Mel: Wow that book brings back memories. I scanned my copy to review the subject covered, and came to the conclusion that mind reading algorithms are the answer.
Sam Schulenburg Mel Wilson wrote: > sam wrote: > > tomer: > > > > It is my opinion that you would loose performance if the Python > > interpreter had the additional task of verifying byte code. It might be > > more appropriate to have a preprocessor that did the verifying as it > > compiled the byte code. > > Possibly. A good book on the topic is Douglas Hofstadter's > _Goedel, Escher, Bach: an Eternal Golden Braid_. > > Particularly starting from the chapter "Contracrostipunctus". > > Cheers, Mel. > > > > > Sam Schulenburg > > > > gangesmaster wrote: > >> the following (random) code crashes my interpreter > >> (python 2.4.3/winxp): > >> > >> from types import CodeType as code > >> exec code(0, 5, 8, 0, "hello moshe", (), (), (), "", "", 0, "") > >> > >> i would expect the interpreter to do some verifying, at least for > >> sanity (valid opcodes, correct stack size, etc.) before executing > >> artbitrary code... after all, it was the BDFL who said """I'm not > >> saying it's uncrashable. I'm saying that if you crash it, it's a > >> bug unless proven harebrained.""" > >> > >> > >> -tomer > > -- http://mail.python.org/mailman/listinfo/python-list
