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.RegisterSpecSet; 22f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectimport com.android.dx.rop.code.SourcePosition; 23f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 24f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/** 25f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Pseudo-instruction which is used to hold a snapshot of the 26f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * state of local variable name mappings that exists immediately after 27f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * the instance in an instruction array. 28f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 29f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectpublic final class LocalSnapshot extends ZeroSizeInsn { 3099409883d9c4c0ffb49b070ce307bb33a9dfe9f1The Android Open Source Project /** {@code non-null;} local state associated with this instance */ 31f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project private final RegisterSpecSet locals; 32f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 33f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /** 34f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Constructs an instance. The output address of this instance is initially 3599409883d9c4c0ffb49b070ce307bb33a9dfe9f1The Android Open Source Project * unknown ({@code -1}). 36de75089fb7216d19e9c22cce4dc62a49513477d3Carl Shapiro * 3799409883d9c4c0ffb49b070ce307bb33a9dfe9f1The Android Open Source Project * @param position {@code non-null;} source position 3899409883d9c4c0ffb49b070ce307bb33a9dfe9f1The Android Open Source Project * @param locals {@code non-null;} associated local variable state 39f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 40f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project public LocalSnapshot(SourcePosition position, RegisterSpecSet locals) { 41f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project super(position); 42f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 43f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (locals == null) { 44f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project throw new NullPointerException("locals == null"); 45f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 46f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 47f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project this.locals = locals; 48f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 49f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 50f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /** {@inheritDoc} */ 51f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project @Override 52f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project public DalvInsn withRegisterOffset(int delta) { 53f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return new LocalSnapshot(getPosition(), locals.withOffset(delta)); 54f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 55f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 56f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /** {@inheritDoc} */ 57f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project @Override 58f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project public DalvInsn withRegisters(RegisterSpecList registers) { 59f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return new LocalSnapshot(getPosition(), locals); 60f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 61f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 62f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /** 63f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Gets the local state associated with this instance. 64de75089fb7216d19e9c22cce4dc62a49513477d3Carl Shapiro * 6599409883d9c4c0ffb49b070ce307bb33a9dfe9f1The Android Open Source Project * @return {@code non-null;} the state 66f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 67f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project public RegisterSpecSet getLocals() { 68f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return locals; 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 protected String argString() { 74f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return locals.toString(); 75f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 76f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 77f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /** {@inheritDoc} */ 78f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project @Override 79f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project protected String listingString0(boolean noteIndices) { 80f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project int sz = locals.size(); 81f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project int max = locals.getMaxSize(); 82f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project StringBuffer sb = new StringBuffer(100 + sz * 40); 83f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 84f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project sb.append("local-snapshot"); 85f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 86f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project for (int i = 0; i < max; i++) { 87f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project RegisterSpec spec = locals.get(i); 88f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (spec != null) { 89f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project sb.append("\n "); 90f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project sb.append(LocalStart.localString(spec)); 91f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 92f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 93f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 94f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return sb.toString(); 95f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 96f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 97