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 | |
14 | namespace libcpp { |
15 | namespace { |
16 | AST_MATCHER(clang::NamedDecl, isPretty) { return !is_ugly_name(Node.getName()); } |
17 | AST_MATCHER(clang::NamedDecl, isUgly) { return is_ugly_name(Node.getName()); } |
18 | } // namespace |
19 | |
20 | nodebug_on_aliases::nodebug_on_aliases(llvm::StringRef name, clang::tidy::ClangTidyContext* context) |
21 | : clang::tidy::ClangTidyCheck(name, context) {} |
22 | |
23 | void 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 | |
45 | void 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 | |