qxjit

data Creep = SomeCreep
data Scope a = SomeScope a
data Scone a = AScone a

data Taste a =
    Disgusting
  | Yucky
  | Edible
  | Yummy
  | Delicious

qxjit

type A =
  | A of int
  | B of string
  
> List.choose (|A|_|) [ A 3; B "foo"];;

  List.choose (|A|_|) [ A 3; B "foo"];;
  -------------^^^^^

/vagrant/stdin(6,14): error FS0039: The value or constructor '|A|_|' is not defined  

qxjit

Excepting deserializing game: System.ArgumentNullException: Argument cannot be null.
Parameter name: array
  at Microsoft.FSharp.Collections.ArrayModule.Fold[EntityId,SetTree`1] (Microsoft.FSharp.Core.FSharpFunc`2 folder, Microsoft.FSharp.Collections.SetTree`1 state, CoinDB.EntityId[] array) [0x00000] in <filename unknown>:0 
  at Microsoft.FSharp.Collections.SetTreeModule.ofArray[EntityId] (IComparer`1 comparer, CoinDB.EntityId[] l) [0x00000] in <filename unknown>:0 
  at Microsoft.FSharp.Collections.FSharpSet`1[CoinDB.EntityId].OnDeserialized (StreamingContext context) [0x00000] in <filename unknown>:0 
  at System.Runtime.Serialization.SerializationCallbacks.Invoke (System.Collections.ArrayList list, System.Object target, StreamingContext context) [0x00000] in <filename unknown>:0 
  at System.Runtime.Serialization.SerializationCallbacks.RaiseOnDeserialized (System.Object target, StreamingContext contex) [0x00000] in <filename unknown>:0 
  at System.Runtime.Serialization.ObjectManager.RaiseOnDeserializedE

qxjit

class Array
  alias_method :>>, :delete
end

a = []

a << 1
a << 2
a << 3

qxjit

def foo(nums)
  h = Hash.new([])
  nums.each { |n| h[n] << n }
  puts h.inspect
  puts h['foo']
end

#YETANOTHERREASONMUTABLESTATEISTERRIBLE

qxjit

# ruby -v
# ruby 1.9.2p180 (2011-02-18 revision 30909) [x86_64-darwin10.8.0]
#
# note that you shouldn't use class variables anyhow...

class Foo
  @@in_foo = 2

  def self.in_foo; @@in_foo; end
end

qxjit

def sanitize(w,s)s.tr('/*-._\\','').sub(/#{w}/i,'*'*w.size)end

qxjit

def reverse(a) a.reverse; end

qxjit

# This program prints out:
# 
# Reversed: god
# God
# 
# I originally found it in the documentation 
# of BasicObject#tap in "Programming Ruby 1.9" by Dave Thomas
#

puts "dog"