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copy.pyo
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Python Compiled Bytecode
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2008-10-13
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9KB
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416 lines
# Source Generated with Decompyle++
# File: in.pyo (Python 2.5)
import types
from copy_reg import dispatch_table
class Error(Exception):
pass
error = Error
try:
from org.python.core import PyStringMap
except ImportError:
PyStringMap = None
__all__ = [
'Error',
'copy',
'deepcopy']
def copy(x):
cls = type(x)
copier = _copy_dispatch.get(cls)
if copier:
return copier(x)
copier = getattr(cls, '__copy__', None)
if copier:
return copier(x)
reductor = dispatch_table.get(cls)
if reductor:
rv = reductor(x)
else:
reductor = getattr(x, '__reduce_ex__', None)
if reductor:
rv = reductor(2)
else:
reductor = getattr(x, '__reduce__', None)
if reductor:
rv = reductor()
else:
raise Error('un(shallow)copyable object of type %s' % cls)
return _reconstruct(x, rv, 0)
_copy_dispatch = d = { }
def _copy_immutable(x):
return x
for t in (type(None), int, long, float, bool, str, tuple, frozenset, type, xrange, types.ClassType, types.BuiltinFunctionType, types.FunctionType):
d[t] = _copy_immutable
for name in ('ComplexType', 'UnicodeType', 'CodeType'):
t = getattr(types, name, None)
if t is not None:
d[t] = _copy_immutable
continue
def _copy_with_constructor(x):
return type(x)(x)
for t in (list, dict, set):
d[t] = _copy_with_constructor
def _copy_with_copy_method(x):
return x.copy()
if PyStringMap is not None:
d[PyStringMap] = _copy_with_copy_method
def _copy_inst(x):
if hasattr(x, '__copy__'):
return x.__copy__()
if hasattr(x, '__getinitargs__'):
args = x.__getinitargs__()
y = x.__class__(*args)
else:
y = _EmptyClass()
y.__class__ = x.__class__
if hasattr(x, '__getstate__'):
state = x.__getstate__()
else:
state = x.__dict__
if hasattr(y, '__setstate__'):
y.__setstate__(state)
else:
y.__dict__.update(state)
return y
d[types.InstanceType] = _copy_inst
del d
def deepcopy(x, memo = None, _nil = []):
if memo is None:
memo = { }
d = id(x)
y = memo.get(d, _nil)
if y is not _nil:
return y
cls = type(x)
copier = _deepcopy_dispatch.get(cls)
if copier:
y = copier(x, memo)
else:
try:
issc = issubclass(cls, type)
except TypeError:
issc = 0
if issc:
y = _deepcopy_atomic(x, memo)
else:
copier = getattr(x, '__deepcopy__', None)
if copier:
y = copier(memo)
else:
reductor = dispatch_table.get(cls)
if reductor:
rv = reductor(x)
else:
reductor = getattr(x, '__reduce_ex__', None)
if reductor:
rv = reductor(2)
else:
reductor = getattr(x, '__reduce__', None)
if reductor:
rv = reductor()
else:
raise Error('un(deep)copyable object of type %s' % cls)
y = _reconstruct(x, rv, 1, memo)
memo[d] = y
_keep_alive(x, memo)
return y
_deepcopy_dispatch = d = { }
def _deepcopy_atomic(x, memo):
return x
d[type(None)] = _deepcopy_atomic
d[int] = _deepcopy_atomic
d[long] = _deepcopy_atomic
d[float] = _deepcopy_atomic
d[bool] = _deepcopy_atomic
try:
d[complex] = _deepcopy_atomic
except NameError:
pass
d[str] = _deepcopy_atomic
try:
d[unicode] = _deepcopy_atomic
except NameError:
pass
try:
d[types.CodeType] = _deepcopy_atomic
except AttributeError:
pass
d[type] = _deepcopy_atomic
d[xrange] = _deepcopy_atomic
d[types.ClassType] = _deepcopy_atomic
d[types.BuiltinFunctionType] = _deepcopy_atomic
