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//===--- CleanupCtadCheck.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 "CleanupCtadCheck.h"
#include "../utils/TransformerClangTidyCheck.h"
#include "clang/AST/ASTContext.h"
#include "clang/ASTMatchers/ASTMatchFinder.h"
#include "clang/ASTMatchers/ASTMatchers.h"
#include "clang/Tooling/Transformer/RangeSelector.h"
#include "clang/Tooling/Transformer/RewriteRule.h"
#include "clang/Tooling/Transformer/Stencil.h"
#include "llvm/ADT/StringRef.h"
using namespace ::clang::ast_matchers;
using namespace ::clang::transformer;
namespace clang {
namespace tidy {
namespace abseil {
RewriteRule CleanupCtadCheckImpl() {
auto warning_message = cat("prefer absl::Cleanup's class template argument "
"deduction pattern in C++17 and higher");
return makeRule(
declStmt(hasSingleDecl(varDecl(
hasType(autoType()), hasTypeLoc(typeLoc().bind("auto_type_loc")),
hasInitializer(hasDescendant(
callExpr(callee(functionDecl(hasName("absl::MakeCleanup"))),
argumentCountIs(1))
.bind("make_cleanup_call")))))),
{changeTo(node("auto_type_loc"), cat("absl::Cleanup")),
changeTo(node("make_cleanup_call"), cat(callArgs("make_cleanup_call")))},
warning_message);
}
CleanupCtadCheck::CleanupCtadCheck(StringRef Name, ClangTidyContext *Context)
: utils::TransformerClangTidyCheck(CleanupCtadCheckImpl(), Name, Context) {}
} // namespace abseil
} // namespace tidy
} // namespace clang
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