112 lines
3.5 KiB
Plaintext
112 lines
3.5 KiB
Plaintext
---
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title: DAGDepNode (v1.2)
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description: API reference for qiskit.dagcircuit.DAGDepNode in qiskit v1.2
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in_page_toc_min_heading_level: 1
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python_api_type: class
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python_api_name: qiskit.dagcircuit.DAGDepNode
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---
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# DAGDepNode
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<Class id="qiskit.dagcircuit.DAGDepNode" isDedicatedPage={true} github="https://github.com/Qiskit/qiskit/tree/stable/1.2/qiskit/dagcircuit/dagdepnode.py#L21-L160" signature="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)" modifiers="class">
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Bases: [`object`](https://docs.python.org/3/library/functions.html#object "(in Python v3.13)")
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Object to represent the information at a node in the DAGDependency().
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It is used as the return value from \*\_nodes() functions and can be supplied to functions that take a node.
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## Attributes
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### type
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<Attribute id="qiskit.dagcircuit.DAGDepNode.type" />
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### name
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<Attribute id="qiskit.dagcircuit.DAGDepNode.name" />
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### cargs
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<Attribute id="qiskit.dagcircuit.DAGDepNode.cargs" />
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### sort\_key
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<Attribute id="qiskit.dagcircuit.DAGDepNode.sort_key" attributeTypeHint="str" />
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### node\_id
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<Attribute id="qiskit.dagcircuit.DAGDepNode.node_id" />
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### successors
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<Attribute id="qiskit.dagcircuit.DAGDepNode.successors" attributeTypeHint="list[int]" />
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### predecessors
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<Attribute id="qiskit.dagcircuit.DAGDepNode.predecessors" attributeTypeHint="list[int]" />
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### reachable
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<Attribute id="qiskit.dagcircuit.DAGDepNode.reachable" />
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### matchedwith
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<Attribute id="qiskit.dagcircuit.DAGDepNode.matchedwith" attributeTypeHint="list[int]" />
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### isblocked
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<Attribute id="qiskit.dagcircuit.DAGDepNode.isblocked" attributeTypeHint="bool" />
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### successorstovisit
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<Attribute id="qiskit.dagcircuit.DAGDepNode.successorstovisit" attributeTypeHint="list[int]" />
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### qindices
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<Attribute id="qiskit.dagcircuit.DAGDepNode.qindices" attributeTypeHint="list[int]" />
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### cindices
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<Attribute id="qiskit.dagcircuit.DAGDepNode.cindices" attributeTypeHint="list[int]" />
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### op
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<Attribute id="qiskit.dagcircuit.DAGDepNode.op">
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Returns the Instruction object corresponding to the op for the node, else None
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</Attribute>
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### qargs
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<Attribute id="qiskit.dagcircuit.DAGDepNode.qargs">
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Returns list of Qubit, else an empty list.
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</Attribute>
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## Methods
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### copy
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<Function id="qiskit.dagcircuit.DAGDepNode.copy" github="https://github.com/Qiskit/qiskit/tree/stable/1.2/qiskit/dagcircuit/dagdepnode.py#L135-L160" signature="copy()">
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Function to copy a DAGDepNode object. :returns: a copy of a DAGDepNode object. :rtype: DAGDepNode
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</Function>
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### semantic\_eq
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<Function id="qiskit.dagcircuit.DAGDepNode.semantic_eq" github="https://github.com/Qiskit/qiskit/tree/stable/1.2/qiskit/dagcircuit/dagdepnode.py#L106-L133" signature="semantic_eq(node1, node2)" modifiers="static">
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Check if DAG nodes are considered equivalent, e.g., as a node\_match for nx.is\_isomorphic.
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**Parameters**
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* **node1** ([*DAGDepNode*](#qiskit.dagcircuit.DAGDepNode "qiskit.dagcircuit.DAGDepNode")) – A node to compare.
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* **node2** ([*DAGDepNode*](#qiskit.dagcircuit.DAGDepNode "qiskit.dagcircuit.DAGDepNode")) – The other node to compare.
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**Returns**
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If node1 == node2
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**Return type**
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[Bool](circuit_classical#qiskit.circuit.classical.types.Bool "qiskit.circuit.classical.types.Bool")
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</Function>
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</Class>
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