comp.lang.ruby

John Pritchard-williams

8/29/2008 7:14:00 PM

Jos,

Its a weird quirky feature I don't really understand - but managed to
put together this: I have to guess that Ncurses is defining a 'normal'
module, whereas I know (from my book!) that the Math library used
'Module#module_function'.

(My program but based on "The Ruby Programming Language : ISBN-10:
0-596-51617-7 , O'Reilly, Page 248 onwards (esp: page 251 "Includable
Namespace Modules").

Cheers

John

module Mymodule
Module#module_function
def method1
puts "method1 called"
end
end

module MyOtherModule
def MyOtherModule.method2
puts "method2 called"
end
end


include Mymodule
include MyOtherModule
Mymodule.method1
method1 # this will work.
MyOtherModule.method2
method2 #this will fail

Also note: if you do:

include Math
Object.respond_to?("sqrt")

You'll see that Object hasn't really grown a new method at all - it's
all a big trick ;-)
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