feat: Support ES2024 and regexp v flag (#575)

* feat: Support ES2024 and regexp v flag

* update acorn

README.md

@@ -140,8 +140,8 @@ const options = {
     // create a top-level tokens array containing all tokens
     tokens: false,
 
-    // Set to 3, 5 (the 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 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.
+    // Set to 3, 5 (the 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 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.
     ecmaVersion: 3,
 
@@ -231,11 +231,11 @@ We are building on top of Acorn, however, so that we can contribute back and hel
 
 ### What ECMAScript features do you support?
 
-Espree supports all ECMAScript 2022 features and partially supports ECMAScript 2023 features.
+Espree supports all ECMAScript 2023 features and partially supports ECMAScript 2024 features.
 
-Because ECMAScript 2023 is still under development, we are implementing features as they are finalized. Currently, Espree supports:
+Because ECMAScript 2024 is still under development, we are implementing features as they are finalized. Currently, Espree supports:
 
-* [Hashbang grammar](https://github.com/tc39/proposal-hashbang)
+* [RegExp v flag with set notation + properties of strings](https://github.com/tc39/proposal-regexp-v-flag)
 
 See [finished-proposals.md](https://github.com/tc39/proposals/blob/master/finished-proposals.md) to know what features are finalized.
 

lib/options.js

@@ -18,7 +18,8 @@ const SUPPORTED_VERSIONS = [
     11, // 2020
     12, // 2021
     13, // 2022
-    14 // 2023
+    14, // 2023
+    15 // 2024
 ];
 
 /**

package.json

@@ -32,7 +32,7 @@
   "funding": "https://opencollective.com/eslint",
   "license": "BSD-2-Clause",
   "dependencies": {
-    "acorn": "^8.8.0",
+    "acorn": "^8.9.0",
     "acorn-jsx": "^5.3.2",
     "eslint-visitor-keys": "^3.4.1"
   },

tests/fixtures/ecma-version/11/dynamic-import/invalid-new-import.result.js

@@ -1,6 +1,6 @@
 export default {
-    "index": 4,
+    "index": 10,
     "lineNumber": 1,
-    "column": 5,
-    "message": "Cannot use new with import()"
+    "column": 11,
+    "message": "Unexpected token ("
 };

tests/fixtures/ecma-version/15/regexp-v-flag/invalid-regexp-class-set-expression.result.js

@@ -0,0 +1,6 @@
+export default {
+    "index": 13,
+    "lineNumber": 1,
+    "column": 14,
+    "message": "Invalid regular expression: /[A&&&]/: Invalid character in character class"
+};

tests/fixtures/ecma-version/15/regexp-v-flag/invalid-regexp-class-set-expression.src.js

@@ -0,0 +1 @@
+const re1 = /[A&&&]/v;

tests/fixtures/ecma-version/15/regexp-v-flag/invalid-regexp-string-negate.result.js

@@ -0,0 +1,6 @@
+export default {
+    "index": 13,
+    "lineNumber": 1,
+    "column": 14,
+    "message": "Invalid regular expression: /[^\\q{abc}]/: Negated character class may contain strings"
+};

tests/fixtures/ecma-version/15/regexp-v-flag/invalid-regexp-string-negate.src.js

@@ -0,0 +1 @@
+const re1 = /[^\q{abc}]/v

tests/fixtures/ecma-version/15/regexp-v-flag/invalid-regexp-unicode-property.result.js

@@ -0,0 +1,6 @@
+export default {
+    "index": 13,
+    "lineNumber": 1,
+    "column": 14,
+    "message": "Invalid regular expression: /\\P{Basic_Emoji}/: Invalid property name"
+};

tests/fixtures/ecma-version/15/regexp-v-flag/invalid-regexp-unicode-property.src.js

@@ -0,0 +1 @@
+const re1 = /\P{Basic_Emoji}/v

tests/fixtures/ecma-version/15/regexp-v-flag/invalid-regexp-v-flag.result.js

@@ -0,0 +1,6 @@
+export default {
+    "index": 13,
+    "lineNumber": 1,
+    "column": 14,
+    "message": "Invalid regular expression flag"
+};

tests/fixtures/ecma-version/15/regexp-v-flag/invalid-regexp-v-flag.src.js

@@ -0,0 +1 @@
+const re1 = /[A&&B]/uv;