def trace_dispatch(self, frame, event, arg):
main_debugger, filename, info, thread = self._args
try:
info.is_tracing = True
if main_debugger._finishDebuggingSession:
return None
if getattr(thread, 'pydev_do_not_trace', None):
return None
if event == 'call' and main_debugger.signature_factory:
sendSignatureCallTrace(main_debugger, frame, filename)
is_exception_event = event == 'exception'
has_exception_breakpoints = main_debugger.break_on_caught_exceptions or main_debugger.django_exception_break
if is_exception_event:
if has_exception_breakpoints:
flag, frame = self.should_stop_on_exception(frame, event, arg)
if flag:
self.handle_exception(frame, event, arg)
return self.trace_dispatch
elif event not in ('line', 'call', 'return'):
#I believe this can only happen in jython on some frontiers on jython and java code, which we don't want to trace.
return None
stop_frame = info.pydev_step_stop
step_cmd = info.pydev_step_cmd
if is_exception_event:
breakpoints_for_file = None
else:
# If we are in single step mode and something causes us to exit the current frame, we need to make sure we break
# eventually. Force the step mode to step into and the step stop frame to None.
# I.e.: F6 in the end of a function should stop in the next possible position (instead of forcing the user
# to make a step in or step over at that location).
# Note: this is especially troublesome when we're skipping code with the
# @DontTrace comment.
if stop_frame is frame and event in ('return', 'exception') and step_cmd in (CMD_STEP_RETURN, CMD_STEP_OVER):
info.pydev_step_cmd = CMD_STEP_INTO
info.pydev_step_stop = None
breakpoints_for_file = main_debugger.breakpoints.get(filename)
can_skip = False
if info.pydev_state == STATE_RUN:
#we can skip if:
#- we have no stop marked
#- we should make a step return/step over and we're not in the current frame
can_skip = (step_cmd is None and stop_frame is None)\
or (step_cmd in (CMD_STEP_RETURN, CMD_STEP_OVER) and stop_frame is not frame)
check_stop_on_django_render_call = main_debugger.django_breakpoints and self._is_django_render_call(frame)
if check_stop_on_django_render_call:
can_skip = False
# Let's check to see if we are in a function that has a breakpoint. If we don't have a breakpoint,
# we will return nothing for the next trace
#also, after we hit a breakpoint and go to some other debugging state, we have to force the set trace anyway,
#so, that's why the additional checks are there.
if not breakpoints_for_file:
if can_skip:
if has_exception_breakpoints:
return self.trace_exception
else:
return None
else:
#checks the breakpoint to see if there is a context match in some function
curr_func_name = frame.f_code.co_name
#global context is set with an empty name
if curr_func_name in ('?', '<module>'):
curr_func_name = ''
for breakpoint in DictIterValues(breakpoints_for_file): #jython does not support itervalues()
#will match either global or some function
if breakpoint.func_name in ('None', curr_func_name):
break
else: # if we had some break, it won't get here (so, that's a context that we want to skip)
if can_skip:
if has_exception_breakpoints:
return self.trace_exception
else:
return None
#We may have hit a breakpoint or we are already in step mode. Either way, let's check what we should do in this frame
#print 'NOT skipped', frame.f_lineno, frame.f_code.co_name, event
try:
line = frame.f_lineno
flag = False
if event == 'call' and info.pydev_state != STATE_SUSPEND and check_stop_on_django_render_call:
flag, frame = self.should_stop_on_django_breakpoint(frame, event, arg)
#return is not taken into account for breakpoint hit because we'd have a double-hit in this case
#(one for the line and the other for the return).
if not flag and event != 'return' and info.pydev_state != STATE_SUSPEND and breakpoints_for_file is not None\
and DictContains(breakpoints_for_file, line):
#ok, hit breakpoint, now, we have to discover if it is a conditional breakpoint
# lets do the conditional stuff here
breakpoint = breakpoints_for_file[line]
stop = True
if step_cmd == CMD_STEP_OVER and stop_frame is frame and event in ('line', 'return'):
stop = False #we don't stop on breakpoint if we have to stop by step-over (it will be processed later)
else:
condition = breakpoint.condition
if condition is not None:
try:
val = eval(condition, frame.f_globals, frame.f_locals)
if not val:
return self.trace_dispatch
except:
if type(condition) != type(''):
if hasattr(condition, 'encode'):
condition = condition.encode('utf-8')
msg = 'Error while evaluating expression: %s\n' % (condition,)
sys.stderr.write(msg)
traceback.print_exc()
if not main_debugger.suspend_on_breakpoint_exception:
return self.trace_dispatch
else:
stop = True
try:
additional_info = None
try:
additional_info = thread.additionalInfo
except AttributeError:
pass #that's ok, no info currently set
if additional_info is not None:
# add exception_type and stacktrace into thread additional info
etype, value, tb = sys.exc_info()
try:
error = ''.join(traceback.format_exception_only(etype, value))
stack = traceback.extract_stack(f=tb.tb_frame.f_back)
