def test_delayedptr(self):
FUNCTYPE = lltype.FuncType([], lltype.Signed)
name = "delayed!myfunc"
delayedptr1 = lltype._ptr(lltype.Ptr(FUNCTYPE), name, solid=True)
delayedptr2 = lltype._ptr(lltype.Ptr(FUNCTYPE), name, solid=True)
assert delayedptr1 == delayedptr1
assert delayedptr1 != delayedptr2
assert bool(delayedptr1)
assert delayedptr1 != lltype.nullptr(FUNCTYPE)
def guess_size_obj(obj):
TYPE = typeOf(obj)
ptr = _ptr(Ptr(TYPE), obj)
if TYPE._is_varsize():
arrayfld = getattr(TYPE, '_arrayfld', None)
if arrayfld:
length = len(getattr(ptr, arrayfld))
else:
try:
length = len(ptr)
except TypeError:
if TYPE._hints.get("nolength", False) and hasattr(
obj, "items"):
length = len(obj.items)
else:
print "couldn't find size of", ptr
return 0
else:
length = None
if type(TYPE) is llgroup.GroupType:
return sum(guess_size_obj(m) for m in obj.members)
#print obj, ', length =', length
r = convert_offset_to_int(llmemory.sizeof(TYPE, length))
#print '\tr =', r
return r
def graph2delayed(self, graph, FUNCTYPE=None):
if FUNCTYPE is None:
FUNCTYPE = lltype.ForwardReference()
# obscure hack: embed the name of the function in the string, so
# that the genc database can get it even before the delayedptr
# is really computed
name = "delayed!%s" % (graph.name,)
delayedptr = lltype._ptr(lltype.Ptr(FUNCTYPE), name, solid=True)
self.delayedfuncs.append((delayedptr, graph))
return delayedptr
def graph2delayed(self, graph, FUNCTYPE=None):
if FUNCTYPE is None:
FUNCTYPE = lltype.ForwardReference()
# obscure hack: embed the name of the function in the string, so
# that the genc database can get it even before the delayedptr
# is really computed
name = "delayed!%s" % (graph.name, )
delayedptr = lltype._ptr(lltype.Ptr(FUNCTYPE), name, solid=True)
self.delayedfuncs.append((delayedptr, graph))
return delayedptr
def delayedconst(self, repr, obj):
if repr.is_setup_delayed():
# record the existence of this 'obj' for the bookkeeper - e.g.
# if 'obj' is an instance, this will populate the classdef with
# the prebuilt attribute values of the instance
bk = self.rtyper.annotator.bookkeeper
bk.immutablevalue(obj)
delayedptr = lltype._ptr(repr.lowleveltype, "delayed!")
self.delayedconsts.append((delayedptr, repr, obj))
return delayedptr
else:
return repr.convert_const(obj)
def delayedconst(self, repr, obj):
if repr.is_setup_delayed():
# record the existence of this 'obj' for the bookkeeper - e.g.
# if 'obj' is an instance, this will populate the classdef with
# the prebuilt attribute values of the instance
bk = self.rtyper.annotator.bookkeeper
bk.immutablevalue(obj)
delayedptr = lltype._ptr(repr.lowleveltype, "delayed!")
self.delayedconsts.append((delayedptr, repr, obj))
return delayedptr
else:
return repr.convert_const(obj)
def guess_size_obj(obj):
TYPE = typeOf(obj)
ptr = _ptr(Ptr(TYPE), obj)
if TYPE._is_varsize():
arrayfld = getattr(TYPE, '_arrayfld', None)
if arrayfld:
length = len(getattr(ptr, arrayfld))
else:
try:
length = len(ptr)
except TypeError:
print "couldn't find size of", ptr
return 0
else:
length = None
return convert_offset_to_int(llmemory.sizeof(TYPE, length))
def guess_size_obj(obj):
TYPE = typeOf(obj)
ptr = _ptr(Ptr(TYPE), obj)
if TYPE._is_varsize():
arrayfld = getattr(TYPE, '_arrayfld', None)
if arrayfld:
length = len(getattr(ptr, arrayfld))
else:
try:
length = len(ptr)
except TypeError:
print "couldn't find size of", ptr
return 0
else:
length = None
#print obj, ', length =', length
r = convert_offset_to_int(llmemory.sizeof(TYPE, length))
#print '\tr =', r
return r
def cast_object_to_ptr(PTR, object):
"""NOT_RPYTHON: hack. The object may be disguised as a PTR now.
Limited to casting a given object to a single type.
"""
if hasattr(object, '_freeze_'):
warning("Trying to cast a frozen object to pointer")
if isinstance(PTR, lltype.Ptr):
TO = PTR.TO
else:
TO = PTR
if not hasattr(object, '_carry_around_for_tests'):
if object is None:
return lltype.nullptr(PTR.TO)
assert not hasattr(object, '_TYPE')
object._carry_around_for_tests = True
object._TYPE = TO
else:
assert object._TYPE == TO
#
if isinstance(PTR, lltype.Ptr):
return lltype._ptr(PTR, object, True)
else:
raise NotImplementedError("cast_object_to_ptr(%r, ...)" % PTR)
def cast_object_to_ptr(PTR, object):
"""NOT_RPYTHON: hack. The object may be disguised as a PTR now.
Limited to casting a given object to a single type.
"""
if hasattr(object, '_freeze_'):
warning("Trying to cast a frozen object to pointer")
if isinstance(PTR, lltype.Ptr):
TO = PTR.TO
else:
TO = PTR
if not hasattr(object, '_carry_around_for_tests'):
if object is None:
return lltype.nullptr(PTR.TO)
assert not hasattr(object, '_TYPE')
object._carry_around_for_tests = True
object._TYPE = TO
else:
assert object._TYPE == TO
#
if isinstance(PTR, lltype.Ptr):
return lltype._ptr(PTR, object, True)
else:
raise NotImplementedError("cast_object_to_ptr(%r, ...)" % PTR)
