[clang-tools-extra] [clang-tidy] Add performance-move-smart-pointer-contents check. (PR #66139)

[Piotr Zegar via cfe-commits]

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@@ -0,0 +1,80 @@
+//===--- MoveSmartPointerContentsCheck.cpp - clang-tidy -------------------===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+
+#include <string>
+
+#include "MoveSmartPointerContentsCheck.h"
+#include "../utils/Matchers.h"
+#include "../utils/OptionsUtils.h"
+#include "clang/AST/ASTContext.h"
+#include "clang/ASTMatchers/ASTMatchFinder.h"
+#include "clang/Lex/Lexer.h"
+
+using namespace clang::ast_matchers;
+
+namespace clang::tidy::performance {
+
+MoveSmartPointerContentsCheck::MoveSmartPointerContentsCheck(
+    StringRef Name, ClangTidyContext *Context)
+    : ClangTidyCheck(Name, Context),
+      UniquePointerClasses(utils::options::parseStringList(
+          Options.get("UniquePointerClasses", "std::unique_ptr"))),
+      IsAUniquePointer(namedDecl(hasAnyName(UniquePointerClasses))),
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PiotrZSL wrote:

do not create matcher on class level, use instead matchesAnyListedName directly in registerMatchers

https://github.com/llvm/llvm-project/pull/66139