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-rw-r--r--xmpp-vala/src/core/xmpp_stream.vala8
1 files changed, 4 insertions, 4 deletions
diff --git a/xmpp-vala/src/core/xmpp_stream.vala b/xmpp-vala/src/core/xmpp_stream.vala
index f3be115d..0283920b 100644
--- a/xmpp-vala/src/core/xmpp_stream.vala
+++ b/xmpp-vala/src/core/xmpp_stream.vala
@@ -237,8 +237,8 @@ public class FlagIdentity<T> : Object {
this.id = id;
}
- public T? cast(XmppStreamFlag module) {
- return (T?) module;
+ public T? cast(XmppStreamFlag flag) {
+ return flag.get_type().is_a(typeof(T)) ? (T?) flag : null;
}
public bool matches(XmppStreamFlag module) {
@@ -246,7 +246,7 @@ public class FlagIdentity<T> : Object {
}
}
-public abstract class XmppStreamFlag {
+public abstract class XmppStreamFlag : Object {
public abstract string get_ns();
public abstract string get_id();
}
@@ -261,7 +261,7 @@ public class ModuleIdentity<T> : Object {
}
public T? cast(XmppStreamModule module) {
- return (T?) module;
+ return module.get_type().is_a(typeof(T)) ? (T?) module : null;
}
public bool matches(XmppStreamModule module) {