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-rw-r--r--actionpack/lib/action_dispatch/http/mime_type.rb7
1 files changed, 6 insertions, 1 deletions
diff --git a/actionpack/lib/action_dispatch/http/mime_type.rb b/actionpack/lib/action_dispatch/http/mime_type.rb
index cc989d6625..e85823d8db 100644
--- a/actionpack/lib/action_dispatch/http/mime_type.rb
+++ b/actionpack/lib/action_dispatch/http/mime_type.rb
@@ -10,7 +10,12 @@ module Mime
%w(<< concat shift unshift push pop []= clear compact! collect!
delete delete_at delete_if flatten! map! insert reject! reverse!
replace slice! sort! uniq!).each do |method|
- define_method(method) {|*args| @symbols = nil; super(*args) }
+ module_eval <<-CODE
+ def #{method}(*args)
+ @symbols = nil
+ super
+ end
+ CODE
end
end