def define_hash_varsized(self):
S = lltype.GcStruct('S', ('abc', lltype.Signed),
('def', lltype.Array(lltype.Signed)))
s = lltype.malloc(S, 3, zero=True)
h_s = lltype.identityhash(s)
def f():
return lltype.identityhash(s) - h_s # != 0 (so far),
# because S is a varsized structure.
return f
def define_hash_varsized(self):
S = lltype.GcStruct('S', ('abc', lltype.Signed),
('def', lltype.Array(lltype.Signed)))
s = lltype.malloc(S, 3, zero=True)
h_s = lltype.identityhash(s)
def f():
return lltype.identityhash(s) - h_s # != 0 (so far),
# because S is a varsized structure.
return f
def hash_whatever(TYPE, x):
# Hash of lltype or ootype object.
# Only supports strings, unicodes and regular instances,
# as well as primitives that can meaningfully be cast to Signed.
if isinstance(TYPE, lltype.Ptr) and TYPE.TO._gckind == 'gc':
if TYPE.TO is rstr.STR or TYPE.TO is rstr.UNICODE:
return rstr.LLHelpers.ll_strhash(x) # assumed not null
else:
if x:
return lltype.identityhash(x)
else:
return 0
elif TYPE is ootype.String or TYPE is ootype.Unicode:
return x.ll_hash()
elif isinstance(TYPE, ootype.OOType):
if x:
return ootype.identityhash(x)
else:
return 0
else:
return rffi.cast(lltype.Signed, x)
def hash_whatever(TYPE, x):
# Hash of lltype or ootype object.
# Only supports strings, unicodes and regular instances,
# as well as primitives that can meaningfully be cast to Signed.
if isinstance(TYPE, lltype.Ptr) and TYPE.TO._gckind == 'gc':
if TYPE.TO is rstr.STR or TYPE.TO is rstr.UNICODE:
return rstr.LLHelpers.ll_strhash(x) # assumed not null
else:
if x:
return lltype.identityhash(x)
else:
return 0
elif TYPE is ootype.String or TYPE is ootype.Unicode:
return x.ll_hash()
elif isinstance(TYPE, ootype.OOType):
if x:
return ootype.identityhash(x)
else:
return 0
else:
return rffi.cast(lltype.Signed, x)
def _ll_1_gc_identityhash(x):
return lltype.identityhash(x)
def f():
return lltype.identityhash(s) - h_s # != 0 (so far),
def _get_hash_(self):
if self.value:
return lltype.identityhash(self.value)
else:
return 0
def f():
return lltype.identityhash(s) - h_s # != 0 (so far),
def f():
obj1 = lltype.malloc(A)
obj2 = lltype.malloc(A)
return lltype.identityhash(obj1) == lltype.identityhash(obj2)
def rd_hash(ref):
assert ref
return lltype.identityhash(ref)
def _get_hash_(self):
if self.value:
return lltype.identityhash(self.value)
else:
return 0
def _ll_1_gc_identityhash(x):
return lltype.identityhash(x)
def ll_inst_hash(ins):
if not ins:
return 0 # for None
else:
from pypy.rpython.lltypesystem import lltype
return lltype.identityhash(ins) # also works for ootype
def ll_inst_hash(ins):
if not ins:
return 0 # for None
else:
from pypy.rpython.lltypesystem import lltype
return lltype.identityhash(ins) # also works for ootype
def f():
obj1 = lltype.malloc(A)
obj2 = lltype.malloc(A)
return lltype.identityhash(obj1) == lltype.identityhash(obj2)
