Merge branch 'json-prettyprint-example'

Author: warpfork

example_test.go

@@ -25,6 +25,28 @@ func ExampleNewMarshaller_json() {
 	// <nil>
 }
 
+func ExampleNewMarshaller_json_prettyprint() {
+	var buf bytes.Buffer
+	encoder := refmt.NewMarshaller(json.EncodeOptions{
+		Line:   []byte{'\n'},
+		Indent: []byte{'\t'},
+	}, &buf)
+	err := encoder.Marshal(map[string]interface{}{
+		"x": "a",
+		"y": 1,
+	})
+	fmt.Println(buf.String())
+	fmt.Printf("%v\n", err)
+
+	// Output:
+	// {
+	// 	"x": "a",
+	// 	"y": 1
+	// }
+	//
+	// <nil>
+}
+
 func ExampleNewMarshallerAtlased_autogeneratedAtlas() {
 	type MyType struct {
 		X string

marshalHelpers.go

@@ -39,9 +39,9 @@ type Marshaller interface {
 }
 
 func NewMarshaller(opts EncodeOptions, wr io.Writer) Marshaller {
-	switch opts.(type) {
+	switch o2 := opts.(type) {
 	case json.EncodeOptions:
-		return json.NewMarshaller(wr)
+		return json.NewMarshallerAtlased(wr, o2, atlas.MustBuild())
 	case cbor.EncodeOptions:
 		return cbor.NewMarshaller(wr)
 	default: