clang-tools-extra/clang-tidy/darwin/AvoidSpinlockCheck.cpp

   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::tidy::darwin {
  16
  17 void AvoidSpinlockCheck::registerMatchers(MatchFinder *Finder) {
  18   Finder->addMatcher(
  19       callExpr(callee((functionDecl(hasAnyName(
  20                    "OSSpinlockLock", "OSSpinlockUnlock", "OSSpinlockTry")))))
  21           .bind("spinlock"),
  22       this);
  23 }
  24
  25 void AvoidSpinlockCheck::check(const MatchFinder::MatchResult &Result) {
  26   const auto *MatchedExpr = Result.Nodes.getNodeAs<CallExpr>("spinlock");
  27   diag(MatchedExpr->getBeginLoc(),
  28        "use os_unfair_lock_lock() or dispatch queue APIs instead of the "
  29        "deprecated OSSpinLock");
  30 }
  31
  32 } // namespace clang::tidy::darwin