content: /*
   * 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.taobao.android.dx.rop.code;
  
  /**
   * Implementation of {@link TranslationAdvice} which conservatively answers
   * {@code false} to all methods.
   */
  public final class ConservativeTranslationAdvice
          implements TranslationAdvice {
      /** {@code 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;
      }
  }
  