File: VirtualInheritanceCheck.cpp

package info (click to toggle)
llvm-toolchain-16 1%3A16.0.6-15~deb11u2
  • links: PTS, VCS
  • area: main
  • in suites: bullseye
  • size: 1,634,820 kB
  • sloc: cpp: 6,179,261; ansic: 1,216,205; asm: 741,319; python: 196,614; objc: 75,325; f90: 49,640; lisp: 32,396; pascal: 12,286; sh: 9,394; perl: 7,442; ml: 5,494; awk: 3,523; makefile: 2,723; javascript: 1,206; xml: 886; fortran: 581; cs: 573
file content (38 lines) | stat: -rw-r--r-- 1,345 bytes parent folder | download | duplicates (10)
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
//===--- VirtualInheritanceCheck.cpp - clang-tidy--------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//

#include "VirtualInheritanceCheck.h"
#include "clang/AST/ASTContext.h"
#include "clang/ASTMatchers/ASTMatchFinder.h"

using namespace clang::ast_matchers;

namespace clang::tidy::fuchsia {

namespace {
AST_MATCHER(CXXRecordDecl, hasDirectVirtualBaseClass) {
  if (!Node.hasDefinition()) return false;
  if (!Node.getNumVBases()) return false;
  for (const CXXBaseSpecifier &Base : Node.bases())
    if (Base.isVirtual()) return true;
  return false;
}
} // namespace

void VirtualInheritanceCheck::registerMatchers(MatchFinder *Finder) {
  // Defining classes using direct virtual inheritance is disallowed.
  Finder->addMatcher(cxxRecordDecl(hasDirectVirtualBaseClass()).bind("decl"),
                     this);
}

void VirtualInheritanceCheck::check(const MatchFinder::MatchResult &Result) {
  if (const auto *D = Result.Nodes.getNodeAs<CXXRecordDecl>("decl"))
    diag(D->getBeginLoc(), "direct virtual inheritance is disallowed");
}

} // namespace clang::tidy::fuchsia