/
data.py
97 lines (77 loc) · 1.92 KB
/
data.py
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from collections import defaultdict
import inspect
import time
import opcode
import dis
infinity = 5
LOAD_ATTR = opcode.opmap['LOAD_ATTR']
class Infinidata(float):
def __new__(cls, *args):
return float.__new__(cls, 'inf')
@property
def data(self):
return self
class data(object):
def __init__(self):
self._infinidata = Infinidata('your mom')
def _get_data(self):
count = 0
frame = inspect.currentframe().f_back
print '#', frame.f_code
dis.disco(frame.f_code, frame.f_lasti)
last_op = None
try:
co = frame.f_code
code = co.co_code
i = 0
n = min(len(code), frame.f_lasti + 1)
extended_arg = 0
while i < n:
op = ord(code[i])
print opcode.opname[op].ljust(20),
i = i+1
if op >= opcode.HAVE_ARGUMENT:
oparg = ord(code[i]) + ord(code[i+1])*256 + extended_arg
i = i+2
if op == opcode.EXTENDED_ARG:
extended_arg = oparg*65536L
if op in opcode.hasname:
name = co.co_names[oparg]
print name,
if op == LOAD_ATTR and name == 'data':
count += 1
if i >= frame.f_lasti and count > infinity:
print '#', count
return self._infinidata
elif op == opcode.opmap['LOAD_NAME']:
count = 0
if (
op == opcode.opmap['LOAD_FAST']
and last_op != opcode.opmap['STORE_FAST']
):
count = 0
last_op = op
print '#', count
finally:
del frame
del co
del code
return self
data = property(_get_data)
def _main():
my_data = data()
print 'simple 1', '-'*80
print my_data.data.data.data.data.data
print 'simple 2', '-'*80
print my_data.data.data.data.data.data
print '2 on one line', '-'*80
print my_data.data.data.data.data.data, my_data.data.data.data.data.data
end = time.time() + 0.2
while time.time() < end:
print 'eval', '-'*80
print eval('my_data.data.data.data.data.data')
time.sleep(0.1)
if __name__ == '__main__':
#dis.dis(data._get_data)
#dis.dis(_main)
_main()