Scott Stensland scottstensland

There are three easy to make mistakes in go. I present them here in the way they are often found in the wild, not in the way that is easiest to understand.

All three of these mistakes have been made in Kubernetes code, getting past code review at least once each that I know of.

Loop variables are scoped outside the loop.

What do these lines do? Make predictions and then scroll down.

func print(pi *int) { fmt.Println(*pi) }

NOTE: the content is out-of-date. All development is moved to the https://github.com/yurydelendik/wasmception

Using WebAssembly in LLVM

Compiling

# locations, e.g.
export WORKDIR=~/llvmwasm; mkdir -p $WORKDIR
export INSTALLDIR=$WORKDIR


	#include <stdio.h>
	#include <stdlib.h>

	struct closure {
	void (* call)(struct closure *);

	int x;
	};

	/*
	* Inspired by: http://stackoverflow.com/questions/4360060/video-streaming-with-html-5-via-node-js
	*/

	var http = require('http'),
	fs = require('fs'),
	util = require('util');

	http.createServer(function (req, res) {
	var path = 'video.mp4';

	<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
	<html>
	<head>
	<meta http-equiv="content-type"
	content="text/html; charset=ISO-8859-1">
	<title>Fourier Transform in JavaScript</title>
	<meta name="keywords"
	content="graph, graphs, graphing, JavaScript, DHTML, Clymer, function, functions, Fourier, Fourier transform, FFT">
	<style type="text/css" media="screen"></style>
	</head>

	/* Benchmark implementing the board logic for the game of go and
	* exercising it by playing random games. Derived from
	* http://www.lysator.liu.se/~gunnar/gtp/brown-1.0.tar.gz
	*/
	#include <stdio.h>
	#include <stdlib.h>
	#include <string.h>

	#define MAX_BOARD 23

	package main

	import (
	"os"
	"log"
	"net"
	"strconv"
	"strings"
	)

	# Credit http://stackoverflow.com/a/2514279
	for branch in `git branch -r \| grep -v HEAD`;do echo -e `git show --format="%ci %cr" $branch \| head -n 1` \\t$branch; done \| sort -r

	server {
	listen [::]:80;
	listen 80;

	server_name app.example.com;

	return 301 https://$server_name$request_uri;
	}

	server {

	#! /bin/sh

	GOOS=linux go build -o $2 "$1"
	GOOS=linux go build -ldflags="-s -w" -o $2.-sw "$1"
	upx -f --brute -o $2.upx $2
	upx -f --brute -o $2.-sw.upx $2.-sw

	GOOS=linux gotip build -o $2.tip "$1"
	GOOS=linux gotip build -ldflags="-s -w" -o $2.tip.-sw "$1"
	upx -f --brute -o $2.tip.upx $2.tip