51 lines · cpp
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-exception6//7//===----------------------------------------------------------------------===//8 9#include "clang-tidy/ClangTidyCheck.h"10#include "clang-tidy/ClangTidyModuleRegistry.h"11 12#include "robust_against_adl.hpp"13 14#include <algorithm>15 16namespace {17AST_MATCHER(clang::UnresolvedLookupExpr, requiresADL) { return Node.requiresADL(); }18 19AST_MATCHER(clang::CallExpr, isOperator) { return llvm::isa<clang::CXXOperatorCallExpr>(Node); }20 21AST_MATCHER(clang::UnresolvedLookupExpr, isCustomizationPoint) {22 return std::ranges::any_of(23 std::array{"swap", "make_error_code", "make_error_condition", "begin", "end", "size", "rend", "rbegin"},24 [&](const char* func) { return Node.getName().getAsString() == func; });25}26 27AST_MATCHER(clang::CXXMethodDecl, isStatic) { return Node.isStatic(); }28 29} // namespace30 31namespace libcpp {32robust_against_adl_check::robust_against_adl_check(llvm::StringRef name, clang::tidy::ClangTidyContext* context)33 : clang::tidy::ClangTidyCheck(name, context) {}34 35void robust_against_adl_check::registerMatchers(clang::ast_matchers::MatchFinder* finder) {36 using namespace clang::ast_matchers;37 finder->addMatcher(38 callExpr(unless(isOperator()),39 has(unresolvedLookupExpr(requiresADL(), unless(isCustomizationPoint()))),40 unless(callee(cxxMethodDecl(isStatic()))))41 .bind("ADLcall"),42 this);43}44 45void robust_against_adl_check::check(const clang::ast_matchers::MatchFinder::MatchResult& result) {46 if (const auto* call = result.Nodes.getNodeAs<clang::CallExpr>("ADLcall"); call != nullptr) {47 diag(call->getBeginLoc(), "ADL lookup");48 }49}50} // namespace libcpp51