# On self.setSuspend(thread, CMD_SET_BREAK) this info will be
# sent to the client.
additional_info.conditional_breakpoint_exception = \
('Condition:\n' + condition + '\n\nError:\n' + error, stack)
finally:
etype, value, tb = None, None, None
except:
traceback.print_exc()
if breakpoint.expression is not None:
try:
try:
val = eval(breakpoint.expression, frame.f_globals, frame.f_locals)
except:
val = sys.exc_info()[1]
finally:
if val is not None:
thread.additionalInfo.message = val
if stop:
self.setSuspend(thread, CMD_SET_BREAK)
# if thread has a suspend flag, we suspend with a busy wait
if info.pydev_state == STATE_SUSPEND:
self.doWaitSuspend(thread, frame, event, arg)
return self.trace_dispatch
except:
traceback.print_exc()
raise
#step handling. We stop when we hit the right frame
try:
django_stop = False
should_skip = False
if pydevd_dont_trace.should_trace_hook is not None:
if not hasattr(self, 'should_skip'):
# I.e.: cache the result on self.should_skip (no need to evaluate the same frame multiple times).
# Note that on a code reload, we won't re-evaluate this because in practice, the frame.f_code
# Which will be handled by this frame is read-only, so, we can cache it safely.
should_skip = self.should_skip = not pydevd_dont_trace.should_trace_hook(frame, filename)
else:
should_skip = self.should_skip
if should_skip:
stop = False
elif step_cmd == CMD_STEP_INTO:
stop = event in ('line', 'return')
if is_django_suspended(thread):
#django_stop = event == 'call' and is_django_render_call(frame)
stop = stop and is_django_resolve_call(frame.f_back) and not is_django_context_get_call(frame)
if stop:
info.pydev_django_resolve_frame = 1 #we remember that we've go into python code from django rendering frame
elif step_cmd == CMD_STEP_OVER:
if is_django_suspended(thread):
django_stop = event == 'call' and self._is_django_render_call(frame)
stop = False
else:
if event == 'return' and info.pydev_django_resolve_frame is not None and is_django_resolve_call(frame.f_back):
#we return to Django suspend mode and should not stop before django rendering frame
stop_frame = info.pydev_step_stop = info.pydev_django_resolve_frame
info.pydev_django_resolve_frame = None
thread.additionalInfo.suspend_type = DJANGO_SUSPEND
stop = stop_frame is frame and event in ('line', 'return')
elif step_cmd == CMD_SMART_STEP_INTO:
stop = False
if info.pydev_smart_step_stop is frame:
info.pydev_func_name = None
info.pydev_smart_step_stop = None
if event == 'line' or event == 'exception':
curr_func_name = frame.f_code.co_name
#global context is set with an empty name
if curr_func_name in ('?', '<module>') or curr_func_name is None:
curr_func_name = ''
if curr_func_name == info.pydev_func_name:
stop = True
elif step_cmd == CMD_STEP_RETURN:
stop = event == 'return' and stop_frame is frame
elif step_cmd == CMD_RUN_TO_LINE or step_cmd == CMD_SET_NEXT_STATEMENT:
stop = False
if event == 'line' or event == 'exception':
#Yes, we can only act on line events (weird hum?)
#Note: This code is duplicated at pydevd.py
#Acting on exception events after debugger breaks with exception
curr_func_name = frame.f_code.co_name
#global context is set with an empty name
if curr_func_name in ('?', '<module>'):
curr_func_name = ''
if curr_func_name == info.pydev_func_name:
line = info.pydev_next_line
if frame.f_lineno == line:
stop = True
else:
if frame.f_trace is None:
frame.f_trace = self.trace_dispatch
frame.f_lineno = line
frame.f_trace = None
stop = True
else:
stop = False
if django_stop:
frame = suspend_django(self, main_debugger, thread, frame)
if frame:
self.doWaitSuspend(thread, frame, event, arg)
elif stop:
#event is always == line or return at this point
if event == 'line':
self.setSuspend(thread, step_cmd)
self.doWaitSuspend(thread, frame, event, arg)
else: #return event
back = frame.f_back
if back is not None:
#When we get to the pydevd run function, the debugging has actually finished for the main thread
#(note that it can still go on for other threads, but for this one, we just make it finish)
#So, just setting it to None should be OK
base = basename(back.f_code.co_filename)
if base == 'pydevd.py' and back.f_code.co_name == 'run':
back = None
elif base == 'pydevd_traceproperty.py':
# We dont want to trace the return event of pydevd_traceproperty (custom property for debugging)
#if we're in a return, we want it to appear to the user in the previous frame!
