diff options
Diffstat (limited to 'vendor/github.com/google/go-cmp/cmp/options.go')
| -rw-r--r-- | vendor/github.com/google/go-cmp/cmp/options.go | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/vendor/github.com/google/go-cmp/cmp/options.go b/vendor/github.com/google/go-cmp/cmp/options.go index 754496f3b..ba3fce81f 100644 --- a/vendor/github.com/google/go-cmp/cmp/options.go +++ b/vendor/github.com/google/go-cmp/cmp/options.go @@ -232,7 +232,15 @@ func (validator) apply(s *state, vx, vy reflect.Value) { if t := s.curPath.Index(-2).Type(); t.Name() != "" { // Named type with unexported fields. name = fmt.Sprintf("%q.%v", t.PkgPath(), t.Name()) // e.g., "path/to/package".MyType - if _, ok := reflect.New(t).Interface().(error); ok { + isProtoMessage := func(t reflect.Type) bool { + m, ok := reflect.PointerTo(t).MethodByName("ProtoReflect") + return ok && m.Type.NumIn() == 1 && m.Type.NumOut() == 1 && + m.Type.Out(0).PkgPath() == "google.golang.org/protobuf/reflect/protoreflect" && + m.Type.Out(0).Name() == "Message" + } + if isProtoMessage(t) { + help = `consider using "google.golang.org/protobuf/testing/protocmp".Transform to compare proto.Message types` + } else if _, ok := reflect.New(t).Interface().(error); ok { help = "consider using cmpopts.EquateErrors to compare error values" } else if t.Comparable() { help = "consider using cmpopts.EquateComparable to compare comparable Go types" |