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contrib/devtools/bitcoin-tidy/nontrivial-threadlocal.cpp
44 строки
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Cory Fields
clang-tidy: add check for non-trivial thread_local vars
22 май 2024, 16:47
22 май 2024, 16:47
34c9cee
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// Copyright (c) 2023 Bitcoin Developers // Distributed under the MIT software license, see the accompanying // file COPYING or http://www.opensource.org/licenses/mit-license.php. #include "nontrivial-threadlocal.h" #include <clang/AST/ASTContext.h> #include <clang/ASTMatchers/ASTMatchFinder.h> // Copied from clang-tidy's UnusedRaiiCheck namespace { AST_MATCHER(clang::CXXRecordDecl, hasNonTrivialDestructor) { // TODO: If the dtor is there but empty we don't want to warn either. return Node.hasDefinition() && Node.hasNonTrivialDestructor(); } } // namespace namespace bitcoin { void NonTrivialThreadLocal::registerMatchers(clang::ast_matchers::MatchFinder* finder) { using namespace clang::ast_matchers; /* thread_local std::string foo; */ finder->addMatcher( varDecl( hasThreadStorageDuration(), hasType(hasCanonicalType(recordType(hasDeclaration(cxxRecordDecl(hasNonTrivialDestructor()))))) ).bind("nontrivial_threadlocal"), this); } void NonTrivialThreadLocal::check(const clang::ast_matchers::MatchFinder::MatchResult& Result) { if (const clang::VarDecl* var = Result.Nodes.getNodeAs<clang::VarDecl>("nontrivial_threadlocal")) { const auto user_diag = diag(var->getBeginLoc(), "Variable with non-trivial destructor cannot be thread_local."); } } } // namespace bitcoin