Пример #1
0
def static_eval(txt):
    stream, result, parse = sexp_parser.SExpGrammer().parse(txt)
    if not result or stream.position != len(txt):
        print " " * (stream.position + 2) + "^"
        print "Parse error at position: %i" % stream.position
        return
    
    try:
        module = sexp_to_cps.convert_parse_to_cps(parse, False)
    except Exception as e:
        print "Could not interpret syntax: " + str(e)
        return

    try:
        prog = expression_tree.Prog(module)
        instrs, jumps = prog.compile()
    except Exception as e:
        print "Compile error: " + str(e)
        return
    
    try:
        print "Program output: " + str(vm.run_program(instrs, jumps))
    except vm.RuntimeException as e:
        print "Runtime error: " + str(e)
        return
Пример #2
0
def convert_def(parse, module):
    new_module = copy(module)
    main_already_present = "main" in new_module
    new_module.update(sexp_to_cps.convert_parse_to_cps(parse))
    if "main" in new_module and not main_already_present:
        new_module[INTERACTIVE_MAIN] = expression_tree.Func(["ret"], expression_tree.Call("main", [expression_tree.Finish()]))
    return new_module