Accessing functions in a module without 'include'

[Ronald Fischer]

Usually I work with modules like this:

# Defining a module in one file
module M
def f(x)
....
end
end

# Using the module in another file
require 'M'
include M
f(45)

Sometimes I would find it more convenient to *not* inject
the module's namespace into the user's namespace, i.e. to
do it without the include statement. I thought it would=20
be easy to qualify the foreign function with the module
name:

# Using the module in another file
# (this does not work)
require 'M'
M::f(45) # Error: undefined method 'f'

Maybe I'm thinking to Perlish here. Can it be done what I want
to achieve, and how?

Ronald
--=20
Ronald Fischer <[email protected]>
Phone: +49-89-452133-162
=20

 

[Trans]

Usually I work with modules like this:

# Defining a module in one file
module M
module_function # <<<<<<<<< HERE
def f(x)
....
end
end

T.

 

[Ronald Fischer]

Sometimes I would find it more convenient to *not* inject

=20
Not sure if it's what you want, but if you define M as=20
follows it works:
=20
module M
def self.f(x)
....
end
end

Thank you, this works perfectly well!

Ronald

 

[Ronald Fischer]

# Defining a module in one file

module M
module_function # <<<<<<<<< HERE
def f(x)
....
end
end

Thank you, this is indeed one solution to my problem (though in the
end, I'm going to stick with Michael Hollins' proposal).

Ronald

 

[Trans]

Thank you, this is indeed one solution to my problem (though in the
end, I'm going to stick with Michael Hollins' proposal).

Don't mention it BTW, Just to make sure you know, you can't use
Micheal's solution if you still want the option of including the
Module elsewhere. In effect using module_function is the same as:

module M
def self.f(x)
....
end
def f(x)
....
end
private :f
end

Probably you've already figured that out, but just in case...

T.

 

[Ronald Fischer]

BTW, Just to make sure you know, you can't use

Micheal's solution if you still want the option of including the
Module elsewhere. In effect using module_function is the same as:
=20
module M
def self.f(x)
....
end
def f(x)
....
end
private :f
end

I wasn't aware that the instance functions would then go private,
but in my case this would be no problem anyway.

Ronald