「AppArch」Interpreter 👉 New Platform (#39329)

* feat: 🎸 set-up NP data plugin

* refactor: 💡 move interpreter functions registry to NP

* refactor: 💡 move interpreter renderer registry to NP plugin

* refactor: 💡 move interpreter typesRegistry to NP

* refactor: 💡 move interpreter types to NP

* chore: 🤖 import typeRegistry from NP and change TS type folder

* refactor: 💡 move interpreter expression types to NP

* refactor: 💡 move rest of interpreter common folder to NP plugin

* fix: 🐛 fix TypeScript errors

* test: 💍 improve typings and test mocks

* refactor: 💡 make Interpreter internal registry impl private

* test: 💍 inline NP backdoor mock creation in test suites

* chore: 🤖 change @kbn/interpreter import paths to try fix errors

* fix: 🐛 improve core Plugin interfaces

* feat: 🎸 add stop() lifecycle to NP data plugins

* refactor: 💡 move interpreter into expressions service data NP

* refactor: 💡 inline Registry @kbn/interpreter class

* refactor: 💡 remove dependency on @kbn/interpreter in data pub

* refactor: 💡 move interpreter common dir into expressions dir

* fix: 🐛 use TS types in kibana_context

* feat: 🎸 add types suggested in PR review

* feat: 🎸 add semantic interpreter registration functions

* refactor: 💡 use require for all @kbn/interpreter imports

* test: 💍 add Karma test mocks, thx @spalger 🙏

* docs: ✏️ update Core docs

* test: 💍 add Sinon stubs for registries

* chore: 🤖 change import syntax in hopes CI will work

* chore: 🤖 set App Architecture as owners of data plugin

* docs: ✏️ add README

* chore: 🤖 change import in hopes to fix optimizer

* fix: 🐛 make stop() plugin life-cycle optional

* docs: ✏️ update Core API docs

* test: 💍 remove unnecessary Jest mock

* chore: 🤖 don't import from deeply inside a plugin

* refactor: 💡 try different interpreter import

* fix: 🐛 fix Karma mocking

* fix: 🐛 fix TypeScript type imports

* test: 💍 fix broken test

.github/CODEOWNERS

@@ -3,6 +3,7 @@
 # For more info, see https://help.github.com/articles/about-codeowners/
 
 # App Architecture
+/src/plugins/data/ @elastic/kibana-app-arch
 /src/plugins/kibana_utils/ @elastic/kibana-app-arch
 
 # APM

docs/development/core/public/kibana-plugin-public.plugin.md

@@ -9,14 +9,14 @@ The interface that should be returned by a `PluginInitializer`<!-- -->.
 <b>Signature:</b>
 
 ```typescript
-export interface Plugin<TSetup, TStart, TPluginsSetup extends Record<string, unknown> = {}, TPluginsStart extends Record<string, unknown> = {}> 
+export interface Plugin<TSetup = void, TStart = void, TPluginsSetup extends {} = {}, TPluginsStart extends {} = {}> 
 ```
 
-## Properties
+## Methods
 
-|  Property | Type | Description |
-|  --- | --- | --- |
-|  [setup](./kibana-plugin-public.plugin.setup.md) | <code>(core: CoreSetup, plugins: TPluginsSetup) =&gt; TSetup &#124; Promise&lt;TSetup&gt;</code> |  |
-|  [start](./kibana-plugin-public.plugin.start.md) | <code>(core: CoreStart, plugins: TPluginsStart) =&gt; TStart &#124; Promise&lt;TStart&gt;</code> |  |
-|  [stop](./kibana-plugin-public.plugin.stop.md) | <code>() =&gt; void</code> |  |
+|  Method | Description |
+|  --- | --- |
+|  [setup(core, plugins)](./kibana-plugin-public.plugin.setup.md) |  |
+|  [start(core, plugins)](./kibana-plugin-public.plugin.start.md) |  |
+|  [stop()](./kibana-plugin-public.plugin.stop.md) |  |
 

docs/development/core/public/kibana-plugin-public.plugin.setup.md

@@ -2,10 +2,22 @@
 
 [Home](./index.md) > [kibana-plugin-public](./kibana-plugin-public.md) > [Plugin](./kibana-plugin-public.plugin.md) > [setup](./kibana-plugin-public.plugin.setup.md)
 
-## Plugin.setup property
+## Plugin.setup() method
 
 <b>Signature:</b>
 
 ```typescript
-setup: (core: CoreSetup, plugins: TPluginsSetup) => TSetup | Promise<TSetup>;
+setup(core: CoreSetup, plugins: TPluginsSetup): TSetup | Promise<TSetup>;
 ```
+
+## Parameters
+
+|  Parameter | Type | Description |
+|  --- | --- | --- |
+|  core | <code>CoreSetup</code> |  |
+|  plugins | <code>TPluginsSetup</code> |  |
+
+<b>Returns:</b>
+
+`TSetup | Promise<TSetup>`
+

docs/development/core/public/kibana-plugin-public.plugin.start.md

@@ -2,10 +2,22 @@
 
 [Home](./index.md) > [kibana-plugin-public](./kibana-plugin-public.md) > [Plugin](./kibana-plugin-public.plugin.md) > [start](./kibana-plugin-public.plugin.start.md)
 
-## Plugin.start property
+## Plugin.start() method
 
 <b>Signature:</b>
 
 ```typescript
-start: (core: CoreStart, plugins: TPluginsStart) => TStart | Promise<TStart>;
+start(core: CoreStart, plugins: TPluginsStart): TStart | Promise<TStart>;
 ```
+
+## Parameters
+
+|  Parameter | Type | Description |
+|  --- | --- | --- |
+|  core | <code>CoreStart</code> |  |
+|  plugins | <code>TPluginsStart</code> |  |
+
+<b>Returns:</b>
+
+`TStart | Promise<TStart>`
+

docs/development/core/public/kibana-plugin-public.plugin.stop.md

@@ -2,10 +2,14 @@
 
 [Home](./index.md) > [kibana-plugin-public](./kibana-plugin-public.md) > [Plugin](./kibana-plugin-public.plugin.md) > [stop](./kibana-plugin-public.plugin.stop.md)
 
-## Plugin.stop property
+## Plugin.stop() method
 
 <b>Signature:</b>
 
 ```typescript
-stop?: () => void;
+stop?(): void;
 ```
+<b>Returns:</b>
+
+`void`
+

docs/development/core/server/kibana-plugin-server.plugin.md

@@ -9,14 +9,14 @@ The interface that should be returned by a `PluginInitializer`<!-- -->.
 <b>Signature:</b>
 
 ```typescript
-export interface Plugin<TSetup, TStart, TPluginsSetup extends Record<PluginName, unknown> = {}, TPluginsStart extends Record<PluginName, unknown> = {}> 
+export interface Plugin<TSetup = void, TStart = void, TPluginsSetup extends {} = {}, TPluginsStart extends {} = {}> 
 ```
 
-## Properties
+## Methods
 
-|  Property | Type | Description |
-|  --- | --- | --- |
-|  [setup](./kibana-plugin-server.plugin.setup.md) | <code>(core: CoreSetup, plugins: TPluginsSetup) =&gt; TSetup &#124; Promise&lt;TSetup&gt;</code> |  |
-|  [start](./kibana-plugin-server.plugin.start.md) | <code>(core: CoreStart, plugins: TPluginsStart) =&gt; TStart &#124; Promise&lt;TStart&gt;</code> |  |
-|  [stop](./kibana-plugin-server.plugin.stop.md) | <code>() =&gt; void</code> |  |
+|  Method | Description |
+|  --- | --- |
+|  [setup(core, plugins)](./kibana-plugin-server.plugin.setup.md) |  |
+|  [start(core, plugins)](./kibana-plugin-server.plugin.start.md) |  |
+|  [stop()](./kibana-plugin-server.plugin.stop.md) |  |
 

docs/development/core/server/kibana-plugin-server.plugin.setup.md

@@ -2,10 +2,22 @@
 
 [Home](./index.md) > [kibana-plugin-server](./kibana-plugin-server.md) > [Plugin](./kibana-plugin-server.plugin.md) > [setup](./kibana-plugin-server.plugin.setup.md)
 
-## Plugin.setup property
+## Plugin.setup() method
 
 <b>Signature:</b>
 
 ```typescript
-setup: (core: CoreSetup, plugins: TPluginsSetup) => TSetup | Promise<TSetup>;
+setup(core: CoreSetup, plugins: TPluginsSetup): TSetup | Promise<TSetup>;
 ```
+
+## Parameters
+
+|  Parameter | Type | Description |
+|  --- | --- | --- |
+|  core | <code>CoreSetup</code> |  |
+|  plugins | <code>TPluginsSetup</code> |  |
+
+<b>Returns:</b>
+
+`TSetup | Promise<TSetup>`
+

docs/development/core/server/kibana-plugin-server.plugin.start.md

@@ -2,10 +2,22 @@
 
 [Home](./index.md) > [kibana-plugin-server](./kibana-plugin-server.md) > [Plugin](./kibana-plugin-server.plugin.md) > [start](./kibana-plugin-server.plugin.start.md)
 
