def checkfunction(translator):
# make sure that there is a sensible comparison defined on the
# symbolics
bk = translator.annotator.bookkeeper
rtyper = translator.rtyper
base_classdef = bk.getuniqueclassdef(PBase)
base_vtable = rclass.getclassrepr(rtyper, base_classdef).getruntime(CLASSTYPE)
sub3_classdef = bk.getuniqueclassdef(Sub3)
sub3_vtable = rclass.getclassrepr(rtyper, sub3_classdef).getruntime(CLASSTYPE)
assert ll_issubclass(sub3_vtable, base_vtable)
assert not ll_issubclass(base_vtable, sub3_vtable)
def checkfunction(translator):
# make sure that there is a sensible comparison defined on the
# symbolics
bk = translator.annotator.bookkeeper
rtyper = translator.rtyper
base_classdef = bk.getuniqueclassdef(PBase)
base_vtable = rclass.getclassrepr(rtyper,
base_classdef).getruntime()
sub3_classdef = bk.getuniqueclassdef(Sub3)
sub3_vtable = rclass.getclassrepr(rtyper,
sub3_classdef).getruntime()
assert ll_issubclass(sub3_vtable, base_vtable)
assert not ll_issubclass(base_vtable, sub3_vtable)
def initialize_prebuilt_data(self, value, classdef, result):
# then add instance attributes from this level
classrepr = getclassrepr(self.rtyper, self.classdef)
for mangled, (oot, default) in self.lowleveltype._allfields().items():
if oot is ootype.Void:
llattrvalue = None
elif mangled == 'meta':
llattrvalue = classrepr.get_meta_instance()
else:
name = unmangle(mangled, self.rtyper.getconfig())
try:
attrvalue = getattr(value, name)
except AttributeError:
attrvalue = self.classdef.classdesc.read_attribute(
name, None)
if attrvalue is None:
warning("prebuilt instance %r has no attribute %r" %
(value, name))
continue
llattrvalue = self.allfields[
mangled].convert_desc_or_const(attrvalue)
else:
llattrvalue = self.allfields[mangled].convert_const(
attrvalue)
setattr(result, mangled, llattrvalue)
def gettype_from_unboxed(self, llops, vinst, can_be_none=False):
unboxedclass_repr = getclassrepr(self.rtyper, self.unboxedclassdef)
cunboxedcls = inputconst(CLASSTYPE, unboxedclass_repr.getvtable())
if self.is_parent:
# If the lltype of vinst shows that it cannot be a tagged value,
# we can directly read the typeptr. Otherwise, call a helper that
# checks if the tag bit is set in the pointer.
unboxedinstance_repr = getinstancerepr(self.rtyper,
self.unboxedclassdef)
try:
lltype.castable(unboxedinstance_repr.lowleveltype,
vinst.concretetype)
except lltype.InvalidCast:
can_be_tagged = False
else:
can_be_tagged = True
vinst = llops.genop('cast_pointer', [vinst],
resulttype=self.common_repr())
if can_be_tagged:
if can_be_none:
func = ll_unboxed_getclass_canbenone
else:
func = ll_unboxed_getclass
return llops.gendirectcall(func, vinst,
cunboxedcls)
elif can_be_none:
return llops.gendirectcall(ll_inst_type, vinst)
else:
ctypeptr = inputconst(lltype.Void, 'typeptr')
return llops.genop('getfield', [vinst, ctypeptr],
resulttype = CLASSTYPE)
else:
return cunboxedcls
def __init__(self, rtyper, classdef):
AbstractClassRepr.__init__(self, rtyper, classdef)
# This is the Repr for a reference to the class 'classdef' or
# any subclass. In the simple case, the lowleveltype is just
# ootype.Class. If we need to store class attributes, we use a
# "meta" class where the attributes are defined, and the class
# reference is a reference to an instance of this meta class.
extra_access_sets = self.rtyper.class_pbc_attributes.get(
classdef, {})
has_class_attributes = bool(extra_access_sets)
if self.classdef is not None:
self.rbase = getclassrepr(self.rtyper, self.classdef.basedef)
meta_base_type = self.rbase.lowleveltype
baseclass_has_meta = meta_base_type != ootype.Class
else:
baseclass_has_meta = False
if not has_class_attributes and not baseclass_has_meta:
self.lowleveltype = ootype.Class # simple case
else:
if self.classdef is None:
raise TyperError("the root 'object' class should not have"
" class attributes")
if self.classdef.classdesc.pyobj in standardexceptions:
raise TyperError("Standard exception class %r should not have"
" class attributes" % (self.classdef.name,))
if not baseclass_has_meta:
meta_base_type = META
self.lowleveltype = ootype.Instance(
self.classdef.name + "_meta", meta_base_type)
def initialize_prebuilt_instance(self, value, classdef, result):
if self.classdef is not None:
# recursively build the parent part of the instance
self.rbase.initialize_prebuilt_instance(value, classdef,
result.super)
# then add instance attributes from this level
for name, (mangled_name, r) in self.fields.items():
if r.lowleveltype is Void:
llattrvalue = None
elif name == '_hash_cache_': # hash() support
llattrvalue = hash(value)
else:
try:
attrvalue = getattr(value, name)
except AttributeError:
attrvalue = self.classdef.classdesc.read_attribute(name, None)
if attrvalue is None:
warning("prebuilt instance %r has no attribute %r" % (
value, name))
llattrvalue = r.lowleveltype._defl()
else:
llattrvalue = r.convert_desc_or_const(attrvalue)
else:
llattrvalue = r.convert_const(attrvalue)
setattr(result, mangled_name, llattrvalue)
else:
# OBJECT part
rclass = getclassrepr(self.rtyper, classdef)
result.typeptr = rclass.getvtable()
def new_instance(self, llops, classcallhop=None):
"""Build a new instance, without calling __init__."""
