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require "benchmark"
module Wrapper
def self.extended(klass)
klass.class_eval do
@@methods = {}
def self.methods
@@methods
end
def self.set_method k, v
@@methods[k] = v
end
end
end
def method_added name
return if methods.include?(name)
puts "#{name} added"
set_method(name, instance_method(name))
class_eval %{
def #{name}(*args)
self.class.methods[#{name.inspect}].bind(self).call(*args)
end
}, __FILE__, __LINE__ + 1
end
end
class NotWrapped
def add a, b
a + b
end
end
class Wrapped
extend ::Wrapper
def add a, b
a + b
end
end
w = Wrapped.new
nw = NotWrapped.new
# p w.add(1, 4)
# exit
# 30 is the width of the output column
Benchmark.bm 30 do |x|
x.report "wrapped" do
100_000.times do |_|
w.add(rand(1000), rand(1000))
end
end
x.report "not wrapped" do
100_000.times do |_|
nw.add(rand(1000), rand(1000))
end
end
end
|