-## Plugin.start property
+## Plugin.start() method
 
 <b>Signature:</b>
 
 ```typescript
-start: (core: CoreStart, plugins: TPluginsStart) => TStart | Promise<TStart>;
+start(core: CoreStart, plugins: TPluginsStart): TStart | Promise<TStart>;
 ```
+
+## Parameters
+
+|  Parameter | Type | Description |
+|  --- | --- | --- |
+|  core | <code>CoreStart</code> |  |
+|  plugins | <code>TPluginsStart</code> |  |
+
+<b>Returns:</b>
+
+`TStart | Promise<TStart>`
+

docs/development/core/server/kibana-plugin-server.plugin.stop.md

@@ -2,10 +2,14 @@
 
 [Home](./index.md) > [kibana-plugin-server](./kibana-plugin-server.md) > [Plugin](./kibana-plugin-server.plugin.md) > [stop](./kibana-plugin-server.plugin.stop.md)
 
-## Plugin.stop property
+## Plugin.stop() method
 
 <b>Signature:</b>
 
 ```typescript
-stop?: () => void;
+stop?(): void;
 ```
+<b>Returns:</b>
+
+`void`
+

src/core/public/plugins/plugin.ts

@@ -28,14 +28,14 @@ import { CoreStart, CoreSetup } from '..';
  * @public
  */
 export interface Plugin<
-  TSetup,
-  TStart,
-  TPluginsSetup extends Record<string, unknown> = {},
-  TPluginsStart extends Record<string, unknown> = {}
+  TSetup = void,
+  TStart = void,
+  TPluginsSetup extends {} = {},
+  TPluginsStart extends {} = {}
 > {
-  setup: (core: CoreSetup, plugins: TPluginsSetup) => TSetup | Promise<TSetup>;
-  start: (core: CoreStart, plugins: TPluginsStart) => TStart | Promise<TStart>;
-  stop?: () => void;
+  setup(core: CoreSetup, plugins: TPluginsSetup): TSetup | Promise<TSetup>;
+  start(core: CoreStart, plugins: TPluginsStart): TStart | Promise<TStart>;
+  stop?(): void;
 }
 
 /**

src/core/public/public.api.md

@@ -475,13 +475,13 @@ export interface OverlayStart {
 }
 
 // @public
-export interface Plugin<TSetup, TStart, TPluginsSetup extends Record<string, unknown> = {}, TPluginsStart extends Record<string, unknown> = {}> {
+export interface Plugin<TSetup = void, TStart = void, TPluginsSetup extends {} = {}, TPluginsStart extends {} = {}> {
     // (undocumented)
-    setup: (core: CoreSetup, plugins: TPluginsSetup) => TSetup | Promise<TSetup>;
+    setup(core: CoreSetup, plugins: TPluginsSetup): TSetup | Promise<TSetup>;
     // (undocumented)
-    start: (core: CoreStart, plugins: TPluginsStart) => TStart | Promise<TStart>;
+    start(core: CoreStart, plugins: TPluginsStart): TStart | Promise<TStart>;
     // (undocumented)
-    stop?: () => void;
+    stop?(): void;
 }
 
 // @public

src/core/server/plugins/plugin.ts

@@ -136,14 +136,14 @@ export interface DiscoveredPluginInternal extends DiscoveredPlugin {
  * @public
  */
 export interface Plugin<
-  TSetup,
-  TStart,
-  TPluginsSetup extends Record<PluginName, unknown> = {},
-  TPluginsStart extends Record<PluginName, unknown> = {}
+  TSetup = void,
+  TStart = void,
+  TPluginsSetup extends {} = {},
+  TPluginsStart extends {} = {}
 > {
-  setup: (core: CoreSetup, plugins: TPluginsSetup) => TSetup | Promise<TSetup>;
-  start: (core: CoreStart, plugins: TPluginsStart) => TStart | Promise<TStart>;
-  stop?: () => void;
+  setup(core: CoreSetup, plugins: TPluginsSetup): TSetup | Promise<TSetup>;
+  start(core: CoreStart, plugins: TPluginsStart): TStart | Promise<TStart>;
+  stop?(): void;
 }
 
 /**

src/core/server/server.api.md

@@ -313,13 +313,13 @@ export interface OnPreAuthToolkit {
 }
 
 // @public
-export interface Plugin<TSetup, TStart, TPluginsSetup extends Record<PluginName, unknown> = {}, TPluginsStart extends Record<PluginName, unknown> = {}> {
+export interface Plugin<TSetup = void, TStart = void, TPluginsSetup extends {} = {}, TPluginsStart extends {} = {}> {
     // (undocumented)
-    setup: (core: CoreSetup, plugins: TPluginsSetup) => TSetup | Promise<TSetup>;
+    setup(core: CoreSetup, plugins: TPluginsSetup): TSetup | Promise<TSetup>;
     // (undocumented)
-    start: (core: CoreStart, plugins: TPluginsStart) => TStart | Promise<TStart>;
+    start(core: CoreStart, plugins: TPluginsStart): TStart | Promise<TStart>;
     // (undocumented)
-    stop?: () => void;
+    stop?(): void;
 }
 
 // @public

src/legacy/core_plugins/data/public/query/query_bar/index.ts

@@ -25,7 +25,4 @@ export { getQueryLog } from './lib/get_query_log';
 // @ts-ignore
 export { setupDirective } from './directive';
 
-export interface Query {
-  query: string | { [key: string]: any };
-  language: string;
-}
+export { Query } from '../../../../../../plugins/data/common/query/types';

src/legacy/core_plugins/input_control_vis/public/input_control_fn.test.js

@@ -20,6 +20,8 @@
 import { functionWrapper } from '../../interpreter/test_helpers';
 import { inputControlVis } from './input_control_fn';
 
+jest.mock('ui/new_platform', () => require('../../../ui/public/new_platform/index.test.mocks').mockNewPlatformBackdoor());
+
 describe('interpreter/functions#input_control_vis', () => {
   const fn = functionWrapper(inputControlVis);
   const visConfig = {

src/legacy/core_plugins/interpreter/common/index.ts

@@ -34,4 +34,10 @@ export {
   PointSeriesColumnName,
   Render,
   Style,
-} from './types';
+} from '../../../../plugins/data/common/expressions/expression_types';
+export const API_ROUTE = '/api/interpreter';
+export * from '../../../../plugins/data/common/expressions/serialize_provider';
+export { Type } from '../../../../plugins/data/common/expressions/interpreter';
+export {
+  interpreterProvider,
+} from '../../../../plugins/data/common/expressions/interpreter_provider';

src/legacy/core_plugins/interpreter/init.ts

@@ -17,20 +17,31 @@
  * under the License.
  */
 
+/* eslint-disable max-classes-per-file */
+
 // @ts-ignore
-import { register, registryFactory } from '@kbn/interpreter/common';
+import { register, registryFactory, Registry, Fn } from '@kbn/interpreter/common';
 
 // @ts-ignore
 import { routes } from './server/routes';
 
+// @ts-ignore
+import { typeSpecs as types } from '../../../plugins/data/common/expressions/expression_types';
+
+import { Type } from './common';
 import { Legacy } from '../../../../kibana';
 
-// @ts-ignore
-import { FunctionsRegistry } from './common/functions_registry';
-// @ts-ignore
-import { typeSpecs as types } from './common/types';
-// @ts-ignore
-import { TypesRegistry } from './common/types_registry';
+export class TypesRegistry extends Registry<any, any> {
+  wrapper(obj: any) {
+    return new (Type as any)(obj);
+  }
+}
+
+export class FunctionsRegistry extends Registry<any, any> {
+  wrapper(obj: any) {
+    return new Fn(obj);
+  }
+}
 
 export const registries = {
   types: new TypesRegistry(),

src/legacy/core_plugins/interpreter/public/functions/esaggs.ts

@@ -37,7 +37,7 @@ const courierRequestHandlerProvider = CourierRequestHandlerProvider;
 const courierRequestHandler = courierRequestHandlerProvider().handler;
 
 import { ExpressionFunction } from '../../types';
-import { KibanaContext, KibanaDatatable } from '../../common/types';
+import { KibanaContext, KibanaDatatable } from '../../common';
 
 const name = 'esaggs';
 

src/legacy/core_plugins/interpreter/public/functions/range.ts

@@ -18,7 +18,7 @@
  */
 
 import { i18n } from '@kbn/i18n';
-import { KibanaDatatable, Range } from '../../common/types';
+import { KibanaDatatable, Range } from '../../types';
 import { ExpressionFunction } from '../../types';
 
 const name = 'range';

src/legacy/core_plugins/interpreter/public/interpreter.js

@@ -25,7 +25,7 @@ import { kfetch } from 'ui/kfetch';
 import { ajaxStream } from 'ui/ajax_stream';
 import { functions } from './functions';
 import { visualization } from './renderers/visualization';
-import { typeSpecs } from '../common/types';
+import { typeSpecs } from '../../../../plugins/data/common/expressions/expression_types';
 
 // Expose kbnInterpreter.register(specs) and kbnInterpreter.registries() globally so that plugins
 // can register without a transpile step.

src/legacy/core_plugins/interpreter/public/lib/interpreter.js

@@ -17,8 +17,7 @@
  * under the License.
  */
 
-import { interpreterProvider } from '../../common/interpreter/interpret';
-import { serializeProvider } from '../../common/serialize';
+import { interpreterProvider, serializeProvider } from '../../common';
 import { createHandlers } from './create_handlers';
 import { batchedFetch } from './batched_fetch';
 import { FUNCTIONS_URL } from './consts';

src/legacy/core_plugins/interpreter/public/lib/interpreter.test.js

@@ -20,11 +20,7 @@
 import { FUNCTIONS_URL } from './consts';
 import { initializeInterpreter } from './interpreter';
 
