aetherknight · davich · May 16, 2016
diff --git a/lib/recursive_open_struct.rb b/lib/recursive_open_struct.rb
@@ -42,6 +42,10 @@ def [](name)
     public_send(name)
   end
 
+  def merge(other)
+    self.class.new(self.to_h.merge(other.to_h))
+  end
+
   # Makes sure ROS responds as expected on #respond_to? and #method requests
   def respond_to_missing?(mid, include_private = false)
     mname = _get_key_from_table_(mid.to_s.chomp('=').chomp('_as_a_hash'))

diff --git a/spec/recursive_open_struct/recursion_spec.rb b/spec/recursive_open_struct/recursion_spec.rb
@@ -16,6 +16,19 @@
       expect(ros.to_hash).to eq h
     end
 
+    describe "#merge" do
+      let(:other_h) { { more: 'data' } }
+      let(:other_ros) { RecursiveOpenStruct.new(other_h) }
+
+      it "can merge in a hash" do
+        expect(ros.merge(other_h).to_h).to eq(h.merge(other_h))
+      end
+
+      it "can merge in a RecursiveOpenStruct" do
+        expect(ros.merge(other_ros).to_h).to eq(h.merge(other_h))
+      end
+    end
+
     it "returns accessed hashes as RecursiveOpenStructs instead of hashes" do
       expect(subject.blah.another).to eq 'value'
     end