def ll_strhash(s):
# unlike CPython, there is no reason to avoid to return -1
# but our malloc initializes the memory to zero, so we use zero as the
# special non-computed-yet value.
x = s.hash
if x == 0:
x = _hash_string(s.chars)
s.hash = x
return x
def hash__String(space, w_str):
s = w_str._value
if we_are_translated():
x = hash(s) # to use the hash cache in rpython strings
else:
x = _hash_string(s) # to make sure we get the same hash as rpython
# (otherwise translation will freeze W_DictObjects where we can't find
# the keys any more!)
return wrapint(space, x)
def ll_strhash(s):
# unlike CPython, there is no reason to avoid to return -1
# but our malloc initializes the memory to zero, so we use zero as the
# special non-computed-yet value.
x = s.hash
if x == 0:
x = _hash_string(s.chars)
s.hash = x
return x
def hash__String(space, w_str):
s = w_str._value
if we_are_translated():
x = hash(s) # to use the hash cache in rpython strings
else:
x = _hash_string(s) # to make sure we get the same hash as rpython
# (otherwise translation will freeze W_DictObjects where we can't find
# the keys any more!)
return wrapint(space, x)
def hash__Unicode(space, w_uni):
s = w_uni._value
if space.config.objspace.std.withrope:
# be compatible with the special ropes hash
# XXX no caching
if len(s) == 0:
return space.wrap(0)
x = 0
for c in s:
x = intmask((1000003 * x) + ord(c))
x <<= 1
x ^= len(s)
x ^= ord(s[0])
h = intmask(x)
return space.wrap(h)
if we_are_translated():
x = hash(s) # to use the hash cache in rpython strings
else:
from pypy.rlib.rarithmetic import _hash_string
x = _hash_string(s) # to make sure we get the same hash as rpython
# (otherwise translation will freeze W_DictObjects where we can't find
# the keys any more!)
return space.wrap(x)
def hash__Unicode(space, w_uni):
s = w_uni._value
if space.config.objspace.std.withrope:
# be compatible with the special ropes hash
# XXX no caching
if len(s) == 0:
return space.wrap(0)
x = 0
for c in s:
x = intmask((1000003 * x) + ord(c))
x <<= 1
x ^= len(s)
x ^= ord(s[0])
h = intmask(x)
return space.wrap(h)
if we_are_translated():
x = hash(s) # to use the hash cache in rpython strings
else:
from pypy.rlib.rarithmetic import _hash_string
x = _hash_string(s) # to make sure we get the same hash as rpython
# (otherwise translation will freeze W_DictObjects where we can't find
# the keys any more!)
return space.wrap(x)
