Function custom_subclass

src/test_utils.rs:160–183

()

}

pub fn custom_subclass() -> &'static Class {
    static REGISTER_CUSTOM_SUBCLASS: Once = ONCE_INIT;

    REGISTER_CUSTOM_SUBCLASS.call_once(|| {
        let superclass = custom_class();
        let mut decl = ClassDecl::new("CustomSubclassObject", superclass).unwrap();

        extern fn custom_subclass_get_foo(this: &Object, _cmd: Sel) -> u32 {
            let foo: u32 = unsafe {
                msg_send![super(this, custom_class()), foo]
            };
            foo + 2
        }

        unsafe {
            let get_foo: extern fn(&Object, Sel) -> u32 = custom_subclass_get_foo;
            decl.add_method(sel!(foo), get_foo);
        }

        decl.register();
    });

    class!(CustomSubclassObject)
}

pub fn custom_subclass_object() -> CustomObject {
    CustomObject::new(custom_subclass())