compat/json: Handle io.EOF and io.ErrUnexpectedEOF the same

1 files changed, 12 insertions, 13 deletions

diff --git a/compat/json/compat.go b/compat/json/compat.go
index 6f13fbb..4dc15ab 100644
--- a/compat/json/compat.go
+++ b/compat/json/compat.go
@@ -53,19 +53,18 @@ func convertError(err error, isUnmarshal bool) error {
 		case *lowmemjson.DecodeReadError:
 			return err
 		case *lowmemjson.DecodeSyntaxError:
-			switch {
-			case errors.Is(err, io.EOF):
-				return io.EOF
-			case errors.Is(err, io.ErrUnexpectedEOF) && isUnmarshal:
-				return &SyntaxError{
-					msg:    "unexpected end of JSON input",
-					Offset: suberr.Offset,
-				}
-			default:
-				return &SyntaxError{
-					msg:    suberr.Err.Error(),
-					Offset: suberr.Offset + 1,
+			if errors.Is(err, io.EOF) || errors.Is(err, io.ErrUnexpectedEOF) {
+				if isUnmarshal {
+					return &SyntaxError{
+						msg:    "unexpected end of JSON input",
+						Offset: suberr.Offset,
+					}
 				}
+				return suberr.Err
+			}
+			return &SyntaxError{
+				msg:    suberr.Err.Error(),
+				Offset: suberr.Offset + 1,
 			}
 		case *lowmemjson.DecodeTypeError:
 			switch subsuberr := suberr.Err.(type) {
@@ -120,7 +119,7 @@ func convertError(err error, isUnmarshal bool) error {
 			msg:    err.Err.Error(),
 			Offset: err.Offset + 1,
 		}
-		if errors.Is(err, io.ErrUnexpectedEOF) {
+		if errors.Is(err, io.EOF) || errors.Is(err, io.ErrUnexpectedEOF) {
 			ret.msg = "unexpected end of JSON input"
 		}
 		return ret