meson/mesonbuild/interpreterbase/disabler.py

# 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 .baseobjects import MesonInterpreterObject, TYPE_var, TYPE_kwargs
import typing as T

class Disabler(MesonInterpreterObject):
    def method_call(self, method_name: str, args: T.List[TYPE_var], kwargs: TYPE_kwargs) -> TYPE_var:
        if method_name == 'found':
            return False
        return Disabler()

def _is_arg_disabled(arg: T.Any) -> bool:
    if isinstance(arg, Disabler):
        return True
    if isinstance(arg, list):
        for i in arg:
            if _is_arg_disabled(i):
                return True
    return False

def is_disabled(args: T.Sequence[T.Any], kwargs: T.Dict[str, T.Any]) -> bool:
    for i in args:
        if _is_arg_disabled(i):
            return True
    for i in kwargs.values():
        if _is_arg_disabled(i):
            return True
    return False