typescript-eslint · JoshuaKGoldberg · May 9, 2024 · Apr 28, 2024 · Apr 29, 2024 · Apr 29, 2024
diff --git a/docs/developers/Custom_Rules.mdx b/docs/developers/Custom_Rules.mdx
@@ -99,6 +99,32 @@ export const rule = createRule<Options, MessageIds>({
 });
 ```
 
+#### Extra Rule Docs Types
+
+By default, rule `meta.docs` is allowed to contain only `description` and `url` as described in [ESLint's Custom Rules > Rule Structure docs](https://eslint.org/docs/latest/extend/custom-rules#rule-structure).
+Additional docs properties may be added as a type argument to `ESLintUtils.RuleCreator`:
+
+```ts
+interface MyPluginDocs {
+  recommended: boolean;
+}
+
+const createRule = ESLintUtils.RuleCreator<MyPluginDocs>(
+  name => `https://example.com/rule/${name}`,
+);
+
+createRule({
+  // ...
+  meta: {
+    docs: {
+      description: '...',
+      recommended: true,
+    },
+    // ...
+  },
+});
+```
+
 ### Undocumented Rules
 
 Although it is generally not recommended to create custom rules without documentation, if you are sure you want to do this you can use the `ESLintUtils.RuleCreator.withoutDocs` function to directly create a rule.

diff --git a/packages/eslint-plugin-internal/src/rules/no-poorly-typed-ts-props.ts b/packages/eslint-plugin-internal/src/rules/no-poorly-typed-ts-props.ts
@@ -31,7 +31,6 @@ export default createRule({
     docs: {
       description:
         "Enforce that rules don't use TS API properties with known bad type definitions",
-      recommended: 'recommended',
       requiresTypeChecking: true,
     },
     fixable: 'code',

diff --git a/packages/eslint-plugin-internal/src/rules/no-relative-paths-to-internal-packages.ts b/packages/eslint-plugin-internal/src/rules/no-relative-paths-to-internal-packages.ts
@@ -10,7 +10,6 @@ export default createRule({
   meta: {
     type: 'problem',
     docs: {
-      recommended: 'recommended',
       description: 'Disallow relative paths to internal packages',
     },
     messages: {

diff --git a/packages/eslint-plugin-internal/src/rules/no-typescript-default-import.ts b/packages/eslint-plugin-internal/src/rules/no-typescript-default-import.ts
@@ -21,7 +21,6 @@ export default createRule({
     docs: {
       description:
         "Enforce that packages rules don't do `import ts from 'typescript';`",
-      recommended: 'recommended',
     },
     fixable: 'code',
     schema: [],

diff --git a/packages/eslint-plugin-internal/src/rules/no-typescript-estree-import.ts b/packages/eslint-plugin-internal/src/rules/no-typescript-estree-import.ts
@@ -16,7 +16,6 @@ export default createRule({
     type: 'problem',
     docs: {
       description: `Enforce that eslint-plugin rules don't require anything from ${TSESTREE_NAME} or ${TYPES_NAME}`,
-      recommended: 'recommended',
     },
     fixable: 'code',
     schema: [],

diff --git a/packages/eslint-plugin-internal/src/rules/plugin-test-formatting.ts b/packages/eslint-plugin-internal/src/rules/plugin-test-formatting.ts
@@ -109,7 +109,6 @@ export default createRule<Options, MessageIds>({
     type: 'problem',
     docs: {
       description: `Enforce that eslint-plugin test snippets are correctly formatted`,
-      recommended: 'recommended',
       requiresTypeChecking: true,
     },
     fixable: 'code',

diff --git a/packages/eslint-plugin-internal/src/rules/prefer-ast-types-enum.ts b/packages/eslint-plugin-internal/src/rules/prefer-ast-types-enum.ts
@@ -13,7 +13,6 @@ export default createRule({
   meta: {
     type: 'problem',
     docs: {
-      recommended: 'recommended',
       description:
         'Enforce consistent usage of `AST_NODE_TYPES`, `AST_TOKEN_TYPES` and `DefinitionType` enums',
     },

diff --git a/packages/eslint-plugin-internal/src/util/createRule.ts b/packages/eslint-plugin-internal/src/util/createRule.ts
@@ -4,7 +4,11 @@ import { ESLintUtils } from '@typescript-eslint/utils';
 // eslint-disable-next-line @typescript-eslint/no-unsafe-assignment
 const { version }: { version: string } = require('../../package.json');
 
-const createRule = ESLintUtils.RuleCreator(
+export interface ESLintPluginInternalDocs {
+  requiresTypeChecking?: true;
+}
+
+const createRule = ESLintUtils.RuleCreator<ESLintPluginInternalDocs>(
   name =>
     `https://github.com/typescript-eslint/typescript-eslint/blob/v${version}/packages/eslint-plugin-internal/src/rules/${name}.ts`,
 );

diff --git a/packages/eslint-plugin/rules.d.ts b/packages/eslint-plugin/rules.d.ts
@@ -35,11 +35,15 @@ This is likely not portable. A type annotation is necessary. ts(2742)
 ```
 */
 
-import type { RuleModule } from '@typescript-eslint/utils/ts-eslint';
+import type { RuleModuleWithMetaDocs } from '@typescript-eslint/utils/ts-eslint';
+
+import type { ESLintPluginDocs, ESLintPluginRuleModule } from './src/util';
+
+export { ESLintPluginDocs, ESLintPluginRuleModule };
 
 export type TypeScriptESLintRules = Record<
   string,
-  RuleModule<string, unknown[]>
+  RuleModuleWithMetaDocs<string, unknown[], ESLintPluginDocs>
 >;
 declare const rules: TypeScriptESLintRules;
 // eslint-disable-next-line import/no-default-export

diff --git a/packages/eslint-plugin/src/util/createRule.ts b/packages/eslint-plugin/src/util/createRule.ts
@@ -1,5 +1,37 @@
 import { ESLintUtils } from '@typescript-eslint/utils';
+import type {
+  RuleModuleWithMetaDocs,
+  RuleRecommendation,
+  RuleRecommendationAcrossConfigs,
+} from '@typescript-eslint/utils/ts-eslint';
 
-export const createRule = ESLintUtils.RuleCreator(
+export interface ESLintPluginDocs {
+  /**
+   * Does the rule extend (or is it based off of) an ESLint code rule?
+   * Alternately accepts the name of the base rule, in case the rule has been renamed.
+   * This is only used for documentation purposes.
+   */
+  extendsBaseRule?: boolean | string;
+
+  /**
+   * If a string config name, which starting config this rule is enabled in.
+   * If an object, which settings it has enabled in each of those configs.
+   */
+  recommended?: RuleRecommendation | RuleRecommendationAcrossConfigs<unknown[]>;
+
+  /**
+   * Does the rule require us to create a full TypeScript Program in order for it
+   * to type-check code. This is only used for documentation purposes.
+   */
+  requiresTypeChecking?: boolean;
+}
+
+export const createRule = ESLintUtils.RuleCreator<ESLintPluginDocs>(
   name => `https://typescript-eslint.io/rules/${name}`,
 );
+
+export type ESLintPluginRuleModule = RuleModuleWithMetaDocs<
+  string,
+  readonly unknown[],
+  ESLintPluginDocs
+>;
diff --git a/packages/eslint-plugin/src/util/getFunctionHeadLoc.ts b/packages/eslint-plugin/src/util/getFunctionHeadLoc.ts
@@ -153,8 +153,8 @@ export function getFunctionHeadLoc(
   sourceCode: TSESLint.SourceCode,
 ): TSESTree.SourceLocation {
   const parent = node.parent;
-  let start = null;
-  let end = null;
+  let start: TSESTree.Position | null = null;
+  let end: TSESTree.Position | null = null;
 
   if (
     parent.type === AST_NODE_TYPES.MethodDefinition ||

diff --git a/packages/eslint-plugin/tools/generate-breaking-changes.mts b/packages/eslint-plugin/tools/generate-breaking-changes.mts
@@ -1,13 +1,11 @@
-import type { TypeScriptESLintRules } from '@typescript-eslint/eslint-plugin/use-at-your-own-risk/rules';
-import type { RuleModule } from '@typescript-eslint/utils/ts-eslint';
+import type {
+  ESLintPluginRuleModule,
+  TypeScriptESLintRules,
+} from '@typescript-eslint/eslint-plugin/use-at-your-own-risk/rules';
 import { fetch } from 'cross-fetch';
 // markdown-table is ESM, hence this file needs to be `.mts`
 import { markdownTable } from 'markdown-table';
 
