66 lines
2.7 KiB
Plaintext
66 lines
2.7 KiB
Plaintext
---
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title: DAGOpNode
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description: API reference for qiskit.dagcircuit.DAGOpNode
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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.DAGOpNode
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---
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# DAGOpNode
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<Class id="qiskit.dagcircuit.DAGOpNode" isDedicatedPage={true} github="https://github.com/Qiskit/qiskit/tree/stable/1.1/qiskit/dagcircuit/dagnode.py#L258-L296" signature="qiskit.dagcircuit.DAGOpNode(op, qargs=(), cargs=(), dag=None)" modifiers="class">
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Bases: [`DAGNode`](qiskit.dagcircuit.DAGNode "qiskit.dagcircuit.dagnode.DAGNode")
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Object to represent an Instruction at a node in the DAGCircuit.
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Create an Instruction node
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## Attributes
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### op
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<Attribute id="qiskit.dagcircuit.DAGOpNode.op" />
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### qargs
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<Attribute id="qiskit.dagcircuit.DAGOpNode.qargs" />
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### cargs
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<Attribute id="qiskit.dagcircuit.DAGOpNode.cargs" />
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### sort\_key
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<Attribute id="qiskit.dagcircuit.DAGOpNode.sort_key" />
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### name
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<Attribute id="qiskit.dagcircuit.DAGOpNode.name">
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Returns the Instruction name corresponding to the op for this node
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</Attribute>
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## Methods
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### semantic\_eq
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<Function id="qiskit.dagcircuit.DAGOpNode.semantic_eq" github="https://github.com/Qiskit/qiskit/tree/stable/1.1/qiskit/dagcircuit/dagnode.py#L198-L255" signature="semantic_eq(node1, node2, bit_indices1, bit_indices2)" modifiers="static">
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Check if DAG nodes are considered equivalent, e.g., as a node\_match for [`rustworkx.is_isomorphic_node_match()`](https://www.rustworkx.org/apiref/rustworkx.is_isomorphic_node_match.html#rustworkx.is_isomorphic_node_match "(in rustworkx v0.15)").
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**Parameters**
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* **node1** ([*DAGOpNode*](#qiskit.dagcircuit.DAGOpNode "qiskit.dagcircuit.DAGOpNode")*,* [*DAGInNode*](qiskit.dagcircuit.DAGInNode "qiskit.dagcircuit.DAGInNode")*,* [*DAGOutNode*](qiskit.dagcircuit.DAGOutNode "qiskit.dagcircuit.DAGOutNode")) – A node to compare.
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* **node2** ([*DAGOpNode*](#qiskit.dagcircuit.DAGOpNode "qiskit.dagcircuit.DAGOpNode")*,* [*DAGInNode*](qiskit.dagcircuit.DAGInNode "qiskit.dagcircuit.DAGInNode")*,* [*DAGOutNode*](qiskit.dagcircuit.DAGOutNode "qiskit.dagcircuit.DAGOutNode")) – The other node to compare.
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* **bit\_indices1** ([*dict*](https://docs.python.org/3/library/stdtypes.html#dict "(in Python v3.12)")) – Dictionary mapping Bit instances to their index within the circuit containing node1
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* **bit\_indices2** ([*dict*](https://docs.python.org/3/library/stdtypes.html#dict "(in Python v3.12)")) – Dictionary mapping Bit instances to their index within the circuit containing node2
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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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