1 //===--- AvoidSpinlockCheck.cpp - clang-tidy-------------------------------===// 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 #include "AvoidSpinlockCheck.h" 10 #include "clang/AST/ASTContext.h" 11 #include "clang/ASTMatchers/ASTMatchFinder.h" 12 13 using namespace clang::ast_matchers; 14 15 namespace clang { 16 namespace tidy { 17 namespace darwin { 18 registerMatchers(MatchFinder * Finder)19void AvoidSpinlockCheck::registerMatchers(MatchFinder *Finder) { 20 Finder->addMatcher( 21 callExpr(callee((functionDecl(hasAnyName( 22 "OSSpinlockLock", "OSSpinlockUnlock", "OSSpinlockTry"))))) 23 .bind("spinlock"), 24 this); 25 } 26 check(const MatchFinder::MatchResult & Result)27void AvoidSpinlockCheck::check(const MatchFinder::MatchResult &Result) { 28 const auto *MatchedExpr = Result.Nodes.getNodeAs<CallExpr>("spinlock"); 29 diag(MatchedExpr->getBeginLoc(), 30 "use os_unfair_lock_lock() or dispatch queue APIs instead of the " 31 "deprecated OSSpinLock"); 32 } 33 34 } // namespace darwin 35 } // namespace tidy 36 } // namespace clang 37