index.js

"use strict";

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.default = void 0;

function _helperPluginUtils() {
  const data = require("@babel/helper-plugin-utils");

  _helperPluginUtils = function () {
    return data;
  };

  return data;
}

function _pluginSyntaxOptionalCatchBinding() {
  const data = _interopRequireDefault(require("@babel/plugin-syntax-optional-catch-binding"));

  _pluginSyntaxOptionalCatchBinding = function () {
    return data;
  };

  return data;
}

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

var _default = (0, _helperPluginUtils().declare)(api => {
  api.assertVersion(7);
  return {
    name: "proposal-optional-catch-binding",
    inherits: _pluginSyntaxOptionalCatchBinding().default,
    visitor: {
      CatchClause(path) {
        if (!path.node.param) {
          const uid = path.scope.generateUidIdentifier("unused");
          const paramPath = path.get("param");
          paramPath.replaceWith(uid);
        }
      }

    }
  };
});

exports.default = _default;