llvm-project/clang-tools-extra/clang-tidy/fuchsia/DefaultArgumentsCallsCheck.cpp

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//===--- DefaultArgumentsCallsCheck.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 "DefaultArgumentsCallsCheck.h"
using namespace clang::ast_matchers;
namespace clang {
namespace tidy {
namespace fuchsia {
void DefaultArgumentsCallsCheck::registerMatchers(MatchFinder *Finder) {
// Calling a function which uses default arguments is disallowed.
Finder->addMatcher(cxxDefaultArgExpr().bind("stmt"), this);
}
void DefaultArgumentsCallsCheck::check(const MatchFinder::MatchResult &Result) {
const auto *S = Result.Nodes.getNodeAs<CXXDefaultArgExpr>("stmt");
if (!S)
return;
diag(S->getUsedLocation(),
"calling a function that uses a default argument is disallowed");
diag(S->getParam()->getBeginLoc(), "default parameter was declared here",
DiagnosticIDs::Note);
}
} // namespace fuchsia
} // namespace tidy
} // namespace clang