| /* |
| * ProGuard -- shrinking, optimization, obfuscation, and preverification |
| * of Java bytecode. |
| * |
| * Copyright (c) 2002-2017 Eric Lafortune @ GuardSquare |
| * |
| * This program is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License as published by the Free |
| * Software Foundation; either version 2 of the License, or (at your option) |
| * any later version. |
| * |
| * This program is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for |
| * more details. |
| * |
| * You should have received a copy of the GNU General Public License along |
| * with this program; if not, write to the Free Software Foundation, Inc., |
| * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
| */ |
| package proguard.classfile.editor; |
| |
| import proguard.classfile.*; |
| import proguard.classfile.attribute.*; |
| import proguard.classfile.attribute.visitor.BootstrapMethodInfoVisitor; |
| |
| /** |
| * This BootstrapMethodInfoVisitor adds all bootstrap methods that it visits to |
| * the given target bootstrap methods attribute. |
| */ |
| public class BootstrapMethodInfoAdder |
| implements BootstrapMethodInfoVisitor |
| { |
| private final ConstantAdder constantAdder; |
| private final BootstrapMethodsAttributeEditor bootstrapMethodsAttributeEditor; |
| |
| private int bootstrapMethodIndex; |
| |
| |
| /** |
| * Creates a new BootstrapMethodInfoAdder that will copy bootstrap methods |
| * into the given bootstrap methods attribute. |
| */ |
| public BootstrapMethodInfoAdder(ProgramClass targetClass, |
| BootstrapMethodsAttribute targetBootstrapMethodsAttribute) |
| { |
| this.constantAdder = new ConstantAdder(targetClass); |
| this.bootstrapMethodsAttributeEditor = new BootstrapMethodsAttributeEditor(targetBootstrapMethodsAttribute); |
| } |
| |
| |
| /** |
| * Returns the index of the most recently added bootstrap method. |
| */ |
| public int getBootstrapMethodIndex() |
| { |
| return bootstrapMethodIndex; |
| } |
| |
| |
| // Implementations for BootstrapMethodInfoVisitor. |
| |
| public void visitBootstrapMethodInfo(Clazz clazz, BootstrapMethodInfo bootstrapMethodInfo) |
| { |
| // Copy the method arguments. |
| int methodArgumentCount = bootstrapMethodInfo.u2methodArgumentCount; |
| int[] methodArguments = bootstrapMethodInfo.u2methodArguments; |
| int[] newMethodArguments = new int[methodArgumentCount]; |
| |
| for (int index = 0; index < methodArgumentCount; index++) |
| { |
| newMethodArguments[index] = |
| constantAdder.addConstant(clazz, methodArguments[index]); |
| } |
| |
| // Create a new bootstrap method. |
| BootstrapMethodInfo newBootstrapMethodInfo = |
| new BootstrapMethodInfo(constantAdder.addConstant(clazz, bootstrapMethodInfo.u2methodHandleIndex), |
| methodArgumentCount, |
| newMethodArguments); |
| |
| // Add it to the target. |
| bootstrapMethodIndex = |
| bootstrapMethodsAttributeEditor.addBootstrapMethodInfo(newBootstrapMethodInfo); |
| } |
| } |