================ @@ -0,0 +1,66 @@ +//===----------------------------------------------------------------------===// +// +// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. +// See https://llvm.org/LICENSE.txt for license information. +// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception +// +//===----------------------------------------------------------------------===// + +#include "RedundantLambdaParameterListCheck.h" +#include "../utils/LexerUtils.h" + +using namespace clang::ast_matchers; + +namespace clang::tidy::readability { + +namespace { + +AST_MATCHER(LambdaExpr, hasRedundantParens) { + return Node.hasExplicitParameters() && + Node.getCallOperator()->getNumParams() == 0 && + !Node.getCallOperator()->getTrailingRequiresClause(); +} + +} // namespace + +void RedundantLambdaParameterListCheck::registerMatchers(MatchFinder *Finder) { + Finder->addMatcher(lambdaExpr(hasRedundantParens()).bind("lambda"), this); +} + +void RedundantLambdaParameterListCheck::check( + const MatchFinder::MatchResult &Result) { + const auto *Lambda = Result.Nodes.getNodeAs<LambdaExpr>("lambda"); + + const LangOptions &LangOpts = getLangOpts(); + + const FunctionTypeLoc FTL = Lambda->getCallOperator()->getFunctionTypeLoc(); + const SourceLocation LParenLoc = FTL.getLParenLoc(); + const SourceLocation RParenLoc = FTL.getRParenLoc(); + + if (LParenLoc.isInvalid() || RParenLoc.isInvalid()) + return; + + // Ensure parens are truly empty (reject "(void)") ---------------- unterumarmung wrote:
I think we should not reject `(void)` - it is still useless. @localspook wdyt? https://github.com/llvm/llvm-project/pull/190438 _______________________________________________ cfe-commits mailing list [email protected] https://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits
