| /* |
| * ProGuard -- shrinking, optimization, obfuscation, and preverification |
| * of Java bytecode. |
| * |
| * Copyright (c) 2002-2013 Eric Lafortune (eric@graphics.cornell.edu) |
| * |
| * 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.instruction.visitor; |
| |
| import proguard.classfile.*; |
| import proguard.classfile.attribute.CodeAttribute; |
| import proguard.classfile.instruction.*; |
| |
| |
| /** |
| * This InstructionVisitor delegates all visits to each InstructionVisitor |
| * in a given list. |
| * |
| * @author Eric Lafortune |
| */ |
| public class MultiInstructionVisitor implements InstructionVisitor |
| { |
| private static final int ARRAY_SIZE_INCREMENT = 5; |
| |
| |
| private InstructionVisitor[] instructionVisitors; |
| private int instructionVisitorCount; |
| |
| |
| public MultiInstructionVisitor() |
| { |
| } |
| |
| |
| public MultiInstructionVisitor(InstructionVisitor[] instructionVisitors) |
| { |
| this.instructionVisitors = instructionVisitors; |
| this.instructionVisitorCount = instructionVisitors.length; |
| } |
| |
| |
| public void addInstructionVisitor(InstructionVisitor instructionVisitor) |
| { |
| ensureArraySize(); |
| |
| instructionVisitors[instructionVisitorCount++] = instructionVisitor; |
| } |
| |
| |
| private void ensureArraySize() |
| { |
| if (instructionVisitors == null) |
| { |
| instructionVisitors = new InstructionVisitor[ARRAY_SIZE_INCREMENT]; |
| } |
| else if (instructionVisitors.length == instructionVisitorCount) |
| { |
| InstructionVisitor[] newInstructionVisitors = |
| new InstructionVisitor[instructionVisitorCount + |
| ARRAY_SIZE_INCREMENT]; |
| System.arraycopy(instructionVisitors, 0, |
| newInstructionVisitors, 0, |
| instructionVisitorCount); |
| instructionVisitors = newInstructionVisitors; |
| } |
| } |
| |
| |
| // Implementations for InstructionVisitor. |
| |
| public void visitSimpleInstruction(Clazz clazz, Method method, CodeAttribute codeAttribute, int offset, SimpleInstruction simpleInstruction) |
| { |
| for (int index = 0; index < instructionVisitorCount; index++) |
| { |
| instructionVisitors[index].visitSimpleInstruction(clazz, method, codeAttribute, offset, simpleInstruction); |
| } |
| } |
| |
| public void visitVariableInstruction(Clazz clazz, Method method, CodeAttribute codeAttribute, int offset, VariableInstruction variableInstruction) |
| { |
| for (int index = 0; index < instructionVisitorCount; index++) |
| { |
| instructionVisitors[index].visitVariableInstruction(clazz, method, codeAttribute, offset, variableInstruction); |
| } |
| } |
| |
| public void visitConstantInstruction(Clazz clazz, Method method, CodeAttribute codeAttribute, int offset, ConstantInstruction constantInstruction) |
| { |
| for (int index = 0; index < instructionVisitorCount; index++) |
| { |
| instructionVisitors[index].visitConstantInstruction(clazz, method, codeAttribute, offset, constantInstruction); |
| } |
| } |
| |
| public void visitBranchInstruction(Clazz clazz, Method method, CodeAttribute codeAttribute, int offset, BranchInstruction branchInstruction) |
| { |
| for (int index = 0; index < instructionVisitorCount; index++) |
| { |
| instructionVisitors[index].visitBranchInstruction(clazz, method, codeAttribute, offset, branchInstruction); |
| } |
| } |
| |
| public void visitTableSwitchInstruction(Clazz clazz, Method method, CodeAttribute codeAttribute, int offset, TableSwitchInstruction tableSwitchInstruction) |
| { |
| for (int index = 0; index < instructionVisitorCount; index++) |
| { |
| instructionVisitors[index].visitTableSwitchInstruction(clazz, method, codeAttribute, offset, tableSwitchInstruction); |
| } |
| } |
| |
| public void visitLookUpSwitchInstruction(Clazz clazz, Method method, CodeAttribute codeAttribute, int offset, LookUpSwitchInstruction lookUpSwitchInstruction) |
| { |
| for (int index = 0; index < instructionVisitorCount; index++) |
| { |
| instructionVisitors[index].visitLookUpSwitchInstruction(clazz, method, codeAttribute, offset, lookUpSwitchInstruction); |
| } |
| } |
| } |