d[types.FunctionType] = _deepcopy_atomic
def _deepcopy_list(x, memo):
y = []
memo[id(x)] = y
for a in x:
y.append(deepcopy(a, memo))
return y
d[list] = _deepcopy_list
def _deepcopy_tuple(x, memo):
y = []
for a in x:
y.append(deepcopy(a, memo))
d = id(x)
try:
return memo[d]
except KeyError:
pass
for i in range(len(x)):
if x[i] is not y[i]:
y = tuple(y)
break
continue
else:
y = x
memo[d] = y
return y
d[tuple] = _deepcopy_tuple
def _deepcopy_dict(x, memo):
y = { }
memo[id(x)] = y
for key, value in x.iteritems():
y[deepcopy(key, memo)] = deepcopy(value, memo)
return y
d[dict] = _deepcopy_dict
if PyStringMap is not None:
d[PyStringMap] = _deepcopy_dict
def _keep_alive(x, memo):
try:
memo[id(memo)].append(x)
except KeyError:
memo[id(memo)] = [
x]
def _deepcopy_inst(x, memo):
if hasattr(x, '__deepcopy__'):
return x.__deepcopy__(memo)
if hasattr(x, '__getinitargs__'):
args = x.__getinitargs__()
args = deepcopy(args, memo)
y = x.__class__(*args)
else:
y = _EmptyClass()
y.__class__ = x.__class__
memo[id(x)] = y
if hasattr(x, '__getstate__'):
state = x.__getstate__()
else:
state = x.__dict__
state = deepcopy(state, memo)
if hasattr(y, '__setstate__'):
y.__setstate__(state)
else:
y.__dict__.update(state)
return y
d[types.InstanceType] = _deepcopy_inst
def _reconstruct(x, info, deep, memo = None):
if isinstance(info, str):
return x
if memo is None:
memo = { }
n = len(info)
(callable, args) = info[:2]
if n > 2:
state = info[2]
else:
state = { }
if n > 3:
listiter = info[3]
else:
listiter = None
if n > 4:
dictiter = info[4]
else:
dictiter = None
if deep:
args = deepcopy(args, memo)
y = callable(*args)
memo[id(x)] = y
if listiter is not None:
for item in listiter:
if deep:
item = deepcopy(item, memo)
y.append(item)
if dictiter is not None:
for key, value in dictiter:
if deep:
key = deepcopy(key, memo)
value = deepcopy(value, memo)
y[key] = value
if state:
if deep:
state = deepcopy(state, memo)
if hasattr(y, '__setstate__'):
y.__setstate__(state)
elif isinstance(state, tuple) and len(state) == 2:
(state, slotstate) = state
else:
slotstate = None
if state is not None:
y.__dict__.update(state)
if slotstate is not None:
for key, value in slotstate.iteritems():
setattr(y, key, value)
return y
del d
del types
class _EmptyClass:
pass
def _test():
l = [
None,
1,
0x2L,
3.14,
'xyzzy',
(1, 0x2L),
[
3.14,
'abc'],
{
'abc': 'ABC' },
(),
[],
{ }]
l1 = copy(l)
print l1 == l
l1 = map(copy, l)
print l1 == l
l1 = deepcopy(l)
print l1 == l
class C:
def __init__(self, arg = None):
self.a = 1
self.arg = arg
if __name__ == '__main__':
import sys as sys
file = sys.argv[0]
else:
file = __file__
self.fp = open(file)
self.fp.close()
def __getstate__(self):
return {
'a': self.a,
'arg': self.arg }
def __setstate__(self, state):
for key, value in state.iteritems():
setattr(self, key, value)
def __deepcopy__(self, memo = None):
new = self.__class__(deepcopy(self.arg, memo))
new.a = self.a
return new
c = C('argument sketch')
l.append(c)
l2 = copy(l)
print l == l2
print l
print l2
l2 = deepcopy(l)
print l == l2
print l
print l2
l.append({
l[1]: l,
'xyz': l[2] })
l3 = copy(l)
import repr as repr
print map(repr.repr, l)
print map(repr.repr, l1)
print map(repr.repr, l2)
print map(repr.repr, l3)
l3 = deepcopy(l)
import repr as repr
print map(repr.repr, l)
print map(repr.repr, l1)
print map(repr.repr, l2)
print map(repr.repr, l3)
if __name__ == '__main__':
_test()