Alex, then I have several more questions regarding the framework and compiler integration. Previously, no one cared to separate these two things, which resulted in that certain features of MXML weren't available to non-framework code. For instance, UIDUtils would make dependency to IUIComponent and through it to the rest of the framework. The code concerning UIDUtils would be added by the compiler alone, with no regard to the availability of this class and it's dependencies, and was impossible to prevent.
Another such thing - the compilation of FXG - how Falcon will relate to that? I am convinced that basing FXG on a Spark container made the feature useless, or reduced it's usefulness to a degree it wasn't worth the effort. Yet another thing - regardless of availability and _actual use_ the former code generator would put a lot of imports into generated files - this required you to have dummy files and, sometimes, entire folders to only make the compiler happy. Another thing, FlexInit - it has a "hand unrolled" loop (i.e. it repeated same code over an over again) - regardless of me reporting the issue, nobody cared to fix it, telling it's not a bug... how much better, if at all the code generation is going to be? Will there be any way to affect it from outside? Something that would be portable? (would not require you to build the compiler from sources). Generated code for resource bundles was redundant, for example, it would go like this: package ... { class bundle@name { function getBundle():Object { return { "key" : "value" }; } } } instead of doing it at least like this: package ... { var bundle@name = { "key" : "value" }; } To tell you the truth, there was a lot of such or similar code - I would go on and assume that whoever wrote that had minimal understanding of how AS3 works, and probably came from Java background... the worse thing about it was that it was not possible to alter this behavior in a portable way, that is in a way that would not require you to recompile the compiler. I am seriously worried about the new compiler when you say that things like MXML are going to be built-in. Having long history of Adobe providing low quality AS3 code, I would not like any code generation to be built into compiler, or, at least, not in the way it cannot be _entirely_ altered. I provided the example with locales because that was something quite recent that I simply gave up on Flex compiler doing it right and did that myself. I was lucky I only needed strings, no images or sounds. But if I had to do that for other kinds of assets too, that would add a lot of work, and that just wouldn't justify my rewrite, and I'd had to use whatever there is in Flex, regardless of it's quality.