19066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project/* 29066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Copyright (C) 2008 The Android Open Source Project 39066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 49066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Licensed under the Apache License, Version 2.0 (the "License"); 59066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * you may not use this file except in compliance with the License. 69066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * You may obtain a copy of the License at 79066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 89066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * http://www.apache.org/licenses/LICENSE-2.0 99066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Unless required by applicable law or agreed to in writing, software 119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * distributed under the License is distributed on an "AS IS" BASIS, 129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * See the License for the specific language governing permissions and 149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * limitations under the License. 159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectpackage com.android.tools.layoutlib.create; 189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport org.objectweb.asm.ClassAdapter; 209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport org.objectweb.asm.ClassVisitor; 219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport org.objectweb.asm.FieldVisitor; 229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport org.objectweb.asm.MethodVisitor; 239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport org.objectweb.asm.Opcodes; 249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport org.objectweb.asm.Type; 259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport java.util.Set; 279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project/** 294b52ec49fee79b0488d6a9eaaa4ea5d74ce90905Xavier Ducrohet * Class adapter that can stub some or all of the methods of the class. 309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectclass TransformClassAdapter extends ClassAdapter { 329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** True if all methods should be stubbed, false if only native ones must be stubbed. */ 349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private final boolean mStubAll; 359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** True if the class is an interface. */ 369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean mIsInterface; 379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private final String mClassName; 389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private final Log mLog; 399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private final Set<String> mStubMethods; 409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private Set<String> mDeleteReturns; 419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Creates a new class adapter that will stub some or all methods. 444b52ec49fee79b0488d6a9eaaa4ea5d74ce90905Xavier Ducrohet * @param logger 454b52ec49fee79b0488d6a9eaaa4ea5d74ce90905Xavier Ducrohet * @param stubMethods list of method signatures to always stub out 469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param deleteReturns list of types that trigger the deletion of methods returning them. 479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param className The name of the class being modified 489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param cv The parent class writer visitor 494b52ec49fee79b0488d6a9eaaa4ea5d74ce90905Xavier Ducrohet * @param stubNativesOnly True if only native methods should be stubbed. False if all 509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * methods should be stubbed. 519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param hasNative True if the method has natives, in which case its access should be 529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * changed. 539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public TransformClassAdapter(Log logger, Set<String> stubMethods, 559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Set<String> deleteReturns, String className, ClassVisitor cv, 569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean stubNativesOnly, boolean hasNative) { 579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(cv); 589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLog = logger; 599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mStubMethods = stubMethods; 609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mClassName = className; 619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mStubAll = !stubNativesOnly; 629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mIsInterface = false; 639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDeleteReturns = deleteReturns; 649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /* Visits the class header. */ 679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void visit(int version, int access, String name, 699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project String signature, String superName, String[] interfaces) { 704b52ec49fee79b0488d6a9eaaa4ea5d74ce90905Xavier Ducrohet 719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // This class might be being renamed. 729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project name = mClassName; 734b52ec49fee79b0488d6a9eaaa4ea5d74ce90905Xavier Ducrohet 749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // remove protected or private and set as public 759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project access = access & ~(Opcodes.ACC_PRIVATE | Opcodes.ACC_PROTECTED); 769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project access |= Opcodes.ACC_PUBLIC; 779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // remove final 789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project access = access & ~Opcodes.ACC_FINAL; 799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // note: leave abstract classes as such 809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // don't try to implement stub for interfaces 819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mIsInterface = ((access & Opcodes.ACC_INTERFACE) != 0); 839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.visit(version, access, name, signature, superName, interfaces); 849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 854b52ec49fee79b0488d6a9eaaa4ea5d74ce90905Xavier Ducrohet 