mirror of
https://github.com/micropython/micropython.git
synced 2025-09-06 01:40:34 +02:00
82db5c81e0
Including the stochastic tests needed to guarantee sensitivity to the potential iterate-while-modifying hazard a naive implementation might have. Signed-off-by: Anson Mansfield <amansfield@mantaro.com>
68 lines
1.3 KiB
Python
68 lines
1.3 KiB
Python
class Descriptor:
|
|
def __get__(self, obj, cls):
|
|
print("get")
|
|
print(type(obj) is Main)
|
|
print(cls is Main)
|
|
return "result"
|
|
|
|
def __set__(self, obj, val):
|
|
print("set")
|
|
print(type(obj) is Main)
|
|
print(val)
|
|
|
|
def __delete__(self, obj):
|
|
print("delete")
|
|
print(type(obj) is Main)
|
|
|
|
def __set_name__(self, owner, name):
|
|
print("set_name", name)
|
|
print(owner.__name__ == "Main")
|
|
|
|
|
|
class Main:
|
|
Forward = Descriptor()
|
|
|
|
|
|
m = Main()
|
|
try:
|
|
m.__class__
|
|
except AttributeError:
|
|
# Target doesn't support __class__.
|
|
print("SKIP")
|
|
raise SystemExit
|
|
|
|
r = m.Forward
|
|
if "Descriptor" in repr(r.__class__):
|
|
# Target doesn't support descriptors.
|
|
print("SKIP")
|
|
raise SystemExit
|
|
|
|
# Test assignment and deletion.
|
|
|
|
print(r)
|
|
m.Forward = "a"
|
|
del m.Forward
|
|
|
|
# Test that lookup of descriptors like __get__ are not passed into __getattr__.
|
|
|
|
|
|
class NonDescriptor:
|
|
def __getattr__(self, attr):
|
|
print("getattr", attr)
|
|
|
|
|
|
class TestClass:
|
|
non_descriptor = NonDescriptor()
|
|
|
|
|
|
print(isinstance(TestClass().non_descriptor, NonDescriptor))
|
|
|
|
t = TestClass()
|
|
t.non_descriptor = 123
|
|
print(t.non_descriptor)
|
|
|
|
try:
|
|
del TestClass().non_descriptor
|
|
except AttributeError:
|
|
print("AttributeError")
|