Author: owenca Date: 2025-09-27T21:29:25-07:00 New Revision: 4edda3d78c26b9d928d115b2059d0c719eec237b
URL: https://github.com/llvm/llvm-project/commit/4edda3d78c26b9d928d115b2059d0c719eec237b DIFF: https://github.com/llvm/llvm-project/commit/4edda3d78c26b9d928d115b2059d0c719eec237b.diff LOG: [clang-format] Fix bugs in annotating arrows and square brackets (#160973) Fixes #160518 Added: Modified: clang/lib/Format/TokenAnnotator.cpp clang/lib/Format/UnwrappedLineParser.cpp clang/unittests/Format/TokenAnnotatorTest.cpp Removed: ################################################################################ diff --git a/clang/lib/Format/TokenAnnotator.cpp b/clang/lib/Format/TokenAnnotator.cpp index 6a8286da73442..67066a104d738 100644 --- a/clang/lib/Format/TokenAnnotator.cpp +++ b/clang/lib/Format/TokenAnnotator.cpp @@ -833,11 +833,6 @@ class AnnotatingParser { if (Parent && Parent->is(TT_PointerOrReference)) Parent->overwriteFixedType(TT_BinaryOperator); } - // An arrow after an ObjC method expression is not a lambda arrow. - if (CurrentToken->is(TT_ObjCMethodExpr) && CurrentToken->Next && - CurrentToken->Next->is(TT_LambdaArrow)) { - CurrentToken->Next->overwriteFixedType(TT_Unknown); - } Left->MatchingParen = CurrentToken; CurrentToken->MatchingParen = Left; // FirstObjCSelectorName is set when a colon is found. This does diff --git a/clang/lib/Format/UnwrappedLineParser.cpp b/clang/lib/Format/UnwrappedLineParser.cpp index 2c9766c9b7bc0..6948b3de1e408 100644 --- a/clang/lib/Format/UnwrappedLineParser.cpp +++ b/clang/lib/Format/UnwrappedLineParser.cpp @@ -2268,7 +2268,7 @@ bool UnwrappedLineParser::tryToParseLambda() { if (!tryToParseLambdaIntroducer()) return false; - bool SeenArrow = false; + FormatToken *Arrow = nullptr; bool InTemplateParameterList = false; while (FormatTok->isNot(tok::l_brace)) { @@ -2343,17 +2343,13 @@ bool UnwrappedLineParser::tryToParseLambda() { case tok::ellipsis: case tok::kw_true: case tok::kw_false: - if (SeenArrow || InTemplateParameterList) { + if (Arrow || InTemplateParameterList) { nextToken(); break; } return true; case tok::arrow: - // This might or might not actually be a lambda arrow (this could be an - // ObjC method invocation followed by a dereferencing arrow). We might - // reset this back to TT_Unknown in TokenAnnotator. - FormatTok->setFinalizedType(TT_LambdaArrow); - SeenArrow = true; + Arrow = FormatTok; nextToken(); break; case tok::kw_requires: { @@ -2375,6 +2371,9 @@ bool UnwrappedLineParser::tryToParseLambda() { FormatTok->setFinalizedType(TT_LambdaLBrace); LSquare.setFinalizedType(TT_LambdaLSquare); + if (Arrow) + Arrow->setFinalizedType(TT_LambdaArrow); + NestedLambdas.push_back(Line->SeenDecltypeAuto); parseChildBlock(); assert(!NestedLambdas.empty()); @@ -2388,11 +2387,6 @@ bool UnwrappedLineParser::tryToParseLambdaIntroducer() { const FormatToken *LeftSquare = FormatTok; nextToken(); if (Previous) { - if (Previous->Tok.getIdentifierInfo() && - !Previous->isOneOf(tok::kw_return, tok::kw_co_await, tok::kw_co_yield, - tok::kw_co_return)) { - return false; - } if (Previous->closesScope()) { // Not a potential C-style cast. if (Previous->isNot(tok::r_paren)) @@ -2402,6 +2396,13 @@ bool UnwrappedLineParser::tryToParseLambdaIntroducer() { // and `int (*)()`. if (!BeforeRParen || !BeforeRParen->isOneOf(tok::greater, tok::r_paren)) return false; + } else if (Previous->is(tok::star)) { + Previous = Previous->getPreviousNonComment(); + } + if (Previous && Previous->Tok.getIdentifierInfo() && + !Previous->isOneOf(tok::kw_return, tok::kw_co_await, tok::kw_co_yield, + tok::kw_co_return)) { + return false; } } if (LeftSquare->isCppStructuredBinding(IsCpp)) diff --git a/clang/unittests/Format/TokenAnnotatorTest.cpp b/clang/unittests/Format/TokenAnnotatorTest.cpp index 899cc47f8213f..4a8f27f656f1d 100644 --- a/clang/unittests/Format/TokenAnnotatorTest.cpp +++ b/clang/unittests/Format/TokenAnnotatorTest.cpp @@ -2237,6 +2237,12 @@ TEST_F(TokenAnnotatorTest, UnderstandsLambdas) { ASSERT_EQ(Tokens.size(), 21u) << Tokens; EXPECT_TOKEN(Tokens[11], tok::l_square, TT_LambdaLSquare); EXPECT_TOKEN(Tokens[13], tok::l_brace, TT_LambdaLBrace); + + Tokens = annotate("SomeFunction({[]() -> int *[] { return {}; }});"); + ASSERT_EQ(Tokens.size(), 22u) << Tokens; + EXPECT_TOKEN(Tokens[3], tok::l_square, TT_LambdaLSquare); + EXPECT_TOKEN(Tokens[5], tok::l_paren, TT_LambdaDefinitionLParen); + EXPECT_TOKEN(Tokens[10], tok::l_square, TT_ArraySubscriptLSquare); } TEST_F(TokenAnnotatorTest, UnderstandsFunctionAnnotations) { @@ -4159,6 +4165,14 @@ TEST_F(TokenAnnotatorTest, LineCommentTrailingBackslash) { EXPECT_TOKEN(Tokens[1], tok::comment, TT_LineComment); } +TEST_F(TokenAnnotatorTest, ArrowAfterSubscript) { + auto Tokens = + annotate("return (getStructType()->getElements())[eIdx]->getName();"); + ASSERT_EQ(Tokens.size(), 19u) << Tokens; + // Not TT_LambdaArrow. + EXPECT_TOKEN(Tokens[13], tok::arrow, TT_Unknown); +} + TEST_F(TokenAnnotatorTest, QtProperty) { auto Style = getLLVMStyle(); Style.AllowBreakBeforeQtProperty = true; _______________________________________________ cfe-commits mailing list [email protected] https://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits
