From 8772e7fb898f76196c38598fc33e45c738100010 Mon Sep 17 00:00:00 2001
From: Bo Lingen <lingenbw@gmail.com>
Date: Mon, 22 May 2017 19:24:19 -0500
Subject: [PATCH] Fix ObjectProperty patterns (#5762)

* Fix Object Property values to allow Patterns

* Add RestElement to allowed types

* add tests for nested pattern structures
---
 packages/babel-types/src/definitions/core.js |  2 +-
 packages/babel-types/test/validators.js      | 24 ++++++++++++++++++++
 2 files changed, 25 insertions(+), 1 deletion(-)

diff --git a/packages/babel-types/src/definitions/core.js b/packages/babel-types/src/definitions/core.js
index 1e206ac50e..d86cc05c20 100644
--- a/packages/babel-types/src/definitions/core.js
+++ b/packages/babel-types/src/definitions/core.js
@@ -526,7 +526,7 @@ defineType("ObjectProperty", {
       },
     },
     value: {
-      validate: assertNodeType("Expression"),
+      validate: assertNodeType("Expression", "Pattern", "RestElement"),
     },
     shorthand: {
       validate: assertValueType("boolean"),
diff --git a/packages/babel-types/test/validators.js b/packages/babel-types/test/validators.js
index ccc83f665b..8ad737b00b 100644
--- a/packages/babel-types/test/validators.js
+++ b/packages/babel-types/test/validators.js
@@ -31,4 +31,28 @@ suite("validators", function () {
       assert(t.isValidIdentifier("await") === false);
     });
   });
+
+  suite("patterns", function () {
+    it("allows nested pattern structures", function () {
+      const pattern = t.objectPattern([
+        t.objectProperty(
+          t.identifier("a"),
+          t.objectPattern([
+            t.objectProperty(
+              t.identifier("b"),
+              t.stringLiteral("foo")
+            ),
+            t.objectProperty(
+              t.identifier("c"),
+              t.arrayPattern([
+                t.identifier("value"),
+              ])
+            ),
+          ])
+        ),
+      ]);
+
+      assert(t.isNodesEquivalent(pattern, pattern) === true);
+    });
+  });
 });