lib/yard/handlers/ruby/yield_handler.rb in yard-0.2.3.5 vs lib/yard/handlers/ruby/yield_handler.rb in yard-0.4.0

@@ -5,11 +5,10 @@
     return unless owner.is_a?(MethodObject) # Only methods yield
     return if owner.has_tag? :yield         # Don't override yield tags
     return if owner.has_tag? :yieldparam    # Same thing.
 
     yieldtag = YARD::Tags::Tag.new(:yield, "", [])
-    owner.docstring.add_tag(yieldtag)
     
     if statement.type == :yield
       statement.jump(:list).children.each do |item|
         if item == s(:var_ref, s(:kw, "self"))
           yieldtag.types << '_self'
@@ -22,7 +21,9 @@
         else
           yieldtag.types << item.source
         end
       end
     end
+    
+    owner.docstring.add_tag(yieldtag) unless yieldtag.types.empty?
   end
 end
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