fix: avoid copy constructor instantiation in shared_ptr fallback cast

virtuald · virtuald · commit ac840cf75009 · 2026-04-05T16:40:06.000-04:00
diff --git a/include/pybind11/cast.h b/include/pybind11/cast.h
@@ -1027,8 +1027,8 @@ struct copyable_holder_caster<
         }
 
         if (parent) {
-            return type_caster_base<type>::cast(
-                srcs, return_value_policy::reference_internal, parent);
+            return type_caster_generic::cast(
+                srcs, return_value_policy::reference_internal, parent, nullptr, nullptr);
         }
 
         throw cast_error("Unable to convert std::shared_ptr<T> to Python when the bound type "

Original file line number	Diff line number	Diff line change
`@@ -1027,8 +1027,8 @@ struct copyable_holder_caster<`
`1027`	`1027`	`}`
`1028`	`1028`
`1029`	`1029`	`if (parent) {`
`1030`		`- return type_caster_base<type>::cast(`
`1031`		`- srcs, return_value_policy::reference_internal, parent);`
	`1030`	`+ return type_caster_generic::cast(`
	`1031`	`+ srcs, return_value_policy::reference_internal, parent, nullptr, nullptr);`
`1032`	`1032`	`}`
`1033`	`1033`
`1034`	`1034`	`throw cast_error("Unable to convert std::shared_ptr<T> to Python when the bound type "`