-type RuleModuleWithDocs = RuleModule<string, unknown[]> & {
-  meta: { docs: object };
-};
-
 async function main(): Promise<void> {
   const rulesImport = await import('../src/rules/index.js');
   /*
@@ -18,7 +16,7 @@ async function main(): Promise<void> {
   */
   const rules = rulesImport.default as unknown as Record<
     string,
-    RuleModuleWithDocs
+    ESLintPluginRuleModule
   >;
 
   // Annotate which rules are new since the last version

diff --git a/packages/eslint-plugin/typings/eslint-rules.d.ts b/packages/eslint-plugin/typings/eslint-rules.d.ts
@@ -50,6 +50,7 @@ declare module 'eslint/lib/rules/arrow-parens' {
         requireForBlockBody?: boolean;
       }?,
     ],
+    unknown,
     {
       ArrowFunctionExpression(node: TSESTree.ArrowFunctionExpression): void;
     }
@@ -67,6 +68,7 @@ declare module 'eslint/lib/rules/consistent-return' {
         treatUndefinedAsUnspecified?: boolean;
       }?,
     ],
+    unknown,
     {
       ReturnStatement(node: TSESTree.ReturnStatement): void;
       'FunctionDeclaration:exit'(node: TSESTree.FunctionDeclaration): void;
@@ -92,6 +94,7 @@ declare module 'eslint/lib/rules/camelcase' {
         genericType?: 'always' | 'never';
       },
     ],
+    unknown,
     {
       Identifier(node: TSESTree.Identifier): void;
     }
@@ -107,6 +110,7 @@ declare module 'eslint/lib/rules/max-params' {
       | { max: number; countVoidThis?: boolean }
       | { maximum: number; countVoidThis?: boolean }
     )[],
+    unknown,
     {
       FunctionDeclaration(node: TSESTree.FunctionDeclaration): void;
       FunctionExpression(node: TSESTree.FunctionExpression): void;
@@ -122,6 +126,7 @@ declare module 'eslint/lib/rules/no-dupe-class-members' {
   const rule: TSESLint.RuleModule<
     'unexpected',
     [],
+    unknown,
     {
       Program(): void;
       ClassBody(): void;
@@ -140,6 +145,7 @@ declare module 'eslint/lib/rules/no-dupe-args' {
   const rule: TSESLint.RuleModule<
     'unexpected',
     [],
+    unknown,
     {
       FunctionDeclaration(node: TSESTree.FunctionDeclaration): void;
       FunctionExpression(node: TSESTree.FunctionExpression): void;
@@ -158,6 +164,7 @@ declare module 'eslint/lib/rules/no-empty-function' {
         allow?: string[];
       },
     ],
+    unknown,
     {
       FunctionDeclaration(node: TSESTree.FunctionDeclaration): void;
       FunctionExpression(node: TSESTree.FunctionExpression): void;
@@ -176,6 +183,7 @@ declare module 'eslint/lib/rules/no-implicit-globals' {
     | 'globalVariableLeak'
     | 'redeclarationOfReadonlyGlobal',
     [],
+    unknown,
     {
       Program(node: TSESTree.Program): void;
     }
@@ -189,6 +197,7 @@ declare module 'eslint/lib/rules/no-loop-func' {
   const rule: TSESLint.RuleModule<
     'unsafeRefs',
     [],
+    unknown,
     {
       ArrowFunctionExpression(node: TSESTree.ArrowFunctionExpression): void;
       FunctionExpression(node: TSESTree.FunctionExpression): void;
@@ -215,6 +224,7 @@ declare module 'eslint/lib/rules/no-magic-numbers' {
         ignoreTypeIndexes?: boolean;
       },
     ],
+    unknown,
     {
       Literal(node: TSESTree.Literal): void;
     }
@@ -232,6 +242,7 @@ declare module 'eslint/lib/rules/no-redeclare' {
         builtinGlobals?: boolean;
       }?,
     ],
+    unknown,
     {
       ArrowFunctionExpression(node: TSESTree.ArrowFunctionExpression): void;
     }
@@ -251,6 +262,7 @@ declare module 'eslint/lib/rules/no-restricted-globals' {
           message?: string;
         }
     )[],
+    unknown,
     {
