fix dynamic delegate

lib/ripper-tags/parser.rb

@@ -316,8 +316,8 @@ def on_assoc_new(key, value)
   end
 
   def on_delegate(*args)
-    method_names = args.select { |arg| arg.first.is_a? String }
-    options = args.select { |arg| arg.first.is_a?(Array) && arg.first.first == :assoc }.flatten(1)
+    method_names = args.select { |arg| arg.is_a?(Array) && arg.first.is_a?(String) }
+    options = args.select { |arg| arg.is_a?(Array) && arg.first.is_a?(Array) && arg.first.first == :assoc }.flatten(1)
     options = Hash[options.map { |_assoc, key, val| [key[0], val[0]] if key }.compact]
 
     target = options["to:"] || options["to"] # When using hashrocket syntax there is no ':'

test/test_ripper_tags.rb

@@ -578,6 +578,9 @@ def test_invalid_delegate
       class C
         delegate
         delegate [1, 2]
+        %i(test).each do |m|
+          delegate m, :"\#{m}=", to: :object
+        end
       end
     EOC
     assert_equal 1, tags.count
@@ -846,19 +849,4 @@ def included_method; end
     expected = ["Object#test_method", "M", "M#included_method", "M#cache", "M#cache="]
     assert_equal expected, tags.map { |t| t[:full_name] }
   end
-
-  def test_multi_argument_delegate
-    tags = extract(<<-EOC)
-      class C
-        def object = Object.new
-        delegate :thing, :other, to: :object
-        %i(test).each do |m|
-          delegate m, :"\#{m}=", to: :object
-        end
-      end
-    EOC
-
-    expected = ["C", "C#object", "C#thing", "C#other", "C#test", "C#test="].sort
-    assert_equal expected, tags.map { |t| t[:full_name] }.sort
-  end
 end