matteosister

defmodule PipeFunctionComposition do
  require Integer

  def even(n), do: Integer.is_even(n)
  def negate(n), do: not n
  def multiply_by(n, factor), do: n * factor
  
  @doc """
  true if the passed number is not even
  """

matteosister

defmodule InfixFC do

  @doc """
  define an infix operator <|> to compose functions
  """
  defmacro left <|> right do
    quote bind_quoted: [left: left, right: right] do
      fn (v) -> left.(right.(v)) end
    end
  end

matteosister

defmodule SimpleFC do
  require Integer

  def even(n), do: Integer.is_even(n)
  def negate(n), do: not n

  def compose(func1, func2) do
    fn (n) ->
      func2.(func1.(n))
    end

matteosister

even :: Int -> Bool
not :: Bool -> Bool

isnoteven :: Int -> Bool
isnoteven = not . even

even(10) -- True
not(True) -- False
isnoteven(9) -- True

matteosister

server {
    server_name www.hostname.com;
    root /var/www/hostname/current/web;
    listen 81 default_server;

    error_log /var/log/nginx/error.log;
    access_log /var/log/nginx/access.log;

    rewrite ^/app\.php/?(.*)$ /$1 permanent;

matteosister

<?php

namespace Vendor\Repository;

use PhpOption\Option;
use Doctrine\DBAL\LockMode;

trait OptionRepositoryTrait
{
    public function find($id, $lockMode = LockMode::NONE, $lockVersion = null)