Running IronPython 2.6 with Python stack frame support

IronPython 2.6 has Python stack frame support. Python stack frame support has a performance cost, but allows code that uses sys._getframe(), plus the standard library pdb debugger, to work.

To run IronPython 2.6 with stack frame support you need to use one of two command line switches, -X:Frames or -X:FullFrames. In an email on the IronPython mailing list Dino Veihland (core IronPython developer) explains the difference:
-X:FullFrames promotes all local variables into the heap. So you can always crawl the stack and look/change them for all methods.

-X:Frames only creates the frame objects and if something happens to make us promote local variables (e.g. a closure, or a call to locals(), exec, eval, dir(), vars()) then the local variables will be available for that specific method.

Comments

Popular posts from this blog

Extending Abobe Flash Player and AIR with Python and Ruby

Further Adventures of the Debugger

IronPython Tools for Visual Studio CTP3