derive(Error) for struct and enum error types
> have you ever actually done that? I have, its not easy.
Yes. I do it frequently. "#[derive(Error, Debug)]": https://github.com/dtolnay/thiserror#example
Much easier than implementing the error interface in go.
Rust is powerful enough to allow macros to remove annoying boiler-plate, and so most people using rust will grab one of the error-handling crates that are de-facto standard and remove the pain you're talking about.
In go, it's not really possible to do this because the language doesn't provide such macros (i.e. the old third-party github.com/pkg/errors wanted you to implement 'Cause', but couldn't provide sugar like 'this-error' does for it because go is simply less powerful).
Sweet! I've been using it for the same. Example game project (did it for a game jam): https://github.com/nikki93/raylib-5k -- in this case the Go gets transpiled to C++ and runs as WebAssembly too. Readme includes a link to play the game in the browser. game.gx.go and behaviors.gx.go kind of show the ECS style.
Less time debugging, more time building. Scout APM allows you to find and fix performance issues with no hassle. Now with error monitoring and external services monitoring, Scout is a developer's best friend when it comes to application development.
Gin is a HTTP web framework written in Go (Golang). It features a Martini-like API with much better performance -- up to 40 times faster. If you need smashing performance, get yourself some Gin.
USB armory - open source flash-drive-sized computer
Go Project Design Documents
Not to detract from your general point, but I believe that this specific situation was addresses in Go 1.18's GC pacer rework: https://github.com/golang/proposal/blob/master/design/44167-....
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