def do_unpack_fastpath(fmtiter):
size = rffi.sizeof(TYPE)
strbuf, pos = fmtiter.get_buffer_as_string_maybe()
if strbuf is None or pos % size != 0 or not USE_FASTPATH:
raise CannotUnpack
fmtiter.skip(size)
return str_storage_getitem(TYPE, strbuf, pos)
def do_unpack_fastpath(fmtiter):
size = rffi.sizeof(TYPE)
strbuf, pos = fmtiter.get_buffer_as_string_maybe()
if strbuf is None or pos % size != 0 or not USE_FASTPATH:
raise CannotUnpack
fmtiter.skip(size)
return str_storage_getitem(TYPE, strbuf, pos)
def unpack_ieee(fmtiter):
size = rffi.sizeof(TYPE)
if fmtiter.bigendian != native_is_bigendian or not native_is_ieee754:
# fallback to the very slow unpacking code in ieee.py
data = fmtiter.read(size)
fmtiter.appendobj(ieee.unpack_float(data, fmtiter.bigendian))
return
## XXX check if the following code is still needed
## if not str_storage_supported(TYPE):
## # this happens e.g. on win32 and ARM32: we cannot read the string
## # content as an array of doubles because it's not properly
## # aligned. But we can read a longlong and convert to float
## assert TYPE == rffi.DOUBLE
## assert rffi.sizeof(TYPE) == 8
## return unpack_longlong2float(fmtiter)
try:
# fast path
val = unpack_fastpath(TYPE)(fmtiter)
except CannotUnpack:
# slow path, take the slice
input = fmtiter.read(size)
val = str_storage_getitem(TYPE, input, 0)
fmtiter.appendobj(float(val))
def unpack_ieee(fmtiter):
size = rffi.sizeof(TYPE)
if fmtiter.bigendian != native_is_bigendian or not native_is_ieee754:
# fallback to the very slow unpacking code in ieee.py
data = fmtiter.read(size)
fmtiter.appendobj(ieee.unpack_float(data, fmtiter.bigendian))
return
## XXX check if the following code is still needed
## if not str_storage_supported(TYPE):
## # this happens e.g. on win32 and ARM32: we cannot read the string
## # content as an array of doubles because it's not properly
## # aligned. But we can read a longlong and convert to float
## assert TYPE == rffi.DOUBLE
## assert rffi.sizeof(TYPE) == 8
## return unpack_longlong2float(fmtiter)
try:
# fast path
val = unpack_fastpath(TYPE)(fmtiter)
except CannotUnpack:
# slow path, take the slice
input = fmtiter.read(size)
val = str_storage_getitem(TYPE, input, 0)
fmtiter.appendobj(float(val))
def llf(buf, offset):
x = str_storage_getitem(TYPE, buf, offset)
return lltype.cast_primitive(TARGET_TYPE, x)
def fn(offset):
return str_storage_getitem(TYPE, buf, offset)
def str_storage_getitem(self, TYPE, buf, offset):
return str_storage_getitem(TYPE, buf, offset)
def f(val):
if byteorder == 'little':
x = chr(val) + '\x00' * (size - 1)
else:
x = '\x00' * (size - 1) + chr(val)
return str_storage_getitem(lltype.Signed, x, 0)
def f(val):
if byteorder == 'little':
x = chr(val) + '\x00'*(size-1)
else:
x = '\x00'*(size-1) + chr(val)
return str_storage_getitem(lltype.Signed, x, 0)
def f():
return str_storage_getitem(TYPE, buf, offset)
def llf(buf, offset):
x = str_storage_getitem(TYPE, buf, offset)
return lltype.cast_primitive(TARGET_TYPE, x)
def str_storage_getitem(self, TYPE, buf, offset):
return str_storage_getitem(TYPE, buf, offset)
