clang-tools 6.0.0

UnaryStaticAssertCheck.cpp
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1 //===--- UnaryStaticAssertCheck.cpp - clang-tidy---------------------------===//
2 //
3 // The LLVM Compiler Infrastructure
4 //
5 // This file is distributed under the University of Illinois Open Source
6 // License. See LICENSE.TXT for details.
7 //
8 //===----------------------------------------------------------------------===//
9
10 #include "UnaryStaticAssertCheck.h"
11 #include "clang/AST/ASTContext.h"
12 #include "clang/ASTMatchers/ASTMatchFinder.h"
13
14 using namespace clang::ast_matchers;
15
16 namespace clang {
17 namespace tidy {
18 namespace modernize {
19
20 void UnaryStaticAssertCheck::registerMatchers(MatchFinder *Finder) {
21 if (!getLangOpts().CPlusPlus17)
22 return;
23
24 Finder->addMatcher(staticAssertDecl().bind("static_assert"), this);
25 }
26
27 void UnaryStaticAssertCheck::check(const MatchFinder::MatchResult &Result) {
28 const auto *MatchedDecl =
29 Result.Nodes.getNodeAs<StaticAssertDecl>("static_assert");
30 const StringLiteral *AssertMessage = MatchedDecl->getMessage();
31
32 SourceLocation Loc = MatchedDecl->getLocation();
33
34 if (!AssertMessage || AssertMessage->getLength() ||
35 AssertMessage->getLocStart().isMacroID() || Loc.isMacroID())
36 return;
37
38 diag(Loc,
39 "use unary 'static_assert' when the string literal is an empty string")
40 << FixItHint::CreateRemoval(AssertMessage->getSourceRange());
41 }
42
43 } // namespace modernize
44 } // namespace tidy
45 } // namespace clang
Loc
SourceLocation Loc
&#39;#&#39; location in the include directive
Definition: IncludeOrderCheck.cpp:36
clang::ast_matchers
Definition: ClangTidyDiagnosticConsumer.h:27
UnaryStaticAssertCheck.h
clang
Definition: AndroidTidyModule.cpp:28