| //===----------------------------------------------------------------------===// |
| // |
| // 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 "clang-tidy/ClangTidyCheck.h" |
| #include "clang-tidy/ClangTidyModuleRegistry.h" |
| |
| #include "hide_from_abi.hpp" |
| |
| namespace libcpp { |
| hide_from_abi::hide_from_abi(llvm::StringRef name, clang::tidy::ClangTidyContext* context) |
| : clang::tidy::ClangTidyCheck(name, context) {} |
| |
| void hide_from_abi::registerMatchers(clang::ast_matchers::MatchFinder* finder) { |
| using namespace clang::ast_matchers; |
| finder->addMatcher( |
| functionDecl( |
| unless(anyOf( |
| // These functions can't be marked `[[gnu::always_inline]]` for various reasons, |
| // so we can't mark them `_LIBCPP_HIDE_FROM_ABI`. These functions are ignored in |
| // all namespaces. Checking the qualified name is a lot harder and these names |
| // should result in very few (if any) false-negatives. This is also just a |
| // temporary work-around until we can mark functions as HIDE_FROM_ABI without |
| // having to add `[[gnu::always_inline]]` with GCC. |
| hasAnyName("__introsort", |
| "__inplace_merge", |
| "__libcpp_snprintf_l", |
| "__libcpp_asprintf_l", |
| "__libcpp_sscanf_l", |
| "__tree_sub_invariant", |
| "__stable_sort_move", |
| "__stable_sort", |
| "__stable_partition", |
| "__lock_first", |
| "__stable_partition_impl"), |
| hasAttr(clang::attr::Visibility), |
| hasAttr(clang::attr::AbiTag), |
| cxxMethodDecl(), // We have explicitly instantiated classes and some of their methods don't have these attributes |
| isDeleted(), |
| isConsteval())), |
| isDefinition()) |
| .bind("missing_hide_from_abi"), |
| this); |
| } |
| |
| void hide_from_abi::check(const clang::ast_matchers::MatchFinder::MatchResult& result) { |
| if (const auto* call = result.Nodes.getNodeAs<clang::FunctionDecl>("missing_hide_from_abi"); call != nullptr) { |
| diag(call->getBeginLoc(), "_LIBCPP_HIDE_FROM_ABI is missing"); |
| } |
| } |
| } // namespace libcpp |
