Make sure IIndexPattern doesn't allow arbitrary properties.

src/legacy/core_plugins/kibana/public/management/sections/index_patterns/edit_index_pattern/indexed_fields_table/indexed_fields_table.test.tsx

@@ -19,7 +19,7 @@
 
 import React from 'react';
 import { shallow } from 'enzyme';
-import { IndexPatternField, IIndexPattern } from '../../../../../../../../../plugins/data/public';
+import { IndexPatternField, IndexPattern } from '../../../../../../../../../plugins/data/public';
 import { IndexedFieldsTable } from './indexed_fields_table';
 
 jest.mock('@elastic/eui', () => ({
@@ -54,7 +54,7 @@ const fields = [
 
 const indexPattern = ({
   getNonScriptedFields: () => fields,
-} as unknown) as IIndexPattern;
+} as unknown) as IndexPattern;
 
 describe('IndexedFieldsTable', () => {
   test('should render normally', async () => {

src/legacy/core_plugins/kibana/public/management/sections/index_patterns/edit_index_pattern/indexed_fields_table/indexed_fields_table.tsx

@@ -19,19 +19,19 @@
 
 import React, { Component } from 'react';
 import { createSelector } from 'reselect';
-import { IndexPatternField, IIndexPattern } from '../../../../../../../../../plugins/data/public';
+import { IndexPatternField, IndexPattern } from '../../../../../../../../../plugins/data/public';
 import { Table } from './components/table';
 import { getFieldFormat } from './lib';
 import { IndexedFieldItem } from './types';
 
 interface IndexedFieldsTableProps {
   fields: IndexPatternField[];
-  indexPattern: IIndexPattern;
+  indexPattern: IndexPattern;
   fieldFilter?: string;
   indexedFieldTypeFilter?: string;
   helpers: {
     redirectToRoute: (obj: any) => void;
-    getFieldInfo: (indexPattern: IIndexPattern, field: string) => string[];
+    getFieldInfo: (indexPattern: IndexPattern, field: string) => string[];
   };
   fieldWildcardMatcher: (filters: any[]) => (val: any) => boolean;
 }

src/legacy/core_plugins/kibana/public/management/sections/index_patterns/edit_index_pattern/scripted_fields_table/components/confirmation_modal/confirmation_modal.test.tsx

@@ -26,7 +26,7 @@ describe('DeleteScritpedFieldConfirmationModal', () => {
   test('should render normally', () => {
     const component = shallow(
       <DeleteScritpedFieldConfirmationModal
-        field={{ name: '', script: '', lang: '' }}
+        field={{ name: '', script: '', lang: '', type: '' }}
         deleteField={() => {}}
         hideDeleteConfirmationModal={() => {}}
       />

src/legacy/core_plugins/kibana/public/management/sections/index_patterns/edit_index_pattern/scripted_fields_table/components/table/table.test.tsx

@@ -26,7 +26,7 @@ import { IIndexPattern } from '../../../../../../../../../../../plugins/data/pub
 
 const getIndexPatternMock = (mockedFields: any = {}) => ({ ...mockedFields } as IIndexPattern);
 
-const items: ScriptedFieldItem[] = [{ name: '1', lang: 'Elastic', script: '' }];
+const items: ScriptedFieldItem[] = [{ name: '1', lang: 'Elastic', script: '', type: '' }];
 
 describe('Table', () => {
   let indexPattern: IIndexPattern;

src/legacy/core_plugins/kibana/public/management/sections/index_patterns/edit_index_pattern/scripted_fields_table/components/table/table.tsx

@@ -22,14 +22,13 @@ import { get } from 'lodash';
 import { i18n } from '@kbn/i18n';
 import { EuiInMemoryTable, EuiBasicTableColumn } from '@elastic/eui';
 
-import { ScriptedFieldItem } from '../../types';
-import { IIndexPattern } from '../../../../../../../../../../../plugins/data/public';
+import { IIndexPattern, IFieldType } from '../../../../../../../../../../../plugins/data/public';
 
 interface TableProps {
   indexPattern: IIndexPattern;
-  items: ScriptedFieldItem[];
-  editField: (field: ScriptedFieldItem) => void;
-  deleteField: (field: ScriptedFieldItem) => void;
+  items: IFieldType[];
+  editField: (field: IFieldType) => void;
+  deleteField: (field: IFieldType) => void;
 }
 
 export class Table extends PureComponent<TableProps> {
@@ -43,7 +42,7 @@ export class Table extends PureComponent<TableProps> {
   render() {
     const { items, editField, deleteField } = this.props;
 
-    const columns: Array<EuiBasicTableColumn<ScriptedFieldItem>> = [
+    const columns: Array<EuiBasicTableColumn<IFieldType>> = [
       {
         field: 'displayName',
         name: i18n.translate('kbn.management.editIndexPattern.scripted.table.nameHeader', {

src/legacy/core_plugins/kibana/public/management/sections/index_patterns/edit_index_pattern/scripted_fields_table/scripted_field_table.test.tsx

