def test_precomputed_slices_non_const():
transformer = precomputed_slices()
def f(a, b):
with_non_const = a[b]
with_mixed = a[1, b]
return with_non_const, with_mixed
transformed = transformer(f)
f_instrs = Code.from_pyfunc(f).instrs
transformed_instrs = Code.from_pyfunc(transformed).instrs
for orig, xformed in zip(f_instrs, transformed_instrs):
assert orig.equiv(xformed)
def test_precomputed_slices():
@precomputed_slices()
def foo(a):
return a[1:5]
l = list(range(10))
assert foo(l) == l[1:5]
assert slice(1, 5) in foo.__code__.co_consts
instrs = Code.from_pyfunc(foo).instrs
assert LOAD_CONST(slice(1, 5)).equiv(instrs[1])
assert BUILD_SLICE not in set(map(type, instrs))