class Gem::ErrorReason; end # Generated when trying to lookup a gem to indicate that the gem # was found, but that it isn't usable on the current platform. # # fetch and install read these and report them to the user to aid # in figuring out why a gem couldn't be installed. # class Gem::PlatformMismatch < Gem::ErrorReason attr_reader :name attr_reader :version attr_reader :platforms def initialize(name, version) @name = name @version = version @platforms = [] end def add_platform(platform) @platforms << platform end def wordy prefix = "Found #{@name} (#{@version})" if @platforms.size == 1 "#{prefix}, but was for platform #{@platforms[0]}" else "#{prefix}, but was for platforms #{@platforms.join(' ,')}" end end end