Comments on: Swf Class Explorer for AS3

By: Jeff

Jeff — Wed, 01 Sep 2010 20:24:20 +0000

Is it possible to extend this tool to determine from the SWF bytecode what classes a SWF is dependent upon which it does not define?

That is, if I compile a SWF which references one or more SWC files without static linking, I have a SWF that is dependent on other SWF/SWC files being loaded first.

So the question is, can I determine those dependencies on any given SWF file at runtime without having to resort to the link report? AFAIK, there’s no way to determine this without the link report.

By: Flassari

Flassari — Thu, 06 May 2010 22:06:12 +0000

Lol, well, glad it’s fixed =)

By: pTymN

pTymN — Thu, 06 May 2010 22:01:26 +0000

That was retarted. Restarting the Flash IDE fixed the issue.

By: pTymN

pTymN — Thu, 06 May 2010 12:51:45 +0000

I recreated the FLA, and the best that I can tell is that somehow the png that is used is causing the problem. I’ll try re-saving the png from gimp with different settings and seeing if I can find a combination of FLA/PNG settings that allows that swf to load. The very same project is loading 3 other nearly identical swfs without any problems.

By: Flassari

Flassari — Thu, 06 May 2010 10:38:23 +0000

@pTymN: I tried using Flash Develop's swf class browser to see what classes are in the swf, but even Flash Develop fails. The swf might be corrupted. See this picture: Can you use any other libraries like SwfOp and see if they succeed in getting the classes of your swf?

By: Flassari

Flassari — Thu, 06 May 2010 10:13:14 +0000

Odd, I’ll look into it

By: pTymN

pTymN — Wed, 05 May 2010 16:53:29 +0000

Hey, the code breaks when I try to load this swf: http://tim.kerchmar.com/level2-background3.swf

I tried publishing the swf as Flash Player 9 compiled and Flash Player 10 compiled, and neither option changed the error from: Error: Record header length too big.

with these values:

br.bytesAvailable = 50168
br.endian = “littleEndian”
br.length = 51732
br.objectEncoding = 3
br.position = 1564
tagCl = 50431
tagCode = 787
tagLength = 1073408

By: Weston

Weston — Mon, 09 Nov 2009 20:32:17 +0000

Thanks very much!!! BTW - a quick question - what does trait.baseName tell us?

The direct parent of the class? ie “extends”?

Or the lowest level object?

Thanks again! Great product!!

By: Flassari

Flassari — Mon, 09 Nov 2009 17:14:25 +0000

Ok, added the swc to the bottom of the post.

By: Weston

Weston — Mon, 09 Nov 2009 15:23:55 +0000

I know how to build, but at my company if we build third party swcs ourselves, we have to go through legal, (yes, even if you’re using the MIT license). Was trying to avoid the red tape hassel!! :)