[clang] [clang-format] Change GNU style language standard to LS_Latest (PR #104669)

[Owen Pan via cfe-commits]

https://github.com/owenca created 
https://github.com/llvm/llvm-project/pull/104669

Fixes #104655.

>From d7c7c0da69864067999ecd9b1621fdbb85d4d365 Mon Sep 17 00:00:00 2001
From: Owen Pan <owenpi...@gmail.com>
Date: Sat, 17 Aug 2024 02:32:19 -0700
Subject: [PATCH] [clang-format] Change GNU style language standard to
 LS_Latest

Fixes #104655.
---
 clang/lib/Format/Format.cpp                   | 1 -
 clang/unittests/Format/TokenAnnotatorTest.cpp | 8 ++++++++
 2 files changed, 8 insertions(+), 1 deletion(-)

diff --git a/clang/lib/Format/Format.cpp b/clang/lib/Format/Format.cpp
index 5358b35c19de25..e8fe17ecee1837 100644
--- a/clang/lib/Format/Format.cpp
+++ b/clang/lib/Format/Format.cpp
@@ -1904,7 +1904,6 @@ FormatStyle getGNUStyle() {
   Style.Cpp11BracedListStyle = false;
   Style.FixNamespaceComments = false;
   Style.SpaceBeforeParens = FormatStyle::SBPO_Always;
-  Style.Standard = FormatStyle::LS_Cpp03;
   return Style;
 }
 
diff --git a/clang/unittests/Format/TokenAnnotatorTest.cpp 
b/clang/unittests/Format/TokenAnnotatorTest.cpp
index 256bbd49c424fa..c40df0794ab9ae 100644
--- a/clang/unittests/Format/TokenAnnotatorTest.cpp
+++ b/clang/unittests/Format/TokenAnnotatorTest.cpp
@@ -3360,6 +3360,14 @@ TEST_F(TokenAnnotatorTest, TypenameMacro) {
   EXPECT_TOKEN(Tokens[6], tok::l_brace, TT_Unknown);
 }
 
+TEST_F(TokenAnnotatorTest, GNULanguageStandard) {
+  auto Style = getGNUStyle();
+  EXPECT_EQ(Style.Standard, FormatStyle::LS_Latest);
+
+  auto Tokens = annotate("return 1 <=> 2;", Style);
+  EXPECT_TOKEN(Tokens[2], tok::spaceship, TT_BinaryOperator);
+}
+
 } // namespace
 } // namespace format
 } // namespace clang

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