def _stim_append_measurement_gate(circuit: stim.Circuit,
gate: cirq.MeasurementGate,
targets: List[int]):
for i, b in enumerate(gate.invert_mask):
if b:
targets[i] = stim.target_inv(targets[i])
circuit.append_operation("M", targets)
def _stim_conversion_(self, edit_circuit: stim.Circuit,
edit_measurement_key_lengths: List[Tuple[str,
int]],
targets: Sequence[int], **kwargs):
edit_measurement_key_lengths.append(("custom", 2))
edit_circuit.append_operation("M", [stim.target_inv(targets[0])])
edit_circuit.append_operation("M", [targets[0]])
edit_circuit.append_operation("DETECTOR", [stim.target_rec(-1)])
def test_circuit_append_operation():
c = stim.Circuit()
with pytest.raises(IndexError, match="Gate not found"):
c.append_operation("NOT_A_GATE", [0])
with pytest.raises(IndexError, match="even number of targets"):
c.append_operation("CNOT", [0])
with pytest.raises(IndexError, match="doesn't take"):
c.append_operation("X", [0], 0.5)
with pytest.raises(IndexError, match="invalid flags"):
c.append_operation("X", [stim.target_inv(0)])
with pytest.raises(IndexError, match="invalid flags"):
c.append_operation("X", [stim.target_x(0)])
with pytest.raises(IndexError, match="lookback"):
stim.target_rec(0)
with pytest.raises(IndexError, match="lookback"):
stim.target_rec(1)
with pytest.raises(IndexError, match="lookback"):
stim.target_rec(-2**30)
assert stim.target_rec(-1) is not None
assert stim.target_rec(-15) is not None
c.append_operation("X", [0])
c.append_operation("X", [1, 2])
c.append_operation("X", [3])
c.append_operation("CNOT", [0, 1])
c.append_operation("M", [0, stim.target_inv(1)])
c.append_operation("X_ERROR", [0], 0.25)
c.append_operation("CORRELATED_ERROR",
[stim.target_x(0), stim.target_y(1)], 0.5)
c.append_operation("DETECTOR", [stim.target_rec(-1)])
c.append_operation(
"OBSERVABLE_INCLUDE",
[stim.target_rec(-1), stim.target_rec(-2)], 5)
assert str(c).strip() == """
X 0 1 2 3
CX 0 1
M 0 !1
X_ERROR(0.25) 0
E(0.5) X0 Y1
DETECTOR rec[-1]
OBSERVABLE_INCLUDE(5) rec[-1] rec[-2]
""".strip()