“use strict”;

Object.defineProperty(exports, “__esModule”, {

value: true

}); exports.default = splitExportDeclaration;

function t() {

const data = _interopRequireWildcard(require("@babel/types"));

t = function () {
  return data;
};

return data;

}

function _interopRequireWildcard(obj) { if (obj && obj.__esModule) { return obj; } else { var newObj = {}; if (obj != null) { for (var key in obj) { if (Object.prototype.hasOwnProperty.call(obj, key)) { var desc = Object.defineProperty && Object.getOwnPropertyDescriptor ? Object.getOwnPropertyDescriptor(obj, key) : {}; if (desc.get || desc.set) { Object.defineProperty(newObj, key, desc); } else { newObj = obj; } } } } newObj.default = obj; return newObj; } }

function splitExportDeclaration(exportDeclaration) {

if (!exportDeclaration.isExportDeclaration()) {
  throw new Error("Only export declarations can be splitted.");
}

const isDefault = exportDeclaration.isExportDefaultDeclaration();
const declaration = exportDeclaration.get("declaration");
const isClassDeclaration = declaration.isClassDeclaration();

if (isDefault) {
  const standaloneDeclaration = declaration.isFunctionDeclaration() || isClassDeclaration;
  const scope = declaration.isScope() ? declaration.scope.parent : declaration.scope;
  let id = declaration.node.id;
  let needBindingRegistration = false;

  if (!id) {
    needBindingRegistration = true;
    id = scope.generateUidIdentifier("default");

    if (standaloneDeclaration || declaration.isFunctionExpression() || declaration.isClassExpression()) {
      declaration.node.id = t().cloneNode(id);
    }
  }

  const updatedDeclaration = standaloneDeclaration ? declaration : t().variableDeclaration("var", [t().variableDeclarator(t().cloneNode(id), declaration.node)]);
  const updatedExportDeclaration = t().exportNamedDeclaration(null, [t().exportSpecifier(t().cloneNode(id), t().identifier("default"))]);
  exportDeclaration.insertAfter(updatedExportDeclaration);
  exportDeclaration.replaceWith(updatedDeclaration);

  if (needBindingRegistration) {
    scope.registerDeclaration(exportDeclaration);
  }

  return exportDeclaration;
}

if (exportDeclaration.get("specifiers").length > 0) {
  throw new Error("It doesn't make sense to split exported specifiers.");
}

const bindingIdentifiers = declaration.getOuterBindingIdentifiers();
const specifiers = Object.keys(bindingIdentifiers).map(name => {
  return t().exportSpecifier(t().identifier(name), t().identifier(name));
});
const aliasDeclar = t().exportNamedDeclaration(null, specifiers);
exportDeclaration.insertAfter(aliasDeclar);
exportDeclaration.replaceWith(declaration.node);
return exportDeclaration;

}