| /* |
| * 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.builder; |
| |
| import org.jf.dexlib2.Format; |
| import org.jf.dexlib2.Opcode; |
| import org.jf.dexlib2.iface.instruction.Instruction; |
| import org.jf.dexlib2.util.Preconditions; |
| |
| import javax.annotation.Nonnull; |
| import javax.annotation.Nullable; |
| |
| public abstract class BuilderInstruction implements Instruction { |
| @Nonnull protected final Opcode opcode; |
| |
| @Nullable MethodLocation location; |
| |
| protected BuilderInstruction(@Nonnull Opcode opcode) { |
| Preconditions.checkFormat(opcode, getFormat()); |
| this.opcode = opcode; |
| } |
| |
| @Nonnull public Opcode getOpcode() { |
| return opcode; |
| } |
| |
| public abstract Format getFormat(); |
| |
| public int getCodeUnits() { |
| return getFormat().size / 2; |
| } |
| |
| @Nonnull |
| public MethodLocation getLocation() { |
| if (location == null) { |
| throw new IllegalStateException("Cannot get the location of an instruction that hasn't been added to a " + |
| "method."); |
| } |
| return location; |
| } |
| } |