Could one in theory make their own flash compiler?

[ghost]

I know there is a discussions thread about swftools, but that's more for extracting and manipulating a swf file. I also know there's the OCaml based MTASC (AS2 compiler), but I haven't really tested it much. But since MTASC exists, would that mean in theory I could make my own compiler for AS2 and maybe AS3 to far more optimize it as I see fit? My biggest pitfall I think right now, is having ruffle understand the optimizations I make. Any suggestions on what pitfalls I would run into? I know it's possible, it won't be easy, but I like a challenge.

[torokati44]

Yes. Haxe has a Flash target (https://haxe.org/documentation/introduction/compiler-targets.html), and
ffdec (https://github.com/jindrapetrik/jpexs-decompiler) also has some recompilation support (I'm not sure if it's AS1/2 and/or AS3), and there's also https://github.com/hydroper/as3parser, but it didn't get far from what I can see...