def start(self, opts=None): """ We've already created a debugger object, but here we start debugging in earnest. We can also turn off debugging (but have the hooks suspended or not) using 'stop'. 'opts' is a hash of every known value you might want to set when starting the debugger. See START_OPTS of module default. """ # The below is our fancy equivalent of: # sys.settrace(self._trace_dispatch) try: self.trace_hook_suspend = True get_option = lambda key: Mmisc.option_set(opts, key, default.START_OPTS) add_hook_opts = get_option('add_hook_opts') # Has tracer been started? if not tracer.is_started() or get_option('force'): # FIXME: should filter out opts not for tracer tracer_start_opts = default.START_OPTS.copy() if opts: tracer_start_opts.update(opts.get('tracer_start', {})) tracer_start_opts['trace_fn'] = self.trace_dispatch tracer_start_opts['add_hook_opts'] = add_hook_opts tracer.start(tracer_start_opts) elif not tracer.find_hook(self.trace_dispatch): tracer.add_hook(self.trace_dispatch, add_hook_opts) pass self.execution_status = 'Running' finally: self.trace_hook_suspend = False return
def start(self, opts=None): """ We've already created a debugger object, but here we start debugging in earnest. We can also turn off debugging (but have the hooks suspended or not) using 'stop'. 'opts' is a hash of every known value you might want to set when starting the debugger. See START_OPTS of module default. """ # The below is our fancy equivalent of: # sys.settrace(self._trace_dispatch) try: self.trace_hook_suspend = True get_option = lambda key: Mmisc.option_set(opts, key, default.START_OPTS) add_hook_opts = get_option('add_hook_opts') # Has tracer been started? if not tracer.is_started() or get_option('force'): # FIXME: should filter out opts not for tracer # Also, if we use opts.copy we need to check for 'None'. tracer_start_opts = default.START_OPTS.copy() tracer_start_opts['trace_fn'] = self.trace_dispatch tracer_start_opts['add_hook_opts'] = add_hook_opts tracer.start(tracer_start_opts) elif not tracer.find_hook(self.trace_dispatch): tracer.add_hook(self.trace_dispatch, add_hook_opts) pass self.execution_status = 'Running' finally: self.trace_hook_suspend = False return
def test_basic(self): """Basic sanity and status testing.""" tracer.HOOKS = [] self.assertEqual(0, tracer.size()) self.assertEqual(False, tracer.is_started()) tracer.start() self.assertEqual(True, tracer.is_started()) tracer.stop() self.assertEqual(False, tracer.is_started()) self.assertEqual(1, tracer.add_hook(my_trace_dispatch, {'backlevel': 1})) self.assertEqual(0, len(trace_lines)) tracer.start() self.assertEqual(0, len(trace_lines)) self.assertEqual(True, tracer.is_started()) self.assertEqual( 0, tracer.remove_hook(my_trace_dispatch, stop_if_empty=True)) self.assertEqual(False, tracer.is_started()) self.assertEqual( 1, tracer.add_hook(my_trace_dispatch, { 'start': True, 'backlevel': 1 })) self.assertEqual(True, tracer.is_started()) tracer.clear_hooks_and_stop() return
def stop(self, options=None): # Our version of: # sys.settrace(None) try: self.trace_hook_suspend = True get_option = lambda key: Mmisc.option_set(options, key, default.STOP_OPTS) args = [self.trace_dispatch] remove = get_option('remove') if remove: args.append(remove) pass if tracer.is_started(): try: tracer.remove_hook(*args) except LookupError: pass pass finally: self.trace_hook_suspend = False return
def stop(self, options=None): # Our version of: # pdb.set_trace(None) try: self.trace_hook_suspend = True get_option = lambda key: Mmisc.option_set(options, key, default.STOP_OPTS) args = [self.trace_dispatch] remove = get_option('remove') if remove: args.append(remove) pass if tracer.is_started(): try: tracer.remove_hook(*args) except LookupError: pass pass finally: self.trace_hook_suspend = False return
def is_started(self): '''Return True if debugging is in progress.''' return (tracer.is_started() and not self.trace_hook_suspend and tracer.find_hook(self.trace_dispatch))