Disallow duplicated AST nodes (#11807)

2020-07-14 09:32:16 -04:00
parent ffb42488ba
commit 5dd64ecc4a
24 changed files with 85 additions and 62 deletions
--- a/packages/babel-helper-module-transforms/src/rewrite-live-references.js
+++ b/packages/babel-helper-module-transforms/src/rewrite-live-references.js
@@ -337,7 +337,9 @@ const rewriteReferencesVisitor = {
      path
        .get("left")
        .replaceWith(
-          t.variableDeclaration("let", [t.variableDeclarator(newLoopId)]),
+          t.variableDeclaration("let", [
+            t.variableDeclarator(t.cloneNode(newLoopId)),
+          ]),
        );
      scope.registerDeclaration(path.get("left"));
    }