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