From e344383da66ac9cf11000f824674793a77fc7d7e Mon Sep 17 00:00:00 2001 From: Abhilash Pallerlamudi Date: Thu, 10 Nov 2022 16:10:49 -0800 Subject: [PATCH] protoadapt: helper functions to convert v1 or v2 message to either v1 or v2 message. Fixes golang/protobuf#1442 Change-Id: I7ec60982be81d5dc060094ccec51d819b17a3a8f Reviewed-on: https://go-review.googlesource.com/c/protobuf/+/449576 Reviewed-by: Michael Stapelberg Reviewed-by: Damien Neil Reviewed-by: Lasse Folger --- protoadapt/convert.go | 31 +++++++++++++++++++++++++++++++ 1 file changed, 31 insertions(+) create mode 100644 protoadapt/convert.go diff --git a/protoadapt/convert.go b/protoadapt/convert.go new file mode 100644 index 000000000..ce172386b --- /dev/null +++ b/protoadapt/convert.go @@ -0,0 +1,31 @@ +// Copyright 2023 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. + +// Package protoadapt bridges the original and new proto APIs. +package protoadapt + +import ( + "google.golang.org/protobuf/proto" + "google.golang.org/protobuf/runtime/protoiface" + "google.golang.org/protobuf/runtime/protoimpl" +) + +// MessageV1 is the original "github.com/golang/protobuf/proto".Message type. +type MessageV1 = protoiface.MessageV1 + +// MessageV2 is the Message type used by the current google.golang.org/protobuf +// module, adding support for reflection. +type MessageV2 = proto.Message + +// MessageV1Of converts a v2 message to a v1 message. +// It returns nil if m is nil. +func MessageV1Of(m MessageV2) protoiface.MessageV1 { + return protoimpl.X.ProtoMessageV1Of(m) +} + +// MessageV2Of converts a v1 message to a v2 message. +// It returns nil if m is nil. +func MessageV2Of(m MessageV1) proto.Message { + return protoimpl.X.ProtoMessageV2Of(m) +}