Propagate interface fields

src/tests/fixtures/extend_interface/addStringFieldToInterface.ts.expected

@@ -34,7 +34,7 @@ OUTPUT
 -----------------
 -- SDL --
 interface IPerson {
-  greeting: String
+  greeting: String @metadata(argCount: 1, name: "greeting", tsModulePath: "grats/src/tests/fixtures/extend_interface/addStringFieldToInterface.ts")
   hello: String @metadata
 }
 

src/tests/fixtures/extend_interface/addStringFieldToInterfaceImplementedByInterface.ts.expected

@@ -39,11 +39,11 @@ OUTPUT
 -----------------
 -- SDL --
 interface IPerson implements IThing {
-  greeting: String
+  greeting: String @metadata(argCount: 1, name: "greeting", tsModulePath: "grats/src/tests/fixtures/extend_interface/addStringFieldToInterfaceImplementedByInterface.ts")
 }
 
 interface IThing {
-  greeting: String
+  greeting: String @metadata(argCount: 1, name: "greeting", tsModulePath: "grats/src/tests/fixtures/extend_interface/addStringFieldToInterfaceImplementedByInterface.ts")
 }
 
 type Admin implements IPerson & IThing {

src/tests/fixtures/extend_interface/addStringFieldToInterfaceTwice.invalid.ts.expected

@@ -39,24 +39,6 @@ OUTPUT
 -----------------
 src/tests/fixtures/extend_interface/addStringFieldToInterfaceTwice.invalid.ts:9:17 - error: Field "IPerson.greeting" can only be defined once.
 
-9 export function greeting(person: IPerson): string {
-                  ~~~~~~~~
-
-  src/tests/fixtures/extend_interface/addStringFieldToInterfaceTwice.invalid.ts:13:5
-    13 /** @gqlField greeting */
-           ~~~~~~~~~~~~~~~~~~~
-    Related location
-src/tests/fixtures/extend_interface/addStringFieldToInterfaceTwice.invalid.ts:9:17 - error: Field "Admin.greeting" can only be defined once.
-
-9 export function greeting(person: IPerson): string {
-                  ~~~~~~~~
-
-  src/tests/fixtures/extend_interface/addStringFieldToInterfaceTwice.invalid.ts:13:5
-    13 /** @gqlField greeting */
-           ~~~~~~~~~~~~~~~~~~~
-    Related location
-src/tests/fixtures/extend_interface/addStringFieldToInterfaceTwice.invalid.ts:9:17 - error: Field "User.greeting" can only be defined once.
-
 9 export function greeting(person: IPerson): string {
                   ~~~~~~~~
 

src/tests/fixtures/extend_interface/redefineFiledThatExistsOnConcreteType.ts.expected

@@ -0,0 +1,81 @@
+-----------------
+INPUT
+----------------- 
+/** @gqlInterface */
+interface IPerson {
+  name: string;
+  /** @gqlField */
+  hello: string;
+}
+
+/** @gqlField */
+export function greeting(person: IPerson): string {
+  return `Hello ${person.name}!`;
+}
+
+/** @gqlType */
+class User implements IPerson {
+  __typename: "User";
+  name: string;
+  /** @gqlField */
+  hello: string;
+
+  /** @gqlField */
+  greeting(): string {
+    return `Hello ${this.name}!`;
+  }
+}
+
+-----------------
+OUTPUT
+-----------------
+-- SDL --
+interface IPerson {
+  greeting: String @metadata(argCount: 1, name: "greeting", tsModulePath: "grats/src/tests/fixtures/extend_interface/redefineFiledThatExistsOnConcreteType.ts")
+  hello: String @metadata
+}
+
+type User implements IPerson {
+  greeting: String @metadata(argCount: 0)
+  hello: String @metadata
+}
+-- TypeScript --
+import { GraphQLSchema, GraphQLInterfaceType, GraphQLString, GraphQLObjectType } from "graphql";
+export function getSchema(): GraphQLSchema {
+    const IPersonType: GraphQLInterfaceType = new GraphQLInterfaceType({
+        name: "IPerson",
+        fields() {
+            return {
+                greeting: {
+                    name: "greeting",
+                    type: GraphQLString
+                },
+                hello: {
+                    name: "hello",
+                    type: GraphQLString
+                }
+            };
+        }
+    });
+    const UserType: GraphQLObjectType = new GraphQLObjectType({
+        name: "User",
+        fields() {
+            return {
+                greeting: {
+                    name: "greeting",
+                    type: GraphQLString
+                },
+                hello: {
+                    name: "hello",
+                    type: GraphQLString
+                }
+            };
+        },
+        interfaces() {
+            return [IPersonType];
+        }
+    });
+    return new GraphQLSchema({
+        types: [IPersonType, UserType]
+    });
+}

