1 //===--- StructPackAlignCheck.h - clang-tidy --------------------*- C++ -*-===// 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-exception 6 // 7 //===----------------------------------------------------------------------===// 8 9 #ifndef LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_ALTERA_STRUCTPACKALIGNCHECK_H 10 #define LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_ALTERA_STRUCTPACKALIGNCHECK_H 11 12 #include "../ClangTidyCheck.h" 13 14 namespace clang { 15 namespace tidy { 16 namespace altera { 17 18 /// Finds structs that are inefficiently packed or aligned, and recommends 19 /// packing and/or aligning of said structs as needed. 20 /// 21 /// For the user-facing documentation see: 22 /// http://clang.llvm.org/extra/clang-tidy/checks/altera-struct-pack-align.html 23 class StructPackAlignCheck : public ClangTidyCheck { 24 public: StructPackAlignCheck(StringRef Name,ClangTidyContext * Context)25 StructPackAlignCheck(StringRef Name, ClangTidyContext *Context) 26 : ClangTidyCheck(Name, Context), 27 MaxConfiguredAlignment(Options.get("MaxConfiguredAlignment", 128)) {} 28 void registerMatchers(ast_matchers::MatchFinder *Finder) override; 29 void check(const ast_matchers::MatchFinder::MatchResult &Result) override; 30 void storeOptions(ClangTidyOptions::OptionMap &Opts) override; 31 32 private: 33 const unsigned MaxConfiguredAlignment; 34 CharUnits computeRecommendedAlignment(CharUnits MinByteSize); 35 }; 36 37 } // namespace altera 38 } // namespace tidy 39 } // namespace clang 40 41 #endif // LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_ALTERA_STRUCTPACKALIGNCHECK_H 42