# File lib/main/cast.rb, line 141 def self.[] sym prefix = sym.to_s.downcase.to_sym candidates = List.select{|m| m =~ %r/^#{ prefix }/i} m = candidates.shift raise ArgumentError, "unsupported cast: #{ sym.inspect } (#{ List.join ',' })" unless m raise ArgumentError, "ambiguous cast: #{ sym.inspect } (#{ List.join ',' })" unless candidates.empty? or m.to_s == sym.to_s this = self lambda{|obj| method(m).call obj} end