Source code for qiskit.circuit.controlflow.control_flow
# This code is part of Qiskit.
# (C) Copyright IBM 2021.
# 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.
"Container to encapsulate all control flow operations."
from abc import ABC, abstractmethod
from typing import Tuple, Iterable
from qiskit.circuit import QuantumCircuit, Instruction
[docs]class ControlFlowOp(Instruction, ABC):
"""Abstract class to encapsulate all control flow operations."""
def blocks(self) -> Tuple[QuantumCircuit, ...]:
"""Tuple of QuantumCircuits which may be executed as part of the
execution of this ControlFlowOp. May be parameterized by a loop
parameter to be resolved at run time.
def replace_blocks(self, blocks: Iterable[QuantumCircuit]) -> "ControlFlowOp":
"""Replace blocks and return new instruction.
blocks: Tuple of QuantumCircuits to replace in instruction.
New ControlFlowOp with replaced blocks.