Is this a bug, or is it just a logical consequence
It’s a “quirk”. Some consider it a bug.
Parent scopes used for looking up unresolved constants are determined by module nesting. It just so happens that when you use module Top::Foo
, it creates just one level of nesting instead of two. Observe:
module Top
module Foo
class SomeTest
Module.nesting # => [Top::Foo::SomeTest, Top::Foo, Top]
end
end
end
module Top::Foo
class SomeTest
Module.nesting # => [Top::Foo::SomeTest, Top::Foo]
end
end