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)

albulescu

package main

/**
 * @website http://albulescu.ro
 * @author Cosmin Albulescu <[email protected]>
 */

import (
	"bytes"
	"fmt"

ciaranarcher

// Create our own MyResponseWriter to wrap a standard http.ResponseWriter
// so we can store the status code.
type MyResponseWriter struct {
	status int 
	http.ResponseWriter
}

func NewMyResponseWriter(res http.ResponseWriter) *MyResponseWriter {
	// Default the status code to 200
	return &MyResponseWriter{200, res}

dweinstein

FROM ubuntu
MAINTAINER David Weinstein <[email protected]>

# install our dependencies and nodejs
RUN echo "deb http://archive.ubuntu.com/ubuntu precise main universe" > /etc/apt/sources.list
RUN apt-get update
RUN apt-get -y install python-software-properties git build-essential
RUN add-apt-repository -y ppa:chris-lea/node.js
RUN apt-get update
RUN apt-get -y install nodejs

ellemenno

#!/usr/bin/env ruby
# encoding: UTF-8


@dot_cycle = ['⣾','⣽','⣻','⢿','⡿','⣟','⣯','⣷']
#braille random: 0x2800 - 0x28ff

@z_arrow = ['←','↖','↑','↗','→','↘','↓','↙']
@z_b   = ['b','ᓂ','q','ᓄ']
@z_d   = ['d','ᓇ','p','ᓀ']

mogarick

//Please note I'm also using underscore each function for the iterations

//iCal -> jsCal
var icalEvents = ICal.parse(iCalStringData);
//jsCal->Component
var comp = new Component(icalEvents[1]);

//Get all VTIMEZONE iCalendar components
var vtimezones = comp.getAllSubcomponents("vtimezone");
//Add all timezones in iCalendar object to TimezonService

ukolka

<?php
namespace tests\unittests\custom;
/**
 * Whenever PHP HTTP stream is used you can
 * inject a mock stream resource into an object that
 * expect it.
 *
 * Usage example:
 *
 * ...

willurd

Each of these commands will run an ad hoc http static server in your current (or specified) directory, available at http://localhost:8000. Use this power wisely.

Discussion on reddit.

Python 2.x

$ python -m SimpleHTTPServer 8000