def from_memory(self, space, w_obj, w_pycppclass, offset):
# returned as a long value for the address (INTPTR_T is not proper
# per se, but rffi does not come with a PTRDIFF_T)
address = self._get_raw_address(space, w_obj, offset)
ptrval = rffi.cast(rffi.ULONG, rffi.cast(rffi.VOIDPP, address)[0])
if ptrval == 0:
from pypy.module._cppyy import interp_cppyy
return interp_cppyy.get_nullptr(space)
arr = space.interp_w(W_Array, letter2tp(space, 'P'))
return arr.fromaddress(space, ptrval, sys.maxint)
def execute(self, space, cppmethod, cppthis, num_args, args):
if hasattr(space, "fake"):
raise NotImplementedError
lresult = capi.c_call_l(space, cppmethod, cppthis, num_args, args)
ptrval = rffi.cast(rffi.ULONG, lresult)
arr = space.interp_w(W_Array, unpack_simple_shape(space, space.newtext(self.typecode)))
if ptrval == 0:
from pypy.module._cppyy import interp_cppyy
return interp_cppyy.get_nullptr(space)
return arr.fromaddress(space, ptrval, sys.maxint)
def from_memory(self, space, w_obj, offset):
# returned as a long value for the address (INTPTR_T is not proper
# per se, but rffi does not come with a PTRDIFF_T)
address = self._get_raw_address(space, w_obj, offset)
ptrval = rffi.cast(rffi.ULONGP, address)[0]
if ptrval == rffi.cast(rffi.ULONG, 0):
from pypy.module._cppyy import interp_cppyy
return interp_cppyy.get_nullptr(space)
shape = letter2tp(space, 'P')
return lowlevelviews.W_LowLevelView(space, shape, sys.maxint/shape.size, ptrval)
def execute(self, space, cppmethod, cppthis, num_args, args):
if hasattr(space, "fake"):
raise NotImplementedError
lresult = capi.c_call_l(space, cppmethod, cppthis, num_args, args)
ptrval = rffi.cast(rffi.ULONG, lresult)
if ptrval == rffi.cast(rffi.ULONG, 0):
from pypy.module._cppyy import interp_cppyy
return interp_cppyy.get_nullptr(space)
shape = letter2tp(space, self.typecode)
return lowlevelviews.W_LowLevelView(space, shape,
sys.maxint / shape.size, ptrval)
def is_nullpointer_specialcase(space, w_obj):
# 0 and nullptr may serve as "NULL"
# integer 0
try:
return space.int_w(w_obj) == 0
except Exception:
pass
# C++-style nullptr
from pypy.module._cppyy import interp_cppyy
return space.is_true(space.is_(w_obj, interp_cppyy.get_nullptr(space)))
def execute(self, space, cppmethod, cppthis, num_args, args):
if hasattr(space, "fake"):
raise NotImplementedError
address = capi.c_call_r(space, cppmethod, cppthis, num_args, args)
ipv = rffi.cast(rffi.UINTPTR_T, address)
if ipv == rffi.cast(rffi.UINTPTR_T, 0):
from pypy.module._cppyy import interp_cppyy
return interp_cppyy.get_nullptr(space)
shape = letter2tp(space, self.typecode)
return lowlevelviews.W_LowLevelView(space, shape,
sys.maxint / shape.size, ipv)
def is_nullpointer_specialcase(space, w_obj):
# 0, None, and nullptr may serve as "NULL", check for any of them
# integer 0
try:
return space.int_w(w_obj) == 0
except Exception:
pass
# None or nullptr
from pypy.module._cppyy import interp_cppyy
return space.is_true(space.is_(w_obj, space.w_None)) or \
space.is_true(space.is_(w_obj, interp_cppyy.get_nullptr(space)))
