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A comment on .NET 10 Preview 6 brings JIT improvements, one-shot tool execution. Parent comment

Re:.NET 10 Preview 6 brings JIT improvements, one-shot tool ... by adabyron on Wednesday July 30, 2025 @10:20PM (#44741743)
Anders Hejlsberg, a main architect on C# & TS, stated somewhere that they re-wrote the TS Compiler in Go because the syntax was the closest to how it was originally written and allowed re-writing to be easiest. He has a great write up of it somewhere on GitHub.

Microsoft is an insanely huge company. There teams seem to be able to use whatever works best for the project/team.

The old XKCD comic of org charts in big tech shows Microsoft as a bunch of people aiming guns at each other for a reason. They'll have 5 teams making 5 competing products sometimes. That's the culture I'm aware of. I'm not aware of the dogfooding culture you are suggesting.

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Re:.NET 10 Preview 6 brings JIT improvements, one-shot tool ... by pjmlp on Thursday July 31, 2025 @12:39AM (#44742356)
Yeah, and then at BUILD 2025 session, he ended up explaining how they had to rewrite all the data structures, due to the less capable type system from Go versus Typescript.

So the gain isn't as much as what is being sold.

Meanwhile Azure has no issues using AI based translation to port C++ projects into Rust, which they could have done in a similar way to port into C#.

Also, Go has a less capable tooling as C# for WebAssembly, due to Blazor efforts, the team has invested quite a lot into it.

It remains questionable what will they do for the in browser playgrounds and editors use cases.

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Re:.NET 10 Preview 6 brings JIT improvements, one-shot tool ... by reactordev on Thursday July 31, 2025 @07:57AM (#44744740)
Exactly. They chose Golang because they wanted to, not because of any technical limitation. Could have been C#, or Rust…
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Re:.NET 10 Preview 6 brings JIT improvements, one-shot tool ... by zeroc8 on Monday August 04, 2025 @02:48AM (#44782747)
They used Go because it was the best fit for the task. Anders explained the reasons very well.
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