def __setitem__(self, key, value):
# This is heavily used. This implementation is the best we have
# according to the timings in bench/env.__setitem__.py.
#
# The "key in self._special_set_keys" test here seems to perform
# pretty well for the number of keys we have. A hard-coded
# list works a little better in Python 2.5, but that has the
# disadvantage of maybe getting out of sync if we ever add more
# variable names. Using self._special_set.has_key() works a
# little better in Python 2.4, but is worse than this test.
# So right now it seems like a good trade-off, but feel free to
# revisit this with bench/env.__setitem__.py as needed (and
# as newer versions of Python come out).
if key in self._special_set_keys:
self._special_set[key](self, key, value)
else:
# If we already have the entry, then it's obviously a valid
# key and we don't need to check. If we do check, using a
# global, pre-compiled regular expression directly is more
# efficient than calling another function or a method.
if key not in self._dict \
and not _is_valid_var.match(key):
raise SCons.Errors.UserError("Illegal construction variable `%s'" % key)
self._dict[key] = value
python类__setitem__()的实例源码
def __setitem__(self, key, value):
# This is heavily used. This implementation is the best we have
# according to the timings in bench/env.__setitem__.py.
#
# The "key in self._special_set_keys" test here seems to perform
# pretty well for the number of keys we have. A hard-coded
# list works a little better in Python 2.5, but that has the
# disadvantage of maybe getting out of sync if we ever add more
# variable names. Using self._special_set.has_key() works a
# little better in Python 2.4, but is worse than this test.
# So right now it seems like a good trade-off, but feel free to
# revisit this with bench/env.__setitem__.py as needed (and
# as newer versions of Python come out).
if key in self._special_set_keys:
self._special_set[key](self, key, value)
else:
# If we already have the entry, then it's obviously a valid
# key and we don't need to check. If we do check, using a
# global, pre-compiled regular expression directly is more
# efficient than calling another function or a method.
if key not in self._dict \
and not _is_valid_var.match(key):
raise SCons.Errors.UserError("Illegal construction variable `%s'" % key)
self._dict[key] = value
def __setitem__(self, key, value):
# This is heavily used. This implementation is the best we have
# according to the timings in bench/env.__setitem__.py.
#
# The "key in self._special_set_keys" test here seems to perform
# pretty well for the number of keys we have. A hard-coded
# list works a little better in Python 2.5, but that has the
# disadvantage of maybe getting out of sync if we ever add more
# variable names. Using self._special_set.has_key() works a
# little better in Python 2.4, but is worse than this test.
# So right now it seems like a good trade-off, but feel free to
# revisit this with bench/env.__setitem__.py as needed (and
# as newer versions of Python come out).
if key in self._special_set_keys:
self._special_set[key](self, key, value)
else:
# If we already have the entry, then it's obviously a valid
# key and we don't need to check. If we do check, using a
# global, pre-compiled regular expression directly is more
# efficient than calling another function or a method.
if key not in self._dict \
and not _is_valid_var.match(key):
raise SCons.Errors.UserError("Illegal construction variable `%s'" % key)
self._dict[key] = value
def __init__(self, initdict=None):
UserDict.__init__(self)
if initdict == None:
return
for key, val in list(initdict.items()):
self.__setitem__(self, key, val)
def __setitem__(self, key, item):
UserDict.__setitem__(self, key, item)
UserDict.__setitem__(self, item, key)
def __setitem__(self, item, val):
try:
method = getattr(self.env, item).method
except AttributeError:
pass
else:
self.env.RemoveMethod(method)
UserDict.__setitem__(self, item, val)
BuilderWrapper(self.env, val, item)
def update(self, dict):
for i, v in dict.items():
self.__setitem__(i, v)
def Replace(self, **kw):
"""Replace existing construction variables in an Environment
with new construction variables and/or values.
"""
try:
kwbd = kw['BUILDERS']
except KeyError:
pass
else:
kwbd = BuilderDict(kwbd,self)
del kw['BUILDERS']
self.__setitem__('BUILDERS', kwbd)
kw = copy_non_reserved_keywords(kw)
self._update(semi_deepcopy(kw))
self.scanner_map_delete(kw)
def __setitem__(self, key, value):
if not is_valid_construction_var(key):
raise SCons.Errors.UserError("Illegal construction variable `%s'" % key)
self.__dict__['overrides'][key] = value
def update(self, dict):
for (key, val) in dict.items():
self.__setitem__(key, val)
def __setitem__(self, i, item):
UserList.__setitem__(self, i, item)
self.unique = False
def __setitem__(self, i, v):
return self
def __setitem__(self, key, value):
data = base64.b64encode(pickle.dumps(value)).decode('ascii')
return UserDict.__setitem__(self, key, data)
def __setitem__(self, item, val):
try:
method = getattr(self.env, item).method
except AttributeError:
pass
else:
self.env.RemoveMethod(method)
UserDict.__setitem__(self, item, val)
BuilderWrapper(self.env, val, item)
def update(self, dict):
for i, v in dict.items():
self.__setitem__(i, v)
def Replace(self, **kw):
"""Replace existing construction variables in an Environment
with new construction variables and/or values.
"""
try:
kwbd = kw['BUILDERS']
except KeyError:
pass
else:
kwbd = BuilderDict(kwbd,self)
del kw['BUILDERS']
self.__setitem__('BUILDERS', kwbd)
kw = copy_non_reserved_keywords(kw)
self._update(semi_deepcopy(kw))
self.scanner_map_delete(kw)
def __setitem__(self, key, value):
if not is_valid_construction_var(key):
raise SCons.Errors.UserError("Illegal construction variable `%s'" % key)
self.__dict__['overrides'][key] = value
def update(self, dict):
for (key, val) in dict.items():
self.__setitem__(key, val)
def __setitem__(self, i, item):
UserList.__setitem__(self, i, item)
self.unique = False
def __setitem__(self, i, v):
return self
def __setitem__(self, item, val):
try:
method = getattr(self.env, item).method
except AttributeError:
pass
else:
self.env.RemoveMethod(method)
UserDict.__setitem__(self, item, val)
BuilderWrapper(self.env, val, item)
def update(self, dict):
for i, v in dict.items():
self.__setitem__(i, v)
def Replace(self, **kw):
"""Replace existing construction variables in an Environment
with new construction variables and/or values.
"""
try:
kwbd = kw['BUILDERS']
except KeyError:
pass
else:
kwbd = BuilderDict(kwbd,self)
del kw['BUILDERS']
self.__setitem__('BUILDERS', kwbd)
kw = copy_non_reserved_keywords(kw)
self._update(semi_deepcopy(kw))
self.scanner_map_delete(kw)
def __setitem__(self, key, value):
if not is_valid_construction_var(key):
raise SCons.Errors.UserError("Illegal construction variable `%s'" % key)
self.__dict__['overrides'][key] = value
def update(self, dict):
for (key, val) in dict.items():
self.__setitem__(key, val)
def __setitem__(self, i, item):
UserList.__setitem__(self, i, item)
self.unique = False
def __setitem__(self, i, v):
return self
def __setitem__(self, key, value):
data = base64.b64encode(pickle.dumps(value)).decode('ascii')
return UserDict.__setitem__(self, key, data)
def __setitem__(self, key, value):
if self.get(key) != value:
if key in self:
self.del_value(self[key])
if value in self._reversed:
del self[self.get_key(value)]
self._reversed[value] = key
if PY2:
return UserDict.__setitem__(self, key, value)
else:
return super(TwoWayDict, self).__setitem__(key, value)
