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from pypy.interpreter.error import OperationError, oefmt
from pypy.interpreter.typedef import TypeDef, GetSetProperty
from rpython.rtyper.lltypesystem import rffi, lltype
from rpython.rlib.rarithmetic import widen
from pypy.module.cpyext.structmemberdefs import *
from pypy.module.cpyext.api import PyObjectP, cpython_api, CONST_STRING
from pypy.module.cpyext.longobject import PyLong_AsLong, PyLong_AsUnsignedLong
from pypy.module.cpyext.pyerrors import PyErr_Occurred
from pypy.module.cpyext.pyobject import PyObject, decref, from_ref, make_ref
from pypy.module.cpyext.unicodeobject import PyUnicode_FromString
from pypy.module.cpyext.floatobject import PyFloat_AsDouble
from pypy.module.cpyext.longobject import (
PyLong_AsLongLong, PyLong_AsUnsignedLongLong, PyLong_AsSsize_t)
from pypy.module.cpyext.typeobjectdefs import PyMemberDef
from rpython.rlib.unroll import unrolling_iterable
from pypy.objspace.std.longobject import W_LongObject
from rpython.rlib.objectmodel import specialize
def convert_bool(space, w_obj):
if space.is_w(w_obj, space.w_False):
return False
if space.is_w(w_obj, space.w_True):
return True
raise oefmt(space.w_TypeError, "attribute value type must be bool")
integer_converters = unrolling_iterable([ # range checking, unsigned
(T_SHORT, rffi.SHORT),
(T_INT, rffi.INT),
(T_LONG, rffi.LONG),
(T_USHORT, rffi.USHORT),
(T_UINT, rffi.UINT),
(T_ULONG, rffi.ULONG),
(T_BYTE, rffi.SIGNEDCHAR),
(T_UBYTE, rffi.UCHAR),
(T_BOOL, rffi.UCHAR),
(T_FLOAT, rffi.FLOAT),
(T_DOUBLE, rffi.DOUBLE),
(T_LONGLONG, rffi.LONGLONG),
(T_ULONGLONG, rffi.ULONGLONG),
(T_PYSSIZET, rffi.SSIZE_T),
])
_HEADER = 'pypy_structmember_decl.h'
@cpython_api([CONST_STRING, lltype.Ptr(PyMemberDef)], PyObject, header=_HEADER)
def PyMember_GetOne(space, obj, w_member):
addr = rffi.ptradd(obj, w_member.c_offset)
member_type = rffi.cast(lltype.Signed, w_member.c_type)
for converter in integer_converters:
typ, lltyp = converter
if typ == member_type:
result = rffi.cast(rffi.CArrayPtr(lltyp), addr)
if lltyp is rffi.FLOAT:
w_result = space.newfloat(lltype.cast_primitive(lltype.Float,
result[0]))
elif typ == T_BOOL:
x = rffi.cast(lltype.Signed, result[0])
w_result = space.newbool(x != 0)
elif typ == T_DOUBLE:
w_result = space.newfloat(result[0])
else:
w_result = space.newint(result[0])
return w_result
if member_type == T_STRING:
result = rffi.cast(rffi.CCHARPP, addr)
if result[0]:
w_result = PyUnicode_FromString(space, result[0])
else:
w_result = space.w_None
elif member_type == T_STRING_INPLACE:
result = rffi.cast(rffi.CCHARP, addr)
w_result = PyUnicode_FromString(space, result)
elif member_type == T_CHAR:
result = rffi.cast(rffi.CCHARP, addr)
w_result = space.newtext(result[0])
elif member_type == T_OBJECT:
obj_ptr = rffi.cast(PyObjectP, addr)
if obj_ptr[0]:
w_result = from_ref(space, obj_ptr[0])
else:
w_result = space.w_None
elif member_type == T_OBJECT_EX:
obj_ptr = rffi.cast(PyObjectP, addr)
if obj_ptr[0]:
w_result = from_ref(space, obj_ptr[0])
else:
s = rffi.constcharp2str(w_member.c_name)
w_name = space.newtext(s)
raise OperationError(space.w_AttributeError, w_name)
else:
raise oefmt(space.w_SystemError, "bad memberdescr type")
return w_result
@cpython_api([rffi.CCHARP, lltype.Ptr(PyMemberDef), PyObject], rffi.INT_real,
error=-1, header=_HEADER)
def PyMember_SetOne(space, obj, w_member, w_value):
addr = rffi.ptradd(obj, w_member.c_offset)
member_type = widen(w_member.c_type)
flags = widen(w_member.c_flags)
if flags & READONLY:
raise oefmt(space.w_AttributeError, "readonly attribute")
elif w_value is None:
if member_type == T_OBJECT_EX:
if not rffi.cast(PyObjectP, addr)[0]:
s = rffi.constcharp2str(w_member.c_name)
w_name = space.newtext(s)
raise OperationError(space.w_AttributeError, w_name)
elif member_type != T_OBJECT:
raise oefmt(space.w_TypeError,
"can't delete numeric/char attribute")
if member_type == T_BOOL:
value = convert_bool(space, w_value)
array = rffi.cast(rffi.CArrayPtr(rffi.UCHAR), addr)
casted = rffi.cast(rffi.UCHAR, value)
array[0] = casted
elif member_type == T_BYTE:
value = PyLong_AsLong(space, w_value)
array = rffi.cast(rffi.CArrayPtr(rffi.SIGNEDCHAR), addr)
casted = rffi.cast(rffi.SIGNEDCHAR, value)
if widen(rffi.cast(lltype.typeOf(value), casted)) != widen(value):
space.warn(
space.newtext("Truncation of value to char"),
space.w_RuntimeWarning)
