andremedeiros

defmodule Fib do
  def fib(0), do: 0
  def fib(1), do: 1
  def fib(2), do: 1
  def fib(n), do: fib(n, 1, 1)

  defp fib(3, prev, cur), do: prev + cur
  defp fib(n, prev, cur), do: fib(n - 1, cur, prev + cur)
end

andremedeiros

Bundler Plugins

I’ve done a fair bit of research on several well known Ruby libraries and/or tools, such as:

• Capistrano
• Ruby on Rails
• Cocoapods
• Rubygems
• Sidekiq

andremedeiros

# Output for
# ST hash table
# Write operations
# 10,000 keys
# 100 runs

~/Source/sandbox/hashes2
❯ ./test st writes 10000
       Value   Percentile   TotalCount 1/(1-Percentile)

andremedeiros

require 'ostruct'
class Context < OpenStruct
  def fail(details)
    @_failure = true
    @_error   = details
  end

  def fail!(details)
    fail(details)
    throw :halt

andremedeiros

yes = -> { puts "Y"; true }
no  = -> { puts "N"; false }

arr = [no, no, no, yes, no, no]

a = arr.find { |x| x.call }
puts a

# `a` wants to be true, not an instance of Proc

andremedeiros

Baruco 2014 talks

Please see the Hackpad where we can all contribute!

andremedeiros

class ApplicationController < ActionController::Base
 
protected

  # Protected: Internally redirects and renders a request.
  #
  # Example: 
  #
  # def latest
  #   post = Post.last

andremedeiros

void
dz_cmyk_to_rgb(fz_context *ctx, fz_colorspace *cs, const float *cmyk, float *rgb) {
  static cmsHTRANSFORM transform = NULL;

  if(!transform) {
    cmsHPROFILE cmyk_profile, rgb_profile;
    size_t cmyk_size, rgb_size;

    const char *cmyk_data = find_embedded_file("cmyk.icc", &cmyk_size);

andremedeiros

// Copyright (c) Sergey Lyubka, 2013.
// All rights reserved.

// This program is used to embed arbitrary data into a C binary. It takes
// a list of files as an input, and produces a .c data file that contains
// contents of all these files as collection of char arrays.
// Usage:
//   1. Compile this file:
//      cc -o embed embed.c
//

andremedeiros

% Copyright (C) 2001-2012 Artifex Software, Inc.
% All Rights Reserved.
%
% This software is provided AS-IS with no warranty, either express or
% implied.
%
% This software is distributed under license and may not be copied,
% modified or distributed except as expressly authorized under the terms
% of the license contained in the file LICENSE in this distribution.
%