clang-tools-extra/clang-tidy/readability/DeleteNullPointerCheck.h

   1 //===--- DeleteNullPointerCheck.h - clang-tidy-------------------*- C++ -*-===//
   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 #ifndef LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_READABILITY_DELETE_NULL_POINTER_H
  10 #define LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_READABILITY_DELETE_NULL_POINTER_H
  11
  12 #include "../ClangTidyCheck.h"
  13
  14 namespace clang::tidy::readability {
  15
  16 /// Check whether the 'if' statement is unnecessary before calling 'delete' on a
  17 /// pointer.
  18 ///
  19 /// For the user-facing documentation see:
  20 /// http://clang.llvm.org/extra/clang-tidy/checks/readability/delete-null-pointer.html
  21 class DeleteNullPointerCheck : public ClangTidyCheck {
  22 public:
  23   DeleteNullPointerCheck(StringRef Name, ClangTidyContext *Context)
  24       : ClangTidyCheck(Name, Context) {}
  25   void registerMatchers(ast_matchers::MatchFinder *Finder) override;
  26   void check(const ast_matchers::MatchFinder::MatchResult &Result) override;
  27   std::optional<TraversalKind> getCheckTraversalKind() const override {
  28     return TK_IgnoreUnlessSpelledInSource;
  29   }
  30 };
  31
  32 } // namespace clang::tidy::readability
  33
  34 #endif // LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_READABILITY_DELETE_NULL_POINTER_H