langtools/src/jdk.compiler/share/classes/com/sun/tools/classfile/RuntimeParameterAnnotations_attribute.java
changeset 30846 2b3f379840f0
parent 30845 43ddd58a5a56
child 30847 9385b9c8506b
equal deleted inserted replaced
30845:43ddd58a5a56 30846:2b3f379840f0
     1 /*
       
     2  * Copyright (c) 2007, 2008, Oracle and/or its affiliates. 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.  Oracle designates this
       
     8  * particular file as subject to the "Classpath" exception as provided
       
     9  * by Oracle 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
       
    22  * or visit www.oracle.com if you need additional information or have any
       
    23  * questions.
       
    24  */
       
    25 
       
    26 package com.sun.tools.classfile;
       
    27 
       
    28 import java.io.IOException;
       
    29 
       
    30 /**
       
    31  * See JVMS, section 4.8.18 and 4.8.19.
       
    32  *
       
    33  *  <p><b>This is NOT part of any supported API.
       
    34  *  If you write code that depends on this, you do so at your own risk.
       
    35  *  This code and its internal interfaces are subject to change or
       
    36  *  deletion without notice.</b>
       
    37  */
       
    38 public abstract class RuntimeParameterAnnotations_attribute extends Attribute {
       
    39     RuntimeParameterAnnotations_attribute(ClassReader cr, int name_index, int length)
       
    40             throws IOException, Annotation.InvalidAnnotation {
       
    41         super(name_index, length);
       
    42         int num_parameters = cr.readUnsignedByte();
       
    43         parameter_annotations = new Annotation[num_parameters][];
       
    44         for (int p = 0; p < parameter_annotations.length; p++) {
       
    45             int num_annotations = cr.readUnsignedShort();
       
    46             Annotation[] annotations = new Annotation[num_annotations];
       
    47             for (int i = 0; i < num_annotations; i++)
       
    48                 annotations[i] = new Annotation(cr);
       
    49             parameter_annotations[p] = annotations;
       
    50         }
       
    51     }
       
    52 
       
    53     protected RuntimeParameterAnnotations_attribute(int name_index, Annotation[][] parameter_annotations) {
       
    54         super(name_index, length(parameter_annotations));
       
    55         this.parameter_annotations = parameter_annotations;
       
    56     }
       
    57 
       
    58     private static int length(Annotation[][] anno_arrays) {
       
    59         int n = 1;
       
    60         for (Annotation[] anno_array: anno_arrays) {
       
    61             n += 2;
       
    62             for (Annotation anno: anno_array)
       
    63                 n += anno.length();
       
    64         }
       
    65         return n;
       
    66     }
       
    67 
       
    68     public final Annotation[][] parameter_annotations;
       
    69 }
       
    70