1//===----------------------------------------------------------------------===//
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 "clang-tidy/ClangTidyCheck.h"
10
11#include "nodebug_on_aliases.hpp"
12#include "utilities.hpp"
13
14namespace libcpp {
15namespace {
16AST_MATCHER(clang::NamedDecl, isPretty) { return !is_ugly_name(Node.getName()); }
17AST_MATCHER(clang::NamedDecl, isUgly) { return is_ugly_name(Node.getName()); }
18} // namespace
19
20nodebug_on_aliases::nodebug_on_aliases(llvm::StringRef name, clang::tidy::ClangTidyContext* context)
21 : clang::tidy::ClangTidyCheck(name, context) {}
22
23void nodebug_on_aliases::registerMatchers(clang::ast_matchers::MatchFinder* finder) {
24 using namespace clang::ast_matchers;
25 finder->addMatcher(
26 typeAliasDecl(unless(anyOf(isPretty(), hasAttr(clang::attr::NoDebug), hasAncestor(functionDecl()))))
27 .bind("nodebug_on_internal_aliases"),
28 this);
29
30 finder->addMatcher(
31 typeAliasDecl(
32 unless(hasAttr(clang::attr::NoDebug)),
33 hasName("type"),
34 hasAncestor(cxxRecordDecl(unless(has(namedDecl(unless(anyOf(
35 typeAliasDecl(hasName("type")),
36 typeAliasDecl(isUgly()),
37 recordDecl(isImplicit()),
38 templateTypeParmDecl(),
39 nonTypeTemplateParmDecl(),
40 templateTemplateParmDecl()))))))))
41 .bind("nodebug_on_type_traits"),
42 this);
43}
44
45void nodebug_on_aliases::check(const clang::ast_matchers::MatchFinder::MatchResult& result) {
46 if (const auto* alias = result.Nodes.getNodeAs<clang::TypeAliasDecl>("nodebug_on_internal_aliases")) {
47 diag(alias->getBeginLoc(), "Internal aliases should always be marked _LIBCPP_NODEBUG");
48 }
49
50 if (const auto* alias = result.Nodes.getNodeAs<clang::TypeAliasDecl>("nodebug_on_type_traits")) {
51 diag(alias->getBeginLoc(), "The alias of type traits should always be marked _LIBCPP_NODEBUG");
52 }
53}
54} // namespace libcpp
55

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source code of libcxx/test/tools/clang_tidy_checks/nodebug_on_aliases.cpp