46 lines
1.4 KiB
C++
46 lines
1.4 KiB
C++
//===--- UnaryStaticAssertCheck.cpp - clang-tidy---------------------------===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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#include "UnaryStaticAssertCheck.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 modernize {
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void UnaryStaticAssertCheck::registerMatchers(MatchFinder *Finder) {
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if (!getLangOpts().CPlusPlus17)
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return;
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Finder->addMatcher(staticAssertDecl().bind("static_assert"), this);
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}
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void UnaryStaticAssertCheck::check(const MatchFinder::MatchResult &Result) {
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const auto *MatchedDecl =
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Result.Nodes.getNodeAs<StaticAssertDecl>("static_assert");
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const StringLiteral *AssertMessage = MatchedDecl->getMessage();
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SourceLocation Loc = MatchedDecl->getLocation();
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if (!AssertMessage || AssertMessage->getLength() ||
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AssertMessage->getLocStart().isMacroID() || Loc.isMacroID())
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return;
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diag(Loc,
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"use unary 'static_assert' when the string literal is an empty string")
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<< FixItHint::CreateRemoval(AssertMessage->getSourceRange());
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}
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} // namespace modernize
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} // namespace tidy
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} // namespace clang
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