def get_size_descr(gccache,
STRUCT,
vtable=lltype.nullptr(rclass.OBJECT_VTABLE)):
cache = gccache._cache_size
assert not isinstance(vtable, bool)
try:
return cache[STRUCT]
except KeyError:
size = symbolic.get_size(STRUCT, gccache.translate_support_code)
immutable_flag = heaptracker.is_immutable_struct(STRUCT)
if vtable:
assert heaptracker.has_gcstruct_a_vtable(STRUCT)
else:
assert not heaptracker.has_gcstruct_a_vtable(STRUCT)
sizedescr = SizeDescr(size,
vtable=vtable,
immutable_flag=immutable_flag)
gccache.init_size_descr(STRUCT, sizedescr)
cache[STRUCT] = sizedescr
# XXX do we really need gc_fielddescrs if we also have
# all_fielddescrs and can ask is_pointer_field() on them?
gc_fielddescrs = heaptracker.gc_fielddescrs(gccache, STRUCT)
sizedescr.gc_fielddescrs = gc_fielddescrs
all_fielddescrs = heaptracker.all_fielddescrs(gccache, STRUCT)
sizedescr.all_fielddescrs = all_fielddescrs
return sizedescr
def get_size_descr(gccache, STRUCT, vtable=lltype.nullptr(rclass.OBJECT_VTABLE)):
cache = gccache._cache_size
assert not isinstance(vtable, bool)
try:
return cache[STRUCT]
except KeyError:
size = symbolic.get_size(STRUCT, gccache.translate_support_code)
immutable_flag = heaptracker.is_immutable_struct(STRUCT)
if vtable:
assert heaptracker.has_gcstruct_a_vtable(STRUCT)
else:
assert not heaptracker.has_gcstruct_a_vtable(STRUCT)
sizedescr = SizeDescr(size, vtable=vtable,
immutable_flag=immutable_flag)
gccache.init_size_descr(STRUCT, sizedescr)
cache[STRUCT] = sizedescr
# XXX do we really need gc_fielddescrs if we also have
# all_fielddescrs and can ask is_pointer_field() on them?
gc_fielddescrs = heaptracker.gc_fielddescrs(gccache, STRUCT)
sizedescr.gc_fielddescrs = gc_fielddescrs
all_fielddescrs = heaptracker.all_fielddescrs(gccache, STRUCT)
sizedescr.all_fielddescrs = all_fielddescrs
return sizedescr
def is_immutable(self):
return heaptracker.is_immutable_struct(self.S)