classrepr = getclassrepr(self.rtyper, self.classdef)
v_instance = llops.genop("new",
[inputconst(ootype.Void, self.lowleveltype)],
self.lowleveltype)
return v_instance
def gettype_from_unboxed(self, llops, vinst):
unboxedclass_repr = getclassrepr(self.rtyper, self.unboxedclassdef)
cunboxedcls = inputconst(CLASSTYPE, unboxedclass_repr.getvtable())
if self.is_parent:
# If the lltype of vinst shows that it cannot be a tagged value,
# we can directly read the typeptr. Otherwise, call a helper that
# checks if the tag bit is set in the pointer.
unboxedinstance_repr = getinstancerepr(self.rtyper,
self.unboxedclassdef)
try:
lltype.castable(unboxedinstance_repr.lowleveltype,
vinst.concretetype)
except lltype.InvalidCast:
can_be_tagged = False
else:
can_be_tagged = True
vinst = llops.genop('cast_pointer', [vinst],
resulttype=self.common_repr())
if can_be_tagged:
return llops.gendirectcall(ll_unboxed_getclass, vinst,
cunboxedcls)
else:
ctypeptr = inputconst(lltype.Void, 'typeptr')
return llops.genop('getfield', [vinst, ctypeptr],
resulttype=CLASSTYPE)
else:
return cunboxedcls
def __init__(self, rtyper, classdef):
AbstractClassRepr.__init__(self, rtyper, classdef)
# This is the Repr for a reference to the class 'classdef' or
# any subclass. In the simple case, the lowleveltype is just
# ootype.Class. If we need to store class attributes, we use a
# "meta" class where the attributes are defined, and the class
# reference is a reference to an instance of this meta class.
extra_access_sets = self.rtyper.class_pbc_attributes.get(classdef, {})
has_class_attributes = bool(extra_access_sets)
if self.classdef is not None:
self.rbase = getclassrepr(self.rtyper, self.classdef.basedef)
meta_base_type = self.rbase.lowleveltype
baseclass_has_meta = meta_base_type != ootype.Class
else:
baseclass_has_meta = False
if not has_class_attributes and not baseclass_has_meta:
self.lowleveltype = ootype.Class # simple case
else:
if self.classdef is None:
raise TyperError("the root 'object' class should not have"
" class attributes")
if self.classdef.classdesc.pyobj in standardexceptions:
raise TyperError("Standard exception class %r should not have"
" class attributes" % (self.classdef.name, ))
if not baseclass_has_meta:
meta_base_type = META
self.lowleveltype = ootype.Instance(self.classdef.name + "_meta",
meta_base_type)
def initialize_prebuilt_data(self, value, classdef, result):
if self.classdef is not None:
# recursively build the parent part of the instance
self.rbase.initialize_prebuilt_data(value, classdef, result.super)
# then add instance attributes from this level
for name, (mangled_name, r) in self.fields.items():
if r.lowleveltype is Void:
llattrvalue = None
else:
try:
attrvalue = getattr(value, name)
except AttributeError:
attrvalue = self.classdef.classdesc.read_attribute(
name, None)
if attrvalue is None:
warning(
"prebuilt instance %r has no attribute %r" %
(value, name))
llattrvalue = r.lowleveltype._defl()
else:
llattrvalue = r.convert_desc_or_const(attrvalue)
else:
llattrvalue = r.convert_const(attrvalue)
setattr(result, mangled_name, llattrvalue)
else:
# OBJECT part
rclass = getclassrepr(self.rtyper, classdef)
result.typeptr = rclass.getvtable()
def convert_desc(self, desc):
if desc not in self.s_pbc.descriptions:
raise TyperError("%r not in %r" % (cls, self))
if self.lowleveltype is Void:
return None
subclassdef = desc.getuniqueclassdef()
r_subclass = rclass.getclassrepr(self.rtyper, subclassdef)
return r_subclass.getruntime(self.lowleveltype)
def convert_desc(self, desc):
if desc not in self.s_pbc.descriptions:
raise TyperError("%r not in %r" % (cls, self))
if self.lowleveltype is Void:
return None
subclassdef = desc.getuniqueclassdef()
r_subclass = rclass.getclassrepr(self.rtyper, subclassdef)
return r_subclass.getruntime(self.lowleveltype)
def _setup_repr(self, llfields=None, hints=None, adtmeths=None):
# NOTE: don't store mutable objects like the dicts below on 'self'
# before they are fully built, to avoid strange bugs in case
# of recursion where other code would uses these
# partially-initialized dicts.
self.rclass = getclassrepr(self.rtyper, self.classdef)
fields = {}
allinstancefields = {}
if self.classdef is None:
fields['__class__'] = 'typeptr', get_type_repr(self.rtyper)
else:
# instance attributes
if llfields is None:
llfields = []
attrs = self.classdef.attrs.items()
attrs.sort()
for name, attrdef in attrs:
if not attrdef.readonly:
r = self.rtyper.getrepr(attrdef.s_value)
mangled_name = 'inst_' + name
fields[name] = mangled_name, r
llfields.append((mangled_name, r.lowleveltype))
#
# hash() support
if self.rtyper.needs_hash_support(self.classdef):
from pypy.rpython import rint
fields['_hash_cache_'] = 'hash_cache', rint.signed_repr
llfields.append(('hash_cache', Signed))
self.rbase = getinstancerepr(self.rtyper, self.classdef.basedef,
self.gcflavor)
self.rbase.setup()
#
# PyObject wrapper support
if self.has_wrapper and '_wrapper_' not in self.rbase.allinstancefields:
fields['_wrapper_'] = 'wrapper', pyobj_repr
llfields.append(('wrapper', Ptr(PyObject)))
MkStruct = lltype.STRUCT_BY_FLAVOR[LLFLAVOR[self.gcflavor]]
if adtmeths is None:
adtmeths = {}
if hints is None:
hints = {}
if '_immutable_' in self.classdef.classdesc.classdict:
hints = hints.copy()
hints['immutable'] = True
object_type = MkStruct(self.classdef.name,
('super', self.rbase.object_type),
hints=hints,
adtmeths=adtmeths,
*llfields)
self.object_type.become(object_type)
allinstancefields.update(self.rbase.allinstancefields)
allinstancefields.update(fields)
self.fields = fields
self.allinstancefields = allinstancefields
if self.gcflavor in RTTIFLAVORS:
attachRuntimeTypeInfo(self.object_type)
def specialize_call(self, hop):
from pypy.rpython.rclass import getclassrepr
from pypy.objspace.flow.model import Constant
from pypy.rpython.lltypesystem import rclass
Class = hop.args_s[0].const
classdef = hop.rtyper.annotator.bookkeeper.getuniqueclassdef(Class)
classrepr = getclassrepr(hop.rtyper, classdef)
vtable = classrepr.getvtable()
assert lltype.typeOf(vtable) == rclass.CLASSTYPE
return Constant(vtable, concretetype=rclass.CLASSTYPE)
def new_instance(self, llops, classcallhop=None):
"""Build a new instance, without calling __init__."""
