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From jude <flexcapaci...@gmail.com>
Subject Re: Falcon compiler source code / Falcon architecture
Date Thu, 19 Jan 2012 13:56:56 GMT
On Tue, Jan 17, 2012 at 6:48 PM, Alex Harui <aharui@adobe.com> wrote:

> For example, an MXML tag resulted in a UIComponentDescriptor for MX
> components and a tree of functions for Spark components.  The plan was to
> have an MXML tag result in an entry in an Array that consisted of the class
> followed by property name/value pairs.  The SDK would be modified to look
> for that array and call new and apply properties as needed.  Prototypes
> showed that this was not only would this provide independence of SDK
> versions (since the mapping of MXML tag names and attributes to array
> entries is essentially version independent), but also faster because it
> takes advantage of the JIT better than running the Spark tree of individual
> functions once.
>

Can you expand on this? I've been using the model below
(ComponentDescription) to create a working component tree but I've been
planning to debating to extend UIComponentDescriptor.

What I'm using now is shown below:


    /**
     * Contains information about components that can be
     * added or removed from the display list
     * */
    [Bindable]
    public class ComponentDescription {

        public function ComponentDescription(element:Object = null):void {
            if (element) {
                name = NameUtil.getUnqualifiedClassName(element);
                className = getQualifiedClassName(element);
                instance = element;
            }
        }

        /**
         * Unqualified class name
         * */
        public var name:String;

        /**
         * Qualified class name
         * */
        public var className:String;

        /**
         * Class used to create component instance
         * */
        public var classType:Object;

        /**
         * Class or path to icon
         * */
        public var icon:Object;

        /**
         * Default properties
         * */
        public var defaultProperties:Object;

        /**
         * Default styles
         * */
        public var defaultStyles:Object;

        /**
         * Properties
         * */
        public var properties:Object;

        /**
         * Styles
         * */
        public var styles:Object;

        /**
         * Instance of component. Optional.
         * Used for display list
         * */
        public var instance:Object;

        /**
         * Children. Optional.
         * Used for display in heiarchy view such as Tree.
         * */
        public var children:ArrayCollection;

        /**
         * Parent
         * */
        public var parent:ComponentDescription;

        /**
         * Skin class. If it doesn't exist the component
         * may not be able to be added to the display list.
         * */
        public var skin:Class;

        /**
         * Used to store if the instance is visible.
         * Does not check if an ancestor is visible
         * @see parentVisible
         * */
        public var visible:Boolean = true;

        /**
         * Used to store if an ancestor is not visible.
         * Manually set
         * */
        public var parentVisible:Boolean = true;

        /**
         *
         * */
        public var locked:Boolean = false;
    }

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