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; 2332631e6ee656840701f76e0d736290bfcd4aab7emikaelpeltierimport com.android.dx.ssa.RegisterMapper; 24f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 25f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project/** 26f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Pseudo-instruction which is used to hold a snapshot of the 27f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * state of local variable name mappings that exists immediately after 28f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * the instance in an instruction array. 29f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 30f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Projectpublic final class LocalSnapshot extends ZeroSizeInsn { 3199409883d9c4c0ffb49b070ce307bb33a9dfe9f1The Android Open Source Project /** {@code non-null;} local state associated with this instance */ 32f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project private final RegisterSpecSet locals; 33f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 34f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /** 35f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Constructs an instance. The output address of this instance is initially 3699409883d9c4c0ffb49b070ce307bb33a9dfe9f1The Android Open Source Project * unknown ({@code -1}). 37de75089fb7216d19e9c22cce4dc62a49513477d3Carl Shapiro * 3899409883d9c4c0ffb49b070ce307bb33a9dfe9f1The Android Open Source Project * @param position {@code non-null;} source position 3999409883d9c4c0ffb49b070ce307bb33a9dfe9f1The Android Open Source Project * @param locals {@code non-null;} associated local variable state 40f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 41f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project public LocalSnapshot(SourcePosition position, RegisterSpecSet locals) { 42f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project super(position); 43f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 44f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (locals == null) { 45f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project throw new NullPointerException("locals == null"); 46f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 47f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 48f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project this.locals = locals; 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 DalvInsn withRegisterOffset(int delta) { 54f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return new LocalSnapshot(getPosition(), locals.withOffset(delta)); 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 withRegisters(RegisterSpecList registers) { 60f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return new LocalSnapshot(getPosition(), locals); 61f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 62f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 63f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /** 64f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project * Gets the local state associated with this instance. 65de75089fb7216d19e9c22cce4dc62a49513477d3Carl Shapiro * 6699409883d9c4c0ffb49b070ce307bb33a9dfe9f1The Android Open Source Project * @return {@code non-null;} the state 67f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project */ 68f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project public RegisterSpecSet getLocals() { 69f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return locals; 70f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 71f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 72f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /** {@inheritDoc} */ 73f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project @Override 74f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project protected String argString() { 75f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return locals.toString(); 76f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 77f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 78f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project /** {@inheritDoc} */ 79f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project @Override 80f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project protected String listingString0(boolean noteIndices) { 81f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project int sz = locals.size(); 82f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project int max = locals.getMaxSize(); 839dbd802c8c96c3a66873bc600bc7d1374a1d08e5Orion Hodson StringBuilder sb = new StringBuilder(100 + sz * 40); 84f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 85f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project sb.append("local-snapshot"); 86f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 87f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project for (int i = 0; i < max; i++) { 88f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project RegisterSpec spec = locals.get(i); 89f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project if (spec != null) { 90f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project sb.append("\n "); 91f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project sb.append(LocalStart.localString(spec)); 92f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 93f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 94f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project 95f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project return sb.toString(); 96f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project } 9732631e6ee656840701f76e0d736290bfcd4aab7emikaelpeltier 9832631e6ee656840701f76e0d736290bfcd4aab7emikaelpeltier /** {@inheritDoc} */ 9932631e6ee656840701f76e0d736290bfcd4aab7emikaelpeltier @Override 10032631e6ee656840701f76e0d736290bfcd4aab7emikaelpeltier public DalvInsn withMapper(RegisterMapper mapper) { 10132631e6ee656840701f76e0d736290bfcd4aab7emikaelpeltier return new LocalSnapshot(getPosition(), mapper.map(locals)); 10232631e6ee656840701f76e0d736290bfcd4aab7emikaelpeltier } 103f6c387128427e121477c1b32ad35cdcaa5101ba3The Android Open Source Project} 104