Support ESLint v8

.github/workflows/main.yml

@@ -24,7 +24,7 @@ jobs:
       - uses: actions/setup-node@v2
         with:
           node-version: ${{ matrix.node-version }}
-      - run: npm install
+      - run: npm install --legacy-peer-deps
       - run: npx ava
   lint-test:
     runs-on: ubuntu-latest
@@ -33,8 +33,8 @@ jobs:
       - uses: actions/setup-node@v2
         with:
           node-version: 16
-      - run: npm install
-      - run: npx xo
+      - run: npm install --legacy-peer-deps
+      # - run: npx xo
       # Force update snapshots, https://github.com/avajs/ava/discussions/2754
       - run: npx nyc ava --update-snapshots
         env:
@@ -45,17 +45,19 @@ jobs:
       - uses: codecov/codecov-action@v1
         with:
           fail_ci_if_error: true
+      # `xo` can't work on ESLint 8
+      - run: npm install eslint@7 && npx xo
   run-rules-on-codebase:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v2
       - uses: actions/setup-node@v2
-      - run: npm install
+      - run: npm install --legacy-peer-deps
       - run: npm run run-rules-on-codebase
   integration:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v2
       - uses: actions/setup-node@v2
-      - run: npm install
+      - run: npm install --legacy-peer-deps
       - run: npm run integration

package.json

@@ -63,7 +63,7 @@
 		"ava": "^3.15.0",
 		"chalk": "^4.1.2",
 		"enquirer": "2.3.6",
-		"eslint": "^7.32.0",
+		"eslint": "^8.0.0",
 		"eslint-ava-rule-tester": "^4.0.0",
 		"eslint-plugin-eslint-plugin": "^3.5.3",
 		"eslint-remote-tester": "^1.3.0",
@@ -79,7 +79,7 @@
 		"xo": "^0.44.0"
 	},
 	"peerDependencies": {
-		"eslint": ">=7.32.0"
+		"eslint": ">=8.0.0"
 	},
 	"ava": {
 		"files": [

rules/expiring-todo-comments.js

@@ -2,7 +2,7 @@
 const readPkgUp = require('read-pkg-up');
 const semver = require('semver');
 const ci = require('ci-info');
-const baseRule = require('eslint/lib/rules/no-warning-comments');
+const baseRule = require('eslint/use-at-your-own-risk').builtinRules.get('no-warning-comments');
 
 // `unicorn/` prefix is added to avoid conflicts with core rule
 const MESSAGE_ID_AVOID_MULTIPLE_DATES = 'unicorn/avoidMultipleDates';

rules/no-keyword-prefix.js

@@ -1,4 +1,5 @@
 'use strict';
+const isShorthandPropertyAssignmentPatternLeft = require('./utils/is-shorthand-property-assignment-pattern-left.js');
 
 const MESSAGE_ID = 'noKeywordPrefix';
 const messages = {
@@ -130,6 +131,7 @@ const create = context => {
 					Boolean(keyword)
 					&& !ALLOWED_PARENT_TYPES.has(effectiveParent.type)
 					&& !(parent.right === node)
+					&& !isShorthandPropertyAssignmentPatternLeft(node)
 				) {
 					report(node, keyword);
 				}

rules/selectors/reference-identifier-selector.js

@@ -22,7 +22,7 @@ const nonReferenceSelectors = [
 	// `const Identifier = 1`
 	'VariableDeclarator > .id',
 	// `const foo = {Identifier: 1}`
-	'ObjectExpression > Property[shorthand!=true][computed!=true].properties > .key',
+	'ObjectExpression > Property[computed!=true].properties > .key',
 	// `const {Identifier} = {}`
 	// `const {Identifier: foo} = {}`
 	'ObjectPattern > Property[computed!=true].properties > .key',

test/snapshots/prefer-dom-node-text-content.mjs.md

@@ -49,18 +49,7 @@ Generated by [AVA](https://avajs.dev).
 ## Invalid #4
       1 | const {innerText} = node;
 
-> Error 1/2
-
-    `␊
-    > 1 | const {innerText} = node;␊
-        |        ^^^^^^^^^ Prefer \`.textContent\` over \`.innerText\`.␊
-    ␊
-    --------------------------------------------------------------------------------␊
-    Suggestion 1/1: Switch to \`.textContent\`.␊
-      1 | const {textContent: innerText} = node;␊
-    `
-
-> Error 2/2
+> Error 1/1
 
     `␊
     > 1 | const {innerText} = node;␊
@@ -74,18 +63,7 @@ Generated by [AVA](https://avajs.dev).
 ## Invalid #5
       1 | const {innerText,} = node;
 
-> Error 1/2
-
-    `␊
-    > 1 | const {innerText,} = node;␊
-        |        ^^^^^^^^^ Prefer \`.textContent\` over \`.innerText\`.␊
-    ␊
-    --------------------------------------------------------------------------------␊
-    Suggestion 1/1: Switch to \`.textContent\`.␊
-      1 | const {textContent: innerText,} = node;␊
-    `
-
-> Error 2/2
+> Error 1/1
 
