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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_BUGPRONE_IMPLICITWIDENINGOFMULTIPLICATIONRESULTCHECK_H10#define LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_BUGPRONE_IMPLICITWIDENINGOFMULTIPLICATIONRESULTCHECK_H11 12#include "../ClangTidyCheck.h"13#include "../utils/IncludeInserter.h"14#include <optional>15 16namespace clang::tidy::bugprone {17 18/// Diagnoses instances of an implicit widening of multiplication result.19///20/// For the user-facing documentation see:21/// https://clang.llvm.org/extra/clang-tidy/checks/bugprone/implicit-widening-of-multiplication-result.html22class ImplicitWideningOfMultiplicationResultCheck : public ClangTidyCheck {23 const ast_matchers::MatchFinder::MatchResult *Result;24 bool ShouldUseCXXStaticCast;25 bool ShouldUseCXXHeader;26 27 std::optional<FixItHint> includeStddefHeader(SourceLocation File);28 29 void handleImplicitCastExpr(const ImplicitCastExpr *ICE);30 void handlePointerOffsetting(const Expr *E);31 32public:33 ImplicitWideningOfMultiplicationResultCheck(StringRef Name,34 ClangTidyContext *Context);35 void registerPPCallbacks(const SourceManager &SM, Preprocessor *PP,36 Preprocessor *ModuleExpanderPP) override;37 void registerMatchers(ast_matchers::MatchFinder *Finder) override;38 void check(const ast_matchers::MatchFinder::MatchResult &Result) override;39 void storeOptions(ClangTidyOptions::OptionMap &Opts) override;40 41private:42 const bool UseCXXStaticCastsInCppSources;43 const bool UseCXXHeadersInCppSources;44 const bool IgnoreConstantIntExpr;45 utils::IncludeInserter IncludeInserter;46};47 48} // namespace clang::tidy::bugprone49 50#endif // LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_BUGPRONE_IMPLICITWIDENINGOFMULTIPLICATIONRESULTCHECK_H51