| //===----------------------------------------------------------------------===// |
| // |
| // 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 "qualify_declval.hpp" |
| |
| namespace { |
| AST_MATCHER(clang::UnresolvedLookupExpr, requiresADL) { return Node.requiresADL(); } |
| AST_MATCHER(clang::UnresolvedLookupExpr, isDeclval) { return Node.getName().getAsString() == "declval"; } |
| } // namespace |
| |
| namespace libcpp { |
| qualify_declval::qualify_declval(llvm::StringRef name, clang::tidy::ClangTidyContext* context) |
| : clang::tidy::ClangTidyCheck(name, context) {} |
| |
| void qualify_declval::registerMatchers(clang::ast_matchers::MatchFinder* finder) { |
| using namespace clang::ast_matchers; |
| finder->addMatcher(callExpr(has(unresolvedLookupExpr(requiresADL(), isDeclval()))).bind("ADLcall"), this); |
| } |
| |
| void qualify_declval::check(const clang::ast_matchers::MatchFinder::MatchResult& result) { |
| if (const auto* call = result.Nodes.getNodeAs<clang::CallExpr>("ADLcall"); call != nullptr) { |
| diag(call->getBeginLoc(), "declval should be qualified to get better error messages") |
| << clang::FixItHint::CreateInsertion(call->getBeginLoc(), "std::"); |
| } |
| } |
| } // namespace libcpp |
