50 lines
1.7 KiB
C++
50 lines
1.7 KiB
C++
/*
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* Copyright 1999-2000 Sun Microsystems, Inc. All Rights Reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
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* CA 95054 USA or visit www.sun.com if you need additional information or
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* have any questions.
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*
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*/
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// ciNullObject
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//
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// This class represents a null reference in the VM.
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class ciNullObject : public ciObject {
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CI_PACKAGE_ACCESS
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private:
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ciNullObject() : ciObject() {}
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const char* type_string() { return "ciNullObject"; }
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void print_impl(outputStream* st);
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public:
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// Is this ciObject a Java Language Object? That is,
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// is the ciObject an instance or an array
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bool is_java_object() { return true; }
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// What kind of ciObject is this?
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bool is_null_object() const { return true; }
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bool is_classless() const { return true; }
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// Get the distinguished instance of this klass.
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static ciNullObject* make();
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};
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