[PATCH] D127183: [clang-format] Skip parsing a block if it's nested too deep

[Owen Pan via Phabricator via cfe-commits]

owenpan updated this revision to Diff 434773.
owenpan added a comment.

Inadvertently moved the added code down when rebasing. Fixed.


CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D127183/new/

https://reviews.llvm.org/D127183

Files:
  clang/lib/Format/UnwrappedLineParser.cpp


Index: clang/lib/Format/UnwrappedLineParser.cpp
===================================================================
--- clang/lib/Format/UnwrappedLineParser.cpp
+++ clang/lib/Format/UnwrappedLineParser.cpp
@@ -842,6 +842,10 @@
   unsigned InitialLevel = Line->Level;
   nextToken(/*LevelDifference=*/AddLevels);
 
+  // Bail out if there are too many levels. Otherwise, the stack might overflow.
+  if (Line->Level > 300)
+    return;
+
   if (MacroBlock && FormatTok->is(tok::l_paren))
     parseParens();
 


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