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from rpython.rtyper.lltypesystem import rffi, lltype
from pypy.module.cpyext.api import (
PyObjectFields, generic_cpy_call, CONST_STRING, CANNOT_FAIL, Py_ssize_t,
cpython_api, bootstrap_function, cpython_struct, build_type_checkers,
slot_function)
from pypy.module.cpyext.pyobject import (
PyObject, make_ref, from_ref, Py_DecRef, make_typedescr)
from pypy.module.cpyext.frameobject import PyFrameObject
from pypy.interpreter.error import OperationError
from pypy.interpreter.pytraceback import PyTraceback
from pypy.interpreter import pycode
PyTracebackObjectStruct = lltype.ForwardReference()
PyTracebackObject = lltype.Ptr(PyTracebackObjectStruct)
PyTracebackObjectFields = PyObjectFields + (
("tb_next", PyTracebackObject),
("tb_frame", PyFrameObject),
("tb_lasti", rffi.INT),
("tb_lineno", rffi.INT),
)
cpython_struct("PyTracebackObject", PyTracebackObjectFields, PyTracebackObjectStruct)
@bootstrap_function
def init_traceback(space):
make_typedescr(PyTraceback.typedef,
basestruct=PyTracebackObject.TO,
attach=traceback_attach,
dealloc=traceback_dealloc)
def traceback_attach(space, py_obj, w_obj, w_userdata=None):
py_traceback = rffi.cast(PyTracebackObject, py_obj)
traceback = space.interp_w(PyTraceback, w_obj)
if traceback.next is None:
w_next_traceback = None
else:
w_next_traceback = traceback.next
py_traceback.c_tb_next = rffi.cast(PyTracebackObject, make_ref(space, w_next_traceback))
py_traceback.c_tb_frame = rffi.cast(PyFrameObject, make_ref(space, traceback.frame))
rffi.setintfield(py_traceback, 'c_tb_lasti', traceback.lasti)
rffi.setintfield(py_traceback, 'c_tb_lineno',traceback.get_lineno())
@slot_function([PyObject], lltype.Void)
def traceback_dealloc(space, py_obj):
py_traceback = rffi.cast(PyTracebackObject, py_obj)
Py_DecRef(space, rffi.cast(PyObject, py_traceback.c_tb_next))
Py_DecRef(space, rffi.cast(PyObject, py_traceback.c_tb_frame))
from pypy.module.cpyext.object import _dealloc
_dealloc(space, py_obj)
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