From 5952a729df3e2724e2209e3fa005c1d3a6d6d032 Mon Sep 17 00:00:00 2001
From: Alexandre Boulgakov <sashabu@github.com>
Date: Thu, 8 Jun 2023 13:10:43 +0100
Subject: [PATCH] Build: Bump build mode to C++20.

---
 .bazelrc                               | 2 +-
 swift/.clang-format                    | 2 +-
 swift/extractor/infra/file/BUILD.bazel | 2 +-
 3 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/.bazelrc b/.bazelrc
index a304a7b0e1a2..e0ab5a343357 100644
--- a/.bazelrc
+++ b/.bazelrc
@@ -1,3 +1,3 @@
-build --repo_env=CC=clang --repo_env=CXX=clang++ --cxxopt="-std=c++17"
+build --repo_env=CC=clang --repo_env=CXX=clang++ --cxxopt="-std=c++20"
 
 try-import %workspace%/local.bazelrc
diff --git a/swift/.clang-format b/swift/.clang-format
index 96d2febc1c2c..ca0a3afd986d 100644
--- a/swift/.clang-format
+++ b/swift/.clang-format
@@ -4,4 +4,4 @@ IndentWidth: 2
 SortIncludes: false
 AllowShortIfStatementsOnASingleLine: WithoutElse
 AlwaysBreakBeforeMultilineStrings: false
-Standard: c++17
+Standard: c++20
diff --git a/swift/extractor/infra/file/BUILD.bazel b/swift/extractor/infra/file/BUILD.bazel
index 65cfea339950..d14a28ce622b 100644
--- a/swift/extractor/infra/file/BUILD.bazel
+++ b/swift/extractor/infra/file/BUILD.bazel
@@ -24,7 +24,7 @@ genrule(
     # see if https://cplusplus.github.io/LWG/issue3657 is fixed with the current compiler or not
     # if fixed, PathHash.h.workaround will not compile
     cmd = "\n".join([
-        "if clang -c -x c++ -std=c++17 -Wno-pragma-once-outside-header \\",
+        "if clang -c -x c++ -std=c++20 -Wno-pragma-once-outside-header \\",
         "    $(rootpath PathHash.h.workaround) -o /dev/null &> /dev/null; then",
         "  cp $(rootpath PathHash.h.workaround) $@",
         "else",