Stdlib json handles embedded structs with json tags differently.

See 	https://play.golang.org/p/KXZbjG0JBle for an example

gen/decoder.go

@@ -343,7 +343,8 @@ func getStructFields(t reflect.Type) ([]reflect.StructField, error) {
 	var efields []reflect.StructField
 	for i := 0; i < t.NumField(); i++ {
 		f := t.Field(i)
-		if !f.Anonymous {
+		tags := parseFieldTags(f)
+		if !f.Anonymous || tags.name != "" {
 			continue
 		}
 
@@ -362,7 +363,8 @@ func getStructFields(t reflect.Type) ([]reflect.StructField, error) {
 	var fields []reflect.StructField
 	for i := 0; i < t.NumField(); i++ {
 		f := t.Field(i)
-		if f.Anonymous {
+		tags := parseFieldTags(f)
+		if f.Anonymous && tags.name == "" {
 			continue
 		}
 

tests/embedded_type.go

@@ -6,19 +6,25 @@ type EmbeddedType struct {
 	Inner struct {
 		EmbeddedInnerType
 	}
-	Field2 int
+	Field2             int
+	EmbeddedInnerType2 `json:"named"`
 }
 
 type EmbeddedInnerType struct {
 	Field1 int
 }
 
+type EmbeddedInnerType2 struct {
+	Field3 int
+}
+
 var embeddedTypeValue EmbeddedType
 
 func init() {
 	embeddedTypeValue.Field1 = 1
 	embeddedTypeValue.Field2 = 2
 	embeddedTypeValue.Inner.Field1 = 3
+	embeddedTypeValue.Field3 = 4
 }
 
-var embeddedTypeValueString = `{"Inner":{"Field1":3},"Field2":2,"Field1":1}`
+var embeddedTypeValueString = `{"Inner":{"Field1":3},"Field2":2,"named":{"Field3":4},"Field1":1}`