duke@435: /*
duke@435:  * Copyright 1997-2003 Sun Microsystems, Inc.  All Rights Reserved.
duke@435:  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
duke@435:  *
duke@435:  * This code is free software; you can redistribute it and/or modify it
duke@435:  * under the terms of the GNU General Public License version 2 only, as
duke@435:  * published by the Free Software Foundation.
duke@435:  *
duke@435:  * This code is distributed in the hope that it will be useful, but WITHOUT
duke@435:  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
duke@435:  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
duke@435:  * version 2 for more details (a copy is included in the LICENSE file that
duke@435:  * accompanied this code).
duke@435:  *
duke@435:  * You should have received a copy of the GNU General Public License version
duke@435:  * 2 along with this work; if not, write to the Free Software Foundation,
duke@435:  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
duke@435:  *
duke@435:  * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
duke@435:  * CA 95054 USA or visit www.sun.com if you need additional information or
duke@435:  * have any questions.
duke@435:  *
duke@435:  */
duke@435: 
duke@435: // An objArrayOop is an array containing oops.
duke@435: // Evaluating "String arg[10]" will create an objArrayOop.
duke@435: 
duke@435: class objArrayOopDesc : public arrayOopDesc {
duke@435:  public:
duke@435:   // Accessing
duke@435:   oop obj_at(int index) const           { return *obj_at_addr(index);           }
duke@435:   void obj_at_put(int index, oop value) { oop_store(obj_at_addr(index), value); }
duke@435:   oop* base() const                     { return (oop*) arrayOopDesc::base(T_OBJECT); }
duke@435: 
duke@435:   // Sizing
duke@435:   static int header_size()              { return arrayOopDesc::header_size(T_OBJECT); }
duke@435:   static int object_size(int length)    { return align_object_size(header_size() + length); }
duke@435:   int object_size()                     { return object_size(length()); }
duke@435: 
duke@435:   // Returns the address of the index'th element
duke@435:   oop* obj_at_addr(int index) const {
duke@435:     assert(is_within_bounds(index), "index out of bounds");
duke@435:     return &base()[index];
duke@435:   }
duke@435: };