Intercepting, Resuming Overridden Methods

[Gavin Kistner]

Is there a clean, good, easy way to do the following:

class Human; end
class Male < Human
def laugh
puts "Yo ho ho"
end
end
class Female < Human
def laugh
puts "Tee hee"
end
end

module Yokel
#...special code here...
end

class Human
include Yokel
end

m = Male.new
m.laugh
#=> "Slapping my knee"
#=> "Yo ho ho"
#=> "Snorting"


f = Female.new
f.laugh
#=> "Slapping my knee"
#=> "Tee hee"
#=> "Snorting"

 

[Robert Klemme]

Is there a clean, good, easy way to do the following:

class Human; end
class Male < Human
def laugh
puts "Yo ho ho"
end
end
class Female < Human
def laugh
puts "Tee hee"
end
end

module Yokel
#...special code here...
end

class Human
include Yokel
end

m = Male.new
m.laugh
#=> "Slapping my knee"
#=> "Yo ho ho"
#=> "Snorting"


f = Female.new
f.laugh
#=> "Slapping my knee"
#=> "Tee hee"
#=> "Snorting"

I once hacked something together which might help you. It's here
http://www.rubygarden.org/ruby?MethodHooks

And there have been lengthy discussions about the issue quite some time
ago. Guess you'll find them if you search for "method hooks".

Kind regards

robert

 

[daz]

Is there a clean, good, easy way to do the following:

I suspect the entry below will fail in at least one
of those subjective categories

class Human; end
class Male < Human
def laugh
puts "Yo ho ho"
end
end
class Female < Human
def laugh
puts "Tee hee"
end
end

module Yokel
def initialize
@meth = methodlaugh)
self.class.class_eval do
define_methodlaugh) do
puts "Slapping my knee"
@meth.call
puts "Snorting"
end
end
end
end

class Human
include Yokel
end

m = Male.new
m.laugh
#=> "Slapping my knee"
#=> "Yo ho ho"
#=> "Snorting"


f = Female.new
f.laugh
#=> "Slapping my knee"
#=> "Tee hee"
#=> "Snorting"

daz

 

[daz]

module Yokel
def initialize
@meth = methodlaugh)
self.class.class_eval do
define_methodlaugh) do
puts "Slapping my knee"
@meth.call
puts "Snorting"
end
end
end
end

Shorter (as long as __send__ handles private method calls) ...

module Yokel
def initialize
@meth = methodlaugh)
self.class.__send__define_method, :laugh) do
puts "Slapping my knee"
@meth.call
puts "Snorting"
end
end
end


daz