Home | History | Annotate | Download | only in instruction 
      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 
     32 package org.jf.dexlib2.builder.instruction;
     33 
     34 import com.google.common.base.Function;
     35 import com.google.common.collect.ImmutableList;
     36 import com.google.common.collect.Lists;
     37 import org.jf.dexlib2.Format;
     38 import org.jf.dexlib2.Opcode;
     39 import org.jf.dexlib2.builder.BuilderSwitchPayload;
     40 import org.jf.dexlib2.builder.SwitchLabelElement;
     41 import org.jf.dexlib2.iface.instruction.formats.SparseSwitchPayload;
     42 
     43 import javax.annotation.Nonnull;
     44 import javax.annotation.Nullable;
     45 import java.util.List;
     46 
     47 public class BuilderSparseSwitchPayload extends BuilderSwitchPayload implements SparseSwitchPayload {
     48     public static final Opcode OPCODE = Opcode.SPARSE_SWITCH_PAYLOAD;
     49 
     50     @Nonnull protected final List<BuilderSwitchElement> switchElements;
     51 
     52     public BuilderSparseSwitchPayload(@Nullable List<? extends SwitchLabelElement> switchElements) {
     53         super(OPCODE);
     54         if (switchElements == null) {
     55             this.switchElements = ImmutableList.of();
     56         } else {
     57             this.switchElements = Lists.transform(switchElements, new Function<SwitchLabelElement, BuilderSwitchElement>() {
     58                 @Nullable @Override public BuilderSwitchElement apply(@Nullable SwitchLabelElement element) {
     59                     assert element != null;
     60                     return new BuilderSwitchElement(BuilderSparseSwitchPayload.this, element.key, element.target);
     61                 }
     62             });
     63         }
     64     }
     65 
     66     @Nonnull @Override public List<BuilderSwitchElement> getSwitchElements() { return switchElements; }
     67 
     68     @Override public int getCodeUnits() { return 2 + switchElements.size() * 4; }
     69     @Override public Format getFormat() { return OPCODE.format; }
     70 }
     71