[Fix] displayName: avoid a crash when using React.memo

jsx-eslint · Feb 29, 2020 · 185d95c · 185d95c
1 parent e2ed536
commit 185d95c
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Showing 2 changed files with 11 additions and 1 deletion.
diff --git a/lib/util/Components.js b/lib/util/Components.js
@@ -483,7 +483,9 @@ function componentRule(rule, context) {
       }
       if (body.type === 'BlockStatement') {
         const jsxElement = body.body.find(item => item.type === 'ReturnStatement');
-        return jsxElement && this.getComponentNameFromJSXElement(jsxElement.argument);
+        return jsxElement &&
+          jsxElement.argument &&
+          this.getComponentNameFromJSXElement(jsxElement.argument);
       }
       return null;
     },

diff --git a/tests/lib/rules/display-name.js b/tests/lib/rules/display-name.js
@@ -463,6 +463,14 @@ ruleTester.run('display-name', rule, {
         return <div>Hello {world}</div>
       })
     `
+  }, {
+    code: `
+      import React from 'react';
+
+      const Hello = React.memo(function Hello() {
+        return;
+      });
+    `
   }, {
     code: `
       import React from 'react'