mirror of
https://github.com/python/cpython.git
synced 2024-11-28 16:45:42 +01:00
a474e04388
Co-authored-by: Jacob Bower <jbower@meta.com> Co-authored-by: Carol Willing <carolcode@willingconsulting.com>
95 lines
2.6 KiB
Python
95 lines
2.6 KiB
Python
import linecache
|
|
import reprlib
|
|
import traceback
|
|
|
|
from . import base_futures
|
|
from . import coroutines
|
|
|
|
|
|
def _task_repr_info(task):
|
|
info = base_futures._future_repr_info(task)
|
|
|
|
if task.cancelling() and not task.done():
|
|
# replace status
|
|
info[0] = 'cancelling'
|
|
|
|
info.insert(1, 'name=%r' % task.get_name())
|
|
|
|
if task._fut_waiter is not None:
|
|
info.insert(2, f'wait_for={task._fut_waiter!r}')
|
|
|
|
if task._coro:
|
|
coro = coroutines._format_coroutine(task._coro)
|
|
info.insert(2, f'coro=<{coro}>')
|
|
|
|
return info
|
|
|
|
|
|
@reprlib.recursive_repr()
|
|
def _task_repr(task):
|
|
info = ' '.join(_task_repr_info(task))
|
|
return f'<{task.__class__.__name__} {info}>'
|
|
|
|
|
|
def _task_get_stack(task, limit):
|
|
frames = []
|
|
if hasattr(task._coro, 'cr_frame'):
|
|
# case 1: 'async def' coroutines
|
|
f = task._coro.cr_frame
|
|
elif hasattr(task._coro, 'gi_frame'):
|
|
# case 2: legacy coroutines
|
|
f = task._coro.gi_frame
|
|
elif hasattr(task._coro, 'ag_frame'):
|
|
# case 3: async generators
|
|
f = task._coro.ag_frame
|
|
else:
|
|
# case 4: unknown objects
|
|
f = None
|
|
if f is not None:
|
|
while f is not None:
|
|
if limit is not None:
|
|
if limit <= 0:
|
|
break
|
|
limit -= 1
|
|
frames.append(f)
|
|
f = f.f_back
|
|
frames.reverse()
|
|
elif task._exception is not None:
|
|
tb = task._exception.__traceback__
|
|
while tb is not None:
|
|
if limit is not None:
|
|
if limit <= 0:
|
|
break
|
|
limit -= 1
|
|
frames.append(tb.tb_frame)
|
|
tb = tb.tb_next
|
|
return frames
|
|
|
|
|
|
def _task_print_stack(task, limit, file):
|
|
extracted_list = []
|
|
checked = set()
|
|
for f in task.get_stack(limit=limit):
|
|
lineno = f.f_lineno
|
|
co = f.f_code
|
|
filename = co.co_filename
|
|
name = co.co_name
|
|
if filename not in checked:
|
|
checked.add(filename)
|
|
linecache.checkcache(filename)
|
|
line = linecache.getline(filename, lineno, f.f_globals)
|
|
extracted_list.append((filename, lineno, name, line))
|
|
|
|
exc = task._exception
|
|
if not extracted_list:
|
|
print(f'No stack for {task!r}', file=file)
|
|
elif exc is not None:
|
|
print(f'Traceback for {task!r} (most recent call last):', file=file)
|
|
else:
|
|
print(f'Stack for {task!r} (most recent call last):', file=file)
|
|
|
|
traceback.print_list(extracted_list, file=file)
|
|
if exc is not None:
|
|
for line in traceback.format_exception_only(exc.__class__, exc):
|
|
print(line, file=file, end='')
|