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1 /*
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2 * Copyright 1997-2003 Sun Microsystems, Inc. All Rights Reserved.
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3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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4 *
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5 * This code is free software; you can redistribute it and/or modify it
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6 * under the terms of the GNU General Public License version 2 only, as
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7 * published by the Free Software Foundation.
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8 *
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9 * This code is distributed in the hope that it will be useful, but WITHOUT
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10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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12 * version 2 for more details (a copy is included in the LICENSE file that
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13 * accompanied this code).
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14 *
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15 * You should have received a copy of the GNU General Public License version
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16 * 2 along with this work; if not, write to the Free Software Foundation,
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17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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18 *
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19 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
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20 * CA 95054 USA or visit www.sun.com if you need additional information or
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21 * have any questions.
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22 *
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23 */
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24
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25 // An objArrayOop is an array containing oops.
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26 // Evaluating "String arg[10]" will create an objArrayOop.
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27
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28 class objArrayOopDesc : public arrayOopDesc {
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29 public:
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30 // Accessing
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31 oop obj_at(int index) const { return *obj_at_addr(index); }
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32 void obj_at_put(int index, oop value) { oop_store(obj_at_addr(index), value); }
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33 oop* base() const { return (oop*) arrayOopDesc::base(T_OBJECT); }
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34
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35 // Sizing
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36 static int header_size() { return arrayOopDesc::header_size(T_OBJECT); }
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37 static int object_size(int length) { return align_object_size(header_size() + length); }
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38 int object_size() { return object_size(length()); }
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39
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40 // Returns the address of the index'th element
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41 oop* obj_at_addr(int index) const {
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42 assert(is_within_bounds(index), "index out of bounds");
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43 return &base()[index];
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44 }
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45 };
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