38 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 "UnaryStaticAssertCheck.h"10#include "clang/ASTMatchers/ASTMatchFinder.h"11 12using namespace clang::ast_matchers;13 14namespace clang::tidy::modernize {15 16void UnaryStaticAssertCheck::registerMatchers(MatchFinder *Finder) {17 Finder->addMatcher(staticAssertDecl().bind("static_assert"), this);18}19 20void UnaryStaticAssertCheck::check(const MatchFinder::MatchResult &Result) {21 const auto *MatchedDecl =22 Result.Nodes.getNodeAs<StaticAssertDecl>("static_assert");23 const auto *AssertMessage =24 dyn_cast_if_present<StringLiteral>(MatchedDecl->getMessage());25 26 const SourceLocation Loc = MatchedDecl->getLocation();27 28 if (!AssertMessage || AssertMessage->getLength() ||29 AssertMessage->getBeginLoc().isMacroID() || Loc.isMacroID())30 return;31 32 diag(Loc,33 "use unary 'static_assert' when the string literal is an empty string")34 << FixItHint::CreateRemoval(AssertMessage->getSourceRange());35}36 37} // namespace clang::tidy::modernize38