       ArrowFunctionExpression(node: TSESTree.ArrowFunctionExpression): void;
     }
@@ -271,6 +283,7 @@ declare module 'eslint/lib/rules/no-shadow' {
         ignoreOnInitialization?: boolean;
       },
     ],
+    unknown,
     {
       ArrowFunctionExpression(node: TSESTree.ArrowFunctionExpression): void;
     }
@@ -288,6 +301,7 @@ declare module 'eslint/lib/rules/no-undef' {
         typeof?: boolean;
       },
     ],
+    unknown,
     {
       ArrowFunctionExpression(node: TSESTree.ArrowFunctionExpression): void;
     }
@@ -314,6 +328,7 @@ declare module 'eslint/lib/rules/no-unused-vars' {
           destructuredArrayIgnorePattern?: string;
         },
     ],
+    unknown,
     {
       ArrowFunctionExpression(node: TSESTree.ArrowFunctionExpression): void;
     }
@@ -333,6 +348,7 @@ declare module 'eslint/lib/rules/no-unused-expressions' {
         allowTaggedTemplates?: boolean;
       },
     ],
+    unknown,
     {
       ExpressionStatement(node: TSESTree.ExpressionStatement): void;
     }
@@ -353,6 +369,7 @@ declare module 'eslint/lib/rules/no-use-before-define' {
           variables?: boolean;
         }
     )[],
+    unknown,
     {
       ArrowFunctionExpression(node: TSESTree.ArrowFunctionExpression): void;
     }
@@ -375,6 +392,7 @@ declare module 'eslint/lib/rules/strict' {
     | 'unnecessaryInClasses'
     | 'wrap',
     ['function' | 'global' | 'never' | 'safe'],
+    unknown,
     {
       ArrowFunctionExpression(node: TSESTree.ArrowFunctionExpression): void;
     }
@@ -388,6 +406,7 @@ declare module 'eslint/lib/rules/no-useless-constructor' {
   const rule: TSESLint.RuleModule<
     'noUselessConstructor',
     [],
+    unknown,
     {
       MethodDefinition(node: TSESTree.MethodDefinition): void;
     }
@@ -406,6 +425,7 @@ declare module 'eslint/lib/rules/init-declarations' {
         ignoreForLoopInit?: boolean;
       }?,
     ],
+    unknown,
     {
       'VariableDeclaration:exit'(node: TSESTree.VariableDeclaration): void;
     }
@@ -423,6 +443,7 @@ declare module 'eslint/lib/rules/no-invalid-this' {
         capIsConstructor?: boolean;
       }?,
     ],
+    unknown,
     {
       // Common
       ThisExpression(node: TSESTree.ThisExpression): void;
@@ -444,6 +465,7 @@ declare module 'eslint/lib/rules/dot-notation' {
         allowIndexSignaturePropertyAccess?: boolean;
       },
     ],
+    unknown,
     {
       MemberExpression(node: TSESTree.MemberExpression): void;
     }
@@ -457,6 +479,7 @@ declare module 'eslint/lib/rules/no-loss-of-precision' {
   const rule: TSESLint.RuleModule<
     'noLossOfPrecision',
     [],
+    unknown,
     {
       Literal(node: TSESTree.Literal): void;
     }
@@ -475,6 +498,7 @@ declare module 'eslint/lib/rules/prefer-const' {
         ignoreReadBeforeAssign?: boolean;
       },
     ],
+    unknown,
     {
       'Program:exit'(node: TSESTree.Program): void;
       VariableDeclaration(node: TSESTree.VariableDeclaration): void;
@@ -502,6 +526,7 @@ declare module 'eslint/lib/rules/prefer-destructuring' {
   const rule: TSESLint.RuleModule<
     'preferDestructuring',
     [Option0, Option1?],
+    unknown,
     {
       VariableDeclarator(node: TSESTree.VariableDeclarator): void;
       AssignmentExpression(node: TSESTree.AssignmentExpression): void;
@@ -556,6 +581,7 @@ declare module 'eslint/lib/rules/no-restricted-imports' {
     | 'patterns'
     | 'patternWithCustomMessage',
     rule.ArrayOfStringOrObject | [ObjectOfPathsAndPatterns],
+    unknown,
     rule.RuleListener
   >;
   export = rule;