def test_gate_on_operation_besides_gate_operation():
a, b = cirq.LineQubit.range(2)
assert cirq.op_gate_of_type(
-1j * cirq.X(a) * cirq.Y(b),
cirq.DensePauliString) == -1j * cirq.DensePauliString('XY')
assert cirq.op_gate_isinstance(-1j * cirq.X(a) * cirq.Y(b),
cirq.DensePauliString)
assert not cirq.op_gate_isinstance(-1j * cirq.X(a) * cirq.Y(b),
cirq.XPowGate)
def test_op_gate_isinstance():
a = cirq.NamedQubit('a')
op = cirq.X(a)
assert cirq.op_gate_isinstance(op, cirq.XPowGate)
assert not cirq.op_gate_isinstance(op, cirq.YPowGate)
class NonGateOperation(cirq.Operation):
def qubits(self):
pass
def with_qubits(self, *new_qubits):
pass
assert not cirq.op_gate_isinstance(NonGateOperation(), cirq.XPowGate)
assert not cirq.op_gate_isinstance(NonGateOperation(), NonGateOperation)
def simulate_op(op, temp_state):
indices = [qubit_map[q] for q in op.qubits]
if cirq.op_gate_isinstance(op, cirq.ResetChannel):
self._simulate_reset(op, cirq.ResetChannel)
elif cirq.is_measurement(op):
if perform_measurements:
self._simulate_measurement(
op, temp_state, indices, measurements)
elif cirq.has_mixture(op):
self._simulate_mixture(op, temp_state, indices)
else:
if cirq.num_qubits(op) <= 3:
self._simulate_unitary(op, temp_state, indices)
else:
decomp_ops = cirq.decompose_once(op, default=None)
if decomp_ops is None:
self._simulate_unitary(op, temp_state, indices)
else:
for sub_op in cirq.flatten_op_tree(decomp_ops):
simulate_op(sub_op, temp_state)
def simulate_op(op, temp_state):
indices = [qubit_map[q] for q in op.qubits]
if cirq.op_gate_isinstance(op, cirq.ResetChannel):
self._simulate_reset(op, cirq.ResetChannel)
elif cirq.is_measurement(op):
if perform_measurements:
self._simulate_measurement(
op, temp_state, indices, measurements)
elif cirq.has_mixture(op):
self._simulate_mixture(op, temp_state, indices)
else:
decomp_ops = cirq.decompose_once(op, default=None)
if decomp_ops is None:
self._simulate_unitary(op, temp_state, indices)
else:
try:
temp2_state = temp_state.copy()
for sub_op in cirq.flatten_op_tree(decomp_ops):
simulate_op(sub_op, temp2_state)
temp_state[...] = temp2_state
except ValueError:
# Non-classical unitary in the decomposition
self._simulate_unitary(op, temp_state, indices)
def keep(potential_op):
return (cirq.has_unitary(potential_op) or
cirq.has_mixture(potential_op) or
cirq.is_measurement(potential_op) or
cirq.op_gate_isinstance(potential_op, cirq.ResetChannel))