From ca096c56aa1196e00ecca06af952d9a3d480d999 Mon Sep 17 00:00:00 2001
From: Zen <843968788@qq.com>
Date: Tue, 7 Apr 2020 23:10:21 +0800
Subject: [PATCH] =?UTF-8?q?fix=20Incorrect=20destructuring=20compilation?=
 =?UTF-8?q?=20of=20`for=20(let=20[[x]=20=3D=20[1=E2=80=A6=20(#11360)?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 packages/babel-plugin-transform-destructuring/src/index.js      | 2 +-
 .../test/fixtures/destructuring/for-let-nest/input.js           | 2 ++
 .../test/fixtures/destructuring/for-let-nest/output.js          | 1 +
 3 files changed, 4 insertions(+), 1 deletion(-)
 create mode 100644 packages/babel-plugin-transform-destructuring/test/fixtures/destructuring/for-let-nest/input.js
 create mode 100644 packages/babel-plugin-transform-destructuring/test/fixtures/destructuring/for-let-nest/output.js

diff --git a/packages/babel-plugin-transform-destructuring/src/index.js b/packages/babel-plugin-transform-destructuring/src/index.js
index 714e5f5afb..cc60ebd458 100644
--- a/packages/babel-plugin-transform-destructuring/src/index.js
+++ b/packages/babel-plugin-transform-destructuring/src/index.js
@@ -166,7 +166,7 @@ export default declare((api, options) => {
         let patternId;
         let node;
 
-        if (this.kind === "const") {
+        if (this.kind === "const" || this.kind === "let") {
           patternId = this.scope.generateUidIdentifier(tempId.name);
           node = this.buildVariableDeclaration(patternId, tempConditional);
         } else {
diff --git a/packages/babel-plugin-transform-destructuring/test/fixtures/destructuring/for-let-nest/input.js b/packages/babel-plugin-transform-destructuring/test/fixtures/destructuring/for-let-nest/input.js
new file mode 100644
index 0000000000..4c54b1e75d
--- /dev/null
+++ b/packages/babel-plugin-transform-destructuring/test/fixtures/destructuring/for-let-nest/input.js
@@ -0,0 +1,2 @@
+for (let [[x] = [1]] = [];  ;  ) {
+}
\ No newline at end of file
diff --git a/packages/babel-plugin-transform-destructuring/test/fixtures/destructuring/for-let-nest/output.js b/packages/babel-plugin-transform-destructuring/test/fixtures/destructuring/for-let-nest/output.js
new file mode 100644
index 0000000000..9c0f8685ef
--- /dev/null
+++ b/packages/babel-plugin-transform-destructuring/test/fixtures/destructuring/for-let-nest/output.js
@@ -0,0 +1 @@
+for (var _ref = [], _ref$ = _ref[0], _ref$2 = _ref$ === void 0 ? [1] : _ref$, _ref$3 = babelHelpers.slicedToArray(_ref$2, 1), x = _ref$3[0];;) {}
\ No newline at end of file