I see in a lot of Ruby source code a double colon before module names, I wonder what is that all about? Here is an example from a Ruby Gem called Conductor:
https://github.com/rails/conductor/blob/master/lib/conductor/engine.rb#L7
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It's short of Object::(constant) – avl Nov 05 '14 at 13:56
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It's a namespace resolution operator. It allows you to access items in modules, or class-level items in classes. – Benji Nov 05 '14 at 13:59
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I don't ask about the operator itself, I ask why it is there before the module name like: **::Rails** – Wazery Nov 05 '14 at 14:00
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@Wazery - it is explained in the other question as well. – BroiSatse Nov 05 '14 at 14:05
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1That means it is referring to the toplevel namespace. http://pastebin.com/my4x5F9c – Benji Nov 05 '14 at 14:17