syntax - How does the :: operator work in Ruby? -

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i new ruby , confused :: operator. why following code output 2, 3, 4, 5, 1 , not output 1? thanks!

class c   = 5   module m     = 4     module n       = 3       class d         = 2         def show_a           = 1           puts         end         puts       end       puts     end     puts   end   puts end    d = c::m::n::d.new d.show_a

if remove last line, see 5, 4, 3, 2. reason body of classes , modules regular code (unlike in other languages). therefore, print statements executed when classes/modules getting parsed.

as how :: works - lets move around scopes. ::a reference a in main scope. a refer a in current scope. a::b refer b, inside a, inside current scope.


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