 
 

esphome/cpp_generator.py

@@ -823,9 +823,11 @@ async def templatable(
     """Generate code for a templatable config option.
 
     If `value` is a templated value, the lambda expression is returned.
-    For std::string output, constants are returned as-is (with PROGMEM wrapping).
+    For std::string output, constants are returned as-is (with PROGMEM wrapping),
+    using the std::string-specific TemplatableValue specialization.
     For all other output types, constants are wrapped in stateless lambdas
-    so that TemplatableValue can store them as function pointers.
+    so that TemplatableFn-backed macro-generated fields can store them as
+    function pointers.
 
     :param value: The value to process.
     :param args: The arguments for the lambda expression.