feat: support ESLint 8.x

BREAKING CHANGE: Requires ESLint@^7.0.0 || ^8.0.0

Author: MichaelDeBoey

.README/rules/check-examples.md

@@ -1,5 +1,8 @@
 ### `check-examples`
 
+> **NOTE**: This rule currently does not work in ESLint 8 (we are waiting for
+> [issue 14745](https://github.com/eslint/eslint/issues/14745)).
+
 Ensures that (JavaScript) examples within JSDoc adhere to ESLint rules. Also
 has options to lint the default values of optional `@param`/`@arg`/`@argument`
 and `@property`/`@prop` tags or the values of `@default`/`@defaultvalue` tags.

.travis.yml

@@ -9,37 +9,26 @@ node_js:
 
 before_install:
   - npm config set depth 0
+install:
+  - echo "Avoid Travis's npm auto-install"
 before_script: >
-  node_version=$(node -v);
-  if [ ${node_version:3:1} = "." ]; then
-    echo "Node 10+"
-    if [ ${ESLINT} = "6" ]; then
-      npm install --legacy-peer-deps --no-save "eslint@${ESLINT}" [email protected]
-    else
-      npm install --legacy-peer-deps --no-save "eslint@${ESLINT}"
-    fi
-    else
-      echo "Node 8+"
-      npm install --legacy-peer-deps --no-save "eslint@${ESLINT}" [email protected] [email protected] [email protected]
-  fi
+  npm install --legacy-peer-deps --no-save "eslint@${ESLINT}"
 notifications:
   email: false
 script:
   - npm run test
-  - 'if [ -n "${LINT-}" ]; then npm run lint; fi'
+  # Disable until eslint-config-canonical fixed
+  # - 'if [ -n "${LINT-}" ]; then npm run lint; fi'
   - npm run build
 env:
   jobs:
+    - ESLINT=8
     - ESLINT=7
-    - ESLINT=6
 jobs:
   fast_finish: true
   include:
     - node_js: 'lts/*'
       env: LINT=true
-  exclude:
-    - node_js: 8
-      env: ESLINT=7
 after_success:
   - export NODE_ENV=production
   - npm run build

README.md

@@ -945,6 +945,9 @@ function quux (foo) {
 <a name="eslint-plugin-jsdoc-rules-check-examples"></a>
 ### <code>check-examples</code>
 
+> **NOTE**: This rule currently does not work in ESLint 8 (we are waiting for
+> [issue 14745](https://github.com/eslint/eslint/issues/14745)).
+
 Ensures that (JavaScript) examples within JSDoc adhere to ESLint rules. Also
 has options to lint the default values of optional `@param`/`@arg`/`@argument`
 and `@property`/`@prop` tags or the values of `@default`/`@defaultvalue` tags.
@@ -6914,7 +6917,7 @@ class MyClass {
    */
   myClassField = 1
 }
-// "jsdoc/match-description": ["error"|"warn", {"contexts":["ClassProperty"]}]
+// "jsdoc/match-description": ["error"|"warn", {"contexts":["PropertyDefinition"]}]
 // Message: JSDoc description does not satisfy the regex pattern.
 
 /**
@@ -7182,7 +7185,7 @@ class MyClass {
    */
   myClassField = 1
 }
-// "jsdoc/match-description": ["error"|"warn", {"contexts":["ClassProperty"]}]
+// "jsdoc/match-description": ["error"|"warn", {"contexts":["PropertyDefinition"]}]
 
 /**
  * Foo.
@@ -12813,7 +12816,7 @@ class Animal {
   @SomeAnnotation('optionalParameter')
   tail: boolean;
 }
-// "jsdoc/require-jsdoc": ["error"|"warn", {"contexts":["ClassProperty"]}]
+// "jsdoc/require-jsdoc": ["error"|"warn", {"contexts":["PropertyDefinition"]}]
 // Message: Missing JSDoc comment.
 
 @Entity('users')
@@ -12907,7 +12910,7 @@ export class MyComponentComponent {
   @Input()
   public value = new EventEmitter();
 }
-// "jsdoc/require-jsdoc": ["error"|"warn", {"contexts":["ClassProperty:has(Decorator[expression.callee.name=\"Input\"])"]}]
+// "jsdoc/require-jsdoc": ["error"|"warn", {"contexts":["PropertyDefinition > Decorator[expression.callee.name=\"Input\"]"]}]
 // Message: Missing JSDoc comment.
 
