def __pow__(self, power):
if power == 1:
return self
if power == -1:
# HACK: break cycle
from cirq.line import line_qubit
decomposed = decompose.decompose_once_with_qubits(
self,
qubits=line_qubit.LineQubit.range(self.num_qubits()),
default=None)
if decomposed is None:
return NotImplemented
inverse_decomposed = inverse.inverse(decomposed, None)
if inverse_decomposed is None:
return NotImplemented
return _InverseCompositeGate(self)
return NotImplemented
def _decompose_(self, qubits):
return inverse.inverse(
decompose.decompose_once_with_qubits(self._original, qubits))
