-var opt_mixins = new OptionArray("Additionals module to min-in", "-m")
-toolcontext.option_context.add_option(opt_mixins)
+var opt_eval = new OptionBool("Specifies the program from command-line", "-e")
+var opt_loop = new OptionBool("Repeatedly run the program for each line in file-name arguments", "-n")
+var opt_vm = new OptionBool("Run the virtual machine instead of the naive interpreter (experimental)", "--vm")
+toolcontext.option_context.add_option(opt_eval, opt_loop, opt_vm)