pragdave

defmodule FibSolver do

  def fib(scheduler) do
    scheduler <- { :ready, self }
    receive do
      { :fib, n, client } ->
        client <- { :answer, n, fib_calc(n), self }
        fib(scheduler)
      {:shutdown} ->
        exit(0)

pragdave

defmodule Issues.GithubIssues do

  alias HTTPotion.Response

  def fetch(user, project) do
    HTTPotion.start
    case HTTPotion.get(issues_url(user, project)) do

      Response[body: body, status_code: status, headers: headers ] ->
        IO.puts inspect status

pragdave

defrecord Person, name: "", age: 0

dave = Person.new name: "Dave", age: 27

case dave do

Person[age: age] = record ->   #<< ** (RuntimeError) expected module Person to be loaded and defined
  ...

end

pragdave

defmodule Mix.Tasks.Doctest do
  use Mix.Task

  @shortdoc "Run the doctests for one or more files"

  # Just for testing....
  defmodule Wombat do
    @moduledoc """
        iex> 1
        1

pragdave

require 'fiddle'

include Fiddle
user32  = DL.dlopen("user32.dll")
msgbox  = Fiddle::Function.new(user32['MessageBoxA'],
                               [TYPE_LONG, TYPE_VOIDP, TYPE_VOIDP, TYPE_INT],
                               TYPE_INT)
MB_OKCANCEL = 1
msgbox.call(0, "OK?", "Please Confirm", MB_OKCANCEL)

pragdave

defmodule Anagram do

  ####
	# given a word, return a list of anagrams

	def anagrams_of(word) do
	  Keyword.get(dictionary, signature(word), [])
	end

pragdave

module SystemHook
  private
  def system(*args)
    super.tap do |result|
      puts "system(#{args.join(', ')}) returned #{result.inspect}"
    end
  end
end

class Object

pragdave

def test
  "just to see"
end

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module MigrationHelpers
  
  def fk(from_table, from_column, to_table=from_column.to_s.sub(/_id$/, 's'))
    constraint_name = "fk_#{from_table}_#{from_column}"

    execute %{alter table #{from_table}
              add constraint #{constraint_name}
              foreign key (#{from_column})
              references #{to_table}(id)}
  end

pragdave

dave[~/Play 7:58:42] gem update rails
Updating installed gems
Updating coffee-rails
Fetching: activesupport-3.2.0.rc2.gem (100%)
Fetching: activemodel-3.2.0.rc2.gem (100%)
Fetching: rack-1.4.0.gem (100%)
Fetching: journey-1.0.0.rc4.gem (100%)
Fetching: sprockets-2.1.2.gem (100%)
Fetching: actionpack-3.2.0.rc2.gem (100%)
ERROR:  Error installing coffee-rails: