Merge branch 'main' into fix-10982

Author: JoshuaKGoldberg

Diff for: .gitignore

@@ -73,17 +73,10 @@ jspm_packages/
 .DS_Store
 .idea
 dist
-_ts3.4
-_ts4.2
 *.tsbuildinfo
 .watchmanconfig
 .rollup.cache
 
-# the downlevel-dts output folders
-_ts3.4
-_ts4.2
-_ts4.3
-
 # Files copied as part of the build
 packages/types/src/generated/**/*.ts
 
@@ -99,3 +92,6 @@ packages/**/.yarn
 
 .nx/cache
 .nx/workspace-data
+
+# Vitest type tests
+tsconfig*.vitest-temp.json

Diff for: CHANGELOG.md

@@ -1,3 +1,16 @@
+## 8.29.1 (2025-04-07)
+
+### 🩹 Fixes
+
+- **eslint-plugin:** [no-deprecated] report on deprecated imported variable used as property ([#10998](https://github.com/typescript-eslint/typescript-eslint/pull/10998))
+- **typescript-estree:** use token type of `Numeric` instead of `Identifier` for bigint literals ([#11021](https://github.com/typescript-eslint/typescript-eslint/pull/11021))
+
+### ❤️ Thank You
+
+- Ronen Amiel
+
+You can read about our [versioning strategy](https://main--typescript-eslint.netlify.app/users/versioning) and [releases](https://main--typescript-eslint.netlify.app/users/releases) on our website.
+
 ## 8.29.0 (2025-03-31)
 
 ### 🚀 Features

Diff for: docs/users/Shared_Configurations.mdx

@@ -144,7 +144,7 @@ module.exports = {
 </TabItem>
 </Tabs>
 
-See [`configs/recommended.ts`](https://github.com/typescript-eslint/typescript-eslint/blob/main/packages/eslint-plugin/src/configs/recommended.ts) for the exact contents of this config.
+See [`configs/recommended.ts`](https://github.com/typescript-eslint/typescript-eslint/blob/main/packages/eslint-plugin/src/configs/eslintrc/recommended.ts) for the exact contents of this config.
 
 ### `recommended-type-checked`
 
@@ -173,7 +173,7 @@ module.exports = {
 </TabItem>
 </Tabs>
 
-See [`configs/recommended-type-checked.ts`](https://github.com/typescript-eslint/typescript-eslint/blob/main/packages/eslint-plugin/src/configs/recommended-type-checked.ts) for the exact contents of this config.
+See [`configs/recommended-type-checked.ts`](https://github.com/typescript-eslint/typescript-eslint/blob/main/packages/eslint-plugin/src/configs/eslintrc/recommended-type-checked.ts) for the exact contents of this config.
 
 ### `strict`
 
@@ -203,7 +203,7 @@ module.exports = {
 </Tabs>
 
 Some rules also enabled in `recommended` default to more strict settings in this configuration.
-See [`configs/strict.ts`](https://github.com/typescript-eslint/typescript-eslint/blob/main/packages/eslint-plugin/src/configs/strict.ts) for the exact contents of this config.
+See [`configs/strict.ts`](https://github.com/typescript-eslint/typescript-eslint/blob/main/packages/eslint-plugin/src/configs/eslintrc/strict.ts) for the exact contents of this config.
 
 :::tip
 We recommend a TypeScript project extend from `plugin:@typescript-eslint/strict` only if a nontrivial percentage of its developers are highly proficient in TypeScript.
@@ -242,7 +242,7 @@ module.exports = {
 </Tabs>
 
 Some rules also enabled in `recommended-type-checked` default to more strict settings in this configuration.
-See [`configs/strict-type-checked.ts`](https://github.com/typescript-eslint/typescript-eslint/blob/main/packages/eslint-plugin/src/configs/strict-type-checked.ts) for the exact contents of this config.
+See [`configs/strict-type-checked.ts`](https://github.com/typescript-eslint/typescript-eslint/blob/main/packages/eslint-plugin/src/configs/eslintrc/strict-type-checked.ts) for the exact contents of this config.
 
