lib/rgen/array_extensions.rb in rgen-0.6.2 vs lib/rgen/array_extensions.rb in rgen-0.6.5

@@ -18,11 +18,13 @@
     # This is a problem for Hash[] called with an (empty) array of tupels.
     # It will call to_hash expecting a Hash as the result. When it gets an array instead,
     # it fails with an exception. Make sure it gets a NoMethodException as without this
     # extension and it will catch that and return an empty hash as expected.
     #
+    # Similar problems exist for other Ruby built-in methods which are expected to fail.
+    #
     return super unless (size == 0 && 
-      m != :to_hash) ||
+      m != :to_hash && m != :to_str) ||
       compact.any?{|e| e.is_a? RGen::MetamodelBuilder::MMBase}
     # use an array to build the result to achiev similar ordering
     result = []
     inResult = {}
     compact.each do |e|