@spec.get_opts.each do |name, opt|
options[name] = opt.value
counts[name] = opt.count
end
@spec.get_args.each do |name, arg|
args << arg.value
named[name] = arg.value
end
args.flatten!
args += trailing
@report = Report.new(args, named, trailing, options, counts)
if @report.opt(:help)
self.print_usage()
end
unless @spec.get_args.values.all? {|arg| arg.fulfilled? }
raise InterfaceError, "Required argument '#{name.upcase}' was not given."
end
if @spec.trailing_error && !@report.trailing.empty?
raise InterfaceError, "Error: got trailing argument(s): #{trailing.join