return None
if back is not None:
#if we're in a return, we want it to appear to the user in the previous frame!
self.setSuspend(thread, step_cmd)
self.doWaitSuspend(thread, back, event, arg)
else:
#in jython we may not have a back frame
info.pydev_step_stop = None
info.pydev_step_cmd = None
info.pydev_state = STATE_RUN
except:
traceback.print_exc()
info.pydev_step_cmd = None
#if we are quitting, let's stop the tracing
retVal = None
if not main_debugger.quitting:
retVal = self.trace_dispatch
return retVal
finally:
info.is_tracing = False
def trace_dispatch(self, frame, event, arg):
mainDebugger, filename, info, thread = self._args
try:
info.is_tracing = True
if mainDebugger._finishDebuggingSession:
return None
if getattr(thread, 'pydev_do_not_trace', None):
return None
if event == 'call':
sendSignatureCallTrace(mainDebugger, frame, filename)
if event not in ('line', 'call', 'return'):
if event == 'exception':
(flag,
frame) = self.shouldStopOnException(frame, event, arg)
if flag:
self.handle_exception(frame, event, arg)
return self.trace_dispatch
else:
#I believe this can only happen in jython on some frontiers on jython and java code, which we don't want to trace.
return None
if event is not 'exception':
breakpoints_for_file = mainDebugger.breakpoints.get(filename)
can_skip = False
if info.pydev_state == STATE_RUN:
#we can skip if:
#- we have no stop marked
#- we should make a step return/step over and we're not in the current frame
can_skip = (info.pydev_step_cmd is None and info.pydev_step_stop is None)\
or (info.pydev_step_cmd in (CMD_STEP_RETURN, CMD_STEP_OVER) and info.pydev_step_stop is not frame)
if mainDebugger.django_breakpoints:
can_skip = False
# Let's check to see if we are in a function that has a breakpoint. If we don't have a breakpoint,
# we will return nothing for the next trace
#also, after we hit a breakpoint and go to some other debugging state, we have to force the set trace anyway,
#so, that's why the additional checks are there.
if not breakpoints_for_file:
if can_skip:
if mainDebugger.always_exception_set or mainDebugger.django_exception_break:
return self.trace_exception
else:
return None
else:
#checks the breakpoint to see if there is a context match in some function
curr_func_name = frame.f_code.co_name
#global context is set with an empty name
if curr_func_name in ('?', '<module>'):
curr_func_name = ''
for breakpoint in breakpoints_for_file.values(
): #jython does not support itervalues()
#will match either global or some function
if breakpoint.func_name in ('None', curr_func_name):
break
else: # if we had some break, it won't get here (so, that's a context that we want to skip)
if can_skip:
#print 'skipping', frame.f_lineno, info.pydev_state, info.pydev_step_stop, info.pydev_step_cmd
return None
else:
breakpoints_for_file = None
#We may have hit a breakpoint or we are already in step mode. Either way, let's check what we should do in this frame
#print 'NOT skipped', frame.f_lineno, frame.f_code.co_name, event
try:
line = frame.f_lineno
flag = False
if event == 'call' and info.pydev_state != STATE_SUSPEND and mainDebugger.django_breakpoints \
and is_django_render_call(frame):
(flag,
frame) = self.shouldStopOnDjangoBreak(frame, event, arg)
#return is not taken into account for breakpoint hit because we'd have a double-hit in this case
#(one for the line and the other for the return).
