void RedundantVoidArgCheck::registerMatchers(MatchFinder *Finder) {
  Finder->addMatcher(functionDecl(parameterCountIs(0), unless(isImplicit()),
                                  unless(isExternC()))
                         .bind(FunctionId),
                     this);
  Finder->addMatcher(typedefNameDecl().bind(TypedefId), this);
  auto ParenFunctionType = parenType(innerType(functionType()));
  auto PointerToFunctionType = pointee(ParenFunctionType);
  auto FunctionOrMemberPointer =
      anyOf(hasType(pointerType(PointerToFunctionType)),
            hasType(memberPointerType(PointerToFunctionType)));
  Finder->addMatcher(fieldDecl(FunctionOrMemberPointer).bind(FieldId), this);
  Finder->addMatcher(varDecl(FunctionOrMemberPointer).bind(VarId), this);
  auto CastDestinationIsFunction =
      hasDestinationType(pointsTo(ParenFunctionType));
  Finder->addMatcher(
      cStyleCastExpr(CastDestinationIsFunction).bind(CStyleCastId), this);
  Finder->addMatcher(
      cxxStaticCastExpr(CastDestinationIsFunction).bind(NamedCastId), this);
  Finder->addMatcher(
      cxxReinterpretCastExpr(CastDestinationIsFunction).bind(NamedCastId),
      this);
  Finder->addMatcher(
      cxxConstCastExpr(CastDestinationIsFunction).bind(NamedCastId), this);
  Finder->addMatcher(lambdaExpr().bind(LambdaId), this);
}
void ProTypeReinterpretCastCheck::registerMatchers(MatchFinder *Finder) {
  if (!getLangOpts().CPlusPlus)
    return;

  Finder->addMatcher(cxxReinterpretCastExpr().bind("cast"), this);
}