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[clang-format] Fix a crash on C# goto case #113056

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Merged
merged 1 commit into from
Oct 22, 2024
Merged

[clang-format] Fix a crash on C# goto case #113056

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2 changes: 1 addition & 1 deletion clang/lib/Format/UnwrappedLineParser.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -2148,7 +2148,7 @@ bool UnwrappedLineParser::tryToParsePropertyAccessor() {
if (!Style.isCSharp())
return false;
// See if it's a property accessor.
if (FormatTok->Previous->isNot(tok::identifier))
if (!FormatTok->Previous || FormatTok->Previous->isNot(tok::identifier))
return false;

// See if we are inside a property accessor.
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12 changes: 12 additions & 0 deletions clang/unittests/Format/FormatTestCSharp.cpp
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Expand Up @@ -1688,6 +1688,18 @@ TEST_F(FormatTestCSharp, BrokenBrackets) {
EXPECT_NE("", format("int where b <")); // reduced from crasher
}

TEST_F(FormatTestCSharp, GotoCaseLabel) {
verifyNoCrash("switch (i) {\n"
"case 0:\n"
" goto case 1;\n"
"case 1:\n"
" j = 0;\n"
" {\n"
" break;\n"
" }\n"
"}");
}

} // namespace
} // namespace test
} // namespace format
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