From 26e89f2bf638b24ef77b7c53bf130f0679057a91 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Hu=C3=A1ng=20J=C3=B9nli=C3=A0ng?= <jlhwung@gmail.com>
Date: Fri, 11 Feb 2022 15:45:11 -0500
Subject: [PATCH] apply #14240 fix

---
 .../src/util.ts                                | 18 +++++++++++++++++-
 1 file changed, 17 insertions(+), 1 deletion(-)

diff --git a/packages/babel-plugin-transform-destructuring/src/util.ts b/packages/babel-plugin-transform-destructuring/src/util.ts
index 597055091e4a..60b295efcd67 100644
--- a/packages/babel-plugin-transform-destructuring/src/util.ts
+++ b/packages/babel-plugin-transform-destructuring/src/util.ts
@@ -122,8 +122,16 @@ export class DestructuringTransformer {
         ),
       );
     } else {
+      let nodeInit: t.Expression;
+
+      if (this.kind === "const" && init === null) {
+        nodeInit = this.scope.buildUndefinedNode();
+      } else {
+        nodeInit = t.cloneNode(init);
+      }
+
       node = t.variableDeclaration(this.kind, [
-        t.variableDeclarator(id, t.cloneNode(init)),
+        t.variableDeclarator(id, nodeInit),
       ]);
     }
 
@@ -170,6 +178,14 @@ export class DestructuringTransformer {
     { left, right }: t.AssignmentPattern,
     valueRef: t.Expression,
   ) {
+    // handle array init hole
+    // const [x = 42] = [,];
+    // -> const x = 42;
+    if (valueRef === null) {
+      this.nodes.push(this.buildVariableAssignment(left, right));
+      return;
+    }
+
     // we need to assign the current value of the assignment to avoid evaluating
     // it more than once
     const tempId = this.scope.generateUidIdentifierBasedOnNode(valueRef);