Ruby 3.0 の静的解析テスト用クラス

test.rb

class Kure1
  def self.run
    "kure"
  end
end

# puts Kure1.run

class Kure2
  def initialize(param)
    @kure = param
  end

  def run1
    @kure
  end

  def run2
    @kure == 0 ? 1 : "string"
  end
end

 % rbs prototype rb test.rb
class Kure1
  def self.run: () -> "kure"
end

class Kure2
  def initialize: (untyped param) -> untyped

  def run: () -> untyped
end