Murat Dzhulkuttiev dzhulk

A Guide to Rust Syntax

A very brief guide to Rust syntax. It assumes you are already familiar with programming concepts.

This was written in 2014. It is not a good reference for Rust today, though the content is still correct.

cheats.rs looks like a good alternative.

Assert macro

Here's how to install PostgreSQL and have it run automatically at startup, on an Ubuntu 10.04 virtual machine using Vagrant. This took me a while to figure out:

Add the default lucid32 base box to your vagrant, if you haven't already:

host> vagrant box add lucid32 http://files.vagrantup.com/lucid32.box

Now make a new lucid32 virtual machine and install postgresql on it:

	# Basic key operators to query the JSON objects :

	# #> : Get the JSON object at that path (if you need to do something fancy)
	# -> : Get the JSON object at that path (if you don't)
	# ->> : Get the JSON object at that path as text
	# {obj, n} : Get the nth item in that object

	# https://www.postgresql.org/docs/9.4/functions-json.html#FUNCTIONS-JSONB-OP-TABLE
	# Date
	# date before today

	sasha:rubinius brian$ rbx compile -A -e "
	class Foo
	include Module.new {
	def this_works
	end
	}

	include Module.new do
	def this_doesnt_work
	end

	require 'minitest/autorun'

	###
	# Test to demonstrate TCO in Ruby. Tested in 1.9.2+
	class TestTCO < MiniTest::Unit::TestCase
	code = <<-eocode
	class Facts
	def fact_helper(n, res)
	if n == 1
	res

	#!/usr/bin/env sh

	##
	# This is script with usefull tips taken from:
	# https://github.com/mathiasbynens/dotfiles/blob/master/.osx
	#
	# install it:
	# curl -sL https://raw.github.com/gist/2108403/hack.sh \| sh
	#