classrepr = getclassrepr(self.rtyper, self.classdef)
v_instance = llops.genop("new",
[inputconst(ootype.Void, self.lowleveltype)], self.lowleveltype)
cmeta = inputconst(ootype.Void, "meta")
cmeta_instance = inputconst(CLASSTYPE, classrepr.get_meta_instance())
llops.genop("oosetfield", [v_instance, cmeta, cmeta_instance],
resulttype=ootype.Void)
return v_instance
def specialize_call(self, hop):
from pypy.rpython.rclass import getclassrepr
from pypy.objspace.flow.model import Constant
from pypy.rpython.lltypesystem import rclass
Class = hop.args_s[0].const
classdef = hop.rtyper.annotator.bookkeeper.getuniqueclassdef(Class)
classrepr = getclassrepr(hop.rtyper, classdef)
vtable = classrepr.getvtable()
assert lltype.typeOf(vtable) == rclass.CLASSTYPE
return Constant(vtable, concretetype=rclass.CLASSTYPE)
def getlowleveltype(self):
classdescs = list(self.s_pbc.descriptions)
# if any of the classdefs get the lowleveltype ootype.Class,
# we can only pick ootype.Class for us too. Otherwise META.
for classdesc in classdescs:
for classdef in classdesc.getallclassdefs():
r_class = getclassrepr(self.rtyper, classdef)
if r_class.lowleveltype == ootype.Class:
return ootype.Class
else:
return META
def __init__(self, rtyper, classdef):
AbstractClassRepr.__init__(self, rtyper, classdef)
if self.classdef is not None:
self.rbase = getclassrepr(self.rtyper, self.classdef.basedef)
base_type = self.rbase.lowleveltype
self.lowleveltype = ootype.Instance(self.classdef.name + "_meta",
base_type)
else:
# we are ROOT
self.lowleveltype = CLASSTYPE
def __init__(self, rtyper):
self.make_standard_exceptions(rtyper)
# (NB. rclass identifies 'Exception' and 'object')
r_type = rclass.getclassrepr(rtyper, None)
r_instance = rclass.getinstancerepr(rtyper, None)
r_type.setup()
r_instance.setup()
self.r_exception_type = r_type
self.r_exception_value = r_instance
self.lltype_of_exception_type = r_type.lowleveltype
self.lltype_of_exception_value = r_instance.lowleveltype
def __init__(self, rtyper, classdef):
AbstractClassRepr.__init__(self, rtyper, classdef)
if self.classdef is not None:
self.rbase = getclassrepr(self.rtyper, self.classdef.basedef)
base_type = self.rbase.lowleveltype
self.lowleveltype = ootype.Instance(
self.classdef.name + "_meta", base_type)
else:
# we are ROOT
self.lowleveltype = CLASSTYPE
def __init__(self, rtyper):
self.make_standard_exceptions(rtyper)
# (NB. rclass identifies 'Exception' and 'object')
r_type = rclass.getclassrepr(rtyper, None)
r_instance = rclass.getinstancerepr(rtyper, None)
r_type.setup()
r_instance.setup()
self.r_exception_type = r_type
self.r_exception_value = r_instance
self.lltype_of_exception_type = r_type.lowleveltype
self.lltype_of_exception_value = r_instance.lowleveltype
def new_instance(self, llops, classcallhop=None):
"""Build a new instance, without calling __init__."""
classrepr = getclassrepr(self.rtyper, self.classdef)
v_instance = llops.genop("new",
[inputconst(ootype.Void, self.lowleveltype)],
self.lowleveltype)
cmeta = inputconst(ootype.Void, "meta")
cmeta_instance = inputconst(CLASSTYPE, classrepr.get_meta_instance())
llops.genop("oosetfield", [v_instance, cmeta, cmeta_instance],
resulttype=ootype.Void)
return v_instance
def _setup_repr(self, llfields=None, hints=None, adtmeths=None):
# NOTE: don't store mutable objects like the dicts below on 'self'
# before they are fully built, to avoid strange bugs in case
# of recursion where other code would uses these
# partially-initialized dicts.
self.rclass = getclassrepr(self.rtyper, self.classdef)
fields = {}
allinstancefields = {}
if self.classdef is None:
fields['__class__'] = 'typeptr', get_type_repr(self.rtyper)
else:
# instance attributes
if llfields is None:
llfields = []
attrs = self.classdef.attrs.items()
attrs.sort()
for name, attrdef in attrs:
if not attrdef.readonly:
r = self.rtyper.getrepr(attrdef.s_value)
mangled_name = 'inst_' + name
fields[name] = mangled_name, r
llfields.append((mangled_name, r.lowleveltype))
#
# hash() support
if self.rtyper.needs_hash_support(self.classdef):
from pypy.rpython import rint
fields['_hash_cache_'] = 'hash_cache', rint.signed_repr
llfields.append(('hash_cache', Signed))
self.rbase = getinstancerepr(self.rtyper, self.classdef.basedef,
self.gcflavor)
self.rbase.setup()
MkStruct = lltype.STRUCT_BY_FLAVOR[LLFLAVOR[self.gcflavor]]
if adtmeths is None:
adtmeths = {}
if hints is None:
hints = {}
if '_immutable_' in self.classdef.classdesc.classdict:
hints = hints.copy()
hints['immutable'] = True
object_type = MkStruct(self.classdef.name,
('super', self.rbase.object_type),
hints=hints,
adtmeths=adtmeths,
*llfields)
self.object_type.become(object_type)
allinstancefields.update(self.rbase.allinstancefields)
allinstancefields.update(fields)
self.fields = fields
self.allinstancefields = allinstancefields
if self.gcflavor == 'gc':
attachRuntimeTypeInfo(self.object_type)
def get_access_set(self, attrname):
"""Return the ClassAttrFamily corresponding to accesses to 'attrname'
and the ClassRepr of the class which stores this attribute in
its vtable.
