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authorDaniel Jasper <djasper@google.com>2013-03-18 12:50:26 +0000
committerDaniel Jasper <djasper@google.com>2013-03-18 12:50:26 +0000
commitcf6d76af806f7e1ba97be7b72b31bc78b919e0f0 (patch)
tree172dbf476793ffd92656ff07ffee9a625c7efe0b
parent74c8b794be93e73ffca42b1dcf70f26c92d9ccfd (diff)
Fix clang-format segfault.
When annotating "lines" starting with ":", clang-format would segfault. This could actually happen in valid code, e.g. #define A : git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@177283 91177308-0d34-0410-b5e6-96231b3b80d8
-rw-r--r--lib/Format/TokenAnnotator.cpp2
-rw-r--r--unittests/Format/FormatTest.cpp2
2 files changed, 4 insertions, 0 deletions
diff --git a/lib/Format/TokenAnnotator.cpp b/lib/Format/TokenAnnotator.cpp
index 8267a25d03..4ac4c9b1b8 100644
--- a/lib/Format/TokenAnnotator.cpp
+++ b/lib/Format/TokenAnnotator.cpp
@@ -319,6 +319,8 @@ private:
Tok->Type = TT_ObjCMethodSpecifier;
break;
case tok::colon:
+ if (Tok->Parent == NULL)
+ return false;
// Colons from ?: are handled in parseConditional().
if (Tok->Parent->is(tok::r_paren) && Contexts.size() == 1) {
Tok->Type = TT_CtorInitializerColon;
diff --git a/unittests/Format/FormatTest.cpp b/unittests/Format/FormatTest.cpp
index 4ac9bce56b..e6ae81da5c 100644
--- a/unittests/Format/FormatTest.cpp
+++ b/unittests/Format/FormatTest.cpp
@@ -1068,6 +1068,8 @@ TEST_F(FormatTest, EmptyLinesInMacroDefinitions) {
}
TEST_F(FormatTest, MacroDefinitionsWithIncompleteCode) {
+ verifyFormat("#define A :");
+
// FIXME: Improve formatting of case labels in macros.
verifyFormat("#define SOMECASES \\\n"
"case 1: \\\n"