| //===-- VariadicFunctionDefCheck.cpp - clang-tidy -------------------------===// |
| // |
| // 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 "VariadicFunctionDefCheck.h" |
| #include "clang/AST/ASTContext.h" |
| #include "clang/ASTMatchers/ASTMatchFinder.h" |
| |
| using namespace clang::ast_matchers; |
| |
| namespace clang { |
| namespace tidy { |
| namespace cert { |
| |
| void VariadicFunctionDefCheck::registerMatchers(MatchFinder *Finder) { |
| // We only care about function *definitions* that are variadic, and do not |
| // have extern "C" language linkage. |
| Finder->addMatcher( |
| functionDecl(isDefinition(), isVariadic(), unless(isExternC())) |
| .bind("func"), |
| this); |
| } |
| |
| void VariadicFunctionDefCheck::check(const MatchFinder::MatchResult &Result) { |
| const auto *FD = Result.Nodes.getNodeAs<FunctionDecl>("func"); |
| |
| diag(FD->getLocation(), |
| "do not define a C-style variadic function; consider using a function " |
| "parameter pack or currying instead"); |
| } |
| |
| } // namespace cert |
| } // namespace tidy |
| } // namespace clang |