     `␊
     > 1 | const {innerText,} = node;␊
@@ -113,18 +91,7 @@ Generated by [AVA](https://avajs.dev).
 ## Invalid #7
       1 | ({innerText} = node);
 
-> Error 1/2
-
-    `␊
-    > 1 | ({innerText} = node);␊
-        |   ^^^^^^^^^ Prefer \`.textContent\` over \`.innerText\`.␊
-    ␊
-    --------------------------------------------------------------------------------␊
-    Suggestion 1/1: Switch to \`.textContent\`.␊
-      1 | ({textContent: innerText} = node);␊
-    `
-
-> Error 2/2
+> Error 1/1
 
     `␊
     > 1 | ({innerText} = node);␊
@@ -152,18 +119,7 @@ Generated by [AVA](https://avajs.dev).
 ## Invalid #9
       1 | function foo({innerText}) {return innerText}
 
-> Error 1/2
-
-    `␊
-    > 1 | function foo({innerText}) {return innerText}␊
-        |               ^^^^^^^^^ Prefer \`.textContent\` over \`.innerText\`.␊
-    ␊
-    --------------------------------------------------------------------------------␊
-    Suggestion 1/1: Switch to \`.textContent\`.␊
-      1 | function foo({textContent: innerText}) {return innerText}␊
-    `
-
-> Error 2/2
+> Error 1/1
 
     `␊
     > 1 | function foo({innerText}) {return innerText}␊
@@ -177,18 +133,7 @@ Generated by [AVA](https://avajs.dev).
 ## Invalid #10
       1 | for (const [{innerText}] of elements);
 
-> Error 1/2
-
-    `␊
-    > 1 | for (const [{innerText}] of elements);␊
-        |              ^^^^^^^^^ Prefer \`.textContent\` over \`.innerText\`.␊
-    ␊
-    --------------------------------------------------------------------------------␊
-    Suggestion 1/1: Switch to \`.textContent\`.␊
-      1 | for (const [{textContent: innerText}] of elements);␊
-    `
-
-> Error 2/2
+> Error 1/1
 
     `␊
     > 1 | for (const [{innerText}] of elements);␊

test/snapshots/prefer-module.mjs.md

@@ -119,18 +119,7 @@ Generated by [AVA](https://avajs.dev).
 ## Invalid #3
       1 | const foo = { __dirname};
 
-> Error 1/2
-
-    `␊
-    > 1 | const foo = { __dirname};␊
-        |               ^^^^^^^^^ Do not use "__dirname".␊
-    ␊
-    --------------------------------------------------------------------------------␊
-    Suggestion 1/1: Replace "__dirname" with \`"…(import.meta.url)"\`.␊
-      1 | const foo = { __dirname: path.dirname(url.fileURLToPath(import.meta.url))};␊
-    `
-
-> Error 2/2
+> Error 1/1
 
     `␊
     > 1 | const foo = { __dirname};␊
@@ -144,18 +133,7 @@ Generated by [AVA](https://avajs.dev).
 ## Invalid #4
       1 | const foo = {__filename, };
 
-> Error 1/2
-
-    `␊
-    > 1 | const foo = {__filename, };␊
-        |              ^^^^^^^^^^ Do not use "__filename".␊
-    ␊
-    --------------------------------------------------------------------------------␊
-    Suggestion 1/1: Replace "__filename" with \`"…(import.meta.url)"\`.␊
-      1 | const foo = {__filename: url.fileURLToPath(import.meta.url), };␊
-    `
-
-> Error 2/2
+> Error 1/1
 
     `␊
     > 1 | const foo = {__filename, };␊

test/utils/snapshot-rule-tester.mjs

@@ -1,10 +1,13 @@
 import {createRequire} from 'node:module';
-import {Linter, SourceCodeFixer} from 'eslint/lib/linter/index.js';
+import {Linter} from 'eslint';
 import {codeFrameColumns} from '@babel/code-frame';
 import outdent from 'outdent';
 
 const require = createRequire(import.meta.url);
 const codeFrameColumnsOptions = {linesAbove: Number.POSITIVE_INFINITY, linesBelow: Number.POSITIVE_INFINITY};
+// A simple version of `SourceCodeFixer.applyFixes`
+// https://github.com/eslint/eslint/issues/14936#issuecomment-906746754
+const applyFix = (code, {fix}) => `${code.slice(0, fix.range[0])}${fix.text}${code.slice(fix.range[1])}`;
 
 function visualizeRange(text, location, message) {
 	return codeFrameColumns(
@@ -184,7 +187,8 @@ class SnapshotRuleTester {
 						}
 
 						for (const [index, suggestion] of suggestions.entries()) {
-							const {output} = SourceCodeFixer.applyFixes(code, [suggestion]);
+							const output = applyFix(code, suggestion);
+
 							messageForSnapshot += outdent`
 								\n
 								${'-'.repeat(80)}