Question

I’m working with an AS3 class in Flash Builder 4.6, AIR 3.5.

Can anyone confirm that the following if/else syntax is valid in the class definition. I’ve tested it and it compiles and runs on Mac, but I can’t find documentation that supports it.

package controller
{
    import flash.desktop.NativeApplication;
    import flash.display.NativeMenu;
    import flash.display.NativeMenuItem;
    import flash.display.NativeWindow;
    import flash.events.Event;
    import flash.events.EventDispatcher;
    import flash.events.IEventDispatcher;

    [Bindable]
    public class AppMenu extends EventDispatcher
    {
        if (Capabilities.os.search("Mac")>-1) {
            public var titularMenu:NativeMenu;
            public var fileMenu:NativeMenu;
            public var editMenu:NativeMenu;
            private var optionsMenu:NativeMenu;
            private var addOnsMenu:NativeMenu;
            private var helpMenu:NativeMenu;
        } else {
            // Assign same variables as NativeMenuItem, for Windows.
        }

        // etcetera
    }

Answer 1

No, you can’t have if/else conditionals outside methods or initializers.

For your purpose, you could juste use define the generic properties/methods inside an interface IAppMenu, and then have one implementation per OS (of course, you will still need to define which one to create using Capabilities.os).