Xander Dunn xanderdunn

import scalaz.stream.async

val q = async.unboundedQueue[Int]
val src = q.dequeue

// Thread 1
q.enqueue(1) // ordinary side-effecting calls
q.enqueue(2)
...

Mindset

Moving from imperative programming to functional programming requires a fairly large shift in mindset. Moving away from your mutable variables and control flow loops to a streams-based system of handling side effects requires a similar shift in mindset.

A Task encapsulates side effects. You can do just about anything you want in a Task. A Process as a stream of a specific piece of data. Think of it as a list of that data. For example, if you have a counter in your application, a single Process would be used to represent that Int. Think of a Process as a function that holds state that waits to emit a value when it's asked to. A Process is a state machine that can be in one of three states: emitting values, awaiting for the result of some request, or halted. It represents all values that you expect to get from your function. Those values could be simple, like a list of Ints, or it could be far more complex, like asynchronously waiting for responses from a remote server.

	require 'sinatra'
	require 'json'

	set :bind, '0.0.0.0'

	post '/payload' do
	# push = JSON.parse(request.body.read)
	# puts "I got some JSON: #{push.inspect}"
	system 'git fetch --all --prune'
	system 'git push --mirror ssh://git@stash.osaro.net:7999/odin/core.git'

	Observable(
	subscriber => {
	new Thread(new Runnable() {
	def run() {
	val i = 0 // do real shit here instead
	subscriber.onNext(i)
	}
	if (!subscriber.isUnsubscribed) {
	subscriber.onCompleted()
	}

	(:root-dir "/local/dev/reinforcementLearning"
	:cache-dir "/local/dev/reinforcementLearning/build/ensime_cache"
	:name "reinforcementLearning"
	:scala-version "2.11.7"
	:subprojects ((:name "reinforcementLearning"
	:target "/local/dev/reinforcementLearning/build/classes/main"
	:test-target "/local/dev/reinforcementLearning/build/classes/test"
	:compile-deps ("/Users/admin/.gradle/caches/modules-2/files-2.1/org.scala-lang/scala-library/2.11.7/f75e7acabd57b213d6f61483240286c07213ec0e/scala-library-2.11.7.jar")
	:runtime-deps ("/Users/admin/.gradle/caches/modules-2/files-2.1/org.scala-lang/scala-library/2.11.7/f75e7acabd57b213d6f61483240286c07213ec0e/scala-library-2.11.7.jar")
	:test-deps ("/Users/admin/.gradle/caches/modules-2/files-2.1/org.scala-lang/scala-library/2.11.7/f75e7acabd57b213d6f61483240286c07213ec0e/scala-library-2.11.7.jar" "/Users/admin/.gradle/caches/modules-2/files-2.1/org.scalatest/scalatest_2.11/2.3.0-SNAP2/b02b4673e62375c30040316462c33fb069cdc76b/scalatest_2.11-2.3.0-SNAP2.jar" "/Users/admin/.gradle/

	name := "ticTacToe"
	version := "1.0"
	scalaVersion := "2.11.7"
	resolvers ++= Seq(
	// other resolvers here
	// if you want to use snapshot builds (currently 0.12-SNAPSHOT), use this.
	"Sonatype Snapshots" at "https://oss.sonatype.org/content/repositories/snapshots/",
	"Sonatype Releases" at "https://oss.sonatype.org/content/repositories/releases/"
	)
	resolvers += Classpaths.sbtPluginReleases

	Xander-Dunns-MacBook-Pro:gridworld admin$ cd ~/Desktop/
	Xander-Dunns-MacBook-Pro:Desktop admin$ git clone https://github.com/underscoreio/doodle.git
	Cloning into 'doodle'...
	remote: Counting objects: 1553, done.
	remote: Total 1553 (delta 0), reused 0 (delta 0), pack-reused 1553
	Receiving objects: 100% (1553/1553), 1.16 MiB \| 646.00 KiB/s, done.
	Resolving deltas: 100% (503/503), done.
	Checking connectivity... done.
	Xander-Dunns-MacBook-Pro:Desktop admin$ cd doodle/
	Xander-Dunns-MacBook-Pro:doodle admin$ sbt

	" TODO
	" - Figure out how to jump around .h/.m files with ctags
	" - Find some code dependency measurer: Find the GitHub repo of the guy who created a project for this.
	" - Create a command that will create a NAME.cpp, NAME.hpp, and TAME.test.cpp file all in the right place
	" - Figure out how to jump to the next line that has something marked in the gutter
	" - Figure out what conflicts with <leader>n in Python files
	" - Create a command that will display a symbol in the gutter for every line that was changed within the past x days. This would be super helpful for debugging.

	" TODO Later
	" - Set a sanitizer special case list so that it ignores any problems in the third party files: http://llvm.org/releases/3.6.0/tools/clang/docs/SanitizerSpecialCaseList.html

	#!/usr/bin/env python
	#
	# Copyright (C) 2014 Google Inc.
	#
	# This file is part of YouCompleteMe.
	#
	# YouCompleteMe is free software: you can redistribute it and/or modify
	# it under the terms of the GNU General Public License as published by
	# the Free Software Foundation, either version 3 of the License, or
	# (at your option) any later version.

	" TODO
	" - Figure out how to jump around .h/.m files with ctags
	" - How to jump to next item in quickfix list?
	" - How will I manage Coverity Scan submissions? Just do a git cherry-pick -n
	" or rebase squish whenever you want to submit the coverity_scan branch
	" - Get through the sample and buy the algorithms book
	" - Get Coverity Scan working once you meet the 85% code requirement

	" TODO Later
	" - Set a sanitizer special case list so that it ignores any problems in the