lib/dry/swagger/struct_parser.rb in dry-swagger-0.5.1 vs lib/dry/swagger/struct_parser.rb in dry-swagger-0.5.2

@@ -117,13 +117,12 @@
 
       def visit_sum(node, opts = {})
         if node[0][0].equal?(:constrained)
           opts[:nullable] = true
           visit(node[1], opts) # ignore NilClass constrained
-        elsif node[0][0].equal?(:struct) && node[1][0].equal?(:struct)
+        elsif node[0][0].equal?(:struct) || node[0][0].equal?(:sum)
           opts[:oneOf] = true
-          visit(node[0], opts)
-          visit(node[1], opts)
+          node.each { |child| visit(child, opts) unless child.is_a?(Hash) }
         end
       end
 
       def visit_struct(node, opts = {})
         opts[:member] = true
\ No newline at end of file