| /* |
| * Copyright (C) 2007 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package com.android.dx.rop.code; |
| |
| /** |
| * Implementation of {@link TranslationAdvice} which conservatively answers |
| * <code>false</code> to all methods. |
| */ |
| public final class ConservativeTranslationAdvice |
| implements TranslationAdvice { |
| /** non-null; standard instance of this class */ |
| public static final ConservativeTranslationAdvice THE_ONE = |
| new ConservativeTranslationAdvice(); |
| |
| /** |
| * This class is not publicly instantiable. Use {@link #THE_ONE}. |
| */ |
| private ConservativeTranslationAdvice() { |
| // This space intentionally left blank. |
| } |
| |
| /** {@inheritDoc} */ |
| public boolean hasConstantOperation(Rop opcode, |
| RegisterSpec sourceA, RegisterSpec sourceB) { |
| return false; |
| } |
| |
| /** {@inheritDoc} */ |
| public boolean requiresSourcesInOrder(Rop opcode, |
| RegisterSpecList sources) { |
| return false; |
| } |
| |
| /** {@inheritDoc} */ |
| public int getMaxOptimalRegisterCount() { |
| return Integer.MAX_VALUE; |
| } |
| } |