-jest.mock('../../common/interpreter/interpret', () => ({
-  interpreterProvider: () => () => ({}),
-}));
-
-jest.mock('../../common/serialize', () => ({
+jest.mock('../../common', () => ({
   serializeProvider: () => ({ serialize: () => ({}) }),
 }));
 

src/legacy/core_plugins/interpreter/public/registries.karma_mock.ts

@@ -0,0 +1,43 @@
+/*
+ * Licensed to Elasticsearch B.V. under one or more contributor
+ * license agreements. See the NOTICE file distributed with
+ * this work for additional information regarding copyright
+ * ownership. Elasticsearch B.V. licenses this file to you under
+ * the Apache License, Version 2.0 (the "License"); you may
+ * not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *    http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+import sinon from 'sinon';
+
+export const functionsRegistry = {};
+export const renderersRegistry = {};
+export const typesRegistry = {};
+export const registries = {
+  browserFunctions: functionsRegistry,
+  renderers: renderersRegistry,
+  types: typesRegistry,
+};
+
+const resetRegistry = (registry: any) => {
+  registry.wrapper = sinon.stub();
+  registry.register = sinon.stub();
+  registry.toJS = sinon.stub();
+  registry.toArray = sinon.stub();
+  registry.get = sinon.stub();
+  registry.getProp = sinon.stub();
+  registry.reset = sinon.stub();
+};
+const resetAll = () => Object.values(registries).forEach(resetRegistry);
+
+resetAll();
+afterEach(resetAll);

src/legacy/core_plugins/interpreter/public/registries.ts

@@ -17,14 +17,16 @@
  * under the License.
  */
 
-import { typesRegistry } from './type_registry';
-import { functionsRegistry } from './functions_registry';
-import { renderersRegistry } from './renderer_registry';
+import { npSetup } from 'ui/new_platform';
 
-const registries = {
+export const functionsRegistry =
+  npSetup.plugins.data.expressions.__SECRET_INTERNALS_DO_NOT_USE_OR_YOU_WILL_BE_FIRED.functions;
+export const renderersRegistry =
+  npSetup.plugins.data.expressions.__SECRET_INTERNALS_DO_NOT_USE_OR_YOU_WILL_BE_FIRED.renderers;
+export const typesRegistry =
+  npSetup.plugins.data.expressions.__SECRET_INTERNALS_DO_NOT_USE_OR_YOU_WILL_BE_FIRED.types;
+export const registries = {
   browserFunctions: functionsRegistry,
   renderers: renderersRegistry,
   types: typesRegistry,
 };
-
-export { registries, typesRegistry, functionsRegistry, renderersRegistry };

src/legacy/core_plugins/interpreter/server/routes/server_functions.js

@@ -18,8 +18,7 @@
  */
 
 import Boom from 'boom';
-import { serializeProvider } from '../../common/serialize';
-import { API_ROUTE } from '../../common/constants';
+import { serializeProvider, API_ROUTE } from '../../common';
 import { createHandlers } from '../lib/create_handlers';
 import Joi from 'joi';
 

src/legacy/core_plugins/interpreter/types/arguments.ts

@@ -17,126 +17,4 @@
  * under the License.
  */
 
-import { KnownTypeToString, TypeString, UnmappedTypeStrings } from './common';
-
-/**
- * This type represents all of the possible combinations of properties of an
- * Argument in an Expression Function. The presence or absence of certain fields
- * influence the shape and presence of others within each `arg` in the specification.
- */
-export type ArgumentType<T> =
-  | SingleArgumentType<T>
-  | MultipleArgumentType<T>
-  | UnresolvedSingleArgumentType<T>
-  | UnresolvedMultipleArgumentType<T>;
-
-/**
- * Map the type within the the generic array to a string-based
- * representation of the type.
- */
-// prettier-ignore
-type ArrayTypeToArgumentString<T> = 
-  T extends Array<infer ElementType> ? TypeString<ElementType> : 
-  T extends null ? 'null' : 
-  never;
-
-/**
- * Map the return type of the function within the generic to a
- * string-based representation of the return type.
- */
-// prettier-ignore
-type UnresolvedTypeToArgumentString<T> = 
-  T extends (...args: any) => infer ElementType ? TypeString<ElementType> : 
-  T extends null ? 'null' : 
-  never;
-
-/**
- * Map the array-based return type of the function within the generic to a
- * string-based representation of the return type.
- */
-// prettier-ignore
-type UnresolvedArrayTypeToArgumentString<T> = 
-  T extends Array<(...args: any) => infer ElementType> ? TypeString<ElementType> :
-  T extends (...args: any) => infer ElementType ? ArrayTypeToArgumentString<ElementType> : 
-  T extends null ? 'null' : 
-  never;
-
-/** A type containing properties common to all Function Arguments. */
-interface BaseArgumentType<T> {
-  /** Alternate names for the Function valid for use in the Expression Editor */
-  aliases?: string[];
-  /** Help text for the Argument to be displayed in the Expression Editor */
-  help: string;
-  /** Default options for the Argument */
-  options?: T[];
-  /**
-   * Is this Argument required?
-   * @default false
-   */
-  required?: boolean;
-  /**
-   * If false, the Argument is supplied as a function to be invoked in the
-   * implementation, rather than a value.
-   * @default true
-   */
-  resolve?: boolean;
-  /** Names of types that are valid values of the Argument. */
-  types?: string[];
-  /** The optional default value of the Argument. */
-  default?: T | string;
-  /**
-   * If true, multiple values may be supplied to the Argument.
-   * @default false
-   */
-  multi?: boolean;
-}
-
-/**
- * The `types` array in a `FunctionSpec` should contain string
- * representations of the `ArgumentsSpec` types:
- *
- * `someArgument: boolean | string` results in `types: ['boolean', 'string']`
- */
-type SingleArgumentType<T> = BaseArgumentType<T> & {
-  multi?: false;
-  resolve?: true;
-  types?: Array<KnownTypeToString<T> | UnmappedTypeStrings>;
-};
-
-/**
- * If the `multi` property on the argument is true, the `types` array should
- * contain string representations of the `ArgumentsSpec` array types:
- *
- * `someArgument: boolean[] | string[]` results in: `types: ['boolean', 'string']`
- */
-type MultipleArgumentType<T> = BaseArgumentType<T> & {
-  multi: true;
-  resolve?: true;
-  types?: Array<ArrayTypeToArgumentString<T> | UnmappedTypeStrings>;
-};
-
-/**
- * If the `resolve` property on the arugument is false, the `types` array, if
- * present, should contain string representations of the result of the argument
- * function:
- *
- * `someArgument: () => string` results in `types: ['string']`
- */
-type UnresolvedSingleArgumentType<T> = BaseArgumentType<T> & {
-  multi?: false;
-  resolve: false;
-  types?: Array<UnresolvedTypeToArgumentString<T> | UnmappedTypeStrings>;
-};
-
-/**
- * If the `resolve` property on the arugument is false, the `types` array, if
- * present, should contain string representations of the result of the argument
- * function:
- *
- * `someArgument: () => string[]` results in `types: ['string']`
- */
-type UnresolvedMultipleArgumentType<T> = BaseArgumentType<T> & {
-  multi: true;
-  resolve: false;
-  types?: Array<UnresolvedArrayTypeToArgumentString<T> | UnmappedTypeStrings>;
-};
+export * from '../../../../plugins/data/common/expressions/types/arguments';

src/legacy/core_plugins/interpreter/types/common.ts

@@ -17,44 +17,4 @@
  * under the License.
  */
 
-/**
- * This can convert a type into a known Expression string representation of
- * that type. For example, `TypeToString<Datatable>` will resolve to `'datatable'`.
- * This allows Expression Functions to continue to specify their type in a
- * simple string format.
- */
-export type TypeToString<T> = KnownTypeToString<T> | UnmappedTypeStrings;
-
-/**
- * Map the type of the generic to a string-based representation of the type.
- *
- * If the provided generic is its own type interface, we use the value of
- * the `type` key as a string literal type for it.
- */
-// prettier-ignore
-export type KnownTypeToString<T> = 
-  T extends string ? 'string' : 
-  T extends boolean ? 'boolean' : 
-  T extends number ? 'number' :
-  T extends null ? 'null' :
-  T extends { type: string } ? T['type'] :
-  never;
-
-/**
- * If the type extends a Promise, we still need to return the string representation:
- *
- * `someArgument: Promise<boolean | string>` results in `types: ['boolean', 'string']`
- */
-export type TypeString<T> = KnownTypeToString<UnwrapPromise<T>>;
-
-/**
- * Types used in Expressions that don't map to a primitive cleanly:
- *
- * `date` is typed as a number or string, and represents a date
- */
-export type UnmappedTypeStrings = 'date' | 'filter';
-
-/**
- * Utility type: extracts returned type from a Promise.
- */
-export type UnwrapPromise<T> = T extends Promise<infer P> ? P : T;
+export * from '../../../../plugins/data/common/expressions/types/common';

