From 07bbe02f6789fc806af603220a991357c09539ec Mon Sep 17 00:00:00 2001
From: Remco Haszing <remcohaszing@gmail.com>
Date: Tue, 11 May 2021 22:23:57 +0200
Subject: [PATCH] [fix] `jsx-no-undef`: ignore namespaces

JSX namespaces are transpiled into strings, not identifiers.
---
 lib/rules/jsx-no-undef.js       | 3 +--
 tests/lib/rules/jsx-no-undef.js | 8 ++------
 2 files changed, 3 insertions(+), 8 deletions(-)

diff --git a/lib/rules/jsx-no-undef.js b/lib/rules/jsx-no-undef.js
index f4e94c4059..939027ddac 100644
--- a/lib/rules/jsx-no-undef.js
+++ b/lib/rules/jsx-no-undef.js
@@ -102,8 +102,7 @@ module.exports = {
             } while (node && node.type !== 'JSXIdentifier');
             break;
           case 'JSXNamespacedName':
-            node = node.name.namespace;
-            break;
+            return;
           default:
             break;
         }
diff --git a/tests/lib/rules/jsx-no-undef.js b/tests/lib/rules/jsx-no-undef.js
index e2bcb30abb..40f498befd 100644
--- a/tests/lib/rules/jsx-no-undef.js
+++ b/tests/lib/rules/jsx-no-undef.js
@@ -45,6 +45,8 @@ ruleTester.run('jsx-no-undef', rule, {
     code: '/*eslint no-undef:1*/ var React, app; React.render(<app.Foo />);'
   }, {
     code: '/*eslint no-undef:1*/ var React, app; React.render(<app.foo.Bar />);'
+  }, {
+    code: '/*eslint no-undef:1*/ var React; React.render(<Apppp:Foo />);'
   }, {
     code: `
       /*eslint no-undef:1*/
@@ -87,12 +89,6 @@ ruleTester.run('jsx-no-undef', rule, {
       messageId: 'undefined',
       data: {identifier: 'Appp'}
     }]
-  }, {
-    code: '/*eslint no-undef:1*/ var React; React.render(<Apppp:Foo />);',
-    errors: [{
-      messageId: 'undefined',
-      data: {identifier: 'Apppp'}
-    }]
   }, {
     code: '/*eslint no-undef:1*/ var React; React.render(<appp.Foo />);',
     errors: [{