[clang] [clang-format] Handle bit-field colon of non-numeric-constant size (PR #142110)
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Fri May 30 01:54:47 PDT 2025
llvmbot wrote:
<!--LLVM PR SUMMARY COMMENT-->
@llvm/pr-subscribers-clang-format
Author: Owen Pan (owenca)
<details>
<summary>Changes</summary>
Fix #<!-- -->142050
---
Full diff: https://github.com/llvm/llvm-project/pull/142110.diff
2 Files Affected:
- (modified) clang/lib/Format/TokenAnnotator.cpp (+3-1)
- (modified) clang/unittests/Format/TokenAnnotatorTest.cpp (+8)
``````````diff
diff --git a/clang/lib/Format/TokenAnnotator.cpp b/clang/lib/Format/TokenAnnotator.cpp
index 51ececc0c0e81..f8272811bbe6c 100644
--- a/clang/lib/Format/TokenAnnotator.cpp
+++ b/clang/lib/Format/TokenAnnotator.cpp
@@ -1411,7 +1411,9 @@ class AnnotatingParser {
assert(Prev);
if (Prev->isPointerOrReference())
Prev->setFinalizedType(TT_PointerOrReference);
- } else if (CurrentToken && CurrentToken->is(tok::numeric_constant)) {
+ } else if ((CurrentToken && CurrentToken->is(tok::numeric_constant)) ||
+ (Prev && Prev->is(TT_StartOfName) && !Scopes.empty() &&
+ Scopes.back() == ST_Class)) {
Tok->setType(TT_BitFieldColon);
} else if (Contexts.size() == 1 &&
!Line.getFirstNonComment()->isOneOf(tok::kw_enum, tok::kw_case,
diff --git a/clang/unittests/Format/TokenAnnotatorTest.cpp b/clang/unittests/Format/TokenAnnotatorTest.cpp
index f39468424a393..1a5ed4b9040c2 100644
--- a/clang/unittests/Format/TokenAnnotatorTest.cpp
+++ b/clang/unittests/Format/TokenAnnotatorTest.cpp
@@ -4076,6 +4076,14 @@ TEST_F(TokenAnnotatorTest, EnumColonInTypedef) {
EXPECT_TOKEN(Tokens[2], tok::colon, TT_Unknown); // Not TT_InheritanceColon.
}
+TEST_F(TokenAnnotatorTest, BitFieldColon) {
+ auto Tokens = annotate("class C {\n"
+ " int f : SIZE;\n"
+ "};");
+ ASSERT_EQ(Tokens.size(), 11u) << Tokens;
+ EXPECT_TOKEN(Tokens[5], tok::colon, TT_BitFieldColon);
+}
+
} // namespace
} // namespace format
} // namespace clang
``````````
</details>
https://github.com/llvm/llvm-project/pull/142110
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