"""
classdescs = self.s_pbc.descriptions.keys()
access = classdescs[0].queryattrfamily(attrname)
for classdesc in classdescs[1:]:
access1 = classdesc.queryattrfamily(attrname)
assert access1 is access # XXX not implemented
if access is None:
raise rclass.MissingRTypeAttribute(attrname)
commonbase = access.commonbase
class_repr = rclass.getclassrepr(self.rtyper, commonbase)
return access, class_repr
def get_access_set(self, attrname):
"""Return the ClassAttrFamily corresponding to accesses to 'attrname'
and the ClassRepr of the class which stores this attribute in
its vtable.
"""
classdescs = self.s_pbc.descriptions.keys()
access = classdescs[0].queryattrfamily(attrname)
for classdesc in classdescs[1:]:
access1 = classdesc.queryattrfamily(attrname)
assert access1 is access # XXX not implemented
if access is None:
raise rclass.MissingRTypeAttribute(attrname)
commonbase = access.commonbase
class_repr = rclass.getclassrepr(self.rtyper, commonbase)
return access, class_repr
def _setup_repr(self):
# NOTE: don't store mutable objects like the dicts below on 'self'
# before they are fully built, to avoid strange bugs in case
# of recursion where other code would uses these
# partially-initialized dicts.
clsfields = {}
pbcfields = {}
allmethods = {}
if self.classdef is not None:
# class attributes
llfields = []
attrs = self.classdef.attrs.items()
attrs.sort()
for name, attrdef in attrs:
if attrdef.readonly:
s_value = attrdef.s_value
s_unboundmethod = self.prepare_method(s_value)
if s_unboundmethod is not None:
allmethods[name] = True
s_value = s_unboundmethod
r = self.rtyper.getrepr(s_value)
mangled_name = 'cls_' + name
clsfields[name] = mangled_name, r
llfields.append((mangled_name, r.lowleveltype))
# attributes showing up in getattrs done on the class as a PBC
extra_access_sets = self.rtyper.class_pbc_attributes.get(
self.classdef, {})
for access_set, (attr, counter) in extra_access_sets.items():
r = self.rtyper.getrepr(access_set.s_value)
mangled_name = mangle('pbc%d' % counter, attr)
pbcfields[access_set, attr] = mangled_name, r
llfields.append((mangled_name, r.lowleveltype))
#
self.rbase = getclassrepr(self.rtyper, self.classdef.basedef)
self.rbase.setup()
kwds = {'hints': {'immutable': True}}
vtable_type = Struct('%s_vtable' % self.classdef.name,
('super', self.rbase.vtable_type),
*llfields, **kwds)
self.vtable_type.become(vtable_type)
allmethods.update(self.rbase.allmethods)
self.clsfields = clsfields
self.pbcfields = pbcfields
self.allmethods = allmethods
self.vtable = None
def _setup_repr(self):
# NOTE: don't store mutable objects like the dicts below on 'self'
# before they are fully built, to avoid strange bugs in case
# of recursion where other code would uses these
# partially-initialized dicts.
clsfields = {}
pbcfields = {}
allmethods = {}
if self.classdef is not None:
# class attributes
llfields = []
attrs = self.classdef.attrs.items()
attrs.sort()
for name, attrdef in attrs:
if attrdef.readonly:
s_value = attrdef.s_value
s_unboundmethod = self.prepare_method(s_value)
if s_unboundmethod is not None:
allmethods[name] = True
s_value = s_unboundmethod
r = self.rtyper.getrepr(s_value)
mangled_name = 'cls_' + name
clsfields[name] = mangled_name, r
llfields.append((mangled_name, r.lowleveltype))
# attributes showing up in getattrs done on the class as a PBC
extra_access_sets = self.rtyper.class_pbc_attributes.get(
self.classdef, {})
for access_set, (attr, counter) in extra_access_sets.items():
r = self.rtyper.getrepr(access_set.s_value)
mangled_name = mangle('pbc%d' % counter, attr)
pbcfields[access_set, attr] = mangled_name, r
llfields.append((mangled_name, r.lowleveltype))
#
self.rbase = getclassrepr(self.rtyper, self.classdef.basedef)
self.rbase.setup()
kwds = {'hints': {'immutable': True}}
vtable_type = Struct('%s_vtable' % self.classdef.name,
('super', self.rbase.vtable_type), *llfields,
**kwds)
self.vtable_type.become(vtable_type)
allmethods.update(self.rbase.allmethods)
self.clsfields = clsfields
self.pbcfields = pbcfields
self.allmethods = allmethods
self.vtable = None
def _setup_repr(self, llfields=None, hints=None, adtmeths=None):