if not flag and event != 'return' and info.pydev_state != STATE_SUSPEND and breakpoints_for_file is not None\
and DictContains(breakpoints_for_file, line):
#ok, hit breakpoint, now, we have to discover if it is a conditional breakpoint
# lets do the conditional stuff here
breakpoint = breakpoints_for_file[line]
stop = True
if info.pydev_step_cmd == CMD_STEP_OVER and info.pydev_step_stop is frame and event in (
'line', 'return'):
stop = False #we don't stop on breakpoint if we have to stop by step-over (it will be processed later)
else:
if breakpoint.condition is not None:
try:
val = eval(breakpoint.condition,
frame.f_globals, frame.f_locals)
if not val:
return self.trace_dispatch
except:
pydev_log.info(
'Error while evaluating condition \'%s\': %s\n'
%
(breakpoint.condition, sys.exc_info()[1]))
return self.trace_dispatch
if breakpoint.expression is not None:
try:
try:
val = eval(breakpoint.expression,
frame.f_globals, frame.f_locals)
except:
val = sys.exc_info()[1]
finally:
if val is not None:
thread.additionalInfo.message = val
if stop:
self.setSuspend(thread, CMD_SET_BREAK)
# if thread has a suspend flag, we suspend with a busy wait
if info.pydev_state == STATE_SUSPEND:
self.doWaitSuspend(thread, frame, event, arg)
return self.trace_dispatch
except:
raise
#step handling. We stop when we hit the right frame
try:
django_stop = False
if info.pydev_step_cmd == CMD_STEP_INTO:
stop = event in ('line', 'return')
if is_django_suspended(thread):
#django_stop = event == 'call' and is_django_render_call(frame)
stop = stop and is_django_resolve_call(
frame.f_back
) and not is_django_context_get_call(frame)
if stop:
info.pydev_django_resolve_frame = 1 #we remember that we've go into python code from django rendering frame
elif info.pydev_step_cmd == CMD_STEP_OVER:
if is_django_suspended(thread):
django_stop = event == 'call' and is_django_render_call(
frame)
stop = False
else:
if event == 'return' and info.pydev_django_resolve_frame is not None and is_django_resolve_call(
frame.f_back):
#we return to Django suspend mode and should not stop before django rendering frame
info.pydev_step_stop = info.pydev_django_resolve_frame
info.pydev_django_resolve_frame = None
thread.additionalInfo.suspend_type = DJANGO_SUSPEND
stop = info.pydev_step_stop is frame and event in (
'line', 'return')
elif info.pydev_step_cmd == CMD_SMART_STEP_INTO:
stop = False
if info.pydev_smart_step_stop is frame:
info.pydev_func_name = None
info.pydev_smart_step_stop = None
if event == 'line' or event == 'exception':
curr_func_name = frame.f_code.co_name
#global context is set with an empty name
if curr_func_name in (
'?', '<module>') or curr_func_name is None:
curr_func_name = ''
if curr_func_name == info.pydev_func_name:
stop = True
elif info.pydev_step_cmd == CMD_STEP_RETURN:
stop = event == 'return' and info.pydev_step_stop is frame
elif info.pydev_step_cmd == CMD_RUN_TO_LINE or info.pydev_step_cmd == CMD_SET_NEXT_STATEMENT:
stop = False
if event == 'line' or event == 'exception':
#Yes, we can only act on line events (weird hum?)
#Note: This code is duplicated at pydevd.py
#Acting on exception events after debugger breaks with exception
curr_func_name = frame.f_code.co_name
#global context is set with an empty name
if curr_func_name in ('?', '<module>'):
curr_func_name = ''
if curr_func_name == info.pydev_func_name:
line = info.pydev_next_line
if frame.f_lineno == line:
stop = True
else:
if frame.f_trace is None:
frame.f_trace = self.trace_dispatch
frame.f_lineno = line
frame.f_trace = None
stop = True
else:
stop = False
if django_stop:
frame = suspend_django(self, mainDebugger, thread, frame)
if frame:
self.doWaitSuspend(thread, frame, event, arg)
elif stop:
#event is always == line or return at this point
if event == 'line':
self.setSuspend(thread, info.pydev_step_cmd)
self.doWaitSuspend(thread, frame, event, arg)
else: #return event
back = frame.f_back
if back is not None:
#When we get to the pydevd run function, the debugging has actually finished for the main thread
#(note that it can still go on for other threads, but for this one, we just make it finish)
#So, just setting it to None should be OK
if basename(
back.f_code.co_filename
) == 'pydevd.py' and back.f_code.co_name == 'run':
back = None
if back is not None:
#if we're in a return, we want it to appear to the user in the previous frame!
