protobuf-go/proto/proto.go
Damien Neil 01b51b4f96 proto, internal/errors: add Error sentinel, errors.Wrap
Add a sentinel proto.Error error which matches all errors returned by
packages in this module.

Document that protoregistry.NotFound is an exact sentinel value for
performance reasons.

Add a Wrap function to the internal/errors package and use it to wrap
errors from outside sources (resolvers). Wrapped errors match
proto.Error.

Fixes golang/protobuf#1021.

Change-Id: I45567df3fd6c8dc9a5caafdb55654827f6fb1941
Reviewed-on: https://go-review.googlesource.com/c/protobuf/+/215338
Reviewed-by: Joe Tsai <joetsai@google.com>
2020-02-07 21:09:48 +00:00

24 lines
619 B
Go

// 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.
package proto
import (
"google.golang.org/protobuf/internal/errors"
"google.golang.org/protobuf/reflect/protoreflect"
)
// Message is the top-level interface that all messages must implement.
type Message = protoreflect.ProtoMessage
// Error matches all errors produced by packages in the protobuf module.
//
// That is, errors.Is(err, Error) reports whether an error is produced
// by this module.
var Error error
func init() {
Error = errors.Error
}