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from rpython.rtyper.lltypesystem import lltype, rffi
from pypy.module.cpyext.test.test_api import BaseApiTest
from pypy.module.cpyext.pyobject import PyObject, make_ref, from_ref, decref
from pypy.module.cpyext.pytraceback import PyTracebackObject
from pypy.interpreter.pytraceback import PyTraceback
from pypy.interpreter.baseobjspace import AppExecCache
class TestPyTracebackObject(BaseApiTest):
def test_traceback(self, space, api):
src = """():
import sys
try:
1/0
except:
return sys.exc_info()[2]
"""
w_traceback = space.appexec([], src)
py_obj = make_ref(space, w_traceback)
py_traceback = rffi.cast(PyTracebackObject, py_obj)
assert (from_ref(space, rffi.cast(PyObject, py_obj.c_ob_type)) is
space.gettypeobject(PyTraceback.typedef))
traceback = space.interp_w(PyTraceback, w_traceback)
assert traceback.lasti == py_traceback.c_tb_lasti
assert traceback.get_lineno() == py_traceback.c_tb_lineno
assert space.eq_w(space.getattr(w_traceback, space.wrap("tb_lasti")),
space.wrap(py_traceback.c_tb_lasti))
assert space.is_w(space.getattr(w_traceback, space.wrap("tb_frame")),
from_ref(space, rffi.cast(PyObject,
py_traceback.c_tb_frame)))
while not space.is_w(w_traceback, space.w_None):
assert space.is_w(
w_traceback,
from_ref(space, rffi.cast(PyObject, py_traceback)))
w_traceback = space.getattr(w_traceback, space.wrap("tb_next"))
py_traceback = py_traceback.c_tb_next
assert lltype.normalizeptr(py_traceback) is None
decref(space, py_obj)
# hack to allow the code object to be freed
del space.fromcache(AppExecCache).content[src]
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