clang-tools  8.0.0
NoNamespaceCheck.cpp
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1 //===--- NoNamespaceCheck.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 "NoNamespaceCheck.h"
11 #include "AbseilMatcher.h"
12 #include "clang/AST/ASTContext.h"
13 #include "clang/ASTMatchers/ASTMatchFinder.h"
14 
15 using namespace clang::ast_matchers;
16 
17 namespace clang {
18 namespace tidy {
19 namespace abseil {
20 
21 void NoNamespaceCheck::registerMatchers(MatchFinder *Finder) {
22  if (!getLangOpts().CPlusPlus)
23  return;
24 
25  Finder->addMatcher(
26  namespaceDecl(hasName("::absl"), unless(isInAbseilFile()))
27  .bind("abslNamespace"),
28  this);
29 }
30 
31 void NoNamespaceCheck::check(const MatchFinder::MatchResult &Result) {
32  const auto *abslNamespaceDecl =
33  Result.Nodes.getNodeAs<NamespaceDecl>("abslNamespace");
34 
35  diag(abslNamespaceDecl->getLocation(),
36  "namespace 'absl' is reserved for implementation of the Abseil library "
37  "and should not be opened in user code");
38 }
39 
40 } // namespace abseil
41 } // namespace tidy
42 } // namespace clang
llvm::Optional< llvm::Expected< tooling::AtomicChanges > > Result
===– Representation.cpp - ClangDoc Representation --------—*- C++ -*-===//