What does :: mean at the beginning?

[Iñaki Baz Castillo]

Hi, looking at a Ruby code I've found this:

repo =3D ::Logging::Repository.instance

What does the first :: mean?

Thanks.

=2D-=20
I=C3=B1aki Baz Castillo

 

[Jason Roelofs]

It's an "ensure you're pulling from the top level". Works exactly the
same as in C++

Jason

 

[ara.t.howard]

Hi, looking at a Ruby code I've found this:

repo =3D ::Logging::Repository.instance

What does the first :: mean?

Thanks.

start a the 'top' namespace

class A
end

module M
class A
end

p ::A # the top level one, not the normally scoped one
end

a @ http://codeforpeople.com/

 

[Iñaki Baz Castillo]

El Jueves, 21 de Agosto de 2008, Jason Roelofs escribi=F3:

It's an "ensure you're pulling from the top level". Works exactly the
same as in C++

Let me be sure:


module A
CONS =3D "AAA"
module B
CONS =3D "BBB"
end
end

module A
module B
puts ::A::CONS
end
end

=3D> AAA


Is it?

Thanks a lot.


=2D-=20
I=F1aki Baz Castillo