Add rule @typescript-eslint/typedef

Author: Shinigami92

src/rules/typescript-eslint/index.d.ts

@@ -11,6 +11,7 @@ import type { PreferNullishCoalescingRule } from './prefer-nullish-coalescing';
 import type { PreferOptionalChainRule } from './prefer-optional-chain';
 import type { PreferReadonlyRule } from './prefer-readonly';
 import type { RestrictTemplateExpressionsRule } from './restrict-template-expressions';
+import type { TypedefRule } from './typedef';
 
 /**
  * All @typescript-eslint rules.
@@ -27,4 +28,5 @@ export type TypeScriptEslintRules = BanTsCommentRule &
   PreferNullishCoalescingRule &
   PreferOptionalChainRule &
   PreferReadonlyRule &
-  RestrictTemplateExpressionsRule;
+  RestrictTemplateExpressionsRule &
+  TypedefRule;

src/rules/typescript-eslint/typedef.d.ts

@@ -0,0 +1,97 @@
+import type { RuleConfig } from '../rule-config';
+
+/**
+ * Option.
+ */
+export type TypedefOption = {
+  /**
+   * Whether to enforce type annotations on variables declared using array destructuring.
+   *
+   * @default false
+   *
+   * @see [arrayDestructuring](https://github.com/typescript-eslint/typescript-eslint/blob/master/packages/eslint-plugin/docs/rules/typedef.md#arraydestructuring)
+   */
+  arrayDestructuring?: boolean;
+  /**
+   * Whether to enforce type annotations for parameters of arrow functions.
+   *
+   * @default false
+   *
+   * @see [arrowParameter](https://github.com/typescript-eslint/typescript-eslint/blob/master/packages/eslint-plugin/docs/rules/typedef.md#arrowparameter)
+   */
+  arrowParameter?: boolean;
+  /**
+   * Whether to enforce type annotations on member variables of classes.
+   *
+   * @default false
+   *
+   * @see [memberVariableDeclaration](https://github.com/typescript-eslint/typescript-eslint/blob/master/packages/eslint-plugin/docs/rules/typedef.md#membervariabledeclaration)
+   */
+  memberVariableDeclaration?: boolean;
+  /**
+   * Whether to enforce type annotations on variables declared using object destructuring.
+   *
+   * @default false
+   *
+   * @see [objectDestructuring](https://github.com/typescript-eslint/typescript-eslint/blob/master/packages/eslint-plugin/docs/rules/typedef.md#objectdestructuring)
+   */
+  objectDestructuring?: boolean;
+  /**
+   * Whether to enforce type annotations for parameters of functions and methods.
+   *
+   * @default false
+   *
+   * @see [parameter](https://github.com/typescript-eslint/typescript-eslint/blob/master/packages/eslint-plugin/docs/rules/typedef.md#parameter)
+   */
+  parameter?: boolean;
+  /**
+   * Whether to enforce type annotations for properties of interfaces and types.
+   *
+   * @default false
+   *
+   * @see [propertyDeclaration](https://github.com/typescript-eslint/typescript-eslint/blob/master/packages/eslint-plugin/docs/rules/typedef.md#propertydeclaration)
+   */
+  propertyDeclaration?: boolean;
+  /**
+   * Whether to enforce type annotations for variable declarations, excluding array and object destructuring.
+   *
+   * @default false
+   *
+   * @see [variableDeclaration](https://github.com/typescript-eslint/typescript-eslint/blob/master/packages/eslint-plugin/docs/rules/typedef.md#variabledeclaration)
+   */
+  variableDeclaration?: boolean;
+  /**
+   * Ignore variable declarations for non-arrow and arrow functions.
+   *
+   * @default false
+   *
+   * @see [variableDeclarationIgnoreFunction](https://github.com/typescript-eslint/typescript-eslint/blob/master/packages/eslint-plugin/docs/rules/typedef.md#variabledeclarationignorefunction)
+   */
+  variableDeclarationIgnoreFunction?: boolean;
+};
+
+/**
+ * Options.
+ */
+export type TypedefOptions = [TypedefOption?];
+
+/**
+ * Requires type annotations to exist.
+ *
+ * @see [typedef](https://github.com/typescript-eslint/typescript-eslint/blob/master/packages/eslint-plugin/docs/rules/typedef.md)
+ */
+export type TypedefRuleConfig = RuleConfig<TypedefOptions>;
+
+/**
+ * Requires type annotations to exist.
+ *
+ * @see [typedef](https://github.com/typescript-eslint/typescript-eslint/blob/master/packages/eslint-plugin/docs/rules/typedef.md)
+ */
+export interface TypedefRule {
+  /**
+   * Requires type annotations to exist.
+   *
+   * @see [typedef](https://github.com/typescript-eslint/typescript-eslint/blob/master/packages/eslint-plugin/docs/rules/typedef.md)
+   */
+  '@typescript-eslint/typedef': TypedefRuleConfig;
+}