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# test builtin slice
# ensures that slices passed to user types are heap-allocated and can be
# safely stored as well as not overriden by subsequent slices.
# print slice
class A:
def __getitem__(self, idx):
print("get", idx)
print("abc"[1:])
print("get", idx)
return idx
def __setitem__(self, idx, value):
print("set", idx)
print("abc"[1:])
print("set", idx)
self.saved_idx = idx
return idx
def __delitem__(self, idx):
print("del", idx)
print("abc"[1:])
print("del", idx)
return idx
a = A()
s = a[1:2:3]
a[4:5:6] = s
del a[7:8:9]
print(a.saved_idx)
# nested slicing
print(A()[1 : A()[A()[2:3:4] : 5]])
# tuple slicing
a[1:2, 4:5, 7:8]
a[1, 4:5, 7:8, 2]
a[1:2, a[3:4], 5:6]
# check type
print(type(s) is slice)
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