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.RegisterSpec; 20f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectimport com.android.dx.rop.code.RegisterSpecList; 21f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectimport com.android.dx.rop.code.SourcePosition; 22f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 23f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/** 24f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Pseudo-instruction which is used to introduce a new local variable. That 25f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * is, an instance of this class in an instruction stream indicates that 26f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * starting with the subsequent instruction, the indicated variable 27f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * is bound. 28f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 29f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectpublic final class LocalStart extends ZeroSizeInsn { 30f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /** 3199409883d9c4c0ffb49b070ce307bb33a9dfe9f1The Android Open Source Project * {@code non-null;} register spec representing the local variable introduced 32f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * by this instance 33f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 34f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project private final RegisterSpec local; 35f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 36f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /** 37f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Returns the local variable listing string for a single register spec. 38f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 3999409883d9c4c0ffb49b070ce307bb33a9dfe9f1The Android Open Source Project * @param spec {@code non-null;} the spec to convert 4099409883d9c4c0ffb49b070ce307bb33a9dfe9f1The Android Open Source Project * @return {@code non-null;} the string form 41f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 42f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project public static String localString(RegisterSpec spec) { 43f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return spec.regString() + ' ' + spec.getLocalItem().toString() + ": " + 44f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project spec.getTypeBearer().toHuman(); 45f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 46f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 47f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /** 48f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Constructs an instance. The output address of this instance is initially 4999409883d9c4c0ffb49b070ce307bb33a9dfe9f1The Android Open Source Project * unknown ({@code -1}). 50f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 5199409883d9c4c0ffb49b070ce307bb33a9dfe9f1The Android Open Source Project * @param position {@code non-null;} source position 5299409883d9c4c0ffb49b070ce307bb33a9dfe9f1The Android Open Source Project * @param local {@code non-null;} register spec representing the local 53f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * variable introduced by this instance 54f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 55f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project public LocalStart(SourcePosition position, RegisterSpec local) { 56f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project super(position); 57f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 58f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (local == null) { 59f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project throw new NullPointerException("local == null"); 60f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 61f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 62f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project this.local = local; 63f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 64f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 65f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /** {@inheritDoc} */ 66f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project @Override 67f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project public DalvInsn withRegisterOffset(int delta) { 68f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return new LocalStart(getPosition(), local.withOffset(delta)); 69f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 70f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 71f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /** {@inheritDoc} */ 72f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project @Override 73f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project public DalvInsn withRegisters(RegisterSpecList registers) { 74f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return new LocalStart(getPosition(), local); 75f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 76f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 77f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /** 78f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Gets the register spec representing the local variable introduced 79f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * by this instance. 80f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * 8199409883d9c4c0ffb49b070ce307bb33a9dfe9f1The Android Open Source Project * @return {@code non-null;} the register spec 82f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 83f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project public RegisterSpec getLocal() { 84f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return local; 85f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 86f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 87f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /** {@inheritDoc} */ 88f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project @Override 89f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project protected String argString() { 90f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return local.toString(); 91f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 92f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 93f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /** {@inheritDoc} */ 94f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project @Override 95f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project protected String listingString0(boolean noteIndices) { 96f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return "local-start " + localString(local); 97f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 98f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 99