internal/flags/proto_legacy_enable.go - platform/external/golang-protobuf - Git at Google

 // Copyright 2018 The Go Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style
 // license that can be found in the LICENSE file.

 //go:build protolegacy
 // +build protolegacy

 package flags

 const protoLegacy = true
	// Copyright 2018 The Go Authors. All rights reserved.
	// Use of this source code is governed by a BSD-style
	// license that can be found in the LICENSE file.

	//go:build protolegacy
	// +build protolegacy

	package flags

	const protoLegacy = true