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frontend/webapp/node_modules/eslint-plugin-react/lib/rules/no-this-in-sfc.js

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+/**
+ * @fileoverview Report "this" being used in stateless functional components.
+ */
+
+'use strict';
+
+const Components = require('../util/Components');
+const docsUrl = require('../util/docsUrl');
+const report = require('../util/report');
+
+// ------------------------------------------------------------------------------
+// Rule Definition
+// ------------------------------------------------------------------------------
+
+const messages = {
+  noThisInSFC: 'Stateless functional components should not use `this`',
+};
+
+/** @type {import('eslint').Rule.RuleModule} */
+module.exports = {
+  meta: {
+    docs: {
+      description: 'Disallow `this` from being used in stateless functional components',
+      category: 'Possible Errors',
+      recommended: false,
+      url: docsUrl('no-this-in-sfc'),
+    },
+
+    messages,
+
+    schema: [],
+  },
+
+  create: Components.detect((context, components, utils) => ({
+    MemberExpression(node) {
+      if (node.object.type === 'ThisExpression') {
+        const component = components.get(utils.getParentStatelessComponent(node));
+        if (!component || (component.node && component.node.parent && component.node.parent.type === 'Property')) {
+          return;
+        }
+        report(context, messages.noThisInSFC, 'noThisInSFC', {
+          node,
+        });
+      }
+    },
+  })),
+};