On Dec 3, 2008, at 3:11 PM, Greg Ewing wrote: > Stefan Behnel wrote: > >> Cython already keeps track of module dependencies (a Pyrex >> feature). But >> I'm not sure if that extends to inter-pxd dependencies. It should >> be easy >> to support that, though. Then the dependency list would tell you >> if you >> have to re-parse a pickled .pxd. > > The difficulty as I see it would be figuring out how to > pickle just the declarations that came from a particular > .pxd file. Simply pickling the symbol table as it's > currently implemented would end up pickling far too much, > and unpickling it would create duplicates of objects > that you don't want duplicated.
Yes, these are *exactly* the kind of issues that I've been looking at, and it's not simple. Things were interconnected enough that it felt like I was pickling the entire state of the compiler. Extracting just the new declarations (and then making sure when they're unpickled that uniqueness and consistency is preserved) is a messy task. Pickling the (unprocessed) parse tree is not as optimal, but has shown some hope. - Robert _______________________________________________ Cython-dev mailing list [email protected] http://codespeak.net/mailman/listinfo/cython-dev
