On Jun 15, 2011, at 13:12 , Jon Harper wrote: > On Wed, Jun 15, 2011 at 6:42 PM, Joe Groff <arc...@gmail.com> wrote: >> >> With a bit of boilerplate, you can set up a namespace with "bind" and >> capture the namespace into your callback quotation: >> … > I think the whole point was to avoid modifying the callbacks because > there are many in a typical GUI app.. Else he could have specified the > "with-logging" in all the callbacks.
Indeed. I'd like to wrap my UI startup in: [ … ] with-<whatever> and have it do what I expect with regard to the variables when the GUI's running. I just tried some tricks to get with-logging to set a global variable, but it calls bind and so sets the variable in a new namespace at the top of the namestack. > Also, did you actually try the global variables ? The global namespace > is created at image creation, and the variable (through get) is > searched hierarchically in all parent namespaces until it a value is > found. So if the variable doesn't have a value in the local > namespaces, it will correctly use the one from the global namespace. > At least from what I understand, I might be mistaken. Hmm, you're right, globals *do* work. I tried it the other day and had no luck; I must have done something wrong. So, I can work around this by storing a namespace/assoc in a global (or stashing it in a slot on my world) and then iterating through those in begin-world, setting each variable. It doesn't look like a good idea to modify the namestack directly, or I'd take that approach. I've gotta say that it's really interesting and fun working with a language where namespaces and variable bindings are an optional feature. :-) best, - Fred. ------------------------------------------------------------------------------ EditLive Enterprise is the world's most technically advanced content authoring tool. Experience the power of Track Changes, Inline Image Editing and ensure content is compliant with Accessibility Checking. http://p.sf.net/sfu/ephox-dev2dev _______________________________________________ Factor-talk mailing list Factor-talk@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/factor-talk