self.setSuspend(thread, info.pydev_step_cmd)
self.doWaitSuspend(thread, back, event, arg)
else:
#in jython we may not have a back frame
info.pydev_step_stop = None
info.pydev_step_cmd = None
info.pydev_state = STATE_RUN
except:
traceback.print_exc()
info.pydev_step_cmd = None
#if we are quitting, let's stop the tracing
retVal = None
if not mainDebugger.quitting:
retVal = self.trace_dispatch
return retVal
finally:
info.is_tracing = False
def trace_dispatch(self, frame, event, arg):
mainDebugger, filename, info, thread = self._args
try:
info.is_tracing = True
if mainDebugger._finishDebuggingSession:
return None
if getattr(thread, 'pydev_do_not_trace', None):
return None
if event == 'call':
sendSignatureCallTrace(mainDebugger, frame, filename)
if event not in ('line', 'call', 'return'):
if event == 'exception':
(flag, frame) = self.shouldStopOnException(frame, event, arg)
if flag:
self.handle_exception(frame, event, arg)
return self.trace_dispatch
else:
#I believe this can only happen in jython on some frontiers on jython and java code, which we don't want to trace.
return None
if event is not 'exception':
breakpoints_for_file = mainDebugger.breakpoints.get(filename)
can_skip = False
if info.pydev_state == STATE_RUN:
#we can skip if:
#- we have no stop marked
#- we should make a step return/step over and we're not in the current frame
can_skip = (info.pydev_step_cmd is None and info.pydev_step_stop is None)\
or (info.pydev_step_cmd in (CMD_STEP_RETURN, CMD_STEP_OVER) and info.pydev_step_stop is not frame)
if mainDebugger.django_breakpoints:
can_skip = False
# Let's check to see if we are in a function that has a breakpoint. If we don't have a breakpoint,
# we will return nothing for the next trace
#also, after we hit a breakpoint and go to some other debugging state, we have to force the set trace anyway,
#so, that's why the additional checks are there.
if not breakpoints_for_file:
if can_skip:
if mainDebugger.always_exception_set or mainDebugger.django_exception_break:
return self.trace_exception
else:
return None
else:
#checks the breakpoint to see if there is a context match in some function
curr_func_name = frame.f_code.co_name
#global context is set with an empty name
if curr_func_name in ('?', '<module>'):
curr_func_name = ''
for breakpoint in breakpoints_for_file.values(): #jython does not support itervalues()
#will match either global or some function
if breakpoint.func_name in ('None', curr_func_name):
break
else: # if we had some break, it won't get here (so, that's a context that we want to skip)
if can_skip:
#print 'skipping', frame.f_lineno, info.pydev_state, info.pydev_step_stop, info.pydev_step_cmd
return None
else:
breakpoints_for_file = None
#We may have hit a breakpoint or we are already in step mode. Either way, let's check what we should do in this frame
#print 'NOT skipped', frame.f_lineno, frame.f_code.co_name, event
try:
line = frame.f_lineno
flag = False
if event == 'call' and info.pydev_state != STATE_SUSPEND and mainDebugger.django_breakpoints \
and is_django_render_call(frame):
(flag, frame) = self.shouldStopOnDjangoBreak(frame, event, arg)
#return is not taken into account for breakpoint hit because we'd have a double-hit in this case
#(one for the line and the other for the return).
if not flag and event != 'return' and info.pydev_state != STATE_SUSPEND and breakpoints_for_file is not None\
and DictContains(breakpoints_for_file, line):
#ok, hit breakpoint, now, we have to discover if it is a conditional breakpoint
# lets do the conditional stuff here
breakpoint = breakpoints_for_file[line]
stop = True
if info.pydev_step_cmd == CMD_STEP_OVER and info.pydev_step_stop is frame and event in ('line', 'return'):
stop = False #we don't stop on breakpoint if we have to stop by step-over (it will be processed later)
else:
if breakpoint.condition is not None:
try:
val = eval(breakpoint.condition, frame.f_globals, frame.f_locals)
if not val:
return self.trace_dispatch
except:
pydev_log.info('Error while evaluating condition \'%s\': %s\n' % (breakpoint.condition, sys.exc_info()[1]))
return self.trace_dispatch
if breakpoint.expression is not None:
try:
try:
val = eval(breakpoint.expression, frame.f_globals, frame.f_locals)
except:
val = sys.exc_info()[1]
finally:
if val is not None:
thread.additionalInfo.message = val
if stop:
self.setSuspend(thread, CMD_SET_BREAK)
# if thread has a suspend flag, we suspend with a busy wait
if info.pydev_state == STATE_SUSPEND:
