def test_gc_malloc_unicode(self):
p = self.gc_ll_descr.gc_malloc_unicode(10)
type_id = self.gc_ll_descr.layoutbuilder.get_type_id(rstr.UNICODE)
tid = llop.combine_ushort(lltype.Signed, type_id, 0)
basesize, itemsize, ofs_length = symbolic.get_array_token(
rstr.UNICODE, True)
assert self.llop1.record == [("varsize", tid, 10, repr(basesize),
repr(itemsize), repr(ofs_length), p)]
def test_gc_malloc_unicode(self):
p = self.gc_ll_descr.gc_malloc_unicode(10)
type_id = self.gc_ll_descr.layoutbuilder.get_type_id(rstr.UNICODE)
tid = llop.combine_ushort(lltype.Signed, type_id, 0)
basesize, itemsize, ofs_length = symbolic.get_array_token(rstr.UNICODE,
True)
assert self.llop1.record == [("varsize", tid, 10,
repr(basesize), repr(itemsize),
repr(ofs_length), p)]
class SizeDescr(AbstractDescr):
size = 0 # help translation
tid = llop.combine_ushort(lltype.Signed, 0, 0)
def __init__(self, size, count_fields_if_immut=-1,
gc_fielddescrs=None):
self.size = size
self.count_fields_if_immut = count_fields_if_immut
self.gc_fielddescrs = gc_fielddescrs
def count_fields_if_immutable(self):
return self.count_fields_if_immut
def repr_of_descr(self):
return '<SizeDescr %s>' % self.size
class SizeDescr(AbstractDescr):
size = 0 # help translation
tid = llop.combine_ushort(lltype.Signed, 0, 0)
vtable = lltype.nullptr(rclass.OBJECT_VTABLE)
immutable_flag = False
def __init__(self,
size,
gc_fielddescrs=None,
all_fielddescrs=None,
vtable=lltype.nullptr(rclass.OBJECT_VTABLE),
immutable_flag=False):
assert lltype.typeOf(vtable) == lltype.Ptr(rclass.OBJECT_VTABLE)
self.size = size
self.gc_fielddescrs = gc_fielddescrs
self.all_fielddescrs = all_fielddescrs
self.vtable = vtable
self.immutable_flag = immutable_flag
def get_all_fielddescrs(self):
return self.all_fielddescrs
def repr_of_descr(self):
return '<SizeDescr %s>' % self.size
def is_object(self):
return bool(self.vtable)
def is_valid_class_for(self, struct):
objptr = lltype.cast_opaque_ptr(rclass.OBJECTPTR, struct)
cls = llmemory.cast_adr_to_ptr(heaptracker.int2adr(self.get_vtable()),
lltype.Ptr(rclass.OBJECT_VTABLE))
# this first comparison is necessary, since we want to make sure
# that vtable for JitVirtualRef is the same without actually reading
# fields
return objptr.typeptr == cls or rclass.ll_isinstance(objptr, cls)
def is_immutable(self):
return self.immutable_flag
def get_vtable(self):
return heaptracker.adr2int(llmemory.cast_ptr_to_adr(self.vtable))
def get_type_id(self):
assert self.tid
return self.tid
def init_size_descr(self, S, descr):
if self.layoutbuilder is not None:
type_id = self.layoutbuilder.get_type_id(S)
assert not self.layoutbuilder.is_weakref_type(S)
assert not self.layoutbuilder.has_finalizer(S)
descr.tid = llop.combine_ushort(lltype.Signed, type_id, 0)
def _malloc(self, type_id, size):
tid = llop.combine_ushort(lltype.Signed, type_id, 0)
x = llmemory.raw_malloc(self.gcheaderbuilder.size_gc_header + size)
x += self.gcheaderbuilder.size_gc_header
return x, tid
def get_actual_typeid(self, gcptr):
# Read the whole GC header word. Return the typeid from the
# lower half-word.
hdr = rffi.cast(self.HDRPTR, gcptr)
type_id = llop.extract_ushort(llgroup.HALFWORD, hdr.tid)
return llop.combine_ushort(lltype.Signed, type_id, 0)
def init_array_descr(self, A, descr):
if not isinstance(A, (lltype.GcArray, lltype.GcStruct)):
return
if self.layoutbuilder is not None:
type_id = self.layoutbuilder.get_type_id(A)
descr.tid = llop.combine_ushort(lltype.Signed, type_id, 0)
def init_size_descr(self, S, descr):
if self.layoutbuilder is not None:
type_id = self.layoutbuilder.get_type_id(S)
assert not self.layoutbuilder.is_weakref_type(S)
assert not self.layoutbuilder.has_finalizer(S)
descr.tid = llop.combine_ushort(lltype.Signed, type_id, 0)
def get_actual_typeid(self, gcptr):
# Read the whole GC header word. Return the typeid from the
# lower half-word.
hdr = rffi.cast(self.HDRPTR, gcptr)
type_id = llop.extract_ushort(llgroup.HALFWORD, hdr.tid)
return llop.combine_ushort(lltype.Signed, type_id, 0)
def init_array_descr(self, A, descr):
if not isinstance(A, (lltype.GcArray, lltype.GcStruct)):
return
if self.layoutbuilder is not None:
type_id = self.layoutbuilder.get_type_id(A)
descr.tid = llop.combine_ushort(lltype.Signed, type_id, 0)
def init_size_descr(self, S, descr):
if not isinstance(S, lltype.GcStruct):
return
if self.layoutbuilder is not None:
type_id = self.layoutbuilder.get_type_id(S)
descr.tid = llop.combine_ushort(lltype.Signed, type_id, 0)
def _malloc(self, type_id, size):
tid = llop.combine_ushort(lltype.Signed, type_id, 0)
x = llmemory.raw_malloc(self.gcheaderbuilder.size_gc_header + size)
x += self.gcheaderbuilder.size_gc_header
return x, tid
def combine(self, typeid16, flags):
return llop.combine_ushort(lltype.Signed, typeid16, flags)
def init_array_descr(self, A, descr):
if self.layoutbuilder is not None:
type_id = self.layoutbuilder.get_type_id(A)
descr.tid = llop.combine_ushort(lltype.Signed, type_id, 0)
def init_array_descr(self, A, descr):
if self.layoutbuilder is not None:
type_id = self.layoutbuilder.get_type_id(A)
descr.tid = llop.combine_ushort(lltype.Signed, type_id, 0)
def combine(self, typeid16, flags):
return llop.combine_ushort(lltype.Signed, typeid16, flags)
def init_size_descr(self, S, descr):
if not isinstance(S, lltype.GcStruct):
return
if self.layoutbuilder is not None:
type_id = self.layoutbuilder.get_type_id(S)
descr.tid = llop.combine_ushort(lltype.Signed, type_id, 0)