# NOTE: don't store mutable objects like the dicts below on 'self'
# before they are fully built, to avoid strange bugs in case
# of recursion where other code would uses these
# partially-initialized dicts.
self.rclass = getclassrepr(self.rtyper, self.classdef)
fields = {}
allinstancefields = {}
if self.classdef is None:
fields['__class__'] = 'typeptr', get_type_repr(self.rtyper)
else:
# instance attributes
if llfields is None:
llfields = []
attrs = self.classdef.attrs.items()
attrs.sort()
for name, attrdef in attrs:
if not attrdef.readonly:
r = self.rtyper.getrepr(attrdef.s_value)
mangled_name = 'inst_' + name
fields[name] = mangled_name, r
llfields.append((mangled_name, r.lowleveltype))
self.rbase = getinstancerepr(self.rtyper, self.classdef.basedef,
self.gcflavor)
self.rbase.setup()
MkStruct = lltype.STRUCT_BY_FLAVOR[LLFLAVOR[self.gcflavor]]
if adtmeths is None:
adtmeths = {}
if hints is None:
hints = {}
hints = self._check_for_immutable_hints(hints)
object_type = MkStruct(self.classdef.name,
('super', self.rbase.object_type),
hints=hints,
adtmeths=adtmeths,
*llfields)
self.object_type.become(object_type)
allinstancefields.update(self.rbase.allinstancefields)
allinstancefields.update(fields)
self.fields = fields
self.allinstancefields = allinstancefields
if self.gcflavor == 'gc':
attachRuntimeTypeInfo(self.object_type)
def initialize_prebuilt_data(self, value, classdef, result):
# then add instance attributes from this level
classrepr = getclassrepr(self.rtyper, self.classdef)
for mangled, (oot, default) in self.lowleveltype._allfields().items():
if oot is ootype.Void:
llattrvalue = None
elif mangled == 'meta':
llattrvalue = classrepr.get_meta_instance()
else:
name = unmangle(mangled, self.rtyper.getconfig())
try:
attrvalue = getattr(value, name)
except AttributeError:
attrvalue = self.classdef.classdesc.read_attribute(name, None)
if attrvalue is None:
warning("prebuilt instance %r has no attribute %r" % (
value, name))
continue
llattrvalue = self.allfields[mangled].convert_desc_or_const(attrvalue)
else:
llattrvalue = self.allfields[mangled].convert_const(attrvalue)
setattr(result, mangled, llattrvalue)
def _setup_repr(self, llfields=None, hints=None):
if hints:
self.lowleveltype._hints.update(hints)
if self.classdef is None:
self.allfields = {}
self.allmethods = {}
self.allclassattributes = {}
self.classattributes = {}
return
if self.baserepr is not None:
allfields = self.baserepr.allfields.copy()
allmethods = self.baserepr.allmethods.copy()
allclassattributes = self.baserepr.allclassattributes.copy()
else:
allfields = {}
allmethods = {}
allclassattributes = {}
fields = {}
fielddefaults = {}
if llfields:
fields.update(dict(llfields))
selfattrs = self.classdef.attrs
for name, attrdef in selfattrs.iteritems():
mangled = mangle(name, self.rtyper.getconfig())
if not attrdef.readonly:
repr = self.rtyper.getrepr(attrdef.s_value)
allfields[mangled] = repr
oot = repr.lowleveltype
fields[mangled] = oot
try:
value = self.classdef.classdesc.read_attribute(name)
fielddefaults[mangled] = repr.convert_desc_or_const(value)
except AttributeError:
pass
else:
s_value = attrdef.s_value
if isinstance(s_value, annmodel.SomePBC):
if len(s_value.descriptions) > 0 and s_value.getKind() == description.MethodDesc:
# attrdef is for a method
if mangled in allclassattributes:
raise TyperError("method overrides class attribute")
allmethods[mangled] = name, self.classdef.lookup_filter(s_value)
continue
# class attribute
if mangled in allmethods:
raise TyperError("class attribute overrides method")
allclassattributes[mangled] = name, s_value
special_methods = ["__init__", "__del__"]
for meth_name in special_methods:
if meth_name not in selfattrs and \
self.classdef.classdesc.find_source_for(meth_name) is not None:
s_meth = self.classdef.classdesc.s_get_value(self.classdef,
meth_name)
if isinstance(s_meth, annmodel.SomePBC):
mangled = mangle(meth_name, self.rtyper.getconfig())
allmethods[mangled] = meth_name, s_meth
# else: it's the __init__ of a builtin exception
ootype.addFields(self.lowleveltype, fields)
self.rbase = getinstancerepr(self.rtyper, self.classdef.basedef)
self.rbase.setup()
classattributes = {}
baseInstance = self.lowleveltype._superclass
classrepr = getclassrepr(self.rtyper, self.classdef)
# if this class has a corresponding metaclass, attach
# a getmeta() method to get the corresponding meta_instance
if classrepr.lowleveltype != ootype.Class:
oovalue = classrepr.get_meta_instance()
self.attach_class_attr_accessor('getmeta', oovalue)
for classdef in self.classdef.getmro():
for name, attrdef in classdef.attrs.iteritems():
if not attrdef.readonly:
continue
mangled = mangle(name, self.rtyper.getconfig())
if mangled in allclassattributes:
selfdesc = self.classdef.classdesc
if name not in selfattrs:
# if the attr was already found in a parent class,
# we register it again only if it is overridden.
if selfdesc.find_source_for(name) is None:
continue
value = selfdesc.read_attribute(name)
else:
# otherwise, for new attrs, we look in all parent
# classes to see if it's defined in a parent but only
# actually first used in self.classdef.
value = selfdesc.read_attribute(name, None)
# a non-method class attribute
if not attrdef.s_value.is_constant():
classattributes[mangled] = attrdef.s_value, value
self.allfields = allfields
self.allmethods = allmethods
self.allclassattributes = allclassattributes
self.classattributes = classattributes
# the following is done after the rest of the initialization because
# convert_const can require 'self' to be fully initialized.
# step 2: provide default values for fields
for mangled, impl in fielddefaults.items():
oot = fields[mangled]
ootype.addFields(self.lowleveltype, {mangled: (oot, impl)},
with_default=True)
def new_instance(self, llops, classcallhop=None):
"""Build a new instance, without calling __init__."""
