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