Spell: Pattern Dispatch

pattern_dispatch.rb

# =======================
# Spell: Pattern Dispatch
# =======================

# Select which methods to call based on their names.

$x = 0

class C
  def my_first_method
    $x += 1
  end

  def my_second_method
    $x += 2
  end
end

obj = C.new
obj.methods.each do |m|
  obj.send(m) if m.to_s =~ /^my_/
end

$x # => 3

# For more information: http://www.pragprog.com/titles/ppmetr/metaprogramming-ruby