Omit generating duplicate method by rbs prototype rb

[pocke]

Problem

Sometimes we define the same methods with different bodies. For example:

class C
  if RUBY_VERSION >= '2.7'
    def foo
      do_something_27
    end
  else
    def foo
      do_something
    end
  end
end

But rbs prototype rb generates exactly the same foo method twice.

$ exe/rbs prototype rb test.rb
class C
  def foo: () -> untyped

  def foo: () -> untyped
end

So I need to remove one of the methods manually.

We can find this situation from Active Support codebase.
For example: https://github.com/rails/rails/blob/fbe2433be6e052a1acac63c7faf287c52ed3c5ba/activesupport/lib/active_support/option_merger.rb#L30-L43

Solution

Omit to generate duplicate method if the same method is already generated.

[soutaro]

👍