36 lines
1 KiB
Go
36 lines
1 KiB
Go
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// Copyright 2017, OpenCensus Authors
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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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//
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package tag
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// Key represents a tag key.
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type Key struct {
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name string
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}
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// NewKey creates or retrieves a string key identified by name.
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// Calling NewKey consequently with the same name returns the same key.
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func NewKey(name string) (Key, error) {
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if !checkKeyName(name) {
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return Key{}, errInvalidKeyName
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}
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return Key{name: name}, nil
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}
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// Name returns the name of the key.
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func (k Key) Name() string {
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return k.name
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}
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