Update

a.js

@@ -1,45 +0,0 @@
-#!/usr/bin/env node
-const fs = require("fs")
-const babel = require("@babel/core")
-
-const code = `
-export class A {
-  #a: string;
-}
-`
-
-const res = babel.transform(code, {
-  filename: "a.ts",
-  presets: [
-    ["@babel/preset-env", { targets: { node: 14 } }],
-    ["@babel/preset-typescript"],
-  ],
-  plugins: [
-    ({ types: t }) => ({
-      visitor: {
-        ClassDeclaration(path, state) {
-          state.a ??= new WeakSet()
-          if (state.a.has(path.node)) {
-            return
-          }
-          state.a.add(path.node)
-
-          path.parentPath.replaceWithMultiple([
-            t.exportNamedDeclaration(
-              t.variableDeclaration("let", [
-                t.variableDeclarator(path.node.id, {
-                  ...path.node,
-                  type: "ClassExpression",
-                }),
-              ]),
-              [],
-              null
-            ),
-          ])
-        },
-      },
-    }),
-  ],
-})
-
-console.log(res.code)

src/index.ts

@@ -53,7 +53,6 @@ export default ({ types: t }: typeof babel): babel.PluginObj<State> => ({
       const suffix: (t.Expression | t.Statement)[] = []
       const classDecorators: t.Expression[] = []
       const prefixes: t.Statement[] = []
-      let replace = true
 
       const classID = path.node.id
 
@@ -67,11 +66,6 @@ export default ({ types: t }: typeof babel): babel.PluginObj<State> => ({
 
       for (const child of path.node.body.body) {
         switch (child.type) {
-          case "ClassPrivateMethod":
-          case "ClassPrivateProperty":
-            replace = false
-            break
-
           case "ClassProperty":
             if (!child.decorators) break
             suffix.push(
@@ -143,11 +137,9 @@ export default ({ types: t }: typeof babel): babel.PluginObj<State> => ({
       let replaceWith: t.Statement | undefined
 
       if (classDecorators.length) {
-        if (replace) {
+        replaceWith = t.variableDeclaration("let", [
-          replaceWith = t.variableDeclaration("let", [
+          t.variableDeclarator(classID, { ...path.node, type: "ClassExpression" }),
-            t.variableDeclarator(classID, { ...path.node, type: "ClassExpression" }),
+        ])
-          ])
-        }
         suffix.push(
           t.assignmentExpression(
             "=",
@@ -158,16 +150,14 @@ export default ({ types: t }: typeof babel): babel.PluginObj<State> => ({
             ])
           )
         )
-        if (replace) {
+        if (isNamedExport) {
-          if (isNamedExport) {
+          suffix.push(
-            suffix.push(
+            t.exportNamedDeclaration(undefined, [t.exportSpecifier(classID, classID)])
-              t.exportNamedDeclaration(undefined, [t.exportSpecifier(classID, classID)])
+          )
-            )
+        } else if (isDefaultExport) {
-          } else if (isDefaultExport) {
+          suffix.push(t.exportDefaultDeclaration(classID))
-            suffix.push(t.exportDefaultDeclaration(classID))
-          }
         }
-      } else if (replace) {
+      } else {
         let node: t.Statement = path.node
         if (isNamedExport) {
           node = t.exportNamedDeclaration(node, [], null)
@@ -183,12 +173,8 @@ export default ({ types: t }: typeof babel): babel.PluginObj<State> => ({
       }
       if (suffix.length) {
         const nodes = suffix.map(s => (t.isStatement(s) ? s : t.expressionStatement(s)))
-        if (replace) {
+        const [newPath] = pathInContext.replaceWith(replaceWith!)
-          const [newPath] = pathInContext.replaceWith(replaceWith!)
+        newPath.insertAfter(nodes)
-          newPath.insertAfter(nodes)
-        } else {
-          pathInContext.insertAfter(nodes)
-        }
       }
     },
   },

test/snapshots/privateProperties/.babelrc

@@ -1,3 +0,0 @@
-{
-  "presets": [["@babel/preset-env", { "targets": { "node": 14 } }]]
-}

test/snapshots/privateProperties/output.txt

@@ -1,24 +1,6 @@
-"use strict";
+import { __decorate } from "tslib";
-
+let B = class B {
-Object.defineProperty(exports, "__esModule", {
+  #remote: Service;
-  value: true
+};
-});
+B = __decorate([Service()], B);
-exports.B = void 0;
+export { B };
-
-var _tslib = require("tslib");
-
-var _remote = /*#__PURE__*/new WeakMap();
-
-exports.B = B = (0, _tslib.__decorate)([Service()], B);
-
-class B {
-  constructor() {
-    _remote.set(this, {
-      writable: true,
-      value: void 0
-    });
-  }
-
-}
-
-exports.B = B;