clang-tools  16.0.0git
OverloadedUnaryAndCheck.cpp
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1 //===--- OverloadedUnaryAndCheck.cpp - clang-tidy ---------------*- C++ -*-===//
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 #include "clang/ASTMatchers/ASTMatchers.h"
13 
14 using namespace clang::ast_matchers;
15 
16 namespace clang {
17 namespace tidy {
18 namespace google {
19 namespace runtime {
20 
21 void OverloadedUnaryAndCheck::registerMatchers(
22  ast_matchers::MatchFinder *Finder) {
23  // Match unary methods that overload operator&.
24  Finder->addMatcher(
25  cxxMethodDecl(parameterCountIs(0), hasOverloadedOperatorName("&"))
26  .bind("overload"),
27  this);
28  // Also match freestanding unary operator& overloads. Be careful not to match
29  // binary methods.
30  Finder->addMatcher(functionDecl(unless(cxxMethodDecl()), parameterCountIs(1),
31  hasOverloadedOperatorName("&"))
32  .bind("overload"),
33  this);
34 }
35 
36 void OverloadedUnaryAndCheck::check(const MatchFinder::MatchResult &Result) {
37  const auto *Decl = Result.Nodes.getNodeAs<FunctionDecl>("overload");
38  diag(Decl->getBeginLoc(),
39  "do not overload unary operator&, it is dangerous.");
40 }
41 
42 } // namespace runtime
43 } // namespace google
44 } // namespace tidy
45 } // namespace clang
clang::ast_matchers
Definition: AbseilMatcher.h:14
Decl
const FunctionDecl * Decl
Definition: AvoidBindCheck.cpp:100
OverloadedUnaryAndCheck.h
clang
===– Representation.cpp - ClangDoc Representation --------—*- C++ -*-===//
Definition: ApplyReplacements.h:27
clang::clangd::check
bool check(llvm::StringRef File, const ThreadsafeFS &TFS, const ClangdLSPServer::Options &Opts)
Definition: Check.cpp:418