[PATCH] D138371: [clang-format] Fix a crash due to dereferencing null MatchingParen

[Owen Pan via Phabricator via cfe-commits]

This revision was landed with ongoing or failed builds.
This revision was automatically updated to reflect the committed changes.
Closed by commit rG4daeb8c73354: [clang-format] Fix a crash due to dereferencing null MatchingParen (authored by owenpan).

Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D138371/new/

https://reviews.llvm.org/D138371

Files:
  clang/lib/Format/TokenAnnotator.cpp
  clang/unittests/Format/FormatTest.cpp


Index: clang/unittests/Format/FormatTest.cpp
===================================================================
--- clang/unittests/Format/FormatTest.cpp
+++ clang/unittests/Format/FormatTest.cpp
@@ -25017,6 +25017,8 @@
                "}",
                Style);
 
+  verifyIncompleteFormat("class C final [[deprecated(l]] {});", Style);
+
   // These tests are here to show a problem that may not be easily
   // solved, our implementation to remove semicolons is only as good
   // as our FunctionLBrace detection and this fails for empty braces
Index: clang/lib/Format/TokenAnnotator.cpp
===================================================================
--- clang/lib/Format/TokenAnnotator.cpp
+++ clang/lib/Format/TokenAnnotator.cpp
@@ -2851,6 +2851,8 @@
           return false;
       } else if (isCppAttribute(IsCpp, *Next)) {
         Next = Next->MatchingParen;
+        if (!Next)
+          return false;
       } else if (Next->is(tok::l_paren)) {
         break;
       } else {


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