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from pypy.interpreter.baseobjspace import W_Root
from pypy.interpreter.gateway import interp2app
from pypy.interpreter.typedef import TypeDef
class W_NoneObject(W_Root):
def unwrap(self, space):
return None
@staticmethod
def descr_new(space, w_type):
"Create and return a new object. See help(type) for accurate signature."
return space.w_None
def descr_bool(self, space):
return space.w_False
def descr_repr(self, space):
return space.newtext('None')
def descr_or(self, space, w_other):
w_builtins = space.getbuiltinmodule('builtins')
w_mod = space.call_method(w_builtins, '__import__', space.newtext("_pypy_generic_alias"))
w_union = space.getattr(w_mod, space.newtext("_create_union"))
w_union = space.getattr(w_mod, space.newtext("_create_union"))
return space.call_function(w_union, self, w_other)
W_NoneObject.w_None = W_NoneObject()
W_NoneObject.typedef = TypeDef("NoneType",
__new__ = interp2app(W_NoneObject.descr_new),
__bool__ = interp2app(W_NoneObject.descr_bool),
__repr__ = interp2app(W_NoneObject.descr_repr),
)
W_NoneObject.typedef.acceptable_as_base_class = False
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