jdk8-mips64-public/langtools: test/tools/javac/lambdaShapes/org/openjdk/tests/separate/AttributeInjector.java@2eb010b6cb22

     1 /*

     2  * Copyright (c) 2012, 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  */

    26 package org.openjdk.tests.separate;

    28 import java.io.*;

    30 public class AttributeInjector implements ClassFilePreprocessor {

    32     private String attributeName;

    33     private byte[] attributeData;

    35     public AttributeInjector(String attributeName, byte[] attributeData) {

    36         this.attributeName = attributeName;

    37         this.attributeData = attributeData;

    38     }

    40     public byte[] preprocess(String name, byte[] cf) {

    41         ClassFile classfile = new ClassFile(cf);

    43         short cpIndex = (short)classfile.constant_pool.size();

    45         ClassFile.CpUtf8 entry = new ClassFile.CpUtf8();

    46         entry.bytes = new byte[attributeName.length()];

    47         for (int i = 0; i < attributeName.length(); ++i) {

    48             entry.bytes[i] = (byte)attributeName.charAt(i);

    49         }

    51         classfile.constant_pool.add(entry);

    53         ClassFile.Attribute attr = new ClassFile.Attribute();

    54         attr.attribute_name_index = cpIndex;

    55         attr.info = attributeData;

    57         classfile.attributes.add(attr);

    58         return classfile.toByteArray();

    59     }

    61 /*

    62     public static void main(String argv[]) throws Exception {

    63         File input = new File(argv[0]);

    64         byte[] buffer = new byte[(int)input.length()];

    65         new FileInputStream(input).read(buffer);

    67         ClassFilePreprocessor cfp =

    68             new AttributeInjector("RequiresBridges", new byte[0]);

    69         byte[] cf = cfp.preprocess(argv[0], buffer);

    70         new FileOutputStream(argv[0] + ".mod").write(cf);

    71     }

    72 */

    73 }

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