In my Rails project, when I upgraded tzinfo to 1.2.7 it caused this error whenever I tried to boot the app:
facets/lib/core/facets/enumerable/recursively.rb:19:in `private': undefined method `untaint' for class `Enumerable::Recursor'
I was able to reproduce in more minimal context with:
require 'tzinfo/ruby_core_support'
class C; private :untaint; end
It looks like 'tzinfo/ruby_core_support' adds untaint method to Object using a refinement, which somehow isn't compatible with what facets does. Anyone have an idea how to fix this on the facets side?
Maybe as simple as just adding untaint as an exception to this line (which caused the error)?:
instance_methods(true).each{ |m| private m unless /^(__|object_id$)/ =~ m.to_s }
but that seems brittle.
Why are we making these private anyway? Is there a better way we could do this? BasicObject?