DAGDepNode
class qiskit.dagcircuit.DAGDepNode(type=None, op=None, name=None, qargs=(), cargs=(), successors=None, predecessors=None, reachable=None, matchedwith=None, successorstovisit=None, isblocked=None, qindices=None, cindices=None, nid=-1)
Bases: object
Object to represent the information at a node in the DAGDependency().
It is used as the return value from *_nodes() functions and can be supplied to functions that take a node.
Attributes
type
name
cargs
sort_key
node_id
successors
predecessors
reachable
matchedwith
isblocked
successorstovisit
qindices
cindices
op
Returns the Instruction object corresponding to the op for the node, else None
qargs
Returns list of Qubit, else an empty list.
Methods
copy
copy()
Function to copy a DAGDepNode object. :returns: a copy of a DAGDepNode object. :rtype: DAGDepNode
semantic_eq
static semantic_eq(node1, node2)
Check if DAG nodes are considered equivalent, e.g., as a node_match for nx.is_isomorphic.
Parameters
- node1 (DAGDepNode) – A node to compare.
- node2 (DAGDepNode) – The other node to compare.
Returns
If node1 == node2
Return type