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copy: Patch to make loadable in MicroPython. 

Limit support to standard types and __copy__() method.
asyncio-segfault
Paul Sokolovsky 2014-04-06 23:00:41 +03:00
rodzic 8bef738ca9
commit eb80a14ed0
1 zmienionych plików z 13 dodań i 10 usunięć
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copy/copy.py
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@ -49,9 +49,9 @@ __getstate__() and __setstate__(). See the documentation for module
""" """
import types import types
import weakref #import weakref
from copyreg import dispatch_table #from copyreg import dispatch_table
import builtins #import builtins
class Error(Exception): class Error(Exception):
pass pass
@ -80,6 +80,9 @@ def copy(x):
if copier: if copier:
return copier(x) return copier(x)
raise Error("un(shallow)copyable object of type %s" % cls)
dispatch_table = {}
reductor = dispatch_table.get(cls) reductor = dispatch_table.get(cls)
if reductor: if reductor:
rv = reductor(x) rv = reductor(x)
@ -102,17 +105,17 @@ _copy_dispatch = d = {}
def _copy_immutable(x): def _copy_immutable(x):
return x return x
for t in (type(None), int, float, bool, str, tuple, for t in (type(None), int, float, bool, str, tuple,
frozenset, type, range, type, range,
types.BuiltinFunctionType, type(Ellipsis), types.BuiltinFunctionType, type(Ellipsis),
types.FunctionType, weakref.ref): types.FunctionType):
d[t] = _copy_immutable d[t] = _copy_immutable
t = getattr(types, "CodeType", None) t = getattr(types, "CodeType", None)
if t is not None: if t is not None:
d[t] = _copy_immutable d[t] = _copy_immutable
for name in ("complex", "unicode"): #for name in ("complex", "unicode"):
t = getattr(builtins, name, None) # t = getattr(builtins, name, None)
if t is not None: # if t is not None:
d[t] = _copy_immutable # d[t] = _copy_immutable
def _copy_with_constructor(x): def _copy_with_constructor(x):
return type(x)(x) return type(x)(x)
@ -202,7 +205,7 @@ d[type] = _deepcopy_atomic
d[range] = _deepcopy_atomic d[range] = _deepcopy_atomic
d[types.BuiltinFunctionType] = _deepcopy_atomic d[types.BuiltinFunctionType] = _deepcopy_atomic
d[types.FunctionType] = _deepcopy_atomic d[types.FunctionType] = _deepcopy_atomic
d[weakref.ref] = _deepcopy_atomic #d[weakref.ref] = _deepcopy_atomic
def _deepcopy_list(x, memo): def _deepcopy_list(x, memo):
y = [] y = []