| //===--- UnaryStaticAssertCheck.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 "UnaryStaticAssertCheck.h" |
| #include "clang/AST/ASTContext.h" |
| #include "clang/ASTMatchers/ASTMatchFinder.h" |
| |
| using namespace clang::ast_matchers; |
| |
| namespace clang { |
| namespace tidy { |
| namespace modernize { |
| |
| void UnaryStaticAssertCheck::registerMatchers(MatchFinder *Finder) { |
| Finder->addMatcher(staticAssertDecl().bind("static_assert"), this); |
| } |
| |
| void UnaryStaticAssertCheck::check(const MatchFinder::MatchResult &Result) { |
| const auto *MatchedDecl = |
| Result.Nodes.getNodeAs<StaticAssertDecl>("static_assert"); |
| const StringLiteral *AssertMessage = MatchedDecl->getMessage(); |
| |
| SourceLocation Loc = MatchedDecl->getLocation(); |
| |
| if (!AssertMessage || AssertMessage->getLength() || |
| AssertMessage->getBeginLoc().isMacroID() || Loc.isMacroID()) |
| return; |
| |
| diag(Loc, |
| "use unary 'static_assert' when the string literal is an empty string") |
| << FixItHint::CreateRemoval(AssertMessage->getSourceRange()); |
| } |
| |
| } // namespace modernize |
| } // namespace tidy |
| } // namespace clang |