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1//===----------------------------------------------------------------------===//2//3// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.4// See https://llvm.org/LICENSE.txt for license information.5// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception6//7//===----------------------------------------------------------------------===//8 9#ifndef LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_READABILITY_ELSEAFTERRETURNCHECK_H10#define LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_READABILITY_ELSEAFTERRETURNCHECK_H11 12#include "../ClangTidyCheck.h"13#include "llvm/ADT/DenseMap.h"14 15namespace clang::tidy::readability {16 17/// Flags the usages of `else` after `return`.18///19/// https://llvm.org/docs/CodingStandards.html#don-t-use-else-after-a-return20class ElseAfterReturnCheck : public ClangTidyCheck {21public:22 ElseAfterReturnCheck(StringRef Name, ClangTidyContext *Context);23 24 void storeOptions(ClangTidyOptions::OptionMap &Opts) override;25 void registerPPCallbacks(const SourceManager &SM, Preprocessor *PP,26 Preprocessor *ModuleExpanderPP) override;27 void registerMatchers(ast_matchers::MatchFinder *Finder) override;28 void check(const ast_matchers::MatchFinder::MatchResult &Result) override;29 std::optional<TraversalKind> getCheckTraversalKind() const override {30 return TK_IgnoreUnlessSpelledInSource;31 }32 33 using ConditionalBranchMap =34 llvm::DenseMap<FileID, SmallVector<SourceRange, 1>>;35 36private:37 const bool WarnOnUnfixable;38 const bool WarnOnConditionVariables;39 ConditionalBranchMap PPConditionals;40};41 42} // namespace clang::tidy::readability43 44#endif // LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_READABILITY_ELSEAFTERRETURNCHECK_H45