From 19f21936838a28d1440fe1d84c6d32b33827d39e Mon Sep 17 00:00:00 2001
From: Ronen Amiel <ronen.amiel@gmail.com>
Date: Wed, 26 Mar 2025 23:54:22 +0200
Subject: [PATCH] check alias chain for deprecated properties

---
 .../eslint-plugin/src/rules/no-deprecated.ts  |  1 +
 .../tests/rules/no-deprecated.test.ts         | 19 +++++++++++++++++++
 2 files changed, 20 insertions(+)

diff --git a/packages/eslint-plugin/src/rules/no-deprecated.ts b/packages/eslint-plugin/src/rules/no-deprecated.ts
index 94d7a5ed7262..fb426747edd2 100644
--- a/packages/eslint-plugin/src/rules/no-deprecated.ts
+++ b/packages/eslint-plugin/src/rules/no-deprecated.ts
@@ -351,6 +351,7 @@ export default createRule<Options, MessageIds>({
           propertySymbol?.valueDeclaration,
         );
         return (
+          searchForDeprecationInAliasesChain(propertySymbol, true) ??
           getJsDocDeprecation(property) ??
           getJsDocDeprecation(propertySymbol) ??
           getJsDocDeprecation(valueSymbol)
diff --git a/packages/eslint-plugin/tests/rules/no-deprecated.test.ts b/packages/eslint-plugin/tests/rules/no-deprecated.test.ts
index 6469c0fe5c23..43ea34aa5471 100644
--- a/packages/eslint-plugin/tests/rules/no-deprecated.test.ts
+++ b/packages/eslint-plugin/tests/rules/no-deprecated.test.ts
@@ -2073,6 +2073,25 @@ exists('/foo');
         },
       ],
     },
+    {
+      code: `
+        import { deprecatedVariable } from './deprecated';
+
+        const test = {
+          someField: deprecatedVariable,
+        };
+      `,
+      errors: [
+        {
+          column: 22,
+          data: { name: 'deprecatedVariable' },
+          endColumn: 40,
+          endLine: 5,
+          line: 5,
+          messageId: 'deprecated',
+        },
+      ],
+    },
     {
       code: `
         import { normalFunction } from './deprecated';