src/legacy/core_plugins/interpreter/types/functions.ts

@@ -17,31 +17,4 @@
  * under the License.
  */
 
-import { ArgumentType } from './arguments';
-import { TypeToString, UnwrapPromise } from './common';
-
-/**
- * A generic type which represents an Expression Function definition.
- */
-export interface ExpressionFunction<Name extends string, Context, Arguments, Return> {
-  /** Arguments for the Function */
-  args: { [key in keyof Arguments]: ArgumentType<Arguments[key]> };
-  aliases?: string[];
-  context?: {
-    types: Array<TypeToString<Context>>;
-  };
-  /** Help text displayed in the Expression editor */
-  help: string;
-  /** The name of the Function */
-  name: Name;
-  /** The type of the Function */
-  type?: TypeToString<UnwrapPromise<Return>>;
-  /** The implementation of the Function */
-  fn(context: Context, args: Arguments, handlers: FunctionHandlers): Return;
-}
-
-// TODO: Handlers can be passed to the `fn` property of the Function.  At the moment, these Functions
-// are not strongly defined.
-interface FunctionHandlers {
-  [key: string]: (...args: any) => any;
-}
+export * from '../../../../plugins/data/common/expressions/types/functions';

src/legacy/core_plugins/interpreter/types/index.ts

@@ -17,14 +17,4 @@
  * under the License.
  */
 
-export { ArgumentType } from './arguments';
-export {
-  TypeToString,
-  KnownTypeToString,
-  TypeString,
-  UnmappedTypeStrings,
-  UnwrapPromise,
-} from './common';
-export { ExpressionFunction } from './functions';
-export { ExpressionType } from './types';
-export * from '../common/types';
+export * from '../../../../plugins/data/common';

src/legacy/core_plugins/interpreter/types/types.ts

@@ -17,17 +17,4 @@
  * under the License.
  */
 
-/**
- * A generic type which represents a custom Expression Type Definition that's
- * registered to the Interpreter.
- */
-export interface ExpressionType<Name extends string, Type, SerializedType = undefined> {
-  name: Name;
-  validate?: (type: any) => void | Error;
-  serialize?: (type: Type) => SerializedType;
-  deserialize?: (type: SerializedType) => Type;
-  // TODO: Update typings for the `availableTypes` parameter once interfaces for this
-  // have been added elsewhere in the interpreter.
-  from?: Record<string, (ctx: any, availableTypes: Record<string, any>) => Type>;
-  to?: Record<string, (type: Type, availableTypes: Record<string, any>) => unknown>;
-}
+export * from '../../../../plugins/data/common/expressions/types/types';

src/legacy/core_plugins/kbn_vislib_vis_types/public/pie_fn.test.js

@@ -20,6 +20,8 @@
 import { functionWrapper } from '../../interpreter/test_helpers';
 import { kibanaPie } from './pie_fn';
 
+jest.mock('ui/new_platform', () => require('../../../ui/public/new_platform/index.test.mocks').mockNewPlatformBackdoor());
+
 const mockResponseHandler = jest.fn().mockReturnValue(Promise.resolve({
   hits: 1,
   names: ['Count'],

src/legacy/core_plugins/markdown_vis/public/markdown_fn.test.js

@@ -20,6 +20,8 @@
 import { functionWrapper } from '../../interpreter/test_helpers';
 import { kibanaMarkdown } from './markdown_fn';
 
+jest.mock('ui/new_platform', () => require('../../../ui/public/new_platform/index.test.mocks').mockNewPlatformBackdoor());
+
 describe('interpreter/functions#markdown', () => {
   const fn = functionWrapper(kibanaMarkdown);
   const args = {

src/legacy/core_plugins/metric_vis/public/metric_vis_fn.test.js

@@ -20,6 +20,8 @@
 import { functionWrapper } from '../../interpreter/test_helpers';
 import { metric } from './metric_vis_fn';
 
+jest.mock('ui/new_platform', () => require('../../../ui/public/new_platform/index.test.mocks').mockNewPlatformBackdoor());
+
 describe('interpreter/functions#metric', () => {
   const fn = functionWrapper(metric);
   const context = {

src/legacy/core_plugins/region_map/public/region_map_fn.test.js

@@ -20,6 +20,8 @@
 import { functionWrapper } from '../../interpreter/test_helpers';
 import { regionmap } from './region_map_fn';
 
+jest.mock('ui/new_platform', () => require('../../../ui/public/new_platform/index.test.mocks').mockNewPlatformBackdoor());
+
 describe('interpreter/functions#regionmap', () => {
   const fn = functionWrapper(regionmap);
   const context = {

src/legacy/core_plugins/table_vis/public/table_vis_fn.test.js

@@ -20,6 +20,8 @@
 import { functionWrapper } from '../../interpreter/test_helpers';
 import { kibanaTable } from './table_vis_fn';
 
+jest.mock('ui/new_platform', () => require('../../../ui/public/new_platform/index.test.mocks').mockNewPlatformBackdoor());
+
 const mockResponseHandler = jest.fn().mockReturnValue(Promise.resolve({
   tables: [{ columns: [], rows: [] }],
 }));

src/legacy/core_plugins/tagcloud/public/tag_cloud_fn.test.js

@@ -20,6 +20,8 @@
 import { functionWrapper } from '../../interpreter/test_helpers';
 import { tagcloud } from './tag_cloud_fn';
 
+jest.mock('ui/new_platform', () => require('../../../ui/public/new_platform/index.test.mocks').mockNewPlatformBackdoor());
+
 describe('interpreter/functions#tagcloud', () => {
   const fn = functionWrapper(tagcloud);
   const context = {

src/legacy/core_plugins/tests_bundle/index.js

@@ -21,6 +21,7 @@ import { createReadStream } from 'fs';
 
 import globby from 'globby';
 import MultiStream from 'multistream';
+import webpackMerge from 'webpack-merge';
 
 import { fromRoot } from '../../../legacy/utils';
 import { replacePlaceholder } from '../../../optimize/public_path_placeholder';
@@ -94,7 +95,7 @@ export default (kibana) => {
           uiBundles.addPostLoader({
             test: /\.js$/,
             exclude: /[\/\\](__tests__|node_modules|bower_components|webpackShims)[\/\\]/,
-            loader: 'istanbul-instrumenter-loader'
+            loader: 'istanbul-instrumenter-loader',
           });
         }
 
@@ -102,6 +103,13 @@ export default (kibana) => {
           id: 'tests',
           modules: [...modules],
           template: createTestEntryTemplate(uiSettingDefaults),
+          extendConfig(webpackConfig) {
+            return webpackMerge({
+              resolve: {
+                extensions: ['.karma_mock.js', '.karma_mock.tsx', '.karma_mock.ts']
+              }
+            }, webpackConfig);
+          }
         });
 
         kbnServer.server.route({

src/legacy/core_plugins/tile_map/public/tilemap_fn.test.js

@@ -20,6 +20,7 @@
 import { functionWrapper } from '../../interpreter/test_helpers';
 import { tilemap } from './tilemap_fn';
 
+jest.mock('ui/new_platform', () => require('../../../ui/public/new_platform/index.test.mocks').mockNewPlatformBackdoor());
 jest.mock('ui/vis/map/convert_to_geojson', () => ({
   convertToGeoJson: jest.fn().mockReturnValue({
     featureCollection: {

src/legacy/ui/public/new_platform/index.test.mocks.ts

@@ -0,0 +1,68 @@
+/*
+ * Licensed to Elasticsearch B.V. under one or more contributor
+ * license agreements. See the NOTICE file distributed with
+ * this work for additional information regarding copyright
+ * ownership. Elasticsearch B.V. licenses this file to you under
+ * the Apache License, Version 2.0 (the "License"); you may
+ * not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *    http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+export const mockNewPlatformBackdoor = () => {
+  return {
+    __setup__: () => {},
+    __start__: () => {},
+    npSetup: {
+      core: {
+        i18n: {
+          Context: {},
+        },
+        chrome: {
+          recentlyAccessed: false,
+        },
+      },
+      plugins: {
+        data: {
+          expressions: {
+            __SECRET_INTERNALS_DO_NOT_USE_OR_YOU_WILL_BE_FIRED: {
+              functions: {
+                register: () => {},
+              },
+              renderers: {
+                register: () => {},
+              },
+              types: {
+                register: () => {},
+              },
+            },
+          },
+        },
+      },
+    },
+    npStart: {
+      core: {
+        uiSettings: {
+          get: () => true,
+        },
+        chrome: {
+          recentlyAccessed: false,
+        },
+        i18n: {
+          Context: () => {},
+        },
+      },
+      plugins: {
+        data: {},
+      },
+    },
+  };
+};

src/legacy/ui/public/new_platform/new_platform.ts

@@ -17,15 +17,24 @@
  * under the License.
  */
 import { InternalCoreSetup, InternalCoreStart } from '../../../../core/public';
+import { Plugin as DataPlugin } from '../../../../plugins/data/public';
+
+export interface PluginsSetup {
+  data: ReturnType<DataPlugin['setup']>;
+}
+
+export interface PluginsStart {
+  data: ReturnType<DataPlugin['start']>;
+}
 
 export const npSetup = {
   core: (null as unknown) as InternalCoreSetup,
-  plugins: {} as Record<string, unknown>,
+  plugins: {} as PluginsSetup,
 };
 
 export const npStart = {
   core: (null as unknown) as InternalCoreStart,
-  plugins: {} as Record<string, unknown>,
+  plugins: {} as PluginsStart,
 };
 
 /**
@@ -34,15 +43,17 @@ export const npStart = {
  */
 export function __reset__() {
   npSetup.core = (null as unknown) as InternalCoreSetup;
+  npSetup.plugins = {} as any;
   npStart.core = (null as unknown) as InternalCoreStart;
+  npStart.plugins = {} as any;
 }
 
