C贸digo fuente para qiskit.pulse.transforms.base_transforms

# This code is part of Qiskit.
# (C) Copyright IBM 2021.
# This code is licensed under the Apache License, Version 2.0. You may
# obtain a copy of this license in the LICENSE.txt file in the root directory
# of this source tree or at http://www.apache.org/licenses/LICENSE-2.0.
# Any modifications or derivative works of this code must retain this
# copyright notice, and modified files need to carry a notice indicating
# that they have been altered from the originals.
"""A collection of set of transforms."""

# TODO: replace this with proper pulse transformation passes. Qiskit-terra/#6121

from typing import Union, Iterable, Tuple

from qiskit.pulse.instructions import Instruction
from qiskit.pulse.schedule import ScheduleBlock, Schedule
from qiskit.pulse.transforms import canonicalization

InstructionSched = Union[Tuple[int, Instruction], Instruction]

[documentos]def target_qobj_transform( sched: Union[ScheduleBlock, Schedule, InstructionSched, Iterable[InstructionSched]], remove_directives: bool = True, ) -> Schedule: """A basic pulse program transformation for OpenPulse API execution. Args: sched: Input program to transform. remove_directives: Set `True` to remove compiler directives. Returns: Transformed program for execution. """ if not isinstance(sched, Schedule): # convert into schedule representation if isinstance(sched, ScheduleBlock): sched = canonicalization.block_to_schedule(sched) else: sched = Schedule(*_format_schedule_component(sched)) # remove subroutines, i.e. Call instructions sched = canonicalization.inline_subroutines(sched) # inline nested schedules sched = canonicalization.flatten(sched) # remove directives, e.g. barriers if remove_directives: sched = canonicalization.remove_directives(sched) return sched
def _format_schedule_component(sched: Union[InstructionSched, Iterable[InstructionSched]]): """A helper function to convert instructions into list of instructions.""" # TODO remove schedule initialization with *args, Qiskit-terra/#5093 try: sched = list(sched) # (t0, inst), or list of it if isinstance(sched[0], int): # (t0, inst) tuple return [tuple(sched)] else: return sched except TypeError: return [sched]