Separate interfaces from implementations for exported classes

= allows for cross-realm/worker GraphQL = allows for custom implementations of the GraphQL entity implementations, e.g. the `execute` function from GraphQL can be used for any object that implements the `GraphQLSchema` interface, even if does not conform to the default `GraphQLSchemaImpl` class. = currently provides symbols for predicates for the following interfaces: `GraphQLScalarType`, `GraphQLObjectType`, `GraphQLInterfaceType`, `GraphQLUnionType`, `GraphQLEnumType`, `GraphQLInputObjectType`, `GraphQLList`, `GraphQLNonNull`, `GraphQLDirective`, `GraphQLSchema`, and `Source`, i.e. all classes that made internal use of the `instanceOf` method. = the `instanceOf` method now uses symbols instead of `instanceof`. = the exported BREAK object is now passed into the visitor function to allow for cross-compatibility between `graphql` library instances.
graphql · Jun 2, 2022 · e60c6f3 · e60c6f3
1 parent 540bb38
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diff --git a/README.md b/README.md
@@ -48,8 +48,8 @@ import {
   GraphQLString,
 } from 'graphql';
 
-var schema = new GraphQLSchema({
-  query: new GraphQLObjectType({
+var schema = new GraphQLSchemaImpl({
+  query: new GraphQLObjectTypeImpl({
     name: 'RootQueryType',
     fields: {
       hello: {

diff --git a/docs-old/APIReference-GraphQL.md b/docs-old/APIReference-GraphQL.md
@@ -32,8 +32,8 @@ _Schema_
 
 <ul class="apiIndex">
   <li>
-    <a href="../type/#graphqlschema">
-      <pre>class GraphQLSchema</pre>
+    <a href="../type/#graphqlschemaimpl">
+      <pre>class GraphQLSchemaImpl</pre>
       A representation of the capabilities of a GraphQL Server.
     </a>
   </li>
@@ -43,50 +43,50 @@ _Type Definitions_
 
 <ul class="apiIndex">
   <li>
-    <a href="../type/#graphqlscalartype">
-      <pre>class GraphQLScalarType</pre>
+    <a href="../type/#graphqlscalartypeimpl">
+      <pre>class GraphQLScalarTypeImpl</pre>
       A scalar type within GraphQL.
     </a>
   </li>
   <li>
-    <a href="../type/#graphqlobjecttype">
-      <pre>class GraphQLObjectType</pre>
+    <a href="../type/#graphqlobjecttypeimpl">
+      <pre>class GraphQLObjectTypeImpl</pre>
       An object type within GraphQL that contains fields.
     </a>
   </li>
   <li>
-    <a href="../type/#graphqlinterfacetype">
-      <pre>class GraphQLInterfaceType</pre>
+    <a href="../type/#graphqlinterfacetypeimpl">
+      <pre>class GraphQLInterfaceTypeImpl</pre>
       An interface type within GraphQL that defines fields implementations will contain.
     </a>
   </li>
   <li>
-    <a href="../type/#graphqluniontype">
-      <pre>class GraphQLUnionType</pre>
+    <a href="../type/#graphqluniontypeimpl">
+      <pre>class GraphQLUnionTypeImpl</pre>
       A union type within GraphQL that defines a list of implementations.
     </a>
   </li>
   <li>
-    <a href="../type/#graphqlenumtype">
-      <pre>class GraphQLEnumType</pre>
+    <a href="../type/#graphqlenumtypeimpl">
+      <pre>class GraphQLEnumTypeImpl</pre>
       An enum type within GraphQL that defines a list of valid values.
     </a>
   </li>
   <li>
-    <a href="../type/#graphqlinputobjecttype">
-      <pre>class GraphQLInputObjectType</pre>
+    <a href="../type/#graphqlinputobjecttypeimpl">
+      <pre>class GraphQLInputObjectTypeImpl</pre>
       An input object type within GraphQL that represents structured inputs.
     </a>
   </li>
   <li>
-    <a href="../type/#graphqllist">
-      <pre>class GraphQLList</pre>
+    <a href="../type/#graphqllistimpl">
+      <pre>class GraphQLListImpl</pre>
       A type wrapper around other types that represents a list of those types.
     </a>
   </li>
   <li>
-    <a href="../type/#graphqlnonnull">
-      <pre>class GraphQLNonNull</pre>
+    <a href="../type/#graphqlnonnullimpl">
+      <pre>class GraphQLNonNullImpl</pre>
       A type wrapper around other types that represents a non-null version of those types.
     </a>
   </li>