-export function __setup__(coreSetup: InternalCoreSetup, plugins: Record<string, unknown>) {
+export function __setup__(coreSetup: InternalCoreSetup, plugins: PluginsSetup) {
   npSetup.core = coreSetup;
   npSetup.plugins = plugins;
 }
 
-export function __start__(coreStart: InternalCoreStart, plugins: Record<string, unknown>) {
+export function __start__(coreStart: InternalCoreStart, plugins: PluginsStart) {
   npStart.core = coreStart;
   npStart.plugins = plugins;
 }

src/legacy/ui/public/visualize/loader/embedded_visualize_handler.test.ts

@@ -26,25 +26,9 @@ import { VisResponseData } from './types';
 import { Inspector } from '../../inspector';
 import { EmbeddedVisualizeHandler } from './embedded_visualize_handler';
 
-jest.mock('ui/new_platform', () => ({
-  npStart: {
-    core: {
-      i18n: {
-        Context: {},
-      },
-      chrome: {
-        recentlyAccessed: false,
-      },
-    },
-  },
-  npSetup: {
-    core: {
-      uiSettings: {
-        get: () => true,
-      },
-    },
-  },
-}));
+jest.mock('ui/new_platform', () =>
+  require('../../../../ui/public/new_platform/index.test.mocks').mockNewPlatformBackdoor()
+);
 
 describe('EmbeddedVisualizeHandler', () => {
   let handler: any;

src/legacy/ui/ui_bundles/ui_bundle.js

@@ -32,12 +32,14 @@ export class UiBundle {
       modules,
       template,
       controller,
+      extendConfig,
     } = options;
 
     this._id = id;
     this._modules = modules;
     this._template = template;
     this._controller = controller;
+    this._extendConfig = extendConfig;
   }
 
   getId() {
@@ -126,4 +128,12 @@ export class UiBundle {
       outputPath: this.getOutputPath()
     };
   }
+
+  getExtendedConfig(webpackConfig) {
+    if (!this._extendConfig) {
+      return webpackConfig;
+    }
+
+    return this._extendConfig(webpackConfig);
+  }
 }

src/legacy/ui/ui_bundles/ui_bundles_controller.js

@@ -96,6 +96,7 @@ export class UiBundlesController {
       id,
       modules,
       template,
+      extendConfig,
     } = bundleSpec;
 
     if (this._filter.test(id)) {
@@ -104,6 +105,7 @@ export class UiBundlesController {
         modules,
         template,
         controller: this,
+        extendConfig,
       }));
     }
   }
@@ -223,4 +225,8 @@ export class UiBundlesController {
     return this._bundles
       .map(bundle => bundle.getId());
   }
+
+  getExtendedConfig(webpackConfig) {
+    return this._bundles.reduce((acc, bundle) => bundle.getExtendedConfig(acc), webpackConfig);
+  }
 }

src/optimize/base_optimizer.js

@@ -472,14 +472,16 @@ export default class BaseOptimizer {
       }
     };
 
-    return webpackMerge(
-      commonConfig,
-      IS_KIBANA_DISTRIBUTABLE
-        ? isDistributableConfig
-        : {},
-      this.uiBundles.isDevMode()
-        ? webpackMerge(watchingConfig, supportEnzymeConfig)
-        : productionConfig
+    return this.uiBundles.getExtendedConfig(
+      webpackMerge(
+        commonConfig,
+        IS_KIBANA_DISTRIBUTABLE
+          ? isDistributableConfig
+          : {},
+        this.uiBundles.isDevMode()
+          ? webpackMerge(watchingConfig, supportEnzymeConfig)
+          : productionConfig
+      )
     );
   }
 

src/plugins/data/README.md

@@ -0,0 +1,9 @@
+# data
+
+`data` plugin provides common data access services.
+
+- `expressions` — run pipeline functions and render results.
+- `filter`
+- `index_patterns`
+- `query`
+- `search`

src/plugins/data/common/expressions/create_error.ts

@@ -17,7 +17,7 @@
  * under the License.
  */
 
-export const createError = err => ({
+export const createError = (err: any) => ({
   type: 'error',
   error: {
     stack: process.env.NODE_ENV === 'production' ? undefined : err.stack,

src/plugins/data/common/expressions/expression_types/boolean.ts

@@ -17,7 +17,7 @@
  * under the License.
  */
 
-import { ExpressionType } from '../../types';
+import { ExpressionType } from '../types';
 import { Datatable } from './datatable';
 import { Render } from './render';
 

src/plugins/data/common/expressions/expression_types/datatable.ts

@@ -19,7 +19,7 @@
 
 import { map, pick, zipObject } from 'lodash';
 
-import { ExpressionType } from '../../types';
+import { ExpressionType } from '../types';
 import { PointSeries } from './pointseries';
 import { Render } from './render';
 

src/plugins/data/common/expressions/expression_types/error.ts

@@ -17,7 +17,7 @@
  * under the License.
  */
 
-import { ExpressionType } from '../../types';
+import { ExpressionType } from '../types';
 import { Render } from './render';
 
 const name = 'error';

src/plugins/data/common/expressions/expression_types/filter.ts

@@ -17,7 +17,7 @@
  * under the License.
  */
 
-import { ExpressionType } from '../../types';
+import { ExpressionType } from '../types';
 
 const name = 'filter';
 

src/plugins/data/common/expressions/expression_types/image.ts

@@ -17,7 +17,7 @@
  * under the License.
  */
 
-import { ExpressionType } from '../../types';
+import { ExpressionType } from '../types';
 import { Render } from './render';
 
 const name = 'image';

src/plugins/data/common/expressions/expression_types/kibana_context.ts

@@ -17,12 +17,16 @@
  * under the License.
  */
 
-import { Query } from 'src/legacy/core_plugins/data/public';
-import { TimeRange } from 'ui/timefilter/time_history';
 import { Filter } from '@kbn/es-query';
+import { Query } from '../../query/types';
 
 const name = 'kibana_context';
 
+interface TimeRange {
+  from: string;
+  to: string;
+}
+
 export interface KibanaContext {
   type: typeof name;
   query?: Query;

src/plugins/data/common/expressions/expression_types/null.ts

@@ -17,7 +17,7 @@
  * under the License.
  */
 
-import { ExpressionType } from '../../types';
+import { ExpressionType } from '../types';
 
 const name = 'null';
 

src/plugins/data/common/expressions/expression_types/number.ts

@@ -17,7 +17,7 @@
  * under the License.
  */
 
-import { ExpressionType } from '../../types';
+import { ExpressionType } from '../types';
 import { Datatable } from './datatable';
 import { Render } from './render';
 

src/plugins/data/common/expressions/expression_types/pointseries.ts

@@ -17,7 +17,7 @@
  * under the License.
  */
 
-import { ExpressionType } from '../../types';
+import { ExpressionType } from '../types';
 import { Datatable } from './datatable';
 import { Render } from './render';
 

src/plugins/data/common/expressions/expression_types/range.ts

@@ -17,7 +17,7 @@
  * under the License.
  */
 
-import { ExpressionType, Render } from '../../types';
+import { ExpressionType, Render } from '../../../common/expressions/types';
 
 const name = 'range';
 

src/plugins/data/common/expressions/expression_types/render.ts

@@ -17,7 +17,7 @@
  * under the License.
  */
 
-import { ExpressionType } from '../../types';
+import { ExpressionType } from '../types';
 
 const name = 'render';
 

src/plugins/data/common/expressions/expression_types/shape.ts

@@ -17,7 +17,7 @@
  * under the License.
  */
 
-import { ExpressionType } from '../../types';
+import { ExpressionType } from '../types';
 import { Render } from './render';
 
 const name = 'shape';

src/plugins/data/common/expressions/expression_types/string.ts

@@ -17,7 +17,7 @@
  * under the License.
  */
 
-import { ExpressionType } from '../../types';
+import { ExpressionType } from '../types';
 import { Datatable } from './datatable';
 import { Render } from './render';
 

src/plugins/data/common/expressions/expression_types/style.ts

@@ -17,7 +17,7 @@
  * under the License.
  */
 
-import { ExpressionType } from '../../types';
+import { ExpressionType } from '../types';
 
 const name = 'style';
 

src/plugins/data/common/expressions/index.ts

@@ -17,4 +17,4 @@
  * under the License.
  */
 
-export const API_ROUTE = '/api/interpreter';
+export * from './types';

src/plugins/data/common/expressions/interpreter.ts

@@ -17,13 +17,18 @@
  * under the License.
  */
 
-// All types must be universal and be castable on the client or on the server
 import { get } from 'lodash';
-import { getType } from '@kbn/interpreter/common';
 
-// TODO: Currently all casting functions must be syncronous.
+function getType(node: any) {
+  if (node == null) return 'null';
+  if (typeof node === 'object') {
+    if (!node.type) throw new Error('Objects must have a type property');
+    return node.type;
+  }
+  return typeof node;
+}
 
-export function Type(config) {
+export function Type(this: any, config: any) {
   // Required
   this.name = config.name;
 
@@ -40,28 +45,27 @@ export function Type(config) {
   this.serialize = config.serialize;
   this.deserialize = config.deserialize;
 
-  const getToFn = type => get(config, ['to', type]) || get(config, ['to', '*']);
-  const getFromFn = type => get(config, ['from', type]) || get(config, ['from', '*']);
+  const getToFn = (type: any) => get(config, ['to', type]) || get(config, ['to', '*']);
+  const getFromFn = (type: any) => get(config, ['from', type]) || get(config, ['from', '*']);
 
