[Fix] no-typos: avoid crash with computed method name

Fixes #2870

Author: ljharb

CHANGELOG.md

@@ -14,9 +14,11 @@ This change log adheres to standards from [Keep a CHANGELOG](http://keepachangel
 * [`display-name`]/component detection: avoid a crash on anonymous components ([#2840][] @ljharb)
 * [`prop-types`]: function in class that returns a component causes false warning in typescript ([#2843][] @SyMind)
 * [`jsx-no-target-blank`]: avoid a crash with a non-string literal ([#2851][] @ljharb)
-* [`jsx-no-script-url`]: avoid crash with boolean `href` ([#2871][] @ljharb)
+* [`jsx-no-script-url`]: avoid crash with boolean `href` ([#2871][] @ljharb, @AriPerkkio)
+* [`no-typos`]: avoid crash with computed method name ([#2870][] @ljharb, @AriPerkkio)
 
 [#2871]: https://github.com/yannickcr/eslint-plugin-react/issues/2871
+[#2870]: https://github.com/yannickcr/eslint-plugin-react/issues/2870
 [#2851]: https://github.com/yannickcr/eslint-plugin-react/issues/2851
 [#2843]: https://github.com/yannickcr/eslint-plugin-react/pull/2843
 [#2840]: https://github.com/yannickcr/eslint-plugin-react/issues/2840

lib/rules/no-typos.js

@@ -150,6 +150,9 @@ module.exports = {
       if (node.key.type === 'Literal') {
         nodeKeyName = node.key.value;
       }
+      if (node.computed && typeof nodeKeyName !== 'string') {
+        return;
+      }
 
       STATIC_LIFECYCLE_METHODS.forEach((method) => {
         if (!node.static && nodeKeyName.toLowerCase() === method.toLowerCase()) {

tests/lib/rules/no-typos.js

@@ -634,6 +634,19 @@ ruleTester.run('no-typos', rule, {
       };
     `,
     parserOptions
+  }, {
+    code: `
+      import React from 'react';
+
+      const A = { B: 'C' };
+
+      export default class MyComponent extends React.Component {
+        [A.B] () {
+          return null
+        }
+      }
+    `,
+    parserOptions
   }],
 
   invalid: [{