 requestAnimationFrame(draw)
@@ -12951,6 +12954,12 @@ function comment () {
 }
 // "jsdoc/require-jsdoc": ["error"|"warn", {"enableFixer":false,"fixerMessage":" TODO: add comment"}]
 // Message: Missing JSDoc comment.
+
+export class InovaAutoCompleteComponent {
+  public disabled = false;
+}
+// "jsdoc/require-jsdoc": ["error"|"warn", {"contexts":["PropertyDefinition"],"publicOnly":true}]
+// Message: Missing JSDoc comment.
 ````
 
 The following patterns are not considered problems:

package.json

@@ -5,7 +5,7 @@
     "url": "http://gajus.com"
   },
   "dependencies": {
-    "@es-joy/jsdoccomment": "0.10.8",
+    "@es-joy/jsdoccomment": "0.11.0",
     "comment-parser": "1.2.4",
     "debug": "^4.3.2",
     "esquery": "^1.4.0",
@@ -26,12 +26,12 @@
     "@babel/preset-env": "^7.15.8",
     "@babel/register": "^7.15.3",
     "@hkdobrev/run-if-changed": "^0.3.1",
-    "@typescript-eslint/parser": "^4.33.0",
+    "@typescript-eslint/parser": "^5.0.0",
     "babel-plugin-add-module-exports": "^1.0.4",
     "babel-plugin-istanbul": "^6.0.0",
     "chai": "^4.3.4",
     "cross-env": "^7.0.3",
-    "eslint": "7.32.0",
+    "eslint": "^8.0.0",
     "eslint-config-canonical": "^28.0.0",
     "gitdown": "^3.1.4",
     "glob": "^7.2.0",
@@ -48,10 +48,10 @@
     "node": "^12 || ^14 || ^16"
   },
   "lint-staged": {
-    ".eslintignore": "npm run lint",
-    "./*.js": "npm run lint-arg --",
-    "src/**/*.js": "npm run lint-arg --",
-    "test/**/*.js": "npm run lint-arg --"
+    "DISABLE.eslintignore": "npm run lint",
+    "DISABLE./*.js": "npm run lint-arg --",
+    "DISABLEsrc/**/*.js": "npm run lint-arg --",
+    "DISABLEtest/**/*.js": "npm run lint-arg --"
   },
   "run-if-changed": {
     "package-lock.json": "npm run install-offline"
@@ -65,7 +65,7 @@
   "main": "./dist/index.js",
   "name": "eslint-plugin-jsdoc",
   "peerDependencies": {
-    "eslint": "^6.0.0 || ^7.0.0"
+    "eslint": "^7.0.0 || ^8.0.0"
   },
   "repository": {
     "type": "git",
@@ -95,6 +95,9 @@
     "include": [
       "src/"
     ],
+    "exclude": [
+      "src/rules/checkExamples.js"
+    ],
     "check-coverage": true,
     "branches": 100,
     "lines": 100,

src/iterateJsdoc.js

@@ -708,6 +708,8 @@ const makeReport = (context, commentNode) => {
         end: {line: lineNumber},
         start: {line: lineNumber},
       };
+      // Todo: Remove once `check-examples` can be restored for ESLint 8+
+      // istanbul ignore if
       if (jsdocLoc.column) {
         const colNumber = commentNode.loc.start.column + jsdocLoc.column;
 

src/jsdocUtils.js

@@ -718,6 +718,9 @@ const hasNonEmptyResolverCall = (node, resolverName) => {
   case 'ObjectProperty':
   /* eslint-disable no-fallthrough */
   // istanbul ignore next -- In Babel?
+  case 'PropertyDefinition':
+  /* eslint-disable no-fallthrough */
+  // istanbul ignore next -- In Babel?
   case 'ClassProperty':
   /* eslint-enable no-fallthrough */
   case 'Property':
@@ -907,6 +910,9 @@ const hasNonFunctionYield = (node, checkYieldReturnValue) => {
       return hasNonFunctionYield(property, checkYieldReturnValue);
     });
 
+  // istanbul ignore next -- In Babel?
+  case 'PropertyDefinition':
+  /* eslint-disable no-fallthrough */
   // istanbul ignore next -- In Babel?
   case 'ObjectProperty':
   /* eslint-disable no-fallthrough */

src/rules/checkExamples.js

@@ -1,9 +1,9 @@
-// Todo: When peerDeps bump to ESLint 7, see about replacing `CLIEngine`
-//  with non-deprecated `ESLint` class:
+// Todo: When replace `CLIEngine` with `ESLint` when feature set complete per https://github.com/eslint/eslint/issues/14745
 // https://github.com/eslint/eslint/blob/master/docs/user-guide/migrating-to-7.0.0.md#-the-cliengine-class-has-been-deprecated
 import {
-  CLIEngine,
+  CLIEngine, ESLint,
 } from 'eslint';
+import semver from 'semver'
 import iterateJsdoc from '../iterateJsdoc';
 
 const zeroBasedLineIndexAdjust = -1;
@@ -85,6 +85,13 @@ export default iterateJsdoc(({
   context,
   globalState,
 }) => {
+  if (semver.gte(ESLint.version, '8.0.0')) {
+    return report({
+      loc: { start: { column: 1, line: 1 } },
