BREAKING: Remove support for deprecated directive locations

Continuation of graphql#1385

Author: IvanGoncharov

src/utilities/__tests__/buildClientSchema-test.js

@@ -25,8 +25,8 @@ import {
   GraphQLString,
   GraphQLBoolean,
   GraphQLID,
+  GraphQLDirective,
 } from '../../';
-import { GraphQLDirective } from '../../type/directives';
 
 // Test property:
 // Given a server's schema, a client may query that server with introspection,
@@ -587,78 +587,6 @@ describe('Type System: build schema from introspection', () => {
     testSchema(schema);
   });
 
-  it('builds a schema with legacy directives', () => {
-    const oldIntrospection = {
-      __schema: {
-        // Minimum required schema.
-        queryType: {
-          name: 'Simple',
-        },
-        types: [
-          {
-            name: 'Simple',
-            kind: 'OBJECT',
-            fields: [
-              {
-                name: 'simple',
-                args: [],
-                type: { name: 'Simple' },
-              },
-            ],
-            interfaces: [],
-          },
-        ],
-        // Test old directive introspection results.
-        directives: [
-          { name: 'Old1', args: [], onField: true },
-          { name: 'Old2', args: [], onFragment: true },
-          { name: 'Old3', args: [], onOperation: true },
-          { name: 'Old4', args: [], onField: true, onFragment: true },
-        ],
-      },
-    };
-
-    const clientSchema = buildClientSchema(oldIntrospection);
-    const secondIntrospection = introspectionFromSchema(clientSchema);
-
-    // New introspection produces correct new format.
-    expect(secondIntrospection).to.deep.nested.property('__schema.directives', [
-      {
-        name: 'Old1',
-        description: null,
-        args: [],
-        locations: ['FIELD'],
-      },
-      {
-        name: 'Old2',
-        description: null,
-        args: [],
-        locations: [
-          'FRAGMENT_DEFINITION',
-          'FRAGMENT_SPREAD',
-          'INLINE_FRAGMENT',
-        ],
-      },
-      {
-        name: 'Old3',
-        description: null,
-        args: [],
-        locations: ['QUERY', 'MUTATION', 'SUBSCRIPTION'],
-      },
-      {
-        name: 'Old4',
-        description: null,
-        args: [],
-        locations: [
-          'FIELD',
-          'FRAGMENT_DEFINITION',
-          'FRAGMENT_SPREAD',
-          'INLINE_FRAGMENT',
-        ],
-      },
-    ]);
-  });
-
   it('builds a schema with legacy names', () => {
     const introspection = {
       __schema: {

src/utilities/buildClientSchema.js

@@ -14,8 +14,6 @@ import { valueFromAST } from './valueFromAST';
 import { parseValue } from '../language/parser';
 import { GraphQLSchema } from '../type/schema';
 
-import { DirectiveLocation } from '../language/directiveLocation';
-
 import {
   isInputType,
   isOutputType,
@@ -340,27 +338,6 @@ export function buildClientSchema(
   }
 
   function buildDirective(directiveIntrospection) {
-    // Support deprecated `on****` fields for building `locations`, as this
-    // is used by GraphiQL which may need to support outdated servers.
-    const locations = directiveIntrospection.locations
-      ? directiveIntrospection.locations.slice()
-      : [].concat(
-          !directiveIntrospection.onField ? [] : [DirectiveLocation.FIELD],
-          !directiveIntrospection.onOperation
-            ? []
-            : [
-                DirectiveLocation.QUERY,
-                DirectiveLocation.MUTATION,
-                DirectiveLocation.SUBSCRIPTION,
-              ],
-          !directiveIntrospection.onFragment
-            ? []
-            : [
-                DirectiveLocation.FRAGMENT_DEFINITION,
-                DirectiveLocation.FRAGMENT_SPREAD,
-                DirectiveLocation.INLINE_FRAGMENT,
-              ],
-        );
     if (!directiveIntrospection.args) {
       throw new Error(
         'Introspection result missing directive args: ' +
@@ -370,7 +347,7 @@ export function buildClientSchema(
     return new GraphQLDirective({
       name: directiveIntrospection.name,
       description: directiveIntrospection.description,
-      locations,
+      locations: directiveIntrospection.locations.slice(),
       args: buildInputValueDefMap(directiveIntrospection.args),
     });
   }