def _(operand):
offset, base = single(operand.items())
if not isinstance(offset, (Register, Integral)):
raise TypeError("Expected integer offset. Got {}".format(offset))
if not isinstance(base, (Register, AutoIncrementedRegister)):
raise TypeError("{} is not a base".format(base))
return Indexed(base=base, offset=offset)
def test_indexed_inequality(base_a, offset_a, base_b, offset_b):
assume((base_a, offset_a) != (base_b, offset_b))
assert Indexed(base_a, offset_a) != Indexed(base_b, offset_b)
def test_indexed_hash_equality(base, offset):
assert hash(Indexed(base, offset)) == hash(Indexed(base, offset))
def test_indexed_equality(base, offset):
assert Indexed(base, offset) == Indexed(base, offset)
def test_indexed_inequality_different_types(base, offset):
assert Indexed(base, offset) != object()
def test_indexed_repr(base, offset):
r = repr(Indexed(base, offset))
assert r.startswith('Indexed')
assert base.name in r
assert check_balanced(r)
def test_indexed_autoincrement_with_out_of_range_offset_raises_value_error(
index_register, offset):
assume(offset != 0)
with raises(ValueError):
Indexed(index_register, offset)
def test_indexed_autoincrement_with_non_zero_offset_raises_value_error(
index_register, delta, offset):
assume(offset != 0)
print(offset)
with raises(ValueError):
Indexed(AutoIncrementedRegister(index_register, delta), offset)
def test_indexed_values(base, offset):
idx = Indexed(base, offset)
assert idx.base == base
assert idx.offset == offset
def test_indexed_zero_offset():
asm = AsmDsl()
asm(ADDA, {0: X})
assert statements(asm) == (AddA(Indexed(X, 0)), )