[wingide-users] breakpoint at end of function
tms at zeetix.com
Mon Aug 16 17:01:51 MDT 2010
Don't forget that breakpoints on "pass" statements don't necessarily
pause the interpreter (sometimes, but not always).
I define a "doNothing_" method at the root of the class hierarchy, and
define it to take a single comment string as its argument:
def doNothing_(self, aCommentString):
I frequently put this at the end of a method (especially those without
an explicit return), add an explanatory comment, and set the breakpoint
at the doNothing_call:
# blah blah blah
self.doNothing_("Did I really do a cool thing?")
Now, it reliably stops. The comment helps me remember why I cared.
This is an example of a code pattern I have called "Marker Method". When
I'm in the middle of active development on multiple classes, I can put
in a (limited) number of marker method calls and then use the
search-in-files method to find them later.
Here are some marker methods I use:
# either pass or halt, depending on your choice
"""I use this to catch obsolete methods that I'm replacing."""
self.error_('Should not call')
self deprecated_(self, aCommentString):
"""Uses aCommentString to identify the new method."""
This pattern is suggested by Smalltalk's "subclassResponsibility" (or
Wingware Support wrote:
> Mitchell L Model wrote:
>> I think this has come up before but I can't find it: is there a way to
>> set a breakpoint at the end of a function (other than adding a pass
>> statement to it and putting the breakpoint there) and is there a way
>> to "watch" the return value (it's great that it's included in Stack
>> Data, but sometimes I want it in a Watch
> No, there isn't a way to break on return yet. In many cases you can of
> course set a breakpoint on the last line of code and hit Step Over once.
> Also, it appears watching the return doesn't work either.
> Both of these would be good enhancements so I'll add them to our list if
> not already there.
Tom Stambaugh, Founder
63 Boston Ave
Somerville, MA 02144
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