From 4e7b01fe32a921ce50afbf11d88b26d3e5162024 Mon Sep 17 00:00:00 2001
From: DerekStrickland <dstrickland@hashicorp.com>
Date: Tue, 27 Jul 2021 10:56:35 -0400
Subject: [PATCH 1/2] Detect if a field is anonymous and handle the indirection

---
 openapi3gen/openapi3gen.go | 18 +++++++++++++++---
 1 file changed, 15 insertions(+), 3 deletions(-)

diff --git a/openapi3gen/openapi3gen.go b/openapi3gen/openapi3gen.go
index 960698324..84d1f998d 100644
--- a/openapi3gen/openapi3gen.go
+++ b/openapi3gen/openapi3gen.go
@@ -217,9 +217,21 @@ func (g *Generator) generateWithoutSaving(parents []*jsoninfo.TypeInfo, t reflec
 				// If asked, try to use yaml tag
 				name, fType := fieldInfo.JSONName, fieldInfo.Type
 				if !fieldInfo.HasJSONTag && g.opts.useAllExportedFields {
-					ff := t.Field(fieldInfo.Index[len(fieldInfo.Index)-1])
-					if tag, ok := ff.Tag.Lookup("yaml"); ok && tag != "-" {
-						name, fType = tag, ff.Type
+					// Handle anonymous fields/embedded structs
+					if t.Field(fieldInfo.Index[0]).Anonymous {
+						ref, err := g.generateSchemaRefFor(parents, fType)
+						if err != nil {
+							return nil, err
+						}
+						if ref != nil {
+							g.SchemaRefs[ref]++
+							schema.WithPropertyRef(name, ref)
+						}
+					} else {
+						ff := t.Field(fieldInfo.Index[len(fieldInfo.Index)-1])
+						if tag, ok := ff.Tag.Lookup("yaml"); ok && tag != "-" {
+							name, fType = tag, ff.Type
+						}
 					}
 				}
 

From 5e49b036ea84401add56c9daca5a14c1e7ee7f65 Mon Sep 17 00:00:00 2001
From: DerekStrickland <dstrickland@hashicorp.com>
Date: Wed, 28 Jul 2021 10:25:23 -0400
Subject: [PATCH 2/2] Added unit test for embedded structs

---
 openapi3gen/openapi3gen_test.go | 31 +++++++++++++++++++++++++++++++
 1 file changed, 31 insertions(+)

diff --git a/openapi3gen/openapi3gen_test.go b/openapi3gen/openapi3gen_test.go
index 777bb9dad..f8e2430e2 100644
--- a/openapi3gen/openapi3gen_test.go
+++ b/openapi3gen/openapi3gen_test.go
@@ -1,6 +1,7 @@
 package openapi3gen
 
 import (
+	"reflect"
 	"testing"
 
 	"github.com/getkin/kin-openapi/openapi3"
@@ -53,3 +54,33 @@ func TestExportUint(t *testing.T) {
 			"uint": {Value: &openapi3.Schema{Type: "integer", Min: &zeroInt}},
 		}}}, schemaRef)
 }
+
+func TestEmbeddedStructs(t *testing.T) {
+	type EmbeddedStruct struct {
+		ID string
+	}
+
+	type ContainerStruct struct {
+		Name string
+		EmbeddedStruct
+	}
+
+	instance := &ContainerStruct{
+		Name: "Container",
+		EmbeddedStruct: EmbeddedStruct{
+			ID: "Embedded",
+		},
+	}
+
+	generator := NewGenerator(UseAllExportedFields())
+
+	schemaRef, err := generator.GenerateSchemaRef(reflect.TypeOf(instance))
+	require.NoError(t, err)
+
+	var ok bool
+	_, ok = schemaRef.Value.Properties["Name"]
+	require.Equal(t, true, ok)
+
+	_, ok = schemaRef.Value.Properties["ID"]
+	require.Equal(t, true, ok)
+}