Add rule @typescript-eslint/array-type

Author: Shinigami92

src/rules/typescript-eslint/array-type.d.ts

@@ -0,0 +1,52 @@
+import type { RuleConfig } from '../rule-config';
+
+/**
+ * Array Option.
+ */
+export type ArrayOption = 'array' | 'generic' | 'array-simple';
+
+/**
+ * Option.
+ */
+export type ArrayTypeOption = {
+  /**
+   * Sets the array type expected for mutable cases.
+   *
+   * @default 'array'
+   *
+   * @see [default](https://github.com/typescript-eslint/typescript-eslint/blob/master/packages/eslint-plugin/docs/rules/array-type.md#options)
+   */
+  default: ArrayOption;
+  /**
+   * Sets the array type expected for readonly arrays. If this is omitted, then the value for default will be used.
+   *
+   * @see [readonly](https://github.com/typescript-eslint/typescript-eslint/blob/master/packages/eslint-plugin/docs/rules/array-type.md#options)
+   */
+  readonly?: ArrayOption;
+};
+
+/**
+ * Options.
+ */
+export type ArrayTypeOptions = [ArrayTypeOption?];
+
+/**
+ * Requires using either `T[]` or `Array<T>` for arrays.
+ *
+ * @see [array-type](https://github.com/typescript-eslint/typescript-eslint/blob/master/packages/eslint-plugin/docs/rules/array-type.md)
+ */
+export type ArrayTypeRuleConfig = RuleConfig<ArrayTypeOptions>;
+
+/**
+ * Requires using either `T[]` or `Array<T>` for arrays.
+ *
+ * @see [array-type](https://github.com/typescript-eslint/typescript-eslint/blob/master/packages/eslint-plugin/docs/rules/array-type.md)
+ */
+export interface ArrayTypeRule {
+  /**
+   * Requires using either `T[]` or `Array<T>` for arrays.
+   *
+   * @see [array-type](https://github.com/typescript-eslint/typescript-eslint/blob/master/packages/eslint-plugin/docs/rules/array-type.md)
+   */
+  '@typescript-eslint/array-type': ArrayTypeRuleConfig;
+}

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

@@ -1,4 +1,5 @@
 import type { AdjacentOverloadSignaturesRule } from './adjacent-overload-signatures';
+import type { ArrayTypeRule } from './array-type';
 import type { BanTsCommentRule } from './ban-ts-comment';
 import type { ExplicitFunctionReturnTypeRule } from './explicit-function-return-type';
 import type { InterfaceNamePrefixRule } from './interface-name-prefix';
@@ -18,6 +19,7 @@ import type { TypedefRule } from './typedef';
  * All @typescript-eslint rules.
  */
 export type TypeScriptEslintRules = AdjacentOverloadSignaturesRule &
+  ArrayTypeRule &
   BanTsCommentRule &
   ExplicitFunctionReturnTypeRule &
   InterfaceNamePrefixRule &