 :::tip
 We recommend a TypeScript project extend from `plugin:@typescript-eslint/strict-type-checked` only if a nontrivial percentage of its developers are highly proficient in TypeScript.
@@ -283,7 +283,7 @@ module.exports = {
 Note that `stylistic` does not replace `recommended` or `strict`.
 `stylistic` adds additional rules.
 
-See [`configs/stylistic.ts`](https://github.com/typescript-eslint/typescript-eslint/blob/main/packages/eslint-plugin/src/configs/stylistic.ts) for the exact contents of this config.
+See [`configs/stylistic.ts`](https://github.com/typescript-eslint/typescript-eslint/blob/main/packages/eslint-plugin/src/configs/eslintrc/stylistic.ts) for the exact contents of this config.
 
 ### `stylistic-type-checked`
 
@@ -315,7 +315,7 @@ module.exports = {
 Note that `stylistic-type-checked` does not replace `recommended-type-checked` or `strict-type-checked`.
 `stylistic-type-checked` adds additional rules.
 
-See [`configs/stylistic-type-checked.ts`](https://github.com/typescript-eslint/typescript-eslint/blob/main/packages/eslint-plugin/src/configs/stylistic-type-checked.ts) for the exact contents of this config.
+See [`configs/stylistic-type-checked.ts`](https://github.com/typescript-eslint/typescript-eslint/blob/main/packages/eslint-plugin/src/configs/eslintrc/stylistic-type-checked.ts) for the exact contents of this config.
 
 ## Other Configurations
 
@@ -326,7 +326,7 @@ typescript-eslint includes a few utility configurations.
 Enables each the rules provided as a part of typescript-eslint.
 Note that many rules are not applicable in all codebases, or are meant to be configured.
 
-See [`configs/all.ts`](https://github.com/typescript-eslint/typescript-eslint/blob/main/packages/eslint-plugin/src/configs/all.ts) for the exact contents of this config.
+See [`configs/all.ts`](https://github.com/typescript-eslint/typescript-eslint/blob/main/packages/eslint-plugin/src/configs/eslintrc/all.ts) for the exact contents of this config.
 
 :::warning
 We do not recommend TypeScript projects extend from `plugin:@typescript-eslint/all`.
@@ -345,14 +345,14 @@ We don't recommend using this directly; instead, extend from an earlier recommen
 
 This config is automatically included if you use any of the recommended configurations.
 
-See [`configs/base.ts`](https://github.com/typescript-eslint/typescript-eslint/blob/main/packages/eslint-plugin/src/configs/base.ts) for the exact contents of this config.
+See [`configs/base.ts`](https://github.com/typescript-eslint/typescript-eslint/blob/main/packages/eslint-plugin/src/configs/eslintrc/base.ts) for the exact contents of this config.
 
 ### `disable-type-checked`
 
 A utility ruleset that will disable type-aware linting and all type-aware rules available in our project.
 This config is useful if you'd like to have your base config concerned with type-aware linting, and then conditionally use [overrides](https://eslint.org/docs/latest/use/configure/configuration-files#configuration-based-on-glob-patterns) to disable type-aware linting on specific subsets of your codebase.
 
-See [`configs/disable-type-checked.ts`](https://github.com/typescript-eslint/typescript-eslint/blob/main/packages/eslint-plugin/src/configs/disable-type-checked.ts) for the exact contents of this config.
+See [`configs/disable-type-checked.ts`](https://github.com/typescript-eslint/typescript-eslint/blob/main/packages/eslint-plugin/src/configs/eslintrc/disable-type-checked.ts) for the exact contents of this config.
 
 :::info
 If you use type-aware rules from other plugins, you will need to manually disable these rules or use a premade config they provide to disable them.
@@ -449,7 +449,7 @@ module.exports = {
 
 This config is automatically included if you use any of the recommended configurations.
 
-See [`configs/eslint-recommended.ts`](https://github.com/typescript-eslint/typescript-eslint/blob/main/packages/eslint-plugin/src/configs/eslint-recommended.ts) for the exact contents of this config.
+See [`configs/eslint-recommended.ts`](https://github.com/typescript-eslint/typescript-eslint/blob/main/packages/eslint-plugin/src/configs/eslintrc/eslint-recommended.ts) for the exact contents of this config.
 
 ### `recommended-type-checked-only`
 
@@ -462,7 +462,7 @@ module.exports = {
 };
 ```
 
-See [`configs/recommended-type-checked-only.ts`](https://github.com/typescript-eslint/typescript-eslint/blob/main/packages/eslint-plugin/src/configs/recommended-type-checked-only.ts) for the exact contents of this config.
+See [`configs/recommended-type-checked-only.ts`](https://github.com/typescript-eslint/typescript-eslint/blob/main/packages/eslint-plugin/src/configs/eslintrc/recommended-type-checked-only.ts) for the exact contents of this config.
 
 ### `strict-type-checked-only`
 
@@ -475,7 +475,7 @@ module.exports = {
 };
 ```
 
-See [`configs/strict-type-checked-only.ts`](https://github.com/typescript-eslint/typescript-eslint/blob/main/packages/eslint-plugin/src/configs/strict-type-checked-only.ts) for the exact contents of this config.
+See [`configs/strict-type-checked-only.ts`](https://github.com/typescript-eslint/typescript-eslint/blob/main/packages/eslint-plugin/src/configs/eslintrc/strict-type-checked-only.ts) for the exact contents of this config.
 
 :::warning
 This configuration is not considered "stable" under Semantic Versioning (semver).
@@ -493,7 +493,7 @@ module.exports = {
 };
 ```
 
-See [`configs/stylistic-type-checked-only.ts`](https://github.com/typescript-eslint/typescript-eslint/blob/main/packages/eslint-plugin/src/configs/stylistic-type-checked-only.ts) for the exact contents of this config.
+See [`configs/stylistic-type-checked-only.ts`](https://github.com/typescript-eslint/typescript-eslint/blob/main/packages/eslint-plugin/src/configs/eslintrc/stylistic-type-checked-only.ts) for the exact contents of this config.
 
 ## Suggesting Configuration Changes
 

Diff for: eslint.config.mjs

@@ -31,7 +31,16 @@ const restrictNamedDeclarations = {
 
 const vitestFiles = [
   'packages/eslint-plugin-internal/tests/**/*.test.{ts,tsx,cts,mts}',
+  'packages/integration-tests/tests/**/*.test.{ts,tsx,cts,mts},',
+  'packages/integration-tests/tools/integration-test-base.ts',
+  'packages/integration-tests/tools/pack-packages.ts',
+  'packages/parser/tests/lib/**/*.test.{ts,tsx,cts,mts}',
+  'packages/parser/tests/test-utils/**/*.{ts,tsx,cts,mts}',
+  'packages/rule-tester/tests/**/*.test.{ts,tsx,cts,mts}',
+  'packages/type-utils/tests/**/*.test.{ts,tsx,cts,mts}',
   'packages/typescript-eslint/tests/**/*.test.{ts,tsx,cts,mts}',
+  'packages/utils/tests/**/*.test?(-d).{ts,tsx,cts,mts}',
+  'packages/visitor-keys/tests/**/*.test.{ts,tsx,cts,mts}',
 ];
 
 export default tseslint.config(
@@ -378,20 +387,13 @@ export default tseslint.config(
   // define the vitest globals for all test files
   {
     files: vitestFiles,
-    languageOptions: {
-      globals: {
-        ...vitestPlugin.environments.env.globals,
-      },
-    },
+    ...vitestPlugin.configs.env,
   },
   // test file specific configuration
   {
     files: [
       'packages/*/tests/**/*.test.{ts,tsx,cts,mts}',
       'packages/*/tests/**/test.{ts,tsx,cts,mts}',
-      'packages/parser/tests/**/*.{ts,tsx,cts,mts}',
-      'packages/integration-tests/tools/integration-test-base.ts',
-      'packages/integration-tests/tools/pack-packages.ts',
     ],
