TypeScript has completely different goals. It will always just be a semantic checker on top of JS and nothing more. This has been mentioned more than once:
The main advantage of using Binaryen directly bypassing LLVM is firstly very fast codegen and optimization (Binaryen architecture perfectly utilizes multithreading as opposed to LLVM). In addition, clean and fast debug builds are not clogged with SSA and mSSA noise. That makes debug/release performance not more than 2-4x slower, unlike LLVM where this ratio is 20x-40x as already mentioned. The Binaryen optimizer is improving all the time. It is already better in many places than the same Go's codegen
> It isn't designed for or suitable for large projects.
Why? The compiler itself is written in AssemblyScript and is capable of bootstrapping. The AS code base is quite large. In addition, there are other quite large projects. For example: https://github.com/acutmore/type-off. It's port of "sucrase" project (which functionally equivalent to esbuild or swc)
The main problem of WASI in my opinion is that it's based on a standard which is 30 years old. And yes, the idea was cool, to let you run even C without having to rewrite libc. But the reality is that we can't do this now and it's still a big question whether we can in the near future. Besides, C is probably the only one that needs such a low level api, but everyone has to suffer because of it, essentially reinventing libc based on WASI with their own language runtime on top of it. This is simply a waste of binary space.
Also it lead to fragmentation into the WebAseembly ecosystem. A compiled program in wasm32-wasi cannot run in a browser, only in wasmtime, wasmer or node.js. WASI-polyfill.js is very limited, adds a bunch of kilobytes of glue code and is still not even officially introduced.
The article is relatively old. But I have the most complaints about the performance measurements. The WebAssembly should be tested in a way that eliminates the interop time, which is very expensive. That's why sorting and simple multiplication will always be slower if tested outside WebAssembly. Sorting in AssemblyScript is actually faster than in Rust or JavaScript:
https://twitter.com/MaxGraey/status/1414867216676368384
> Iraq, Afghanistan, Libya, Syria, all within the very recent history, plus countless more US-backed color revolutions - including the one in your very own country, which realistically is the very reason for the current state of affairs in there.
Oh God! You and your conspiracy theories are annoying. If the U.S. is so powerful, why hasn't it organized a color revolution in Russia or at least in Serbia, maybe in pro-Russian Hungary? I was at both revolutions in Ukraine and I know why they arose, they were supported by the Ukrainian people, self-organized. And it's been like that all through our history. You don't know shit about the political situation in Ukraine and its history, but you think you have it all figured out. I'm sure you don't even know your own history. So don't talk bullshit!
> And there's been talk of exposing the JS GC to wasm for a few years. Hopefully when that stuff lands, it'll get easier to marshal objects across the gap.
https://news.ycombinator.com/item?id=32564105