From 2b6a4ece366b83ddd53d91b41a62b9c5d548958d Mon Sep 17 00:00:00 2001
From: Luke Shumaker <lukeshu@lukeshu.com>
Date: Fri, 10 Feb 2023 18:46:00 -0700
Subject: decode: Have .expectRuneType() return a *DecodeError

---
 decode.go | 18 ++++++++++++------
 1 file changed, 12 insertions(+), 6 deletions(-)

diff --git a/decode.go b/decode.go
index 77652af..60667c0 100644
--- a/decode.go
+++ b/decode.go
@@ -302,12 +302,12 @@ func (dec *Decoder) expectRune(ec rune, et jsonparse.RuneType) {
 	}
 }
 
-func (dec *Decoder) expectRuneType(ec rune, et jsonparse.RuneType, gt reflect.Type) {
+func (dec *Decoder) expectRuneType(ec rune, et jsonparse.RuneType, gt reflect.Type) *DecodeError {
 	ac, at := dec.readRune()
 	if ac != ec || at != et {
-		err := dec.newTypeError(at.JSONType(), gt, nil)
-		panic(decodeError(*err))
+		return dec.newTypeError(at.JSONType(), gt, nil)
 	}
+	return nil
 }
 
 type decRuneScanner struct {
@@ -990,7 +990,9 @@ func DecodeObject(r io.RuneScanner, decodeKey, decodeVal func(io.RuneScanner) er
 }
 
 func (dec *Decoder) decodeObject(gTyp reflect.Type, decodeKey, decodeVal func() *DecodeError) *DecodeError {
-	dec.expectRuneType('{', jsonparse.RuneTypeObjectBeg, gTyp)
+	if err := dec.expectRuneType('{', jsonparse.RuneTypeObjectBeg, gTyp); err != nil {
+		return err
+	}
 	_, t := dec.readRune()
 	switch t {
 	case jsonparse.RuneTypeObjectEnd:
@@ -1069,7 +1071,9 @@ func DecodeArray(r io.RuneScanner, decodeMember func(r io.RuneScanner) error) (e
 }
 
 func (dec *Decoder) decodeArray(gTyp reflect.Type, decodeMember func() *DecodeError) *DecodeError {
-	dec.expectRuneType('[', jsonparse.RuneTypeArrayBeg, gTyp)
+	if err := dec.expectRuneType('[', jsonparse.RuneTypeArrayBeg, gTyp); err != nil {
+		return err
+	}
 	_, t := dec.readRune()
 	switch t {
 	case jsonparse.RuneTypeArrayEnd:
@@ -1093,7 +1097,9 @@ func (dec *Decoder) decodeArray(gTyp reflect.Type, decodeMember func() *DecodeEr
 }
 
 func (dec *Decoder) decodeString(gTyp reflect.Type, out fastio.RuneWriter) *DecodeError {
-	dec.expectRuneType('"', jsonparse.RuneTypeStringBeg, gTyp)
+	if err := dec.expectRuneType('"', jsonparse.RuneTypeStringBeg, gTyp); err != nil {
+		return err
+	}
 	var uhex [4]byte
 	for {
 		c, t := dec.readRune()
-- 
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