Zig comptime style macros would enable a huge number of features that are impossible in typescript

[factoidforrest]

Allowing the developer to tag comptime code that runs during compilation would open up a huge host of features not possible in typescript, particularly runtime type reflection. Zig has a particularly nice implementation of this which allows the developer to treat types as values at compile time.

It could totally eliminate the massive assortment of clunky code generators that have sprung up around typescript to provide type information and typed automatic functions from things like graphql files.

Give me a function that can output javascript at run time and that would be an absolutely killer feature that will win hearts and minds.
bun is working on something similar at the moment, and using jsx tags to do it. Interesting stuff.