     ignores: vitestFiles,
     rules: {
@@ -439,6 +441,7 @@ export default tseslint.config(
       'vitest/no-identical-title': 'error',
       'vitest/no-test-prefixes': 'error',
       'vitest/no-test-return-statement': 'error',
+      'vitest/prefer-describe-function-title': 'error',
       'vitest/prefer-each': 'error',
       'vitest/prefer-spy-on': 'error',
       'vitest/prefer-to-be': 'error',
@@ -645,9 +648,9 @@ export default tseslint.config(
   {
     files: ['**/*'],
     ignores: [
-      'packages/eslint-plugin/src/configs/*',
+      'packages/eslint-plugin/src/configs/eslintrc/*',
+      'packages/eslint-plugin/src/configs/flat/*',
       'packages/scope-manager/src/configs/*',
-      'packages/typescript-eslint/src/configs/*',
     ],
     rules: {
       '@typescript-eslint/sort-type-constituents': 'off',

Diff for: knip.ts

@@ -11,9 +11,14 @@ export default {
     types: 'off',
     unresolved: 'off',
   },
+
+  vite: false,
+
   vitest: {
-    config: ['vitest.config.mts', 'packages/*/vitest.config.mts'],
+    config: ['vitest.config.mts'],
+    entry: ['tests/**/*.{bench,test,test-d}.?(c|m)ts?(x)'],
   },
+
   workspaces: {
     '.': {
       entry: ['tools/release/changelog-renderer.js', 'tools/scripts/**/*.mts'],
@@ -29,8 +34,6 @@ export default {
         'glob',
         'jest-specific-snapshot',
         'make-dir',
-        'ncp',
-        'tmp',
         // imported for type purposes only
         'website',
       ],
@@ -56,13 +59,22 @@ export default {
       ignore: ['tests/fixtures/**'],
     },
     'packages/integration-tests': {
-      ignore: ['fixtures/**', 'typings/global.d.ts'],
+      ignore: ['fixtures/**'],
     },
     'packages/parser': {
       ignore: ['tests/fixtures/**'],
+
+      vitest: {
+        config: ['vitest.config.mts'],
+        entry: ['tests/lib/**/*.{bench,test,test-d}.?(c|m)ts?(x)'],
+      },
     },
     'packages/rule-tester': {
       ignore: ['typings/eslint.d.ts'],
+
+      mocha: {
+        entry: ['tests/eslint-base/eslint-base.test.js'],
+      },
     },
     'packages/scope-manager': {
       ignore: ['tests/fixtures/**'],
@@ -76,7 +88,6 @@ export default {
     },
     'packages/utils': {
       ignore: [
-        'tests/**/*.type-test.ts',
         'typings/eslint.d.ts',
         'typings/eslint-community-eslint-utils.d.ts',
       ],
@@ -134,6 +145,7 @@ export default {
         'src/mock/eslint-rules.js',
         'src/mock/eslint.js',
         'src/mock/lru-cache.js',
+        'src/mock/parser.js',
         'src/mock/path.js',
         'src/mock/typescript.js',
         'src/mock/util.js',

Diff for: nx.json

@@ -103,12 +103,11 @@
         "{workspaceRoot}/vitest.config.base.mts",
         "{projectRoot}/vitest.config.mts"
       ],
-      "outputs": ["{options.reportsDirectory}"],
+      "outputs": ["{projectRoot}/coverage"],
       "cache": true,
       "options": {
         "config": "{projectRoot}/vitest.config.mts",
-        "watch": false,
-        "reportsDirectory": "{projectRoot}/coverage"
+        "watch": false
       }
     },
     "lint": {
@@ -132,7 +131,7 @@
     },
     "typecheck": {
       "dependsOn": ["types:copy-ast-spec"],
