1f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/* 2f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Copyright (C) 2007 The Android Open Source Project 3f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 4f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Licensed under the Apache License, Version 2.0 (the "License"); 5f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * you may not use this file except in compliance with the License. 6f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * You may obtain a copy of the License at 7f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 8f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * http://www.apache.org/licenses/LICENSE-2.0 9f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 10f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Unless required by applicable law or agreed to in writing, software 11f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * distributed under the License is distributed on an "AS IS" BASIS, 12f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * See the License for the specific language governing permissions and 14f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * limitations under the License. 15f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 16f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 17f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectpackage com.android.dx.dex.code; 18f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 19f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectimport com.android.dx.rop.code.RegisterSpecList; 20f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectimport com.android.dx.rop.code.SourcePosition; 21f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectimport com.android.dx.util.AnnotatedOutput; 22f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 23f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/** 24f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Pseudo-instruction base class for zero-size (no code emitted) 25f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * instructions, which are generally used for tracking metainformation 26f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * about the code they are adjacent to. 27f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 28f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectpublic abstract class ZeroSizeInsn extends DalvInsn { 29f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /** 30f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Constructs an instance. The output address of this instance is initially 3199409883d9c4c0ffb49b070ce307bb33a9dfe9f1The Android Open Source Project * unknown ({@code -1}). 32f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 3399409883d9c4c0ffb49b070ce307bb33a9dfe9f1The Android Open Source Project * @param position {@code non-null;} source position 34f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 35f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project public ZeroSizeInsn(SourcePosition position) { 36f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project super(Dops.SPECIAL_FORMAT, position, RegisterSpecList.EMPTY); 37f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 38f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 39f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /** {@inheritDoc} */ 40f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project @Override 41f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project public final int codeSize() { 42f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return 0; 43f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 44f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 45f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /** {@inheritDoc} */ 46f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project @Override 47f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project public final void writeTo(AnnotatedOutput out) { 48f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project // Nothing to do here, for this class. 49f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 50f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 51f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /** {@inheritDoc} */ 52f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project @Override 53f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project public final DalvInsn withOpcode(Dop opcode) { 54f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project throw new RuntimeException("unsupported"); 55f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 56f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 57f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /** {@inheritDoc} */ 58f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project @Override 59f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project public DalvInsn withRegisterOffset(int delta) { 60f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return withRegisters(getRegisters().withOffset(delta)); 61f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 62f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 63