module ActionView #:nodoc: # = Action View PathSet # # This class is used to store and access paths in Action View. A number of # operations are defined so that you can search among the paths in this # set and also perform operations on other +PathSet+ objects. # # A +LookupContext+ will use a +PathSet+ to store the paths in its context. class PathSet #:nodoc: include Enumerable attr_reader :paths delegate :[], :include?, :pop, :size, :each, to: :paths def initialize(paths = []) @paths = typecast paths end def initialize_copy(other) @paths = other.paths.dup self end def to_ary paths.dup 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) paths.#{method}(*typecast(args)) end METHOD end def find(*args) find_all(*args).first || raise(MissingTemplate.new(self, *args)) end def find_all(path, prefixes = [], *args) prefixes = [prefixes] if String === prefixes prefixes.each do |prefix| paths.each do |resolver| templates = resolver.find_all(path, prefix, *args) return templates unless templates.empty? end end [] end def exists?(path, prefixes, *args) find_all(path, prefixes, *args).any? end def find_all_with_query(query) # :nodoc: paths.each do |resolver| templates = resolver.find_all_with_query(query) return templates unless templates.empty? end [] end private def typecast(paths) paths.map do |path| case path when Pathname, String OptimizedFileSystemResolver.new path.to_s else path end end end end end