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 18 package org.apache.bcel.classfile; 19 20 import org.apache.bcel.AbstractTestCase; 21 import org.apache.bcel.generic.ConstantPoolGen; 22 import org.apache.bcel.generic.InstructionHandle; 23 import org.apache.bcel.generic.InstructionList; 24 import org.apache.bcel.generic.MethodGen; 25 import org.junit.Test; 26 27 public class ConstantPoolTestCase extends AbstractTestCase { 28 @Test testConstantToString()29 public void testConstantToString() throws ClassNotFoundException { 30 final JavaClass clazz = getTestClass(PACKAGE_BASE_NAME + ".data.SimpleClassWithDefaultConstructor"); 31 final ConstantPoolGen cp = new ConstantPoolGen(clazz.getConstantPool()); 32 33 final Method[] methods = clazz.getMethods(); 34 35 for (final Method method : methods) { 36 if (method.getName().equals("<init>")) { 37 for (final InstructionHandle instructionHandle : getInstructionHandles(clazz, cp, method)) { 38 System.out.println(instructionHandle.getInstruction().toString(cp.getConstantPool())); 39 } 40 } 41 } 42 } 43 getInstructionHandles(final JavaClass clazz, final ConstantPoolGen cp, final Method method)44 private InstructionHandle[] getInstructionHandles(final JavaClass clazz, final ConstantPoolGen cp, final Method method) { 45 final MethodGen methodGen = new MethodGen(method, clazz.getClassName(), cp); 46 final InstructionList instructionList = methodGen.getInstructionList(); 47 return instructionList.getInstructionHandles(); 48 } 49 } 50