# Copyright 2025 qBraid
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
"""
Module containing OpenQASM 2 conversion extras.
"""
from __future__ import annotations
from typing import TYPE_CHECKING
from qbraid_core._import import LazyLoader
from qbraid.transpiler.annotations import requires_extras
qibo = LazyLoader("qibo", globals(), "qibo")
pyqpanda3 = LazyLoader("pyqpanda3", globals(), "pyqpanda3")
if TYPE_CHECKING:
import pyqpanda3 as pyqpanda3_ # type: ignore
import qibo as qibo_ # type: ignore
from qbraid.programs.typer import Qasm2StringType
[docs]
@requires_extras("qibo")
def qasm2_to_qibo(qasm: Qasm2StringType) -> qibo_.Circuit:
"""Returns a qibo.Circuit equivalent to the input OpenQASM 2 circuit.
Args:
qasm: OpenQASM 2 string to convert to a qibo.Circuit
Returns:
qibo.Circuit object equivalent to the input OpenQASM 2 string.
"""
# Remove problematic comment lines in the qasm code
lines = [
line.replace(", ", ",") for line in qasm.split("\n") if not line.strip().startswith("//")
]
# Remove in line problematic comments
clean_lines = []
for line in lines:
clean_line = line.split("//")[0].strip()
if clean_line:
clean_lines.append(clean_line)
qasm = "\n".join(clean_lines)
return qibo.Circuit.from_qasm(qasm)
[docs]
@requires_extras("qibo")
def qibo_to_qasm2(circuit: qibo_.Circuit) -> Qasm2StringType:
"""Returns an OpenQASM 2 string equivalent to the input qibo.Circuit.
Args:
circuit: qibo.Circuit object to convert to OpenQASM 2 string.
Returns:
OpenQASM 2 string equivalent to the input qibo.Circuit.
"""
return circuit.to_qasm()
[docs]
@requires_extras("pyqpanda3")
def qasm2_to_pyqpanda3(qasm: Qasm2StringType) -> pyqpanda3_.core.QProg:
"""Returns a pyqpande3.core.QProg equivalent to the input OpenQASM 2 circuit.
Args:
qasm: OpenQASM 2 string to convert to a pyqpanda3.core.QProg
Returns:
pyqpanda3.core.QProg object equivalent to the input OpenQASM 2 string.
"""
return pyqpanda3.intermediate_compiler.convert_qasm_string_to_qprog(qasm)
[docs]
@requires_extras("pyqpanda3")
def pyqpanda3_to_qasm2(circuit: pyqpanda3_.core.QProg) -> Qasm2StringType:
"""Returns an OpenQASM 2 string equivalent to the input pyqpanda3.core.QProg.
Args:
circuit: pyqpanda3.core.QProg object to convert to OpenQASM 2 string.
Returns:
OpenQASM 2 string equivalent to the input pyqpanda3.core.QProg.
"""
return pyqpanda3.intermediate_compiler.convert_qprog_to_qasm(circuit)