Validation: refactor and improve typing

packages/devextreme/js/__internal/integration/knockout/validation.ts

@@ -4,7 +4,7 @@ import { Guid } from '@ts/core/m_guid';
 import { Deferred } from '@ts/core/utils/m_deferred';
 import { extend } from '@ts/core/utils/m_extend';
 import { each, map } from '@ts/core/utils/m_iterator';
-import ValidationEngine from '@ts/ui/m_validation_engine';
+import ValidationEngine from '@ts/ui/validation_engine';
 // eslint-disable-next-line import/no-extraneous-dependencies
 import ko from 'knockout';
 
@@ -50,19 +50,17 @@ if (ko) {
     validate() {
       const currentResult = this._validationInfo?.result;
       const value = this.target();
-      if (currentResult
-        && currentResult.status === VALIDATION_STATUS_PENDING
+      if (currentResult?.status === VALIDATION_STATUS_PENDING
         && currentResult.value === value
       ) {
         // eslint-disable-next-line @typescript-eslint/no-unsafe-return
         return extend({}, currentResult);
       }
       const result = ValidationEngine.validate(value, this.validationRules, this.name);
-      // @ts-expect-error
       result.id = new Guid().toString();
       this._applyValidationResult(result);
-      // @ts-expect-error
-      result.complete?.then((res) => {
+      // eslint-disable-next-line @typescript-eslint/no-floating-promises
+      result?.complete?.then((res) => {
         if (res.id === this._validationInfo.result.id) {
           this._applyValidationResult(res);
         }

packages/devextreme/js/__internal/ui/form/components/field_item.ts

@@ -18,7 +18,7 @@ import {
 import type Form from '@ts/ui/form/form';
 import type LayoutManager from '@ts/ui/form/form.layout_manager';
 import type { FieldItemOptions } from '@ts/ui/form/form.layout_manager.utils';
-import Validator from '@ts/ui/m_validator';
+import Validator from '@ts/ui/validator';
 
 export const FLEX_LAYOUT_CLASS = 'dx-flex-layout';
 export const FIELD_ITEM_OPTIONAL_CLASS = 'dx-field-item-optional';

packages/devextreme/js/__internal/ui/form/form.ts

@@ -103,14 +103,14 @@ import {
 } from '@ts/ui/form/form.utils';
 import type { LoadPanelProperties } from '@ts/ui/load_panel';
 import LoadPanel from '@ts/ui/load_panel';
-import ValidationEngine from '@ts/ui/m_validation_engine';
-import ValidationSummary from '@ts/ui/m_validation_summary';
 import type { ScreenSizeQualifier } from '@ts/ui/responsive_box';
 import Scrollable from '@ts/ui/scroll_view/scrollable';
 import type { TabPanelProperties } from '@ts/ui/tab_panel/tab_panel';
 import TabPanel from '@ts/ui/tab_panel/tab_panel';
 import { TEXTEDITOR_CLASS, TEXTEDITOR_INPUT_CLASS } from '@ts/ui/text_box/text_editor.base';
 import { TOOLBAR_CLASS } from '@ts/ui/toolbar/constants';
+import ValidationEngine from '@ts/ui/validation_engine';
+import ValidationSummary from '@ts/ui/validation_summary';
 
 export type FormAICommandName = 'smartPaste';
 export interface AICommandParamsMap {