additional compile-time check: must_be_derived_from_pickle_suite

Ralf W. Grosse-Kunstleve · Ralf W. Grosse-Kunstleve · commit e25fee71a2c3 · 2002-07-22T23:43:00.000Z
[SVN r14568]
diff --git a/include/boost/python/class.hpp b/include/boost/python/class.hpp
@@ -200,6 +200,7 @@ class class_ : public objects::class_base
     template <typename PickleSuiteType>
     self& def_pickle(PickleSuiteType)
     {
+      error_messages::must_be_derived_from_pickle_suite(PickleSuiteType());
       detail::pickle_suite_finalize<PickleSuiteType>::register_(
         *this,
         &PickleSuiteType::getinitargs,
diff --git a/include/boost/python/object/pickle_support.hpp b/include/boost/python/object/pickle_support.hpp
@@ -13,11 +13,14 @@ namespace boost { namespace python {
 
 handle<> make_instance_reduce_function();
 
+struct pickle_suite;
+
 namespace error_messages {
 
   template <class T>
   struct missing_pickle_suite_function_or_incorrect_signature {};
 
+  inline void must_be_derived_from_pickle_suite(pickle_suite const&) {}
 }
 
 namespace detail { struct pickle_suite_registration; }

Original file line number	Diff line number	Diff line change
`@@ -200,6 +200,7 @@ class class_ : public objects::class_base`
`200`	`200`	`template <typename PickleSuiteType>`
`201`	`201`	`self& def_pickle(PickleSuiteType)`
`202`	`202`	`{`
	`203`	`+ error_messages::must_be_derived_from_pickle_suite(PickleSuiteType());`
`203`	`204`	`detail::pickle_suite_finalize<PickleSuiteType>::register_(`
`204`	`205`	`*this,`
`205`	`206`	`&PickleSuiteType::getinitargs,`