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It looks like IoC frameworks do exist for Go (https://github.com/alibaba/IOC-golang for example). I'm sure the True Gosman would not use this but it exists nonetheless. It looks like there are some heretics in the community - how shall we exile these vile peoples?
> context.Background() is typically only used when one doesn’t care about the result. If you did care about the result, you should be passing the parent context to preserve the circuit breaker timeout in case the operation takes too long.
Not necessarily. You would use context.Background in a test situation. It's also commonly used for short-lived applications like a CLI invocation. You can see kubectl uses context.Background quite a lot: https://github.com/kubernetes/kubectl/search?q=context.backg...
> I think the level of pain you experience from mutable references in Rust depends on if you’re coming from an OOP or FP background. I have a FP background and so the patterns I use to build code already greatly restrict mutation. You can usually change code that updates data immutably (creating a new copy of it) with mutable code in rust because the control flow of your program already involves passing that new version back to the caller which also satisfies the borrow checker in most situations.
There has to be a better solution to needlessly copying data.
I don't think I have ever seen a benchmark that concludes this. I think the best conclusion is that Go, C# and Java perform roughly the same - which makes sense since they are basically all the same thing. As you say, you could write a Go version which would be equally fast.
Here is another showing Go under-performing both Java and C# by a bit. Benchmarks may not be perfect but better than conjecture.
https://www.techempower.com/benchmarks/#section=data-r21