mirror of
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77 lines
3.3 KiB
C++
77 lines
3.3 KiB
C++
/********************************************************************************
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* Copyright (C) 2021 GSI Helmholtzzentrum fuer Schwerionenforschung GmbH *
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* *
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* This software is distributed under the terms of the *
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* GNU Lesser General Public Licence (LGPL) version 3, *
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* copied verbatim in the file "LICENSE" *
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********************************************************************************/
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#ifndef FAIR_MQ_TIDY_TOOL
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#define FAIR_MQ_TIDY_TOOL
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#include <clang/ASTMatchers/ASTMatchFinder.h>
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#include <clang/Basic/FileManager.h>
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#include <clang/Tooling/CompilationDatabase.h>
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#include <clang/Tooling/Tooling.h>
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#include <fairmq/tidy/ModernizeNonNamespacedTypes.h>
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#include <string>
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namespace fair::mq::tidy {
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// Getting up to speed, read this:
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// https://clang.llvm.org/docs/LibTooling.html
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// https://clang.llvm.org/docs/IntroductionToTheClangAST.html
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// Watch https://www.youtube.com/watch?v=VqCkCDFLSsc !!!
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//
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// optional, but helpful:
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// https://static.linaro.org/connect/yvr18/presentations/yvr18-223.pdf
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// https://steveire.wordpress.com/2018/11/20/composing-ast-matchers-in-clang-tidy/
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// https://www.goldsborough.me/c++/clang/llvm/tools/2017/02/24/00-00-06-emitting_diagnostics_and_fixithints_in_clang_tools/
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// https://steveire.com/CodeDive2018Presentation.pdf
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//
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// reference (no built-in search, however google will find things):
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// https://clang.llvm.org/doxygen/
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//
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// Note: Implementing a standalone tool will impose double PP and parsing cost if one also
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// runs clang-tidy. At the moment, one cannot extend clang-tidy with new checks without
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// recompiling clang-tidy. In principle llvm-project/clang-extra-tools/clang-tidy
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// has install rules, but Fedora is not packaging them which is likely due to their
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// unstable state (lots of comments aka todo, fixme, refactor etc). Also, it seems
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// focus has shifted towards implementing the
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// https://microsoft.github.io/language-server-protocol/
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// via https://clangd.llvm.org/ which includes clang-tidy, but also does not have
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// an extension/plugin interface for third-party checks yet AFAICS.
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struct Tool
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{
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static auto run(clang::tooling::CompilationDatabase const &compilations,
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clang::ArrayRef<std::string> sources) -> int
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{
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using namespace clang;
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// compose all checks in a single match finder
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ast_matchers::MatchFinder finder;
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ModernizeNonNamespacedTypes check1(finder);
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// configure the clang tool
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tooling::ClangTool tool(compilations, sources);
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tool.appendArgumentsAdjuster(
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[](tooling::CommandLineArguments const &_args, StringRef /*file*/) {
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tooling::CommandLineArguments args(_args);
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// TODO add only if cdb was generated with GCC
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args.emplace(args.begin() + 1, "-I/usr/lib64/clang/12.0.0/include");
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// TODO add only if missing
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args.emplace(args.begin() + 1, "-std=c++17");
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args.emplace_back("-Wno-everything");
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return args;
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});
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// run checks on given files
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return tool.run(clang::tooling::newFrontendActionFactory(&finder).get());
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}
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};
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} // namespace fair::mq::tidy
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#endif /* FAIR_MQ_TIDY_TOOL */
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