From 2ca88a0069969bf115da6f0ea9f2fbbae9c9226c Mon Sep 17 00:00:00 2001
From: Anupriya Verma <54227869+anupriya13@users.noreply.github.com>
Date: Wed, 9 Jul 2025 05:05:52 -0700
Subject: [PATCH] 'return': conversion from 'int' to 'uint8_t', possible loss
 of data in CSSHexColor (#52496)

Summary:
Resolves https://github.com/microsoft/react-native-windows/issues/14666
We faced this issue while integrating [0.79.0-nightly-20250220-41b597c73](https://github.com/microsoft/react-native-windows/pull/14662/files#top)

This warning is treated as error and should be fixed here as well.

## Changelog:

<!-- Help reviewers and the release process by writing your own changelog entry.

Pick one each for the category and type tags:

[GENERAL] [FIXED] - Message

For more details, see:
https://reactnative.dev/contributing/changelogs-in-pull-requests

Pull Request resolved: https://github.com/facebook/react-native/pull/52496

Test Plan:
Fixed error:
##[error]node_modules\react-native\ReactCommon\react\renderer\css\CSSHexColor.h(39,12): Error C4244: 'return': conversion from 'int' to 'uint8_t', possible loss of data
2>D:\a_work\1\s\node_modules\react-native\ReactCommon\react\renderer\css\CSSHexColor.h(39,12): error C4244: 'return': conversion from 'int' to 'uint8_t', possible loss of data [D:\a_work\1\s\vnext\Microsoft.ReactNative\Microsoft.ReactNative.vcxproj]
(compiling source file '../../node_modules/react-native/ReactCommon/react/renderer/components/view/BaseViewProps.cpp')

Tested E2E in RNW

Reviewed By: javache

Differential Revision: D78000818

Pulled By: rshest

fbshipit-source-id: 5caafc5e92540f722b009480f030276e526355af
---
 .../react-native/ReactCommon/react/renderer/css/CSSHexColor.h | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/packages/react-native/ReactCommon/react/renderer/css/CSSHexColor.h b/packages/react-native/ReactCommon/react/renderer/css/CSSHexColor.h
index 2a1268c4fe5..8caf1ec13a0 100644
--- a/packages/react-native/ReactCommon/react/renderer/css/CSSHexColor.h
+++ b/packages/react-native/ReactCommon/react/renderer/css/CSSHexColor.h
@@ -34,9 +34,9 @@ constexpr uint8_t hexToNumeric(std::string_view hex, HexColorType hexType) {
   }
 
   if (hexType == HexColorType::Short) {
-    return result * 16 + result;
+    return static_cast<uint8_t>(result * 16 + result);
   } else {
-    return result;
+    return static_cast<uint8_t>(result);
   }
 }