content: /**
   * JReversePro - Java Decompiler / Disassembler.
   * Copyright (C) 2008 Karthik Kumar.
   * 
   * 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 org.jreversepro.ast.evaluator;
  
  import java.util.logging.Logger;
  
  import org.jreversepro.CustomLoggerFactory;
  import org.jreversepro.ast.expression.ConditionExpression;
  import org.jreversepro.ast.intermediate.ConditionalLine;
  import org.jreversepro.ast.intermediate.LineOfCodeList;
  import org.jreversepro.jls.JLSConstants;
  import org.jreversepro.jvm.JVMConstants;
  import org.jreversepro.jvm.Opcodes;
  import org.jreversepro.reflect.ConstantPool;
  import org.jreversepro.reflect.instruction.Instruction;
  import org.jreversepro.reflect.variabletable.VariableTable;
  
  
  /**
   * Evaluates the instructions (byte codes) as appropriate.
   * 
   * @author karthik.kumar
   * 
   */
  public abstract class AbstractInstructionEvaluator implements JVMConstants,
      JLSConstants, Opcodes {
  
    public AbstractInstructionEvaluator(EvaluatorContext context) {
      pool = context.pool;
      varTable = context.varTable;
      evalMachine = context.evalMachine;
      statements = context.statements;
  
    }
  
    abstract Iterable<Integer> getProcessingOpcodes();
  
    abstract void evaluate(Instruction ins);
  
  
  
    protected void addConditional(Instruction ins, ConditionExpression expr) {
      statements.append(new ConditionalLine(ins, expr));
    }
  
    protected ConstantPool pool;
    protected VariableTable varTable;
    protected String methodReturnType;
    protected LineOfCodeList statements;
    protected EvaluatorMachine evalMachine;
  
    protected static final Logger logger = CustomLoggerFactory.createLogger();
  
  }
  