From 8c0513a04ff3870f57bde230507aaa8c6b7e6e86 Mon Sep 17 00:00:00 2001
From: Luke Shumaker <lukeshu@datawire.io>
Date: Tue, 16 Aug 2022 00:15:57 -0600
Subject: Get borrowed_decode_test.go passing

---
 decode_scan.go | 30 ++++++++++++++++++++++++------
 1 file changed, 24 insertions(+), 6 deletions(-)

(limited to 'decode_scan.go')

diff --git a/decode_scan.go b/decode_scan.go
index 3c41df6..fee9ec6 100644
--- a/decode_scan.go
+++ b/decode_scan.go
@@ -34,20 +34,37 @@ type runeTypeScannerImpl struct {
 	parser Parser
 	offset int64
 
-	repeat bool
-	stuck  bool
-	rRune  rune
-	rSize  int
-	rType  RuneType
-	rErr   error
+	repeat  bool
+	stuck   bool
+	rRune   rune
+	rRuneOK bool
+	rSize   int
+	rType   RuneType
+	rErr    error
 }
 
 var _ runeTypeScanner = (*runeTypeScannerImpl)(nil)
 
 func (sc *runeTypeScannerImpl) Reset() {
 	sc.parser.Reset()
+	unread := sc.stuck && sc.rType == RuneTypeEOF && sc.rRuneOK
 	sc.stuck = false
 	sc.repeat = false
+	if unread {
+		// re-figure the rType and rErr
+		var err error
+		sc.rType, err = sc.parser.HandleRune(sc.rRune)
+		if err != nil {
+			sc.rErr = &DecodeSyntaxError{
+				Offset: sc.offset,
+				Err:    err,
+			}
+		} else {
+			sc.rErr = nil
+		}
+		// tell it to use that rType and rErr
+		sc.UnreadRune()
+	}
 }
 
 func (sc *runeTypeScannerImpl) ReadRuneType() (rune, int, RuneType, error) {
@@ -62,6 +79,7 @@ func (sc *runeTypeScannerImpl) ReadRuneType() (rune, int, RuneType, error) {
 		var err error
 		sc.rRune, sc.rSize, err = sc.inner.ReadRune()
 		sc.offset += int64(sc.rSize)
+		sc.rRuneOK = err == nil
 		switch err {
 		case nil:
 			sc.rType, err = sc.parser.HandleRune(sc.rRune)
-- 
cgit v1.2.3-2-g168b