1 /*

     2  * Copyright (c) 2017, 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 

    24 package jdk.experimental.bytecode;

    25 

    26 /**

    27  * Class member builder.

    28  *

    29  * @param <S> the type of symbol representation

    30  * @param <T> the type of type descriptors representation

    31  * @param <E> the type of pool entries

    32  * @param <M> the type of this builder

    33  */

    34 public class MemberBuilder<S, T, E, M extends MemberBuilder<S, T, E, M>> extends DeclBuilder<S, T, E, M> {

    35 

    36     CharSequence name;

    37     T desc;

    38 

    39     /**

    40      * Create a member builder.

    41      *

    42      * @param name the name of the class member

    43      * @param type the type descriptor of the class member

    44      * @param poolHelper the helper to build the constant pool

    45      * @param typeHelper the helper to use to manipulate type descriptors

    46      */

    47     MemberBuilder(CharSequence name, T type, PoolHelper<S, T, E> poolHelper, TypeHelper<S, T> typeHelper) {

    48         super(poolHelper, typeHelper);

    49         this.name = name;

    50         this.desc = type;

    51     }

    52 

    53     /**

    54      * Build the member.

    55      *

    56      * @param buf the {@code GrowableByteBuffer} to build the member into

    57      */

    58     protected void build(GrowableByteBuffer buf) {

    59         addAnnotations();

    60         buf.writeChar(flags);

    61         buf.writeChar(poolHelper.putUtf8(name));

    62         buf.writeChar(poolHelper.putType(desc));

    63         buf.writeChar(nattrs);

    64         buf.writeBytes(attributes);

    65     }

    66 

    67     /**

    68      * Build the member.

    69      *

    70      * @return a byte array representation of the member

    71      */

    72     protected byte[] build() {

    73         GrowableByteBuffer buf = new GrowableByteBuffer();

    74         addAnnotations();

    75         build(buf);

    76         return buf.bytes();

    77     }

    78 }