ciNullObject.hpp revision 1879
/*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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#ifndef SHARE_VM_CI_CINULLOBJECT_HPP
#define SHARE_VM_CI_CINULLOBJECT_HPP
#include "ci/ciClassList.hpp"
#include "ci/ciObject.hpp"
#include "ci/ciUtilities.hpp"
// ciNullObject
//
// This class represents a null reference in the VM.
class ciNullObject : public ciObject {
private:
ciNullObject() : ciObject() {}
const char* type_string() { return "ciNullObject"; }
public:
// Is this ciObject a Java Language Object? That is,
// is the ciObject an instance or an array
bool is_java_object() { return true; }
// What kind of ciObject is this?
bool is_null_object() const { return true; }
bool is_classless() const { return true; }
// Get the distinguished instance of this klass.
static ciNullObject* make();
};
#endif // SHARE_VM_CI_CINULLOBJECT_HPP