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# SPDX-License-Identifier: Apache-2.0
# Copyright 2013-2021 The Meson development team
from __future__ import annotations
import typing as T
from .baseobjects import InterpreterObject, MesonInterpreterObject, ObjectHolder, HoldableTypes
from .exceptions import InvalidArguments
from ..mesonlib import HoldableObject, MesonBugException
if T.TYPE_CHECKING:
from .baseobjects import TYPE_var
def _unholder(obj: InterpreterObject) -> TYPE_var:
if isinstance(obj, ObjectHolder):
assert isinstance(obj.held_object, HoldableTypes)
return obj.held_object
elif isinstance(obj, MesonInterpreterObject):
return obj
elif isinstance(obj, HoldableObject):
raise MesonBugException(f'Argument {obj} of type {type(obj).__name__} is not held by an ObjectHolder.')
elif isinstance(obj, InterpreterObject):
raise InvalidArguments(f'Argument {obj} of type {type(obj).__name__} cannot be passed to a method or function')
raise MesonBugException(f'Unknown object {obj} of type {type(obj).__name__} in the parameters.')
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