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      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.dexbacked.reference;
     33 
     34 import org.jf.dexlib2.base.reference.BaseFieldReference;
     35 import org.jf.dexlib2.dexbacked.DexBackedDexFile;
     36 import org.jf.dexlib2.dexbacked.raw.FieldIdItem;
     37 
     38 import javax.annotation.Nonnull;
     39 
     40 public class DexBackedFieldReference extends BaseFieldReference {
     41     @Nonnull public final DexBackedDexFile dexFile;
     42     public final int fieldIdItemOffset;
     43 
     44     public DexBackedFieldReference(@Nonnull DexBackedDexFile dexFile, int fieldIndex) {
     45         this.dexFile = dexFile;
     46         this.fieldIdItemOffset = dexFile.getFieldIdItemOffset(fieldIndex);
     47     }
     48 
     49     @Nonnull
     50     @Override
     51     public String getDefiningClass() {
     52         return dexFile.getType(dexFile.readUshort(fieldIdItemOffset + FieldIdItem.CLASS_OFFSET));
     53     }
     54 
     55     @Nonnull
     56     @Override
     57     public String getName() {
     58         return dexFile.getString(dexFile.readSmallUint(fieldIdItemOffset + FieldIdItem.NAME_OFFSET));
     59     }
     60 
     61     @Nonnull
     62     @Override
     63     public String getType() {
     64         return dexFile.getType(dexFile.readUshort(fieldIdItemOffset + FieldIdItem.TYPE_OFFSET));
     65     }
     66 }
     67