https://github.com/amane-ame updated
https://github.com/llvm/llvm-project/pull/119428
From 3a4c1a924faef3a7a09126694fcb943bd7083451 Mon Sep 17 00:00:00 2001
From: amane-ame <i...@amane-a.me>
Date: Wed, 11 Dec 2024 02:13:43 +0800
Subject: [PATCH] Fix crashes when the macro expansion is empty
---
clang/lib/Format/MacroExpander.cpp | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/clang/lib/Format/MacroExpander.cpp
b/clang/lib/Format/MacroExpander.cpp
index fd2a16894d643d..ed9e51dfbfef1f 100644
--- a/clang/lib/Format/MacroExpander.cpp
+++ b/clang/lib/Format/MacroExpander.cpp
@@ -233,6 +233,10 @@ MacroExpander::expand(FormatToken *ID,
if (Result.size() > 1) {
++Result[0]->MacroCtx->StartOfExpansion;
++Result[Result.size() - 2]->MacroCtx->EndOfExpansion;
+ } else {
+ // If the macro expansion is empty, mark the start and end
+ Result[0]->MacroCtx->StartOfExpansion = 1;
+ Result[0]->MacroCtx->EndOfExpansion = 1;
}
return Result;
}
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