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Convert Mime::NullType in a singleton

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This commit is contained in:
Guillermo Iguaran 2013-12-03 02:41:26 -05:00
parent 66b1c2d3b5
commit abc1e5831c
1 changed files with 4 additions and 1 deletions
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5
actionpack/lib/action_dispatch/http/mime_type.rb
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@ -1,4 +1,5 @@
require 'set' require 'set'
require 'singleton'
require 'active_support/core_ext/module/attribute_accessors' require 'active_support/core_ext/module/attribute_accessors'
require 'active_support/core_ext/string/starts_ends_with' require 'active_support/core_ext/string/starts_ends_with'
@ -27,7 +28,7 @@ def #{method}(*)
class << self class << self
def [](type) def [](type)
return type if type.is_a?(Type) return type if type.is_a?(Type)
Type.lookup_by_extension(type) || NullType.new Type.lookup_by_extension(type) || NullType.instance
end end
def fetch(type) def fetch(type)
@ -292,6 +293,8 @@ def respond_to_missing?(method, include_private = false) #:nodoc:
end end
class NullType class NullType
include Singleton
def nil? def nil?
true true
end end