jcfa/src/jp/igapyon/jcfa/vo/JcfaOperandStack.java

   1 package jp.igapyon.jcfa.vo;
   2
   3 import java.util.EmptyStackException;
   4 import java.util.Stack;
   5
   6 import jp.igapyon.jcfa.vo.item.JcfaItem;
   7 import jp.igapyon.jcfa.vo.item.JcfaItemReference;
   8
   9 public class JcfaOperandStack {
  10         protected final Stack<JcfaItem> operandStack = new Stack<JcfaItem>();
  11
  12         public void push(final JcfaItem operandStackNode) {
  13                 operandStack.push(operandStackNode);
  14         }
  15
  16         public JcfaItem pop() {
  17                 try {
  18                         return operandStack.pop();
  19                 } catch (EmptyStackException ex) {
  20                         ex.printStackTrace();
  21                         return new JcfaItemReference();
  22                 }
  23         }
  24 }