869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /* Visits the header of an inner class. */ 879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void visitInnerClass(String name, String outerName, String innerName, int access) { 899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // remove protected or private and set as public 909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project access = access & ~(Opcodes.ACC_PRIVATE | Opcodes.ACC_PROTECTED); 919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project access |= Opcodes.ACC_PUBLIC; 929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // remove final 939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project access = access & ~Opcodes.ACC_FINAL; 949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // note: leave abstract classes as such 959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // don't try to implement stub for interfaces 969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.visitInnerClass(name, outerName, innerName, access); 989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /* Visits a method. */ 1019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 1029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public MethodVisitor visitMethod(int access, String name, String desc, 1039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project String signature, String[] exceptions) { 1044b52ec49fee79b0488d6a9eaaa4ea5d74ce90905Xavier Ducrohet 1059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mDeleteReturns != null) { 1069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Type t = Type.getReturnType(desc); 1079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (t.getSort() == Type.OBJECT) { 1089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project String returnType = t.getInternalName(); 1099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (returnType != null) { 1109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mDeleteReturns.contains(returnType)) { 1119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return null; 1129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project String methodSignature = mClassName.replace('/', '.') + "#" + name; 1189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // change access to public 1209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project access &= ~(Opcodes.ACC_PROTECTED | Opcodes.ACC_PRIVATE); 1219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project access |= Opcodes.ACC_PUBLIC; 1229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // remove final 1249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project access = access & ~Opcodes.ACC_FINAL; 1259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // stub this method if they are all to be stubbed or if it is a native method 1279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // and don't try to stub interfaces nor abstract non-native methods. 1289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!mIsInterface && 1299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ((access & (Opcodes.ACC_ABSTRACT | Opcodes.ACC_NATIVE)) != Opcodes.ACC_ABSTRACT) && 1309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project (mStubAll || 1319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project (access & Opcodes.ACC_NATIVE) != 0) || 1329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mStubMethods.contains(methodSignature)) { 1334b52ec49fee79b0488d6a9eaaa4ea5d74ce90905Xavier Ducrohet 1349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean isStatic = (access & Opcodes.ACC_STATIC) != 0; 1359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean isNative = (access & Opcodes.ACC_NATIVE) != 0; 1369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // remove abstract, final and native 1389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project access = access & ~(Opcodes.ACC_ABSTRACT | Opcodes.ACC_FINAL | Opcodes.ACC_NATIVE); 1394b52ec49fee79b0488d6a9eaaa4ea5d74ce90905Xavier Ducrohet 1409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project String invokeSignature = methodSignature + desc; 1419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLog.debug(" Stub: %s (%s)", invokeSignature, isNative ? "native" : ""); 1424b52ec49fee79b0488d6a9eaaa4ea5d74ce90905Xavier Ducrohet 1439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project MethodVisitor mw = super.visitMethod(access, name, desc, signature, exceptions); 1449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return new StubMethodAdapter(mw, name, returnType(desc), invokeSignature, 1459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project isStatic, isNative); 1469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 1489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLog.debug(" Keep: %s %s", name, desc); 1499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return super.visitMethod(access, name, desc, signature, exceptions); 1509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1524b52ec49fee79b0488d6a9eaaa4ea5d74ce90905Xavier Ducrohet 1539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /* Visits a field. Makes it public. */ 1549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 1559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public FieldVisitor visitField(int access, String name, String desc, String signature, 1569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Object value) { 1579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // change access to public 1589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project access &= ~(Opcodes.ACC_PROTECTED | Opcodes.ACC_PRIVATE); 1599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project access |= Opcodes.ACC_PUBLIC; 1604b52ec49fee79b0488d6a9eaaa4ea5d74ce90905Xavier Ducrohet 1619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return super.visitField(access, name, desc, signature, value); 1629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Extracts the return {@link Type} of this descriptor. 1669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Type returnType(String desc) { 1689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (desc != null) { 1699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project try { 1709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return Type.getReturnType(desc); 1719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } catch (ArrayIndexOutOfBoundsException e) { 1729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // ignore, not a valid type. 1739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return null; 1769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 178