sashaegorov · January 13, 2016 16:53 · Jan 13, 2016
diff --git a/ruby_private_inheritance.rb b/ruby_private_inheritance.rb
@@ -0,0 +1,38 @@
+class Parent
+  attr_accessor :a, :b
+  def initialize(a)
+    @a = a
+  end
+  private
+  def set_b
+    @b = 'b'
+  end
+end
+
+class Child < Parent
+  attr_accessor :c
+  def initialize(c)
+    @c = c
+  end
+  def set_c
+    set_b
+  end
+end
+
+c = Child.new('x')
+# => #<Child:0x007f9989919680 @c="x">
+c.a
+# => nil
+c.b
+# => nil
+c.c
+# => "x"
+
+c.set_c
+# => "b"
+c.a
+# => nil
+c.b
+# => "b"
+c.c
+# => "x"