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public delegate string FooFunc (Foo foo, string s);
public class Foo : Object {
public signal string test (string s);
public void add (FooFunc func) {
test.connect (func);
}
public void add_owned (owned FooFunc func) {
test.connect (func);
}
public void add_remove (FooFunc func) {
test.connect (func);
test.disconnect (func);
}
public void add_remove_owned (owned FooFunc func) {
test.connect (func);
test.disconnect (func);
}
public void invoke_test () {
assert (test ("bar") == "foo");
}
public void invoke_test_empty () {
assert (test ("bar") == null);
}
}
public class Bar : Object {
public signal string test (string s);
int i;
public Bar (Foo foo) {
i = 42;
foo.add (instance_callback);
}
public Bar.owned (Foo foo) {
i = 42;
foo.add_owned (instance_callback);
}
public Bar.remove (Foo foo) {
i = 42;
foo.add_remove (instance_callback);
}
public Bar.remove_owned (Foo foo) {
i = 42;
foo.add_remove_owned (instance_callback);
}
string instance_callback (Foo foo, string s) {
assert (foo is Foo);
assert (this is Bar);
assert (s == "bar");
assert (i == 42);
return "foo";
}
}
string callback_static (Foo foo, string s) {
assert (foo is Foo);
assert (s == "bar");
return "foo";
}
void main () {
Foo foo;
Bar bar;
foo = new Foo ();
foo.add ((FooFunc) callback_static);
foo.invoke_test ();
foo = new Foo ();
foo.add_owned ((FooFunc) callback_static);
foo.invoke_test ();
foo = new Foo ();
foo.add_remove ((FooFunc) callback_static);
foo.invoke_test_empty ();
foo = new Foo ();
foo.add_remove_owned ((FooFunc) callback_static);
foo.invoke_test_empty ();
foo = new Foo ();
bar = new Bar (foo);
foo.invoke_test ();
foo = new Foo ();
bar = new Bar.owned (foo);
foo.invoke_test ();
foo = new Foo ();
bar = new Bar.remove (foo);
foo.invoke_test_empty ();
foo = new Foo ();
bar = new Bar.remove_owned (foo);
foo.invoke_test_empty ();
}
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