diff --git a/docs-old/APIReference-Language.md b/docs-old/APIReference-Language.md
@@ -3,7 +3,7 @@ title: graphql/language
 layout: ../_core/GraphQLJSLayout
 category: API Reference
 permalink: /graphql-js/language/
-sublinks: BREAK,getLocation,Kind,lex,parse,parseValue,printSource,visit
+sublinks: getLocation,Kind,lex,parse,parseValue,printSource,visit
 next: /graphql-js/type/
 ---
 
@@ -76,12 +76,6 @@ _Visitor_
       A general-purpose visitor to traverse a parsed GraphQL AST
     </a>
   </li>
-  <li>
-    <a href="#break">
-      <pre>var BREAK</pre>
-      A token to allow breaking out of the visitor.
-    </a>
-  </li>
 </ul>
 
 _Printer_
@@ -215,15 +209,15 @@ visit function.
 
 ```js
 var editedAST = visit(ast, {
-  enter(node, key, parent, path, ancestors) {
+  enter(node, key, parent, path, ancestors, BREAK) {
     // @return
     //   undefined: no action
     //   false: skip visiting this node
     //   visitor.BREAK: stop visiting altogether
     //   null: delete this node
     //   any value: replace this node with the returned value
   },
-  leave(node, key, parent, path, ancestors) {
+  leave(node, key, parent, path, ancestors, BREAK) {
     // @return
     //   undefined: no action
     //   false: no action
@@ -295,10 +289,6 @@ visit(ast, {
 });
 ```
 
-### BREAK
-
-The sentinel `BREAK` value described in the documentation of `visitor`.
-
 ## Printer
 
 ### print

diff --git a/docs-old/APIReference-TypeSystem.md b/docs-old/APIReference-TypeSystem.md
@@ -3,15 +3,15 @@ title: graphql/type
 layout: ../_core/GraphQLJSLayout
 category: API Reference
 permalink: /graphql-js/type/
-sublinks: getNamedType,getNullableType,GraphQLBoolean,GraphQLEnumType,GraphQLFloat,GraphQLID,GraphQLInputObjectType,GraphQLInt,GraphQLInterfaceType,GraphQLList,GraphQLNonNull,GraphQLObjectType,GraphQLScalarType,GraphQLSchema,GraphQLString,GraphQLUnionType,isAbstractType,isCompositeType,isInputType,isLeafType,isOutputType
+sublinks: getNamedType,getNullableType,GraphQLBoolean,GraphQLEnumTypeImpl,GraphQLFloat,GraphQLID,GraphQLInputObjectTypeImpl,GraphQLInt,GraphQLInterfaceTypeImpl,GraphQLListImpl,GraphQLNonNullImpl,GraphQLObjectTypeImpl,GraphQLScalarTypeImpl,GraphQLSchemaImpl,GraphQLString,GraphQLUnionTypeImpl,isAbstractType,isCompositeType,isInputType,isLeafType,isOutputType
 next: /graphql-js/utilities/
 ---
 
 The `graphql/type` module is responsible for defining GraphQL types and schema. You can import either from the `graphql/type` module, or from the root `graphql` module. For example:
 
 ```js
-import { GraphQLSchema } from 'graphql'; // ES6
-var { GraphQLSchema } = require('graphql'); // CommonJS
+import { GraphQLSchemaImpl } from 'graphql'; // ES6
+var { GraphQLSchemaImpl } = require('graphql'); // CommonJS
 ```
 
 ## Overview
@@ -20,8 +20,8 @@ _Schema_
 
 <ul class="apiIndex">
   <li>
-    <a href="#graphqlschema">
-      <pre>class GraphQLSchema</pre>
+    <a href="#graphqlschemaimpl">
+      <pre>class GraphQLSchemaImpl</pre>
       A representation of the capabilities of a GraphQL Server.
     </a>
   </li>
@@ -31,50 +31,50 @@ _Definitions_
 