classrepr = getclassrepr(self.rtyper, self.classdef)
v_instance = llops.genop("new",
[inputconst(ootype.Void, self.lowleveltype)], self.lowleveltype)
return v_instance
def _setup_repr(self, llfields=None, hints=None, adtmeths=None):
# NOTE: don't store mutable objects like the dicts below on 'self'
# before they are fully built, to avoid strange bugs in case
# of recursion where other code would uses these
# partially-initialized dicts.
AbstractInstanceRepr._setup_repr(self)
self.rclass = getclassrepr(self.rtyper, self.classdef)
fields = {}
allinstancefields = {}
if self.classdef is None:
fields["__class__"] = "typeptr", get_type_repr(self.rtyper)
else:
# instance attributes
attrs = self.classdef.attrs.items()
attrs.sort()
myllfields = []
for name, attrdef in attrs:
if not attrdef.readonly:
r = self.rtyper.getrepr(attrdef.s_value)
mangled_name = "inst_" + name
fields[name] = mangled_name, r
myllfields.append((mangled_name, r.lowleveltype))
# Sort the instance attributes by decreasing "likely size",
# as reported by rffi.sizeof(), to minimize padding holes in C.
# Fields of the same size are sorted by name (by attrs.sort()
# above) just to minimize randomness.
def keysize((_, T)):
if T is lltype.Void:
return None
from pypy.rpython.lltypesystem.rffi import sizeof
try:
return -sizeof(T)
except StandardError:
return None
myllfields.sort(key=keysize)
if llfields is None:
llfields = myllfields
else:
llfields = llfields + myllfields
self.rbase = getinstancerepr(self.rtyper, self.classdef.basedef, self.gcflavor)
self.rbase.setup()
MkStruct = lltype.STRUCT_BY_FLAVOR[LLFLAVOR[self.gcflavor]]
if adtmeths is None:
adtmeths = {}
if hints is None:
hints = {}
hints = self._check_for_immutable_hints(hints)
kwds = {}
if self.gcflavor == "gc":
kwds["rtti"] = True
for name, attrdef in attrs:
if not attrdef.readonly and self.is_quasi_immutable(name):
llfields.append(("mutate_" + name, OBJECTPTR))
object_type = MkStruct(
self.classdef.name, ("super", self.rbase.object_type), hints=hints, adtmeths=adtmeths, *llfields, **kwds
)
self.object_type.become(object_type)
allinstancefields.update(self.rbase.allinstancefields)
allinstancefields.update(fields)
self.fields = fields
self.allinstancefields = allinstancefields
def finish(self, rtyper):
bk = rtyper.annotator.bookkeeper
for cls in self.standardexceptions:
classdef = bk.getuniqueclassdef(cls)
rclass.getclassrepr(rtyper, classdef).setup()
def _setup_repr(self, llfields=None, hints=None):
if hints:
self.lowleveltype._hints.update(hints)
if self.classdef is None:
self.fields = {}
self.allfields = {}
self.allmethods = {}
self.allclassattributes = {}
self.classattributes = {}
return
if self.baserepr is not None:
allfields = self.baserepr.allfields.copy()
allmethods = self.baserepr.allmethods.copy()
allclassattributes = self.baserepr.allclassattributes.copy()
else:
allfields = {}
allmethods = {}
allclassattributes = {}
fields = {}
nonmangledfields = []
fielddefaults = {}
if llfields:
fields.update(dict(llfields))
selfattrs = self.classdef.attrs
for name, attrdef in selfattrs.iteritems():
mangled = mangle(name, self.rtyper.getconfig())
if not attrdef.readonly:
repr = self.rtyper.getrepr(attrdef.s_value)
allfields[mangled] = repr
oot = repr.lowleveltype
fields[mangled] = oot
nonmangledfields.append(name)
try:
value = self.classdef.classdesc.read_attribute(name)
fielddefaults[mangled] = repr.convert_desc_or_const(value)
except AttributeError:
pass
else:
s_value = attrdef.s_value
if isinstance(s_value, annmodel.SomePBC):
if len(s_value.descriptions) > 0 and s_value.getKind(
) == description.MethodDesc:
# attrdef is for a method
if mangled in allclassattributes:
raise TyperError(
"method overrides class attribute")
allmethods[
mangled] = name, self.classdef.lookup_filter(
s_value)
continue
# class attribute
if mangled in allmethods:
raise TyperError("class attribute overrides method")
allclassattributes[mangled] = name, s_value
special_methods = ["__init__", "__del__"]
for meth_name in special_methods:
if meth_name not in selfattrs and \
self.classdef.classdesc.find_source_for(meth_name) is not None:
s_meth = self.classdef.classdesc.s_get_value(
self.classdef, meth_name)
if isinstance(s_meth, annmodel.SomePBC):
mangled = mangle(meth_name, self.rtyper.getconfig())
allmethods[mangled] = meth_name, s_meth
# else: it's the __init__ of a builtin exception
ootype.addFields(self.lowleveltype, fields)
self.rbase = getinstancerepr(self.rtyper, self.classdef.basedef)
self.rbase.setup()
for name, attrdef in selfattrs.iteritems():
if not attrdef.readonly and self.is_quasi_immutable(name):
name = mangle('mutable_' + name, self.rtyper.getconfig())
ootype.addFields(self.lowleveltype, {name: OBJECT})
classattributes = {}
baseInstance = self.lowleveltype._superclass
classrepr = getclassrepr(self.rtyper, self.classdef)
# if this class has a corresponding metaclass, attach
# a getmeta() method to get the corresponding meta_instance
if classrepr.lowleveltype != ootype.Class:
oovalue = classrepr.get_meta_instance()
self.attach_class_attr_accessor('getmeta', oovalue)
for classdef in self.classdef.getmro():
for name, attrdef in classdef.attrs.iteritems():
if not attrdef.readonly:
continue
mangled = mangle(name, self.rtyper.getconfig())
if mangled in allclassattributes:
selfdesc = self.classdef.classdesc
if name not in selfattrs:
# if the attr was already found in a parent class,
# we register it again only if it is overridden.
if selfdesc.find_source_for(name) is None:
continue
value = selfdesc.read_attribute(name)
else:
# otherwise, for new attrs, we look in all parent
# classes to see if it's defined in a parent but only
# actually first used in self.classdef.
value = selfdesc.read_attribute(name, None)
# a non-method class attribute
if not attrdef.s_value.is_constant():
