def consider_constant(self, TYPE, value, gc):
if value is not lltype.top_container(value):
return
if value in self.iseen_roots:
return
self.iseen_roots[value] = True
if isinstance(TYPE, lltype.GcOpaqueType):
self.consider_constant(lltype.typeOf(value.container),
value.container, gc)
return
if isinstance(TYPE, (lltype.GcStruct, lltype.GcArray)):
typeid = self.get_type_id(TYPE)
hdr = gc.gcheaderbuilder.new_header(value)
adr = llmemory.cast_ptr_to_adr(hdr)
gc.init_gc_object_immortal(adr, typeid)
self.all_prebuilt_gc.append(value)
# The following collects the addresses of all the fields that have
# a GC Pointer type, inside the current prebuilt object. All such
# fields are potential roots: unless the structure is immutable,
# they could be changed later to point to GC heap objects.
adr = llmemory.cast_ptr_to_adr(value._as_ptr())
if TYPE._gckind == "gc":
if gc.prebuilt_gc_objects_are_static_roots or gc.DEBUG:
appendto = self.addresses_of_static_ptrs
else:
return
else:
appendto = self.addresses_of_static_ptrs_in_nongc
for a in gc_pointers_inside(value, adr, mutable_only=True):
appendto.append(a)
def consider_constant(self, TYPE, value, gc):
if value is not lltype.top_container(value):
return
if value in self.iseen_roots:
return
self.iseen_roots[value] = True
if isinstance(TYPE, lltype.GcOpaqueType):
self.consider_constant(lltype.typeOf(value.container),
value.container, gc)
return
if isinstance(TYPE, (lltype.GcStruct, lltype.GcArray)):
typeid = self.get_type_id(TYPE)
hdr = gc.gcheaderbuilder.new_header(value)
adr = llmemory.cast_ptr_to_adr(hdr)
gc.init_gc_object_immortal(adr, typeid)
self.all_prebuilt_gc.append(value)
# The following collects the addresses of all the fields that have
# a GC Pointer type, inside the current prebuilt object. All such
# fields are potential roots: unless the structure is immutable,
# they could be changed later to point to GC heap objects.
adr = llmemory.cast_ptr_to_adr(value._as_ptr())
if TYPE._gckind == "gc":
if gc.prebuilt_gc_objects_are_static_roots or gc.DEBUG:
appendto = self.addresses_of_static_ptrs
else:
return
else:
appendto = self.addresses_of_static_ptrs_in_nongc
for a in gc_pointers_inside(value, adr, mutable_only=True):
appendto.append(a)
def consider_constant(self, TYPE, value):
if value is not lltype.top_container(value):
return
if isinstance(TYPE, (lltype.GcStruct, lltype.GcArray)):
p = value._as_ptr()
if not self.gcheaderbuilder.get_header(p):
hdr = self.gcheaderbuilder.new_header(p)
hdr.refcount = sys.maxint // 2
def consider_constant(self, TYPE, value):
if value is not lltype.top_container(value):
return
if isinstance(TYPE, (lltype.GcStruct, lltype.GcArray)):
p = value._as_ptr()
if not self.gcheaderbuilder.get_header(p):
hdr = self.gcheaderbuilder.new_header(p)
hdr.refcount = sys.maxint // 2
hdr.hash = lltype.identityhash_nocache(p)
def gcheader_initdata(self, obj):
top = lltype.top_container(obj)
return self.gcheaderbuilder.header_of_object(top)._obj
def common_gcheader_initdata(self, defnode):
o = top_container(defnode.obj)
needs_hash = self.get_prebuilt_hash(o) is not None
hdr = defnode.db.gctransformer.gc_header_for(o, needs_hash)
return hdr._obj
def common_gcheader_initdata(self, defnode):
if defnode.db.gctransformer is not None:
gct = defnode.db.gctransformer
top = top_container(defnode.obj)
return gct.gcheaderbuilder.header_of_object(top)._obj
return None
def gcheader_initdata(self, obj):
top = lltype.top_container(obj)
return self.gcheaderbuilder.header_of_object(top)._obj
def common_gcheader_initdata(self, defnode):
o = top_container(defnode.obj)
needs_hash = self.get_prebuilt_hash(o) is not None
hdr = defnode.db.gctransformer.gc_header_for(o, needs_hash)
return hdr._obj
def common_gcheader_initdata(self, defnode):
if defnode.db.gctransformer is not None:
gct = defnode.db.gctransformer
top = top_container(defnode.obj)
return gct.gcheaderbuilder.header_of_object(top)._obj
return None