From 6f2399aa0eec93f27bb784a7436e4da08cd92f30 Mon Sep 17 00:00:00 2001
From: Richard Musiol <mail@richard-musiol.de>
Date: Wed, 19 Oct 2016 14:28:30 +0200
Subject: [PATCH] introspection: type kind

---
 graphql_test.go                | 16 +++++++++++++---
 internal/exec/introspection.go | 21 ++++++++++++++++++++-
 2 files changed, 33 insertions(+), 4 deletions(-)

diff --git a/graphql_test.go b/graphql_test.go
index f7049d9d700..162dd47981c 100644
--- a/graphql_test.go
+++ b/graphql_test.go
@@ -592,15 +592,25 @@ var tests = []struct {
 		resolver: &starwars.Resolver{},
 		query: `
 			{
-				__type(name: "Droid") {
+				a: __type(name: "Droid") {
 					name
+					kind
+				},
+				b: __type(name: "Character") {
+					name
+					kind
 				}
 			}
 		`,
 		result: `
 			{
-				"__type": {
-					"name": "Droid"
+				"a": {
+					"name": "Droid",
+					"kind": "OBJECT"
+				},
+				"b": {
+					"name": "Character",
+					"kind": "INTERFACE"
 				}
 			}
 		`,
diff --git a/internal/exec/introspection.go b/internal/exec/introspection.go
index 8b02a8f8d62..dd1e86f4b11 100644
--- a/internal/exec/introspection.go
+++ b/internal/exec/introspection.go
@@ -167,7 +167,26 @@ type typeResolver struct {
 }
 
 func (r *typeResolver) Kind() string {
-	panic("TODO")
+	if r.scalar != "" {
+		return "SCALAR"
+	}
+	switch r.typ.(type) {
+	case *schema.Object:
+		return "OBJECT"
+	case *schema.Interface:
+		return "INTERFACE"
+	case *schema.Union:
+		return "UNION"
+	case *schema.Enum:
+		return "ENUM"
+	case *schema.Input:
+		return "INPUT_OBJECT"
+	case *schema.List:
+		return "LIST"
+	// TODO NON_NULL
+	default:
+		panic("unreachable")
+	}
 }
 
 func (r *typeResolver) Name() string {