lib/unparser/writer/dynamic_string.rb in unparser-0.5.0 vs lib/unparser/writer/dynamic_string.rb in unparser-0.5.1

@@ -44,11 +44,11 @@
       def heredoc_header
         need_squiggly? ? '<<~HEREDOC' : '<<-HEREDOC'
       end
 
       def heredoc?
-        children.empty? || (nl_last_child? && heredoc_pattern?)
+        !children.empty? && (nl_last_child? && heredoc_pattern?)
       end
 
       def emit_heredoc_header
         write(heredoc_header)
       end
@@ -167,11 +167,15 @@
       def emit_dynamic_component(node)
         visit(node) if node
       end
 
       def emit_dstr
-        segments.each_with_index do |children, index|
-          emit_segment(children, index)
+        if children.empty?
+          write('%()')
+        else
+          segments.each_with_index do |children, index|
+            emit_segment(children, index)
+          end
         end
       end
 
       def breakpoint?(child, current)
         last_type = current.last&.type