# File lib/puppet/node/environment.rb, line 15 15: def self.new(name = nil) 16: name ||= Puppet.settings.value(:environment) 17: 18: raise ArgumentError, "Environment name must be specified" unless name 19: 20: symbol = name.to_sym 21: 22: return @seen[symbol] if @seen[symbol] 23: 24: obj = self.allocate 25: obj.send :initialize, symbol 26: @seen[symbol] = obj 27: end