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Not involved, but there's a faq in their repo, and this answers your question, perhaps, a bit: https://github.com/microsoft/typescript-go/discussions/411
Thanks, but it really doesn't clarify why a team with roots on the .NET ecosystem decided C#/Native AOT isn't fit for purpose.
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It's not just a pity, it's very surprising. In my eyes Go is a direct competitor of C#. Whenever you pick Go for a project, C# should have been a serious consideration. Hejlsberg designed C# and that a team that he's an authority figure in would opt to use Go, a language which frankly I would not consider to build a compiler in is astounding. Not saying that in a judgemental way, I'm just genuinely surprised. What do…
C# needs an interpreter (.NET runtime) while Go compiles down to a binary. And the toolchain allows you to compile for other architectures fairly easily. So that could be a fundamental reason why.
Hi folks, Daniel Rosenwasser from the TypeScript team here. We're obviously very excited to announce this! RyanCavanaugh (our dev lead) and I are around to answer any quick questions you might have. You can also tune in to the Discord AMA mentioned in the blog this upcoming Thursday.
Well-optimized JavaScript can get to within about 1.5x the performance of C++ - something we have experience with having developed a full game engine in JavaScript [1]. Why is the TypeScript team moving to an entirely different technology instead of working on optimizing the existing TS/JS codebase? [1] https://www.construct.net/en
JS is 10x-100x slower than native languages (C++, Go, Rust, etc) if you write the code normally (i.e. don't go down the road of uglifying your JS code to the point where it's dramatically less pleasant to work with than the C++ code you're comparing to).
Fast dev tools are awesome and I am glad the TS team is thinking deeply about dev experience, as always! One trade off is if the code for TS is no longer written in TS, that means the core team won’t be dogfooding TS day in and day out anymore, which might hurt devx in the long run. This is one of the failure modes that hurt Flow (written in OCaml), IMO. Curious how the team is thinking about this.
Ultimately the solution has to be breaking the browser monopoly on JS, via performance parity of WASM or some other route, so that developers can dogfood in performant languages instead across all their tooling, front end, and back end.
It’s not obvious from the text, but the compiler was previously written in TypeScript (which was kind of a strange choice for the language to write a compiler in).
Bootstraping compilers is a common activity and TypeScript is a nice language.
Even though I have my considerations regarding Go, I love that they picked Go instead of the fashion to go Rust that seems to be the norm now. A compiled managed language is much better approach for userspace applications. Pity that they didn't go with AOT compiled .NET, though.
It's not just a pity, it's very surprising. In my eyes Go is a direct competitor of C#. Whenever you pick Go for a project, C# should have been a serious consideration. Hejlsberg designed C# and that a team that he's an authority figure in would opt to use Go, a language which frankly I would not consider to build a compiler in is astounding. Not saying that in a judgemental way, I'm just genuinely surprised. What do…
- C# is bytecode-first, Go targets native code. While C# does have AOT capabilities nowadays this is not as mature as Go's and not all platforms support it. Go also has somewhat better control over data layout. They wanted to get as low-level as possible while still having garbage collection.
- This is meant to be something of a 1:1 port rather than a rewrite, and the old code uses plain functions and data structures without an OOP style. This suits Go well while a C# port would have required more restructuring.
Earlier quoted context omitted.
It's not just a pity, it's very surprising. In my eyes Go is a direct competitor of C#. Whenever you pick Go for a project, C# should have been a serious consideration. Hejlsberg designed C# and that a team that he's an authority figure in would opt to use Go, a language which frankly I would not consider to build a compiler in is astounding. Not saying that in a judgemental way, I'm just genuinely surprised. What do…
C# needs an interpreter (.NET runtime) while Go compiles down to a binary. And the toolchain allows you to compile for other architectures fairly easily. So that could be a fundamental reason why.