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class Foo {
}
class FooIterator {
bool called = false;
public bool next () {
return !called;
}
public Foo @get () {
assert (!called);
called = true;
return foo_instance;
}
}
class FooCollection {
public FooIterator iterator () {
return new FooIterator ();
}
}
class FooIterator2 {
bool called = false;
public Foo? next_value () {
if (called)
return null;
called = true;
return foo_instance;
}
}
class FooCollection2 {
public FooIterator2 iterator () {
return new FooIterator2 ();
}
}
class FooCollection3 {
public int size { get { return 1; } }
public Foo @get (int index) {
assert (index == 0);
return foo_instance;
}
}
Foo foo_instance;
void main () {
foo_instance = new Foo ();
// Uses next() and get()
var collection = new FooCollection ();
foreach (var foo in collection) {
assert (foo == foo_instance);
}
// Uses next_value()
var collection2 = new FooCollection2 ();
foreach (var foo2 in collection2) {
assert (foo2 == foo_instance);
}
// Uses size and get()
var collection3 = new FooCollection3 ();
foreach (var foo3 in collection3) {
assert (foo3 == foo_instance);
}
// GLib.List
var list = new List<Foo> ();
list.append (foo_instance);
foreach (var e in list) {
assert (e == foo_instance);
}
// GLib.SList
var slist = new SList<Foo> ();
slist.append (foo_instance);
foreach (var e in slist) {
assert (e == foo_instance);
}
}
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