src/tests/fixtures/extend_interface/redefineFiledThatExistsOnImplementingInterface.ts.expected

@@ -0,0 +1,79 @@
+-----------------
+INPUT
+----------------- 
+/** @gqlInterface */
+interface IPerson {
+  name: string;
+  /** @gqlField */
+  hello: string;
+}
+
+/** @gqlField */
+export function greeting(person: IPerson): string {
+  return `Hello ${person.name}!`;
+}
+
+/** @gqlInterface */
+interface User extends IPerson {
+  __typename: "User";
+  name: string;
+  /** @gqlField */
+  hello: string;
+
+  /** @gqlField */
+  greeting(): string;
+}
+
+-----------------
+OUTPUT
+-----------------
+-- SDL --
+interface IPerson {
+  greeting: String @metadata(argCount: 1, name: "greeting", tsModulePath: "grats/src/tests/fixtures/extend_interface/redefineFiledThatExistsOnImplementingInterface.ts")
+  hello: String @metadata
+}
+
+interface User implements IPerson {
+  greeting: String @metadata(argCount: 0)
+  hello: String @metadata
+}
+-- TypeScript --
+import { GraphQLSchema, GraphQLInterfaceType, GraphQLString } from "graphql";
+export function getSchema(): GraphQLSchema {
+    const IPersonType: GraphQLInterfaceType = new GraphQLInterfaceType({
+        name: "IPerson",
+        fields() {
+            return {
+                greeting: {
+                    name: "greeting",
+                    type: GraphQLString
+                },
+                hello: {
+                    name: "hello",
+                    type: GraphQLString
+                }
+            };
+        }
+    });
+    const UserType: GraphQLInterfaceType = new GraphQLInterfaceType({
+        name: "User",
+        fields() {
+            return {
+                greeting: {
+                    name: "greeting",
+                    type: GraphQLString
+                },
+                hello: {
+                    name: "hello",
+                    type: GraphQLString
+                }
+            };
+        },
+        interfaces() {
+            return [IPersonType];
+        }
+    });
+    return new GraphQLSchema({
+        types: [IPersonType, UserType]
+    });
+}

src/tests/fixtures/extend_type/interfaceFirstArgumentType.ts.expected

@@ -24,7 +24,7 @@ OUTPUT
 -- SDL --
 interface IFoo {
   bar: String @metadata
-  greeting: String
+  greeting: String @metadata(argCount: 1, name: "greeting", tsModulePath: "grats/src/tests/fixtures/extend_type/interfaceFirstArgumentType.ts")
 }
 
 type SomeType {

src/tests/fixtures/interfaces/concreteTypeInheritsFieldFromTransitiveInterface.ts

@@ -0,0 +1,16 @@
+/** @gqlInterface */
+interface Entity {
+  /** @gqlField */
+  name: string | null;
+}
+
+/** @gqlInterface */
+interface IThing extends Entity {
+  name: string | null;
+}
+
+/** @gqlType */
+export class Doohickey implements IThing, Entity {
+  __typename: "Doohickey";
+  name: string;
+}