self.doWaitSuspend(thread, frame, event, arg)
return self.trace_dispatch
except:
traceback.print_exc()
raise
#step handling. We stop when we hit the right frame
try:
django_stop = False
if info.pydev_step_cmd == CMD_STEP_INTO:
stop = event in ('line', 'return')
if is_django_suspended(thread):
#django_stop = event == 'call' and is_django_render_call(frame)
stop = stop and is_django_resolve_call(frame.f_back) and not is_django_context_get_call(frame)
if stop:
info.pydev_django_resolve_frame = 1 #we remember that we've go into python code from django rendering frame
elif info.pydev_step_cmd == CMD_STEP_OVER:
if is_django_suspended(thread):
django_stop = event == 'call' and is_django_render_call(frame)
stop = False
else:
if event == 'return' and info.pydev_django_resolve_frame is not None and is_django_resolve_call(frame.f_back):
#we return to Django suspend mode and should not stop before django rendering frame
info.pydev_step_stop = info.pydev_django_resolve_frame
info.pydev_django_resolve_frame = None
thread.additionalInfo.suspend_type = DJANGO_SUSPEND
stop = info.pydev_step_stop is frame and event in ('line', 'return')
elif info.pydev_step_cmd == CMD_SMART_STEP_INTO:
stop = False
if info.pydev_smart_step_stop is frame:
info.pydev_func_name = None
info.pydev_smart_step_stop = None
if event == 'line' or event == 'exception':
curr_func_name = frame.f_code.co_name
#global context is set with an empty name
if curr_func_name in ('?', '<module>') or curr_func_name is None:
curr_func_name = ''
if curr_func_name == info.pydev_func_name:
stop = True
elif info.pydev_step_cmd == CMD_STEP_RETURN:
stop = event == 'return' and info.pydev_step_stop is frame
elif info.pydev_step_cmd == CMD_RUN_TO_LINE or info.pydev_step_cmd == CMD_SET_NEXT_STATEMENT:
stop = False
if event == 'line' or event == 'exception':
#Yes, we can only act on line events (weird hum?)
#Note: This code is duplicated at pydevd.py
#Acting on exception events after debugger breaks with exception
curr_func_name = frame.f_code.co_name
#global context is set with an empty name
if curr_func_name in ('?', '<module>'):
curr_func_name = ''
if curr_func_name == info.pydev_func_name:
line = info.pydev_next_line
if frame.f_lineno == line:
stop = True
else:
if frame.f_trace is None:
frame.f_trace = self.trace_dispatch
frame.f_lineno = line
frame.f_trace = None
stop = True
else:
stop = False
if django_stop:
frame = suspend_django(self, mainDebugger, thread, frame)
if frame:
self.doWaitSuspend(thread, frame, event, arg)
elif stop:
#event is always == line or return at this point
if event == 'line':
self.setSuspend(thread, info.pydev_step_cmd)
self.doWaitSuspend(thread, frame, event, arg)
else: #return event
back = frame.f_back
if back is not None:
#When we get to the pydevd run function, the debugging has actually finished for the main thread
#(note that it can still go on for other threads, but for this one, we just make it finish)
#So, just setting it to None should be OK
if basename(back.f_code.co_filename) == 'pydevd.py' and back.f_code.co_name == 'run':
back = None
if back is not None:
#if we're in a return, we want it to appear to the user in the previous frame!
self.setSuspend(thread, info.pydev_step_cmd)
self.doWaitSuspend(thread, back, event, arg)
else:
#in jython we may not have a back frame
info.pydev_step_stop = None
info.pydev_step_cmd = None
info.pydev_state = STATE_RUN
except:
traceback.print_exc()
info.pydev_step_cmd = None
#if we are quitting, let's stop the tracing
retVal = None
if not mainDebugger.quitting:
retVal = self.trace_dispatch
return retVal
finally:
info.is_tracing = False
def trace_dispatch(self, frame, event, arg):
main_debugger, filename, info, thread = self._args
try:
info.is_tracing = True
if main_debugger._finishDebuggingSession:
return None
if getattr(thread, 'pydev_do_not_trace', None):
return None
if event == 'call':
sendSignatureCallTrace(main_debugger, frame, filename)
is_exception_event = event == 'exception'
has_exception_breakpoints = main_debugger.break_on_caught_exceptions or main_debugger.django_exception_break
if is_exception_event:
if has_exception_breakpoints:
flag, frame = self.should_stop_on_exception(frame, event, arg)
if flag:
self.handle_exception(frame, event, arg)
return self.trace_dispatch
elif event not in ('line', 'call', 'return'):
#I believe this can only happen in jython on some frontiers on jython and java code, which we don't want to trace.
