Quellcode für qiskit.converters.circuit_to_dagdependency

# This code is part of Qiskit.
# (C) Copyright IBM 2020.
# This code is licensed under the Apache License, Version 2.0. You may
# obtain a copy of this license in the LICENSE.txt file in the root directory
# of this source tree or at http://www.apache.org/licenses/LICENSE-2.0.
# Any modifications or derivative works of this code must retain this
# copyright notice, and modified files need to carry a notice indicating
# that they have been altered from the originals.

"""Helper function for converting a circuit to a dag dependency"""

from qiskit.dagcircuit.dagdependency import DAGDependency

[Doku]def circuit_to_dagdependency(circuit, create_preds_and_succs=True): """Build a ``DAGDependency`` object from a :class:`~.QuantumCircuit`. Args: circuit (QuantumCircuit): the input circuit. create_preds_and_succs (bool): whether to construct lists of predecessors and successors for every node. Return: DAGDependency: the DAG representing the input circuit as a dag dependency. """ dagdependency = DAGDependency() dagdependency.name = circuit.name dagdependency.metadata = circuit.metadata dagdependency.add_qubits(circuit.qubits) dagdependency.add_clbits(circuit.clbits) for register in circuit.qregs: dagdependency.add_qreg(register) for register in circuit.cregs: dagdependency.add_creg(register) for instruction in circuit.data: dagdependency.add_op_node(instruction.operation, instruction.qubits, instruction.clbits) if create_preds_and_succs: dagdependency._add_predecessors() dagdependency._add_successors() dagdependency.calibrations = circuit.calibrations return dagdependency