def apply(self, program, accelerator, options):
# Import qiskit modules here so that users
# who don't have qiskit can still use rest of xacc
from pyzx.circuit import Circuit
from pyzx import simplify, extract, optimize
# Map CompositeInstruction program to OpenQasm string
openqasm_compiler = xacc.getCompiler('staq')
src = openqasm_compiler.translate(program).replace('\\','')
measures = []
lines = src.split('\n')
for l in lines:
if 'measure' in l or 'creg' in l:
measures.append(l)
c = Circuit.from_qasm(src)
g = c.to_graph()
simplify.full_reduce(g,quiet=True)
c2 = extract.extract_circuit(g)
c3 = optimize.basic_optimization(c2.to_basic_gates())
c3 = c3.to_basic_gates()
c3 = c3.split_phase_gates()
output = c3.to_qasm()
for measure in measures:
output += '\n' + measure
# Map the output to OpenQasm and map to XACC IR
out_prog = openqasm_compiler.compile(output, accelerator).getComposites()[0]
# update the given program CompositeInstruction reference
program.clear()
for inst in out_prog.getInstructions():
program.addInstruction(inst)
return
def test_to_qasm_and_back(self):
s = self.c.to_qasm()
c2 = Circuit.from_qasm(s)
self.assertEqual(self.c.qubits, c2.qubits)
self.assertListEqual(self.c.gates, c2.gates)