| /* |
| * Copyright 2000-2009 JetBrains s.r.o. |
| * |
| * 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. |
| */ |
| |
| /* |
| * Created by IntelliJ IDEA. |
| * User: cdr |
| * Date: Sep 20, 2002 |
| */ |
| package com.intellij.psi.controlFlow; |
| |
| import com.intellij.util.containers.IntArrayList; |
| |
| import java.util.ArrayList; |
| |
| public class ControlFlowStack { |
| private final IntArrayList myIpStack = new IntArrayList(); |
| private final ArrayList<CallInstruction> myCallInstructionStack = new ArrayList<CallInstruction>(); |
| |
| public void push(int ip, CallInstruction callInstruction) { |
| myIpStack.add(ip); |
| myCallInstructionStack.add(callInstruction); |
| } |
| |
| public int pop(boolean pushBack) { |
| final int i = myIpStack.get(myIpStack.size() - 1); |
| if (!pushBack) { |
| myIpStack.remove(myIpStack.size()-1); |
| myCallInstructionStack.remove(myCallInstructionStack.size()-1); |
| } |
| return i; |
| } |
| public int peekReturnOffset() { |
| return myIpStack.get(myIpStack.size() - 1); |
| } |
| public int size() { |
| return myIpStack.size(); |
| } |
| |
| } |