kubernetes import_tracker 源码

  • 2022-09-18
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kubernetes import_tracker 代码

文件路径:/staging/src/k8s.io/code-generator/cmd/go-to-protobuf/protobuf/import_tracker.go

/*
Copyright 2015 The Kubernetes 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 protobuf

import (
	"k8s.io/gengo/namer"
	"k8s.io/gengo/types"
)

type ImportTracker struct {
	namer.DefaultImportTracker
}

func NewImportTracker(local types.Name, typesToAdd ...*types.Type) *ImportTracker {
	tracker := namer.NewDefaultImportTracker(local)
	tracker.IsInvalidType = func(t *types.Type) bool { return t.Kind != types.Protobuf }
	tracker.LocalName = func(name types.Name) string { return name.Package }
	tracker.PrintImport = func(path, name string) string { return path }

	tracker.AddTypes(typesToAdd...)
	return &ImportTracker{
		DefaultImportTracker: tracker,
	}
}

// AddNullable ensures that support for the nullable Gogo-protobuf extension is added.
func (tracker *ImportTracker) AddNullable() {
	tracker.AddType(&types.Type{
		Kind: types.Protobuf,
		Name: types.Name{
			Name:    "nullable",
			Package: "gogoproto",
			Path:    "github.com/gogo/protobuf/gogoproto/gogo.proto",
		},
	})
}

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