From 3eacf18ea8d327b9669800f0ceb1754172629923 Mon Sep 17 00:00:00 2001
From: Masaaki Goshima <goccy54@gmail.com>
Date: Mon, 8 Jun 2020 23:06:16 +0900
Subject: [PATCH] Fix panic at decoding of inlining pointer type with
 DisallowUnknownField option

---
 decode.go      | 11 +++++++----
 decode_test.go |  4 ++--
 2 files changed, 9 insertions(+), 6 deletions(-)

diff --git a/decode.go b/decode.go
index b0990c8e..973d2e96 100644
--- a/decode.go
+++ b/decode.go
@@ -362,14 +362,17 @@ func errDuplicateKey(msg string, tk *token.Token) *duplicateKeyError {
 }
 
 func (d *Decoder) deleteStructKeys(structValue reflect.Value, unknownFields map[string]ast.Node) error {
-	strType := structValue.Type()
-	structFieldMap, err := structFieldMap(strType)
+	structType := structValue.Type()
+	if structType.Kind() == reflect.Ptr {
+		structType = structType.Elem()
+	}
+	structFieldMap, err := structFieldMap(structType)
 	if err != nil {
 		return errors.Wrapf(err, "failed to create struct field map")
 	}
 
-	for j := 0; j < strType.NumField(); j++ {
-		field := structValue.Type().Field(j)
+	for j := 0; j < structType.NumField(); j++ {
+		field := structType.Field(j)
 		if isIgnoredStructField(field) {
 			continue
 		}
diff --git a/decode_test.go b/decode_test.go
index 166f56c7..e5b76f6c 100644
--- a/decode_test.go
+++ b/decode_test.go
@@ -1426,8 +1426,8 @@ c:
 	})
 	t.Run("inline", func(t *testing.T) {
 		var v struct {
-			Child `yaml:",inline"`
-			A     string `yaml:"a"`
+			*Child `yaml:",inline"`
+			A      string `yaml:"a"`
 		}
 		yml := `---
 a: a