Path: blob/master/src/hotspot/share/ci/ciNullObject.hpp
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/*1* Copyright (c) 1999, 2019, Oracle and/or its affiliates. All rights reserved.2* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.3*4* This code is free software; you can redistribute it and/or modify it5* under the terms of the GNU General Public License version 2 only, as6* published by the Free Software Foundation.7*8* This code is distributed in the hope that it will be useful, but WITHOUT9* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or10* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License11* version 2 for more details (a copy is included in the LICENSE file that12* accompanied this code).13*14* You should have received a copy of the GNU General Public License version15* 2 along with this work; if not, write to the Free Software Foundation,16* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.17*18* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA19* or visit www.oracle.com if you need additional information or have any20* questions.21*22*/2324#ifndef SHARE_CI_CINULLOBJECT_HPP25#define SHARE_CI_CINULLOBJECT_HPP2627#include "ci/ciClassList.hpp"28#include "ci/ciObject.hpp"2930// ciNullObject31//32// This class represents a null reference in the VM.33class ciNullObject : public ciObject {34CI_PACKAGE_ACCESS3536private:37ciNullObject() : ciObject() {}3839const char* type_string() { return "ciNullObject"; }4041void print_impl(outputStream* st);4243public:4445// What kind of ciObject is this?46bool is_null_object() const { return true; }47bool is_classless() const { return true; }4849// Get the distinguished instance of this klass.50static ciNullObject* make();51};5253#endif // SHARE_CI_CINULLOBJECT_HPP545556