feat: add ecmaVersion: 2024, regexp v flag parsing (#17324)

* feat: add `ecmaVersion: 2024`, regexp `v` flag parsing

* Update package.json

README.md

@@ -117,7 +117,7 @@ Yes, ESLint natively supports parsing JSX syntax (this must be enabled in [confi
 
 ### What ECMAScript versions does ESLint support?
 
-ESLint has full support for ECMAScript 3, 5 (default), 2015, 2016, 2017, 2018, 2019, 2020, 2021 and 2022. You can set your desired ECMAScript syntax (and other settings, like global variables or your target environments) through [configuration](https://eslint.org/docs/latest/use/configure).
+ESLint has full support for ECMAScript 3, 5 (default), 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, and 2023. You can set your desired ECMAScript syntax (and other settings, like global variables or your target environments) through [configuration](https://eslint.org/docs/latest/use/configure).
 
 ### What about experimental features?
 

conf/globals.js

@@ -128,6 +128,10 @@ const es2023 = {
     ...es2022
 };
 
+const es2024 = {
+    ...es2023
+};
+
 
 //-----------------------------------------------------------------------------
 // Exports
@@ -145,5 +149,6 @@ module.exports = {
     es2020,
     es2021,
     es2022,
-    es2023
+    es2023,
+    es2024
 };

docs/src/use/configure/language-options.md

@@ -193,7 +193,7 @@ By the same token, supporting ES6 syntax is not the same as supporting new ES6 g
 
 Parser options are set in your `.eslintrc.*` file with the `parserOptions` property. The available options are:
 
-* `ecmaVersion` - set to 3, 5 (default), 6, 7, 8, 9, 10, 11, 12, 13, or 14 to specify the version of ECMAScript syntax you want to use. You can also set it to 2015 (same as 6), 2016 (same as 7), 2017 (same as 8), 2018 (same as 9), 2019 (same as 10), 2020 (same as 11), 2021 (same as 12), 2022 (same as 13), or 2023 (same as 14) to use the year-based naming. You can also set `"latest"` to use the most recently supported version.
+* `ecmaVersion` - set to 3, 5 (default), 6, 7, 8, 9, 10, 11, 12, 13, 14, or 15 to specify the version of ECMAScript syntax you want to use. You can also set it to 2015 (same as 6), 2016 (same as 7), 2017 (same as 8), 2018 (same as 9), 2019 (same as 10), 2020 (same as 11), 2021 (same as 12), 2022 (same as 13), 2023 (same as 14), or 2024 (same as 15) to use the year-based naming. You can also set `"latest"` to use the most recently supported version.
 * `sourceType` - set to `"script"` (default) or `"module"` if your code is in ECMAScript modules.
 * `allowReserved` - allow the use of reserved words as identifiers (if `ecmaVersion` is 3).
 * `ecmaFeatures` - an object indicating which additional language features you'd like to use:

lib/shared/types.js

@@ -21,7 +21,7 @@ module.exports = {};
 /**
  * @typedef {Object} ParserOptions
  * @property {EcmaFeatures} [ecmaFeatures] The optional features.
- * @property {3|5|6|7|8|9|10|11|12|13|14|2015|2016|2017|2018|2019|2020|2021|2022|2023} [ecmaVersion] The ECMAScript version (or revision number).
+ * @property {3|5|6|7|8|9|10|11|12|13|14|15|2015|2016|2017|2018|2019|2020|2021|2022|2023|2024} [ecmaVersion] The ECMAScript version (or revision number).
  * @property {"script"|"module"} [sourceType] The source code type.
  * @property {boolean} [allowReserved] Allowing the use of reserved words as identifiers in ES3.
  */

package.json

@@ -75,7 +75,7 @@
     "escape-string-regexp": "^4.0.0",
     "eslint-scope": "^7.2.0",
     "eslint-visitor-keys": "^3.4.1",
-    "espree": "^9.5.2",
+    "espree": "^9.6.0",
     "esquery": "^1.4.2",
     "esutils": "^2.0.2",
     "fast-deep-equal": "^3.1.3",

tests/lib/linter/linter.js

@@ -4938,7 +4938,7 @@ var a = "test2";
             });
 
             it("supports ECMAScript version 'latest'", () => {
-                const messages = linter.verify("let x = 5 ** 7;", {
+                const messages = linter.verify("let x = /[\\q{abc|d}&&[A--B]]/v;", {
                     parserOptions: { ecmaVersion: "latest" }
                 });
                 const suppressedMessages = linter.getSuppressedMessages();