 <ul class="apiIndex">
   <li>
-    <a href="#graphqlscalartype">
-      <pre>class GraphQLScalarType</pre>
+    <a href="#graphqlscalartypeimpl">
+      <pre>class GraphQLScalarTypeImpl</pre>
       A scalar type within GraphQL.
     </a>
   </li>
   <li>
-    <a href="#graphqlobjecttype">
-      <pre>class GraphQLObjectType</pre>
+    <a href="#graphqlobjecttypeimpl">
+      <pre>class GraphQLObjectTypeImpl</pre>
       An object type within GraphQL that contains fields.
     </a>
   </li>
   <li>
-    <a href="#graphqlinterfacetype">
-      <pre>class GraphQLInterfaceType</pre>
+    <a href="#graphqlinterfacetypeimpl">
+      <pre>class GraphQLInterfaceTypeImpl</pre>
       An interface type within GraphQL that defines fields implementations will contain.
     </a>
   </li>
   <li>
-    <a href="#graphqluniontype">
-      <pre>class GraphQLUnionType</pre>
+    <a href="#graphqluniontypeimpl">
+      <pre>class GraphQLUnionTypeImpl</pre>
       A union type within GraphQL that defines a list of implementations.
     </a>
   </li>
   <li>
-    <a href="#graphqlenumtype">
-      <pre>class GraphQLEnumType</pre>
+    <a href="#graphqlenumtypeimpl">
+      <pre>class GraphQLEnumTypeImpl</pre>
       An enum type within GraphQL that defines a list of valid values.
     </a>
   </li>
   <li>
-    <a href="#graphqlinputobjecttype">
-      <pre>class GraphQLInputObjectType</pre>
+    <a href="#graphqlinputobjecttypeimpl">
+      <pre>class GraphQLInputObjectTypeImpl</pre>
       An input object type within GraphQL that represents structured inputs.
     </a>
   </li>
   <li>
-    <a href="#graphqllist">
-      <pre>class GraphQLList</pre>
+    <a href="#graphqllistimpl">
+      <pre>class GraphQLListImpl</pre>
       A type wrapper around other types that represents a list of those types.
     </a>
   </li>
   <li>
-    <a href="#graphqlnonnull">
-      <pre>class GraphQLNonNull</pre>
+    <a href="#graphqlnonnullimpl">
+      <pre>class GraphQLNonNullImpl</pre>
       A type wrapper around other types that represents a non-null version of those types.
     </a>
   </li>
@@ -188,7 +188,7 @@ validator and executor.
 #### Example
 
 ```js
-var MyAppSchema = new GraphQLSchema({
+var MyAppSchema = new GraphQLSchemaImpl({
   query: MyAppQueryRootType
   mutation: MyAppMutationRootType
 });
@@ -220,7 +220,7 @@ functions used to ensure validity.
 #### Example
 
 ```js
-var OddType = new GraphQLScalarType({
+var OddType = new GraphQLScalarTypeImpl({
   name: 'Odd',
   serialize: oddValue,
   parseValue: oddValue,
@@ -315,7 +315,7 @@ that value can always be referenced with `this`.
 #### Examples
 
 ```js
-var AddressType = new GraphQLObjectType({
+var AddressType = new GraphQLObjectTypeImpl({
   name: 'Address',
   fields: {
     street: { type: GraphQLString },
@@ -329,7 +329,7 @@ var AddressType = new GraphQLObjectType({
   },
 });
 
-var PersonType = new GraphQLObjectType({
+var PersonType = new GraphQLObjectTypeImpl({
   name: 'Person',
   fields: () => ({
     name: { type: GraphQLString },
@@ -361,7 +361,7 @@ when the field is resolved.
 #### Example
 
