added ecmafeatures property to parser options

Author: srijan-paul

espree.js

@@ -108,7 +108,7 @@ const parsers = {
  * Tokenizes the given code.
  * @param {string} code The code to tokenize.
  * @param {ParserOptions} options Options defining how to tokenize.
- * @returns {Token[]} An array of tokens.
+ * @returns {import("./lib/token-translator.js").EsprimaToken[]} An array of tokens.
  * @throws {SyntaxError} If the input code is invalid.
  * @private
  */

lib/espree.js

@@ -251,7 +251,7 @@ function extendAcornParser(Parser) {
 
         /**
          * Overwrites the default raise method to throw Esprima-style errors.
-         * @param {int} pos The position of the error.
+         * @param {number} pos The position of the error.
          * @param {string} message The error message.
          * @throws {SyntaxError} A syntax error.
          * @returns {void}
@@ -268,7 +268,7 @@ function extendAcornParser(Parser) {
 
         /**
          * Overwrites the default raise method to throw Esprima-style errors.
-         * @param {int} pos The position of the error.
+         * @param {number} pos The position of the error.
          * @param {string} message The error message.
          * @throws {SyntaxError} A syntax error.
          * @returns {void}
@@ -279,7 +279,7 @@ function extendAcornParser(Parser) {
 
         /**
          * Overwrites the default unexpected method to throw Esprima-style errors.
-         * @param {int} pos The position of the error.
+         * @param {number} pos The position of the error.
          * @throws {SyntaxError} A syntax error.
          * @returns {void}
          */
@@ -324,8 +324,8 @@ function extendAcornParser(Parser) {
 
         /**
          * Performs last-minute Esprima-specific compatibility checks and fixes.
-         * @param {ASTNode} result The node to check.
-         * @returns {ASTNode} The finished node.
+         * @param {acorn.Node} result The node to check.
+         * @returns {acorn.Node} The finished node.
          */
         [ESPRIMA_FINISH_NODE](result) {
 

lib/features.js

@@ -14,6 +14,16 @@
 // Public
 //------------------------------------------------------------------------------
 
+/**
+ * @typedef {Object} EcmaFeatures
+ * @property {boolean} jsx
+ * @property {boolean} globalReturn
+ * @property {boolean} impliedStrict
+ */
+
+/**
+ * @type {EcmaFeatures}
+ */
 export default {
 
     // React JSX parsing

lib/options.js

@@ -90,6 +90,7 @@ function normalizeSourceType(sourceType = "script") {
  * @property {number|"latest"} ecmaVersion The ECMAScript version to use (between 3 and 13, or 2015 and 2022, or "latest").
  * @property {boolean} allowReserved Only allowed when `ecmaVersion` is set to 3.
  * @property {"script"|"module"|"commonjs"} sourceType The kind of the source string being parsed.
+ * @property {import("./features").EcmaFeatures} ecmaFeatures The additional features to enable.
  */
 
 /**