From ab62a9439918edf97eeea730a444a622542696ff Mon Sep 17 00:00:00 2001
From: Peter Leonov <gojpeg@gmail.com>
Date: Thu, 31 May 2018 00:07:56 +0200
Subject: [PATCH] make isReferenced() recognise ObjectTypeProperty (#8060)

fixes #8057
---
 .../src/validators/isReferenced.js            |  5 +++++
 packages/babel-types/test/validators.js       | 19 +++++++++++++++++++
 2 files changed, 24 insertions(+)

diff --git a/packages/babel-types/src/validators/isReferenced.js b/packages/babel-types/src/validators/isReferenced.js
index 4ff3b9a790..07c58cc138 100644
--- a/packages/babel-types/src/validators/isReferenced.js
+++ b/packages/babel-types/src/validators/isReferenced.js
@@ -116,6 +116,11 @@ export default function isReferenced(node: Object, parent: Object): boolean {
     // no: NODE.target
     case "MetaProperty":
       return false;
+
+    // yes: type X = { somePropert: NODE }
+    // no: type X = { NODE: OtherType }
+    case "ObjectTypeProperty":
+      return parent.key !== node;
   }
 
   return true;
diff --git a/packages/babel-types/test/validators.js b/packages/babel-types/test/validators.js
index 3582a71936..aaa02da501 100644
--- a/packages/babel-types/test/validators.js
+++ b/packages/babel-types/test/validators.js
@@ -95,4 +95,23 @@ describe("validators", function() {
       expect(t.isNodesEquivalent(pattern, pattern)).toBe(true);
     });
   });
+
+  describe("isReferenced", function() {
+    it("returns false if node is a key of ObjectTypeProperty", function() {
+      const node = t.identifier("a");
+      const parent = t.objectTypeProperty(node, t.numberTypeAnnotation());
+
+      expect(t.isReferenced(node, parent)).toBe(false);
+    });
+
+    it("returns true if node is a value of ObjectTypeProperty", function() {
+      const node = t.identifier("a");
+      const parent = t.objectTypeProperty(
+        t.identifier("someKey"),
+        t.genericTypeAnnotation(node),
+      );
+
+      expect(t.isReferenced(node, parent)).toBe(true);
+    });
+  });
 });