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42 lines
1.2 KiB
Go
42 lines
1.2 KiB
Go
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/*
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Copyright 2024 The Kubernetes Authors.
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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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*/
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package api
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import (
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"unique"
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)
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// NullUniqueString is a UniqueString which contains no string.
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var NullUniqueString UniqueString
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// UniqueString is a wrapper around [unique.Handle[string]].
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type UniqueString unique.Handle[string]
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// Returns the string that is stored in the UniqueString.
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// If the UniqueString is null, the empty string is returned.
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func (us UniqueString) String() string {
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if us == NullUniqueString {
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return ""
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}
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return unique.Handle[string](us).Value()
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}
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// MakeUniqueString constructs a new unique string.
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func MakeUniqueString(str string) UniqueString {
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return UniqueString(unique.Make(str))
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}
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