39 lines
1.2 KiB
C++
39 lines
1.2 KiB
C++
//===-- VariadicFunctionDefCheck.cpp - clang-tidy -------------------------===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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#include "VariadicFunctionDefCheck.h"
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#include "clang/AST/ASTContext.h"
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#include "clang/ASTMatchers/ASTMatchFinder.h"
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using namespace clang::ast_matchers;
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namespace clang {
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namespace tidy {
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namespace cert {
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void VariadicFunctionDefCheck::registerMatchers(MatchFinder *Finder) {
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// We only care about function *definitions* that are variadic, and do not
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// have extern "C" language linkage.
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Finder->addMatcher(
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functionDecl(isDefinition(), isVariadic(), unless(isExternC()))
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.bind("func"),
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this);
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}
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void VariadicFunctionDefCheck::check(const MatchFinder::MatchResult &Result) {
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const auto *FD = Result.Nodes.getNodeAs<FunctionDecl>("func");
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diag(FD->getLocation(),
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"do not define a C-style variadic function; consider using a function "
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"parameter pack or currying instead");
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}
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} // namespace cert
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} // namespace tidy
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} // namespace clang
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