61 lines
2.3 KiB
Python
61 lines
2.3 KiB
Python
# -*- coding: utf-8 -*-
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# Copyright (C) 2017-2021 Team tiramisu (see AUTHORS for all contributors)
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#
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# This program is free software: you can redistribute it and/or modify it
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# under the terms of the GNU Lesser General Public License as published by the
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# Free Software Foundation, either version 3 of the License, or (at your
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# option) any later version.
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#
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# This program is distributed in the hope that it will be useful, but WITHOUT
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# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
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# FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
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# details.
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#
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# You should have received a copy of the GNU Lesser General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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#
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# The original `Config` design model is unproudly borrowed from
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# the rough pypy's guys: http://codespeak.net/svn/pypy/dist/pypy/config/
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# the whole pypy projet is under MIT licence
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# ____________________________________________________________
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from typing import Any
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from .baseoption import BaseOption, valid_name
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from ..i18n import _
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class SymLinkOption(BaseOption):
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__slots__ = ('_opt',)
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def __init__(self,
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name: str,
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opt: BaseOption) -> None:
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if not valid_name(name):
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raise ValueError(_('"{0}" is an invalid name for an option').format(name))
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if not isinstance(opt, BaseOption) or \
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opt.impl_is_optiondescription() or \
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opt.impl_is_symlinkoption():
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raise ValueError(_('malformed symlinkoption must be an option for symlink {0}'
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'').format(name))
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_setattr = object.__setattr__
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_setattr(self, '_name', name)
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_setattr(self, '_opt', opt)
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opt._add_dependency(self)
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self._path = None
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def __getattr__(self,
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name: str) -> Any:
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return getattr(self._opt, name)
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def impl_has_dependency(self,
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self_is_dep: bool=True) -> bool:
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"""If self_is_dep is True, it has dependency (self._opt), so return True
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if self_is_dep is False, cannot has validation or callback, so return False
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"""
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return self_is_dep
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def impl_is_symlinkoption(self) -> bool:
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return True
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def impl_getopt(self) -> BaseOption:
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return self._opt
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