1 /*

     2  * Copyright 2006 Sun Microsystems, Inc.  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.  Sun designates this

     8  * particular file as subject to the "Classpath" exception as provided

     9  * by Sun in the LICENSE file that accompanied this code.

    10  *

    11  * This code is distributed in the hope that it will be useful, but WITHOUT

    12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

    13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

    14  * version 2 for more details (a copy is included in the LICENSE file that

    15  * accompanied this code).

    16  *

    17  * You should have received a copy of the GNU General Public License version

    18  * 2 along with this work; if not, write to the Free Software Foundation,

    19  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

    20  *

    21  * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,

    22  * CA 95054 USA or visit www.sun.com if you need additional information or

    23  * have any questions.

    24  */

    25 

    26 package com.sun.codemodel.internal;

    27 

    28 /**

    29  * array component reference.

    30  */

    31 final class JArrayCompRef extends JExpressionImpl implements JAssignmentTarget {

    32     /**

    33      * JArray expression upon which this component will be accessed.

    34      */

    35     private final JExpression array;

    36 

    37     /**

    38      * Integer expression representing index of the component

    39      */

    40     private final JExpression index;

    41 

    42     /**

    43      * JArray component reference constructor given an array expression

    44      * and index.

    45      *

    46      * @param array

    47      *        JExpression for the array upon which

    48      *        the component will be accessed,

    49      *

    50      * @param index

    51      *        JExpression for index of component to access

    52      */

    53     JArrayCompRef(JExpression array, JExpression index) {

    54         if ((array == null) || (index == null)) {

    55             throw new NullPointerException();

    56         }

    57         this.array = array;

    58         this.index = index;

    59     }

    60 

    61     public void generate(JFormatter f) {

    62         f.g(array).p('[').g(index).p(']');

    63     }

    64 

    65     public JExpression assign(JExpression rhs) {

    66                 return JExpr.assign(this,rhs);

    67     }

    68     public JExpression assignPlus(JExpression rhs) {

    69                 return JExpr.assignPlus(this,rhs);

    70     }

    71 }