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39 lines
1.8 KiB
39 lines
1.8 KiB
# Copyright 2013-2021 The Meson development team |
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# Licensed under the Apache License, Version 2.0 (the "License"); |
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# you may not use this file except in compliance with the License. |
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# You may obtain a copy of the License at |
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# http://www.apache.org/licenses/LICENSE-2.0 |
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# Unless required by applicable law or agreed to in writing, software |
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# distributed under the License is distributed on an "AS IS" BASIS, |
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
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# See the License for the specific language governing permissions and |
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# limitations under the License. |
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from .baseobjects import InterpreterObject, MesonInterpreterObject, ObjectHolder, TYPE_var |
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from .exceptions import InvalidArguments |
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from ..mesonlib import HoldableObject, MesonBugException |
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import typing as T |
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def _unholder(obj: T.Union[TYPE_var, InterpreterObject], *, permissive: bool = False) -> TYPE_var: |
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if isinstance(obj, (int, bool, str)): |
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return obj |
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elif isinstance(obj, list): |
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return [_unholder(x, permissive=permissive) for x in obj] |
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elif isinstance(obj, dict): |
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return {k: _unholder(v, permissive=permissive) for k, v in obj.items()} |
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elif isinstance(obj, ObjectHolder): |
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assert isinstance(obj.held_object, HoldableObject) |
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return obj.held_object |
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elif isinstance(obj, MesonInterpreterObject): |
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return obj |
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elif isinstance(obj, HoldableObject) and permissive: |
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return obj |
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elif isinstance(obj, HoldableObject): |
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raise MesonBugException(f'Argument {obj} of type {type(obj).__name__} is not held by an ObjectHolder.') |
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elif isinstance(obj, InterpreterObject): |
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raise InvalidArguments(f'Argument {obj} of type {type(obj).__name__} cannot be passed to a method or function') |
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raise MesonBugException(f'Unknown object {obj} of type {type(obj).__name__} in the parameters.')
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