[DBus] Explicitly instantiate dbusProperty variant

dbus/property.h

Index: dbus/property.h
diff --git a/dbus/property.h b/dbus/property.h
index f6baffc8a7343cb6e07444fffc28e69ae79e9726..d30e076675674073b0b4775a277d4fcfaeeea6d1 100644
--- a/dbus/property.h
+++ b/dbus/property.h
@@ -409,67 +409,81 @@ class CHROME_DBUS_EXPORT Property : public PropertyBase {
 template <> Property<uint8>::Property();
 template <> bool Property<uint8>::PopValueFromReader(MessageReader* reader);
 template <> void Property<uint8>::AppendSetValueToWriter(MessageWriter* writer);

[Nico, 2014/07/23 15:31:00]

Explicitly instantiating a template class instantiates all its methods, so you
can remove all the method instantiations from this file now, I think

[tzik, 2014/07/23 15:39:42]

I think this is a specialization rather than an instantiation.
Removing them causes compile error like this:
../../dbus/property.cc:220:18: error: explicit specialization of 'Property'
after instantiation

[Nico, 2014/07/23 15:41:26]

Ah, right.

+extern template class CHROME_DBUS_EXPORT Property<uint8>;
 
 template <> Property<bool>::Property();
 template <> bool Property<bool>::PopValueFromReader(MessageReader* reader);
 template <> void Property<bool>::AppendSetValueToWriter(MessageWriter* writer);
+extern template class CHROME_DBUS_EXPORT Property<bool>;
 
 template <> Property<int16>::Property();
 template <> bool Property<int16>::PopValueFromReader(MessageReader* reader);
 template <> void Property<int16>::AppendSetValueToWriter(MessageWriter* writer);
+extern template class CHROME_DBUS_EXPORT Property<int16>;
 
 template <> Property<uint16>::Property();
 template <> bool Property<uint16>::PopValueFromReader(MessageReader* reader);
 template <> void Property<uint16>::AppendSetValueToWriter(
   MessageWriter* writer);
+extern template class CHROME_DBUS_EXPORT Property<uint16>;
 
 template <> Property<int32>::Property();
 template <> bool Property<int32>::PopValueFromReader(MessageReader* reader);
 template <> void Property<int32>::AppendSetValueToWriter(MessageWriter* writer);
+extern template class CHROME_DBUS_EXPORT Property<int32>;
 
 template <> Property<uint32>::Property();
 template <> bool Property<uint32>::PopValueFromReader(MessageReader* reader);
 template <> void Property<uint32>::AppendSetValueToWriter(
   MessageWriter* writer);
+extern template class CHROME_DBUS_EXPORT Property<uint32>;
 
 template <> Property<int64>::Property();
 template <> bool Property<int64>::PopValueFromReader(MessageReader* reader);
 template <> void Property<int64>::AppendSetValueToWriter(MessageWriter* writer);
+extern template class CHROME_DBUS_EXPORT Property<int64>;
 
 template <> Property<uint64>::Property();
 template <> bool Property<uint64>::PopValueFromReader(MessageReader* reader);
 template <> void Property<uint64>::AppendSetValueToWriter(
   MessageWriter* writer);
+extern template class CHROME_DBUS_EXPORT Property<uint64>;
 
 template <> Property<double>::Property();
 template <> bool Property<double>::PopValueFromReader(MessageReader* reader);
 template <> void Property<double>::AppendSetValueToWriter(
   MessageWriter* writer);
+extern template class CHROME_DBUS_EXPORT Property<double>;
 
 template <> bool Property<std::string>::PopValueFromReader(
   MessageReader* reader);
 template <> void Property<std::string>::AppendSetValueToWriter(
   MessageWriter* writer);
+extern template class CHROME_DBUS_EXPORT Property<std::string>;
 
 template <> bool Property<ObjectPath>::PopValueFromReader(
   MessageReader* reader);
 template <> void Property<ObjectPath>::AppendSetValueToWriter(
   MessageWriter* writer);
+extern template class CHROME_DBUS_EXPORT Property<ObjectPath>;
 
 template <> bool Property<std::vector<std::string> >::PopValueFromReader(
   MessageReader* reader);
 template <> void Property<std::vector<std::string> >::AppendSetValueToWriter(
   MessageWriter* writer);
+extern template class CHROME_DBUS_EXPORT Property<std::vector<std::string> >;
 
 template <> bool Property<std::vector<ObjectPath> >::PopValueFromReader(
   MessageReader* reader);
 template <> void Property<std::vector<ObjectPath> >::AppendSetValueToWriter(
   MessageWriter* writer);
+extern template class CHROME_DBUS_EXPORT Property<std::vector<ObjectPath> >;
 
 template <> bool Property<std::vector<uint8> >::PopValueFromReader(
   MessageReader* reader);
 template <> void Property<std::vector<uint8> >::AppendSetValueToWriter(
   MessageWriter* writer);
+extern template class CHROME_DBUS_EXPORT Property<std::vector<uint8> >;
 
 }  // namespace dbus