From 372987e2314862a6f85a66f54daddf55c45becb6 Mon Sep 17 00:00:00 2001
From: shinyaigeek <philispaxil@gmail.com>
Date: Mon, 6 Sep 2021 23:33:51 +0900
Subject: [PATCH] [fix] handle AssignmentPattern with ObjectPattern in
 rewrite_identifier

---
 src/compiler/compile/Component.ts                     |  6 +++++-
 .../_config.js                                        |  6 ++++++
 .../main.svelte                                       | 11 +++++++++++
 3 files changed, 22 insertions(+), 1 deletion(-)
 create mode 100644 test/runtime/samples/destructured-assignment-pattern-with-object-pattern/_config.js
 create mode 100644 test/runtime/samples/destructured-assignment-pattern-with-object-pattern/main.svelte

diff --git a/src/compiler/compile/Component.ts b/src/compiler/compile/Component.ts
index 5c83d1f346ad..202e14fd9813 100644
--- a/src/compiler/compile/Component.ts
+++ b/src/compiler/compile/Component.ts
@@ -1044,7 +1044,11 @@ export default class Component {
 											break;
 
 										case 'AssignmentPattern':
-											param.left = get_new_name(param.left);
+											if (param.left.type === 'Identifier') {
+												param.left = get_new_name(param.left);
+											} else {
+												rename_identifiers(param.left);
+											}
 											break;
 									}
 								}
diff --git a/test/runtime/samples/destructured-assignment-pattern-with-object-pattern/_config.js b/test/runtime/samples/destructured-assignment-pattern-with-object-pattern/_config.js
new file mode 100644
index 000000000000..75025e461407
--- /dev/null
+++ b/test/runtime/samples/destructured-assignment-pattern-with-object-pattern/_config.js
@@ -0,0 +1,6 @@
+export default {
+	html: `
+		<div>hello undefined</div>
+		<div>hello bar2</div>
+	`
+};
diff --git a/test/runtime/samples/destructured-assignment-pattern-with-object-pattern/main.svelte b/test/runtime/samples/destructured-assignment-pattern-with-object-pattern/main.svelte
new file mode 100644
index 000000000000..b71b25bd6750
--- /dev/null
+++ b/test/runtime/samples/destructured-assignment-pattern-with-object-pattern/main.svelte
@@ -0,0 +1,11 @@
+<script>
+	const hoge = {};
+	const { foo: { bar } = {} } = hoge;
+
+
+	const hoge2 = {};
+	const { foo2: { bar2 } = { bar2: "bar2" } } = hoge2;
+</script>
+
+<div>hello {bar}</div>
+<div>hello {bar2}</div>