clang-tools  10.0.0
UnaryStaticAssertCheck.cpp
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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 
10 #include "clang/AST/ASTContext.h"
11 #include "clang/ASTMatchers/ASTMatchFinder.h"
12 
13 using namespace clang::ast_matchers;
14 
15 namespace clang {
16 namespace tidy {
17 namespace modernize {
18 
19 void UnaryStaticAssertCheck::registerMatchers(MatchFinder *Finder) {
20  if (!getLangOpts().CPlusPlus17)
21  return;
22 
23  Finder->addMatcher(staticAssertDecl().bind("static_assert"), this);
24 }
25 
26 void UnaryStaticAssertCheck::check(const MatchFinder::MatchResult &Result) {
27  const auto *MatchedDecl =
28  Result.Nodes.getNodeAs<StaticAssertDecl>("static_assert");
29  const StringLiteral *AssertMessage = MatchedDecl->getMessage();
30 
31  SourceLocation Loc = MatchedDecl->getLocation();
32 
33  if (!AssertMessage || AssertMessage->getLength() ||
34  AssertMessage->getBeginLoc().isMacroID() || Loc.isMacroID())
35  return;
36 
37  diag(Loc,
38  "use unary 'static_assert' when the string literal is an empty string")
39  << FixItHint::CreateRemoval(AssertMessage->getSourceRange());
40 }
41 
42 } // namespace modernize
43 } // namespace tidy
44 } // namespace clang
SourceLocation Loc
&#39;#&#39; location in the include directive
===– Representation.cpp - ClangDoc Representation --------—*- C++ -*-===//