DougEverly

require "file_utils"

ROOT_PATH = Path.home / Path.new("Documents/Layout")

class Layout
  getter parentId : Int32?
  getter container : Bool
  property children : Array(Layout)

  def initialize(@id : Int32, @parentId : Int32?, @name : String, @type : String, @container : Bool)

DougEverly

require 'pp'

def f(a, b, *args, foo: "foo", required:, times: 2, **kwargs)
  puts a, b
  pp args
  puts foo
  puts times
  pp kwargs
  puts required
end

DougEverly

require "xml"
puts "Hello"

if file = ARGV.shift?
	xml = File.read(file)
	root = XML.parse(xml)

	if found_nodes = root.xpath("//div[@id='types-list']").as(XML::NodeSet)
		found_nodes.each do |found_node|
			puts found_node.attributes

DougEverly

enum Control
    Done
end

class Worker(T)
    def initialize
        @channel = Channel(T|Control).new(10)
        @done = Channel(Control).new

DougEverly

struct Int32
    def to(t : Int32.class)
    self
  end
  
  def to(t : Int64.class)
    self.to_i64
  end

  def to(t : String.class)

DougEverly

struct Int32
    def to(t : Int32.class)
    self
  end
  
  def to(t : Int64.class)
    self.to_i64
  end

  def to(t : String.class)

DougEverly

struct Int32
  def to(t : Int64.class)
    self.to_i64
  end
end


a = 13_i32
b = a.to(Int64)

DougEverly

def inner_scope(*args)
  return yield(*args)
end

def run : Int32
  # must declare i here to use in this scope
  i = inner_scope(3, 2) { |args|
    x, y = args
    i = x + y
  }

DougEverly

def foo
  yield
end

def run : Int32
  # must declare i here to use in this scope
  i = nil
  foo {
    i = 2
  }

DougEverly

ch = Channel(Nil).new
alias TH = Thread(Nil, Nil)
threads = Array(TH).new
threads <<  TH.new do
  6.times do
    sleep 1
    puts 1
  end
  ch.send(nil)
  nil