Trying Out Generics in Go

• gostdx

  1 1 0.0 Go

  Extended library functions using generics in Go.

I too was playing around with Go generics. I wrote some naive concurrent filter and fold (reduce) functions for slices and maps here https://github.com/unix1/gostdx if anyone is curious how those would feel.

• errcheck

  9 2,281 6.3 Go

  errcheck checks that you checked errors.

I'd be really happy with that! Building the functionality of errcheck[1] and ineffassign[2] into the compiler — or at the very least, into govet — would go a long way to allay my worries with Go.

I think the reason they don't do this is that it's a slight (albeit a very tiny one) against Go's philosophy of errors being values, just like any other. While the `error` type is standard and used throughout Go source code, it still just has a simple three-line definition[3] and is not treated as a special case anywhere else; there is nothing stopping you from returning your own error type if you wish. A third-party linter could simply check for the `error` type specifically, but the first-party tools should not, and there's nothing like Rust's `#[must_use]` attribute that could be used instead. I respect Go's philosophy, but I feel like pragmatism must win in this case.

[1]: https://github.com/kisielk/errcheck

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• ineffassign

  2 385 4.8 Go

  Detect ineffectual assignments in Go code.

• fut

  2 0 0.0 Go

I feel the similar way, though I wouldn't be so brave to say I didn't ever use interface{}. I think we all work around slices and maps being the only generic containers and don't know we do. I think everyone will find that while they didn't need generics, they will help them when using utility libraries. Java 1.4 people thought the same.

I expect a well-curated libraries to come about that will really simplify some otherwise difficult problems for people (e.g. task/object pooling). I'm even toying with a futures impl at https://github.com/cretz/fut, but I wouldn't use it in place of channels in most cases.

• go

  2,068 119,564 10.0 Go

  The Go programming language

  

There's a proposal for the Go 2 draft that addresses this:

https://github.com/golang/go/issues/20803

https://go.googlesource.com/proposal/+/master/design/go2draf...

• aboriginal

  6 167 10.0 Go

  Aboriginal Generics: the future is here!

• reason

  44 10,054 5.8 OCaml

  Simple, fast & type safe code that leverages the JavaScript & OCaml ecosystems

  

I found this closed-mindedness hard to understand -- I don't spend very much conscious thought on the syntax when programming at all -- but for people like you facebook made Reason ML https://reasonml.github.io/

Someone should port OCaml to the Go runtime with a good high-level FFI. It could really give the community a boost.

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