BuilderPackedSwitchPayload.java revision 899b1e6611d260370aa81b9fb23684d2052e5f5f
1/* 2 * Copyright 2012, Google Inc. 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions are 7 * met: 8 * 9 * * Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * * Redistributions in binary form must reproduce the above 12 * copyright notice, this list of conditions and the following disclaimer 13 * in the documentation and/or other materials provided with the 14 * distribution. 15 * * Neither the name of Google Inc. nor the names of its 16 * contributors may be used to endorse or promote products derived from 17 * this software without specific prior written permission. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 20 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 21 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 22 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 23 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 24 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 25 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 26 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 27 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 28 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 29 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 30 */ 31 32package org.jf.dexlib2.builder.instruction; 33 34import com.google.common.base.Function; 35import com.google.common.collect.ImmutableList; 36import com.google.common.collect.Lists; 37import org.jf.dexlib2.Format; 38import org.jf.dexlib2.Opcode; 39import org.jf.dexlib2.builder.BuilderSwitchPayload; 40import org.jf.dexlib2.builder.Label; 41import org.jf.dexlib2.iface.instruction.formats.PackedSwitchPayload; 42 43import javax.annotation.Nonnull; 44import javax.annotation.Nullable; 45import java.util.List; 46 47public class BuilderPackedSwitchPayload extends BuilderSwitchPayload implements PackedSwitchPayload { 48 public static final Opcode OPCODE = Opcode.PACKED_SWITCH_PAYLOAD; 49 50 @Nonnull protected final List<BuilderSwitchElement> switchElements; 51 52 public BuilderPackedSwitchPayload(final int startKey, 53 @Nullable List<? extends Label> switchElements) { 54 super(OPCODE); 55 if (switchElements == null) { 56 this.switchElements = ImmutableList.of(); 57 } else { 58 this.switchElements = Lists.transform(switchElements, new Function<Label, BuilderSwitchElement>() { 59 int key = startKey; 60 @Nullable @Override public BuilderSwitchElement apply(@Nullable Label target) { 61 assert target != null; 62 return new BuilderSwitchElement(BuilderPackedSwitchPayload.this, key++, target); 63 } 64 }); 65 } 66 } 67 68 @Nonnull @Override public List<BuilderSwitchElement> getSwitchElements() { return switchElements; } 69 70 @Override public int getCodeUnits() { return 4 + switchElements.size() * 2; } 71 @Override public Format getFormat() { return OPCODE.format; } 72} 73