On Thu, Aug 20, 2009 at 6:11 PM, "Martin v. Löwis"<mar...@v.loewis.de> wrote: > Couldn't you just generate a check function for your tree that > would be invoked before you try to process a tree that a > script got access to? That would be one way, though now that I understand CPython's AST design better, I am tempted to follow the lead. If I had a private AST and and a public mirror for ast.py, the design could become much simpler, and probably faster for normal parsing.
> If you are asking that a type check is made on assigning a value to > these fields - I'm not quite sure whether you could implement that > check reliably. Wouldn't it be possible to bypass it by filling a > value directly into __dict__? > > If you can come up with a patch that checks in a reliable manner, > I would be in favor of adding that (in 2.7 and 3.2), taking out > the corresponding checks when converting to the internal AST. Great, I may give it a try, but changing the AST impl for Jython 2.6 will probably be my short term answer. -Frank _______________________________________________ Python-Dev mailing list Python-Dev@python.org http://mail.python.org/mailman/listinfo/python-dev Unsubscribe: http://mail.python.org/mailman/options/python-dev/archive%40mail-archive.com
