I made a post to the adobe AS3.0 forum regarding the following problem which came up using the Flex compiler. Please view the full post for more details.
"Event bubbling causes a compiler error when it should not." - High up in the display list, a listener has been added for TypeBEvent which extends TypeAEvent. - Lower in the display list, a different object dispatches a TypeAEvent, and sets bubbling to true (and possibly, cancellable to false). - A Type Coercion error (#1034) results! The listener receives the bubbled event which is of the same type as the base class of the handler event type. The event object "cannot be converted" to the TypeBEvent it is receiving. "...the player breaks and does not provide any clue as to where, it only indicates the dispatching class as a culprit. Even short of fixing the problem, improving the error message so that the receiving event handler is clearly implicated would be a start. "Again I am of the opinion that this compiler error should not take place at all because the top class subscribed specifically to the subclassed event type." Full post: http://www.adobe.com/cfusion/webforums/forum/messageview.cfm? forumid=60&catid=587&threadid=1271034&enterthread=y
