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qiskit.converters.ast_to_dag

ast_to_dag(ast)[source]

Build a DAGCircuit object from an AST Node object.

প্যারামিটার

ast (Program) -- a Program Node of an AST (parser's output)

রিটার্নস

the DAG representing an OpenQASM's AST

রিটার্ন টাইপ

DAGCircuit

রেইজেস

QiskitError -- if the AST is malformed.

Example

from qiskit.converters import ast_to_dag
from qiskit import qasm, QuantumCircuit, ClassicalRegister, QuantumRegister

q = QuantumRegister(3, 'q')
c = ClassicalRegister(3, 'c')
circ = QuantumCircuit(q, c)
circ.h(q[0])
circ.cx(q[0], q[1])
circ.measure(q[0], c[0])
circ.rz(0.5, q[1]).c_if(c, 2)
qasm_str = circ.qasm()
ast = qasm.Qasm(data=qasm_str).parse()
dag = ast_to_dag(ast)