typhonjs-ast-walker/dist/index.js

Provides a simple Javascript AST traversal utility that traverses all nodes / children regardless of type.

'use strict';

Object.defineProperty(exports, "__esModule", {
  value: true
});

var _typeof = typeof Symbol === "function" && typeof Symbol.iterator === "symbol" ? function (obj) { return typeof obj; } : function (obj) { return obj && typeof Symbol === "function" && obj.constructor === Symbol ? "symbol" : typeof obj; };

exports.onPluginLoad = onPluginLoad;

var _ASTWalker = require('./ASTWalker.js');

var _ASTWalker2 = _interopRequireDefault(_ASTWalker);

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

/**
 * Default walker instance.
 * @type {ASTWalker}
 */
var walker = new _ASTWalker2.default();

/**
 * Provides a default ASTWalker instance.
 */
exports.default = walker;

/**
 * Wires up walker on the plugin eventbus.
 *
 * @param {PluginEvent} ev - The plugin event.
 *
 * @see https://www.npmjs.com/package/typhonjs-plugin-manager
 * @ignore
 */

function onPluginLoad(ev) {
  var eventbus = ev.eventbus;

  var eventPrepend = 'typhonjs';

  var options = ev.pluginOptions;

  // Apply any plugin options.
  if ((typeof options === 'undefined' ? 'undefined' : _typeof(options)) === 'object') {
    // If `eventPrepend` is defined then it is prepended before all event bindings.
    if (typeof options.eventPrepend === 'string') {
      eventPrepend = options.eventPrepend + ':';
    }
  }

  eventbus.on(eventPrepend + ':ast:walker:traverse', walker.traverse, walker);
}