# Copyright 2018 The Cirq Developers
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# https://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
from typing import TYPE_CHECKING
from cirq.google.line.placement import greedy
from cirq.google.line.placement.place_strategy import LinePlacementStrategy
from cirq.google.line.placement.sequence import GridQubitLineTuple
if TYPE_CHECKING:
# pylint: disable=unused-import
import cirq.google
[docs]def line_on_device(
device: 'cirq.google.XmonDevice',
length: int,
method: LinePlacementStrategy = greedy.GreedySequenceSearchStrategy()
) -> GridQubitLineTuple:
"""Searches for linear sequence of qubits on device.
Args:
device: Google Xmon device instance.
length: Desired number of qubits making up the line.
method: Line placement method. Defaults to
cirq.greedy.GreedySequenceSearchMethod.
Returns:
Line sequences search results.
"""
return method.place_line(device, length)