| # Copyright 2013-2021 The Meson development team |
| |
| # 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. |
| 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.') |