1 files changed, 60 insertions, 13 deletions
diff --git a/actionpack/lib/action_view/path_set.rb b/actionpack/lib/action_view/path_set.rb
index e0cb5d6a70..bbb1af8154 100644
--- a/actionpack/lib/action_view/path_set.rb
+++ b/actionpack/lib/action_view/path_set.rb
@@ -1,11 +1,55 @@
 module ActionView #:nodoc:
   # = Action View PathSet
-  class PathSet < Array #:nodoc:
-    %w(initialize << concat insert push unshift).each do |method|
+  class PathSet #:nodoc:
+    include Enumerable
+
+    attr_reader :paths
+
+    def initialize(paths = [])
+      @paths = typecast paths
+    end
+
+    def initialize_copy(other)
+      @paths = other.paths.dup
+      self
+    end
+
+    def [](i)
+      paths[i]
+    end
+
+    def to_ary
+      paths.dup
+    end
+
+    def include?(item)
+      paths.include? item
+    end
+
+    def pop
+      paths.pop
+    end
+
+    def size
+      paths.size
+    end
+
+    def each(&block)
+      paths.each(&block)
+    end
+
+    def compact
+      PathSet.new paths.compact
+    end
+
+    def +(array)
+      PathSet.new(paths + array)
+    end
+
+    %w(<< concat push insert unshift).each do |method|
       class_eval <<-METHOD, __FILE__, __LINE__ + 1
         def #{method}(*args)
-          super
-          typecast!
+          paths.#{method}(*typecast(args))
         end
       METHOD
     end
@@ -17,7 +61,7 @@ module ActionView #:nodoc:
     def find_all(path, prefixes = [], *args)
       prefixes = [prefixes] if String === prefixes
       prefixes.each do |prefix|
-        each do |resolver|
+        paths.each do |resolver|
           templates = resolver.find_all(path, prefix, *args)
           return templates unless templates.empty?
         end
@@ -25,17 +69,20 @@ module ActionView #:nodoc:
       []
     end
 
-    def exists?(*args)
-      find_all(*args).any?
+    def exists?(path, prefixes, *args)
+      find_all(path, prefixes, *args).any?
     end
 
-  protected
+    private
 
-    def typecast!
-      each_with_index do |path, i|
-        path = path.to_s if path.is_a?(Pathname)
-        next unless path.is_a?(String)
-        self[i] = OptimizedFileSystemResolver.new(path)
+    def typecast(paths)
+      paths.map do |path|
+        case path
+        when Pathname, String
+          OptimizedFileSystemResolver.new path.to_s
+        else
+          path
+        end
       end
     end
   end