array[0] = casted
elif member_type == T_UBYTE:
value = PyLong_AsLong(space, w_value)
array = rffi.cast(rffi.CArrayPtr(rffi.UCHAR), addr)
casted = rffi.cast(rffi.UCHAR, value)
if widen(rffi.cast(lltype.typeOf(value), casted)) != widen(value):
space.warn(
space.newtext("Truncation of value to unsigned char"),
space.w_RuntimeWarning)
array[0] = casted
elif member_type == T_SHORT:
value = PyLong_AsLong(space, w_value)
array = rffi.cast(rffi.CArrayPtr(rffi.SHORT), addr)
casted = rffi.cast(rffi.SHORT, value)
if widen(rffi.cast(lltype.typeOf(value), casted)) != widen(value):
space.warn(
space.newtext("Truncation of value to short"),
space.w_RuntimeWarning)
array[0] = casted
elif member_type == T_USHORT:
# Does not warn on negative assignment
value = PyLong_AsLong(space, w_value)
array = rffi.cast(rffi.CArrayPtr(rffi.USHORT), addr)
casted = rffi.cast(rffi.USHORT, value)
if widen(rffi.cast(lltype.typeOf(value), casted)) != widen(value):
space.warn(
space.newtext("Truncation of value to unsigned short"),
space.w_RuntimeWarning)
array[0] = casted
elif member_type == T_INT:
w_value = space.index(w_value)
value = PyLong_AsLong(space, w_value)
array = rffi.cast(rffi.CArrayPtr(rffi.INT), addr)
casted = rffi.cast(rffi.INT, value)
if widen(rffi.cast(lltype.typeOf(value), casted)) != widen(value):
space.warn(
space.newtext("Truncation of value to int"),
space.w_RuntimeWarning)
array[0] = casted
elif member_type == T_UINT:
w_value = space.index(w_value)
array = rffi.cast(rffi.CArrayPtr(rffi.UINT), addr)
if space.is_true(space.lt(w_value, space.newint(0))):
value = PyLong_AsLong(space, w_value)
casted = rffi.cast(rffi.UINT, value)
space.warn(
space.newtext("Writing negative value into unsigned field"),
space.w_RuntimeWarning)
else:
value = PyLong_AsUnsignedLong(space, w_value)
casted = rffi.cast(rffi.UINT, value)
if widen(rffi.cast(lltype.typeOf(value), casted)) != widen(value):
space.warn(
space.newtext("Truncation of value to unsigned int"),
space.w_RuntimeWarning)
array[0] = casted
elif member_type == T_LONG:
value = PyLong_AsLong(space, w_value)
array = rffi.cast(rffi.CArrayPtr(rffi.LONG), addr)
casted = rffi.cast(rffi.LONG, value)
array[0] = casted
elif member_type == T_ULONG:
array = rffi.cast(rffi.CArrayPtr(rffi.ULONG), addr)
if space.is_true(space.lt(w_value, space.newint(0))):
value = PyLong_AsLong(space, w_value)
casted = rffi.cast(rffi.ULONG, value)
space.warn(
space.newtext("Writing negative value into unsigned field"),
space.w_RuntimeWarning)
else:
value = PyLong_AsUnsignedLong(space, w_value)
casted = rffi.cast(rffi.ULONG, value)
array[0] = casted
elif member_type == T_PYSSIZET:
value = PyLong_AsSsize_t(space, w_value)
array = rffi.cast(rffi.CArrayPtr(rffi.SSIZE_T), addr)
casted = rffi.cast(rffi.SSIZE_T, value)
array[0] = casted
elif member_type == T_FLOAT:
value = PyFloat_AsDouble(space, w_value)
array = rffi.cast(rffi.CArrayPtr(rffi.FLOAT), addr)
casted = rffi.cast(rffi.FLOAT, value)
array[0] = casted
elif member_type == T_DOUBLE:
value = PyFloat_AsDouble(space, w_value)
array = rffi.cast(rffi.CArrayPtr(rffi.DOUBLE), addr)
casted = rffi.cast(rffi.DOUBLE, value)
array[0] = casted
elif member_type == T_LONGLONG:
value = PyLong_AsLongLong(space, w_value)
array = rffi.cast(rffi.CArrayPtr(rffi.LONGLONG), addr)
casted = rffi.cast(rffi.LONGLONG, value)
array[0] = casted
elif member_type == T_ULONGLONG:
w_value = space.index(w_value)
array = rffi.cast(rffi.CArrayPtr(rffi.ULONGLONG), addr)
if space.is_true(space.lt(w_value, space.newint(0))):
value = PyLong_AsLong(space, w_value)
casted = rffi.cast(rffi.ULONGLONG, value)
space.warn(
space.newtext("Writing negative value into unsigned field"),
space.w_RuntimeWarning)
else:
value = PyLong_AsUnsignedLongLong(space, w_value)
casted = rffi.cast(rffi.ULONGLONG, value)
array[0] = casted
elif member_type == T_CHAR:
str_value = space.text_w(w_value)
if len(str_value) != 1:
raise oefmt(space.w_TypeError, "string of length 1 expected")
array = rffi.cast(rffi.CCHARP, addr)
array[0] = str_value[0]
elif member_type in [T_OBJECT, T_OBJECT_EX]:
array = rffi.cast(PyObjectP, addr)
if array[0]:
decref(space, array[0])
array[0] = make_ref(space, w_value)
elif member_type in [T_STRING, T_STRING_INPLACE]:
raise oefmt(space.w_TypeError, "readonly attribute")
else:
raise oefmt(space.w_SystemError, "bad memberdescr type")
return 0
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