mirror of
https://github.com/bazelbuild/bazel-skylib
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44 lines
1.6 KiB
Python
44 lines
1.6 KiB
Python
# Copyright 2017 The Bazel Authors. All rights reserved.
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#
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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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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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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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"""Skylib module containing functions that operate on dictionaries."""
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def _add(*dictionaries, **kwargs):
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"""Returns a new `dict` that has all the entries of the given dictionaries.
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If the same key is present in more than one of the input dictionaries, the
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last of them in the argument list overrides any earlier ones.
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This function is designed to take zero or one arguments as well as multiple
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dictionaries, so that it follows arithmetic identities and callers can avoid
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special cases for their inputs: the sum of zero dictionaries is the empty
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dictionary, and the sum of a single dictionary is a copy of itself.
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Args:
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*dictionaries: Zero or more dictionaries to be added.
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**kwargs: Additional dictionary passed as keyword args.
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Returns:
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A new `dict` that has all the entries of the given dictionaries.
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"""
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result = {}
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for d in dictionaries:
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result.update(d)
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result.update(kwargs)
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return result
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dicts = struct(
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add = _add,
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)
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