[@types/vuelidate] Add return for async rule (#36159)

* Add return for async rule

* Add missing validation properties

* Remove useless property

* Strict type of custom rules

types/vuelidate/index.d.ts

@@ -2,6 +2,7 @@
 // Project: https://github.com/monterail/vuelidate
 // Definitions by: Jan Esser <https://github.com/janesser>
 //                 Jubair Saidi <https://github.com/jubairsaidi>
+//                 Orblazer <https://github.com/orblazer>
 // Definitions: https://github.com/DefinitelyTyped/DefinitelyTyped
 // TypeScript Version: 2.4
 

types/vuelidate/lib/validators.d.ts

@@ -18,7 +18,7 @@ export interface ValidationRule {
     $pending(): boolean
 }
 
-export type CustomRule = (value: any, parentVm?: any) => boolean
+export type CustomRule = (value: any, parentVm?: any) => boolean | Promise<boolean>
 
 export interface Helpers {
     withParams(params: Params, rule: CustomRule | ValidationRule): ValidationRule

types/vuelidate/vuelidate-tests.ts

@@ -1,5 +1,5 @@
 import { Validation } from 'vuelidate'
-import { required, integer, decimal,  minLength, sameAs, helpers } from 'vuelidate/lib/validators'
+import { required, integer, decimal,  minLength, sameAs, helpers, CustomRule } from 'vuelidate/lib/validators'
 
 import Vue, { ComponentOptions } from 'vue'
 
@@ -10,11 +10,11 @@ function Component(options: ComponentOptions<Vue> | VueClass<Vue>): any {
     return null; // mocked
 }
 
-const mustBeCool = (value: string) => value.indexOf('cool') >= 0
+const mustBeCool: CustomRule = (value: string) => value.indexOf('cool') >= 0
 
-const mustBeCool2 = (value: string) => !helpers.req(value) || value.indexOf('cool') >= 0
+const mustBeCool2: CustomRule = (value: string) => !helpers.req(value) || value.indexOf('cool') >= 0
 
-const contains = (param: string) =>
+const contains = (param: string): CustomRule =>
     (value: string) => !helpers.req(value) || value.indexOf(param) >= 0
 
 const mustBeCool3 = helpers.withParams(

types/vuelidate/vuelidate.d.ts

@@ -10,13 +10,15 @@ export const validationMixin: any
 
 // const Validation
 export interface Validation extends Vue {
+    $model: any
     // const validationGetters
     readonly $invalid: boolean
     readonly $dirty: boolean
+    readonly $anyDirty: boolean
     readonly $error: boolean
+    readonly $anyError: boolean
     readonly $pending: boolean
     readonly $params: { [attr: string]: any }
-    $model: any
 
     // const validationMethods
     $touch(): never