def ctypes2lltype(T, cobj):
"""Convert the ctypes object 'cobj' to its lltype equivalent.
'T' is the expected lltype type.
"""
if isinstance(T, lltype.Ptr):
if not cobj: # NULL pointer
return lltype.nullptr(T.TO)
if isinstance(T.TO, lltype.Struct):
if T.TO._arrayfld is not None:
lgt = getattr(cobj.contents, T.TO._arrayfld).length
container = lltype._struct(T.TO, lgt)
else:
container = lltype._struct(T.TO)
struct_use_ctypes_storage(container, cobj.contents)
elif isinstance(T.TO, lltype.Array):
if T.TO._hints.get('nolength', False):
container = _array_of_unknown_length(T.TO)
container._storage = cobj.contents
else:
raise NotImplementedError("array with an explicit length")
elif isinstance(T.TO, lltype.FuncType):
_callable = get_ctypes_trampoline(T.TO, cobj)
return lltype.functionptr(T.TO,
getattr(cobj, '__name__', '?'),
_callable=_callable)
elif isinstance(T.TO, lltype.OpaqueType):
container = lltype._opaque(T.TO)
else:
raise NotImplementedError(T)
llobj = lltype._ptr(T, container, solid=True)
elif T is lltype.Char:
llobj = chr(cobj)
elif T is lltype.UniChar:
llobj = unichr(cobj)
elif T is lltype.Signed:
llobj = cobj
elif T is lltype.SingleFloat:
if isinstance(cobj, ctypes.c_float):
cobj = cobj.value
llobj = r_singlefloat(cobj)
else:
from pypy.rpython.lltypesystem import rffi
try:
inttype = rffi.platform.numbertype_to_rclass[T]
except KeyError:
llobj = cobj
else:
llobj = inttype(cobj)
assert lltype.typeOf(llobj) == T
return llobj
def ctypes2lltype(T, cobj):
"""Convert the ctypes object 'cobj' to its lltype equivalent.
'T' is the expected lltype type.
"""
if isinstance(T, lltype.Ptr):
if not cobj: # NULL pointer
return lltype.nullptr(T.TO)
if isinstance(T.TO, lltype.Struct):
if T.TO._arrayfld is not None:
raise NotImplementedError("XXX var-sized structs")
container = lltype._struct(T.TO)
struct_use_ctypes_storage(container, cobj.contents)
elif isinstance(T.TO, lltype.Array):
if T.TO._hints.get('nolength', False):
container = _array_of_unknown_length(T.TO)
container._storage = cobj.contents
else:
raise NotImplementedError("array with an explicit length")
elif isinstance(T.TO, lltype.FuncType):
_callable = get_ctypes_trampoline(T.TO, cobj)
return lltype.functionptr(T.TO, getattr(cobj, '__name__', '?'),
_callable=_callable)
elif isinstance(T.TO, lltype.OpaqueType):
container = lltype._opaque(T.TO)
else:
raise NotImplementedError(T)
llobj = lltype._ptr(T, container, solid=True)
elif T is lltype.Char:
llobj = chr(cobj)
elif T is lltype.UniChar:
llobj = unichr(cobj)
elif T is lltype.Signed:
llobj = cobj
elif T is lltype.SingleFloat:
if isinstance(cobj, ctypes.c_float):
cobj = cobj.value
llobj = r_singlefloat(cobj)
else:
from pypy.rpython.lltypesystem import rffi
try:
inttype = rffi.platform.numbertype_to_rclass[T]
except KeyError:
llobj = cobj
else:
llobj = inttype(cobj)
assert lltype.typeOf(llobj) == T
return llobj
def ctypes2lltype(T, cobj):
"""Convert the ctypes object 'cobj' to its lltype equivalent.
'T' is the expected lltype type.
