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rails--rails/actionpack/lib/action_view/path_set.rb

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module ActionView #:nodoc:
# = Action View PathSet
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class PathSet #:nodoc:
include Enumerable
attr_reader :paths
def initialize(paths = [])
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@paths = typecast paths
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end
def initialize_copy(other)
@paths = other.paths.dup
self
end
def [](i)
paths[i]
end
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def to_ary
paths.dup
end
def include?(item)
paths.include? item
end
def pop
paths.pop
end
def size
paths.size
end
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def each(&block)
paths.each(&block)
end
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def compact
PathSet.new paths.compact
end
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def +(array)
PathSet.new(paths + array)
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end
%w(<< concat push insert unshift).each do |method|
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class_eval <<-METHOD, __FILE__, __LINE__ + 1
def #{method}(*args)
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paths.#{method}(*typecast(args))
end
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METHOD
end
def find(*args)
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find_all(*args).first || raise(MissingTemplate.new(self, *args))
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end
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def find_all(path, prefixes = [], *args)
prefixes = [prefixes] if String === prefixes
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prefixes.each do |prefix|
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paths.each do |resolver|
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templates = resolver.find_all(path, prefix, *args)
return templates unless templates.empty?
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end
end
[]
end
def exists?(path, prefixes, *args)
find_all(path, prefixes, *args).any?
end
private
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def typecast(paths)
paths.map do |path|
case path
when Pathname, String
OptimizedFileSystemResolver.new path.to_s
else
path
end
end
end
end
end