blob: c4ac5a4b5629c37f826cc6c20dfa7e5a6223f538 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
|
//===--- UsingNamespaceDirectiveCheck.cpp - clang-tidy ----------*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
#include "UsingNamespaceDirectiveCheck.h"
#include "clang/AST/ASTContext.h"
#include "clang/ASTMatchers/ASTMatchFinder.h"
#include "clang/ASTMatchers/ASTMatchers.h"
using namespace clang::ast_matchers;
namespace clang {
namespace tidy {
namespace google {
namespace build {
void UsingNamespaceDirectiveCheck::registerMatchers(
ast_matchers::MatchFinder *Finder) {
// Only register the matchers for C++; the functionality currently does not
// provide any benefit to other languages, despite being benign.
if (getLangOpts().CPlusPlus)
Finder->addMatcher(usingDirectiveDecl().bind("usingNamespace"), this);
}
void
UsingNamespaceDirectiveCheck::check(const MatchFinder::MatchResult &Result) {
const auto *U = Result.Nodes.getNodeAs<UsingDirectiveDecl>("usingNamespace");
SourceLocation Loc = U->getLocStart();
if (U->isImplicit() || !Loc.isValid())
return;
diag(Loc, "do not use namespace using-directives; "
"use using-declarations instead");
// TODO: We could suggest a list of using directives replacing the using
// namespace directive.
}
} // namespace build
} // namespace google
} // namespace tidy
} // namespace clang
|
