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@@ -19,7 +19,7 @@ module ActiveSupport #:nodoc:
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         #   %w(1 2 3).in_groups_of(2, false) {|g| p g}
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         #   ["1", "2"]
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         #   ["3"]
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-        def in_groups_of(number, fill_with = nil, &block)
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+        def in_groups_of(number, fill_with = nil)
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           if fill_with == false
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             collection = self
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           else
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@@ -31,7 +31,7 @@ module ActiveSupport #:nodoc:
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           end
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           if block_given?
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-            collection.each_slice(number, &block)
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+            collection.each_slice(number) { |slice| yield(slice) }
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           else
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             returning [] do |groups|
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               collection.each_slice(number) { |group| groups << group }
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@@ -87,11 +87,11 @@ module ActiveSupport #:nodoc:
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         #
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         #   [1, 2, 3, 4, 5].split(3)                # => [[1, 2], [4, 5]]
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         #   (1..10).to_a.split { |i| i % 3 == 0 }   # => [[1, 2], [4, 5], [7, 8], [10]]
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-        def split(value = nil, &block)
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-          block ||= Proc.new { |e| e == value }
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+        def split(value = nil)
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+          using_block = block_given?
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           inject([[]]) do |results, element|
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-            if block.call(element)
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+            if (using_block && yield(element)) || (value == element)
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               results << []
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             else
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               results.last << element