1 //===--- DefaultArgumentsCallsCheck.cpp - clang-tidy-----------------------===// 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-exception 6 // 7 //===----------------------------------------------------------------------===// 8 9 #include "DefaultArgumentsCallsCheck.h" 10 11 using namespace clang::ast_matchers; 12 13 namespace clang::tidy::fuchsia { 14 registerMatchers(MatchFinder * Finder)15void DefaultArgumentsCallsCheck::registerMatchers(MatchFinder *Finder) { 16 // Calling a function which uses default arguments is disallowed. 17 Finder->addMatcher(cxxDefaultArgExpr().bind("stmt"), this); 18 } 19 check(const MatchFinder::MatchResult & Result)20void DefaultArgumentsCallsCheck::check(const MatchFinder::MatchResult &Result) { 21 const auto *S = Result.Nodes.getNodeAs<CXXDefaultArgExpr>("stmt"); 22 if (!S) 23 return; 24 25 diag(S->getUsedLocation(), 26 "calling a function that uses a default argument is disallowed"); 27 diag(S->getParam()->getBeginLoc(), "default parameter was declared here", 28 DiagnosticIDs::Note); 29 } 30 31 } // namespace clang::tidy::fuchsia 32