update

node_modules/@babel/plugin-proposal-async-generator-functions/lib/for-await.js

@@ -9,26 +9,22 @@ var _core = require("@babel/core");
 
 const buildForAwait = (0, _core.template)(`
   async function wrapper() {
-    var ITERATOR_COMPLETION = true;
+    var ITERATOR_ABRUPT_COMPLETION = false;
     var ITERATOR_HAD_ERROR_KEY = false;
     var ITERATOR_ERROR_KEY;
     try {
       for (
-        var ITERATOR_KEY = GET_ITERATOR(OBJECT), STEP_KEY, STEP_VALUE;
-        (
-          STEP_KEY = await ITERATOR_KEY.next(),
-          ITERATOR_COMPLETION = STEP_KEY.done,
-          STEP_VALUE = await STEP_KEY.value,
-          !ITERATOR_COMPLETION
-        );
-        ITERATOR_COMPLETION = true) {
+        var ITERATOR_KEY = GET_ITERATOR(OBJECT), STEP_KEY;
+        ITERATOR_ABRUPT_COMPLETION = !(STEP_KEY = await ITERATOR_KEY.next()).done;
+        ITERATOR_ABRUPT_COMPLETION = false
+      ) {
       }
     } catch (err) {
       ITERATOR_HAD_ERROR_KEY = true;
       ITERATOR_ERROR_KEY = err;
     } finally {
       try {
-        if (!ITERATOR_COMPLETION && ITERATOR_KEY.return != null) {
+        if (ITERATOR_ABRUPT_COMPLETION && ITERATOR_KEY.return != null) {
           await ITERATOR_KEY.return();
         }
       } finally {
@@ -49,7 +45,9 @@ function _default(path, {
     parent
   } = path;
   const stepKey = scope.generateUidIdentifier("step");
-  const stepValue = scope.generateUidIdentifier("value");
+
+  const stepValue = _core.types.memberExpression(stepKey, _core.types.identifier("value"));
+
   const left = node.left;
   let declar;
 
@@ -61,13 +59,12 @@ function _default(path, {
 
   let template = buildForAwait({
     ITERATOR_HAD_ERROR_KEY: scope.generateUidIdentifier("didIteratorError"),
-    ITERATOR_COMPLETION: scope.generateUidIdentifier("iteratorNormalCompletion"),
+    ITERATOR_ABRUPT_COMPLETION: scope.generateUidIdentifier("iteratorAbruptCompletion"),
     ITERATOR_ERROR_KEY: scope.generateUidIdentifier("iteratorError"),
     ITERATOR_KEY: scope.generateUidIdentifier("iterator"),
     GET_ITERATOR: getAsyncIterator,
     OBJECT: node.right,
-    STEP_VALUE: stepValue,
-    STEP_KEY: stepKey
+    STEP_KEY: _core.types.cloneNode(stepKey)
   });
   template = template.body.body;
 

node_modules/@babel/plugin-proposal-async-generator-functions/lib/index.js

@@ -7,20 +7,21 @@ exports.default = void 0;
 
 var _helperPluginUtils = require("@babel/helper-plugin-utils");
 
-var _helperRemapAsyncToGenerator = _interopRequireDefault(require("@babel/helper-remap-async-to-generator"));
+var _helperRemapAsyncToGenerator = require("@babel/helper-remap-async-to-generator");
 
-var _pluginSyntaxAsyncGenerators = _interopRequireDefault(require("@babel/plugin-syntax-async-generators"));
+var _pluginSyntaxAsyncGenerators = require("@babel/plugin-syntax-async-generators");
 
 var _core = require("@babel/core");
 
-var _forAwait = _interopRequireDefault(require("./for-await"));
+var _forAwait = require("./for-await");
 
-function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
+var _helperEnvironmentVisitor = require("@babel/helper-environment-visitor");
 
 var _default = (0, _helperPluginUtils.declare)(api => {
   api.assertVersion(7);
-  const yieldStarVisitor = {
-    Function(path) {
+
+  const yieldStarVisitor = _core.traverse.visitors.merge([{
+    ArrowFunctionExpression(path) {
       path.skip();
     },
 
@@ -32,9 +33,10 @@ var _default = (0, _helperPluginUtils.declare)(api => {
       node.argument = _core.types.callExpression(callee, [_core.types.callExpression(state.addHelper("asyncIterator"), [node.argument]), state.addHelper("awaitAsyncGenerator")]);
     }
 
-  };
-  const forAwaitVisitor = {
-    Function(path) {
+  }, _helperEnvironmentVisitor.default]);
+
+  const forAwaitVisitor = _core.traverse.visitors.merge([{
+    ArrowFunctionExpression(path) {
       path.skip();
     },
 
@@ -59,7 +61,7 @@ var _default = (0, _helperPluginUtils.declare)(api => {
         block.body.push(declar);
       }
 
-      block.body = block.body.concat(node.body.body);
+      block.body.push(...path.node.body.body);
 
       _core.types.inherits(loop, node);
 
@@ -72,7 +74,8 @@ var _default = (0, _helperPluginUtils.declare)(api => {
       }
     }
 
-  };
+  }, _helperEnvironmentVisitor.default]);
+
   const visitor = {
     Function(path, state) {
       if (!path.node.async) return;