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version.go
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version.go
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/*
Copyright 2019 The Vitess Authors.
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.
*/
package memorytopo
import (
"fmt"
"vitess.io/vitess/go/vt/topo"
)
// NodeVersion is the local topo.Version implementation
type NodeVersion uint64
func (v NodeVersion) String() string {
return fmt.Sprintf("%v", uint64(v))
}
// VersionFromInt is used by old-style functions to create a proper
// Version: if version is -1, returns nil. Otherwise returns the
// NodeVersion object.
func VersionFromInt(version int64) topo.Version {
if version == -1 {
return nil
}
return NodeVersion(version)
}