AddStaticInitTransformer.java revision 674060f01e9090cd21b3c5656cc3204912ad17a6
1/* 2 * Copyright 2003,2004 The Apache Software Foundation 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16package org.mockito.cglib.transform.impl; 17 18import java.lang.reflect.Method; 19 20import org.mockito.asm.Type; 21import org.mockito.cglib.core.*; 22import org.mockito.cglib.transform.*; 23 24/** 25 * @author Juozas Baliuka, Chris Nokleberg 26 */ 27public class AddStaticInitTransformer extends ClassEmitterTransformer { 28 private MethodInfo info; 29 30 public AddStaticInitTransformer(Method classInit) { 31 info = ReflectUtils.getMethodInfo(classInit); 32 if (!TypeUtils.isStatic(info.getModifiers())) { 33 throw new IllegalArgumentException(classInit + " is not static"); 34 } 35 Type[] types = info.getSignature().getArgumentTypes(); 36 if (types.length != 1 || 37 !types[0].equals(Constants.TYPE_CLASS) || 38 !info.getSignature().getReturnType().equals(Type.VOID_TYPE)) { 39 throw new IllegalArgumentException(classInit + " illegal signature"); 40 } 41 } 42 43 protected void init() { 44 if (!TypeUtils.isInterface(getAccess())) { 45 CodeEmitter e = getStaticHook(); 46 EmitUtils.load_class_this(e); 47 e.invoke(info); 48 } 49 } 50} 51