"""
if T is lltype.Void:
return None
if isinstance(T, lltype.Typedef):
T = T.OF
if isinstance(T, lltype.Ptr):
ptrval = ctypes.cast(cobj, ctypes.c_void_p).value
if not cobj or not ptrval: # NULL pointer
# CFunctionType.__nonzero__ is broken before Python 2.6
return lltype.nullptr(T.TO)
if isinstance(T.TO, lltype.Struct):
if T.TO._gckind == 'gc' and ptrval & 1: # a tagged pointer
gcref = _opaque_objs[ptrval // 2].hide()
return lltype.cast_opaque_ptr(T, gcref)
REAL_TYPE = T.TO
if T.TO._arrayfld is not None:
carray = getattr(cobj.contents, T.TO._arrayfld)
container = lltype._struct(T.TO, carray.length)
else:
# special treatment of 'OBJECT' subclasses
if get_rtyper() and lltype._castdepth(REAL_TYPE, OBJECT) >= 0:
# figure out the real type of the object
containerheader = lltype._struct(OBJECT)
cobjheader = ctypes.cast(cobj,
get_ctypes_type(lltype.Ptr(OBJECT)))
struct_use_ctypes_storage(containerheader,
cobjheader)
REAL_TYPE = get_rtyper().get_type_for_typeptr(
containerheader.typeptr)
REAL_T = lltype.Ptr(REAL_TYPE)
cobj = ctypes.cast(cobj, get_ctypes_type(REAL_T))
container = lltype._struct(REAL_TYPE)
struct_use_ctypes_storage(container, cobj)
if REAL_TYPE != T.TO:
p = container._as_ptr()
container = lltype.cast_pointer(T, p)._as_obj()
# special treatment of 'OBJECT_VTABLE' subclasses
if get_rtyper() and lltype._castdepth(REAL_TYPE,
OBJECT_VTABLE) >= 0:
# figure out the real object that this vtable points to,
# and just return that
p = get_rtyper().get_real_typeptr_for_typeptr(
container._as_ptr())
container = lltype.cast_pointer(T, p)._as_obj()
elif isinstance(T.TO, lltype.Array):
if T.TO._hints.get('nolength', False):
container = _array_of_unknown_length(T.TO)
container._storage = type(cobj)(cobj.contents)
else:
container = _array_of_known_length(T.TO)
container._storage = type(cobj)(cobj.contents)
elif isinstance(T.TO, lltype.FuncType):
cobjkey = intmask(ctypes.cast(cobj, ctypes.c_void_p).value)
if cobjkey in _int2obj:
container = _int2obj[cobjkey]
else:
_callable = get_ctypes_trampoline(T.TO, cobj)
return lltype.functionptr(T.TO, getattr(cobj, '__name__', '?'),
_callable=_callable)
elif isinstance(T.TO, lltype.OpaqueType):
if T == llmemory.GCREF:
container = _llgcopaque(cobj)
else:
container = lltype._opaque(T.TO)
cbuf = ctypes.cast(cobj, ctypes.c_void_p)
add_storage(container, _parentable_mixin, cbuf)
else:
raise NotImplementedError(T)
llobj = lltype._ptr(T, container, solid=True)
elif T is llmemory.Address:
if cobj is None:
llobj = llmemory.NULL
else:
llobj = _lladdress(cobj)
elif T is lltype.Char:
llobj = chr(cobj)
elif T is lltype.UniChar:
try:
llobj = unichr(cobj)
except (ValueError, OverflowError):
for tc in 'HIL':
if array(tc).itemsize == array('u').itemsize:
import struct
cobj &= 256 ** struct.calcsize(tc) - 1
llobj = array('u', array(tc, (cobj,)).tostring())[0]
break
else:
raise
elif T is lltype.Signed:
llobj = cobj
elif T is lltype.Bool:
assert cobj == True or cobj == False # 0 and 1 work too
llobj = bool(cobj)
elif T is lltype.SingleFloat:
if isinstance(cobj, ctypes.c_float):
cobj = cobj.value
llobj = r_singlefloat(cobj)
elif T is lltype.LongFloat:
if isinstance(cobj, ctypes.c_longdouble):
cobj = cobj.value
llobj = r_longfloat(cobj)
elif T is lltype.Void:
llobj = cobj
else:
from pypy.rpython.lltypesystem import rffi
try:
inttype = rffi.platform.numbertype_to_rclass[T]
except KeyError:
llobj = cobj
else:
llobj = inttype(cobj)
assert lltype.typeOf(llobj) == T
return llobj
def ctypes2lltype(T, cobj):
"""Convert the ctypes object 'cobj' to its lltype equivalent.
'T' is the expected lltype type.
