def handle_line(self, frame, arg):
if not DETACHED:
stepping = self.stepping
# http://pytools.codeplex.com/workitem/815
# if we block for a step into/over we don't want to block again for a breakpoint
blocked_for_stepping = False
if stepping is not STEPPING_NONE: # check for the common case of no stepping first...
if (((stepping == STEPPING_OVER or stepping == STEPPING_INTO) and frame.f_lineno != self.stopped_on_line)
or stepping == STEPPING_LAUNCH_BREAK
or stepping == STEPPING_ATTACH_BREAK):
if ((stepping == STEPPING_LAUNCH_BREAK and not MODULES) or
not should_debug_code(frame.f_code)): # don't break into our own debugger / non-user code
# don't break into inital Python code needed to set things up
return self.trace_func
blocked_for_stepping = stepping != STEPPING_LAUNCH_BREAK and stepping != STEPPING_ATTACH_BREAK
self.block_maybe_attach()
if BREAKPOINTS and blocked_for_stepping is False:
bp = BREAKPOINTS.get(frame.f_lineno)
if bp is not None:
for (filename, bp_id), (condition, bound) in bp.items():
if filename == frame.f_code.co_filename or (not bound and filename_is_same(filename, frame.f_code.co_filename)):
if condition:
try:
res = eval(condition.condition, frame.f_globals, frame.f_locals)
if condition.break_when_changed:
block = condition.last_value != res
condition.last_value = res
else:
block = res
except:
block = True
else:
block = True
if block:
probe_stack()
update_all_thread_stacks(self)
self.block(lambda: (report_breakpoint_hit(bp_id, self.id), mark_all_threads_for_break()))
break
# forward call to previous trace function, if any, updating trace function appropriately
old_trace_func = self.prev_trace_func
if old_trace_func is not None:
self.prev_trace_func = None # clear first incase old_trace_func stack overflows
self.prev_trace_func = old_trace_func(frame, 'line', arg)
return self.trace_func
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