-      "outputs": ["{workspaceRoot}/dist/out-tsc/{projectRoot}"],
+      "outputs": ["{workspaceRoot}/dist"],
       "cache": true
     }
   },

Diff for: package.json

@@ -63,11 +63,11 @@
     "@eslint/eslintrc": "^3.2.0",
     "@eslint/js": "^9.15.0",
     "@jest/types": "29.6.3",
-    "@nx/devkit": "20.4.5",
-    "@nx/eslint": "20.4.5",
-    "@nx/jest": "20.4.5",
-    "@nx/vite": "20.4.5",
-    "@nx/workspace": "20.4.5",
+    "@nx/devkit": "20.7.2",
+    "@nx/eslint": "20.7.2",
+    "@nx/jest": "20.7.2",
+    "@nx/vite": "20.7.2",
+    "@nx/workspace": "20.7.2",
     "@swc/core": "^1.4.12",
     "@swc/jest": "^0.2.36",
     "@types/babel__code-frame": "^7.0.6",
@@ -78,7 +78,6 @@
     "@types/jest": "29.5.13",
     "@types/jest-specific-snapshot": "^0.5.9",
     "@types/natural-compare": "^1.4.3",
-    "@types/ncp": "^2.0.8",
     "@types/node": "^20.12.5",
     "@types/semver": "^7.5.8",
     "@types/tmp": "^0.2.6",
@@ -89,12 +88,11 @@
     "@typescript-eslint/types": "workspace:^",
     "@typescript-eslint/typescript-estree": "workspace:^",
     "@typescript-eslint/utils": "workspace:^",
-    "@vitest/coverage-v8": "^3.0.8",
-    "@vitest/eslint-plugin": "^1.1.37",
+    "@vitest/coverage-v8": "^3.1.1",
+    "@vitest/eslint-plugin": "^1.1.42",
     "console-fail-test": "^0.5.0",
     "cross-fetch": "^4.0.0",
     "cspell": "^8.15.2",
-    "downlevel-dts": ">=0.11.0",
     "eslint": "^9.15.0",
     "eslint-plugin-eslint-plugin": "^6.3.1",
     "eslint-plugin-import": "^2.31.0",
@@ -112,22 +110,21 @@
     "husky": "^9.1.4",
     "jest": "29.7.0",
     "jest-specific-snapshot": "^8.0.0",
+    "jiti": "2.4.2",
     "knip": "^5.41.1",
     "lint-staged": "^15.2.2",
     "make-dir": "^4.0.0",
     "markdownlint-cli": "^0.44.0",
-    "ncp": "^2.0.0",
-    "nx": "20.4.5",
+    "nx": "20.7.2",
     "prettier": "3.5.0",
     "pretty-format": "^29.7.0",
     "rimraf": "^5.0.5",
     "semver": "7.7.0",
-    "tmp": "^0.2.1",
     "tsx": "*",
     "typescript": ">=4.8.4 <5.9.0",
     "typescript-eslint": "workspace:^",
-    "vite": "^6.2.2",
-    "vitest": "^3.0.8",
+    "vite": "^6.2.6",
+    "vitest": "^3.1.1",
     "yargs": "17.7.2"
   },
   "resolutions": {
@@ -148,7 +145,8 @@
     "react-split-pane@^0.1.92": "patch:react-split-pane@npm%3A0.1.92#./.yarn/patches/react-split-pane-npm-0.1.92-93dbf51dff.patch",
     "tmp": "0.2.1",
     "tsx": "^4.7.2",
-    "typescript": "5.8.2"
+    "typescript": "5.8.2",
+    "@eslint/config-helpers": "^0.2.0"
   },
   "packageManager": "[email protected]",
   "nx": {

Diff for: packages/ast-spec/CHANGELOG.md

@@ -1,3 +1,15 @@
+## 8.29.1 (2025-04-07)
+
+### 🩹 Fixes
+
+- **typescript-estree:** use token type of `Numeric` instead of `Identifier` for bigint literals ([#11021](https://github.com/typescript-eslint/typescript-eslint/pull/11021))
+
+### ❤️ Thank You
+
+- Ronen Amiel
+
+You can read about our [versioning strategy](https://main--typescript-eslint.netlify.app/users/versioning) and [releases](https://main--typescript-eslint.netlify.app/users/releases) on our website.
+
 ## 8.29.0 (2025-03-31)
 
 This was a version bump only for ast-spec to align it with other projects, there were no code changes.