| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, |
| * software distributed under the License is distributed on an |
| * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| * KIND, either express or implied. See the License for the |
| * specific language governing permissions and limitations |
| * under the License. |
| */ |
| package org.codehaus.groovy.classgen.asm; |
| |
| import org.codehaus.groovy.control.BytecodeProcessor; |
| import org.objectweb.asm.ClassReader; |
| import org.objectweb.asm.util.TraceClassVisitor; |
| |
| import java.io.PrintWriter; |
| import java.io.Writer; |
| |
| /** |
| * An utility class which can be used in test cases to dump generated bytecode. |
| * |
| * @since 2.4.0 |
| */ |
| public class BytecodeDumper implements BytecodeProcessor { |
| public static final BytecodeDumper STANDARD_ERR = new BytecodeDumper(new PrintWriter(System.err)); |
| |
| private final Writer out; |
| |
| public BytecodeDumper(final Writer out) { |
| this.out = out; |
| } |
| |
| @Override |
| public byte[] processBytecode(final String name, final byte[] original) { |
| PrintWriter pw = out instanceof PrintWriter ? (PrintWriter) out : new PrintWriter(out); |
| TraceClassVisitor visitor = new TraceClassVisitor(pw); |
| ClassReader reader = new ClassReader(original); |
| reader.accept(visitor, 0); |
| return original; |
| } |
| |
| } |