From 5cd367e50209244b4e283163f9ca7691866b3598 Mon Sep 17 00:00:00 2001
From: Ika <ikatyang@gmail.com>
Date: Sat, 15 Sep 2018 21:45:43 +0800
Subject: [PATCH] fix(typescript): no invalid parens for destructuring with
 default value (#5096)

---
 src/language-js/needs-parens.js                   | 2 ++
 tests/assignment/__snapshots__/jsfmt.spec.js.snap | 4 ++++
 tests/assignment/destructuring.js                 | 2 ++
 3 files changed, 8 insertions(+)

diff --git a/src/language-js/needs-parens.js b/src/language-js/needs-parens.js
index f1b862112..1b6928d9f 100644
--- a/src/language-js/needs-parens.js
+++ b/src/language-js/needs-parens.js
@@ -487,6 +487,8 @@ function needsParens(path, options) {
         (grandParent.init === parent || grandParent.update === parent)
       ) {
         return false;
+      } else if (parent.type === "Property" && parent.value === node) {
+        return false;
       }
       return true;
     }
diff --git a/tests/assignment/__snapshots__/jsfmt.spec.js.snap b/tests/assignment/__snapshots__/jsfmt.spec.js.snap
index 2fc5bda58..c09976a42 100644
--- a/tests/assignment/__snapshots__/jsfmt.spec.js.snap
+++ b/tests/assignment/__snapshots__/jsfmt.spec.js.snap
@@ -31,6 +31,8 @@ let {
 
 const { accessibilityModule: FooAccessibilityModule, accessibilityModule: FooAccessibilityModule, accessibilityModule: FooAccessibilityModule, accessibilityModule: FooAccessibilityModule,
       } = foo || {};
+
+({ prop: toAssign = "default" } = { prop: "propval" });
 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 let {
   bottom: offsetBottom,
@@ -46,6 +48,8 @@ const {
   accessibilityModule: FooAccessibilityModule
 } = foo || {};
 
+({ prop: toAssign = "default" } = { prop: "propval" });
+
 `;
 
 exports[`sequence.js - flow-verify 1`] = `
diff --git a/tests/assignment/destructuring.js b/tests/assignment/destructuring.js
index c53876006..b3168f0ac 100644
--- a/tests/assignment/destructuring.js
+++ b/tests/assignment/destructuring.js
@@ -7,3 +7,5 @@ let {
 
 const { accessibilityModule: FooAccessibilityModule, accessibilityModule: FooAccessibilityModule, accessibilityModule: FooAccessibilityModule, accessibilityModule: FooAccessibilityModule,
       } = foo || {};
+
+({ prop: toAssign = "default" } = { prop: "propval" });