-  this.castsTo = type => typeof getToFn(type) === 'function';
-  this.castsFrom = type => typeof getFromFn(type) === 'function';
+  this.castsTo = (type: any) => typeof getToFn(type) === 'function';
+  this.castsFrom = (type: any) => typeof getFromFn(type) === 'function';
 
-  this.to = (node, toTypeName, types) => {
+  this.to = (node: any, toTypeName: any, types: any) => {
     const typeName = getType(node);
     if (typeName !== this.name) {
       throw new Error(`Can not cast object of type '${typeName}' using '${this.name}'`);
-    }
-    else if (!this.castsTo(toTypeName)) {
+    } else if (!this.castsTo(toTypeName)) {
       throw new Error(`Can not cast '${typeName}' to '${toTypeName}'`);
     }
 
-    return getToFn(toTypeName)(node, types);
+    return (getToFn(toTypeName) as any)(node, types);
   };
 
-  this.from = (node, types) => {
+  this.from = (node: any, types: any) => {
     const typeName = getType(node);
     if (!this.castsFrom(typeName)) throw new Error(`Can not cast '${this.name}' from ${typeName}`);
 
-    return getFromFn(typeName)(node, types);
+    return (getFromFn(typeName) as any)(node, types);
   };
 }

src/plugins/data/common/expressions/interpreter_provider.ts

@@ -17,19 +17,25 @@
  * under the License.
  */
 
-import clone from 'lodash.clone';
-import { each, keys, last, mapValues, reduce, zipObject } from 'lodash';
-import { getType, fromExpression, getByAlias, castProvider } from '@kbn/interpreter/common';
-import { createError } from './create_error';
+/* eslint-disable @typescript-eslint/no-var-requires */
+import { clone, each, keys, last, mapValues, reduce, zipObject } from 'lodash';
 
-export function interpreterProvider(config) {
+// @ts-ignore
+import { fromExpression, getType, getByAlias, castProvider } from '@kbn/interpreter/common';
+
+import { createError } from './create_error';
+import { ExpressionAST } from './types';
+
+export { createError };
+
+export function interpreterProvider(config: any) {
   const { functions, types } = config;
   const handlers = { ...config.handlers, types };
   const cast = castProvider(types);
 
   return interpret;
 
-  async function interpret(node, context = null) {
+  async function interpret(node: ExpressionAST, context = null) {
     switch (getType(node)) {
       case 'expression':
         return invokeChain(node.chain, context);
@@ -43,7 +49,7 @@ export function interpreterProvider(config) {
     }
   }
 
-  async function invokeChain(chainArr, context) {
+  async function invokeChain(chainArr: any, context: any): Promise<any> {
     if (!chainArr.length) return Promise.resolve(context);
 
     const chain = clone(chainArr);
@@ -75,7 +81,7 @@ export function interpreterProvider(config) {
     }
   }
 
-  async function invokeFunction(fnDef, context, args) {
+  async function invokeFunction(fnDef: any, context: any, args: any): Promise<any> {
     // Check function input.
     const acceptableContext = cast(context, fnDef.context.types);
     const fnOutput = await fnDef.fn(acceptableContext, args, handlers);
@@ -105,23 +111,23 @@ export function interpreterProvider(config) {
   }
 
   // Processes the multi-valued AST argument values into arguments that can be passed to the function
-  async function resolveArgs(fnDef, context, argAsts) {
+  async function resolveArgs(fnDef: any, context: any, argAsts: any): Promise<any> {
     const argDefs = fnDef.args;
 
     // Use the non-alias name from the argument definition
     const dealiasedArgAsts = reduce(
       argAsts,
-      (argAsts, argAst, argName) => {
+      (acc, argAst, argName) => {
         const argDef = getByAlias(argDefs, argName);
         // TODO: Implement a system to allow for undeclared arguments
         if (!argDef) {
           throw new Error(`Unknown argument '${argName}' passed to function '${fnDef.name}'`);
         }
 
-        argAsts[argDef.name] = (argAsts[argDef.name] || []).concat(argAst);
-        return argAsts;
+        acc[argDef.name] = (acc[argDef.name] || []).concat(argAst);
+        return acc;
       },
-      {}
+      {} as any
     );
 
     // Check for missing required arguments
@@ -144,25 +150,25 @@ export function interpreterProvider(config) {
     // Fill in default values from argument definition
     const argAstsWithDefaults = reduce(
       argDefs,
-      (argAsts, argDef, argName) => {
-        if (typeof argAsts[argName] === 'undefined' && typeof argDef.default !== 'undefined') {
-          argAsts[argName] = [fromExpression(argDef.default, 'argument')];
+      (acc: any, argDef: any, argName: any) => {
+        if (typeof acc[argName] === 'undefined' && typeof argDef.default !== 'undefined') {
+          acc[argName] = [(fromExpression as any)(argDef.default, 'argument')];
         }
 
-        return argAsts;
+        return acc;
       },
       dealiasedArgAsts
     );
 
     // Create the functions to resolve the argument ASTs into values
     // These are what are passed to the actual functions if you opt out of resolving
-    const resolveArgFns = mapValues(argAstsWithDefaults, (argAsts, argName) => {
-      return argAsts.map(argAst => {
+    const resolveArgFns = mapValues(argAstsWithDefaults, (asts, argName) => {
+      return asts.map((item: any) => {
         return async (ctx = context) => {
-          const newContext = await interpret(argAst, ctx);
+          const newContext = await interpret(item, ctx);
           // This is why when any sub-expression errors, the entire thing errors
           if (getType(newContext) === 'error') throw newContext.error;
-          return cast(newContext, argDefs[argName].types);
+          return cast(newContext, argDefs[argName as any].types);
         };
       });
     });
@@ -174,7 +180,7 @@ export function interpreterProvider(config) {
       argNames.map(argName => {
         const interpretFns = resolveArgFns[argName];
         if (!argDefs[argName].resolve) return interpretFns;
-        return Promise.all(interpretFns.map(fn => fn()));
+        return Promise.all(interpretFns.map((fn: any) => fn()));
       })
     );
 
@@ -182,8 +188,8 @@ export function interpreterProvider(config) {
 
     // Just return the last unless the argument definition allows multiple
     const resolvedArgs = mapValues(resolvedMultiArgs, (argValues, argName) => {
-      if (argDefs[argName].multi) return argValues;
-      return last(argValues);
+      if (argDefs[argName as any].multi) return argValues;
+      return last(argValues as any);
     });
 
     // Return an object here because the arguments themselves might actually have a 'then'

src/plugins/data/common/expressions/serialize_provider.ts

@@ -18,19 +18,27 @@
  */
 
 import { get, identity } from 'lodash';
-import { getType } from '@kbn/interpreter/common';
 
-export function serializeProvider(types) {
+export function getType(node: any) {
+  if (node == null) return 'null';
+  if (typeof node === 'object') {
+    if (!node.type) throw new Error('Objects must have a type property');
+    return node.type;
+  }
+  return typeof node;
+}
+
+export function serializeProvider(types: any) {
   return {
     serialize: provider('serialize'),
     deserialize: provider('deserialize'),
   };
 
-  function provider(key) {
-    return context => {
+  function provider(key: any) {
+    return (context: any) => {
       const type = getType(context);
       const typeDef = types[type];
-      const fn = get(typeDef, key) || identity;
+      const fn: any = get(typeDef, key) || identity;
       return fn(context);
     };
   }

