1 /*
 2  * Copyright (c) 1996, 2014, 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.
 8  *
 9  * This code is distributed in the hope that it will be useful, but WITHOUT
10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
12  * version 2 for more details (a copy is included in the LICENSE file that
13  * accompanied this code).
14  *
15  * You should have received a copy of the GNU General Public License version
16  * 2 along with this work; if not, write to the Free Software Foundation,
17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18  *
19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20  * or visit www.oracle.com if you need additional information or have any
21  * questions.
22  */
23 package org.openjdk.asmtools.jasm;
24 
25 import java.io.IOException;
26 import java.util.ArrayList;
27 
28 /**
29  *
30  */
31 class BootstrapMethodData extends Argument implements Data {
32 
33     ConstantPool.ConstCell bootstrapMethodHandle;
34     ArrayList<ConstantPool.ConstCell> arguments;
35     public int placeholder_index = -1;
36 
37     public BootstrapMethodData(ConstantPool.ConstCell bsmHandle, ArrayList<ConstantPool.ConstCell> arguments) {
38         super();
39         this.bootstrapMethodHandle = bsmHandle;
40         this.arguments = arguments;
41     }
42 
43     public BootstrapMethodData(int placeholder) {
44         super();
45         this.bootstrapMethodHandle = null;
46         this.arguments = null;
47         this.placeholder_index = placeholder;
48     }
49 
50     public int getLength() {
51         return 4 + arguments.size() * 2;
52     }
53 
54     public boolean isPlaceholder() {
55         return placeholder_index > -1;
56     }
57 
58     public void write(CheckedDataOutputStream out) throws IOException {
59         out.writeShort(bootstrapMethodHandle.arg);
60         out.writeShort(arguments.size());
61 
62         for (ConstantPool.ConstCell argument : arguments) {
63             out.writeShort(argument.arg);
64         }
65     }
66 }