Rich and Klaus,
I looked at toggle break on entry and I don't find that to be terribly useful. There are a few problems that I saw. First don't try to add a break to new. Second it uses the compiled version of the bytecodes, which can make the method very hard to read. Adding and removing a halt seems to me to be easier and allows for greater flexibility. Just add the world halt in your code just about anywhere after an object, or add the line: self halt. where you want to break. For example:
Person>calcAge "return to the sender the age in years of this person" ^(Date today - self halt birthdate) // 365.25
This will halt in the message chain right before sending the method birthdate. Then you can use the debugger to find out what birthdate does. Some people have argued that you don't really know that halt returns "self" so you should add a semicolon to the halt to make sure you get back to the right object when the halt returns. So it should read instead
... self halt; birthdate ... since halt does return self this to me is a style question an I'll leave it up to you.
Also see my earlier post on alternate halts.
http://lists.squeakfoundation.org/pipermail/beginners/2006-May/000121.html
Just remember to remove the halts later or consider adding a halt exception handler if you have a production application. The handler can simply skip the halts.
If you have any questions feel free!
Happy Coding!!
Ron Teitelbaum President / Principal Software Engineer US Medical Record Specialists Ron@USMedRec.com
-----Original Message----- From: Rich Sent: Tuesday, May 16, 2006 8:28 AM Would that be "Toogle break on entry?"
On 5/16/06, Klaus D. Witzel klaus.witzel@cobss.com wrote:
Hi Chad & Rich,
in a browser select a method and do a right click, breakpoint is
mentioned
in that contect menu.
/Klaus
On Tue, 16 May 2006 05:19:25 +0200, Chad Nantais chad@clearwaterassociates.ca wrote:
Drop a 'self halt' where you want a breakpoint. That will launch the debugger.
Hope this helps.
Chad
On 5/15/06, Rich rjseagraves@gmail.com wrote:
I've been playing around with Squeak's debugger, and I was wondering how you set breakpoints (or if you can set breakpoints)? Thanks you.
-Rich