| /* |
| * Copyright 2012, Google Inc. |
| * All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions are |
| * met: |
| * |
| * * Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * * Redistributions in binary form must reproduce the above |
| * copyright notice, this list of conditions and the following disclaimer |
| * in the documentation and/or other materials provided with the |
| * distribution. |
| * * Neither the name of Google Inc. nor the names of its |
| * contributors may be used to endorse or promote products derived from |
| * this software without specific prior written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
| * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
| * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| */ |
| |
| package org.jf.dexlib2.dexbacked.reference; |
| |
| import com.google.common.collect.ImmutableList; |
| import org.jf.dexlib2.base.reference.BaseMethodReference; |
| import org.jf.dexlib2.dexbacked.DexBackedDexFile; |
| import org.jf.dexlib2.dexbacked.raw.MethodIdItem; |
| import org.jf.dexlib2.dexbacked.raw.ProtoIdItem; |
| import org.jf.dexlib2.dexbacked.raw.TypeListItem; |
| import org.jf.dexlib2.dexbacked.util.FixedSizeList; |
| |
| import javax.annotation.Nonnull; |
| import java.util.List; |
| |
| public class DexBackedMethodReference extends BaseMethodReference { |
| @Nonnull public final DexBackedDexFile dexFile; |
| public final int methodIdItemOffset; |
| private int protoIdItemOffset; |
| |
| public DexBackedMethodReference(@Nonnull DexBackedDexFile dexFile, int methodIndex) { |
| this.dexFile = dexFile; |
| this.methodIdItemOffset = dexFile.getMethodIdItemOffset(methodIndex); |
| } |
| |
| @Nonnull |
| @Override |
| public String getDefiningClass() { |
| return dexFile.getType(dexFile.readUshort(methodIdItemOffset + MethodIdItem.CLASS_OFFSET)); |
| } |
| |
| @Nonnull |
| @Override |
| public String getName() { |
| return dexFile.getString(dexFile.readSmallUint(methodIdItemOffset + MethodIdItem.NAME_OFFSET)); |
| } |
| |
| @Nonnull |
| @Override |
| public List<String> getParameterTypes() { |
| int protoIdItemOffset = getProtoIdItemOffset(); |
| final int parametersOffset = dexFile.readSmallUint(protoIdItemOffset + ProtoIdItem.PARAMETERS_OFFSET); |
| if (parametersOffset > 0) { |
| final int parameterCount = dexFile.readSmallUint(parametersOffset + TypeListItem.SIZE_OFFSET); |
| final int paramListStart = parametersOffset + TypeListItem.LIST_OFFSET; |
| return new FixedSizeList<String>() { |
| @Nonnull |
| @Override |
| public String readItem(final int index) { |
| return dexFile.getType(dexFile.readUshort(paramListStart + 2*index)); |
| } |
| @Override public int size() { return parameterCount; } |
| }; |
| } |
| return ImmutableList.of(); |
| } |
| |
| @Nonnull |
| @Override |
| public String getReturnType() { |
| int protoIdItemOffset = getProtoIdItemOffset(); |
| return dexFile.getType(dexFile.readSmallUint(protoIdItemOffset + ProtoIdItem.RETURN_TYPE_OFFSET)); |
| } |
| |
| private int getProtoIdItemOffset() { |
| if (protoIdItemOffset == 0) { |
| protoIdItemOffset = dexFile.getProtoIdItemOffset( |
| dexFile.readUshort(methodIdItemOffset + MethodIdItem.PROTO_OFFSET)); |
| } |
| return protoIdItemOffset; |
| } |
| } |