return None
stop_frame = info.pydev_step_stop
step_cmd = info.pydev_step_cmd
if is_exception_event:
breakpoints_for_file = None
else:
# If we are in single step mode and something causes us to exit the current frame, we need to make sure we break
# eventually. Force the step mode to step into and the step stop frame to None.
# I.e.: F6 in the end of a function should stop in the next possible position (instead of forcing the user
# to make a step in or step over at that location).
# Note: this is especially troublesome when we're skipping code with the
# @DontTrace comment.
if stop_frame is frame and event in ('return', 'exception') and step_cmd in (CMD_STEP_RETURN, CMD_STEP_OVER):
info.pydev_step_cmd = CMD_STEP_INTO
info.pydev_step_stop = None
breakpoints_for_file = main_debugger.breakpoints.get(filename)
can_skip = False
if info.pydev_state == STATE_RUN:
#we can skip if:
#- we have no stop marked
#- we should make a step return/step over and we're not in the current frame
can_skip = (step_cmd is None and stop_frame is None)\
or (step_cmd in (CMD_STEP_RETURN, CMD_STEP_OVER) and stop_frame is not frame)
check_stop_on_django_render_call = main_debugger.django_breakpoints and self._is_django_render_call(frame)
if check_stop_on_django_render_call:
can_skip = False
# Let's check to see if we are in a function that has a breakpoint. If we don't have a breakpoint,
# we will return nothing for the next trace
#also, after we hit a breakpoint and go to some other debugging state, we have to force the set trace anyway,
#so, that's why the additional checks are there.
if not breakpoints_for_file:
if can_skip:
if has_exception_breakpoints:
return self.trace_exception
else:
return None
else:
#checks the breakpoint to see if there is a context match in some function
curr_func_name = frame.f_code.co_name
#global context is set with an empty name
if curr_func_name in ('?', '<module>'):
curr_func_name = ''
for breakpoint in DictIterValues(breakpoints_for_file): #jython does not support itervalues()
#will match either global or some function
if breakpoint.func_name in ('None', curr_func_name):
break
else: # if we had some break, it won't get here (so, that's a context that we want to skip)
if can_skip:
if has_exception_breakpoints:
return self.trace_exception
else:
return None
#We may have hit a breakpoint or we are already in step mode. Either way, let's check what we should do in this frame
#print 'NOT skipped', frame.f_lineno, frame.f_code.co_name, event
try:
line = frame.f_lineno
flag = False
if event == 'call' and info.pydev_state != STATE_SUSPEND and check_stop_on_django_render_call:
flag, frame = self.should_stop_on_django_breakpoint(frame, event, arg)
#return is not taken into account for breakpoint hit because we'd have a double-hit in this case
#(one for the line and the other for the return).
if not flag and event != 'return' and info.pydev_state != STATE_SUSPEND and breakpoints_for_file is not None\
and DictContains(breakpoints_for_file, line):
#ok, hit breakpoint, now, we have to discover if it is a conditional breakpoint
# lets do the conditional stuff here
breakpoint = breakpoints_for_file[line]
stop = True
if step_cmd == CMD_STEP_OVER and stop_frame is frame and event in ('line', 'return'):
stop = False #we don't stop on breakpoint if we have to stop by step-over (it will be processed later)
else:
condition = breakpoint.condition
if condition is not None:
try:
val = eval(condition, frame.f_globals, frame.f_locals)
if not val:
return self.trace_dispatch
except:
if type(condition) != type(''):
if hasattr(condition, 'encode'):
condition = condition.encode('utf-8')
msg = 'Error while evaluating expression: %s\n' % (condition,)
sys.stderr.write(msg)
traceback.print_exc()
if not main_debugger.suspend_on_breakpoint_exception:
return self.trace_dispatch
else:
stop = True
try:
additional_info = None
try:
additional_info = thread.additionalInfo
except AttributeError:
pass #that's ok, no info currently set
if additional_info is not None:
# add exception_type and stacktrace into thread additional info
etype, value, tb = sys.exc_info()
try:
error = ''.join(traceback.format_exception_only(etype, value))
stack = traceback.extract_stack(f=tb.tb_frame.f_back)
# On self.setSuspend(thread, CMD_SET_BREAK) this info will be
# sent to the client.
additional_info.conditional_breakpoint_exception = \
('Condition:\n' + condition + '\n\nError:\n' + error, stack)
finally:
etype, value, tb = None, None, None
except:
traceback.print_exc()
if breakpoint.expression is not None:
try:
try:
val = eval(breakpoint.expression, frame.f_globals, frame.f_locals)
except:
val = sys.exc_info()[1]
finally:
if val is not None:
thread.additionalInfo.message = val
if stop:
self.setSuspend(thread, CMD_SET_BREAK)
# if thread has a suspend flag, we suspend with a busy wait
if info.pydev_state == STATE_SUSPEND:
self.doWaitSuspend(thread, frame, event, arg)
return self.trace_dispatch
except:
traceback.print_exc()
raise
#step handling. We stop when we hit the right frame
try:
django_stop = False
should_skip = False
if pydevd_dont_trace.should_trace_hook is not None:
if not hasattr(self, 'should_skip'):