 ```js
-var EntityType = new GraphQLInterfaceType({
+var EntityType = new GraphQLInterfaceTypeImpl({
   name: 'Entity',
   fields: {
     name: { type: GraphQLString },
@@ -393,7 +393,7 @@ to determine which type is actually used when the field is resolved.
 ### Example
 
 ```js
-var PetType = new GraphQLUnionType({
+var PetType = new GraphQLUnionTypeImpl({
   name: 'Pet',
   types: [DogType, CatType],
   resolveType(value) {
@@ -448,7 +448,7 @@ will be used as its internal value.
 #### Example
 
 ```js
-var RGBType = new GraphQLEnumType({
+var RGBType = new GraphQLEnumTypeImpl({
   name: 'RGB',
   values: {
     RED: { value: 0 },
@@ -503,11 +503,11 @@ Using `NonNull` will ensure that a value must be provided by the query
 #### Example
 
 ```js
-var GeoPoint = new GraphQLInputObjectType({
+var GeoPoint = new GraphQLInputObjectTypeImpl({
   name: 'GeoPoint',
   fields: {
-    lat: { type: new GraphQLNonNull(GraphQLFloat) },
-    lon: { type: new GraphQLNonNull(GraphQLFloat) },
+    lat: { type: new GraphQLNonNullImpl(GraphQLFloat) },
+    lon: { type: new GraphQLNonNullImpl(GraphQLFloat) },
     alt: { type: GraphQLFloat, defaultValue: 0 },
   },
 });
@@ -528,11 +528,11 @@ an object type.
 #### Example
 
 ```js
-var PersonType = new GraphQLObjectType({
+var PersonType = new GraphQLObjectTypeImpl({
   name: 'Person',
   fields: () => ({
-    parents: { type: new GraphQLList(Person) },
-    children: { type: new GraphQLList(Person) },
+    parents: { type: new GraphQLListImpl(Person) },
+    children: { type: new GraphQLListImpl(Person) },
   }),
 });
 ```
@@ -554,10 +554,10 @@ usually the id field of a database row will never be null.
 #### Example
 
 ```js
-var RowType = new GraphQLObjectType({
+var RowType = new GraphQLObjectTypeImpl({
   name: 'Row',
   fields: () => ({
-    id: { type: new GraphQLNonNull(String) },
+    id: { type: new GraphQLNonNullImpl(String) },
   }),
 });
 ```

diff --git a/integrationTests/ts/basic-test.ts b/integrationTests/ts/basic-test.ts
@@ -1,9 +1,14 @@
 import type { ExecutionResult } from 'graphql/execution';
 
 import { graphqlSync } from 'graphql';
-import { GraphQLString, GraphQLSchema, GraphQLObjectType } from 'graphql/type';
+import type { GraphQLSchema, GraphQLObjectType } from 'graphql/type';
+import {
+  GraphQLString,
+  GraphQLSchemaImpl,
+  GraphQLObjectTypeImpl,
+} from 'graphql/type';
 
-const queryType: GraphQLObjectType = new GraphQLObjectType({
+const queryType: GraphQLObjectType = new GraphQLObjectTypeImpl({
   name: 'Query',
   fields: () => ({
     sayHi: {
@@ -21,7 +26,7 @@ const queryType: GraphQLObjectType = new GraphQLObjectType({
   }),
 });
 
-const schema: GraphQLSchema = new GraphQLSchema({ query: queryType });
+const schema: GraphQLSchema = new GraphQLSchemaImpl({ query: queryType });
 
 const result: ExecutionResult = graphqlSync({
   schema,

diff --git a/integrationTests/ts/extensions-test.ts b/integrationTests/ts/extensions-test.ts
@@ -1,5 +1,6 @@
 import { GraphQLError } from 'graphql/error';
-import { GraphQLString, GraphQLObjectType } from 'graphql/type';
+import { GraphQLString, GraphQLObjectTypeImpl } from 'graphql/type';
+import type { GraphQLObjectType } from 'graphql/type';
 
 interface SomeExtension {
   meaningOfLife: 42;
@@ -19,7 +20,7 @@ declare module 'graphql' {
   }
 }
 
-const queryType: GraphQLObjectType = new GraphQLObjectType({
+const queryType: GraphQLObjectType = new GraphQLObjectTypeImpl({
   name: 'Query',
   fields: () => ({
     sayHi: {