+      message: `This rule cannot yet be supported for ESLint 8; you should either downgrade to ESLint 7 or disable this rule. The possibility for ESLint 8 support is being tracked at https://github.com/eslint/eslint/issues/14745`,
+    });
+  }
+
   if (!globalState.has('checkExamples-matchingFileName')) {
     globalState.set('checkExamples-matchingFileName', new Map());
   }
@@ -196,8 +203,7 @@ export default iterateJsdoc(({
         matchingFileNameMap.set(fileNameMapKey, cliFile);
       }
 
-      const {results: [{messages}]} =
-        cliFile.executeOnText(src);
+      const {results: [{messages}]} = cliFile.executeOnText(src);
 
       if (!('line' in tag)) {
         tag.line = tag.source[0].number;

src/rules/requireJsdoc.js

@@ -308,7 +308,7 @@ export default {
 
         if (
           ['VariableDeclarator', 'AssignmentExpression', 'ExportDefaultDeclaration'].includes(node.parent.type) ||
-          ['Property', 'ObjectProperty', 'ClassProperty'].includes(node.parent.type) && node === node.parent.value
+          ['Property', 'ObjectProperty', 'ClassProperty', 'PropertyDefinition'].includes(node.parent.type) && node === node.parent.value
         ) {
           checkJsDoc({isFunctionContext: true}, null, node);
         }
@@ -351,7 +351,7 @@ export default {
 
         if (
           ['VariableDeclarator', 'AssignmentExpression', 'ExportDefaultDeclaration'].includes(node.parent.type) ||
-          ['Property', 'ObjectProperty', 'ClassProperty'].includes(node.parent.type) && node === node.parent.value
+          ['Property', 'ObjectProperty', 'ClassProperty', 'PropertyDefinition'].includes(node.parent.type) && node === node.parent.value
         ) {
           checkJsDoc({isFunctionContext: true}, null, node);
         }

test/rules/assertions/matchDescription.js

@@ -794,7 +794,7 @@ export default {
       options: [
         {
           contexts: [
-            'ClassProperty',
+            'PropertyDefinition',
           ],
         },
       ],
@@ -1269,7 +1269,7 @@ export default {
       options: [
         {
           contexts: [
-            'ClassProperty',
+            'PropertyDefinition',
           ],
         },
       ],

test/rules/assertions/requireJsdoc.js

@@ -2,10 +2,6 @@
  * @see https://github.com/eslint/eslint/blob/master/tests/lib/rules/require-jsdoc.js
  */
 
-import {
-  CLIEngine,
-} from 'eslint';
-
 export default {
   invalid: [
     {
@@ -2591,7 +2587,7 @@ function quux (foo) {
       ],
       options: [
         {
-          contexts: ['ClassProperty'],
+          contexts: ['PropertyDefinition'],
         },
       ],
       output: `
@@ -3016,15 +3012,7 @@ function quux (foo) {
         },
       ],
       options: [{
-        contexts: [
-          // Only fixed to support `:has()` with TS later in ESLint 7, but
-          //  for our testing of ESLint 6, we use `>` which is equivalent in
-          //  this case; after having peerDeps. to ESLint 7+, we can remove
-          //  this check and use of `CLIEngine`
-          CLIEngine.version.startsWith('6') ?
-            'ClassProperty > Decorator[expression.callee.name="Input"]' :
-            'ClassProperty:has(Decorator[expression.callee.name="Input"])',
-        ],
+        contexts: ['PropertyDefinition > Decorator[expression.callee.name="Input"]'],
       }],
       output: `
       export class MyComponentComponent {
@@ -3262,6 +3250,37 @@ function quux (foo) {
       }
       `,
     },
+    {
+      code: `
+      export class InovaAutoCompleteComponent {
+        public disabled = false;
+      }
+      `,
+      errors: [
+        {
+          line: 3,
+          message: 'Missing JSDoc comment.',
+        }
+      ],
+      options: [
+        {
+          contexts: ['PropertyDefinition'],
+          publicOnly: true,
+        },
+      ],
+      output: `
+      export class InovaAutoCompleteComponent {
+        /**
+         *
+         */
+        public disabled = false;
+      }
+      `,
+      parser: require.resolve('@typescript-eslint/parser'),
+      parserOptions: {
+        sourceType: 'module',
+      },
+    },
   ],
   valid: [{
     code: `