# I.e.: cache the result on self.should_skip (no need to evaluate the same frame multiple times).
# Note that on a code reload, we won't re-evaluate this because in practice, the frame.f_code
# Which will be handled by this frame is read-only, so, we can cache it safely.
should_skip = self.should_skip = not pydevd_dont_trace.should_trace_hook(frame, filename)
else:
should_skip = self.should_skip
if should_skip:
stop = False
elif step_cmd == CMD_STEP_INTO:
stop = event in ('line', 'return')
if is_django_suspended(thread):
#django_stop = event == 'call' and is_django_render_call(frame)
stop = stop and is_django_resolve_call(frame.f_back) and not is_django_context_get_call(frame)
if stop:
info.pydev_django_resolve_frame = 1 #we remember that we've go into python code from django rendering frame
elif step_cmd == CMD_STEP_OVER:
if is_django_suspended(thread):
django_stop = event == 'call' and self._is_django_render_call(frame)
stop = False
else:
if event == 'return' and info.pydev_django_resolve_frame is not None and is_django_resolve_call(frame.f_back):
#we return to Django suspend mode and should not stop before django rendering frame
stop_frame = info.pydev_step_stop = info.pydev_django_resolve_frame
info.pydev_django_resolve_frame = None
thread.additionalInfo.suspend_type = DJANGO_SUSPEND
stop = stop_frame is frame and event in ('line', 'return')
elif step_cmd == CMD_SMART_STEP_INTO:
stop = False
if info.pydev_smart_step_stop is frame:
info.pydev_func_name = None
info.pydev_smart_step_stop = None
if event == 'line' or event == 'exception':
curr_func_name = frame.f_code.co_name
#global context is set with an empty name
if curr_func_name in ('?', '<module>') or curr_func_name is None:
curr_func_name = ''
if curr_func_name == info.pydev_func_name:
stop = True
elif step_cmd == CMD_STEP_RETURN:
stop = event == 'return' and stop_frame is frame
elif step_cmd == CMD_RUN_TO_LINE or step_cmd == CMD_SET_NEXT_STATEMENT:
stop = False
if event == 'line' or event == 'exception':
#Yes, we can only act on line events (weird hum?)
#Note: This code is duplicated at pydevd.py
#Acting on exception events after debugger breaks with exception
curr_func_name = frame.f_code.co_name
#global context is set with an empty name
if curr_func_name in ('?', '<module>'):
curr_func_name = ''
if curr_func_name == info.pydev_func_name:
line = info.pydev_next_line
if frame.f_lineno == line:
stop = True
else:
if frame.f_trace is None:
frame.f_trace = self.trace_dispatch
frame.f_lineno = line
frame.f_trace = None
stop = True
else:
stop = False
if django_stop:
frame = suspend_django(self, main_debugger, thread, frame)
if frame:
self.doWaitSuspend(thread, frame, event, arg)
elif stop:
#event is always == line or return at this point
if event == 'line':
self.setSuspend(thread, step_cmd)
self.doWaitSuspend(thread, frame, event, arg)
else: #return event
back = frame.f_back
if back is not None:
#When we get to the pydevd run function, the debugging has actually finished for the main thread
#(note that it can still go on for other threads, but for this one, we just make it finish)
#So, just setting it to None should be OK
base = basename(back.f_code.co_filename)
if base == 'pydevd.py' and back.f_code.co_name == 'run':
back = None
elif base == 'pydevd_traceproperty.py':
# We dont want to trace the return event of pydevd_traceproperty (custom property for debugging)
#if we're in a return, we want it to appear to the user in the previous frame!
return None
if back is not None:
#if we're in a return, we want it to appear to the user in the previous frame!
self.setSuspend(thread, step_cmd)
self.doWaitSuspend(thread, back, event, arg)
else:
#in jython we may not have a back frame
info.pydev_step_stop = None
info.pydev_step_cmd = None
info.pydev_state = STATE_RUN
except:
traceback.print_exc()
info.pydev_step_cmd = None
#if we are quitting, let's stop the tracing
retVal = None
if not main_debugger.quitting:
retVal = self.trace_dispatch
return retVal
finally:
info.is_tracing = False
