[Python-Dev] AST optimizer implemented in Python (original) (raw)
Mark Shannon mark at hotpy.org
Mon Aug 13 10:34:10 CEST 2012
- Previous message: [Python-Dev] AST optimizer implemented in Python
- Next message: [Python-Dev] AST optimizer implemented in Python
- Messages sorted by: [ date ] [ thread ] [ subject ] [ author ]
Brett Cannon wrote:
On Sat, Aug 11, 2012 at 8:16 PM, Eric Snow <ericsnowcurrently at gmail.com_ _<mailto:ericsnowcurrently at gmail.com>> wrote: On Sat, Aug 11, 2012 at 6:03 PM, Brett Cannon <brett at python.org_ _<mailto:brett at python.org>> wrote: > It would also be very easy to expand importlib.abc.SourceLoader to add a > method which is called with source and returns the bytecode to be written > out Yes, please. Not having to hack around this would be nice. http://bugs.python.org/issue15627
AST transformation is a lot more general than just optimization.
Adding an AST transformation is a relatively painless way to add to Python the last element of lisp-ness that it lacks: Namely being able to treat code as data and transform it at runtime, after parsing but before execution.
Some examples: Profiling code be added by an AST transformation. IMO this would have been a more elegant way to implement CProfile and similar profilers than the current approach.
AST transformations allow DSLs to be implemented in Python (I don't know if that is a + or - ).
Access to the AST of a function at runtime would also be of use to method-based dynamic optimizers, or dynamic de-optimizers for static compilers.
All for the price of adding a single method to SourceLoader. What a bargain :)
Cheers, Mark.
- Previous message: [Python-Dev] AST optimizer implemented in Python
- Next message: [Python-Dev] AST optimizer implemented in Python
- Messages sorted by: [ date ] [ thread ] [ subject ] [ author ]