Hey all,
Sorry to keep asking questions on the mailing list, but I've been doing my
semester research project on PyPy, and my deadline is beginning to loom...
I have a question concerning what I think is a conflict between the RPython
coding guide and the 2005 EU paper. The paper states:
Our approach goes further and analyses live programs in memory: the program is
allowed to contain fully dynamic sections, as long as these sections are
entered a bounded num- ber of times. For example, the source code of the PyPy
interpreter, which is itself written in this bounded-dynamism style, makes
extensive use of the fact that it is possible to build new classes at any point
in time -- not just during an initialisation phase -- as long as the number of
new classes is bounded. For example, interpreter/gateway.py builds a custom
wrapper class corresponding to each function that a particular variable can
reference. There is a finite num- ber of functions in total, so this can only
create a finite number of extra wrapper classes.
While the coding guide says:
definitions
run-time definition of classes or functions is not allowed.
I'm I understood the paper correctly, any piece of code can create zero or one
class, but not infinity. However, this doesn't seem to jive with what the
coding guide says.
Alex
_______________________________________________
pypy-dev mailing list
[email protected]
http://mail.python.org/mailman/listinfo/pypy-dev
