Go Without Generics

Today I gave a talk on Generics in Go, or rather, about the kinds of hoops we need to jump through to do something in Go when we don’t have Generics. In my case it’s invoking arbitrary functions together in a pipeline, like one needs to do for Apache Beam.

This post is a placeholder for an article version of the talk, but for now, here are the relevant links.

GoWestConf link for talk: https://www.gowestconf.com/team/go-without-generics%2C-a-retrospective

Cur Draft Design (2020-09): https://go.googlesource.com/proposal/+/refs/heads/master/design/go2draft-type-parameters.md

The Next Step for Generics: https://blog.golang.org/generics-next-step

Go2Playground: https://go2goplay.golang.org/

Annotated Code for this talk: https://github.com/lostluck/experimental/tree/master/talks/retrospective

Type Parameter Wrappers Generic Go: https://go2goplay.golang.org/p/5W39ybOQooA

Code Generation in Apache Beam: https://github.com/apache/beam/blob/master/sdks/go/pkg/beam/core/util/reflectx/call.go https://github.com/apache/beam/blob/master/sdks/go/pkg/beam/util/starcgenx/starcgenx.go https://github.com/apache/beam/blob/master/sdks/go/pkg/beam/util/shimx/generate.go

Slides: https://docs.google.com/document/d/1-N-0QNXbTnbetbdT1Ljwjl1pm5D0YtEZvcqHnygnYqQ/edit Script: https://docs.google.com/presentation/d/1LreJX4MEpylZtpYxjlzWByU7wEPLv-Lii2Wo4rV_5vo/edit#slide=id.g9c729dc48f_0_127