It is a little bit of a shame that it doesn't seem to be under active development anymore. For personal projects, it would be fun to be able to write up little DSLs
It seemed to undergo a major rewrite and then died.
I could also never really figure it out post-rewrite. Pre-rewrite, I had made some cool macros just out of intuition after reading some of its examples. Now, I can't get many of its own examples to compile in its live editor.
Too bad. It's about 1000x simpler than, say, implementing low-level Babel transformations.
I feel the pain. Things got a little bit easier with Babel Plugin Macros and Typescript (which forces you to build macros that adhere to a reasonable type system)
These "macros" take a different approach than Sweet.js: they're not syntax extensions, but rather code transformers that you import and use explicitly.