@@ -21,7 +21,7 @@ import React from 'react';
 import { shallow } from 'enzyme';
 
 import { ScriptedFieldsTable } from '../scripted_fields_table';
-import { IIndexPattern } from '../../../../../../../../../plugins/data/common/index_patterns';
+import { IndexPattern } from '../../../../../../../../../plugins/data/public';
 
 jest.mock('@elastic/eui', () => ({
   EuiTitle: 'eui-title',
@@ -64,10 +64,10 @@ const helpers = {
   getRouteHref: () => '#',
 };
 
-const getIndexPatternMock = (mockedFields: any = {}) => ({ ...mockedFields } as IIndexPattern);
+const getIndexPatternMock = (mockedFields: any = {}) => ({ ...mockedFields } as IndexPattern);
 
 describe('ScriptedFieldsTable', () => {
-  let indexPattern: IIndexPattern;
+  let indexPattern: IndexPattern;
 
   beforeEach(() => {
     indexPattern = getIndexPatternMock({
@@ -156,7 +156,9 @@ describe('ScriptedFieldsTable', () => {
     );
 
     await component.update(); // Fire `componentWillMount()`
-    component.instance().startDeleteField({ name: 'ScriptedField', lang: '', script: '' });
+    component
+      .instance()
+      .startDeleteField({ name: 'ScriptedField', lang: '', script: '', type: '' });
     await component.update();
 
     // Ensure the modal is visible
@@ -165,18 +167,15 @@ describe('ScriptedFieldsTable', () => {
 
   test('should delete a field', async () => {
     const removeScriptedField = jest.fn();
+    const pattern = ({ ...indexPattern, removeScriptedField } as unknown) as IndexPattern;
     const component = shallow<ScriptedFieldsTable>(
-      <ScriptedFieldsTable
-        indexPattern={{
-          ...indexPattern,
-          removeScriptedField,
-        }}
-        helpers={helpers}
-      />
+      <ScriptedFieldsTable indexPattern={pattern} helpers={helpers} />
     );
 
     await component.update(); // Fire `componentWillMount()`
-    component.instance().startDeleteField({ name: 'ScriptedField', lang: '', script: '' });
+    component
+      .instance()
+      .startDeleteField({ name: 'ScriptedField', lang: '', script: '', type: '' });
 
     await component.update();
     await component.instance().deleteField();

src/legacy/core_plugins/kibana/public/management/sections/index_patterns/edit_index_pattern/scripted_fields_table/scripted_fields_table.tsx

@@ -29,10 +29,10 @@ import { EuiSpacer } from '@elastic/eui';
 import { Table, Header, CallOuts, DeleteScritpedFieldConfirmationModal } from './components';
 import { ScriptedFieldItem } from './types';
 
-import { IIndexPattern } from '../../../../../../../../../plugins/data/public';
+import { IndexPattern } from '../../../../../../../../../plugins/data/public';
 
 interface ScriptedFieldsTableProps {
-  indexPattern: IIndexPattern;
+  indexPattern: IndexPattern;
   fieldFilter?: string;
   scriptedFieldLanguageFilter?: string;
   helpers: {
@@ -76,8 +76,8 @@ export class ScriptedFieldsTable extends Component<
     const supportedLangs = getSupportedScriptingLanguages();
 
     for (const field of fields) {
-      const lang: string = field.lang;
-      if (deprecatedLangs.includes(lang) || !supportedLangs.includes(lang)) {
+      const lang = field.lang;
+      if (lang && (deprecatedLangs.includes(lang) || !supportedLangs.includes(lang))) {
         deprecatedLangsInUse.push(lang);
       }
     }
@@ -125,7 +125,9 @@ export class ScriptedFieldsTable extends Component<
     const { indexPattern, onRemoveField } = this.props;
     const { fieldToDelete } = this.state;
 
-    indexPattern.removeScriptedField(fieldToDelete);
+    if (fieldToDelete) {
+      indexPattern.removeScriptedField(fieldToDelete);
+    }
 
     if (onRemoveField) {
       onRemoveField();

src/legacy/core_plugins/kibana/public/management/sections/index_patterns/edit_index_pattern/scripted_fields_table/types.ts

@@ -17,9 +17,12 @@
  * under the License.
  */
 
+import { IFieldType } from 'src/plugins/data/public';
+
 /** @internal **/
-export interface ScriptedFieldItem {
-  name: string;
-  lang: string;
-  script: string;
-}
+export type ScriptedFieldItem = IFieldType;
+// export interface ScriptedFieldItem {
+//   name: string;
+//   lang: string;
+//   script: string;
+// }

src/legacy/core_plugins/kibana/public/management/sections/index_patterns/edit_index_pattern/source_filters_table/components/table/table.test.tsx

@@ -22,13 +22,13 @@ import { shallow, ShallowWrapper } from 'enzyme';
 
 import { Table, TableProps, TableState } from './table';
 import { EuiTableFieldDataColumnType, keyCodes } from '@elastic/eui';
-import { IIndexPattern } from '../../../../../../../../../../../plugins/data/public';
+import { IndexPattern } from '../../../../../../../../../../../plugins/data/public';
 import { SourceFiltersTableFilter } from '../../types';
 
