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[clang-format] Fix a bug in parsing C-style cast of lambdas #136099

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Merged
merged 2 commits into from
Apr 23, 2025
Merged

[clang-format] Fix a bug in parsing C-style cast of lambdas #136099

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53033b2
[clang-format] Fix a bug in parsing C-style cast lambda
owenca Apr 17, 2025
3dd4a35
Also handle casting to function pointer types
owenca Apr 19, 2025
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3 changes: 2 additions & 1 deletion clang/lib/Format/UnwrappedLineParser.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -2371,7 +2371,8 @@ bool UnwrappedLineParser::tryToParseLambdaIntroducer() {
if ((Previous && ((Previous->Tok.getIdentifierInfo() &&
!Previous->isOneOf(tok::kw_return, tok::kw_co_await,
tok::kw_co_yield, tok::kw_co_return)) ||
Previous->closesScope())) ||
(Previous->closesScope() &&
!Previous->endsSequence(tok::r_paren, tok::greater)))) ||
LeftSquare->isCppStructuredBinding(IsCpp)) {
return false;
}
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5 changes: 5 additions & 0 deletions clang/unittests/Format/TokenAnnotatorTest.cpp
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Expand Up @@ -2159,6 +2159,11 @@ TEST_F(TokenAnnotatorTest, UnderstandsLambdas) {
// FIXME:
// EXPECT_TOKEN(Tokens[13], tok::l_paren, TT_LambdaDefinitionLParen);
EXPECT_TOKEN(Tokens[17], tok::l_brace, TT_LambdaLBrace);

Tokens = annotate("auto foo{(std::function<int()>)[] { return 0; }};");
ASSERT_EQ(Tokens.size(), 23u) << Tokens;
EXPECT_TOKEN(Tokens[13], tok::l_square, TT_LambdaLSquare);
EXPECT_TOKEN(Tokens[15], tok::l_brace, TT_LambdaLBrace);
}

TEST_F(TokenAnnotatorTest, UnderstandsFunctionAnnotations) {
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