@babel/plugin-transform-regenerator/lib/index.js

Explode async and generator functions into a state machine.

"use strict";

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.default = void 0;
var _helperPluginUtils = require("@babel/helper-plugin-utils");
var _visit = require("./regenerator/visit.js");
var _default = exports.default = (0, _helperPluginUtils.declare)(({
  types: t,
  traverse,
  assertVersion
}) => {
  assertVersion(7);
  return {
    name: "transform-regenerator",
    visitor: traverse.visitors.merge([(0, _visit.getVisitor)(t), {
      CallExpression(path) {
        {
          var _this$availableHelper;
          if (!((_this$availableHelper = this.availableHelper) != null && _this$availableHelper.call(this, "regeneratorRuntime"))) {
            return;
          }
        }
        const callee = path.get("callee");
        if (!callee.isMemberExpression()) return;
        const obj = callee.get("object");
        if (obj.isIdentifier({
          name: "regeneratorRuntime"
        })) {
          const helper = this.addHelper("regeneratorRuntime");
          {
            if (t.isArrowFunctionExpression(helper)) {
              obj.replaceWith(helper.body);
              return;
            }
          }
          obj.replaceWith(t.callExpression(helper, []));
        }
      }
    }])
  };
});

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