Add support for object reflection field

context.go

@@ -127,3 +127,9 @@ func (c Context) Time(key string, t time.Time) Context {
 	c.l.context = appendTime(c.l.context, key, t)
 	return c
 }
+
+// Object adds the field key with obj marshaled using reflection.
+func (c Context) Object(key string, obj interface{}) Context {
+	c.l.context = appendObject(c.l.context, key, obj)
+	return c
+}

event.go

@@ -261,3 +261,12 @@ func (e *Event) Time(key string, t time.Time) *Event {
 	e.buf = appendTime(e.buf, key, t)
 	return e
 }
+
+// Object adds the field key with obj marshaled using reflection.
+func (e *Event) Object(key string, obj interface{}) *Event {
+	if !e.enabled {
+		return e
+	}
+	e.buf = appendObject(e.buf, key, obj)
+	return e
+}

log_example_test.go

@@ -114,6 +114,23 @@ func ExampleEvent_Dict() {
 	// Output: {"foo":"bar","dict":{"bar":"baz","n":1},"message":"hello world"}
 }
 
+func ExampleEvent_Object() {
+	log := zerolog.New(os.Stdout)
+
+	obj := struct {
+		Name string `json:"name"`
+	}{
+		Name: "john",
+	}
+
+	log.Log().
+		Str("foo", "bar").
+		Object("obj", obj).
+		Msg("hello world")
+
+	// Output: {"foo":"bar","obj":{"name":"john"},"message":"hello world"}
+}
+
 func ExampleContext_Dict() {
 	log := zerolog.New(os.Stdout).With().
 		Str("foo", "bar").
@@ -126,3 +143,20 @@ func ExampleContext_Dict() {
 
 	// Output: {"foo":"bar","dict":{"bar":"baz","n":1},"message":"hello world"}
 }
+
+func ExampleContext_Object() {
+	obj := struct {
+		Name string `json:"name"`
+	}{
+		Name: "john",
+	}
+
+	log := zerolog.New(os.Stdout).With().
+		Str("foo", "bar").
+		Object("obj", obj).
+		Logger()
+
+	log.Log().Msg("hello world")
+
+	// Output: {"foo":"bar","obj":{"name":"john"},"message":"hello world"}
+}