"""
if T is lltype.Void:
return None
if isinstance(T, lltype.Ptr):
if not cobj: # NULL pointer
return lltype.nullptr(T.TO)
if T is base_ptr_lltype():
return _opaque_list[ctypes.cast(cobj, ctypes.c_void_p).value]
if isinstance(T.TO, lltype.Struct):
if T.TO._arrayfld is not None:
carray = getattr(cobj.contents, T.TO._arrayfld)
container = lltype._struct(T.TO, carray.length)
else:
# special treatment of 'OBJECT' subclasses
if get_rtyper() and lltype._castdepth(T.TO, OBJECT) > 0:
ctypes_object = get_ctypes_type(lltype.Ptr(OBJECT))
as_obj = ctypes2lltype(lltype.Ptr(OBJECT),
ctypes.cast(cobj, ctypes_object))
TObj = get_rtyper().get_type_for_typeptr(as_obj.typeptr)
if TObj != T.TO:
ctypes_instance = get_ctypes_type(lltype.Ptr(TObj))
return lltype.cast_pointer(T,
ctypes2lltype(lltype.Ptr(TObj),
ctypes.cast(cobj, ctypes_instance)))
container = lltype._struct(T.TO)
struct_use_ctypes_storage(container, cobj.contents)
elif isinstance(T.TO, lltype.Array):
if T.TO._hints.get('nolength', False):
container = _array_of_unknown_length(T.TO)
container._storage = cobj.contents
else:
container = _array_of_known_length(T.TO)
container._storage = cobj.contents
elif isinstance(T.TO, lltype.FuncType):
cobjkey = ctypes.cast(cobj, ctypes.c_void_p).value
if cobjkey in _callback2obj:
container = _callback2obj[cobjkey]
else:
_callable = get_ctypes_trampoline(T.TO, cobj)
return lltype.functionptr(T.TO, getattr(cobj, '__name__', '?'),
_callable=_callable)
elif isinstance(T.TO, lltype.OpaqueType):
if T == llmemory.GCREF:
# XXX obscure hack
return _llgcref(cobj)
else:
container = lltype._opaque(T.TO)
else:
raise NotImplementedError(T)
llobj = lltype._ptr(T, container, solid=True)
elif T is llmemory.Address:
if cobj is None:
llobj = llmemory.NULL
else:
llobj = _lladdress(cobj)
elif T is lltype.Char:
llobj = chr(cobj)
elif T is lltype.UniChar:
llobj = unichr(cobj)
elif T is lltype.Signed:
llobj = cobj
elif T is lltype.SingleFloat:
if isinstance(cobj, ctypes.c_float):
cobj = cobj.value
llobj = r_singlefloat(cobj)
elif T is lltype.Void:
llobj = cobj
else:
from pypy.rpython.lltypesystem import rffi
try:
inttype = rffi.platform.numbertype_to_rclass[T]
except KeyError:
llobj = cobj
else:
llobj = inttype(cobj)
assert lltype.typeOf(llobj) == T
return llobj
def ctypes2lltype(T, cobj):
"""Convert the ctypes object 'cobj' to its lltype equivalent.
'T' is the expected lltype type.
"""
if T is lltype.Void:
return None
if isinstance(T, lltype.Ptr):
if not cobj: # NULL pointer
return lltype.nullptr(T.TO)
if isinstance(T.TO, lltype.Struct):
REAL_TYPE = T.TO
if T.TO._arrayfld is not None:
carray = getattr(cobj.contents, T.TO._arrayfld)
container = lltype._struct(T.TO, carray.length)
else:
# special treatment of 'OBJECT' subclasses
if get_rtyper() and lltype._castdepth(REAL_TYPE, OBJECT) >= 0:
# figure out the real type of the object
containerheader = lltype._struct(OBJECT)
cobjheader = ctypes.cast(
cobj, get_ctypes_type(lltype.Ptr(OBJECT)))
struct_use_ctypes_storage(containerheader,
cobjheader.contents)
REAL_TYPE = get_rtyper().get_type_for_typeptr(
containerheader.typeptr)
REAL_T = lltype.Ptr(REAL_TYPE)
cobj = ctypes.cast(cobj, get_ctypes_type(REAL_T))
container = lltype._struct(REAL_TYPE)
struct_use_ctypes_storage(container, cobj.contents)
if REAL_TYPE != T.TO:
p = container._as_ptr()
container = lltype.cast_pointer(T, p)._as_obj()
# special treatment of 'OBJECT_VTABLE' subclasses
if get_rtyper() and lltype._castdepth(REAL_TYPE,
OBJECT_VTABLE) >= 0:
# figure out the real object that this vtable points to,
# and just return that
p = get_rtyper().get_real_typeptr_for_typeptr(
container._as_ptr())
container = lltype.cast_pointer(T, p)._as_obj()
elif isinstance(T.TO, lltype.Array):
if T.TO._hints.get('nolength', False):
container = _array_of_unknown_length(T.TO)
container._storage = cobj.contents
else:
container = _array_of_known_length(T.TO)
container._storage = cobj.contents
elif isinstance(T.TO, lltype.FuncType):
cobjkey = ctypes.cast(cobj, ctypes.c_void_p).value
if cobjkey in _callback2obj:
container = _callback2obj[cobjkey]
else:
_callable = get_ctypes_trampoline(T.TO, cobj)
return lltype.functionptr(T.TO,
getattr(cobj, '__name__', '?'),
_callable=_callable)
elif isinstance(T.TO, lltype.OpaqueType):
if T == llmemory.GCREF:
container = _llgcopaque(cobj)
else:
container = lltype._opaque(T.TO)
else:
raise NotImplementedError(T)
llobj = lltype._ptr(T, container, solid=True)
elif T is llmemory.Address:
if cobj is None:
llobj = llmemory.NULL
else:
llobj = _lladdress(cobj)
elif T is lltype.Char:
llobj = chr(cobj)
elif T is lltype.UniChar:
llobj = unichr(cobj)
elif T is lltype.Signed:
llobj = cobj
elif T is lltype.Bool:
assert cobj == True or cobj == False # 0 and 1 work too
llobj = bool(cobj)
elif T is lltype.SingleFloat:
if isinstance(cobj, ctypes.c_float):
cobj = cobj.value
llobj = r_singlefloat(cobj)
elif T is lltype.Void:
llobj = cobj
else:
from pypy.rpython.lltypesystem import rffi
try:
inttype = rffi.platform.numbertype_to_rclass[T]
except KeyError:
llobj = cobj
else:
llobj = inttype(cobj)
assert lltype.typeOf(llobj) == T
return llobj
def ctypes2lltype(T, cobj):
"""Convert the ctypes object 'cobj' to its lltype equivalent.
'T' is the expected lltype type.
"""
if T is lltype.Void:
return None
if isinstance(T, lltype.Ptr):
if not cobj: # NULL pointer
return lltype.nullptr(T.TO)
if isinstance(T.TO, lltype.Struct):
REAL_TYPE = T.TO
if T.TO._arrayfld is not None:
carray = getattr(cobj.contents, T.TO._arrayfld)
container = lltype._struct(T.TO, carray.length)
else:
# special treatment of 'OBJECT' subclasses
if get_rtyper() and lltype._castdepth(REAL_TYPE, OBJECT) >= 0:
# figure out the real type of the object
containerheader = lltype._struct(OBJECT)
cobjheader = ctypes.cast(cobj,
get_ctypes_type(lltype.Ptr(OBJECT)))
struct_use_ctypes_storage(containerheader,
cobjheader.contents)
REAL_TYPE = get_rtyper().get_type_for_typeptr(
containerheader.typeptr)
REAL_T = lltype.Ptr(REAL_TYPE)
cobj = ctypes.cast(cobj, get_ctypes_type(REAL_T))
container = lltype._struct(REAL_TYPE)
struct_use_ctypes_storage(container, cobj.contents)
if REAL_TYPE != T.TO:
p = container._as_ptr()
container = lltype.cast_pointer(T, p)._as_obj()
# special treatment of 'OBJECT_VTABLE' subclasses
if get_rtyper() and lltype._castdepth(REAL_TYPE,
OBJECT_VTABLE) >= 0:
# figure out the real object that this vtable points to,
# and just return that
p = get_rtyper().get_real_typeptr_for_typeptr(
container._as_ptr())
container = lltype.cast_pointer(T, p)._as_obj()
elif isinstance(T.TO, lltype.Array):
if T.TO._hints.get('nolength', False):
container = _array_of_unknown_length(T.TO)
container._storage = cobj.contents
else:
container = _array_of_known_length(T.TO)
container._storage = cobj.contents
elif isinstance(T.TO, lltype.FuncType):
cobjkey = ctypes.cast(cobj, ctypes.c_void_p).value
if cobjkey in _callback2obj:
container = _callback2obj[cobjkey]
else:
_callable = get_ctypes_trampoline(T.TO, cobj)
return lltype.functionptr(T.TO, getattr(cobj, '__name__', '?'),
_callable=_callable)
elif isinstance(T.TO, lltype.OpaqueType):
if T == llmemory.GCREF:
container = _llgcopaque(cobj)
else:
container = lltype._opaque(T.TO)
else:
raise NotImplementedError(T)
llobj = lltype._ptr(T, container, solid=True)
elif T is llmemory.Address:
if cobj is None:
llobj = llmemory.NULL
else:
llobj = _lladdress(cobj)
elif T is lltype.Char:
llobj = chr(cobj)
elif T is lltype.UniChar:
llobj = unichr(cobj)
elif T is lltype.Signed:
llobj = cobj
elif T is lltype.Bool:
assert cobj == True or cobj == False # 0 and 1 work too
llobj = bool(cobj)
elif T is lltype.SingleFloat:
if isinstance(cobj, ctypes.c_float):
cobj = cobj.value
llobj = r_singlefloat(cobj)
elif T is lltype.Void:
llobj = cobj
else:
from pypy.rpython.lltypesystem import rffi
try:
inttype = rffi.platform.numbertype_to_rclass[T]
except KeyError:
llobj = cobj
else:
llobj = inttype(cobj)
assert lltype.typeOf(llobj) == T
return llobj
def ctypes2lltype(T, cobj):
"""Convert the ctypes object 'cobj' to its lltype equivalent.
