qiskit/transpiler/passes/mapping/lookahead_swap.py
def _swap_ops_from_edge(edge, layout):
    """Generate list of ops to implement a SWAP gate along a coupling edge."""

    device_qreg = QuantumRegister(len(layout.get_physical_bits()), 'q')
    qreg_edge = [(device_qreg, i) for i in edge]

    # TODO shouldn't be making other nodes not by the DAG!!
    return [
        DAGNode({'op': SwapGate(), 'qargs': qreg_edge, 'cargs': [], 'type': 'op'})
    ]
def _swap_ops_from_edge(edge, layout):
    device_qreg = QuantumRegister(len(layout.get_physical_bits()), 'q')
    qreg_edge = [(device_qreg, i) for i in edge]

    # TODO shouldn't be making other nodes not by the DAG!!
    return [
        DAGNode({'op': SwapGate(), 'qargs': qreg_edge, 'cargs': [], 'type': 'op'})
    ]
def _swap_ops_from_edge ( edge , layout ) : device_qreg = QuantumRegister ( len ( layout . get_physical_bits ( ) ) , 'q' ) qreg_edge = [ ( device_qreg , i ) for i in edge ] # TODO shouldn't be making other nodes not by the DAG!! return [ DAGNode ( { 'op' : SwapGate ( ) , 'qargs' : qreg_edge , 'cargs' : [ ] , 'type' : 'op' } ) ]
Generate list of ops to implement a SWAP gate along a coupling edge.
Generate list of ops to implement a SWAP gate along a coupling edge .