add some babel stuff

node_modules/@babel/helper-split-export-declaration/lib/index.js

@@ -0,0 +1,68 @@
+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports.default = splitExportDeclaration;
+
+function t() {
+  var data = _interopRequireWildcard(require("@babel/types"));
+
+  t = function t() {
+    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[key] = obj[key]; } } } } newObj.default = obj; return newObj; } }
+
+function splitExportDeclaration(exportDeclaration) {
+  if (!exportDeclaration.isExportDeclaration()) {
+    throw new Error("Only export declarations can be splitted.");
+  }
+
+  var isDefault = exportDeclaration.isExportDefaultDeclaration();
+  var declaration = exportDeclaration.get("declaration");
+  var isClassDeclaration = declaration.isClassDeclaration();
+
+  if (isDefault) {
+    var standaloneDeclaration = declaration.isFunctionDeclaration() || isClassDeclaration;
+    var scope = declaration.isScope() ? declaration.scope.parent : declaration.scope;
+    var id = declaration.node.id;
+    var needBindingRegistration = false;
+
+    if (!id) {
+      needBindingRegistration = true;
+      id = scope.generateUidIdentifier("default");
+
+      if (standaloneDeclaration || declaration.isFunctionExpression() || declaration.isClassExpression()) {
+        declaration.node.id = t().cloneNode(id);
+      }
+    }
+
+    var updatedDeclaration = standaloneDeclaration ? declaration : t().variableDeclaration("var", [t().variableDeclarator(t().cloneNode(id), declaration.node)]);
+    var updatedExportDeclaration = t().exportNamedDeclaration(null, [t().exportSpecifier(t().cloneNode(id), t().identifier("default"))]);
+    exportDeclaration.insertAfter(updatedExportDeclaration);
+    exportDeclaration.replaceWith(updatedDeclaration);
+
+    if (needBindingRegistration) {
+      scope.registerBinding(isClassDeclaration ? "let" : "var", exportDeclaration);
+    }
+
+    return exportDeclaration;
+  }
+
+  if (exportDeclaration.get("specifiers").length > 0) {
+    throw new Error("It doesn't make sense to split exported specifiers.");
+  }
+
+  var bindingIdentifiers = declaration.getOuterBindingIdentifiers();
+  var specifiers = Object.keys(bindingIdentifiers).map(function (name) {
+    return t().exportSpecifier(t().identifier(name), t().identifier(name));
+  });
+  var aliasDeclar = t().exportNamedDeclaration(null, specifiers);
+  exportDeclaration.insertAfter(aliasDeclar);
+  exportDeclaration.replaceWith(declaration.node);
+  return exportDeclaration;
+}