JSON::ArrayBuilder#push_raw method

spec/std/json/serialization_spec.cr

@@ -300,11 +300,12 @@ describe "JSON serialization" do
           io.json_array do |array2|
             array2 << 2
             array2 << 3
+            array2.push_raw(%Q<{"d":"e"}>)
           end
         end
       end
     end
-    result.should eq("[1,[2,3]]")
+    result.should eq(%q<[1,[2,3,{"d":"e"}]]>)
   end
 
   it "generate object with raw_field" do

src/json/to_json.cr

@@ -64,6 +64,11 @@ struct JSON::ArrayBuilder(T)
     push { value.to_json(@io) }
   end
 
+  # Appends a JSON raw value into this array
+  def push_raw(value)
+    push { value.to_s(@io) }
+  end
+
   # Executes the block, expecting it to append a value
   # in this array
   def push