Do not fail when some garbage gets appanded to methods array

lib/awesome_print/formatter.rb

@@ -214,15 +214,17 @@ module AwesomePrint
     def methods_array(a)
       object = a.instance_variable_get('@__awesome_methods__')
       tuples = a.map do |name|
-        tuple = if object.respond_to?(name, true)         # Is this a regular method?
+        if name.is_a?(Symbol) || name.is_a?(String)         # Ignore garbage, ex. 42.methods << [ :blah ]
-          the_method = object.method(name) rescue nil     # Avoid potential ArgumentError if object#method is overridden.
+          tuple = if object.respond_to?(name, true)         # Is this a regular method?
-          if the_method && the_method.respond_to?(:arity) # Is this original object#method?
+            the_method = object.method(name) rescue nil     # Avoid potential ArgumentError if object#method is overridden.
-            method_tuple(the_method)                      # Yes, we are good.
+            if the_method && the_method.respond_to?(:arity) # Is this original object#method?
+              method_tuple(the_method)                      # Yes, we are good.
+            end
+          elsif object.respond_to?(:instance_method)        # Is this an unbound method?
+            method_tuple(object.instance_method(name))
           end
-        elsif object.respond_to?(:instance_method)        # Is this an unbound method?
-          method_tuple(object.instance_method(name))
         end
-        tuple || [ name.to_s, '(?)', '' ]                 # Return WTF default if all the above fails.
+        tuple || [ name.to_s, '(?)', '?' ]                  # Return WTF default if all the above fails.
       end
 
       width = (tuples.size - 1).to_s.size

spec/methods_spec.rb

@@ -445,4 +445,10 @@ describe "Methods arrays" do
     hello = Hello.new
     (hello.send(:his) - hello.send(:her)).sort_by { |x| x.to_s }.should == [ :him, :his ]
   end
+
+  it "appending garbage to methods array should not raise error" do
+    arr = 42.methods << [ :wtf ]
+    arr.ai(:plain => true).should_not raise_error(TypeError)
+    arr.ai(:plain => true).should =~ /\s+wtf\(\?\)\s+\?/
+  end
 end