classattributes[mangled] = attrdef.s_value, value
self.fields = nonmangledfields
self.allfields = allfields
self.allmethods = allmethods
self.allclassattributes = allclassattributes
self.classattributes = classattributes
# the following is done after the rest of the initialization because
# convert_const can require 'self' to be fully initialized.
# step 2: provide default values for fields
for mangled, impl in fielddefaults.items():
oot = fields[mangled]
ootype.addFields(self.lowleveltype, {mangled: (oot, impl)},
with_default=True)
def _setup_repr(self):
if self.classdef is None:
self.allfields = {}
self.allmethods = {}
self.allclassattributes = {}
self.classattributes = {}
return
if self.baserepr is not None:
allfields = self.baserepr.allfields.copy()
allmethods = self.baserepr.allmethods.copy()
allclassattributes = self.baserepr.allclassattributes.copy()
else:
allfields = {}
allmethods = {}
allclassattributes = {}
fields = {}
fielddefaults = {}
selfattrs = self.classdef.attrs
for name, attrdef in selfattrs.iteritems():
mangled = mangle(name, self.rtyper.getconfig())
if not attrdef.readonly:
repr = self.rtyper.getrepr(attrdef.s_value)
allfields[mangled] = repr
oot = repr.lowleveltype
fields[mangled] = oot
try:
value = self.classdef.classdesc.read_attribute(name)
fielddefaults[mangled] = repr.convert_desc_or_const(value)
except AttributeError:
pass
else:
s_value = attrdef.s_value
if isinstance(s_value, annmodel.SomePBC):
if len(s_value.descriptions) > 0 and s_value.getKind() == description.MethodDesc:
# attrdef is for a method
if mangled in allclassattributes:
raise TyperError("method overrides class attribute")
allmethods[mangled] = name, self.classdef.lookup_filter(s_value)
continue
# class attribute
if mangled in allmethods:
raise TyperError("class attribute overrides method")
allclassattributes[mangled] = name, s_value
special_methods = ["__init__", "__del__"]
for meth_name in special_methods:
if meth_name not in selfattrs and \
self.classdef.classdesc.find_source_for(meth_name) is not None:
s_meth = self.classdef.classdesc.s_get_value(self.classdef,
meth_name)
if isinstance(s_meth, annmodel.SomePBC):
mangled = mangle(meth_name, self.rtyper.getconfig())
allmethods[mangled] = meth_name, s_meth
# else: it's the __init__ of a builtin exception
#
# hash() support
if self.rtyper.needs_hash_support(self.classdef):
from pypy.rpython import rint
allfields['_hash_cache_'] = rint.signed_repr
fields['_hash_cache_'] = ootype.Signed
ootype.addFields(self.lowleveltype, fields)
self.rbase = getinstancerepr(self.rtyper, self.classdef.basedef)
self.rbase.setup()
methods = {}
classattributes = {}
baseInstance = self.lowleveltype._superclass
classrepr = getclassrepr(self.rtyper, self.classdef)
for mangled, (name, s_value) in allmethods.iteritems():
methdescs = s_value.descriptions
origin = dict([(methdesc.originclassdef, methdesc) for
methdesc in methdescs])
if self.classdef in origin:
methdesc = origin[self.classdef]
else:
if name in selfattrs:
for superdef in self.classdef.getmro():
if superdef in origin:
# put in methods
methdesc = origin[superdef]
break
else:
# abstract method
methdesc = None
else:
continue
# get method implementation
from pypy.rpython.ootypesystem.rpbc import MethodImplementations
methimpls = MethodImplementations.get(self.rtyper, s_value)
m_impls = methimpls.get_impl(mangled, methdesc,
is_finalizer=name == "__del__")
methods.update(m_impls)
for classdef in self.classdef.getmro():
for name, attrdef in classdef.attrs.iteritems():
if not attrdef.readonly:
continue
mangled = mangle(name, self.rtyper.getconfig())
if mangled in allclassattributes:
selfdesc = self.classdef.classdesc
if name not in selfattrs:
# if the attr was already found in a parent class,
# we register it again only if it is overridden.
if selfdesc.find_source_for(name) is None:
continue
value = selfdesc.read_attribute(name)
else:
# otherwise, for new attrs, we look in all parent
# classes to see if it's defined in a parent but only
# actually first used in self.classdef.
value = selfdesc.read_attribute(name, None)
# a non-method class attribute
if not attrdef.s_value.is_constant():
classattributes[mangled] = attrdef.s_value, value
ootype.addMethods(self.lowleveltype, methods)
self.allfields = allfields
self.allmethods = allmethods
self.allclassattributes = allclassattributes
self.classattributes = classattributes
# the following is done after the rest of the initialization because
# convert_const can require 'self' to be fully initialized.
# step 2: provide default values for fields
for mangled, impl in fielddefaults.items():
oot = fields[mangled]
ootype.addFields(self.lowleveltype, {mangled: (oot, impl)})
def _setup_repr(self, llfields=None, hints=None, adtmeths=None):
# NOTE: don't store mutable objects like the dicts below on 'self'
# before they are fully built, to avoid strange bugs in case
# of recursion where other code would uses these
# partially-initialized dicts.
AbstractInstanceRepr._setup_repr(self)
self.rclass = getclassrepr(self.rtyper, self.classdef)
fields = {}
allinstancefields = {}
if self.classdef is None:
fields['__class__'] = 'typeptr', get_type_repr(self.rtyper)
else:
# instance attributes
attrs = self.classdef.attrs.items()
attrs.sort()
myllfields = []
for name, attrdef in attrs:
if not attrdef.readonly:
r = self.rtyper.getrepr(attrdef.s_value)
mangled_name = 'inst_' + name
fields[name] = mangled_name, r
myllfields.append((mangled_name, r.lowleveltype))
