use "embed" in generated code

_examples/embedding/parent.graphqls

@@ -0,0 +1,3 @@
+extend type Query {
+    parentdir: String!
+}

_examples/embedding/subdir/cfgdir/generate_in_gendir.yml

@@ -0,0 +1,12 @@
+schema:
+  - schemadir/*.graphqls
+  - ../*.graphqls
+  - '*.graphqls'
+exec:
+  dir: gendir
+  filename: gendir/generated.go
+  package: gendir
+
+model:
+  filename: gendir/model.go
+  package: gendir

_examples/embedding/subdir/cfgdir/generate_in_subdir.yml

@@ -0,0 +1,12 @@
+schema:
+  - schemadir/*.graphqls
+  - ../*.graphqls
+  - '*.graphqls'
+exec:
+  layout: follow-schema
+  dir: .
+  package: subdir
+
+model:
+  filename: model.go
+  package: subdir

_examples/embedding/subdir/embedding_test.go

@@ -0,0 +1,48 @@
+package subdir
+
+import (
+	"testing"
+
+	"github.com/99designs/gqlgen/_examples/embedding/subdir/gendir"
+	"github.com/99designs/gqlgen/client"
+	"github.com/99designs/gqlgen/graphql/handler"
+	"github.com/stretchr/testify/require"
+)
+
+func TestEmbeddingWorks(t *testing.T) {
+	c := client.New(handler.NewDefaultServer(NewExecutableSchema(Config{Resolvers: &Resolver{}})))
+	var resp struct {
+		InSchemadir string
+		Parentdir   string
+		Subdir      string
+	}
+	c.MustPost(`{
+				inSchemadir
+				parentdir
+				subdir
+			}
+		`, &resp)
+
+	require.Equal(t, "example", resp.InSchemadir)
+	require.Equal(t, "example", resp.Parentdir)
+	require.Equal(t, "example", resp.Subdir)
+}
+
+func TestEmbeddingWorksInGendir(t *testing.T) {
+	c := client.New(handler.NewDefaultServer(gendir.NewExecutableSchema(gendir.Config{Resolvers: &GendirResolver{}})))
+	var resp struct {
+		InSchemadir string
+		Parentdir   string
+		Subdir      string
+	}
+	c.MustPost(`{
+				inSchemadir
+				parentdir
+				subdir
+			}
+		`, &resp)
+
+	require.Equal(t, "example", resp.InSchemadir)
+	require.Equal(t, "example", resp.Parentdir)
+	require.Equal(t, "example", resp.Subdir)
+}