ciNullObject.cpp revision 1879:f95d63e2154a 
1/*
2 * Copyright (c) 1999, 2010, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation.
8 *
9 * This code is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
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23 */
24
25#include "precompiled.hpp"
26#include "ci/ciNullObject.hpp"
27
28// ciNullObject
29//
30// This class represents a null reference.  It can be used
31// as a class loader or as the null constant.
32
33// ------------------------------------------------------------------
34// ciNullObject::print_impl
35//
36// Implementation of the print method.
37void ciNullObject::print_impl(outputStream* st) {
38  ciObject::print_impl(st);
39  st->print(" unique");
40}
41
42// ------------------------------------------------------------------
43// ciNullObject::make
44//
45// Get the distinguished instance of this class.
46ciNullObject* ciNullObject::make() {
47  return CURRENT_ENV->_null_object_instance->as_null_object();
48}
49