# Sort the instance attributes by decreasing "likely size",
# as reported by rffi.sizeof(), to minimize padding holes in C.
# Fields of the same size are sorted by name (by attrs.sort()
# above) just to minimize randomness.
def keysize((_, T)):
if T is lltype.Void:
return None
from pypy.rpython.lltypesystem.rffi import sizeof
try:
return -sizeof(T)
except StandardError:
return None
myllfields.sort(key=keysize)
if llfields is None:
llfields = myllfields
else:
llfields = llfields + myllfields
self.rbase = getinstancerepr(self.rtyper, self.classdef.basedef,
self.gcflavor)
self.rbase.setup()
MkStruct = lltype.STRUCT_BY_FLAVOR[LLFLAVOR[self.gcflavor]]
if adtmeths is None:
adtmeths = {}
if hints is None:
hints = {}
hints = self._check_for_immutable_hints(hints)
kwds = {}
if self.gcflavor == 'gc':
kwds['rtti'] = True
for name, attrdef in attrs:
if not attrdef.readonly and self.is_quasi_immutable(name):
llfields.append(('mutate_' + name, OBJECTPTR))
object_type = MkStruct(self.classdef.name,
('super', self.rbase.object_type),
hints=hints,
adtmeths=adtmeths,
*llfields,
**kwds)
self.object_type.become(object_type)
allinstancefields.update(self.rbase.allinstancefields)
allinstancefields.update(fields)
self.fields = fields
self.allinstancefields = allinstancefields
def finish(self, rtyper):
bk = rtyper.annotator.bookkeeper
for cls in self.standardexceptions:
classdef = bk.getuniqueclassdef(cls)
rclass.getclassrepr(rtyper, classdef).setup()
def _setup_repr(self):
if self.classdef is None:
self.allfields = {}
self.allmethods = {}
self.allclassattributes = {}
self.classattributes = {}
return
if self.baserepr is not None:
allfields = self.baserepr.allfields.copy()
allmethods = self.baserepr.allmethods.copy()
allclassattributes = self.baserepr.allclassattributes.copy()
else:
allfields = {}
allmethods = {}
allclassattributes = {}
fields = {}
fielddefaults = {}
selfattrs = self.classdef.attrs
for name, attrdef in selfattrs.iteritems():
mangled = mangle(name, self.rtyper.getconfig())
if not attrdef.readonly:
repr = self.rtyper.getrepr(attrdef.s_value)
allfields[mangled] = repr
oot = repr.lowleveltype
fields[mangled] = oot
try:
value = self.classdef.classdesc.read_attribute(name)
fielddefaults[mangled] = repr.convert_desc_or_const(value)
except AttributeError:
pass
else:
s_value = attrdef.s_value
if isinstance(s_value, annmodel.SomePBC):
if len(s_value.descriptions) > 0 and s_value.getKind(
) == description.MethodDesc:
# attrdef is for a method
if mangled in allclassattributes:
raise TyperError(
"method overrides class attribute")
allmethods[
mangled] = name, self.classdef.lookup_filter(
s_value)
continue
# class attribute
if mangled in allmethods:
raise TyperError("class attribute overrides method")
allclassattributes[mangled] = name, s_value
special_methods = ["__init__", "__del__"]
for meth_name in special_methods:
if meth_name not in selfattrs and \
self.classdef.classdesc.find_source_for(meth_name) is not None:
s_meth = self.classdef.classdesc.s_get_value(
self.classdef, meth_name)
if isinstance(s_meth, annmodel.SomePBC):
mangled = mangle(meth_name, self.rtyper.getconfig())
allmethods[mangled] = meth_name, s_meth
# else: it's the __init__ of a builtin exception
#
# hash() support
if self.rtyper.needs_hash_support(self.classdef):
from pypy.rpython import rint
allfields['_hash_cache_'] = rint.signed_repr
fields['_hash_cache_'] = ootype.Signed
ootype.addFields(self.lowleveltype, fields)
self.rbase = getinstancerepr(self.rtyper, self.classdef.basedef)
self.rbase.setup()
methods = {}
classattributes = {}
baseInstance = self.lowleveltype._superclass
classrepr = getclassrepr(self.rtyper, self.classdef)
for mangled, (name, s_value) in allmethods.iteritems():
methdescs = s_value.descriptions
origin = dict([(methdesc.originclassdef, methdesc)
for methdesc in methdescs])
if self.classdef in origin:
methdesc = origin[self.classdef]
else:
if name in selfattrs:
for superdef in self.classdef.getmro():
if superdef in origin:
# put in methods
methdesc = origin[superdef]
break
else:
# abstract method
methdesc = None
else:
continue
# get method implementation
from pypy.rpython.ootypesystem.rpbc import MethodImplementations
methimpls = MethodImplementations.get(self.rtyper, s_value)
m_impls = methimpls.get_impl(mangled,
methdesc,
is_finalizer=name == "__del__")
methods.update(m_impls)
for classdef in self.classdef.getmro():
for name, attrdef in classdef.attrs.iteritems():
if not attrdef.readonly:
continue
mangled = mangle(name, self.rtyper.getconfig())
if mangled in allclassattributes:
selfdesc = self.classdef.classdesc
if name not in selfattrs:
# if the attr was already found in a parent class,
# we register it again only if it is overridden.
if selfdesc.find_source_for(name) is None:
continue
value = selfdesc.read_attribute(name)
else:
# otherwise, for new attrs, we look in all parent
# classes to see if it's defined in a parent but only
# actually first used in self.classdef.
value = selfdesc.read_attribute(name, None)
# a non-method class attribute
if not attrdef.s_value.is_constant():
classattributes[mangled] = attrdef.s_value, value
ootype.addMethods(self.lowleveltype, methods)
self.allfields = allfields
self.allmethods = allmethods
self.allclassattributes = allclassattributes
self.classattributes = classattributes
# the following is done after the rest of the initialization because
# convert_const can require 'self' to be fully initialized.
# step 2: provide default values for fields
for mangled, impl in fielddefaults.items():
oot = fields[mangled]
ootype.addFields(self.lowleveltype, {mangled: (oot, impl)})