-const indexPattern = {} as IIndexPattern;
+const indexPattern = {} as IndexPattern;
 const items: SourceFiltersTableFilter[] = [{ value: 'tim*', clientId: '' }];
 
-const getIndexPatternMock = (mockedFields: any = {}) => ({ ...mockedFields } as IIndexPattern);
+const getIndexPatternMock = (mockedFields: any = {}) => ({ ...mockedFields } as IndexPattern);
 
 const getTableColumnRender = (
   component: ShallowWrapper<TableProps, TableState, Table>,

src/legacy/core_plugins/kibana/public/management/sections/index_patterns/edit_index_pattern/source_filters_table/components/table/table.tsx

@@ -32,7 +32,7 @@ import { i18n } from '@kbn/i18n';
 import { FormattedMessage } from '@kbn/i18n/react';
 import { SourceFiltersTableFilter } from '../../types';
 
-import { IIndexPattern } from '../../../../../../../../../../../plugins/data/public';
+import { IndexPattern } from '../../../../../../../../../../../plugins/data/public';
 
 const filterHeader = i18n.translate('kbn.management.editIndexPattern.source.table.filterHeader', {
   defaultMessage: 'Filter',
@@ -69,7 +69,7 @@ const cancelAria = i18n.translate('kbn.management.editIndexPattern.source.table.
 });
 
 export interface TableProps {
-  indexPattern: IIndexPattern;
+  indexPattern: IndexPattern;
   items: SourceFiltersTableFilter[];
   deleteFilter: Function;
   fieldWildcardMatcher: Function;

src/legacy/core_plugins/kibana/public/management/sections/index_patterns/edit_index_pattern/source_filters_table/source_filters_table.test.tsx

@@ -21,7 +21,7 @@ import React from 'react';
 import { shallow } from 'enzyme';
 
 import { SourceFiltersTable } from './source_filters_table';
-import { IIndexPattern } from '../../../../../../../../../plugins/data/public';
+import { IndexPattern } from '../../../../../../../../../plugins/data/public';
 
 jest.mock('@elastic/eui', () => ({
   EuiButton: 'eui-button',
@@ -52,7 +52,7 @@ const getIndexPatternMock = (mockedFields: any = {}) =>
   ({
     sourceFilters: [{ value: 'time*' }, { value: 'nam*' }, { value: 'age*' }],
     ...mockedFields,
-  } as IIndexPattern);
+  } as IndexPattern);
 
 describe('SourceFiltersTable', () => {
   test('should render normally', () => {

src/legacy/core_plugins/kibana/public/management/sections/index_patterns/edit_index_pattern/source_filters_table/source_filters_table.tsx

@@ -22,11 +22,11 @@ import { createSelector } from 'reselect';
 
 import { EuiSpacer } from '@elastic/eui';
 import { AddFilter, Table, Header, DeleteFilterConfirmationModal } from './components';
-import { IIndexPattern } from '../../../../../../../../../plugins/data/public';
+import { IndexPattern } from '../../../../../../../../../plugins/data/public';
 import { SourceFiltersTableFilter } from './types';
 
 export interface SourceFiltersTableProps {
-  indexPattern: IIndexPattern;
+  indexPattern: IndexPattern;
   filterFilter: string;
   fieldWildcardMatcher: Function;
   onAddOrRemoveFilter?: Function;

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

@@ -20,7 +20,10 @@
 import { IFieldType } from './fields';
 
 export interface IIndexPattern {
-  [key: string]: any;
+  // TODO: IIndexPattern shouldn't include attributes.
+  // We need a dedicated type for index patterns inside a saved object
+  // as described in https://github.com/elastic/kibana/issues/54894
+  attributes: any;
   fields: IFieldType[];
   title: string;
   id?: string;

src/plugins/data/public/index_patterns/index_patterns/_pattern_cache.ts

@@ -19,13 +19,15 @@
 
 import { IndexPattern } from './index_pattern';
 
-interface PatternCache {
+/** @internal */
+export interface PatternCache {
   get: (id: string) => IndexPattern;
   set: (id: string, value: IndexPattern) => IndexPattern;
   clear: (id: string) => void;
   clearAll: () => void;
 }
 
+/** @internal */
 export function createIndexPatternCache(): PatternCache {
   const vals: Record<string, any> = {};
   const cache: PatternCache = {

src/plugins/data/public/index_patterns/index_patterns/index_pattern.test.ts

@@ -104,7 +104,7 @@ function create(id: string, payload?: any): Promise<IndexPattern> {
     (cfg: any) => config.get(cfg),
     savedObjectsClient as any,
     apiClient,
-    patternCache
+    patternCache as any
   );
 
   setDocsourcePayload(id, payload);
@@ -374,7 +374,7 @@ describe('IndexPattern', () => {
       (cfg: any) => config.get(cfg),
       savedObjectsClient as any,
       apiClient,
-      patternCache
+      patternCache as any
     );
     await pattern.init();
 
@@ -386,7 +386,7 @@ describe('IndexPattern', () => {
       (cfg: any) => config.get(cfg),
       savedObjectsClient as any,
       apiClient,
-      patternCache
+      patternCache as any
     );
     await samePattern.init();