src/plugins/data/common/expressions/types/arguments.ts

@@ -0,0 +1,142 @@
+/*
+ * Licensed to Elasticsearch B.V. under one or more contributor
+ * license agreements. See the NOTICE file distributed with
+ * this work for additional information regarding copyright
+ * ownership. Elasticsearch B.V. licenses this file to you under
+ * the Apache License, Version 2.0 (the "License"); you may
+ * not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *    http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+import { KnownTypeToString, TypeString, UnmappedTypeStrings } from './common';
+
+/**
+ * This type represents all of the possible combinations of properties of an
+ * Argument in an Expression Function. The presence or absence of certain fields
+ * influence the shape and presence of others within each `arg` in the specification.
+ */
+export type ArgumentType<T> =
+  | SingleArgumentType<T>
+  | MultipleArgumentType<T>
+  | UnresolvedSingleArgumentType<T>
+  | UnresolvedMultipleArgumentType<T>;
+
+/**
+ * Map the type within the the generic array to a string-based
+ * representation of the type.
+ */
+// prettier-ignore
+type ArrayTypeToArgumentString<T> = 
+  T extends Array<infer ElementType> ? TypeString<ElementType> : 
+  T extends null ? 'null' : 
+  never;
+
+/**
+ * Map the return type of the function within the generic to a
+ * string-based representation of the return type.
+ */
+// prettier-ignore
+type UnresolvedTypeToArgumentString<T> = 
+  T extends (...args: any) => infer ElementType ? TypeString<ElementType> : 
+  T extends null ? 'null' : 
+  never;
+
+/**
+ * Map the array-based return type of the function within the generic to a
+ * string-based representation of the return type.
+ */
+// prettier-ignore
+type UnresolvedArrayTypeToArgumentString<T> = 
+  T extends Array<(...args: any) => infer ElementType> ? TypeString<ElementType> :
+  T extends (...args: any) => infer ElementType ? ArrayTypeToArgumentString<ElementType> : 
+  T extends null ? 'null' : 
+  never;
+
+/** A type containing properties common to all Function Arguments. */
+interface BaseArgumentType<T> {
+  /** Alternate names for the Function valid for use in the Expression Editor */
+  aliases?: string[];
+  /** Help text for the Argument to be displayed in the Expression Editor */
+  help: string;
+  /** Default options for the Argument */
+  options?: T[];
+  /**
+   * Is this Argument required?
+   * @default false
+   */
+  required?: boolean;
+  /**
+   * If false, the Argument is supplied as a function to be invoked in the
+   * implementation, rather than a value.
+   * @default true
+   */
+  resolve?: boolean;
+  /** Names of types that are valid values of the Argument. */
+  types?: string[];
+  /** The optional default value of the Argument. */
+  default?: T | string;
+  /**
+   * If true, multiple values may be supplied to the Argument.
+   * @default false
+   */
+  multi?: boolean;
+}
+
+/**
+ * The `types` array in a `FunctionSpec` should contain string
+ * representations of the `ArgumentsSpec` types:
+ *
+ * `someArgument: boolean | string` results in `types: ['boolean', 'string']`
+ */
+type SingleArgumentType<T> = BaseArgumentType<T> & {
+  multi?: false;
+  resolve?: true;
+  types?: Array<KnownTypeToString<T> | UnmappedTypeStrings>;
+};
+
+/**
+ * If the `multi` property on the argument is true, the `types` array should
+ * contain string representations of the `ArgumentsSpec` array types:
+ *
+ * `someArgument: boolean[] | string[]` results in: `types: ['boolean', 'string']`
+ */
+type MultipleArgumentType<T> = BaseArgumentType<T> & {
+  multi: true;
+  resolve?: true;
+  types?: Array<ArrayTypeToArgumentString<T> | UnmappedTypeStrings>;
+};
+
+/**
+ * If the `resolve` property on the arugument is false, the `types` array, if
+ * present, should contain string representations of the result of the argument
+ * function:
+ *
+ * `someArgument: () => string` results in `types: ['string']`
+ */
+type UnresolvedSingleArgumentType<T> = BaseArgumentType<T> & {
+  multi?: false;
+  resolve: false;
+  types?: Array<UnresolvedTypeToArgumentString<T> | UnmappedTypeStrings>;
+};
+
+/**
+ * If the `resolve` property on the arugument is false, the `types` array, if
+ * present, should contain string representations of the result of the argument
+ * function:
+ *
+ * `someArgument: () => string[]` results in `types: ['string']`
+ */
+type UnresolvedMultipleArgumentType<T> = BaseArgumentType<T> & {
+  multi: true;
+  resolve: false;
+  types?: Array<UnresolvedArrayTypeToArgumentString<T> | UnmappedTypeStrings>;
+};

src/plugins/data/common/expressions/types/common.ts

@@ -0,0 +1,60 @@
+/*
+ * Licensed to Elasticsearch B.V. under one or more contributor
+ * license agreements. See the NOTICE file distributed with
+ * this work for additional information regarding copyright
+ * ownership. Elasticsearch B.V. licenses this file to you under
+ * the Apache License, Version 2.0 (the "License"); you may
+ * not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *    http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+/**
+ * This can convert a type into a known Expression string representation of
+ * that type. For example, `TypeToString<Datatable>` will resolve to `'datatable'`.
+ * This allows Expression Functions to continue to specify their type in a
+ * simple string format.
+ */
+export type TypeToString<T> = KnownTypeToString<T> | UnmappedTypeStrings;
+
+/**
+ * Map the type of the generic to a string-based representation of the type.
+ *
+ * If the provided generic is its own type interface, we use the value of
+ * the `type` key as a string literal type for it.
+ */
+// prettier-ignore
+export type KnownTypeToString<T> = 
+  T extends string ? 'string' : 
+  T extends boolean ? 'boolean' : 
+  T extends number ? 'number' :
+  T extends null ? 'null' :
+  T extends { type: string } ? T['type'] :
+  never;
+
+/**
+ * If the type extends a Promise, we still need to return the string representation:
+ *
+ * `someArgument: Promise<boolean | string>` results in `types: ['boolean', 'string']`
+ */
+export type TypeString<T> = KnownTypeToString<UnwrapPromise<T>>;
+
+/**
+ * Types used in Expressions that don't map to a primitive cleanly:
+ *
+ * `date` is typed as a number or string, and represents a date
+ */
+export type UnmappedTypeStrings = 'date' | 'filter';
+
+/**
+ * Utility type: extracts returned type from a Promise.
+ */
+export type UnwrapPromise<T> = T extends Promise<infer P> ? P : T;

src/plugins/data/common/expressions/types/functions.ts

@@ -0,0 +1,47 @@
+/*
+ * Licensed to Elasticsearch B.V. under one or more contributor
+ * license agreements. See the NOTICE file distributed with
+ * this work for additional information regarding copyright
+ * ownership. Elasticsearch B.V. licenses this file to you under
+ * the Apache License, Version 2.0 (the "License"); you may
+ * not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *    http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+import { ArgumentType } from './arguments';
+import { TypeToString, UnwrapPromise } from './common';
+
+/**
+ * A generic type which represents an Expression Function definition.
+ */
+export interface ExpressionFunction<Name extends string, Context, Arguments, Return> {
+  /** Arguments for the Function */
+  args: { [key in keyof Arguments]: ArgumentType<Arguments[key]> };
+  aliases?: string[];
+  context?: {
+    types: Array<TypeToString<Context>>;
+  };
+  /** Help text displayed in the Expression editor */
+  help: string;
+  /** The name of the Function */
+  name: Name;
+  /** The type of the Function */
+  type?: TypeToString<UnwrapPromise<Return>>;
+  /** The implementation of the Function */
+  fn(context: Context, args: Arguments, handlers: FunctionHandlers): Return;
+}
+
+// TODO: Handlers can be passed to the `fn` property of the Function.  At the moment, these Functions
+// are not strongly defined.
+interface FunctionHandlers {
+  [key: string]: (...args: any) => any;
+}

src/plugins/data/common/expressions/types/index.ts

@@ -0,0 +1,45 @@
+/*
+ * Licensed to Elasticsearch B.V. under one or more contributor
+ * license agreements. See the NOTICE file distributed with
+ * this work for additional information regarding copyright
+ * ownership. Elasticsearch B.V. licenses this file to you under
+ * the Apache License, Version 2.0 (the "License"); you may
+ * not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *    http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+export { ArgumentType } from './arguments';
+export {
+  TypeToString,
+  KnownTypeToString,
+  TypeString,
+  UnmappedTypeStrings,
+  UnwrapPromise,
+} from './common';
+export { ExpressionFunction } from './functions';
+export { ExpressionType } from './types';
+export * from '../expression_types';
+
+export type ExpressionArgAST = string | boolean | number | ExpressionAST;
+
+export interface ExpressionFunctionAST {
+  type: 'function';
+  function: string;
+  arguments: {
+    [key: string]: ExpressionArgAST[];
+  };
+}
+
+export interface ExpressionAST {
+  type: 'expression';
+  chain: ExpressionFunctionAST[];
+}

src/plugins/data/common/expressions/types/types.ts

@@ -0,0 +1,33 @@
+/*
+ * Licensed to Elasticsearch B.V. under one or more contributor
+ * license agreements. See the NOTICE file distributed with
+ * this work for additional information regarding copyright
+ * ownership. Elasticsearch B.V. licenses this file to you under
+ * the Apache License, Version 2.0 (the "License"); you may
+ * not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *    http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+/**
+ * A generic type which represents a custom Expression Type Definition that's
+ * registered to the Interpreter.
+ */
+export interface ExpressionType<Name extends string, Type, SerializedType = undefined> {
+  name: Name;
+  validate?: (type: any) => void | Error;
+  serialize?: (type: Type) => SerializedType;
+  deserialize?: (type: SerializedType) => Type;
+  // TODO: Update typings for the `availableTypes` parameter once interfaces for this
+  // have been added elsewhere in the interpreter.
+  from?: Record<string, (ctx: any, availableTypes: Record<string, any>) => Type>;
+  to?: Record<string, (type: Type, availableTypes: Record<string, any>) => unknown>;
+}

src/plugins/data/common/index.ts

@@ -17,6 +17,4 @@
  * under the License.
  */
 
-import { TypesRegistry } from '../../common/types_registry';
-
-export const typesRegistry = new TypesRegistry();
+export * from './expressions';

src/plugins/data/common/query/types.ts

@@ -17,6 +17,7 @@
  * under the License.
  */
 
-import { FunctionsRegistry } from '../../common/functions_registry';
-
-export const functionsRegistry = new FunctionsRegistry();
+export interface Query {
+  query: string | { [key: string]: any };
+  language: string;
+}

src/plugins/data/kibana.json

@@ -0,0 +1,6 @@
+{
+  "id": "data",
+  "version": "8",
+  "server": true,
+  "ui": true
+}

src/plugins/data/public/expressions/expressions_service.ts

@@ -0,0 +1,48 @@
+/*
+ * Licensed to Elasticsearch B.V. under one or more contributor
+ * license agreements. See the NOTICE file distributed with
+ * this work for additional information regarding copyright
+ * ownership. Elasticsearch B.V. licenses this file to you under
+ * the Apache License, Version 2.0 (the "License"); you may
+ * not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *    http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+import { FunctionsRegistry, RenderFunctionsRegistry, TypesRegistry } from './interpreter';
+import { ExpressionType } from '../../common/expressions/types';
+
+export class ExpressionsService {
+  private readonly functions = new FunctionsRegistry();
+  private readonly renderers = new RenderFunctionsRegistry();
+  private readonly types = new TypesRegistry();
+
+  public setup() {
+    const { functions, renderers, types } = this;
+
+    return {
+      registerFunction: (fn: any) => {
+        this.functions.register(fn);
+      },
+      registerRenderer: (renderer: any) => {
+        this.renderers.register(renderer);
+      },
+      registerType: (type: () => ExpressionType<any, any>) => {
+        this.types.register(type);
+      },
+      __SECRET_INTERNALS_DO_NOT_USE_OR_YOU_WILL_BE_FIRED: {
+        functions,
+        renderers,
+        types,
+      },
+    };
+  }
+}

