Michal Štrba faiface

Ideas on generics in Go

As we all know, Go 2 is on its way and despite the hesitations, it's clear that without generics, it would end up being a disappointment. And although we are still gathering real-life use-cases, or experience reports, there's nothing bad about starting to think about how generics in Go could look like. I've come up with a few ideas which I'd love to share. So, here we go!

What's already achievable?

Now, Go 1 has no generics, but has interfaces. Interfaces (sometime accompanied by reflection)

	package main

	import (
	"fmt"
	"math"
	"os"
	"time"

	"golang.org/x/image/colornames"

	package main

	import (
	"math"
	"os"
	"time"

	"github.com/faiface/beep"
	"github.com/faiface/beep/mp3"
	"github.com/faiface/beep/speaker"

	package main

	import (
	"os"
	"time"

	"github.com/faiface/beep"
	"github.com/faiface/beep/speaker"
	"github.com/faiface/beep/wav"
	)

	package main

	import (
	"os"
	"time"

	"github.com/faiface/beep"
	"github.com/faiface/beep/speaker"
	"github.com/faiface/beep/wav"
	)

	package main

	import (
	"fmt"
	"math"
	"os"
	"time"

	"github.com/faiface/beep"
	"github.com/faiface/beep/effects"