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# 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
from .. import mesonlib, mparser
from .exceptions import InterpreterException
import collections.abc
import typing as T
if T.TYPE_CHECKING:
from .baseobjects import TYPE_var, TYPE_kwargs
def flatten(args: T.Union['TYPE_var', T.List['TYPE_var']]) -> T.List['TYPE_var']:
if isinstance(args, mparser.StringNode):
assert isinstance(args.value, str)
return [args.value]
if not isinstance(args, collections.abc.Sequence):
return [args]
result: T.List['TYPE_var'] = []
for a in args:
if isinstance(a, list):
rest = flatten(a)
result = result + rest
elif isinstance(a, mparser.StringNode):
result.append(a.value)
else:
result.append(a)
return result
def resolve_second_level_holders(args: T.List['TYPE_var'], kwargs: 'TYPE_kwargs') -> T.Tuple[T.List['TYPE_var'], 'TYPE_kwargs']:
def resolver(arg: 'TYPE_var') -> 'TYPE_var':
if isinstance(arg, list):
return [resolver(x) for x in arg]
if isinstance(arg, dict):
return {k: resolver(v) for k, v in arg.items()}
if isinstance(arg, mesonlib.SecondLevelHolder):
return arg.get_default_object()
return arg
return [resolver(x) for x in args], {k: resolver(v) for k, v in kwargs.items()}
def default_resolve_key(key: mparser.BaseNode) -> str:
if not isinstance(key, mparser.IdNode):
raise InterpreterException('Invalid kwargs format.')
return key.value