src/plugins/data/public/expressions/interpreter.ts

@@ -0,0 +1,173 @@
+/*
+ * Licensed to Elasticsearch B.V. under one or more contributor
+ * license agreements. See the NOTICE file distributed with
+ * this work for additional information regarding copyright
+ * ownership. Elasticsearch B.V. licenses this file to you under
+ * the Apache License, Version 2.0 (the "License"); you may
+ * not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *    http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+/**
+ * @todo
+ * This whole file needs major refactoring. `Registry` class does not do anything
+ * useful. "Wrappers" like `RenderFunction` basically just set default props on the objects.
+ */
+
+/* eslint-disable max-classes-per-file */
+import { clone, mapValues, includes } from 'lodash';
+import { Type } from '../../common/expressions/interpreter';
+import { ExpressionType } from '../../common/expressions/types';
+
+export class Registry<ItemSpec, Item> {
+  _prop: string;
+  _indexed: any;
+
+  constructor(prop: string = 'name') {
+    if (typeof prop !== 'string') throw new Error('Registry property name must be a string');
+    this._prop = prop;
+    this._indexed = new Object();
+  }
+
+  wrapper(obj: ItemSpec) {
+    return obj;
+  }
+
+  register(fn: () => ItemSpec) {
+    if (typeof fn !== 'function') throw new Error(`Register requires an function`);
+
+    const obj = fn() as any;
+
+    if (typeof obj !== 'object' || !obj[this._prop]) {
+      throw new Error(`Registered functions must return an object with a ${this._prop} property`);
+    }
+
+    this._indexed[obj[this._prop].toLowerCase()] = this.wrapper(obj);
+  }
+
+  toJS(): Record<string, any> {
+    return Object.keys(this._indexed).reduce(
+      (acc, key) => {
+        acc[key] = this.get(key);
+        return acc;
+      },
+      {} as any
+    );
+  }
+
+  toArray(): Item[] {
+    return Object.keys(this._indexed).map(key => this.get(key)!);
+  }
+
+  get(name: string): Item | null {
+    if (name === undefined) {
+      return null;
+    }
+    const lowerCaseName = name.toLowerCase();
+    return this._indexed[lowerCaseName] ? clone(this._indexed[lowerCaseName]) : null;
+  }
+
+  getProp(): string {
+    return this._prop;
+  }
+
+  reset() {
+    this._indexed = new Object();
+  }
+}
+
+function RenderFunction(this: any, config: any) {
+  // This must match the name of the function that is used to create the `type: render` object
+  this.name = config.name;
+
+  // Use this to set a more friendly name
+  this.displayName = config.displayName || this.name;
+
+  // A sentence or few about what this element does
+  this.help = config.help;
+
+  // used to validate the data before calling the render function
+  this.validate = config.validate || function validate() {};
+
+  // tell the renderer if the dom node should be reused, it's recreated each time by default
+  this.reuseDomNode = Boolean(config.reuseDomNode);
+
+  // the function called to render the data
+  this.render =
+    config.render ||
+    function render(domNode: any, data: any, done: any) {
+      done();
+    };
+}
+
+export function Arg(this: any, config: any) {
+  if (config.name === '_') throw Error('Arg names must not be _. Use it in aliases instead.');
+  this.name = config.name;
+  this.required = config.required || false;
+  this.help = config.help || '';
+  this.types = config.types || [];
+  this.default = config.default;
+  this.aliases = config.aliases || [];
+  this.multi = config.multi == null ? false : config.multi;
+  this.resolve = config.resolve == null ? true : config.resolve;
+  this.options = config.options || [];
+  this.accepts = (type: any) => {
+    if (!this.types.length) return true;
+    return includes(config.types, type);
+  };
+}
+
+export function Fn(this: any, config: any) {
+  // Required
+  this.name = config.name; // Name of function
+
+  // Return type of function.
+  // This SHOULD be supplied. We use it for UI and autocomplete hinting,
+  // We may also use it for optimizations in the future.
+  this.type = config.type;
+  this.aliases = config.aliases || [];
+
+  // Function to run function (context, args)
+  this.fn = (...args: any) => Promise.resolve(config.fn(...args));
+
+  // Optional
+  this.help = config.help || ''; // A short help text
+  this.args = mapValues(
+    config.args || {},
+    (arg: any, name: any) => new (Arg as any)({ name, ...arg })
+  );
+
+  this.context = config.context || {};
+
+  this.accepts = (type: any) => {
+    if (!this.context.types) return true; // If you don't tell us about context, we'll assume you don't care what you get
+    return includes(this.context.types, type); // Otherwise, check it
+  };
+}
+
+export class RenderFunctionsRegistry extends Registry<any, any> {
+  wrapper(obj: any) {
+    return new (RenderFunction as any)(obj);
+  }
+}
+
+export class FunctionsRegistry extends Registry<any, any> {
+  wrapper(obj: any) {
+    return new (Fn as any)(obj);
+  }
+}
+
+export class TypesRegistry extends Registry<ExpressionType<any, any>, any> {
+  wrapper(obj: any) {
+    return new (Type as any)(obj);
+  }
+}

src/plugins/data/public/index.ts

@@ -17,10 +17,11 @@
  * under the License.
  */
 
-import { Fn, Registry } from '@kbn/interpreter/common';
+import { PluginInitializerContext } from '../../../core/public';
+import { DataPublicPlugin } from './plugin';
 
-export class FunctionsRegistry extends Registry {
-  wrapper(obj) {
-    return new Fn(obj);
-  }
+export function plugin(initializerContext: PluginInitializerContext) {
+  return new DataPublicPlugin(initializerContext);
 }
+
+export { DataPublicPlugin as Plugin };

src/plugins/data/public/plugin.ts

@@ -0,0 +1,37 @@
+/*
+ * Licensed to Elasticsearch B.V. under one or more contributor
+ * license agreements. See the NOTICE file distributed with
+ * this work for additional information regarding copyright
+ * ownership. Elasticsearch B.V. licenses this file to you under
+ * the Apache License, Version 2.0 (the "License"); you may
+ * not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *    http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+
+import { PluginInitializerContext, CoreSetup, CoreStart, Plugin } from '../../../core/public';
+import { ExpressionsService } from './expressions/expressions_service';
+
+export class DataPublicPlugin implements Plugin<{}> {
+  expressions = new ExpressionsService();
+
+  constructor(initializerContext: PluginInitializerContext) {}
+
+  public setup(core: CoreSetup) {
+    const expressions = this.expressions.setup();
+    return {
+      expressions,
+    };
+  }
+
+  public start(core: CoreStart) {}
+  public stop() {}
+}

src/plugins/data/server/index.ts

@@ -17,11 +17,11 @@
  * under the License.
  */
 
-import { Registry } from '@kbn/interpreter/common';
-import { Type } from './type';
+import { PluginInitializerContext } from '../../../core/server';
+import { DataServerPlugin } from './plugin';
 
-export class TypesRegistry extends Registry {
-  wrapper(obj) {
-    return new Type(obj);
-  }
+export function plugin(initializerContext: PluginInitializerContext) {
+  return new DataServerPlugin(initializerContext);
 }
+
+export { DataServerPlugin as Plugin };

src/plugins/data/server/plugin.ts

@@ -17,6 +17,13 @@
  * under the License.
  */
 
-import { RenderFunctionsRegistry } from '../lib/render_functions_registry';
+import { PluginInitializerContext, CoreSetup, CoreStart, Plugin } from '../../../core/server';
 
-export const renderersRegistry = new RenderFunctionsRegistry();
+export class DataServerPlugin implements Plugin {
+  constructor(initializerContext: PluginInitializerContext) {}
+  public setup(core: CoreSetup) {}
+  public start(core: CoreStart) {}
+  public stop() {}
+}
+
+export { DataServerPlugin as Plugin };

src/plugins/testbed/public/plugin.ts

@@ -32,6 +32,8 @@ export class TestbedPlugin implements Plugin<TestbedPluginSetup, TestbedPluginSt
     // eslint-disable-next-line no-console
     console.log(`Testbed plugin started`);
   }
+
+  public stop() {}
 }
 
 export type TestbedPluginSetup = ReturnType<TestbedPlugin['setup']>;

test/plugin_functional/plugins/core_plugin_a/public/plugin.tsx

@@ -29,6 +29,7 @@ export class CorePluginAPlugin implements Plugin<CorePluginAPluginSetup, CorePlu
   }
 
   public start() {}
+  public stop() {}
 }
 
 export type CorePluginAPluginSetup = ReturnType<CorePluginAPlugin['setup']>;

test/plugin_functional/plugins/core_plugin_b/public/plugin.tsx

@@ -37,6 +37,7 @@ export class CorePluginBPlugin
   }
 
   public start() {}
+  public stop() {}
 }
 
 export type CorePluginBPluginSetup = ReturnType<CorePluginBPlugin['setup']>;