Finally – An elegant solutions to generics in Go!
Finally – An elegant solutions to generics in Go!
So hanging out at GothamGo this year has been inspirational! I have been able to rub elbows with the best of the best Go engineers in the world.
Last night I was introduced to what I think is..
..finally the solution to generics in Go!
The G Package
So there is an Apache 2 open source licensed package that can be found on GitHub here. ‘
The package is clean, and elegant. So let’s take the package for a spin!
First things first, we need to install the G package. Luckily it using the Go idiomatic installation method go get.
go get github.com/StabbyCutyou/generics |
Now we can import the package into our Go program.
import . "github.com/StabbyCutyou/generics" |
The Implementation
We can now take ugly and non idiomatic (but flexible) Go code such as the following and implement a much more elegant solution for Generics.
func UglyUnIdiomaticQuoteGenericApproachUnquote(poorexcuse ...interface{}) []interface{} |
with the G package now becomes the following
func Excellence(things ...G) []G |
Backwards Compatibility
From the G package repository we can read a glorious compatibility statement:
G meets the standard of golang by matching its stance on backwards compatibility. Until a 2.0 release of generics, which may never happen, G will always be 100% Backwards compatible with it’s initial 1.0 release.
Behind The Scenes
The source code for G is simple and elegant, and I encourage all users to take a peak at what is going on behind the scenes. In my eyes it is a clean solution to Generics in Go, and I couldn’t be more pleased with the project.
I hope this helps.
Cheers.
Axel Wagner
October 5, 2017 12:51:pmReally, it should use type aliases. Otherwise it’d clash when you try to use e.g. `func(int)` as a `func(G)`.