1 /*
2 * Licensed to the Apache Software Foundation (ASF) under one or more
3 * contributor license agreements. See the NOTICE file distributed with
4 * this work for additional information regarding copyright ownership.
5 * The ASF licenses this file to You under the Apache License, Version 2.0
6 * (the "License"); you may not use this file except in compliance with
7 * the License. You may obtain a copy of the License at
8 *
9 * http://www.apache.org/licenses/LICENSE-2.0
10 *
11 * Unless required by applicable law or agreed to in writing, software
12 * distributed under the License is distributed on an "AS IS" BASIS,
13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14 * See the License for the specific language governing permissions and
15 * limitations under the License.
16 */
17 package org.apache.commons.javaflow.bytecode.transformation;
18
19 import org.apache.commons.javaflow.Continuation;
20 import org.apache.commons.javaflow.bytecode.transformation.asm.AsmClassTransformer;
21 import org.apache.commons.javaflow.bytecode.transformation.bcel.BcelClassTransformer;
22
23
24 /**
25 * Byte-code transformer that enhances the class files for javaflow.
26 *
27 * <p>
28 * When {@link Continuation#suspend()} is called, all the methods
29 * in the stack frame needs to be enhanced.
30 *
31 * @author tcurdt
32 * @see BcelClassTransformer
33 * @see AsmClassTransformer
34 */
35 public interface ResourceTransformer {
36 byte[] transform( final byte[] original );
37 }