vala: Add DelegateType.target/destroy fields to access its user-data

Fixes https://gitlab.gnome.org/GNOME/vala/issues/857

1 files changed, 23 insertions, 0 deletions

diff --git a/tests/delegates/member-target-destroy.vala b/tests/delegates/member-target-destroy.vala
new file mode 100644
index 000000000..468bff95f
--- /dev/null
+++ b/tests/delegates/member-target-destroy.vala
@@ -0,0 +1,23 @@
+delegate string Foo ();
+
+string bar (string s) {
+	return s;
+}
+
+void foo_free (void* data) {
+	GLib.free (data);
+}
+
+void main () {
+	Foo foo = (Foo) bar;
+	assert (foo.target == null);
+	assert (foo.destroy == null);
+
+	string* foo_data = "foo".dup ();
+	foo.target = foo_data;
+	foo.destroy = (GLib.DestroyNotify) foo_free;
+
+	assert (foo () == "foo");
+	assert (foo.target == foo_data);
+	assert (foo.destroy == (GLib.DestroyNotify) foo_free);
+}