'T' is the expected lltype type.
"""
if T is lltype.Void:
return None
if isinstance(T, lltype.Ptr):
if not cobj: # NULL pointer
return lltype.nullptr(T.TO)
if T is base_ptr_lltype():
return _opaque_list[ctypes.cast(cobj, ctypes.c_void_p).value]
if isinstance(T.TO, lltype.Struct):
if T.TO._arrayfld is not None:
carray = getattr(cobj.contents, T.TO._arrayfld)
container = lltype._struct(T.TO, carray.length)
else:
# special treatment of 'OBJECT' subclasses
if get_rtyper() and lltype._castdepth(T.TO, OBJECT) > 0:
ctypes_object = get_ctypes_type(lltype.Ptr(OBJECT))
as_obj = ctypes2lltype(lltype.Ptr(OBJECT),
ctypes.cast(cobj, ctypes_object))
TObj = get_rtyper().get_type_for_typeptr(as_obj.typeptr)
if TObj != T.TO:
ctypes_instance = get_ctypes_type(lltype.Ptr(TObj))
return lltype.cast_pointer(
T,
ctypes2lltype(lltype.Ptr(TObj),
ctypes.cast(cobj, ctypes_instance)))
container = lltype._struct(T.TO)
struct_use_ctypes_storage(container, cobj.contents)
addr = ctypes.addressof(cobj.contents)
if addr in _parent_cache:
setparentstructure(container, _parent_cache[addr])
elif isinstance(T.TO, lltype.Array):
if T.TO._hints.get('nolength', False):
container = _array_of_unknown_length(T.TO)
container._storage = cobj.contents
else:
container = _array_of_known_length(T.TO)
container._storage = cobj.contents
elif isinstance(T.TO, lltype.FuncType):
cobjkey = ctypes.cast(cobj, ctypes.c_void_p).value
if cobjkey in _callback2obj:
container = _callback2obj[cobjkey]
else:
_callable = get_ctypes_trampoline(T.TO, cobj)
return lltype.functionptr(T.TO,
getattr(cobj, '__name__', '?'),
_callable=_callable)
elif isinstance(T.TO, lltype.OpaqueType):
if T == llmemory.GCREF:
container = _llgcopaque(cobj)
else:
container = lltype._opaque(T.TO)
else:
raise NotImplementedError(T)
llobj = lltype._ptr(T, container, solid=True)
elif T is llmemory.Address:
if cobj is None:
llobj = llmemory.NULL
else:
llobj = _lladdress(cobj)
elif T is lltype.Char:
llobj = chr(cobj)
elif T is lltype.UniChar:
llobj = unichr(cobj)
elif T is lltype.Signed:
llobj = cobj
elif T is lltype.Bool:
assert cobj == True or cobj == False # 0 and 1 work too
llobj = bool(cobj)
elif T is lltype.SingleFloat:
if isinstance(cobj, ctypes.c_float):
cobj = cobj.value
llobj = r_singlefloat(cobj)
elif T is lltype.Void:
llobj = cobj
else:
from pypy.rpython.lltypesystem import rffi
try:
inttype = rffi.platform.numbertype_to_rclass[T]
except KeyError:
llobj = cobj
else:
llobj = inttype(cobj)
assert lltype.typeOf(llobj) == T
return llobj