35 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 "AvoidVariadicFunctionsCheck.h"10#include "clang/ASTMatchers/ASTMatchFinder.h"11 12using namespace clang::ast_matchers;13 14namespace clang::tidy::modernize {15 16void AvoidVariadicFunctionsCheck::registerMatchers(MatchFinder *Finder) {17 // We only care about function *definitions* that are variadic, and do not18 // have extern "C" language linkage.19 Finder->addMatcher(20 functionDecl(isDefinition(), isVariadic(), unless(isExternC()))21 .bind("func"),22 this);23}24 25void AvoidVariadicFunctionsCheck::check(26 const MatchFinder::MatchResult &Result) {27 const auto *FD = Result.Nodes.getNodeAs<FunctionDecl>("func");28 29 diag(FD->getLocation(),30 "do not define a C-style variadic function; consider using a function "31 "parameter pack or currying instead");32}33 34} // namespace clang::tidy::modernize35